#include "collectd.h"
#include "common.h"
-#include "plugin.h"
#include "configfile.h"
#include "filter_chain.h"
+#include "plugin.h"
#include "utils_avltree.h"
#include "utils_cache.h"
#include "utils_complain.h"
-#include "utils_llist.h"
#include "utils_heap.h"
-#include "utils_time.h"
+#include "utils_llist.h"
#include "utils_random.h"
+#include "utils_time.h"
#if HAVE_PTHREAD_NP_H
-#
include <pthread_np.h> /* for pthread_set_name_np(3) */
+#include <pthread_np.h> /* for pthread_set_name_np(3) */
#endif
#include <ltdl.h>
/*
* Private structures
*/
-struct callback_func_s
-{
- void *cf_callback;
- user_data_t cf_udata;
- plugin_ctx_t cf_ctx;
+struct callback_func_s {
+ void *cf_callback;
+ user_data_t cf_udata;
+ plugin_ctx_t cf_ctx;
};
typedef struct callback_func_s callback_func_t;
-#define RF_SIMPLE 0
+#define RF_SIMPLE 0
#define RF_COMPLEX 1
-#define RF_REMOVE 65535
-struct read_func_s
-{
- /* `read_func_t' "inherits" from `callback_func_t'.
- * The `rf_super' member MUST be the first one in this structure! */
+#define RF_REMOVE 65535
+struct read_func_s {
+/* `read_func_t' "inherits" from `callback_func_t'.
+ * The `rf_super' member MUST be the first one in this structure! */
#define rf_callback rf_super.cf_callback
#define rf_udata rf_super.cf_udata
#define rf_ctx rf_super.cf_ctx
- callback_func_t rf_super;
- char rf_group[DATA_MAX_NAME_LEN];
- char *rf_name;
- int rf_type;
- cdtime_t rf_interval;
- cdtime_t rf_effective_interval;
- cdtime_t rf_next_read;
+ callback_func_t rf_super;
+ char rf_group[DATA_MAX_NAME_LEN];
+ char *rf_name;
+ int rf_type;
+ cdtime_t rf_interval;
+ cdtime_t rf_effective_interval;
+ cdtime_t rf_next_read;
};
typedef struct read_func_s read_func_t;
struct write_queue_s;
typedef struct write_queue_s write_queue_t;
-struct write_queue_s
-{
- value_list_t *vl;
- plugin_ctx_t ctx;
- write_queue_t *next;
+struct write_queue_s {
+ value_list_t *vl;
+ plugin_ctx_t ctx;
+ write_queue_t *next;
};
struct flush_callback_s {
- char *name;
- cdtime_t timeout;
+ char *name;
+ cdtime_t timeout;
};
typedef struct flush_callback_s flush_callback_t;
static char *plugindir = NULL;
#ifndef DEFAULT_MAX_READ_INTERVAL
-# define DEFAULT_MAX_READ_INTERVAL TIME_T_TO_CDTIME_T_STATIC (86400)
+#define DEFAULT_MAX_READ_INTERVAL TIME_T_TO_CDTIME_T_STATIC(86400)
#endif
-static c_heap_t *read_heap = NULL;
-static llist_t *read_list;
-static int read_loop = 1;
+static c_heap_t *read_heap = NULL;
+static llist_t *read_list;
+static int read_loop = 1;
static pthread_mutex_t read_lock = PTHREAD_MUTEX_INITIALIZER;
-static pthread_cond_t read_cond = PTHREAD_COND_INITIALIZER;
-static pthread_t *read_threads = NULL;
-static size_t read_threads_num = 0;
-static cdtime_t max_read_interval = DEFAULT_MAX_READ_INTERVAL;
-
-static write_queue_t *write_queue_head;
-static write_queue_t *write_queue_tail;
-static long write_queue_length = 0;
-static _Bool write_loop = 1;
+static pthread_cond_t read_cond = PTHREAD_COND_INITIALIZER;
+static pthread_t *read_threads = NULL;
+static size_t read_threads_num = 0;
+static cdtime_t max_read_interval = DEFAULT_MAX_READ_INTERVAL;
+
+static write_queue_t *write_queue_head;
+static write_queue_t *write_queue_tail;
+static long write_queue_length = 0;
+static _Bool write_loop = 1;
static pthread_mutex_t write_lock = PTHREAD_MUTEX_INITIALIZER;
-static pthread_cond_t write_cond = PTHREAD_COND_INITIALIZER;
-static pthread_t *write_threads = NULL;
-static size_t write_threads_num = 0;
+static pthread_cond_t write_cond = PTHREAD_COND_INITIALIZER;
+static pthread_t *write_threads = NULL;
+static size_t write_threads_num = 0;
-static pthread_key_t plugin_ctx_key;
-static _Bool plugin_ctx_key_initialized = 0;
+static pthread_key_t plugin_ctx_key;
+static _Bool plugin_ctx_key_initialized = 0;
-static long write_limit_high = 0;
-static long write_limit_low = 0;
+static long write_limit_high = 0;
+static long write_limit_low = 0;
-static derive_t stats_values_dropped = 0;
-static _Bool record_statistics = 0;
+static derive_t stats_values_dropped = 0;
+static _Bool record_statistics = 0;
/*
* Static functions
*/
-static int plugin_dispatch_values_internal (value_list_t *vl);
+static int plugin_dispatch_values_internal(value_list_t *vl);
-static const char *plugin_get_dir (void)
-{
- if (plugindir == NULL)
- return (PLUGINDIR);
- else
- return (plugindir);
+static const char *plugin_get_dir(void) {
+ if (plugindir == NULL)
+ return (PLUGINDIR);
+ else
+ return (plugindir);
}
-static void plugin_update_internal_statistics (void) { /* {{{ */
-
- gauge_t copy_write_queue_length = (gauge_t) write_queue_length;
-
- /* Initialize `vl' */
- value_list_t vl = VALUE_LIST_INIT;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "collectd", sizeof (vl.plugin));
-
- /* Write queue */
- sstrncpy (vl.plugin_instance, "write_queue",
- sizeof (vl.plugin_instance));
-
- /* Write queue : queue length */
- vl.values = &(value_t) { .gauge = copy_write_queue_length };
- vl.values_len = 1;
- sstrncpy (vl.type, "queue_length", sizeof (vl.type));
- vl.type_instance[0] = 0;
- plugin_dispatch_values (&vl);
-
- /* Write queue : Values dropped (queue length > low limit) */
- vl.values = &(value_t) { .gauge = (gauge_t) stats_values_dropped };
- vl.values_len = 1;
- sstrncpy (vl.type, "derive", sizeof (vl.type));
- sstrncpy (vl.type_instance, "dropped", sizeof (vl.type_instance));
- plugin_dispatch_values (&vl);
-
- /* Cache */
- sstrncpy (vl.plugin_instance, "cache",
- sizeof (vl.plugin_instance));
-
- /* Cache : Nb entry in cache tree */
- vl.values = &(value_t) { .gauge = (gauge_t) uc_get_size() };
- vl.values_len = 1;
- sstrncpy (vl.type, "cache_size", sizeof (vl.type));
- vl.type_instance[0] = 0;
- plugin_dispatch_values (&vl);
-
- return;
+static void plugin_update_internal_statistics(void) { /* {{{ */
+
+ gauge_t copy_write_queue_length = (gauge_t)write_queue_length;
+
+ /* Initialize `vl' */
+ value_list_t vl = VALUE_LIST_INIT;
+ sstrncpy(vl.host, hostname_g, sizeof(vl.host));
+ sstrncpy(vl.plugin, "collectd", sizeof(vl.plugin));
+
+ /* Write queue */
+ sstrncpy(vl.plugin_instance, "write_queue", sizeof(vl.plugin_instance));
+
+ /* Write queue : queue length */
+ vl.values = &(value_t){.gauge = copy_write_queue_length};
+ vl.values_len = 1;
+ sstrncpy(vl.type, "queue_length", sizeof(vl.type));
+ vl.type_instance[0] = 0;
+ plugin_dispatch_values(&vl);
+
+ /* Write queue : Values dropped (queue length > low limit) */
+ vl.values = &(value_t){.gauge = (gauge_t)stats_values_dropped};
+ vl.values_len = 1;
+ sstrncpy(vl.type, "derive", sizeof(vl.type));
+ sstrncpy(vl.type_instance, "dropped", sizeof(vl.type_instance));
+ plugin_dispatch_values(&vl);
+
+ /* Cache */
+ sstrncpy(vl.plugin_instance, "cache", sizeof(vl.plugin_instance));
+
+ /* Cache : Nb entry in cache tree */
+ vl.values = &(value_t){.gauge = (gauge_t)uc_get_size()};
+ vl.values_len = 1;
+ sstrncpy(vl.type, "cache_size", sizeof(vl.type));
+ vl.type_instance[0] = 0;
+ plugin_dispatch_values(&vl);
+
+ return;
} /* }}} void plugin_update_internal_statistics */
-static void destroy_callback (callback_func_t *cf) /* {{{ */
+static void destroy_callback(callback_func_t *cf) /* {{{ */
{
- if (cf == NULL)
- return;
-
- if ((cf->cf_udata.data != NULL) && (cf->cf_udata.free_func != NULL))
- {
- cf->cf_udata.free_func (cf->cf_udata.data);
- cf->cf_udata.data = NULL;
- cf->cf_udata.free_func = NULL;
- }
- sfree (cf);
+ if (cf == NULL)
+ return;
+
+ if ((cf->cf_udata.data != NULL) && (cf->cf_udata.free_func != NULL)) {
+ cf->cf_udata.free_func(cf->cf_udata.data);
+ cf->cf_udata.data = NULL;
+ cf->cf_udata.free_func = NULL;
+ }
+ sfree(cf);
} /* }}} void destroy_callback */
-static void destroy_all_callbacks (llist_t **list) /* {{{ */
+static void destroy_all_callbacks(llist_t **list) /* {{{ */
{
- llentry_t *le;
+ llentry_t *le;
- if (*list == NULL)
- return;
+ if (*list == NULL)
+ return;
- le = llist_head (*list);
- while (le != NULL)
- {
- llentry_t *le_next;
+ le = llist_head(*list);
+ while (le != NULL) {
+ llentry_t *le_next;
- le_next = le->next;
+ le_next = le->next;
- sfree (le->key);
- destroy_callback (le->value);
- le->value = NULL;
+ sfree(le->key);
+ destroy_callback(le->value);
+ le->value = NULL;
- le = le_next;
- }
+ le = le_next;
+ }
- llist_destroy (*list);
- *list = NULL;
+ llist_destroy(*list);
+ *list = NULL;
} /* }}} void destroy_all_callbacks */
-static void destroy_read_heap (void) /* {{{ */
+static void destroy_read_heap(void) /* {{{ */
{
- if (read_heap == NULL)
- return;
-
- while (42)
- {
- read_func_t *rf;
-
- rf = c_heap_get_root (read_heap);
- if (rf == NULL)
- break;
- sfree (rf->rf_name);
- destroy_callback ((callback_func_t *) rf);
- }
-
- c_heap_destroy (read_heap);
- read_heap = NULL;
+ if (read_heap == NULL)
+ return;
+
+ while (42) {
+ read_func_t *rf;
+
+ rf = c_heap_get_root(read_heap);
+ if (rf == NULL)
+ break;
+ sfree(rf->rf_name);
+ destroy_callback((callback_func_t *)rf);
+ }
+
+ c_heap_destroy(read_heap);
+ read_heap = NULL;
} /* }}} void destroy_read_heap */
-static int register_callback (llist_t **list, /* {{{ */
- const char *name, callback_func_t *cf)
-{
- llentry_t *le;
- char *key;
-
- if (*list == NULL)
- {
- *list = llist_create ();
- if (*list == NULL)
- {
- ERROR ("plugin: register_callback: "
- "llist_create failed.");
- destroy_callback (cf);
- return (-1);
- }
- }
-
- key = strdup (name);
- if (key == NULL)
- {
- ERROR ("plugin: register_callback: strdup failed.");
- destroy_callback (cf);
- return (-1);
- }
-
- le = llist_search (*list, name);
- if (le == NULL)
- {
- le = llentry_create (key, cf);
- if (le == NULL)
- {
- ERROR ("plugin: register_callback: "
- "llentry_create failed.");
- sfree (key);
- destroy_callback (cf);
- return (-1);
- }
-
- llist_append (*list, le);
- }
- else
- {
- callback_func_t *old_cf;
-
- old_cf = le->value;
- le->value = cf;
-
- WARNING ("plugin: register_callback: "
- "a callback named `%s' already exists - "
- "overwriting the old entry!", name);
-
- destroy_callback (old_cf);
- sfree (key);
- }
-
- return (0);
+static int register_callback(llist_t **list, /* {{{ */
+ const char *name, callback_func_t *cf) {
+ llentry_t *le;
+ char *key;
+
+ if (*list == NULL) {
+ *list = llist_create();
+ if (*list == NULL) {
+ ERROR("plugin: register_callback: "
+ "llist_create failed.");
+ destroy_callback(cf);
+ return (-1);
+ }
+ }
+
+ key = strdup(name);
+ if (key == NULL) {
+ ERROR("plugin: register_callback: strdup failed.");
+ destroy_callback(cf);
+ return (-1);
+ }
+
+ le = llist_search(*list, name);
+ if (le == NULL) {
+ le = llentry_create(key, cf);
+ if (le == NULL) {
+ ERROR("plugin: register_callback: "
+ "llentry_create failed.");
+ sfree(key);
+ destroy_callback(cf);
+ return (-1);
+ }
+
+ llist_append(*list, le);
+ } else {
+ callback_func_t *old_cf;
+
+ old_cf = le->value;
+ le->value = cf;
+
+ WARNING("plugin: register_callback: "
+ "a callback named `%s' already exists - "
+ "overwriting the old entry!",
+ name);
+
+ destroy_callback(old_cf);
+ sfree(key);
+ }
+
+ return (0);
} /* }}} int register_callback */
-static void log_list_callbacks (llist_t **list, /* {{{ */
- const char *comment)
-{
- char *str;
- int len;
- int i;
- llentry_t *le;
- int n;
- char **keys;
-
- n = llist_size(*list);
- if (n == 0)
- {
- INFO("%s [none]", comment);
- return;
- }
-
- keys = calloc(n, sizeof(char*));
-
- if (keys == NULL)
- {
- ERROR("%s: failed to allocate memory for list of callbacks",
- comment);
-
- return;
- }
-
- for (le = llist_head (*list), i = 0, len = 0;
- le != NULL;
- le = le->next, i++)
- {
- keys[i] = le->key;
- len += strlen(le->key) + 6;
- }
- str = malloc(len + 10);
- if (str == NULL)
- {
- ERROR("%s: failed to allocate memory for list of callbacks",
- comment);
- }
- else
- {
- *str = '\0';
- strjoin(str, len, keys, n, "', '");
- INFO("%s ['%s']", comment, str);
- sfree (str);
- }
- sfree (keys);
+static void log_list_callbacks(llist_t **list, /* {{{ */
+ const char *comment) {
+ char *str;
+ int len;
+ int i;
+ llentry_t *le;
+ int n;
+ char **keys;
+
+ n = llist_size(*list);
+ if (n == 0) {
+ INFO("%s [none]", comment);
+ return;
+ }
+
+ keys = calloc(n, sizeof(char *));
+
+ if (keys == NULL) {
+ ERROR("%s: failed to allocate memory for list of callbacks", comment);
+
+ return;
+ }
+
+ for (le = llist_head(*list), i = 0, len = 0; le != NULL; le = le->next, i++) {
+ keys[i] = le->key;
+ len += strlen(le->key) + 6;
+ }
+ str = malloc(len + 10);
+ if (str == NULL) {
+ ERROR("%s: failed to allocate memory for list of callbacks", comment);
+ } else {
+ *str = '\0';
+ strjoin(str, len, keys, n, "', '");
+ INFO("%s ['%s']", comment, str);
+ sfree(str);
+ }
+ sfree(keys);
} /* }}} void log_list_callbacks */
-static int create_register_callback (llist_t **list, /* {{{ */
- const char *name, void *callback, user_data_t const *ud)
-{
- callback_func_t *cf;
-
- cf = calloc (1, sizeof (*cf));
- if (cf == NULL)
- {
- ERROR ("plugin: create_register_callback: calloc failed.");
- return (-1);
- }
-
- cf->cf_callback = callback;
- if (ud == NULL)
- {
- cf->cf_udata.data = NULL;
- cf->cf_udata.free_func = NULL;
- }
- else
- {
- cf->cf_udata = *ud;
- }
-
- cf->cf_ctx = plugin_get_ctx ();
-
- return (register_callback (list, name, cf));
+static int create_register_callback(llist_t **list, /* {{{ */
+ const char *name, void *callback,
+ user_data_t const *ud) {
+ callback_func_t *cf;
+
+ cf = calloc(1, sizeof(*cf));
+ if (cf == NULL) {
+ ERROR("plugin: create_register_callback: calloc failed.");
+ return (-1);
+ }
+
+ cf->cf_callback = callback;
+ if (ud == NULL) {
+ cf->cf_udata.data = NULL;
+ cf->cf_udata.free_func = NULL;
+ } else {
+ cf->cf_udata = *ud;
+ }
+
+ cf->cf_ctx = plugin_get_ctx();
+
+ return (register_callback(list, name, cf));
} /* }}} int create_register_callback */
-static int plugin_unregister (llist_t *list, const char *name) /* {{{ */
+static int plugin_unregister(llist_t *list, const char *name) /* {{{ */
{
- llentry_t *e;
+ llentry_t *e;
- if (list == NULL)
- return (-1);
+ if (list == NULL)
+ return (-1);
- e = llist_search (list, name);
- if (e == NULL)
- return (-1);
+ e = llist_search(list, name);
+ if (e == NULL)
+ return (-1);
- llist_remove (list, e);
+ llist_remove(list, e);
- sfree (e->key);
- destroy_callback (e->value);
+ sfree(e->key);
+ destroy_callback(e->value);
- llentry_destroy (e);
+ llentry_destroy(e);
- return (0);
+ return (0);
} /* }}} int plugin_unregister */
/*
* object, but it will bitch about a shared object not having a
* ``module_register'' symbol..
