#include <yajl/yajl_version.h>
#endif
#ifdef HAVE_SYS_CAPABILITY_H
-# include <sys/capability.h>
+#include <sys/capability.h>
#endif
+#include <inttypes.h>
#include <limits.h>
+#include <math.h>
#include <poll.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/un.h>
#include <unistd.h>
-#include <math.h>
-#include <inttypes.h>
#define RETRY_AVGCOUNT -1
#if defined(YAJL_MAJOR) && (YAJL_MAJOR > 1)
-# define HAVE_YAJL_V2 1
+#define HAVE_YAJL_V2 1
#endif
-#define RETRY_ON_EINTR(ret, expr) \
- while(1) { \
- ret = expr; \
- if(ret >= 0) \
- break; \
- ret = -errno; \
- if(ret != -EINTR) \
- break; \
- }
+#define RETRY_ON_EINTR(ret, expr) \
+ while (1) { \
+ ret = expr; \
+ if (ret >= 0) \
+ break; \
+ ret = -errno; \
+ if (ret != -EINTR) \
+ break; \
+ }
/** Timeout interval in seconds */
#define CEPH_TIMEOUT_INTERVAL 1
/** Maximum path length for a UNIX domain socket on this system */
-#define UNIX_DOMAIN_SOCK_PATH_MAX (sizeof(((struct sockaddr_un*)0)->sun_path))
+#define UNIX_DOMAIN_SOCK_PATH_MAX (sizeof(((struct sockaddr_un *)0)->sun_path))
/** Yajl callback returns */
#define CEPH_CB_CONTINUE 1
/** Number of types for ceph defined in types.db */
#define CEPH_DSET_TYPES_NUM 3
/** ceph types enum */
-enum ceph_dset_type_d
-{
- DSET_LATENCY = 0,
- DSET_BYTES = 1,
- DSET_RATE = 2,
- DSET_TYPE_UNFOUND = 1000
+enum ceph_dset_type_d {
+ DSET_LATENCY = 0,
+ DSET_BYTES = 1,
+ DSET_RATE = 2,
+ DSET_TYPE_UNFOUND = 1000
};
/** Valid types for ceph defined in types.db */
-static const char * const ceph_dset_types [CEPH_DSET_TYPES_NUM] =
- {"ceph_latency", "ceph_bytes", "ceph_rate"};
+static const char *const ceph_dset_types[CEPH_DSET_TYPES_NUM] = {
+ "ceph_latency", "ceph_bytes", "ceph_rate"};
/******* ceph_daemon *******/
-struct ceph_daemon
-{
- /** Version of the admin_socket interface */
- uint32_t version;
- /** daemon name **/
- char name[DATA_MAX_NAME_LEN];
-
- /** Path to the socket that we use to talk to the ceph daemon */
- char asok_path[UNIX_DOMAIN_SOCK_PATH_MAX];
-
- /** Number of counters */
- int ds_num;
- /** Track ds types */
- uint32_t *ds_types;
- /** Track ds names to match with types */
- char **ds_names;
-
- /**
- * Keep track of last data for latency values so we can calculate rate
- * since last poll.
- */
- struct last_data **last_poll_data;
- /** index of last poll data */
- int last_idx;
+struct ceph_daemon {
+ /** Version of the admin_socket interface */
+ uint32_t version;
+ /** daemon name **/
+ char name[DATA_MAX_NAME_LEN];
+
+ /** Path to the socket that we use to talk to the ceph daemon */
+ char asok_path[UNIX_DOMAIN_SOCK_PATH_MAX];
+
+ /** Number of counters */
+ int ds_num;
+ /** Track ds types */
+ uint32_t *ds_types;
+ /** Track ds names to match with types */
+ char **ds_names;
+
+ /**
+ * Keep track of last data for latency values so we can calculate rate
+ * since last poll.
+ */
+ struct last_data **last_poll_data;
+ /** index of last poll data */
+ int last_idx;
};
/******* JSON parsing *******/
-typedef int (*node_handler_t)(void *, const char*, const char*);
+typedef int (*node_handler_t)(void *, const char *, const char *);
/** Track state and handler while parsing JSON */
-struct yajl_struct
-{
- node_handler_t handler;
- void * handler_arg;
-
- char *key;
- char *stack[YAJL_MAX_DEPTH];
- size_t depth;
+struct yajl_struct {
+ node_handler_t handler;
+ void *handler_arg;
+
+ char *key;
+ char *stack[YAJL_MAX_DEPTH];
+ size_t depth;
};
typedef struct yajl_struct yajl_struct;
-enum perfcounter_type_d
-{
- PERFCOUNTER_LATENCY = 0x4, PERFCOUNTER_DERIVE = 0x8,
+enum perfcounter_type_d {
+ PERFCOUNTER_LATENCY = 0x4,
+ PERFCOUNTER_DERIVE = 0x8,
};
/** Give user option to use default (long run = since daemon started) avg */
/**
* A set of data that we build up in memory while parsing the JSON.
