**/
#include "collectd.h"
+
#include "common.h"
#include "plugin.h"
#include "configfile.h"
{
ERROR ("plugin: register_callback: "
"llentry_create failed.");
- free (key);
+ sfree (key);
destroy_callback (cf);
return (-1);
}
{
char *str;
int len;
- llentry_t *le;
int i;
+ llentry_t *le;
int n;
char **keys;
*str = '\0';
strjoin(str, len, keys, n, "', '");
INFO("%s ['%s']", comment, str);
- free(str);
+ sfree (str);
}
- free(keys);
+ sfree (keys);
} /* }}} void log_list_callbacks */
static int create_register_callback (llist_t **list, /* {{{ */
{
callback_func_t *cf;
- cf = (callback_func_t *) malloc (sizeof (*cf));
+ cf = calloc (1, sizeof (*cf));
if (cf == NULL)
{
- ERROR ("plugin: create_register_callback: malloc failed.");
+ ERROR ("plugin: create_register_callback: calloc failed.");
return (-1);
}
- memset (cf, 0, sizeof (*cf));
cf->cf_callback = callback;
if (ud == NULL)
{
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;
DEBUG ("plugin_read_thread: Handling `%s'.", rf->rf_name);
+ start = cdtime ();
+
old_ctx = plugin_set_ctx (rf->rf_ctx);
if (rf_type == RF_SIMPLE)
/* 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.",
+ "`%s' plugin is %.3f seconds.",
rf->rf_name,
CDTIME_T_TO_DOUBLE (rf->rf_effective_interval));
rf->rf_next_read = now;
}
- DEBUG ("plugin_read_thread: Next read of the %s plugin at %.3f.",
+ DEBUG ("plugin_read_thread: Next read of the `%s' plugin at %.3f.",
rf->rf_name,
CDTIME_T_TO_DOUBLE (rf->rf_next_read));
static void start_read_threads (int num)
{
- int i;
-
if (read_threads != NULL)
return;
}
read_threads_num = 0;
- for (i = 0; i < num; i++)
+ for (int i = 0; i < num; i++)
{
if (pthread_create (read_threads + read_threads_num, NULL,
plugin_read_thread, NULL) == 0)
static void stop_read_threads (void)
{
- int i;
-
if (read_threads == NULL)
return;
pthread_cond_broadcast (&read_cond);
pthread_mutex_unlock (&read_lock);
- for (i = 0; i < read_threads_num; i++)
+ for (int i = 0; i < read_threads_num; i++)
{
if (pthread_join (read_threads[i], NULL) != 0)
{
static void start_write_threads (size_t num) /* {{{ */
{
- size_t i;
-
if (write_threads != NULL)
return;
}
write_threads_num = 0;
- for (i = 0; i < num; i++)
+ for (size_t i = 0; i < num; i++)
{
int status;
*/
void plugin_set_dir (const char *dir)
{
- if (plugindir != NULL)
- free (plugindir);
+ sfree (plugindir);
if (dir == NULL)
- plugindir = NULL;
- else if ((plugindir = strdup (dir)) == NULL)
{
- char errbuf[1024];
- ERROR ("strdup failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
+ plugindir = NULL;
+ return;
}
+
+ plugindir = strdup (dir);
+ if (plugindir == NULL)
+ ERROR ("plugin_set_dir: strdup(\"%s\") failed", dir);
}
static _Bool plugin_is_loaded (char const *name)
int status;
if (plugins_loaded == NULL)
- plugins_loaded = c_avl_create ((void *) strcasecmp);
+ 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);
}
-static void plugin_free_loaded ()
+static void plugin_free_loaded (void)
{
void *key;
void *value;
read_func_t *rf;
int status;
- rf = malloc (sizeof (*rf));
+ rf = calloc (1, sizeof (*rf));
if (rf == NULL)
{
- ERROR ("plugin_register_read: malloc failed.");
+ ERROR ("plugin_register_read: calloc failed.");
return (ENOMEM);
}
- memset (rf, 0, sizeof (read_func_t));
rf->rf_callback = (void *) callback;
rf->rf_udata.data = NULL;
rf->rf_udata.free_func = NULL;
read_func_t *rf;
int status;
- rf = malloc (sizeof (*rf));
+ rf = calloc (1,sizeof (*rf));
if (rf == NULL)
{
- ERROR ("plugin_register_complex_read: malloc failed.");
+ ERROR ("plugin_register_complex_read: calloc failed.");
return (ENOMEM);
}
- memset (rf, 0, sizeof (read_func_t));
rf->rf_callback = (void *) callback;
if (group != NULL)
sstrncpy (rf->rf_group, group, sizeof (rf->rf_group));
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)
{
- char *flush_prefix = "flush/";
+ 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);
- flush_name = malloc (sizeof(char) * (name_size + prefix_size + 1));
+ flush_name = malloc (name_size + prefix_size + 1);
if (flush_name == NULL)
{
ERROR ("plugin_flush_callback_name: malloc failed.");
if (ctx.flush_interval != 0)
{
char *flush_name;
- user_data_t ud;
flush_callback_t *cb;
flush_name = plugin_flush_callback_name (name);
if (flush_name == NULL)
return (-1);
- cb = malloc(sizeof(flush_callback_t));
+ cb = malloc(sizeof (*cb));
if (cb == NULL)
{
ERROR ("plugin_register_flush: malloc failed.");
- sfree(flush_name);
+ sfree (flush_name);
return (-1);
}
if (cb->name == NULL)
{
ERROR ("plugin_register_flush: strdup failed.");
- sfree(cb);
- sfree(flush_name);
+ sfree (cb);
+ sfree (flush_name);
return (-1);
}
cb->timeout = ctx.flush_timeout;
- ud.data = cb;
- ud.free_func = plugin_flush_timeout_callback_free;
+ ud->data = cb;
+ ud->free_func = plugin_flush_timeout_callback_free;