*/
-static int plugin_load_file (char *file, uint32_t flags)
-{
- lt_dlhandle dlh;
- void (*reg_handle) (void);
+static int plugin_load_file(char *file, uint32_t flags) {
+ lt_dlhandle dlh;
+ void (*reg_handle)(void);
- lt_dlinit ();
- lt_dlerror (); /* clear errors */
+ lt_dlinit();
+ lt_dlerror(); /* clear errors */
#if LIBTOOL_VERSION == 2
- if (flags & PLUGIN_FLAGS_GLOBAL) {
- lt_dladvise advise;
- lt_dladvise_init(&advise);
- lt_dladvise_global(&advise);
- dlh = lt_dlopenadvise(file, advise);
- lt_dladvise_destroy(&advise);
- } else {
- dlh = lt_dlopen (file);
- }
+ if (flags & PLUGIN_FLAGS_GLOBAL) {
+ lt_dladvise advise;
+ lt_dladvise_init(&advise);
+ lt_dladvise_global(&advise);
+ dlh = lt_dlopenadvise(file, advise);
+ lt_dladvise_destroy(&advise);
+ } else {
+ dlh = lt_dlopen(file);
+ }
#else /* if LIBTOOL_VERSION == 1 */
- if (flags & PLUGIN_FLAGS_GLOBAL)
- WARNING ("plugin_load_file: The global flag is not supported, "
- "libtool 2 is required for this.");
- dlh = lt_dlopen (file);
+ if (flags & PLUGIN_FLAGS_GLOBAL)
+ WARNING("plugin_load_file: The global flag is not supported, "
+ "libtool 2 is required for this.");
+ dlh = lt_dlopen(file);
#endif
- if (dlh == NULL)
- {
- char errbuf[1024] = "";
-
- ssnprintf (errbuf, sizeof (errbuf),
- "lt_dlopen (\"%s\") failed: %s. "
- "The most common cause for this problem is "
- "missing dependencies. Use ldd(1) to check "
- "the dependencies of the plugin "
- "/ shared object.",
- file, lt_dlerror ());
-
- ERROR ("%s", errbuf);
- /* Make sure this is printed to STDERR in any case, but also
- * make sure it's printed only once. */
- if (list_log != NULL)
- fprintf (stderr, "ERROR: %s\n", errbuf);
-
- return (1);
- }
-
- if ((reg_handle = (void (*) (void)) lt_dlsym (dlh, "module_register")) == NULL)
- {
- WARNING ("Couldn't find symbol \"module_register\" in \"%s\": %s\n",
- file, lt_dlerror ());
- lt_dlclose (dlh);
- return (-1);
- }
-
- (*reg_handle) ();
-
- return (0);
+ if (dlh == NULL) {
+ char errbuf[1024] = "";
+
+ ssnprintf(errbuf, sizeof(errbuf),
+ "lt_dlopen (\"%s\") failed: %s. "
+ "The most common cause for this problem is "
+ "missing dependencies. Use ldd(1) to check "
+ "the dependencies of the plugin "
+ "/ shared object.",
+ file, lt_dlerror());
+
+ ERROR("%s", errbuf);
+ /* Make sure this is printed to STDERR in any case, but also
+ * make sure it's printed only once. */
+ if (list_log != NULL)
+ fprintf(stderr, "ERROR: %s\n", errbuf);
+
+ return (1);
+ }
+
+ if ((reg_handle = (void (*)(void))lt_dlsym(dlh, "module_register")) == NULL) {
+ WARNING("Couldn't find symbol \"module_register\" in \"%s\": %s\n", file,
+ lt_dlerror());
+ lt_dlclose(dlh);
+ return (-1);
+ }
+
+ (*reg_handle)();
+
+ return (0);
}
-static void *plugin_read_thread (void __attribute__((unused)) *args)
-{
- while (read_loop != 0)
- {
- read_func_t *rf;
- plugin_ctx_t old_ctx;
- cdtime_t start;
- cdtime_t now;
- cdtime_t elapsed;
- int status;
- int rf_type;
- int rc;
-
- /* Get the read function that needs to be read next.
- * We don't need to hold "read_lock" for the heap, but we need
- * to call c_heap_get_root() and pthread_cond_wait() in the
- * same protected block. */
- pthread_mutex_lock (&read_lock);
- rf = c_heap_get_root (read_heap);
- if (rf == NULL)
- {
- pthread_cond_wait (&read_cond, &read_lock);
- pthread_mutex_unlock (&read_lock);
- continue;
- }
- pthread_mutex_unlock (&read_lock);
-
- if (rf->rf_interval == 0)
- {
- /* this should not happen, because the interval is set
- * for each plugin when loading it
- * XXX: issue a warning? */
- rf->rf_interval = plugin_get_interval ();
- rf->rf_effective_interval = rf->rf_interval;
-
- rf->rf_next_read = cdtime ();
- }
-
- /* sleep until this entry is due,
- * using pthread_cond_timedwait */
- pthread_mutex_lock (&read_lock);
- /* In pthread_cond_timedwait, spurious wakeups are possible
- * (and really happen, at least on NetBSD with > 1 CPU), thus
- * we need to re-evaluate the condition every time
- * pthread_cond_timedwait returns. */
- rc = 0;
- while ((read_loop != 0)
- && (cdtime () < rf->rf_next_read)
- && rc == 0)
- {
- rc = pthread_cond_timedwait (&read_cond, &read_lock,
- &CDTIME_T_TO_TIMESPEC (rf->rf_next_read));
- }
-
- /* Must hold `read_lock' when accessing `rf->rf_type'. */
- rf_type = rf->rf_type;
- pthread_mutex_unlock (&read_lock);
-
- /* Check if we're supposed to stop.. This may have interrupted
- * the sleep, too. */
- if (read_loop == 0)
- {
- /* Insert `rf' again, so it can be free'd correctly */
- c_heap_insert (read_heap, rf);
- break;
- }
-
- /* The entry has been marked for deletion. The linked list
- * entry has already been removed by `plugin_unregister_read'.
- * All we have to do here is free the `read_func_t' and
- * continue. */
- if (rf_type == RF_REMOVE)
- {
- DEBUG ("plugin_read_thread: Destroying the `%s' "
- "callback.", rf->rf_name);
- sfree (rf->rf_name);
- destroy_callback ((callback_func_t *) rf);
- rf = NULL;
- continue;
- }
-
- DEBUG ("plugin_read_thread: Handling `%s'.", rf->rf_name);
-
- start = cdtime ();
-
- old_ctx = plugin_set_ctx (rf->rf_ctx);
-
- if (rf_type == RF_SIMPLE)
- {
- int (*callback) (void);
-
- callback = rf->rf_callback;
- status = (*callback) ();
- }
- else
- {
- plugin_read_cb callback;
-
- assert (rf_type == RF_COMPLEX);
-
- callback = rf->rf_callback;
- status = (*callback) (&rf->rf_udata);
- }
-
- plugin_set_ctx (old_ctx);
-
- /* If the function signals failure, we will increase the
- * intervals in which it will be called. */
- if (status != 0)
- {
- rf->rf_effective_interval *= 2;
- if (rf->rf_effective_interval > max_read_interval)
- rf->rf_effective_interval = max_read_interval;
-
- NOTICE ("read-function of plugin `%s' failed. "
- "Will suspend it for %.3f seconds.",
- rf->rf_name,
- CDTIME_T_TO_DOUBLE (rf->rf_effective_interval));
- }
- else
- {
- /* Success: Restore the interval, if it was changed. */
- rf->rf_effective_interval = rf->rf_interval;
- }
-
- /* update the ``next read due'' field */
- now = cdtime ();
-
- /* calculate the time spent in the read function */
- elapsed = (now - start);
-
- if (elapsed > rf->rf_effective_interval)
- WARNING ("plugin_read_thread: read-function of the `%s' plugin took %.3f "
- "seconds, which is above its read interval (%.3f seconds). You might "
- "want to adjust the `Interval' or `ReadThreads' settings.",
- rf->rf_name, CDTIME_T_TO_DOUBLE(elapsed),
- CDTIME_T_TO_DOUBLE(rf->rf_effective_interval));
-
- DEBUG ("plugin_read_thread: read-function of the `%s' plugin took "
- "%.6f seconds.",
- rf->rf_name, CDTIME_T_TO_DOUBLE(elapsed));
-
- DEBUG ("plugin_read_thread: Effective interval of the "
- "`%s' plugin is %.3f seconds.",
- rf->rf_name,
- CDTIME_T_TO_DOUBLE (rf->rf_effective_interval));
-
- /* Calculate the next (absolute) time at which this function
- * should be called. */
- rf->rf_next_read += rf->rf_effective_interval;
-
- /* Check, if `rf_next_read' is in the past. */
- if (rf->rf_next_read < now)
- {
- /* `rf_next_read' is in the past. Insert `now'
- * so this value doesn't trail off into the
- * past too much. */
- rf->rf_next_read = now;
- }
-
- DEBUG ("plugin_read_thread: Next read of the `%s' plugin at %.3f.",
- rf->rf_name,
- CDTIME_T_TO_DOUBLE (rf->rf_next_read));
-
- /* Re-insert this read function into the heap again. */
- c_heap_insert (read_heap, rf);
- } /* while (read_loop) */
-
- pthread_exit (NULL);
- return ((void *) 0);
+static void *plugin_read_thread(void __attribute__((unused)) * args) {
+ while (read_loop != 0) {
+ read_func_t *rf;
+ plugin_ctx_t old_ctx;
+ cdtime_t start;
+ cdtime_t now;
+ cdtime_t elapsed;
+ int status;
+ int rf_type;
+ int rc;
+
+ /* Get the read function that needs to be read next.
+ * We don't need to hold "read_lock" for the heap, but we need
+ * to call c_heap_get_root() and pthread_cond_wait() in the
+ * same protected block. */
+ pthread_mutex_lock(&read_lock);
+ rf = c_heap_get_root(read_heap);
+ if (rf == NULL) {
+ pthread_cond_wait(&read_cond, &read_lock);
+ pthread_mutex_unlock(&read_lock);
+ continue;
+ }
+ pthread_mutex_unlock(&read_lock);
+
+ if (rf->rf_interval == 0) {
+ /* this should not happen, because the interval is set
+ * for each plugin when loading it
+ * XXX: issue a warning? */
+ rf->rf_interval = plugin_get_interval();
+ rf->rf_effective_interval = rf->rf_interval;
+
+ rf->rf_next_read = cdtime();
+ }
+
+ /* sleep until this entry is due,
+ * using pthread_cond_timedwait */
+ pthread_mutex_lock(&read_lock);
+ /* In pthread_cond_timedwait, spurious wakeups are possible
+ * (and really happen, at least on NetBSD with > 1 CPU), thus
+ * we need to re-evaluate the condition every time
+ * pthread_cond_timedwait returns. */
+ rc = 0;
+ while ((read_loop != 0) && (cdtime() < rf->rf_next_read) && rc == 0) {
+ rc = pthread_cond_timedwait(&read_cond, &read_lock,
+ &CDTIME_T_TO_TIMESPEC(rf->rf_next_read));
+ }
+
+ /* Must hold `read_lock' when accessing `rf->rf_type'. */
+ rf_type = rf->rf_type;
+ pthread_mutex_unlock(&read_lock);
+
+ /* Check if we're supposed to stop.. This may have interrupted
+ * the sleep, too. */
+ if (read_loop == 0) {
+ /* Insert `rf' again, so it can be free'd correctly */
+ c_heap_insert(read_heap, rf);
+ break;
+ }
+
+ /* The entry has been marked for deletion. The linked list
+ * entry has already been removed by `plugin_unregister_read'.
+ * All we have to do here is free the `read_func_t' and
+ * continue. */
+ if (rf_type == RF_REMOVE) {
+ DEBUG("plugin_read_thread: Destroying the `%s' "
+ "callback.",
+ rf->rf_name);
+ sfree(rf->rf_name);
+ destroy_callback((callback_func_t *)rf);
+ rf = NULL;
+ continue;
+ }
+
+ DEBUG("plugin_read_thread: Handling `%s'.", rf->rf_name);
+
+ start = cdtime();
+
+ old_ctx = plugin_set_ctx(rf->rf_ctx);
+
+ if (rf_type == RF_SIMPLE) {
+ int (*callback)(void);
+
+ callback = rf->rf_callback;
+ status = (*callback)();
+ } else {
+ plugin_read_cb callback;
+
+ assert(rf_type == RF_COMPLEX);
+
+ callback = rf->rf_callback;
+ status = (*callback)(&rf->rf_udata);
+ }
+
+ plugin_set_ctx(old_ctx);
+
+ /* If the function signals failure, we will increase the
+ * intervals in which it will be called. */
+ if (status != 0) {
+ rf->rf_effective_interval *= 2;
+ if (rf->rf_effective_interval > max_read_interval)
+ rf->rf_effective_interval = max_read_interval;
+
+ NOTICE("read-function of plugin `%s' failed. "
+ "Will suspend it for %.3f seconds.",
+ rf->rf_name, CDTIME_T_TO_DOUBLE(rf->rf_effective_interval));
+ } else {
+ /* Success: Restore the interval, if it was changed. */
+ rf->rf_effective_interval = rf->rf_interval;
+ }
+
+ /* update the ``next read due'' field */
+ now = cdtime();
+
+ /* calculate the time spent in the read function */
+ elapsed = (now - start);
+
+ if (elapsed > rf->rf_effective_interval)
+ WARNING(
+ "plugin_read_thread: read-function of the `%s' plugin took %.3f "
+ "seconds, which is above its read interval (%.3f seconds). You might "
+ "want to adjust the `Interval' or `ReadThreads' settings.",
+ rf->rf_name, CDTIME_T_TO_DOUBLE(elapsed),
+ CDTIME_T_TO_DOUBLE(rf->rf_effective_interval));
+
+ DEBUG("plugin_read_thread: read-function of the `%s' plugin took "
+ "%.6f seconds.",
+ rf->rf_name, CDTIME_T_TO_DOUBLE(elapsed));
+
+ DEBUG("plugin_read_thread: Effective interval of the "
+ "`%s' plugin is %.3f seconds.",
+ rf->rf_name, CDTIME_T_TO_DOUBLE(rf->rf_effective_interval));
+
+ /* Calculate the next (absolute) time at which this function
+ * should be called. */
+ rf->rf_next_read += rf->rf_effective_interval;
+
+ /* Check, if `rf_next_read' is in the past. */
+ if (rf->rf_next_read < now) {
+ /* `rf_next_read' is in the past. Insert `now'
+ * so this value doesn't trail off into the
+ * past too much. */
+ rf->rf_next_read = now;
+ }
+
+ DEBUG("plugin_read_thread: Next read of the `%s' plugin at %.3f.",
+ rf->rf_name, CDTIME_T_TO_DOUBLE(rf->rf_next_read));
+
+ /* Re-insert this read function into the heap again. */
+ c_heap_insert(read_heap, rf);
+ } /* while (read_loop) */
+
+ pthread_exit(NULL);
+ return ((void *)0);
} /* void *plugin_read_thread */
#ifdef PTHREAD_MAX_NAMELEN_NP
-# define THREAD_NAME_MAX PTHREAD_MAX_NAMELEN_NP
+#define THREAD_NAME_MAX PTHREAD_MAX_NAMELEN_NP
#else
-# define THREAD_NAME_MAX 16
+#define THREAD_NAME_MAX 16
#endif
static void set_thread_name(pthread_t tid, char const *name) {
#if defined(HAVE_PTHREAD_SETNAME_NP) || defined(HAVE_PTHREAD_SET_NAME_NP)
- /* glibc limits the length of the name and fails if the passed string
- * is too long, so we truncate it here. */
- char n[THREAD_NAME_MAX];
- if (strlen (name) >= THREAD_NAME_MAX)
- WARNING("set_thread_name(\"%s\"): name too long", name);
- sstrncpy (n, name, sizeof(n));
+ /* glibc limits the length of the name and fails if the passed string
+ * is too long, so we truncate it here. */
+ char n[THREAD_NAME_MAX];
+ if (strlen(name) >= THREAD_NAME_MAX)
+ WARNING("set_thread_name(\"%s\"): name too long", name);
+ sstrncpy(n, name, sizeof(n));
#if defined(HAVE_PTHREAD_SETNAME_NP)
- int status = pthread_setname_np (tid, n);
- if (status != 0)
- {
- char errbuf[1024];
- ERROR ("set_thread_name(\"%s\"): %s", n,
- sstrerror (status, errbuf, sizeof(errbuf)));
- }
+ int status = pthread_setname_np(tid, n);
+ if (status != 0) {
+ char errbuf[1024];
+ ERROR("set_thread_name(\"%s\"): %s", n,
+ sstrerror(status, errbuf, sizeof(errbuf)));
+ }
#else /* if defined(HAVE_PTHREAD_SET_NAME_NP) */
- pthread_set_name_np (tid, n);
+ pthread_set_name_np(tid, n);
#endif
#endif
}
-static void start_read_threads (size_t num) /* {{{ */
+static void start_read_threads(size_t num) /* {{{ */
{
- if (read_threads != NULL)
- return;
-
- read_threads = (pthread_t *) calloc (num, sizeof (pthread_t));
- if (read_threads == NULL)
- {
- ERROR ("plugin: start_read_threads: calloc failed.");
- return;
- }
-
- read_threads_num = 0;
- for (size_t i = 0; i < num; i++)
- {
- int status = pthread_create (read_threads + read_threads_num,
- /* attr = */ NULL,
- plugin_read_thread,
- /* arg = */ NULL);
- if (status != 0)
- {
- char errbuf[1024];
- ERROR ("plugin: start_read_threads: pthread_create failed "
- "with status %i (%s).", status,
- sstrerror (status, errbuf, sizeof (errbuf)));
- return;
- }
-
- char name[THREAD_NAME_MAX];
- ssnprintf (name, sizeof (name), "reader#%zu", read_threads_num);
- set_thread_name (read_threads[read_threads_num], name);
-
- read_threads_num++;
- } /* for (i) */
+ if (read_threads != NULL)
+ return;
+
+ read_threads = (pthread_t *)calloc(num, sizeof(pthread_t));
+ if (read_threads == NULL) {
+ ERROR("plugin: start_read_threads: calloc failed.");
+ return;
+ }
+
+ read_threads_num = 0;
+ for (size_t i = 0; i < num; i++) {
+ int status = pthread_create(read_threads + read_threads_num,
+ /* attr = */ NULL, plugin_read_thread,
+ /* arg = */ NULL);
+ if (status != 0) {
+ char errbuf[1024];
+ ERROR("plugin: start_read_threads: pthread_create failed "
+ "with status %i (%s).",
+ status, sstrerror(status, errbuf, sizeof(errbuf)));
+ return;
+ }
+
+ char name[THREAD_NAME_MAX];