*/
-struct values_tmp
-{
- /** ceph daemon we are processing data for*/
- struct ceph_daemon *d;
- /** track avgcount across counters for avgcount/sum latency pairs */
- uint64_t avgcount;
- /** current index of counters - used to get type of counter */
- int index;
- /** do we already have an avgcount for latency pair */
- int avgcount_exists;
- /**
- * similar to index, but current index of latency type counters -
- * used to get last poll data of counter
- */
- int latency_index;
- /**
- * values list - maintain across counters since
- * host/plugin/plugin instance are always the same
- */
- value_list_t vlist;
+struct values_tmp {
+ /** ceph daemon we are processing data for*/
+ struct ceph_daemon *d;
+ /** track avgcount across counters for avgcount/sum latency pairs */
+ uint64_t avgcount;
+ /** current index of counters - used to get type of counter */
+ int index;
+ /** do we already have an avgcount for latency pair */
+ int avgcount_exists;
+ /**
+ * similar to index, but current index of latency type counters -
+ * used to get last poll data of counter
+ */
+ int latency_index;
+ /**
+ * values list - maintain across counters since
+ * host/plugin/plugin instance are always the same
+ */
+ value_list_t vlist;
};
/**
* A set of count/sum pairs to keep track of latency types and get difference
* between this poll data and last poll data.
*/
-struct last_data
-{
- char ds_name[DATA_MAX_NAME_LEN];
- double last_sum;
- uint64_t last_count;
+struct last_data {
+ char ds_name[DATA_MAX_NAME_LEN];
+ double last_sum;
+ uint64_t last_count;
};
/******* network I/O *******/
-enum cstate_t
-{
- CSTATE_UNCONNECTED = 0,
- CSTATE_WRITE_REQUEST,
- CSTATE_READ_VERSION,
- CSTATE_READ_AMT,
- CSTATE_READ_JSON,
+enum cstate_t {
+ CSTATE_UNCONNECTED = 0,
+ CSTATE_WRITE_REQUEST,
+ CSTATE_READ_VERSION,
+ CSTATE_READ_AMT,
+ CSTATE_READ_JSON,
};
-enum request_type_t
-{
- ASOK_REQ_VERSION = 0,
- ASOK_REQ_DATA = 1,
- ASOK_REQ_SCHEMA = 2,
- ASOK_REQ_NONE = 1000,
+enum request_type_t {
+ ASOK_REQ_VERSION = 0,
+ ASOK_REQ_DATA = 1,
+ ASOK_REQ_SCHEMA = 2,
+ ASOK_REQ_NONE = 1000,
};
-struct cconn
-{
- /** The Ceph daemon that we're talking to */
- struct ceph_daemon *d;
+struct cconn {
+ /** The Ceph daemon that we're talking to */
+ struct ceph_daemon *d;
- /** Request type */
- uint32_t request_type;
+ /** Request type */
+ uint32_t request_type;
- /** The connection state */
- enum cstate_t state;
+ /** The connection state */
+ enum cstate_t state;
- /** The socket we use to talk to this daemon */
- int asok;
+ /** The socket we use to talk to this daemon */
+ int asok;
- /** The amount of data remaining to read / write. */
- uint32_t amt;
+ /** The amount of data remaining to read / write. */
+ uint32_t amt;
- /** Length of the JSON to read */
- uint32_t json_len;
+ /** Length of the JSON to read */
+ uint32_t json_len;
- /** Buffer containing JSON data */
- unsigned char *json;
+ /** Buffer containing JSON data */
+ unsigned char *json;
- /** Keep data important to yajl processing */
- struct yajl_struct yajl;
+ /** Keep data important to yajl processing */
+ struct yajl_struct yajl;
};
-static int ceph_cb_null(void *ctx)
-{
- return CEPH_CB_CONTINUE;
-}
-
-static int ceph_cb_boolean(void *ctx, int bool_val)
-{
- return CEPH_CB_CONTINUE;
-}
+static int ceph_cb_null(void *ctx) { return CEPH_CB_CONTINUE; }
+
+static int ceph_cb_boolean(void *ctx, int bool_val) { return CEPH_CB_CONTINUE; }
+
+#define BUFFER_ADD(dest, src) \
+ do { \
+ size_t dest_size = sizeof(dest); \
+ size_t dest_len = strlen(dest); \
+ if (dest_size > dest_len) { \
+ sstrncpy((dest) + dest_len, (src), dest_size - dest_len); \
+ } \
+ (dest)[dest_size - 1] = 0; \
+ } while (0)
+
+static int ceph_cb_number(void *ctx, const char *number_val,
+ yajl_len_t number_len) {
+ yajl_struct *state = (yajl_struct *)ctx;
+ char buffer[number_len + 1];
+ char key[2 * DATA_MAX_NAME_LEN] = {0};
+ _Bool latency_type = 0;
+ int status;
+
+ memcpy(buffer, number_val, number_len);
+ buffer[sizeof(buffer) - 1] = '\0';
+
+ for (size_t i = 0; i < state->depth; i++) {
+ if (state->stack[i] == NULL)
+ continue;
+
+ if (strlen(key) != 0)
+ BUFFER_ADD(key, ".");
+ BUFFER_ADD(key, state->stack[i]);
+ }