status = plugin_register_complex_read (
/* group = */ "flush",
/* name = */ flush_name,
/* callback = */ plugin_flush_timeout_callback,
/* interval = */ ctx.flush_interval,
- /* user data = */ &ud);
+ /* user data = */ ud);
- sfree(flush_name);
+ sfree (flush_name);
if (status != 0)
{
- sfree(cb->name);
- sfree(cb);
+ sfree (cb->name);
+ sfree (cb);
return status;
}
}
int plugin_register_data_set (const data_set_t *ds)
{
data_set_t *ds_copy;
- size_t i;
if ((data_sets != NULL)
&& (c_avl_get (data_sets, ds->type, NULL) == 0))
return (-1);
}
- ds_copy = (data_set_t *) malloc (sizeof (data_set_t));
+ ds_copy = malloc (sizeof (*ds_copy));
if (ds_copy == NULL)
return (-1);
memcpy(ds_copy, ds, sizeof (data_set_t));
- ds_copy->ds = (data_source_t *) malloc (sizeof (data_source_t)
+ ds_copy->ds = malloc (sizeof (*ds_copy->ds)
* ds->ds_num);
if (ds_copy->ds == NULL)
{
- free (ds_copy);
+ sfree (ds_copy);
return (-1);
}
- for (i = 0; i < ds->ds_num; i++)
+ 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));
if (flush_name != NULL)
{
plugin_unregister_read(flush_name);
- sfree(flush_name);
+ sfree (flush_name);
}
}
return (plugin_unregister (list_notification, name));
}
-void plugin_init_all (void)
+int plugin_init_all (void)
{
char const *chain_name;
- long write_threads_num;
llentry_t *le;
int status;
+ int ret = 0;
/* Init the value cache */
uc_init ();
write_threads_num = 5;
}
- start_write_threads ((size_t) write_threads_num);
-
if ((list_init == NULL) && (read_heap == NULL))
- return;
+ return ret;
/* Calling all init callbacks before checking if read callbacks
* are available allows the init callbacks to register the read
* 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);
if (num != -1)
start_read_threads ((num > 0) ? num : 5);
}
+ return ret;
} /* void plugin_init_all */
/* TODO: Rename this function. */
return (0);
} /* int plugin_flush */
-void plugin_shutdown_all (void)
+int plugin_shutdown_all (void)
{
llentry_t *le;
-
- stop_read_threads ();
+ 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;
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);
* after callback returns. */
le = le->next;
- (*callback) ();
+ if ((*callback) () != 0)
+ ret = -1;
plugin_set_ctx (old_ctx);
}
- stop_write_threads ();
-
/* 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
plugin_free_loaded ();
plugin_free_data_sets ();
+ return (ret);
} /* void plugin_shutdown_all */
int plugin_dispatch_missing (const value_list_t *vl) /* {{{ */
int free_meta_data = 0;
- if ((vl == NULL) || (vl->type[0] == 0)
- || (vl->values == NULL) || (vl->values_len < 1))
+ assert(vl);
+ assert(vl->plugin);
+
+ if (vl->type[0] == 0 || vl->values == NULL || vl->values_len < 1)
{
ERROR ("plugin_dispatch_values: Invalid value list "
"from plugin %s.", vl->plugin);
* don't get confused.. */
if (saved_values != NULL)
{
- free (vl->values);
+ sfree (vl->values);
vl->values = saved_values;
vl->values_len = saved_values_len;
}
* confused.. */
if (saved_values != NULL)
{
- free (vl->values);
+ sfree (vl->values);
vl->values = saved_values;
vl->values_len = saved_values_len;
}
assert (template->values_len == 1);
- /* Calculate sum for Gauge to calculate percent if needed */
+ /* Calculate sum for Gauge to calculate percent if needed */
if (DS_TYPE_GAUGE == store_type) {
va_start (ap, store_type);
while (42)
case DS_TYPE_GAUGE:
vl->values[0].gauge = va_arg (ap, gauge_t);
if (store_percentage)
- vl->values[0].gauge *= 100.0 / sum;
+ vl->values[0].gauge *= sum ? (100.0 / sum) : NAN;
break;
case DS_TYPE_ABSOLUTE:
vl->values[0].absolute = va_arg (ap, absolute_t);
return (-1);
}
- meta = (notification_meta_t *) malloc (sizeof (notification_meta_t));
+ meta = calloc (1, sizeof (*meta));
if (meta == NULL)
{
- ERROR ("plugin_notification_meta_add: malloc failed.");
+ ERROR ("plugin_notification_meta_add: calloc failed.");
return (-1);
}
- memset (meta, 0, sizeof (notification_meta_t));
sstrncpy (meta->name, name, sizeof (meta->name));
meta->type = type;
int plugin_notification_meta_copy (notification_t *dst,
const notification_t *src)
{
- notification_meta_t *meta;
-
assert (dst != NULL);
assert (src != NULL);
assert (dst != src);
assert ((src->meta == NULL) || (src->meta != dst->meta));
- for (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,
if (this->type == NM_TYPE_STRING)
{
- free ((char *)this->nm_value.nm_string);
+ /* Assign to a temporary variable to work around nm_string's const
+ * modifier. */
+ void *tmp = (void *) this->nm_value.nm_string;
+
+ sfree (tmp);
this->nm_value.nm_string = NULL;
}
sfree (this);
plugin_set_ctx (plugin_thread->ctx);
- free (plugin_thread);
+ sfree (plugin_thread);
return start_routine (plugin_arg);
} /* void *plugin_thread_start */
projects / collectd.git / blobdiff