+ ssnprintf(name, sizeof(name), "reader#%zu", read_threads_num);
+ set_thread_name(read_threads[read_threads_num], name);
+
+ read_threads_num++;
+ } /* for (i) */
} /* }}} void start_read_threads */
-static void stop_read_threads (void)
-{
- if (read_threads == NULL)
- return;
-
- INFO ("collectd: Stopping %zu read threads.", read_threads_num);
-
- pthread_mutex_lock (&read_lock);
- read_loop = 0;
- DEBUG ("plugin: stop_read_threads: Signalling `read_cond'");
- pthread_cond_broadcast (&read_cond);
- pthread_mutex_unlock (&read_lock);
-
- for (size_t i = 0; i < read_threads_num; i++)
- {
- if (pthread_join (read_threads[i], NULL) != 0)
- {
- ERROR ("plugin: stop_read_threads: pthread_join failed.");
- }
- read_threads[i] = (pthread_t) 0;
- }
- sfree (read_threads);
- read_threads_num = 0;
+static void stop_read_threads(void) {
+ if (read_threads == NULL)
+ return;
+
+ INFO("collectd: Stopping %zu read threads.", read_threads_num);
+
+ pthread_mutex_lock(&read_lock);
+ read_loop = 0;
+ DEBUG("plugin: stop_read_threads: Signalling `read_cond'");
+ pthread_cond_broadcast(&read_cond);
+ pthread_mutex_unlock(&read_lock);
+
+ for (size_t i = 0; i < read_threads_num; i++) {
+ if (pthread_join(read_threads[i], NULL) != 0) {
+ ERROR("plugin: stop_read_threads: pthread_join failed.");
+ }
+ read_threads[i] = (pthread_t)0;
+ }
+ sfree(read_threads);
+ read_threads_num = 0;
} /* void stop_read_threads */
-static void plugin_value_list_free (value_list_t *vl) /* {{{ */
+static void plugin_value_list_free(value_list_t *vl) /* {{{ */
{
- if (vl == NULL)
- return;
+ if (vl == NULL)
+ return;
- meta_data_destroy (vl->meta);
- sfree (vl->values);
- sfree (vl);
+ meta_data_destroy(vl->meta);
+ sfree(vl->values);
+ sfree(vl);
} /* }}} void plugin_value_list_free */
-static value_list_t *plugin_value_list_clone (value_list_t const *vl_orig) /* {{{ */
+static value_list_t *
+plugin_value_list_clone(value_list_t const *vl_orig) /* {{{ */
{
- value_list_t *vl;
-
- if (vl_orig == NULL)
- return (NULL);
-
- vl = malloc (sizeof (*vl));
- if (vl == NULL)
- return (NULL);
- memcpy (vl, vl_orig, sizeof (*vl));
-
- if (vl->host[0] == 0)
- sstrncpy (vl->host, hostname_g, sizeof (vl->host));
-
- vl->values = calloc (vl_orig->values_len, sizeof (*vl->values));
- if (vl->values == NULL)
- {
- plugin_value_list_free (vl);
- return (NULL);
- }
- memcpy (vl->values, vl_orig->values,
- vl_orig->values_len * sizeof (*vl->values));
-
- vl->meta = meta_data_clone (vl->meta);
- if ((vl_orig->meta != NULL) && (vl->meta == NULL))
- {
- plugin_value_list_free (vl);
- return (NULL);
- }
-
- if (vl->time == 0)
- vl->time = cdtime ();
-
- /* Fill in the interval from the thread context, if it is zero. */
- if (vl->interval == 0)
- {
- plugin_ctx_t ctx = plugin_get_ctx ();
-
- if (ctx.interval != 0)
- vl->interval = ctx.interval;
- else
- {
- char name[6 * DATA_MAX_NAME_LEN];
- FORMAT_VL (name, sizeof (name), vl);
- ERROR ("plugin_value_list_clone: Unable to determine "
- "interval from context for "
- "value list \"%s\". "
- "This indicates a broken plugin. "
- "Please report this problem to the "
- "collectd mailing list or at "
- "<http://collectd.org/bugs/>.", name);
- vl->interval = cf_get_default_interval ();
- }
- }
-
- return (vl);
+ value_list_t *vl;
+
+ if (vl_orig == NULL)
+ return (NULL);
+
+ vl = malloc(sizeof(*vl));
+ if (vl == NULL)
+ return (NULL);
+ memcpy(vl, vl_orig, sizeof(*vl));
+
+ if (vl->host[0] == 0)
+ sstrncpy(vl->host, hostname_g, sizeof(vl->host));
+
+ vl->values = calloc(vl_orig->values_len, sizeof(*vl->values));
+ if (vl->values == NULL) {
+ plugin_value_list_free(vl);
+ return (NULL);
+ }
+ memcpy(vl->values, vl_orig->values,
+ vl_orig->values_len * sizeof(*vl->values));
+
+ vl->meta = meta_data_clone(vl->meta);
+ if ((vl_orig->meta != NULL) && (vl->meta == NULL)) {
+ plugin_value_list_free(vl);
+ return (NULL);
+ }
+
+ if (vl->time == 0)
+ vl->time = cdtime();
+
+ /* Fill in the interval from the thread context, if it is zero. */
+ if (vl->interval == 0) {
+ plugin_ctx_t ctx = plugin_get_ctx();
+
+ if (ctx.interval != 0)
+ vl->interval = ctx.interval;
+ else {
+ char name[6 * DATA_MAX_NAME_LEN];
+ FORMAT_VL(name, sizeof(name), vl);
+ ERROR("plugin_value_list_clone: Unable to determine "
+ "interval from context for "
+ "value list \"%s\". "
+ "This indicates a broken plugin. "
+ "Please report this problem to the "
+ "collectd mailing list or at "
+ "<http://collectd.org/bugs/>.",
+ name);
+ vl->interval = cf_get_default_interval();
+ }
+ }
+
+ return (vl);
} /* }}} value_list_t *plugin_value_list_clone */
-static int plugin_write_enqueue (value_list_t const *vl) /* {{{ */
+static int plugin_write_enqueue(value_list_t const *vl) /* {{{ */
{
- write_queue_t *q;
-
- q = malloc (sizeof (*q));
- if (q == NULL)
- return (ENOMEM);
- q->next = NULL;
-
- q->vl = plugin_value_list_clone (vl);
- if (q->vl == NULL)
- {
- sfree (q);
- return (ENOMEM);
- }
-
- /* Store context of caller (read plugin); otherwise, it would not be
- * available to the write plugins when actually dispatching the
- * value-list later on. */
- q->ctx = plugin_get_ctx ();
-
- pthread_mutex_lock (&write_lock);
-
- if (write_queue_tail == NULL)
- {
- write_queue_head = q;
- write_queue_tail = q;
- write_queue_length = 1;
- }
- else
- {
- write_queue_tail->next = q;
- write_queue_tail = q;
- write_queue_length += 1;
- }
-
- pthread_cond_signal (&write_cond);
- pthread_mutex_unlock (&write_lock);
-
- return (0);
+ write_queue_t *q;
+
+ q = malloc(sizeof(*q));
+ if (q == NULL)
+ return (ENOMEM);
+ q->next = NULL;
+
+ q->vl = plugin_value_list_clone(vl);
+ if (q->vl == NULL) {
+ sfree(q);
+ return (ENOMEM);
+ }
+
+ /* Store context of caller (read plugin); otherwise, it would not be
+ * available to the write plugins when actually dispatching the
+ * value-list later on. */
+ q->ctx = plugin_get_ctx();
+
+ pthread_mutex_lock(&write_lock);
+
+ if (write_queue_tail == NULL) {
+ write_queue_head = q;
+ write_queue_tail = q;
+ write_queue_length = 1;
+ } else {
+ write_queue_tail->next = q;
+ write_queue_tail = q;
+ write_queue_length += 1;
+ }
+
+ pthread_cond_signal(&write_cond);
+ pthread_mutex_unlock(&write_lock);
+
+ return (0);
} /* }}} int plugin_write_enqueue */
-static value_list_t *plugin_write_dequeue (void) /* {{{ */
+static value_list_t *plugin_write_dequeue(void) /* {{{ */
{
- write_queue_t *q;
- value_list_t *vl;
+ write_queue_t *q;
+ value_list_t *vl;
- pthread_mutex_lock (&write_lock);
+ pthread_mutex_lock(&write_lock);
- while (write_loop && (write_queue_head == NULL))
- pthread_cond_wait (&write_cond, &write_lock);
+ while (write_loop && (write_queue_head == NULL))
+ pthread_cond_wait(&write_cond, &write_lock);
- if (write_queue_head == NULL)
- {
- pthread_mutex_unlock (&write_lock);
- return (NULL);
- }
+ if (write_queue_head == NULL) {
+ pthread_mutex_unlock(&write_lock);
+ return (NULL);
+ }
- q = write_queue_head;
- write_queue_head = q->next;
- write_queue_length -= 1;
- if (write_queue_head == NULL) {
- write_queue_tail = NULL;
- assert(0 == write_queue_length);
- }
+ q = write_queue_head;
+ write_queue_head = q->next;
+ write_queue_length -= 1;
+ if (write_queue_head == NULL) {
+ write_queue_tail = NULL;
+ assert(0 == write_queue_length);
+ }
- pthread_mutex_unlock (&write_lock);
+ pthread_mutex_unlock(&write_lock);
- (void) plugin_set_ctx (q->ctx);
+ (void)plugin_set_ctx(q->ctx);
- vl = q->vl;
- sfree (q);
- return (vl);
+ vl = q->vl;
+ sfree(q);
+ return (vl);
} /* }}} value_list_t *plugin_write_dequeue */
-static void *plugin_write_thread (void __attribute__((unused)) *args) /* {{{ */
+static void *plugin_write_thread(void __attribute__((unused)) * args) /* {{{ */
{
- while (write_loop)
- {
- value_list_t *vl = plugin_write_dequeue ();
- if (vl == NULL)
- continue;
+ while (write_loop) {
+ value_list_t *vl = plugin_write_dequeue();
+ if (vl == NULL)
+ continue;
- plugin_dispatch_values_internal (vl);
+ plugin_dispatch_values_internal(vl);
- plugin_value_list_free (vl);
- }
+ plugin_value_list_free(vl);
+ }
- pthread_exit (NULL);
- return ((void *) 0);
+ pthread_exit(NULL);
+ return ((void *)0);
} /* }}} void *plugin_write_thread */
-static void start_write_threads (size_t num) /* {{{ */
+static void start_write_threads(size_t num) /* {{{ */
{
- if (write_threads != NULL)
- return;
-
- write_threads = (pthread_t *) calloc (num, sizeof (pthread_t));
- if (write_threads == NULL)
- {
- ERROR ("plugin: start_write_threads: calloc failed.");
- return;
- }
-
- write_threads_num = 0;
- for (size_t i = 0; i < num; i++)
- {
- int status = pthread_create (write_threads + write_threads_num,
- /* attr = */ NULL,
- plugin_write_thread,
- /* arg = */ NULL);
- if (status != 0)
- {
- char errbuf[1024];
- ERROR ("plugin: start_write_threads: pthread_create failed "
- "with status %i (%s).", status,
- sstrerror (status, errbuf, sizeof (errbuf)));
- return;
- }
-
- char name[THREAD_NAME_MAX];
- ssnprintf (name, sizeof (name), "writer#%zu", write_threads_num);
- set_thread_name (write_threads[write_threads_num], name);
-
- write_threads_num++;
- } /* for (i) */
+ if (write_threads != NULL)
+ return;
+
+ write_threads = (pthread_t *)calloc(num, sizeof(pthread_t));
+ if (write_threads == NULL) {
+ ERROR("plugin: start_write_threads: calloc failed.");
+ return;
+ }
+
+ write_threads_num = 0;
+ for (size_t i = 0; i < num; i++) {
+ int status = pthread_create(write_threads + write_threads_num,
+ /* attr = */ NULL, plugin_write_thread,
+ /* arg = */ NULL);
+ if (status != 0) {
+ char errbuf[1024];
+ ERROR("plugin: start_write_threads: pthread_create failed "
+ "with status %i (%s).",
+ status, sstrerror(status, errbuf, sizeof(errbuf)));
+ return;
+ }
+
+ char name[THREAD_NAME_MAX];
+ ssnprintf(name, sizeof(name), "writer#%zu", write_threads_num);
+ set_thread_name(write_threads[write_threads_num], name);
+
+ write_threads_num++;
+ } /* for (i) */
} /* }}} void start_write_threads */
-static void stop_write_threads (void) /* {{{ */
+static void stop_write_threads(void) /* {{{ */
{
- write_queue_t *q;
- size_t i;
-
- if (write_threads == NULL)
- return;
-
- INFO ("collectd: Stopping %zu write threads.", write_threads_num);
-
- pthread_mutex_lock (&write_lock);
- write_loop = 0;
- DEBUG ("plugin: stop_write_threads: Signalling `write_cond'");
- pthread_cond_broadcast (&write_cond);
- pthread_mutex_unlock (&write_lock);
-
- for (i = 0; i < write_threads_num; i++)
- {
- if (pthread_join (write_threads[i], NULL) != 0)
- {
- ERROR ("plugin: stop_write_threads: pthread_join failed.");
- }
- write_threads[i] = (pthread_t) 0;
- }
- sfree (write_threads);
- write_threads_num = 0;
-
- pthread_mutex_lock (&write_lock);
- i = 0;
- for (q = write_queue_head; q != NULL; )
- {
- write_queue_t *q1 = q;
- plugin_value_list_free (q->vl);
- q = q->next;
- sfree (q1);
- i++;
- }
- write_queue_head = NULL;
- write_queue_tail = NULL;
- write_queue_length = 0;
- pthread_mutex_unlock (&write_lock);
-
- if (i > 0)
- {
- WARNING ("plugin: %zu value list%s left after shutting down "
- "the write threads.",
- i, (i == 1) ? " was" : "s were");
- }
+ write_queue_t *q;
+ size_t i;
+
+ if (write_threads == NULL)
+ return;
+
+ INFO("collectd: Stopping %zu write threads.", write_threads_num);
+
+ pthread_mutex_lock(&write_lock);
+ write_loop = 0;
+ DEBUG("plugin: stop_write_threads: Signalling `write_cond'");
+ pthread_cond_broadcast(&write_cond);
+ pthread_mutex_unlock(&write_lock);
+
+ for (i = 0; i < write_threads_num; i++) {
+ if (pthread_join(write_threads[i], NULL) != 0) {
+ ERROR("plugin: stop_write_threads: pthread_join failed.");
+ }
+ write_threads[i] = (pthread_t)0;
+ }
+ sfree(write_threads);
+ write_threads_num = 0;
+
+ pthread_mutex_lock(&write_lock);
+ i = 0;
+ for (q = write_queue_head; q != NULL;) {
+ write_queue_t *q1 = q;
+ plugin_value_list_free(q->vl);
+ q = q->next;
+ sfree(q1);
+ i++;
+ }
+ write_queue_head = NULL;
+ write_queue_tail = NULL;
+ write_queue_length = 0;
+ pthread_mutex_unlock(&write_lock);
+
+ if (i > 0) {
+ WARNING("plugin: %zu value list%s left after shutting down "
+ "the write threads.",
+ i, (i == 1) ? " was" : "s were");
+ }
} /* }}} void stop_write_threads */
/*
* Public functions
*/
-void plugin_set_dir (const char *dir)
-{
- sfree (plugindir);
+void plugin_set_dir(const char *dir) {
+ sfree(plugindir);
- if (dir == NULL)
- {
- plugindir = NULL;
- return;
- }
+ if (dir == NULL) {
+ plugindir = NULL;
+ return;
+ }
- plugindir = strdup (dir);
- if (plugindir == NULL)
- ERROR ("plugin_set_dir: strdup(\"%s\") failed", dir);
+ plugindir = strdup(dir);
+ if (plugindir == NULL)
+ ERROR("plugin_set_dir: strdup(\"%s\") failed", dir);
}
-static _Bool plugin_is_loaded (char const *name)
-{
- int status;
+static _Bool plugin_is_loaded(char const *name) {
+ int status;
- if (plugins_loaded == NULL)
- plugins_loaded = c_avl_create ((int (*) (const void *, const void *)) strcasecmp);
- assert (plugins_loaded != NULL);
+ if (plugins_loaded == NULL)
+ plugins_loaded =
+ c_avl_create((int (*)(const void *, const void *))strcasecmp);
+ assert(plugins_loaded != NULL);
- status = c_avl_get (plugins_loaded, name, /* ret_value = */ NULL);
- return (status == 0);
+ status = c_avl_get(plugins_loaded, name, /* ret_value = */ NULL);
+ return (status == 0);
}
-static int plugin_mark_loaded (char const *name)
-{
- char *name_copy;
- int status;
+static int plugin_mark_loaded(char const *name) {
+ char *name_copy;
+ int status;
- name_copy = strdup (name);
- if (name_copy == NULL)
- return (ENOMEM);
+ name_copy = strdup(name);
+ if (name_copy == NULL)
+ return (ENOMEM);
- status = c_avl_insert (plugins_loaded,
- /* key = */ name_copy, /* value = */ NULL);
- return (status);
+ status = c_avl_insert(plugins_loaded,
+ /* key = */ name_copy, /* value = */ NULL);
+ return (status);
}
-static void plugin_free_loaded (void)
-{
- void *key;
- void *value;
+static void plugin_free_loaded(void) {
+ void *key;
+ void *value;
- if (plugins_loaded == NULL)
- return;
+ if (plugins_loaded == NULL)
+ return;
- while (c_avl_pick (plugins_loaded, &key, &value) == 0)
- {
- sfree (key);
- assert (value == NULL);
- }
+ while (c_avl_pick(plugins_loaded, &key, &value) == 0) {
+ sfree(key);
+ assert(value == NULL);
+ }
- c_avl_destroy (plugins_loaded);
- plugins_loaded = NULL;
+ c_avl_destroy(plugins_loaded);
+ plugins_loaded = NULL;
}
#define BUFSIZE 512
-int plugin_load (char const *plugin_name, uint32_t flags)
-{
- DIR *dh;
- const char *dir;
- char filename[BUFSIZE] = "";
- char typename[BUFSIZE];
- int ret;
- struct stat statbuf;
- struct dirent *de;
- int status;
-
- if (plugin_name == NULL)
- return (EINVAL);
-
- /* Check if plugin is already loaded and don't do anything in this
- * case. */
- if (plugin_is_loaded (plugin_name))
- return (0);
-
- dir = plugin_get_dir ();
- ret = 1;
-
- /*
- * XXX: Magic at work:
- *
- * Some of the language bindings, for example the Python and Perl
- * plugins, need to be able to export symbols to the scripts they run.