-#define BUFFER_ADD(dest, src) do { \
- size_t dest_size = sizeof (dest); \
- size_t dest_len = strlen (dest); \
- if (dest_size > dest_len) { \
- sstrncpy ((dest) + dest_len, (src), dest_size - dest_len); \
- } \
- (dest)[dest_size - 1] = 0; \
-} while (0)
-
-static int
-ceph_cb_number(void *ctx, const char *number_val, yajl_len_t number_len)
-{
- yajl_struct *state = (yajl_struct*) ctx;
- char buffer[number_len+1];
- char key[2 * DATA_MAX_NAME_LEN] = { 0 };
- _Bool latency_type = 0;
- int status;
-
- memcpy(buffer, number_val, number_len);
- buffer[sizeof(buffer) - 1] = '\0';
-
- for (size_t i = 0; i < state->depth; i++)
- {
- if (state->stack[i] == NULL)
- continue;
-
- if (strlen (key) != 0)
- BUFFER_ADD (key, ".");
- BUFFER_ADD (key, state->stack[i]);
- }
+ /* Special case for latency metrics. */
+ if ((strcmp("avgcount", state->key) == 0) ||
+ (strcmp("sum", state->key) == 0)) {
+ latency_type = 1;
+
+ /* depth >= 2 => (stack[-1] != NULL && stack[-2] != NULL) */
+ assert((state->depth < 2) || ((state->stack[state->depth - 1] != NULL) &&
+ (state->stack[state->depth - 2] != NULL)));
+
+ /* Super-special case for filestore.journal_wr_bytes.avgcount: For
+ * some reason, Ceph schema encodes this as a count/sum pair while all
+ * other "Bytes" data (excluding used/capacity bytes for OSD space) uses
+ * a single "Derive" type. To spare further confusion, keep this KPI as
+ * the same type of other "Bytes". Instead of keeping an "average" or
+ * "rate", use the "sum" in the pair and assign that to the derive
+ * value. */
+ if (convert_special_metrics && (state->depth >= 2) &&
+ (strcmp("filestore", state->stack[state->depth - 2]) == 0) &&
+ (strcmp("journal_wr_bytes", state->stack[state->depth - 1]) == 0) &&
+ (strcmp("avgcount", state->key) == 0)) {
+ DEBUG("ceph plugin: Skipping avgcount for filestore.JournalWrBytes");
+ return CEPH_CB_CONTINUE;
+ }
+ } else /* not a latency type */
+ {
+ BUFFER_ADD(key, ".");
+ BUFFER_ADD(key, state->key);
+ }
- /* Special case for latency metrics. */
- if ((strcmp ("avgcount", state->key) == 0)
- || (strcmp ("sum", state->key) == 0))
- {
- latency_type = 1;
-
- /* depth >= 2 => (stack[-1] != NULL && stack[-2] != NULL) */
- assert ((state->depth < 2)
- || ((state->stack[state->depth - 1] != NULL)
- && (state->stack[state->depth - 2] != NULL)));
-
- /* Super-special case for filestore.journal_wr_bytes.avgcount: For
- * some reason, Ceph schema encodes this as a count/sum pair while all
- * other "Bytes" data (excluding used/capacity bytes for OSD space) uses
- * a single "Derive" type. To spare further confusion, keep this KPI as
- * the same type of other "Bytes". Instead of keeping an "average" or
- * "rate", use the "sum" in the pair and assign that to the derive
- * value. */
- if (convert_special_metrics && (state->depth >= 2)
- && (strcmp("filestore", state->stack[state->depth - 2]) == 0)
- && (strcmp("journal_wr_bytes", state->stack[state->depth - 1]) == 0)
- && (strcmp("avgcount", state->key) == 0))
- {
- DEBUG("ceph plugin: Skipping avgcount for filestore.JournalWrBytes");
- return CEPH_CB_CONTINUE;
- }
- }
- else /* not a latency type */
- {
- BUFFER_ADD (key, ".");
- BUFFER_ADD (key, state->key);
- }
+ status = state->handler(state->handler_arg, buffer, key);
+ if ((status == RETRY_AVGCOUNT) && latency_type) {
+ /* Add previously skipped part of the key, either "avgcount" or "sum",
+ * and try again. */
+ BUFFER_ADD(key, ".");
+ BUFFER_ADD(key, state->key);
status = state->handler(state->handler_arg, buffer, key);
- if((status == RETRY_AVGCOUNT) && latency_type)
- {
- /* Add previously skipped part of the key, either "avgcount" or "sum",
- * and try again. */
- BUFFER_ADD (key, ".");
- BUFFER_ADD (key, state->key);
-
- status = state->handler(state->handler_arg, buffer, key);
- }
+ }
- if (status != 0)
- {
- ERROR("ceph plugin: JSON handler failed with status %d.", status);
- return CEPH_CB_ABORT;
- }
+ if (status != 0) {
+ ERROR("ceph plugin: JSON handler failed with status %d.", status);
+ return CEPH_CB_ABORT;
+ }
- return CEPH_CB_CONTINUE;
+ return CEPH_CB_CONTINUE;
}
static int ceph_cb_string(void *ctx, const unsigned char *string_val,
- yajl_len_t string_len)
-{