- * For this to happen, the "Globals" flag needs to be set.
- * Unfortunately, this technical detail is hard to explain to the
- * average user and she shouldn't have to worry about this, ideally.
- * So in order to save everyone's sanity use a different default for a
- * handful of special plugins. --octo
- */
- if ((strcasecmp ("perl", plugin_name) == 0)
- || (strcasecmp ("python", plugin_name) == 0))
- flags |= PLUGIN_FLAGS_GLOBAL;
-
- /* `cpu' should not match `cpufreq'. To solve this we add `.so' to the
- * type when matching the filename */
- status = ssnprintf (typename, sizeof (typename), "%s.so", plugin_name);
- if ((status < 0) || ((size_t) status >= sizeof (typename)))
- {
- WARNING ("plugin_load: Filename too long: \"%s.so\"", plugin_name);
- return (-1);
- }
-
- if ((dh = opendir (dir)) == NULL)
- {
- char errbuf[1024];
- ERROR ("plugin_load: opendir (%s) failed: %s", dir,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- while ((de = readdir (dh)) != NULL)
- {
- if (strcasecmp (de->d_name, typename))
- continue;
-
- status = ssnprintf (filename, sizeof (filename),
- "%s/%s", dir, de->d_name);
- if ((status < 0) || ((size_t) status >= sizeof (filename)))
- {
- WARNING ("plugin_load: Filename too long: \"%s/%s\"",
- dir, de->d_name);
- continue;
- }
-
- if (lstat (filename, &statbuf) == -1)
- {
- char errbuf[1024];
- WARNING ("plugin_load: stat (\"%s\") failed: %s",
- filename,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- continue;
- }
- else if (!S_ISREG (statbuf.st_mode))
- {
- /* don't follow symlinks */
- WARNING ("plugin_load: %s is not a regular file.",
- filename);
- continue;
- }
-
- status = plugin_load_file (filename, flags);
- if (status == 0)
- {
- /* success */
- plugin_mark_loaded (plugin_name);
- ret = 0;
- INFO ("plugin_load: plugin \"%s\" successfully loaded.", plugin_name);
- break;
- }
- else
- {
- ERROR ("plugin_load: Load plugin \"%s\" failed with "
- "status %i.", plugin_name, status);
- }
- }
-
- closedir (dh);
-
- if (filename[0] == 0)
- ERROR ("plugin_load: Could not find plugin \"%s\" in %s",
- plugin_name, dir);
-
- return (ret);
+int plugin_load(char const *plugin_name, uint32_t flags) {
+ DIR *dh;
+ const char *dir;
+ char filename[BUFSIZE] = "";
+ char typename[BUFSIZE];
+ int ret;
+ struct stat statbuf;
+ struct dirent *de;
+ int status;
+
+ if (plugin_name == NULL)
+ return (EINVAL);
+
+ /* Check if plugin is already loaded and don't do anything in this
+ * case. */
+ if (plugin_is_loaded(plugin_name))
+ return (0);
+
+ dir = plugin_get_dir();
+ ret = 1;
+
+ /*
+ * XXX: Magic at work:
+ *
+ * Some of the language bindings, for example the Python and Perl
+ * plugins, need to be able to export symbols to the scripts they run.
+ * For this to happen, the "Globals" flag needs to be set.
+ * Unfortunately, this technical detail is hard to explain to the
+ * average user and she shouldn't have to worry about this, ideally.
+ * So in order to save everyone's sanity use a different default for a
+ * handful of special plugins. --octo
+ */
+ if ((strcasecmp("perl", plugin_name) == 0) ||
+ (strcasecmp("python", plugin_name) == 0))
+ flags |= PLUGIN_FLAGS_GLOBAL;
+
+ /* `cpu' should not match `cpufreq'. To solve this we add `.so' to the
+ * type when matching the filename */
+ status = ssnprintf(typename, sizeof(typename), "%s.so", plugin_name);
+ if ((status < 0) || ((size_t)status >= sizeof(typename))) {
+ WARNING("plugin_load: Filename too long: \"%s.so\"", plugin_name);
+ return (-1);
+ }
+
+ if ((dh = opendir(dir)) == NULL) {
+ char errbuf[1024];
+ ERROR("plugin_load: opendir (%s) failed: %s", dir,
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ return (-1);
+ }
+
+ while ((de = readdir(dh)) != NULL) {
+ if (strcasecmp(de->d_name, typename))
+ continue;
+
+ status = ssnprintf(filename, sizeof(filename), "%s/%s", dir, de->d_name);
+ if ((status < 0) || ((size_t)status >= sizeof(filename))) {
+ WARNING("plugin_load: Filename too long: \"%s/%s\"", dir, de->d_name);
+ continue;
+ }
+
+ if (lstat(filename, &statbuf) == -1) {
+ char errbuf[1024];
+ WARNING("plugin_load: stat (\"%s\") failed: %s", filename,
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ continue;
+ } else if (!S_ISREG(statbuf.st_mode)) {
+ /* don't follow symlinks */
+ WARNING("plugin_load: %s is not a regular file.", filename);
+ continue;
+ }
+
+ status = plugin_load_file(filename, flags);
+ if (status == 0) {
+ /* success */
+ plugin_mark_loaded(plugin_name);
+ ret = 0;
+ INFO("plugin_load: plugin \"%s\" successfully loaded.", plugin_name);
+ break;
+ } else {
+ ERROR("plugin_load: Load plugin \"%s\" failed with "
+ "status %i.",
+ plugin_name, status);
+ }
+ }
+
+ closedir(dh);
+
+ if (filename[0] == 0)
+ ERROR("plugin_load: Could not find plugin \"%s\" in %s", plugin_name, dir);
+
+ return (ret);
}
/*
* The `register_*' functions follow
*/
-int plugin_register_config (const char *name,
- int (*callback) (const char *key, const char *val),
- const char **keys, int keys_num)
-{
- cf_register (name, callback, keys, keys_num);
- return (0);
+int plugin_register_config(const char *name,
+ int (*callback)(const char *key, const char *val),
+ const char **keys, int keys_num) {
+ cf_register(name, callback, keys, keys_num);
+ return (0);
} /* int plugin_register_config */
-int plugin_register_complex_config (const char *type,
- int (*callback) (oconfig_item_t *))
-{
- return (cf_register_complex (type, callback));
+int plugin_register_complex_config(const char *type,
+ int (*callback)(oconfig_item_t *)) {
+ return (cf_register_complex(type, callback));
} /* int plugin_register_complex_config */
-int plugin_register_init (const char *name,
- int (*callback) (void))
-{
- return (create_register_callback (&list_init, name, (void *) callback,
- /* user_data = */ NULL));
+int plugin_register_init(const char *name, int (*callback)(void)) {
+ return (create_register_callback(&list_init, name, (void *)callback,
+ /* user_data = */ NULL));
} /* plugin_register_init */
-static int plugin_compare_read_func (const void *arg0, const void *arg1)
-{
- const read_func_t *rf0;
- const read_func_t *rf1;
-
- rf0 = arg0;
- rf1 = arg1;
-
- if (rf0->rf_next_read < rf1->rf_next_read)
- return (-1);
- else if (rf0->rf_next_read > rf1->rf_next_read)
- return (1);
- else
- return (0);
+static int plugin_compare_read_func(const void *arg0, const void *arg1) {
+ const read_func_t *rf0;
+ const read_func_t *rf1;
+
+ rf0 = arg0;
+ rf1 = arg1;
+
+ if (rf0->rf_next_read < rf1->rf_next_read)
+ return (-1);
+ else if (rf0->rf_next_read > rf1->rf_next_read)
+ return (1);
+ else
+ return (0);
} /* int plugin_compare_read_func */
/* Add a read function to both, the heap and a linked list. The linked list if
* used to look-up read functions, especially for the remove function. The heap
* is used to determine which plugin to read next. */
-static int plugin_insert_read (read_func_t *rf)
-{
- int status;
- llentry_t *le;
-
- rf->rf_next_read = cdtime ();
- rf->rf_effective_interval = rf->rf_interval;
-
- pthread_mutex_lock (&read_lock);
-
- if (read_list == NULL)
- {
- read_list = llist_create ();
- if (read_list == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- ERROR ("plugin_insert_read: read_list failed.");
- return (-1);
- }
- }
-
- if (read_heap == NULL)
- {
- read_heap = c_heap_create (plugin_compare_read_func);
- if (read_heap == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- ERROR ("plugin_insert_read: c_heap_create failed.");
- return (-1);
- }
- }
-
- le = llist_search (read_list, rf->rf_name);
- if (le != NULL)
- {
- pthread_mutex_unlock (&read_lock);
- WARNING ("The read function \"%s\" is already registered. "
- "Check for duplicate \"LoadPlugin\" lines "
- "in your configuration!",
- rf->rf_name);
- return (EINVAL);
- }
-
- le = llentry_create (rf->rf_name, rf);
- if (le == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- ERROR ("plugin_insert_read: llentry_create failed.");
- return (-1);
- }
-
- status = c_heap_insert (read_heap, rf);
- if (status != 0)
- {
- pthread_mutex_unlock (&read_lock);
- ERROR ("plugin_insert_read: c_heap_insert failed.");
- llentry_destroy (le);
- return (-1);
- }
-
- /* This does not fail. */
- llist_append (read_list, le);
-
- /* Wake up all the read threads. */
- pthread_cond_broadcast (&read_cond);
- pthread_mutex_unlock (&read_lock);
- return (0);
+static int plugin_insert_read(read_func_t *rf) {
+ int status;
+ llentry_t *le;
+
+ rf->rf_next_read = cdtime();
+ rf->rf_effective_interval = rf->rf_interval;
+
+ pthread_mutex_lock(&read_lock);
+
+ if (read_list == NULL) {
+ read_list = llist_create();
+ if (read_list == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ ERROR("plugin_insert_read: read_list failed.");
+ return (-1);
+ }
+ }
+
+ if (read_heap == NULL) {
+ read_heap = c_heap_create(plugin_compare_read_func);
+ if (read_heap == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ ERROR("plugin_insert_read: c_heap_create failed.");
+ return (-1);
+ }
+ }
+
+ le = llist_search(read_list, rf->rf_name);
+ if (le != NULL) {
+ pthread_mutex_unlock(&read_lock);
+ WARNING("The read function \"%s\" is already registered. "
+ "Check for duplicate \"LoadPlugin\" lines "
+ "in your configuration!",
+ rf->rf_name);
+ return (EINVAL);
+ }
+
+ le = llentry_create(rf->rf_name, rf);
+ if (le == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ ERROR("plugin_insert_read: llentry_create failed.");
+ return (-1);
+ }
+
+ status = c_heap_insert(read_heap, rf);
+ if (status != 0) {
+ pthread_mutex_unlock(&read_lock);
+ ERROR("plugin_insert_read: c_heap_insert failed.");
+ llentry_destroy(le);
+ return (-1);
+ }
+
+ /* This does not fail. */
+ llist_append(read_list, le);
+
+ /* Wake up all the read threads. */
+ pthread_cond_broadcast(&read_cond);
+ pthread_mutex_unlock(&read_lock);
+ return (0);
} /* int plugin_insert_read */
-int plugin_register_read (const char *name,
- int (*callback) (void))
-{
- read_func_t *rf;
- int status;
-
- rf = calloc (1, sizeof (*rf));
- if (rf == NULL)
- {
- ERROR ("plugin_register_read: calloc failed.");
- return (ENOMEM);
- }
-
- rf->rf_callback = (void *) callback;
- rf->rf_udata.data = NULL;
- rf->rf_udata.free_func = NULL;
- rf->rf_ctx = plugin_get_ctx ();
- rf->rf_group[0] = '\0';
- rf->rf_name = strdup (name);
- rf->rf_type = RF_SIMPLE;
- rf->rf_interval = plugin_get_interval ();
-
- status = plugin_insert_read (rf);
- if (status != 0) {
- sfree (rf->rf_name);
- sfree (rf);
- }
-
- return (status);
+int plugin_register_read(const char *name, int (*callback)(void)) {
+ read_func_t *rf;
+ int status;
+
+ rf = calloc(1, sizeof(*rf));
+ if (rf == NULL) {
+ ERROR("plugin_register_read: calloc failed.");
+ return (ENOMEM);
+ }
+
+ rf->rf_callback = (void *)callback;
+ rf->rf_udata.data = NULL;
+ rf->rf_udata.free_func = NULL;
+ rf->rf_ctx = plugin_get_ctx();
+ rf->rf_group[0] = '\0';
+ rf->rf_name = strdup(name);
+ rf->rf_type = RF_SIMPLE;
+ rf->rf_interval = plugin_get_interval();
+
+ status = plugin_insert_read(rf);
+ if (status != 0) {
+ sfree(rf->rf_name);
+ sfree(rf);
+ }
+
+ return (status);
} /* int plugin_register_read */
-int plugin_register_complex_read (const char *group, const char *name,
- plugin_read_cb callback,
- cdtime_t interval,
- user_data_t const *user_data)
-{
- read_func_t *rf;
- int status;
-
- rf = calloc (1,sizeof (*rf));
- if (rf == NULL)
- {
- ERROR ("plugin_register_complex_read: calloc failed.");
- return (ENOMEM);
- }
-
- rf->rf_callback = (void *) callback;
- if (group != NULL)
- sstrncpy (rf->rf_group, group, sizeof (rf->rf_group));
- else
- rf->rf_group[0] = '\0';
- rf->rf_name = strdup (name);
- rf->rf_type = RF_COMPLEX;
- rf->rf_interval = (interval != 0) ? interval : plugin_get_interval ();
-
- /* Set user data */
- if (user_data == NULL)
- {
- rf->rf_udata.data = NULL;
- rf->rf_udata.free_func = NULL;
- }
- else
- {
- rf->rf_udata = *user_data;
- }
-
- rf->rf_ctx = plugin_get_ctx ();
-
- status = plugin_insert_read (rf);
- if (status != 0) {
- sfree (rf->rf_name);
- sfree (rf);
- }
-
- return (status);
+int plugin_register_complex_read(const char *group, const char *name,
+ plugin_read_cb callback, cdtime_t interval,
+ user_data_t const *user_data) {
+ read_func_t *rf;
+ int status;
+
+ rf = calloc(1, sizeof(*rf));
+ if (rf == NULL) {
+ ERROR("plugin_register_complex_read: calloc failed.");
+ return (ENOMEM);
+ }
+
+ rf->rf_callback = (void *)callback;
+ if (group != NULL)
+ sstrncpy(rf->rf_group, group, sizeof(rf->rf_group));
+ else
+ rf->rf_group[0] = '\0';
+ rf->rf_name = strdup(name);
+ rf->rf_type = RF_COMPLEX;
+ rf->rf_interval = (interval != 0) ? interval : plugin_get_interval();
+
+ /* Set user data */
+ if (user_data == NULL) {
+ rf->rf_udata.data = NULL;
+ rf->rf_udata.free_func = NULL;
+ } else {
+ rf->rf_udata = *user_data;
+ }
+
+ rf->rf_ctx = plugin_get_ctx();
+
+ status = plugin_insert_read(rf);
+ if (status != 0) {
+ sfree(rf->rf_name);
+ sfree(rf);
+ }
+
+ return (status);
} /* int plugin_register_complex_read */
-int plugin_register_write (const char *name,
- plugin_write_cb callback, user_data_t const *ud)
-{
- return (create_register_callback (&list_write, name,
- (void *) callback, ud));
+int plugin_register_write(const char *name, plugin_write_cb callback,
+ user_data_t const *ud) {
+ return (create_register_callback(&list_write, name, (void *)callback, ud));
} /* int plugin_register_write */
-static int plugin_flush_timeout_callback (user_data_t *ud)
-{
- flush_callback_t *cb = ud->data;
+static int plugin_flush_timeout_callback(user_data_t *ud) {
+ flush_callback_t *cb = ud->data;
- return plugin_flush (cb->name, cb->timeout, /* identifier = */ NULL);
+ return plugin_flush(cb->name, cb->timeout, /* identifier = */ NULL);
} /* static int plugin_flush_callback */
-static void plugin_flush_timeout_callback_free (void *data)
-{
- flush_callback_t *cb = data;
+static void plugin_flush_timeout_callback_free(void *data) {
+ flush_callback_t *cb = data;
- if (cb == NULL) return;
+ if (cb == NULL)
+ return;
- sfree (cb->name);
- sfree (cb);
+ sfree(cb->name);
+ sfree(cb);
} /* static void plugin_flush_callback_free */
-static char *plugin_flush_callback_name (const char *name)
-{
- const char *flush_prefix = "flush/";
- size_t prefix_size;
- char *flush_name;
- size_t name_size;
+static char *plugin_flush_callback_name(const char *name) {
+ const char *flush_prefix = "flush/";
+ size_t prefix_size;
+ char *flush_name;
+ size_t name_size;
- prefix_size = strlen(flush_prefix);
- name_size = strlen(name);
+ prefix_size = strlen(flush_prefix);
+ name_size = strlen(name);
- flush_name = malloc (name_size + prefix_size + 1);
- if (flush_name == NULL)
- {
- ERROR ("plugin_flush_callback_name: malloc failed.");
- return (NULL);
- }
+ flush_name = malloc(name_size + prefix_size + 1);
+ if (flush_name == NULL) {
+ ERROR("plugin_flush_callback_name: malloc failed.");
+ return (NULL);
+ }
- sstrncpy (flush_name, flush_prefix, prefix_size + 1);
- sstrncpy (flush_name + prefix_size, name, name_size + 1);
+ sstrncpy(flush_name, flush_prefix, prefix_size + 1);
+ sstrncpy(flush_name + prefix_size, name, name_size + 1);
- return flush_name;
+ return flush_name;
} /* static char *plugin_flush_callback_name */
-int plugin_register_flush (const char *name,
- plugin_flush_cb callback, user_data_t const *ud)
-{
- int status;
- plugin_ctx_t ctx = plugin_get_ctx ();
-
- status = create_register_callback (&list_flush, name,
- (void *) callback, ud);
- if (status != 0)
- return status;
-
- if (ctx.flush_interval != 0)
- {
- char *flush_name;
- flush_callback_t *cb;
-
- flush_name = plugin_flush_callback_name (name);
- if (flush_name == NULL)
- return (-1);
-
- cb = malloc(sizeof (*cb));
- if (cb == NULL)
- {
- ERROR ("plugin_register_flush: malloc failed.");
- sfree (flush_name);
- return (-1);
- }
-
- cb->name = strdup (name);
- if (cb->name == NULL)
- {
- ERROR ("plugin_register_flush: strdup failed.");
- sfree (cb);
- sfree (flush_name);
- return (-1);
- }
- cb->timeout = ctx.flush_timeout;
-
- status = plugin_register_complex_read (
- /* group = */ "flush",
- /* name = */ flush_name,
- /* callback = */ plugin_flush_timeout_callback,
- /* interval = */ ctx.flush_interval,
- /* user data = */ &(user_data_t) {
- .data = cb,
- .free_func = plugin_flush_timeout_callback_free,
- });
-
- sfree (flush_name);
- if (status != 0)
- {
- sfree (cb->name);
- sfree (cb);
- return status;
- }
- }
-
- return 0;
+int plugin_register_flush(const char *name, plugin_flush_cb callback,
+ user_data_t const *ud) {
+ int status;
+ plugin_ctx_t ctx = plugin_get_ctx();
+
+ status = create_register_callback(&list_flush, name, (void *)callback, ud);
+ if (status != 0)
+ return status;
+
+ if (ctx.flush_interval != 0) {
+ char *flush_name;
+ flush_callback_t *cb;
+
+ flush_name = plugin_flush_callback_name(name);
+ if (flush_name == NULL)
+ return (-1);
+
+ cb = malloc(sizeof(*cb));
+ if (cb == NULL) {
+ ERROR("plugin_register_flush: malloc failed.");
+ sfree(flush_name);
+ return (-1);
+ }
+
+ cb->name = strdup(name);
+ if (cb->name == NULL) {
+ ERROR("plugin_register_flush: strdup failed.");
+ sfree(cb);
+ sfree(flush_name);
+ return (-1);
+ }
+ cb->timeout = ctx.flush_timeout;
+
+ status = plugin_register_complex_read(
+ /* group = */ "flush",
+ /* name = */ flush_name,
+ /* callback = */ plugin_flush_timeout_callback,
+ /* interval = */ ctx.flush_interval,
+ /* user data = */ &(user_data_t){
+ .data = cb, .free_func = plugin_flush_timeout_callback_free,
+ });
+
+ sfree(flush_name);
+ if (status != 0) {
+ sfree(cb->name);
+ sfree(cb);
+ return status;
+ }
+ }
+
+ return 0;
} /* int plugin_register_flush */
-int plugin_register_missing (const char *name,
- plugin_missing_cb callback, user_data_t const *ud)
-{
- return (create_register_callback (&list_missing, name,
- (void *) callback, ud));
+int plugin_register_missing(const char *name, plugin_missing_cb callback,
+ user_data_t const *ud) {
+ return (create_register_callback(&list_missing, name, (void *)callback, ud));
} /* int plugin_register_missing */
-int plugin_register_shutdown (const char *name,
- int (*callback) (void))
-{
- return (create_register_callback (&list_shutdown, name,
- (void *) callback, /* user_data = */ NULL));
+int plugin_register_shutdown(const char *name, int (*callback)(void)) {
+ return (create_register_callback(&list_shutdown, name, (void *)callback,
+ /* user_data = */ NULL));
} /* int plugin_register_shutdown */
-static void plugin_free_data_sets (void)
-{
- void *key;
- void *value;
+static void plugin_free_data_sets(void) {
+ void *key;
+ void *value;
- if (data_sets == NULL)
- return;
+ if (data_sets == NULL)
+ return;
- while (c_avl_pick (data_sets, &key, &value) == 0)
- {
- data_set_t *ds = value;
- /* key is a pointer to ds->type */
+ while (c_avl_pick(data_sets, &key, &value) == 0) {
+ data_set_t *ds = value;
+ /* key is a pointer to ds->type */
- sfree (ds->ds);
- sfree (ds);
- }
+ sfree(ds->ds);
+ sfree(ds);
+ }
- c_avl_destroy (data_sets);
- data_sets = NULL;
+ c_avl_destroy(data_sets);
+ data_sets = NULL;
} /* void plugin_free_data_sets */
-int plugin_register_data_set (const data_set_t *ds)
-{
- data_set_t *ds_copy;
-
- if ((data_sets != NULL)
- && (c_avl_get (data_sets, ds->type, NULL) == 0))
- {
- NOTICE ("Replacing DS `%s' with another version.", ds->type);
- plugin_unregister_data_set (ds->type);
- }
- else if (data_sets == NULL)
- {
- data_sets = c_avl_create ((int (*) (const void *, const void *)) strcmp);
- if (data_sets == NULL)
- return (-1);
- }
-
- ds_copy = malloc (sizeof (*ds_copy));
- if (ds_copy == NULL)
- return (-1);
- memcpy(ds_copy, ds, sizeof (data_set_t));
-
- ds_copy->ds = malloc (sizeof (*ds_copy->ds)
- * ds->ds_num);
- if (ds_copy->ds == NULL)
- {
- sfree (ds_copy);
- return (-1);
- }
-
- for (size_t i = 0; i < ds->ds_num; i++)
- memcpy (ds_copy->ds + i, ds->ds + i, sizeof (data_source_t));
-
- return (c_avl_insert (data_sets, (void *) ds_copy->type, (void *) ds_copy));
+int plugin_register_data_set(const data_set_t *ds) {
+ data_set_t *ds_copy;
+
+ if ((data_sets != NULL) && (c_avl_get(data_sets, ds->type, NULL) == 0)) {
+ NOTICE("Replacing DS `%s' with another version.", ds->type);
+ plugin_unregister_data_set(ds->type);
+ } else if (data_sets == NULL) {
+ data_sets = c_avl_create((int (*)(const void *, const void *))strcmp);
+ if (data_sets == NULL)
+ return (-1);
+ }
+
+ ds_copy = malloc(sizeof(*ds_copy));
+ if (ds_copy == NULL)
+ return (-1);
+ memcpy(ds_copy, ds, sizeof(data_set_t));
+
+ ds_copy->ds = malloc(sizeof(*ds_copy->ds) * ds->ds_num);
+ if (ds_copy->ds == NULL) {
+ sfree(ds_copy);
+ return (-1);
+ }
+
+ for (size_t i = 0; i < ds->ds_num; i++)
+ memcpy(ds_copy->ds + i, ds->ds + i, sizeof(data_source_t));
+
+ return (c_avl_insert(data_sets, (void *)ds_copy->type, (void *)ds_copy));
} /* int plugin_register_data_set */
-int plugin_register_log (const char *name,
- plugin_log_cb callback, user_data_t const *ud)
-{
- return (create_register_callback (&list_log, name,
- (void *) callback, ud));
+int plugin_register_log(const char *name, plugin_log_cb callback,
+ user_data_t const *ud) {
+ return (create_register_callback(&list_log, name, (void *)callback, ud));
} /* int plugin_register_log */
-int plugin_register_notification (const char *name,
- plugin_notification_cb callback, user_data_t const *ud)
-{
- return (create_register_callback (&list_notification, name,
- (void *) callback, ud));
+int plugin_register_notification(const char *name,
+ plugin_notification_cb callback,
+ user_data_t const *ud) {
+ return (
+ create_register_callback(&list_notification, name, (void *)callback, ud));
} /* int plugin_register_log */
-int plugin_unregister_config (const char *name)
-{
- cf_unregister (name);
- return (0);
+int plugin_unregister_config(const char *name) {
+ cf_unregister(name);
+ return (0);
} /* int plugin_unregister_config */
-int plugin_unregister_complex_config (const char *name)
-{
- cf_unregister_complex (name);
- return (0);
+int plugin_unregister_complex_config(const char *name) {
+ cf_unregister_complex(name);
+ return (0);
} /* int plugin_unregister_complex_config */
-int plugin_unregister_init (const char *name)
-{
- return (plugin_unregister (list_init, name));
+int plugin_unregister_init(const char *name) {
+ return (plugin_unregister(list_init, name));
}
-int plugin_unregister_read (const char *name) /* {{{ */
+int plugin_unregister_read(const char *name) /* {{{ */
{
- llentry_t *le;
- read_func_t *rf;
+ llentry_t *le;
+ read_func_t *rf;
- if (name == NULL)
- return (-ENOENT);
+ if (name == NULL)
+ return (-ENOENT);
- pthread_mutex_lock (&read_lock);
+ pthread_mutex_lock(&read_lock);
- if (read_list == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- return (-ENOENT);
- }
+ if (read_list == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ return (-ENOENT);
+ }
- le = llist_search (read_list, name);
- if (le == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- WARNING ("plugin_unregister_read: No such read function: %s",
- name);
- return (-ENOENT);
- }
+ le = llist_search(read_list, name);
+ if (le == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ WARNING("plugin_unregister_read: No such read function: %s", name);
+ return (-ENOENT);
+ }
- llist_remove (read_list, le);
+ llist_remove(read_list, le);
- rf = le->value;
- assert (rf != NULL);
- rf->rf_type = RF_REMOVE;
+ rf = le->value;
+ assert(rf != NULL);
+ rf->rf_type = RF_REMOVE;
- pthread_mutex_unlock (&read_lock);
+ pthread_mutex_unlock(&read_lock);
- llentry_destroy (le);
+ llentry_destroy(le);
- DEBUG ("plugin_unregister_read: Marked `%s' for removal.", name);
+ DEBUG("plugin_unregister_read: Marked `%s' for removal.", name);
- return (0);
+ return (0);
} /* }}} int plugin_unregister_read */
-void plugin_log_available_writers (void)
-{
- log_list_callbacks (&list_write, "Available write targets:");
+void plugin_log_available_writers(void) {
+ log_list_callbacks(&list_write, "Available write targets:");
}
-static int compare_read_func_group (llentry_t *e, void *ud) /* {{{ */
+static int compare_read_func_group(llentry_t *e, void *ud) /* {{{ */
{
- read_func_t *rf = e->value;
- char *group = ud;
+ read_func_t *rf = e->value;
+ char *group = ud;
- return strcmp (rf->rf_group, (const char *)group);
+ return strcmp(rf->rf_group, (const char *)group);
} /* }}} int compare_read_func_group */
-int plugin_unregister_read_group (const char *group) /* {{{ */
+int plugin_unregister_read_group(const char *group) /* {{{ */
{
- llentry_t *le;
- read_func_t *rf;
+ llentry_t *le;
+ read_func_t *rf;
- int found = 0;
+ int found = 0;
- if (group == NULL)
- return (-ENOENT);
+ if (group == NULL)
+ return (-ENOENT);
- pthread_mutex_lock (&read_lock);
+ pthread_mutex_lock(&read_lock);
- if (read_list == NULL)
- {
- pthread_mutex_unlock (&read_lock);
- return (-ENOENT);
- }
+ if (read_list == NULL) {
+ pthread_mutex_unlock(&read_lock);
+ return (-ENOENT);
+ }
- while (42)
- {
- le = llist_search_custom (read_list,
- compare_read_func_group, (void *)group);
+ while (42) {
+ le = llist_search_custom(read_list, compare_read_func_group, (void *)group);
- if (le == NULL)
- break;
+ if (le == NULL)
+ break;
- ++found;
+ ++found;
- llist_remove (read_list, le);
+ llist_remove(read_list, le);
- rf = le->value;
- assert (rf != NULL);
- rf->rf_type = RF_REMOVE;
+ rf = le->value;
+ assert(rf != NULL);
+ rf->rf_type = RF_REMOVE;
- llentry_destroy (le);
+ llentry_destroy(le);
- DEBUG ("plugin_unregister_read_group: "
- "Marked `%s' (group `%s') for removal.",
- rf->rf_name, group);
- }
+ DEBUG("plugin_unregister_read_group: "
+ "Marked `%s' (group `%s') for removal.",
+ rf->rf_name, group);
+ }
- pthread_mutex_unlock (&read_lock);
+ pthread_mutex_unlock(&read_lock);
- if (found == 0)
- {
- WARNING ("plugin_unregister_read_group: No such "
- "group of read function: %s", group);
- return (-ENOENT);
- }
+ if (found == 0) {
+ WARNING("plugin_unregister_read_group: No such "
+ "group of read function: %s",
+ group);
+ return (-ENOENT);
+ }
- return (0);
+ return (0);
} /* }}} int plugin_unregister_read_group */
-int plugin_unregister_write (const char *name)
-{
- return (plugin_unregister (list_write, name));
+int plugin_unregister_write(const char *name) {
+ return (plugin_unregister(list_write, name));
}
-int plugin_unregister_flush (const char *name)
-{
- plugin_ctx_t ctx = plugin_get_ctx ();
+int plugin_unregister_flush(const char *name) {
+ plugin_ctx_t ctx = plugin_get_ctx();
- if (ctx.flush_interval != 0)
- {
- char *flush_name;
+ if (ctx.flush_interval != 0) {
+ char *flush_name;
- flush_name = plugin_flush_callback_name (name);
- if (flush_name != NULL)
- {
- plugin_unregister_read(flush_name);
- sfree (flush_name);
- }
- }
+ flush_name = plugin_flush_callback_name(name);
+ if (flush_name != NULL) {
+ plugin_unregister_read(flush_name);
+ sfree(flush_name);
+ }
+ }
- return plugin_unregister (list_flush, name);
+ return plugin_unregister(list_flush, name);
}
-int plugin_unregister_missing (const char *name)
-{
- return (plugin_unregister (list_missing, name));
+int plugin_unregister_missing(const char *name) {
+ return (plugin_unregister(list_missing, name));
}
-int plugin_unregister_shutdown (const char *name)
-{
- return (plugin_unregister (list_shutdown, name));
+int plugin_unregister_shutdown(const char *name) {
+ return (plugin_unregister(list_shutdown, name));
}
-int plugin_unregister_data_set (const char *name)
-{
- data_set_t *ds;
+int plugin_unregister_data_set(const char *name) {
+ data_set_t *ds;
- if (data_sets == NULL)
- return (-1);
+ if (data_sets == NULL)
+ return (-1);
- if (c_avl_remove (data_sets, name, NULL, (void *) &ds) != 0)
- return (-1);
+ if (c_avl_remove(data_sets, name, NULL, (void *)&ds) != 0)
+ return (-1);
- sfree (ds->ds);
- sfree (ds);
+ sfree(ds->ds);
+ sfree(ds);
- return (0);
+ return (0);
} /* int plugin_unregister_data_set */
-int plugin_unregister_log (const char *name)
-{
- return (plugin_unregister (list_log, name));
+int plugin_unregister_log(const char *name) {
+ return (plugin_unregister(list_log, name));
}
-int plugin_unregister_notification (const char *name)
-{
- return (plugin_unregister (list_notification, name));
+int plugin_unregister_notification(const char *name) {
+ return (plugin_unregister(list_notification, name));
}
-int plugin_init_all (void)
-{
- char const *chain_name;
- llentry_t *le;
- int status;
- int ret = 0;
-
- /* Init the value cache */
- uc_init ();
-
- if (IS_TRUE (global_option_get ("CollectInternalStats")))
- record_statistics = 1;
-
- chain_name = global_option_get ("PreCacheChain");
- pre_cache_chain = fc_chain_get_by_name (chain_name);
-
- chain_name = global_option_get ("PostCacheChain");
- post_cache_chain = fc_chain_get_by_name (chain_name);
-
- write_limit_high = global_option_get_long ("WriteQueueLimitHigh",
- /* default = */ 0);
- if (write_limit_high < 0)
- {
- ERROR ("WriteQueueLimitHigh must be positive or zero.");
- write_limit_high = 0;
- }
-
- write_limit_low = global_option_get_long ("WriteQueueLimitLow",
- /* default = */ write_limit_high / 2);
- if (write_limit_low < 0)
- {
- ERROR ("WriteQueueLimitLow must be positive or zero.");
- write_limit_low = write_limit_high / 2;
- }
- else if (write_limit_low > write_limit_high)
- {
- ERROR ("WriteQueueLimitLow must not be larger than "
- "WriteQueueLimitHigh.");
- write_limit_low = write_limit_high;