- return CEPH_CB_CONTINUE;
+ yajl_len_t string_len) {
+ return CEPH_CB_CONTINUE;
}
-static int ceph_cb_start_map(void *ctx)
-{
- yajl_struct *state = (yajl_struct*) ctx;
+static int ceph_cb_start_map(void *ctx) {
+ yajl_struct *state = (yajl_struct *)ctx;
- /* Push key to the stack */
- if (state->depth == YAJL_MAX_DEPTH)
- return CEPH_CB_ABORT;
+ /* Push key to the stack */
+ if (state->depth == YAJL_MAX_DEPTH)
+ return CEPH_CB_ABORT;
- state->stack[state->depth] = state->key;
- state->depth++;
- state->key = NULL;
+ state->stack[state->depth] = state->key;
+ state->depth++;
+ state->key = NULL;
- return CEPH_CB_CONTINUE;
+ return CEPH_CB_CONTINUE;
}
-static int ceph_cb_end_map(void *ctx)
-{
- yajl_struct *state = (yajl_struct*) ctx;
+static int ceph_cb_end_map(void *ctx) {
+ yajl_struct *state = (yajl_struct *)ctx;
- /* Pop key from the stack */
- if (state->depth == 0)
- return CEPH_CB_ABORT;
+ /* Pop key from the stack */
+ if (state->depth == 0)
+ return CEPH_CB_ABORT;
- sfree (state->key);
- state->depth--;
- state->key = state->stack[state->depth];
- state->stack[state->depth] = NULL;
+ sfree(state->key);
+ state->depth--;
+ state->key = state->stack[state->depth];
+ state->stack[state->depth] = NULL;
- return CEPH_CB_CONTINUE;
+ return CEPH_CB_CONTINUE;
}
-static int
-ceph_cb_map_key(void *ctx, const unsigned char *key, yajl_len_t string_len)
-{
- yajl_struct *state = (yajl_struct*) ctx;
- size_t sz = ((size_t) string_len) + 1;
-
- sfree (state->key);
- state->key = malloc (sz);
- if (state->key == NULL)
- {
- ERROR ("ceph plugin: malloc failed.");
- return CEPH_CB_ABORT;
- }
+static int ceph_cb_map_key(void *ctx, const unsigned char *key,
+ yajl_len_t string_len) {
+ yajl_struct *state = (yajl_struct *)ctx;
+ size_t sz = ((size_t)string_len) + 1;
- memmove (state->key, key, sz - 1);
- state->key[sz - 1] = 0;
+ sfree(state->key);
+ state->key = malloc(sz);
+ if (state->key == NULL) {
+ ERROR("ceph plugin: malloc failed.");
+ return CEPH_CB_ABORT;
+ }
- return CEPH_CB_CONTINUE;
-}
+ memmove(state->key, key, sz - 1);
+ state->key[sz - 1] = 0;
-static int ceph_cb_start_array(void *ctx)
-{
- return CEPH_CB_CONTINUE;
+ return CEPH_CB_CONTINUE;
}
-static int ceph_cb_end_array(void *ctx)
-{
- return CEPH_CB_CONTINUE;
-}
+static int ceph_cb_start_array(void *ctx) { return CEPH_CB_CONTINUE; }
-static yajl_callbacks callbacks = {
- ceph_cb_null,
- ceph_cb_boolean,
- NULL,
- NULL,
- ceph_cb_number,
- ceph_cb_string,
- ceph_cb_start_map,
- ceph_cb_map_key,
- ceph_cb_end_map,
- ceph_cb_start_array,
- ceph_cb_end_array
-};
+static int ceph_cb_end_array(void *ctx) { return CEPH_CB_CONTINUE; }
-static void ceph_daemon_print(const struct ceph_daemon *d)
-{
- DEBUG("ceph plugin: name=%s, asok_path=%s", d->name, d->asok_path);
+static yajl_callbacks callbacks = {ceph_cb_null,
+ ceph_cb_boolean,
+ NULL,
+ NULL,
+ ceph_cb_number,
+ ceph_cb_string,
+ ceph_cb_start_map,
+ ceph_cb_map_key,
+ ceph_cb_end_map,
+ ceph_cb_start_array,
+ ceph_cb_end_array};
+
+static void ceph_daemon_print(const struct ceph_daemon *d) {
+ DEBUG("ceph plugin: name=%s, asok_path=%s", d->name, d->asok_path);
}
-static void ceph_daemons_print(void)
-{
- for(size_t i = 0; i < g_num_daemons; ++i)
- {
- ceph_daemon_print(g_daemons[i]);
- }
+static void ceph_daemons_print(void) {
+ for (size_t i = 0; i < g_num_daemons; ++i) {
+ ceph_daemon_print(g_daemons[i]);
+ }
}
-static void ceph_daemon_free(struct ceph_daemon *d)
-{
- for(int i = 0; i < d->last_idx; i++)
- {
- sfree(d->last_poll_data[i]);
- }
- sfree(d->last_poll_data);
- d->last_poll_data = NULL;
- d->last_idx = 0;
+static void ceph_daemon_free(struct ceph_daemon *d) {
+ for (int i = 0; i < d->last_idx; i++) {
+ sfree(d->last_poll_data[i]);
+ }
+ sfree(d->last_poll_data);
+ d->last_poll_data = NULL;
+ d->last_idx = 0;
- for(int i = 0; i < d->ds_num; i++)
- {
- sfree(d->ds_names[i]);
- }
- sfree(d->ds_types);
- sfree(d->ds_names);
- sfree(d);
+ for (int i = 0; i < d->ds_num; i++) {
+ sfree(d->ds_names[i]);
+ }
+ sfree(d->ds_types);
+ sfree(d->ds_names);
+ sfree(d);
}
/* compact_ds_name removed the special characters ":", "_", "-" and "+" from the
* intput string. Characters following these special characters are capitalized.
* Trailing "+" and "-" characters are replaces with the strings "Plus" and
* "Minus". */
-static int compact_ds_name (char *buffer, size_t buffer_size, char const *src)
-{
- char *src_copy;
- size_t src_len;
- char *ptr = buffer;
- size_t ptr_size = buffer_size;
- _Bool append_plus = 0;
- _Bool append_minus = 0;
-
- if ((buffer == NULL) || (buffer_size <= strlen ("Minus")) || (src == NULL))
- return EINVAL;
-
- src_copy = strdup (src);
- src_len = strlen(src);
-
- /* Remove trailing "+" and "-". */
- if (src_copy[src_len - 1] == '+')
- {
- append_plus = 1;
- src_len--;
- src_copy[src_len] = 0;
- }
- else if (src_copy[src_len - 1] == '-')
- {
- append_minus = 1;
- src_len--;
- src_copy[src_len] = 0;
- }
+static int compact_ds_name(char *buffer, size_t buffer_size, char const *src) {
+ char *src_copy;
+ size_t src_len;
+ char *ptr = buffer;
+ size_t ptr_size = buffer_size;
+ _Bool append_plus = 0;
+ _Bool append_minus = 0;
+
+ if ((buffer == NULL) || (buffer_size <= strlen("Minus")) || (src == NULL))
+ return EINVAL;
+
+ src_copy = strdup(src);
+ src_len = strlen(src);
+
+ /* Remove trailing "+" and "-". */
+ if (src_copy[src_len - 1] == '+') {
+ append_plus = 1;
+ src_len--;
+ src_copy[src_len] = 0;
+ } else if (src_copy[src_len - 1] == '-') {
+ append_minus = 1;
+ src_len--;
+ src_copy[src_len] = 0;
+ }
- /* Split at special chars, capitalize first character, append to buffer. */
- char *dummy = src_copy;
- char *token;
- char *save_ptr = NULL;
- while ((token = strtok_r (dummy, ":_-+", &save_ptr)) != NULL)
- {
- size_t len;
+ /* Split at special chars, capitalize first character, append to buffer. */
+ char *dummy = src_copy;
+ char *token;
+ char *save_ptr = NULL;
+ while ((token = strtok_r(dummy, ":_-+", &save_ptr)) != NULL) {
+ size_t len;
- dummy = NULL;
+ dummy = NULL;
- token[0] = toupper ((int) token[0]);
+ token[0] = toupper((int)token[0]);
- assert (ptr_size > 1);
+ assert(ptr_size > 1);
- len = strlen (token);
- if (len >= ptr_size)
- len = ptr_size - 1;
+ len = strlen(token);
+ if (len >= ptr_size)
+ len = ptr_size - 1;
- assert (len > 0);
- assert (len < ptr_size);
+ assert(len > 0);
+ assert(len < ptr_size);
- sstrncpy (ptr, token, len + 1);
- ptr += len;
- ptr_size -= len;
+ sstrncpy(ptr, token, len + 1);
+ ptr += len;
+ ptr_size -= len;
- assert (*ptr == 0);
- if (ptr_size <= 1)
- break;
- }
+ assert(*ptr == 0);
+ if (ptr_size <= 1)
+ break;
+ }
- /* Append "Plus" or "Minus" if "+" or "-" has been stripped above. */
- if (append_plus || append_minus)
- {
- char const *append = "Plus";
- if (append_minus)
- append = "Minus";
+ /* Append "Plus" or "Minus" if "+" or "-" has been stripped above. */
+ if (append_plus || append_minus) {
+ char const *append = "Plus";
+ if (append_minus)
+ append = "Minus";
- size_t offset = buffer_size - (strlen (append) + 1);
- if (offset > strlen (buffer))
- offset = strlen (buffer);
+ size_t offset = buffer_size - (strlen(append) + 1);
+ if (offset > strlen(buffer))
+ offset = strlen(buffer);
- sstrncpy (buffer + offset, append, buffer_size - offset);
- }
+ sstrncpy(buffer + offset, append, buffer_size - offset);
+ }
- sfree (src_copy);
- return 0;
+ sfree(src_copy);
+ return 0;
}
-static _Bool has_suffix (char const *str, char const *suffix)
-{
- size_t str_len = strlen (str);
- size_t suffix_len = strlen (suffix);
- size_t offset;
+static _Bool has_suffix(char const *str, char const *suffix) {
+ size_t str_len = strlen(str);
+ size_t suffix_len = strlen(suffix);
+ size_t offset;
- if (suffix_len > str_len)
- return 0;
- offset = str_len - suffix_len;
+ if (suffix_len > str_len)
+ return 0;
+ offset = str_len - suffix_len;
- if (strcmp (str + offset, suffix) == 0)
- return 1;
+ if (strcmp(str + offset, suffix) == 0)
+ return 1;
- return 0;
+ return 0;
}
/* count_parts returns the number of elements a "foo.bar.baz" style key has. */
-static size_t count_parts (char const *key)
-{
- size_t parts_num = 0;
+static size_t count_parts(char const *key) {
+ size_t parts_num = 0;
- for (const char *ptr = key; ptr != NULL; ptr = strchr (ptr + 1, '.'))