- }
-
- write_threads_num = global_option_get_long ("WriteThreads",
- /* default = */ 5);
- if (write_threads_num < 1)
- {
- ERROR ("WriteThreads must be positive.");
- write_threads_num = 5;
- }
-
- if ((list_init == NULL) && (read_heap == NULL))
- return ret;
-
- /* Calling all init callbacks before checking if read callbacks
- * are available allows the init callbacks to register the read
- * callback. */
- le = llist_head (list_init);
- while (le != NULL)
- {
- callback_func_t *cf;
- plugin_init_cb callback;
- plugin_ctx_t old_ctx;
-
- cf = le->value;
- old_ctx = plugin_set_ctx (cf->cf_ctx);
- callback = cf->cf_callback;
- status = (*callback) ();
- plugin_set_ctx (old_ctx);
-
- if (status != 0)
- {
- ERROR ("Initialization of plugin `%s' "
- "failed with status %i. "
- "Plugin will be unloaded.",
- le->key, status);
- /* Plugins that register read callbacks from the init
- * callback should take care of appropriate error
- * handling themselves. */
- /* FIXME: Unload _all_ functions */
- plugin_unregister_read (le->key);
- ret = -1;
- }
-
- le = le->next;
- }
-
- start_write_threads ((size_t) write_threads_num);
-
- max_read_interval = global_option_get_time ("MaxReadInterval",
- DEFAULT_MAX_READ_INTERVAL);
-
- /* Start read-threads */
- if (read_heap != NULL)
- {
- const char *rt;
- int num;
-
- rt = global_option_get ("ReadThreads");
- num = atoi (rt);
- if (num != -1)
- start_read_threads ((num > 0) ? ((size_t) num) : 5);
- }
- return ret;
+int plugin_init_all(void) {
+ char const *chain_name;
+ llentry_t *le;
+ int status;
+ int ret = 0;
+
+ /* Init the value cache */
+ uc_init();
+
+ if (IS_TRUE(global_option_get("CollectInternalStats")))
+ record_statistics = 1;
+
+ chain_name = global_option_get("PreCacheChain");
+ pre_cache_chain = fc_chain_get_by_name(chain_name);
+
+ chain_name = global_option_get("PostCacheChain");
+ post_cache_chain = fc_chain_get_by_name(chain_name);
+
+ write_limit_high = global_option_get_long("WriteQueueLimitHigh",
+ /* default = */ 0);
+ if (write_limit_high < 0) {
+ ERROR("WriteQueueLimitHigh must be positive or zero.");
+ write_limit_high = 0;
+ }
+
+ write_limit_low =
+ global_option_get_long("WriteQueueLimitLow",
+ /* default = */ write_limit_high / 2);
+ if (write_limit_low < 0) {
+ ERROR("WriteQueueLimitLow must be positive or zero.");
+ write_limit_low = write_limit_high / 2;
+ } else if (write_limit_low > write_limit_high) {
+ ERROR("WriteQueueLimitLow must not be larger than "
+ "WriteQueueLimitHigh.");
+ write_limit_low = write_limit_high;
+ }
+
+ write_threads_num = global_option_get_long("WriteThreads",
+ /* default = */ 5);
+ if (write_threads_num < 1) {
+ ERROR("WriteThreads must be positive.");
+ write_threads_num = 5;
+ }
+
+ if ((list_init == NULL) && (read_heap == NULL))
+ return ret;
+
+ /* Calling all init callbacks before checking if read callbacks
+ * are available allows the init callbacks to register the read
+ * callback. */
+ le = llist_head(list_init);
+ while (le != NULL) {
+ callback_func_t *cf;
+ plugin_init_cb callback;
+ plugin_ctx_t old_ctx;
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx(cf->cf_ctx);
+ callback = cf->cf_callback;
+ status = (*callback)();
+ plugin_set_ctx(old_ctx);
+
+ if (status != 0) {
+ ERROR("Initialization of plugin `%s' "
+ "failed with status %i. "
+ "Plugin will be unloaded.",
+ le->key, status);
+ /* Plugins that register read callbacks from the init
+ * callback should take care of appropriate error
+ * handling themselves. */
+ /* FIXME: Unload _all_ functions */
+ plugin_unregister_read(le->key);
+ ret = -1;
+ }
+
+ le = le->next;
+ }
+
+ start_write_threads((size_t)write_threads_num);
+
+ max_read_interval =
+ global_option_get_time("MaxReadInterval", DEFAULT_MAX_READ_INTERVAL);
+
+ /* Start read-threads */
+ if (read_heap != NULL) {
+ const char *rt;
+ int num;
+
+ rt = global_option_get("ReadThreads");
+ num = atoi(rt);
+ if (num != -1)
+ start_read_threads((num > 0) ? ((size_t)num) : 5);
+ }
+ return ret;
} /* void plugin_init_all */
/* TODO: Rename this function. */
-void plugin_read_all (void)
-{
- if(record_statistics) {
- plugin_update_internal_statistics ();
- }
- uc_check_timeout ();
+void plugin_read_all(void) {
+ if (record_statistics) {
+ plugin_update_internal_statistics();
+ }
+ uc_check_timeout();
- return;
+ return;
} /* void plugin_read_all */
/* Read function called when the `-T' command line argument is given. */
-int plugin_read_all_once (void)
-{
- int status;
- int return_status = 0;
-
- if (read_heap == NULL)
- {
- NOTICE ("No read-functions are registered.");
- return (0);
- }
-
- while (42)
- {
- read_func_t *rf;
- plugin_ctx_t old_ctx;
-
- rf = c_heap_get_root (read_heap);
- if (rf == NULL)
- break;
-
- old_ctx = plugin_set_ctx (rf->rf_ctx);
-
- if (rf->rf_type == RF_SIMPLE)
- {
- int (*callback) (void);
-
- callback = rf->rf_callback;
- status = (*callback) ();
- }
- else
- {
- plugin_read_cb callback;
-
- callback = rf->rf_callback;
- status = (*callback) (&rf->rf_udata);
- }
-
- plugin_set_ctx (old_ctx);
-
- if (status != 0)
- {
- NOTICE ("read-function of plugin `%s' failed.",
- rf->rf_name);
- return_status = -1;
- }
-
- sfree (rf->rf_name);
- destroy_callback ((void *) rf);
- }
-
- return (return_status);
+int plugin_read_all_once(void) {
+ int status;
+ int return_status = 0;
+
+ if (read_heap == NULL) {
+ NOTICE("No read-functions are registered.");
+ return (0);
+ }
+
+ while (42) {
+ read_func_t *rf;
+ plugin_ctx_t old_ctx;
+
+ rf = c_heap_get_root(read_heap);
+ if (rf == NULL)
+ break;
+
+ old_ctx = plugin_set_ctx(rf->rf_ctx);
+
+ if (rf->rf_type == RF_SIMPLE) {
+ int (*callback)(void);
+
+ callback = rf->rf_callback;
+ status = (*callback)();
+ } else {
+ plugin_read_cb callback;
+
+ callback = rf->rf_callback;
+ status = (*callback)(&rf->rf_udata);
+ }
+
+ plugin_set_ctx(old_ctx);
+
+ if (status != 0) {
+ NOTICE("read-function of plugin `%s' failed.", rf->rf_name);
+ return_status = -1;
+ }
+
+ sfree(rf->rf_name);
+ destroy_callback((void *)rf);
+ }
+
+ return (return_status);
} /* int plugin_read_all_once */
-int plugin_write (const char *plugin, /* {{{ */
- const data_set_t *ds, const value_list_t *vl)
-{
+int plugin_write(const char *plugin, /* {{{ */
+ const data_set_t *ds, const value_list_t *vl) {
llentry_t *le;
int status;
if (list_write == NULL)
return (ENOENT);
- if (ds == NULL)
- {
- ds = plugin_get_ds (vl->type);
- if (ds == NULL)
- {
- ERROR ("plugin_write: Unable to lookup type `%s'.", vl->type);
+ if (ds == NULL) {
+ ds = plugin_get_ds(vl->type);
+ if (ds == NULL) {
+ ERROR("plugin_write: Unable to lookup type `%s'.", vl->type);
return (ENOENT);
}
}
- if (plugin == NULL)
- {
+ if (plugin == NULL) {
int success = 0;
int failure = 0;
- le = llist_head (list_write);
- while (le != NULL)
- {
+ le = llist_head(list_write);
+ while (le != NULL) {
callback_func_t *cf = le->value;
plugin_write_cb callback;
/* do not switch plugin context; rather keep the context (interval)
* information of the calling read plugin */
- DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ DEBUG("plugin: plugin_write: Writing values via %s.", le->key);
callback = cf->cf_callback;
- status = (*callback) (ds, vl, &cf->cf_udata);
+ status = (*callback)(ds, vl, &cf->cf_udata);
if (status != 0)
failure++;
else
status = -1;
else
status = 0;
- }
- else /* plugin != NULL */
+ } else /* plugin != NULL */
{
callback_func_t *cf;
plugin_write_cb callback;
- le = llist_head (list_write);
- while (le != NULL)
- {
- if (strcasecmp (plugin, le->key) == 0)
+ le = llist_head(list_write);
+ while (le != NULL) {
+ if (strcasecmp(plugin, le->key) == 0)
break;
le = le->next;
/* do not switch plugin context; rather keep the context (interval)
* information of the calling read plugin */
- DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ DEBUG("plugin: plugin_write: Writing values via %s.", le->key);
callback = cf->cf_callback;
- status = (*callback) (ds, vl, &cf->cf_udata);
+ status = (*callback)(ds, vl, &cf->cf_udata);
}
return (status);
} /* }}} int plugin_write */
-int plugin_flush (const char *plugin, cdtime_t timeout, const char *identifier)
-{
+int plugin_flush(const char *plugin, cdtime_t timeout, const char *identifier) {
llentry_t *le;
if (list_flush == NULL)
return (0);
- le = llist_head (list_flush);
- while (le != NULL)
- {
+ le = llist_head(list_flush);
+ while (le != NULL) {
callback_func_t *cf;
plugin_flush_cb callback;
plugin_ctx_t old_ctx;
- if ((plugin != NULL)
- && (strcmp (plugin, le->key) != 0))
- {
+ if ((plugin != NULL) && (strcmp(plugin, le->key) != 0)) {
le = le->next;
continue;
}
cf = le->value;
- old_ctx = plugin_set_ctx (cf->cf_ctx);
+ old_ctx = plugin_set_ctx(cf->cf_ctx);
callback = cf->cf_callback;
- (*callback) (timeout, identifier, &cf->cf_udata);
+ (*callback)(timeout, identifier, &cf->cf_udata);
- plugin_set_ctx (old_ctx);
+ plugin_set_ctx(old_ctx);
le = le->next;
}
return (0);
} /* int plugin_flush */
-int plugin_shutdown_all (void)
-{
- llentry_t *le;
- int ret = 0; // Assume success.
-
- destroy_all_callbacks (&list_init);
-
- stop_read_threads ();
-
- pthread_mutex_lock (&read_lock);
- llist_destroy (read_list);
- read_list = NULL;
- pthread_mutex_unlock (&read_lock);
-
- destroy_read_heap ();
-
- /* blocks until all write threads have shut down. */
- stop_write_threads ();
-
- /* ask all plugins to write out the state they kept. */
- plugin_flush (/* plugin = */ NULL,
- /* timeout = */ 0,
- /* identifier = */ NULL);
-
- le = NULL;
- if (list_shutdown != NULL)
- le = llist_head (list_shutdown);
-
- while (le != NULL)
- {
- callback_func_t *cf;
- plugin_shutdown_cb callback;
- plugin_ctx_t old_ctx;
-
- cf = le->value;
- old_ctx = plugin_set_ctx (cf->cf_ctx);
- callback = cf->cf_callback;
-
- /* Advance the pointer before calling the callback allows
- * shutdown functions to unregister themselves. If done the
- * other way around the memory `le' points to will be freed
- * after callback returns. */
- le = le->next;
-
- if ((*callback) () != 0)
- ret = -1;
-
- plugin_set_ctx (old_ctx);
- }
-
- /* Write plugins which use the `user_data' pointer usually need the
- * same data available to the flush callback. If this is the case, set
- * the free_function to NULL when registering the flush callback and to
- * the real free function when registering the write callback. This way
- * the data isn't freed twice. */
- destroy_all_callbacks (&list_flush);
- destroy_all_callbacks (&list_missing);
- destroy_all_callbacks (&list_write);
-
- destroy_all_callbacks (&list_notification);
- destroy_all_callbacks (&list_shutdown);
- destroy_all_callbacks (&list_log);
-
- plugin_free_loaded ();
- plugin_free_data_sets ();
- return (ret);
+int plugin_shutdown_all(void) {
+ llentry_t *le;
+ int ret = 0; // Assume success.
+
+ destroy_all_callbacks(&list_init);
+
+ stop_read_threads();
+
+ pthread_mutex_lock(&read_lock);
+ llist_destroy(read_list);
+ read_list = NULL;
+ pthread_mutex_unlock(&read_lock);
+
+ destroy_read_heap();
+
+ /* blocks until all write threads have shut down. */
+ stop_write_threads();
+
+ /* ask all plugins to write out the state they kept. */
+ plugin_flush(/* plugin = */ NULL,
+ /* timeout = */ 0,
+ /* identifier = */ NULL);
+
+ le = NULL;
+ if (list_shutdown != NULL)
+ le = llist_head(list_shutdown);
+
+ while (le != NULL) {
+ callback_func_t *cf;
+ plugin_shutdown_cb callback;
+ plugin_ctx_t old_ctx;
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx(cf->cf_ctx);
+ callback = cf->cf_callback;
+
+ /* Advance the pointer before calling the callback allows
+ * shutdown functions to unregister themselves. If done the
+ * other way around the memory `le' points to will be freed
+ * after callback returns. */
+ le = le->next;
+
+ if ((*callback)() != 0)
+ ret = -1;
+
+ plugin_set_ctx(old_ctx);
+ }
+
+ /* Write plugins which use the `user_data' pointer usually need the
+ * same data available to the flush callback. If this is the case, set
+ * the free_function to NULL when registering the flush callback and to
+ * the real free function when registering the write callback. This way
+ * the data isn't freed twice. */
+ destroy_all_callbacks(&list_flush);
+ destroy_all_callbacks(&list_missing);
+ destroy_all_callbacks(&list_write);
+
+ destroy_all_callbacks(&list_notification);
+ destroy_all_callbacks(&list_shutdown);
+ destroy_all_callbacks(&list_log);
+
+ plugin_free_loaded();
+ plugin_free_data_sets();
+ return (ret);
} /* void plugin_shutdown_all */
-int plugin_dispatch_missing (const value_list_t *vl) /* {{{ */
+int plugin_dispatch_missing(const value_list_t *vl) /* {{{ */
{
llentry_t *le;
if (list_missing == NULL)
return (0);
- le = llist_head (list_missing);
- while (le != NULL)
- {
+ le = llist_head(list_missing);
+ while (le != NULL) {
callback_func_t *cf;
plugin_missing_cb callback;
plugin_ctx_t old_ctx;
int status;
cf = le->value;
- old_ctx = plugin_set_ctx (cf->cf_ctx);
+ old_ctx = plugin_set_ctx(cf->cf_ctx);
callback = cf->cf_callback;
- status = (*callback) (vl, &cf->cf_udata);
- plugin_set_ctx (old_ctx);
- if (status != 0)
- {
- if (status < 0)
- {
- ERROR ("plugin_dispatch_missing: Callback function \"%s\" "
- "failed with status %i.",
- le->key, status);
+ status = (*callback)(vl, &cf->cf_udata);
+ plugin_set_ctx(old_ctx);
+ if (status != 0) {
+ if (status < 0) {
+ ERROR("plugin_dispatch_missing: Callback function \"%s\" "
+ "failed with status %i.",
+ le->key, status);
return (status);
- }
- else
- {
+ } else {
return (0);
}
}
return (0);
} /* int }}} plugin_dispatch_missing */
-static int plugin_dispatch_values_internal (value_list_t *vl)
-{
- int status;
- static c_complain_t no_write_complaint = C_COMPLAIN_INIT_STATIC;
-
- data_set_t *ds;
-
- _Bool free_meta_data = 0;
-
- assert (vl != NULL);
-
- /* These fields are initialized by plugin_value_list_clone() if needed: */
- assert (vl->host[0] != 0);
- assert (vl->time != 0); /* The time is determined at _enqueue_ time. */
- assert (vl->interval != 0);
-
- if (vl->type[0] == 0 || vl->values == NULL || vl->values_len < 1)
- {
- ERROR ("plugin_dispatch_values: Invalid value list "
- "from plugin %s.", vl->plugin);
- return (-1);
- }
-
- /* Free meta data only if the calling function didn't specify any. In
- * this case matches and targets may add some and the calling function
- * may not expect (and therefore free) that data. */
- if (vl->meta == NULL)
- free_meta_data = 1;
-
- if (list_write == NULL)
- c_complain_once (LOG_WARNING, &no_write_complaint,
- "plugin_dispatch_values: No write callback has been "
- "registered. Please load at least one output plugin, "
- "if you want the collected data to be stored.");
-
- if (data_sets == NULL)
- {