- parts_num++;
+ for (const char *ptr = key; ptr != NULL; ptr = strchr(ptr + 1, '.'))
+ parts_num++;
- return parts_num;
+ return parts_num;
}
/**
* Parse key to remove "type" if this is for schema and initiate compaction
*/
-static int parse_keys (char *buffer, size_t buffer_size, const char *key_str)
-{
- char tmp[2 * buffer_size];
-
- if (buffer == NULL || buffer_size == 0 || key_str == NULL || strlen (key_str) == 0)
- return EINVAL;
-
- if ((count_parts (key_str) > 2) && has_suffix (key_str, ".type"))
- {
- /* strip ".type" suffix iff the key has more than two parts. */
- size_t sz = strlen (key_str) - strlen (".type") + 1;
-
- if (sz > sizeof (tmp))
- sz = sizeof (tmp);
- sstrncpy (tmp, key_str, sz);
- }
- else
- {
- sstrncpy (tmp, key_str, sizeof (tmp));
- }
+static int parse_keys(char *buffer, size_t buffer_size, const char *key_str) {
+ char tmp[2 * buffer_size];
+
+ if (buffer == NULL || buffer_size == 0 || key_str == NULL ||
+ strlen(key_str) == 0)
+ return EINVAL;
+
+ if ((count_parts(key_str) > 2) && has_suffix(key_str, ".type")) {
+ /* strip ".type" suffix iff the key has more than two parts. */
+ size_t sz = strlen(key_str) - strlen(".type") + 1;
+
+ if (sz > sizeof(tmp))
+ sz = sizeof(tmp);
+ sstrncpy(tmp, key_str, sz);
+ } else {
+ sstrncpy(tmp, key_str, sizeof(tmp));
+ }
- return compact_ds_name (buffer, buffer_size, tmp);
+ return compact_ds_name(buffer, buffer_size, tmp);
}
/**
* data processing
*/
static int ceph_daemon_add_ds_entry(struct ceph_daemon *d, const char *name,
- int pc_type)
-{
- uint32_t type;
- char ds_name[DATA_MAX_NAME_LEN];
-
- if(convert_special_metrics)
- {
- /**
- * Special case for filestore:JournalWrBytes. For some reason, Ceph
- * schema encodes this as a count/sum pair while all other "Bytes" data
- * (excluding used/capacity bytes for OSD space) uses a single "Derive"
- * type. To spare further confusion, keep this KPI as the same type of
- * other "Bytes". Instead of keeping an "average" or "rate", use the
- * "sum" in the pair and assign that to the derive value.
- */
- if((strcmp(name,"filestore.journal_wr_bytes.type") == 0))
- {
- pc_type = 10;
- }
- }
+ int pc_type) {
+ uint32_t type;
+ char ds_name[DATA_MAX_NAME_LEN];
- d->ds_names = realloc(d->ds_names, sizeof(char *) * (d->ds_num + 1));
- if(!d->ds_names)
- {
- return -ENOMEM;
+ if (convert_special_metrics) {
+ /**
+ * Special case for filestore:JournalWrBytes. For some reason, Ceph
+ * schema encodes this as a count/sum pair while all other "Bytes" data
+ * (excluding used/capacity bytes for OSD space) uses a single "Derive"
+ * type. To spare further confusion, keep this KPI as the same type of
+ * other "Bytes". Instead of keeping an "average" or "rate", use the
+ * "sum" in the pair and assign that to the derive value.
+ */
+ if ((strcmp(name, "filestore.journal_wr_bytes.type") == 0)) {
+ pc_type = 10;
}
+ }
- d->ds_types = realloc(d->ds_types, sizeof(uint32_t) * (d->ds_num + 1));
- if(!d->ds_types)
- {
- return -ENOMEM;
- }
+ d->ds_names = realloc(d->ds_names, sizeof(char *) * (d->ds_num + 1));
+ if (!d->ds_names) {
+ return -ENOMEM;
+ }
- d->ds_names[d->ds_num] = malloc(DATA_MAX_NAME_LEN);
- if(!d->ds_names[d->ds_num])
- {
- return -ENOMEM;
- }
+ d->ds_types = realloc(d->ds_types, sizeof(uint32_t) * (d->ds_num + 1));
+ if (!d->ds_types) {
+ return -ENOMEM;
+ }
+
+ d->ds_names[d->ds_num] = malloc(DATA_MAX_NAME_LEN);
+ if (!d->ds_names[d->ds_num]) {
+ return -ENOMEM;
+ }
- type = (pc_type & PERFCOUNTER_DERIVE) ? DSET_RATE :
- ((pc_type & PERFCOUNTER_LATENCY) ? DSET_LATENCY : DSET_BYTES);
- d->ds_types[d->ds_num] = type;
+ type = (pc_type & PERFCOUNTER_DERIVE)
+ ? DSET_RATE
+ : ((pc_type & PERFCOUNTER_LATENCY) ? DSET_LATENCY : DSET_BYTES);
+ d->ds_types[d->ds_num] = type;
- if (parse_keys(ds_name, sizeof (ds_name), name))
- {
- return 1;
- }
+ if (parse_keys(ds_name, sizeof(ds_name), name)) {
+ return 1;
+ }
- sstrncpy(d->ds_names[d->ds_num], ds_name, DATA_MAX_NAME_LEN -1);
- d->ds_num = (d->ds_num + 1);
+ sstrncpy(d->ds_names[d->ds_num], ds_name, DATA_MAX_NAME_LEN - 1);
+ d->ds_num = (d->ds_num + 1);
- return 0;
+ return 0;
}
/******* ceph_config *******/
-static int cc_handle_str(struct oconfig_item_s *item, char *dest, int dest_len)
-{
- const char *val;
- if(item->values_num != 1)
- {
- return -ENOTSUP;
- }
- if(item->values[0].type != OCONFIG_TYPE_STRING)
- {
- return -ENOTSUP;
- }
- val = item->values[0].value.string;
- if(snprintf(dest, dest_len, "%s", val) > (dest_len - 1))
- {
- ERROR("ceph plugin: configuration parameter '%s' is too long.\n",
- item->key);
- return -ENAMETOOLONG;
- }
- return 0;
+static int cc_handle_str(struct oconfig_item_s *item, char *dest,
+ int dest_len) {
+ const char *val;
+ if (item->values_num != 1) {
+ return -ENOTSUP;
+ }
+ if (item->values[0].type != OCONFIG_TYPE_STRING) {
+ return -ENOTSUP;
+ }
+ val = item->values[0].value.string;
+ if (snprintf(dest, dest_len, "%s", val) > (dest_len - 1)) {
+ ERROR("ceph plugin: configuration parameter '%s' is too long.\n",
+ item->key);
+ return -ENAMETOOLONG;
+ }
+ return 0;
}
-static int cc_handle_bool(struct oconfig_item_s *item, int *dest)
-{
- if(item->values_num != 1)
- {
- return -ENOTSUP;
- }
+static int cc_handle_bool(struct oconfig_item_s *item, int *dest) {
+ if (item->values_num != 1) {
+ return -ENOTSUP;
+ }
- if(item->values[0].type != OCONFIG_TYPE_BOOLEAN)
- {
- return -ENOTSUP;
- }
+ if (item->values[0].type != OCONFIG_TYPE_BOOLEAN) {
+ return -ENOTSUP;
+ }
- *dest = (item->values[0].value.boolean) ? 1 : 0;
- return 0;
+ *dest = (item->values[0].value.boolean) ? 1 : 0;
+ return 0;
}
-static int cc_add_daemon_config(oconfig_item_t *ci)
-{
- int ret;
- struct ceph_daemon *nd, cd = { 0 };
- struct ceph_daemon **tmp;
-
- if((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING("ceph plugin: `Daemon' blocks need exactly one string "
- "argument.");
- return (-1);
- }
+static int cc_add_daemon_config(oconfig_item_t *ci) {
+ int ret;
+ struct ceph_daemon *nd, cd = {0};
+ struct ceph_daemon **tmp;
- ret = cc_handle_str(ci, cd.name, DATA_MAX_NAME_LEN);
- if(ret)
- {
- return ret;
- }
+ if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
+ WARNING("ceph plugin: `Daemon' blocks need exactly one string "
+ "argument.");
+ return (-1);
+ }
- for(int i=0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if(strcasecmp("SocketPath", child->key) == 0)
- {
- ret = cc_handle_str(child, cd.asok_path, sizeof(cd.asok_path));
- if(ret)
- {
- return ret;
- }
- }
- else
- {
- WARNING("ceph plugin: ignoring unknown option %s", child->key);
- }
- }
- if(cd.name[0] == '\0')
- {
- ERROR("ceph plugin: you must configure a daemon name.\n");
- return -EINVAL;
- }