- ERROR ("plugin_dispatch_values: No data sets registered. "
- "Could the types database be read? Check "
- "your `TypesDB' setting!");
- return (-1);
- }
-
- if (c_avl_get (data_sets, vl->type, (void *) &ds) != 0)
- {
- char ident[6 * DATA_MAX_NAME_LEN];
-
- FORMAT_VL (ident, sizeof (ident), vl);
- INFO ("plugin_dispatch_values: Dataset not found: %s "
- "(from \"%s\"), check your types.db!",
- vl->type, ident);
- return (-1);
- }
-
- DEBUG ("plugin_dispatch_values: time = %.3f; interval = %.3f; "
- "host = %s; "
- "plugin = %s; plugin_instance = %s; "
- "type = %s; type_instance = %s;",
- CDTIME_T_TO_DOUBLE (vl->time),
- CDTIME_T_TO_DOUBLE (vl->interval),
- vl->host,
- vl->plugin, vl->plugin_instance,
- vl->type, vl->type_instance);
+static int plugin_dispatch_values_internal(value_list_t *vl) {
+ int status;
+ static c_complain_t no_write_complaint = C_COMPLAIN_INIT_STATIC;
+
+ data_set_t *ds;
+
+ _Bool free_meta_data = 0;
+
+ assert(vl != NULL);
+
+ /* These fields are initialized by plugin_value_list_clone() if needed: */
+ assert(vl->host[0] != 0);
+ assert(vl->time != 0); /* The time is determined at _enqueue_ time. */
+ assert(vl->interval != 0);
+
+ if (vl->type[0] == 0 || vl->values == NULL || vl->values_len < 1) {
+ ERROR("plugin_dispatch_values: Invalid value list "
+ "from plugin %s.",
+ vl->plugin);
+ return (-1);
+ }
+
+ /* Free meta data only if the calling function didn't specify any. In
+ * this case matches and targets may add some and the calling function
+ * may not expect (and therefore free) that data. */
+ if (vl->meta == NULL)
+ free_meta_data = 1;
+
+ if (list_write == NULL)
+ c_complain_once(LOG_WARNING, &no_write_complaint,
+ "plugin_dispatch_values: No write callback has been "
+ "registered. Please load at least one output plugin, "
+ "if you want the collected data to be stored.");
+
+ if (data_sets == NULL) {
+ ERROR("plugin_dispatch_values: No data sets registered. "
+ "Could the types database be read? Check "
+ "your `TypesDB' setting!");
+ return (-1);
+ }
+
+ if (c_avl_get(data_sets, vl->type, (void *)&ds) != 0) {
+ char ident[6 * DATA_MAX_NAME_LEN];
+
+ FORMAT_VL(ident, sizeof(ident), vl);
+ INFO("plugin_dispatch_values: Dataset not found: %s "
+ "(from \"%s\"), check your types.db!",
+ vl->type, ident);
+ return (-1);
+ }
+
+ DEBUG("plugin_dispatch_values: time = %.3f; interval = %.3f; "
+ "host = %s; "
+ "plugin = %s; plugin_instance = %s; "
+ "type = %s; type_instance = %s;",
+ CDTIME_T_TO_DOUBLE(vl->time), CDTIME_T_TO_DOUBLE(vl->interval),
+ vl->host, vl->plugin, vl->plugin_instance, vl->type, vl->type_instance);
#if COLLECT_DEBUG
- assert (0 == strcmp (ds->type, vl->type));
+ assert(0 == strcmp(ds->type, vl->type));
#else
- if (0 != strcmp (ds->type, vl->type))
- WARNING ("plugin_dispatch_values: (ds->type = %s) != (vl->type = %s)",
- ds->type, vl->type);
+ if (0 != strcmp(ds->type, vl->type))
+ WARNING("plugin_dispatch_values: (ds->type = %s) != (vl->type = %s)",
+ ds->type, vl->type);
#endif
#if COLLECT_DEBUG
- assert (ds->ds_num == vl->values_len);
+ assert(ds->ds_num == vl->values_len);
#else
- if (ds->ds_num != vl->values_len)
- {
- ERROR ("plugin_dispatch_values: ds->type = %s: "
- "(ds->ds_num = %zu) != "
- "(vl->values_len = %zu)",
- ds->type, ds->ds_num, vl->values_len);
- return (-1);
- }
+ if (ds->ds_num != vl->values_len) {
+ ERROR("plugin_dispatch_values: ds->type = %s: "
+ "(ds->ds_num = %zu) != "
+ "(vl->values_len = %zu)",
+ ds->type, ds->ds_num, vl->values_len);
+ return (-1);
+ }
#endif
- escape_slashes (vl->host, sizeof (vl->host));
- escape_slashes (vl->plugin, sizeof (vl->plugin));
- escape_slashes (vl->plugin_instance, sizeof (vl->plugin_instance));
- escape_slashes (vl->type, sizeof (vl->type));
- escape_slashes (vl->type_instance, sizeof (vl->type_instance));
-
- if (pre_cache_chain != NULL)
- {
- status = fc_process_chain (ds, vl, pre_cache_chain);
- if (status < 0)
- {
- WARNING ("plugin_dispatch_values: Running the "
- "pre-cache chain failed with "
- "status %i (%#x).",
- status, status);
- }
- else if (status == FC_TARGET_STOP)
- return (0);
- }
-
- /* Update the value cache */
- uc_update (ds, vl);
-
- if (post_cache_chain != NULL)
- {
- status = fc_process_chain (ds, vl, post_cache_chain);
- if (status < 0)
- {
- WARNING ("plugin_dispatch_values: Running the "
- "post-cache chain failed with "
- "status %i (%#x).",
- status, status);
- }
- }
- else
- fc_default_action (ds, vl);
-
- if ((free_meta_data != 0) && (vl->meta != NULL))
- {
- meta_data_destroy (vl->meta);
- vl->meta = NULL;
- }
-
- return (0);
+ escape_slashes(vl->host, sizeof(vl->host));
+ escape_slashes(vl->plugin, sizeof(vl->plugin));
+ escape_slashes(vl->plugin_instance, sizeof(vl->plugin_instance));
+ escape_slashes(vl->type, sizeof(vl->type));
+ escape_slashes(vl->type_instance, sizeof(vl->type_instance));
+
+ if (pre_cache_chain != NULL) {
+ status = fc_process_chain(ds, vl, pre_cache_chain);
+ if (status < 0) {
+ WARNING("plugin_dispatch_values: Running the "
+ "pre-cache chain failed with "
+ "status %i (%#x).",
+ status, status);
+ } else if (status == FC_TARGET_STOP)
+ return (0);
+ }
+
+ /* Update the value cache */
+ uc_update(ds, vl);
+
+ if (post_cache_chain != NULL) {
+ status = fc_process_chain(ds, vl, post_cache_chain);
+ if (status < 0) {
+ WARNING("plugin_dispatch_values: Running the "
+ "post-cache chain failed with "
+ "status %i (%#x).",
+ status, status);
+ }
+ } else
+ fc_default_action(ds, vl);
+
+ if ((free_meta_data != 0) && (vl->meta != NULL)) {
+ meta_data_destroy(vl->meta);
+ vl->meta = NULL;
+ }
+
+ return (0);
} /* int plugin_dispatch_values_internal */
-static double get_drop_probability (void) /* {{{ */
+static double get_drop_probability(void) /* {{{ */
{
- long pos;
- long size;
- long wql;
+ long pos;
+ long size;
+ long wql;
- pthread_mutex_lock (&write_lock);
- wql = write_queue_length;
- pthread_mutex_unlock (&write_lock);
+ pthread_mutex_lock(&write_lock);
+ wql = write_queue_length;
+ pthread_mutex_unlock(&write_lock);
- if (wql < write_limit_low)
- return (0.0);
- if (wql >= write_limit_high)
- return (1.0);
+ if (wql < write_limit_low)
+ return (0.0);
+ if (wql >= write_limit_high)
+ return (1.0);
- pos = 1 + wql - write_limit_low;
- size = 1 + write_limit_high - write_limit_low;
+ pos = 1 + wql - write_limit_low;
+ size = 1 + write_limit_high - write_limit_low;
- return (((double) pos) / ((double) size));
+ return (((double)pos) / ((double)size));
} /* }}} double get_drop_probability */
-static _Bool check_drop_value (void) /* {{{ */
+static _Bool check_drop_value(void) /* {{{ */
{
- static cdtime_t last_message_time = 0;
- static pthread_mutex_t last_message_lock = PTHREAD_MUTEX_INITIALIZER;
-
- double p;
- double q;
- int status;
-
- if (write_limit_high == 0)
- return (0);
-
- p = get_drop_probability ();
- if (p == 0.0)
- return (0);
-
- status = pthread_mutex_trylock (&last_message_lock);
- if (status == 0)
- {
- cdtime_t now;
-
- now = cdtime ();
- if ((now - last_message_time) > TIME_T_TO_CDTIME_T (1))
- {
- last_message_time = now;
- ERROR ("plugin_dispatch_values: Low water mark "
- "reached. Dropping %.0f%% of metrics.",
- 100.0 * p);
- }
- pthread_mutex_unlock (&last_message_lock);
- }
-
- if (p == 1.0)
- return (1);
-
- q = cdrand_d ();
- if (q > p)
- return (1);
- else
- return (0);
+ static cdtime_t last_message_time = 0;
+ static pthread_mutex_t last_message_lock = PTHREAD_MUTEX_INITIALIZER;
+
+ double p;
+ double q;
+ int status;
+
+ if (write_limit_high == 0)
+ return (0);
+
+ p = get_drop_probability();
+ if (p == 0.0)
+ return (0);
+
+ status = pthread_mutex_trylock(&last_message_lock);
+ if (status == 0) {
+ cdtime_t now;
+
+ now = cdtime();
+ if ((now - last_message_time) > TIME_T_TO_CDTIME_T(1)) {
+ last_message_time = now;
+ ERROR("plugin_dispatch_values: Low water mark "
+ "reached. Dropping %.0f%% of metrics.",
+ 100.0 * p);
+ }
+ pthread_mutex_unlock(&last_message_lock);
+ }
+
+ if (p == 1.0)
+ return (1);
+
+ q = cdrand_d();
+ if (q > p)
+ return (1);
+ else
+ return (0);
} /* }}} _Bool check_drop_value */
-int plugin_dispatch_values (value_list_t const *vl)
-{
- int status;
- static pthread_mutex_t statistics_lock = PTHREAD_MUTEX_INITIALIZER;
-
- if (check_drop_value ()) {
- if(record_statistics) {
- pthread_mutex_lock(&statistics_lock);
- stats_values_dropped++;
- pthread_mutex_unlock(&statistics_lock);
- }
- return (0);
- }
-
- status = plugin_write_enqueue (vl);
- if (status != 0)
- {
- char errbuf[1024];
- ERROR ("plugin_dispatch_values: plugin_write_enqueue failed "
- "with status %i (%s).", status,
- sstrerror (status, errbuf, sizeof (errbuf)));
- return (status);
- }
-
- return (0);
+int plugin_dispatch_values(value_list_t const *vl) {
+ int status;
+ static pthread_mutex_t statistics_lock = PTHREAD_MUTEX_INITIALIZER;
+
+ if (check_drop_value()) {
+ if (record_statistics) {
+ pthread_mutex_lock(&statistics_lock);
+ stats_values_dropped++;
+ pthread_mutex_unlock(&statistics_lock);
+ }
+ return (0);
+ }
+
+ status = plugin_write_enqueue(vl);
+ if (status != 0) {
+ char errbuf[1024];
+ ERROR("plugin_dispatch_values: plugin_write_enqueue failed "
+ "with status %i (%s).",
+ status, sstrerror(status, errbuf, sizeof(errbuf)));
+ return (status);
+ }
+
+ return (0);
}
-__attribute__((sentinel))
-int plugin_dispatch_multivalue (value_list_t const *template, /* {{{ */
- _Bool store_percentage, int store_type, ...)
-{
- value_list_t *vl;
- int failed = 0;
- gauge_t sum = 0.0;
- va_list ap;
-
- assert (template->values_len == 1);
-
- /* Calculate sum for Gauge to calculate percent if needed */
- if (DS_TYPE_GAUGE == store_type) {
- va_start (ap, store_type);
- while (42)
- {
- char const *name;
- gauge_t value;
-
- name = va_arg (ap, char const *);
- if (name == NULL)
- break;
-
- value = va_arg (ap, gauge_t);
- if (!isnan (value))
- sum += value;
- }
- va_end (ap);
- }
-
-
- vl = plugin_value_list_clone (template);
- /* plugin_value_list_clone makes sure vl->time is set to non-zero. */
- if (store_percentage)
- sstrncpy (vl->type, "percent", sizeof (vl->type));
-
- va_start (ap, store_type);
- while (42)
- {
- char const *name;
- int status;
-
- /* Set the type instance. */
- name = va_arg (ap, char const *);
- if (name == NULL)
- break;
- sstrncpy (vl->type_instance, name, sizeof (vl->type_instance));
-
- /* Set the value. */
- switch (store_type)
- {
- case DS_TYPE_GAUGE:
- vl->values[0].gauge = va_arg (ap, gauge_t);
- if (store_percentage)
- vl->values[0].gauge *= sum ? (100.0 / sum) : NAN;
- break;
- case DS_TYPE_ABSOLUTE:
- vl->values[0].absolute = va_arg (ap, absolute_t);
- break;
- case DS_TYPE_COUNTER:
- vl->values[0].counter = va_arg (ap, counter_t);
- break;
- case DS_TYPE_DERIVE:
- vl->values[0].derive = va_arg (ap, derive_t);
- break;
- default:
- ERROR ("plugin_dispatch_multivalue: given store_type is incorrect.");
- failed++;
- }
-
-
- status = plugin_write_enqueue (vl);
- if (status != 0)
- failed++;
- }
- va_end (ap);
-
- plugin_value_list_free (vl);
- return (failed);
+__attribute__((sentinel)) int
+plugin_dispatch_multivalue(value_list_t const *template, /* {{{ */
+ _Bool store_percentage, int store_type, ...) {
+ value_list_t *vl;
+ int failed = 0;
+ gauge_t sum = 0.0;
+ va_list ap;
+
+ assert(template->values_len == 1);
+
+ /* Calculate sum for Gauge to calculate percent if needed */
+ if (DS_TYPE_GAUGE == store_type) {
+ va_start(ap, store_type);
+ while (42) {
+ char const *name;
+ gauge_t value;
+
+ name = va_arg(ap, char const *);
+ if (name == NULL)
+ break;
+
+ value = va_arg(ap, gauge_t);
+ if (!isnan(value))
+ sum += value;
+ }
+ va_end(ap);
+ }
+
+ vl = plugin_value_list_clone(template);
+ /* plugin_value_list_clone makes sure vl->time is set to non-zero. */
+ if (store_percentage)
+ sstrncpy(vl->type, "percent", sizeof(vl->type));
+
+ va_start(ap, store_type);
+ while (42) {
+ char const *name;
+ int status;
+
+ /* Set the type instance. */
+ name = va_arg(ap, char const *);
+ if (name == NULL)
+ break;
+ sstrncpy(vl->type_instance, name, sizeof(vl->type_instance));
+
+ /* Set the value. */
+ switch (store_type) {
+ case DS_TYPE_GAUGE:
+ vl->values[0].gauge = va_arg(ap, gauge_t);
+ if (store_percentage)
+ vl->values[0].gauge *= sum ? (100.0 / sum) : NAN;
+ break;
+ case DS_TYPE_ABSOLUTE:
+ vl->values[0].absolute = va_arg(ap, absolute_t);
+ break;
+ case DS_TYPE_COUNTER:
+ vl->values[0].counter = va_arg(ap, counter_t);
+ break;
+ case DS_TYPE_DERIVE:
+ vl->values[0].derive = va_arg(ap, derive_t);
+ break;
+ default:
+ ERROR("plugin_dispatch_multivalue: given store_type is incorrect.");
+ failed++;
+ }
+
+ status = plugin_write_enqueue(vl);
+ if (status != 0)
+ failed++;
+ }
+ va_end(ap);
+
+ plugin_value_list_free(vl);
+ return (failed);
} /* }}} int plugin_dispatch_multivalue */
-int plugin_dispatch_notification (const notification_t *notif)
-{
- llentry_t *le;
- /* Possible TODO: Add flap detection here */
-
- DEBUG ("plugin_dispatch_notification: severity = %i; message = %s; "
- "time = %.3f; host = %s;",
- notif->severity, notif->message,
- CDTIME_T_TO_DOUBLE (notif->time), notif->host);
-
- /* Nobody cares for notifications */
- if (list_notification == NULL)
- return (-1);
-
- le = llist_head (list_notification);
- while (le != NULL)
- {
- callback_func_t *cf;
- plugin_notification_cb callback;
- int status;
-
- /* do not switch plugin context; rather keep the context
- * (interval) information of the calling plugin */
-
- cf = le->value;
- callback = cf->cf_callback;
- status = (*callback) (notif, &cf->cf_udata);
- if (status != 0)
- {
- WARNING ("plugin_dispatch_notification: Notification "
- "callback %s returned %i.",
- le->key, status);
- }
-
- le = le->next;
- }
-
- return (0);
+int plugin_dispatch_notification(const notification_t *notif) {
+ llentry_t *le;
+ /* Possible TODO: Add flap detection here */
+
+ DEBUG("plugin_dispatch_notification: severity = %i; message = %s; "
+ "time = %.3f; host = %s;",
+ notif->severity, notif->message, CDTIME_T_TO_DOUBLE(notif->time),
+ notif->host);
+
+ /* Nobody cares for notifications */
+ if (list_notification == NULL)
+ return (-1);
+
+ le = llist_head(list_notification);
+ while (le != NULL) {
+ callback_func_t *cf;
+ plugin_notification_cb callback;
+ int status;
+
+ /* do not switch plugin context; rather keep the context
+ * (interval) information of the calling plugin */
+
+ cf = le->value;
+ callback = cf->cf_callback;
+ status = (*callback)(notif, &cf->cf_udata);
+ if (status != 0) {
+ WARNING("plugin_dispatch_notification: Notification "
+ "callback %s returned %i.",
+ le->key, status);
+ }
+
+ le = le->next;
+ }
+
+ return (0);
} /* int plugin_dispatch_notification */
-void plugin_log (int level, const char *format, ...)
-{
- char msg[1024];
- va_list ap;
- llentry_t *le;
+void plugin_log(int level, const char *format, ...) {
+ char msg[1024];
+ va_list ap;
+ llentry_t *le;
#if !COLLECT_DEBUG
- if (level >= LOG_DEBUG)
- return;
+ if (level >= LOG_DEBUG)
+ return;
#endif
- va_start (ap, format);
- vsnprintf (msg, sizeof (msg), format, ap);
- msg[sizeof (msg) - 1] = '\0';
- va_end (ap);
+ va_start(ap, format);
+ vsnprintf(msg, sizeof(msg), format, ap);
+ msg[sizeof(msg) - 1] = '\0';
+ va_end(ap);
- if (list_log == NULL)
- {
- fprintf (stderr, "%s\n", msg);
- return;
- }
+ if (list_log == NULL) {
+ fprintf(stderr, "%s\n", msg);
+ return;
+ }
- le = llist_head (list_log);
- while (le != NULL)
- {
- callback_func_t *cf;
- plugin_log_cb callback;
+ le = llist_head(list_log);
+ while (le != NULL) {
+ callback_func_t *cf;
+ plugin_log_cb callback;
- cf = le->value;
- callback = cf->cf_callback;
+ cf = le->value;
+ callback = cf->cf_callback;
- /* do not switch plugin context; rather keep the context
- * (interval) information of the calling plugin */
+ /* do not switch plugin context; rather keep the context
+ * (interval) information of the calling plugin */
- (*callback) (level, msg, &cf->cf_udata);
+ (*callback)(level, msg, &cf->cf_udata);
- le = le->next;
- }
+ le = le->next;
+ }
} /* void plugin_log */
-int parse_log_severity (const char *severity)
-{
- int log_level = -1;
-
- if ((0 == strcasecmp (severity, "emerg"))
- || (0 == strcasecmp (severity, "alert"))
- || (0 == strcasecmp (severity, "crit"))
- || (0 == strcasecmp (severity, "err")))
- log_level = LOG_ERR;
- else if (0 == strcasecmp (severity, "warning"))
- log_level = LOG_WARNING;
- else if (0 == strcasecmp (severity, "notice"))
- log_level = LOG_NOTICE;
- else if (0 == strcasecmp (severity, "info"))
- log_level = LOG_INFO;
+int parse_log_severity(const char *severity) {
+ int log_level = -1;
+
+ if ((0 == strcasecmp(severity, "emerg")) ||
+ (0 == strcasecmp(severity, "alert")) ||
+ (0 == strcasecmp(severity, "crit")) || (0 == strcasecmp(severity, "err")))
+ log_level = LOG_ERR;
+ else if (0 == strcasecmp(severity, "warning"))
+ log_level = LOG_WARNING;
+ else if (0 == strcasecmp(severity, "notice"))
+ log_level = LOG_NOTICE;
+ else if (0 == strcasecmp(severity, "info"))
+ log_level = LOG_INFO;
#if COLLECT_DEBUG
- else if (0 == strcasecmp (severity, "debug"))
- log_level = LOG_DEBUG;
+ else if (0 == strcasecmp(severity, "debug"))
+ log_level = LOG_DEBUG;
#endif /* COLLECT_DEBUG */
- return (log_level);
+ return (log_level);
} /* int parse_log_severity */
-int parse_notif_severity (const char *severity)
-{
- int notif_severity = -1;
+int parse_notif_severity(const char *severity) {
+ int notif_severity = -1;
- if (strcasecmp (severity, "FAILURE") == 0)
- notif_severity = NOTIF_FAILURE;
- else if (strcmp (severity, "OKAY") == 0)
- notif_severity = NOTIF_OKAY;
- else if ((strcmp (severity, "WARNING") == 0)
- || (strcmp (severity, "WARN") == 0))
- notif_severity = NOTIF_WARNING;
+ if (strcasecmp(severity, "FAILURE") == 0)
+ notif_severity = NOTIF_FAILURE;
+ else if (strcmp(severity, "OKAY") == 0)
+ notif_severity = NOTIF_OKAY;
+ else if ((strcmp(severity, "WARNING") == 0) ||
+ (strcmp(severity, "WARN") == 0))
+ notif_severity = NOTIF_WARNING;
- return (notif_severity);
+ return (notif_severity);
} /* int parse_notif_severity */
-const data_set_t *plugin_get_ds (const char *name)
-{
- data_set_t *ds;
+const data_set_t *plugin_get_ds(const char *name) {
+ data_set_t *ds;
- if (data_sets == NULL)
- {
- ERROR ("plugin_get_ds: No data sets are defined yet.");
- return (NULL);
- }
+ if (data_sets == NULL) {
+ ERROR("plugin_get_ds: No data sets are defined yet.");
+ return (NULL);
+ }
- if (c_avl_get (data_sets, name, (void *) &ds) != 0)
- {
- DEBUG ("No such dataset registered: %s", name);
- return (NULL);
- }
+ if (c_avl_get(data_sets, name, (void *)&ds) != 0) {
+ DEBUG("No such dataset registered: %s", name);
+ return (NULL);
+ }
- return (ds);
+ return (ds);
} /* data_set_t *plugin_get_ds */
-static int plugin_notification_meta_add (notification_t *n,
- const char *name,
- enum notification_meta_type_e type,
- const void *value)
-{
+static int plugin_notification_meta_add(notification_t *n, const char *name,
+ enum notification_meta_type_e type,
+ const void *value) {
notification_meta_t *meta;
notification_meta_t *tail;
- if ((n == NULL) || (name == NULL) || (value == NULL))
- {
- ERROR ("plugin_notification_meta_add: A pointer is NULL!");
+ if ((n == NULL) || (name == NULL) || (value == NULL)) {
+ ERROR("plugin_notification_meta_add: A pointer is NULL!");
return (-1);
}
- meta = calloc (1, sizeof (*meta));
- if (meta == NULL)
- {
- ERROR ("plugin_notification_meta_add: calloc failed.");
+ meta = calloc(1, sizeof(*meta));
+ if (meta == NULL) {
+ ERROR("plugin_notification_meta_add: calloc failed.");
return (-1);
}
- sstrncpy (meta->name, name, sizeof (meta->name));
+ sstrncpy(meta->name, name, sizeof(meta->name));
meta->type = type;
- switch (type)
- {
- case NM_TYPE_STRING:
- {
- meta->nm_value.nm_string = strdup ((const char *) value);
- if (meta->nm_value.nm_string == NULL)
- {
- ERROR ("plugin_notification_meta_add: strdup failed.");
- sfree (meta);
- return (-1);
- }
- break;
- }
- case NM_TYPE_SIGNED_INT:
- {
- meta->nm_value.nm_signed_int = *((int64_t *) value);
- break;
- }
- case NM_TYPE_UNSIGNED_INT:
- {
- meta->nm_value.nm_unsigned_int = *((uint64_t *) value);
- break;
- }
- case NM_TYPE_DOUBLE:
- {
- meta->nm_value.nm_double = *((double *) value);
- break;
- }
- case NM_TYPE_BOOLEAN:
- {
- meta->nm_value.nm_boolean = *((_Bool *) value);
- break;
- }
- default:
- {
- ERROR ("plugin_notification_meta_add: Unknown type: %i", type);
- sfree (meta);
+ switch (type) {
+ case NM_TYPE_STRING: {
+ meta->nm_value.nm_string = strdup((const char *)value);
+ if (meta->nm_value.nm_string == NULL) {
+ ERROR("plugin_notification_meta_add: strdup failed.");
+ sfree(meta);
return (-1);
}
+ break;
+ }
+ case NM_TYPE_SIGNED_INT: {
+ meta->nm_value.nm_signed_int = *((int64_t *)value);
+ break;
+ }
+ case NM_TYPE_UNSIGNED_INT: {
+ meta->nm_value.nm_unsigned_int = *((uint64_t *)value);
+ break;
+ }
+ case NM_TYPE_DOUBLE: {
+ meta->nm_value.nm_double = *((double *)value);
+ break;
+ }
+ case NM_TYPE_BOOLEAN: {
+ meta->nm_value.nm_boolean = *((_Bool *)value);
+ break;
+ }
+ default: {
+ ERROR("plugin_notification_meta_add: Unknown type: %i", type);
+ sfree(meta);
+ return (-1);
+ }
} /* switch (type) */
meta->next = NULL;
return (0);
} /* int plugin_notification_meta_add */
-int plugin_notification_meta_add_string (notification_t *n,
- const char *name,
- const char *value)
-{
- return (plugin_notification_meta_add (n, name, NM_TYPE_STRING, value));
+int plugin_notification_meta_add_string(notification_t *n, const char *name,
+ const char *value) {
+ return (plugin_notification_meta_add(n, name, NM_TYPE_STRING, value));
}
-int plugin_notification_meta_add_signed_int (notification_t *n,
- const char *name,
- int64_t value)
-{
- return (plugin_notification_meta_add (n, name, NM_TYPE_SIGNED_INT, &value));
+int plugin_notification_meta_add_signed_int(notification_t *n, const char *name,
+ int64_t value) {
+ return (plugin_notification_meta_add(n, name, NM_TYPE_SIGNED_INT, &value));
}
-int plugin_notification_meta_add_unsigned_int (notification_t *n,
- const char *name,
- uint64_t value)
-{
- return (plugin_notification_meta_add (n, name, NM_TYPE_UNSIGNED_INT, &value));
+int plugin_notification_meta_add_unsigned_int(notification_t *n,
+ const char *name,
+ uint64_t value) {
+ return (plugin_notification_meta_add(n, name, NM_TYPE_UNSIGNED_INT, &value));
}
-int plugin_notification_meta_add_double (notification_t *n,
- const char *name,
- double value)
-{
- return (plugin_notification_meta_add (n, name, NM_TYPE_DOUBLE, &value));
+int plugin_notification_meta_add_double(notification_t *n, const char *name,
+ double value) {
+ return (plugin_notification_meta_add(n, name, NM_TYPE_DOUBLE, &value));
}
-int plugin_notification_meta_add_boolean (notification_t *n,
- const char *name,
- _Bool value)
-{
- return (plugin_notification_meta_add (n, name, NM_TYPE_BOOLEAN, &value));
+int plugin_notification_meta_add_boolean(notification_t *n, const char *name,
+ _Bool value) {
+ return (plugin_notification_meta_add(n, name, NM_TYPE_BOOLEAN, &value));
}
-int plugin_notification_meta_copy (notification_t *dst,
- const notification_t *src)
-{
- assert (dst != NULL);
- assert (src != NULL);
- assert (dst != src);
- assert ((src->meta == NULL) || (src->meta != dst->meta));
+int plugin_notification_meta_copy(notification_t *dst,
+ const notification_t *src) {
+ assert(dst != NULL);
+ assert(src != NULL);
+ assert(dst != src);
+ assert((src->meta == NULL) || (src->meta != dst->meta));
- for (notification_meta_t *meta = src->meta; meta != NULL; meta = meta->next)
- {
+ for (notification_meta_t *meta = src->meta; meta != NULL; meta = meta->next) {
if (meta->type == NM_TYPE_STRING)
- plugin_notification_meta_add_string (dst, meta->name,
- meta->nm_value.nm_string);
+ plugin_notification_meta_add_string(dst, meta->name,
+ meta->nm_value.nm_string);
else if (meta->type == NM_TYPE_SIGNED_INT)
- plugin_notification_meta_add_signed_int (dst, meta->name,
- meta->nm_value.nm_signed_int);
+ plugin_notification_meta_add_signed_int(dst, meta->name,
+ meta->nm_value.nm_signed_int);
else if (meta->type == NM_TYPE_UNSIGNED_INT)
- plugin_notification_meta_add_unsigned_int (dst, meta->name,
- meta->nm_value.nm_unsigned_int);
+ plugin_notification_meta_add_unsigned_int(dst, meta->name,
+ meta->nm_value.nm_unsigned_int);
else if (meta->type == NM_TYPE_DOUBLE)
- plugin_notification_meta_add_double (dst, meta->name,
- meta->nm_value.nm_double);
+ plugin_notification_meta_add_double(dst, meta->name,
+ meta->nm_value.nm_double);
else if (meta->type == NM_TYPE_BOOLEAN)
- plugin_notification_meta_add_boolean (dst, meta->name,
- meta->nm_value.nm_boolean);
+ plugin_notification_meta_add_boolean(dst, meta->name,
+ meta->nm_value.nm_boolean);
}
return (0);
} /* int plugin_notification_meta_copy */
-int plugin_notification_meta_free (notification_meta_t *n)
-{
+int plugin_notification_meta_free(notification_meta_t *n) {
notification_meta_t *this;
notification_meta_t *next;
- if (n == NULL)
- {
- ERROR ("plugin_notification_meta_free: n == NULL!");
+ if (n == NULL) {
+ ERROR("plugin_notification_meta_free: n == NULL!");
return (-1);
}
this = n;
- while (this != NULL)
- {
+ while (this != NULL) {
next = this->next;
- if (this->type == NM_TYPE_STRING)
- {
+ if (this->type == NM_TYPE_STRING) {
/* Assign to a temporary variable to work around nm_string's const
* modifier. */
- void *tmp = (void *) this->nm_value.nm_string;
+ void *tmp = (void *)this->nm_value.nm_string;
- sfree (tmp);
+ sfree(tmp);
this->nm_value.nm_string = NULL;
}
- sfree (this);
+ sfree(this);
this = next;
}
return (0);
} /* int plugin_notification_meta_free */
-static void plugin_ctx_destructor (void *ctx)
-{
- sfree (ctx);
+static void plugin_ctx_destructor(void *ctx) {
+ sfree(ctx);
} /* void plugin_ctx_destructor */
-static plugin_ctx_t ctx_init = { /* interval = */ 0 };
+static plugin_ctx_t ctx_init = {/* interval = */ 0};
-static plugin_ctx_t *plugin_ctx_create (void)
-{
- plugin_ctx_t *ctx;
-
- ctx = malloc (sizeof (*ctx));
- if (ctx == NULL) {
- char errbuf[1024];
- ERROR ("Failed to allocate plugin context: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return NULL;
- }
-
- *ctx = ctx_init;
- assert (plugin_ctx_key_initialized);
- pthread_setspecific (plugin_ctx_key, ctx);
- DEBUG("Created new plugin context.");
- return (ctx);
+static plugin_ctx_t *plugin_ctx_create(void) {
+ plugin_ctx_t *ctx;
+
+ ctx = malloc(sizeof(*ctx));
+ if (ctx == NULL) {
+ char errbuf[1024];
+ ERROR("Failed to allocate plugin context: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ return NULL;
+ }
+
+ *ctx = ctx_init;
+ assert(plugin_ctx_key_initialized);
+ pthread_setspecific(plugin_ctx_key, ctx);
+ DEBUG("Created new plugin context.");
+ return (ctx);
} /* int plugin_ctx_create */
-void plugin_init_ctx (void)
-{
- pthread_key_create (&plugin_ctx_key, plugin_ctx_destructor);
- plugin_ctx_key_initialized = 1;
+void plugin_init_ctx(void) {
+ pthread_key_create(&plugin_ctx_key, plugin_ctx_destructor);
+ plugin_ctx_key_initialized = 1;
} /* void plugin_init_ctx */
-plugin_ctx_t plugin_get_ctx (void)
-{
- plugin_ctx_t *ctx;
+plugin_ctx_t plugin_get_ctx(void) {
+ plugin_ctx_t *ctx;
- assert (plugin_ctx_key_initialized);
- ctx = pthread_getspecific (plugin_ctx_key);
+ assert(plugin_ctx_key_initialized);
+ ctx = pthread_getspecific(plugin_ctx_key);
- if (ctx == NULL) {
- ctx = plugin_ctx_create ();
- /* this must no happen -- exit() instead? */
- if (ctx == NULL)
- return ctx_init;
- }
+ if (ctx == NULL) {
+ ctx = plugin_ctx_create();
+ /* this must no happen -- exit() instead? */
+ if (ctx == NULL)
+ return ctx_init;
+ }
- return (*ctx);
+ return (*ctx);
} /* plugin_ctx_t plugin_get_ctx */
-plugin_ctx_t plugin_set_ctx (plugin_ctx_t ctx)
-{
- plugin_ctx_t *c;
- plugin_ctx_t old;
+plugin_ctx_t plugin_set_ctx(plugin_ctx_t ctx) {
+ plugin_ctx_t *c;
+ plugin_ctx_t old;
- assert (plugin_ctx_key_initialized);
- c = pthread_getspecific (plugin_ctx_key);
+ assert(plugin_ctx_key_initialized);
+ c = pthread_getspecific(plugin_ctx_key);
- if (c == NULL) {
- c = plugin_ctx_create ();
- /* this must no happen -- exit() instead? */
- if (c == NULL)
- return ctx_init;
- }
+ if (c == NULL) {
+ c = plugin_ctx_create();
+ /* this must no happen -- exit() instead? */
+ if (c == NULL)
+ return ctx_init;
+ }
- old = *c;
- *c = ctx;
+ old = *c;
+ *c = ctx;
- return (old);
+ return (old);
} /* void plugin_set_ctx */
-cdtime_t plugin_get_interval (void)
-{
- cdtime_t interval;
+cdtime_t plugin_get_interval(void) {
+ cdtime_t interval;
- interval = plugin_get_ctx().interval;
- if (interval > 0)
- return interval;
+ interval = plugin_get_ctx().interval;
+ if (interval > 0)
+ return interval;
- return cf_get_default_interval ();
+ return cf_get_default_interval();
} /* cdtime_t plugin_get_interval */
typedef struct {
- plugin_ctx_t ctx;
- void *(*start_routine) (void *);
- void *arg;
+ plugin_ctx_t ctx;
+ void *(*start_routine)(void *);
+ void *arg;
} plugin_thread_t;
-static void *plugin_thread_start (void *arg)
-{
- plugin_thread_t *plugin_thread = arg;
+static void *plugin_thread_start(void *arg) {
+ plugin_thread_t *plugin_thread = arg;
- void *(*start_routine) (void *) = plugin_thread->start_routine;
- void *plugin_arg = plugin_thread->arg;
+ void *(*start_routine)(void *) = plugin_thread->start_routine;
+ void *plugin_arg = plugin_thread->arg;
- plugin_set_ctx (plugin_thread->ctx);
+ plugin_set_ctx(plugin_thread->ctx);
- sfree (plugin_thread);
+ sfree(plugin_thread);
- return start_routine (plugin_arg);
+ return start_routine(plugin_arg);
} /* void *plugin_thread_start */
-int plugin_thread_create (pthread_t *thread, const pthread_attr_t *attr,
- void *(*start_routine) (void *), void *arg, char const *name)
-{
- plugin_thread_t *plugin_thread;
+int plugin_thread_create(pthread_t *thread, const pthread_attr_t *attr,
+ void *(*start_routine)(void *), void *arg,
+ char const *name) {
+ plugin_thread_t *plugin_thread;
- plugin_thread = malloc (sizeof (*plugin_thread));
- if (plugin_thread == NULL)
- return ENOMEM;
+ plugin_thread = malloc(sizeof(*plugin_thread));
+ if (plugin_thread == NULL)
+ return ENOMEM;
- plugin_thread->ctx = plugin_get_ctx ();
- plugin_thread->start_routine = start_routine;
- plugin_thread->arg = arg;
+ plugin_thread->ctx = plugin_get_ctx();
+ plugin_thread->start_routine = start_routine;
+ plugin_thread->arg = arg;
- int ret = pthread_create (thread, attr,
- plugin_thread_start, plugin_thread);
- if (ret != 0)
- {
- sfree (plugin_thread);
- return ret;
- }
+ int ret = pthread_create(thread, attr, plugin_thread_start, plugin_thread);
+ if (ret != 0) {
+ sfree(plugin_thread);
+ return ret;
+ }
- if (name != NULL)
- set_thread_name (*thread, name);
+ if (name != NULL)
+ set_thread_name(*thread, name);
- return 0;
+ return 0;
} /* int plugin_thread_create */
/* vim: set sw=8 ts=8 noet fdm=marker : */
projects / collectd.git / blobdiff