- else if(cd.asok_path[0] == '\0')
- {
- ERROR("ceph plugin(name=%s): you must configure an administrative "
- "socket path.\n", cd.name);
- return -EINVAL;
- }
- else if(!((cd.asok_path[0] == '/') ||
- (cd.asok_path[0] == '.' && cd.asok_path[1] == '/')))
- {
- ERROR("ceph plugin(name=%s): administrative socket paths must begin "
- "with '/' or './' Can't parse: '%s'\n", cd.name, cd.asok_path);
- return -EINVAL;
- }
+ ret = cc_handle_str(ci, cd.name, DATA_MAX_NAME_LEN);
+ if (ret) {
+ return ret;
+ }
- tmp = realloc(g_daemons, (g_num_daemons+1) * sizeof(*g_daemons));
- if(tmp == NULL)
- {
- /* The positive return value here indicates that this is a
- * runtime error, not a configuration error. */
- return ENOMEM;
- }
- g_daemons = tmp;
+ for (int i = 0; i < ci->children_num; i++) {
+ oconfig_item_t *child = ci->children + i;
- nd = malloc(sizeof (*nd));
- if(!nd)
- {
- return ENOMEM;
+ if (strcasecmp("SocketPath", child->key) == 0) {
+ ret = cc_handle_str(child, cd.asok_path, sizeof(cd.asok_path));
+ if (ret) {
+ return ret;
+ }
+ } else {
+ WARNING("ceph plugin: ignoring unknown option %s", child->key);
}
- memcpy(nd, &cd, sizeof(*nd));
- g_daemons[g_num_daemons] = nd;
- g_num_daemons++;
- return 0;
+ }
+ if (cd.name[0] == '\0') {
+ ERROR("ceph plugin: you must configure a daemon name.\n");
+ return -EINVAL;
+ } else if (cd.asok_path[0] == '\0') {
+ ERROR("ceph plugin(name=%s): you must configure an administrative "
+ "socket path.\n",
+ cd.name);
+ return -EINVAL;
+ } else if (!((cd.asok_path[0] == '/') ||
+ (cd.asok_path[0] == '.' && cd.asok_path[1] == '/'))) {
+ ERROR("ceph plugin(name=%s): administrative socket paths must begin "
+ "with '/' or './' Can't parse: '%s'\n",
+ cd.name, cd.asok_path);
+ return -EINVAL;
+ }
+
+ tmp = realloc(g_daemons, (g_num_daemons + 1) * sizeof(*g_daemons));
+ if (tmp == NULL) {
+ /* The positive return value here indicates that this is a
+ * runtime error, not a configuration error. */
+ return ENOMEM;
+ }
+ g_daemons = tmp;
+
+ nd = malloc(sizeof(*nd));
+ if (!nd) {
+ return ENOMEM;
+ }
+ memcpy(nd, &cd, sizeof(*nd));
+ g_daemons[g_num_daemons] = nd;
+ g_num_daemons++;
+ return 0;
}
-static int ceph_config(oconfig_item_t *ci)
-{
- int ret;
-
- for(int i = 0; i < ci->children_num; ++i)
- {
- oconfig_item_t *child = ci->children + i;
- if(strcasecmp("Daemon", child->key) == 0)
- {
- ret = cc_add_daemon_config(child);
- if(ret == ENOMEM)
- {
- ERROR("ceph plugin: Couldn't allocate memory");
- return ret;
- }
- else if(ret)
- {
- //process other daemons and ignore this one
- continue;
- }
- }
- else if(strcasecmp("LongRunAvgLatency", child->key) == 0)
- {
- ret = cc_handle_bool(child, &long_run_latency_avg);
- if(ret)
- {
- return ret;
- }
- }
- else if(strcasecmp("ConvertSpecialMetricTypes", child->key) == 0)
- {
- ret = cc_handle_bool(child, &convert_special_metrics);
- if(ret)
- {
- return ret;
- }
- }
- else
- {
- WARNING("ceph plugin: ignoring unknown option %s", child->key);
- }
+static int ceph_config(oconfig_item_t *ci) {
+ int ret;
+
+ for (int i = 0; i < ci->children_num; ++i) {
+ oconfig_item_t *child = ci->children + i;
+ if (strcasecmp("Daemon", child->key) == 0) {
+ ret = cc_add_daemon_config(child);
+ if (ret == ENOMEM) {
+ ERROR("ceph plugin: Couldn't allocate memory");
+ return ret;
+ } else if (ret) {
+ // process other daemons and ignore this one
+ continue;
+ }
+ } else if (strcasecmp("LongRunAvgLatency", child->key) == 0) {
+ ret = cc_handle_bool(child, &long_run_latency_avg);
+ if (ret) {
+ return ret;
+ }
+ } else if (strcasecmp("ConvertSpecialMetricTypes", child->key) == 0) {
+ ret = cc_handle_bool(child, &convert_special_metrics);
+ if (ret) {
+ return ret;
+ }
+ } else {
+ WARNING("ceph plugin: ignoring unknown option %s", child->key);
}
- return 0;
+ }
+ return 0;
}
/**
* Parse JSON and get error message if present
*/
-static int
-traverse_json(const unsigned char *json, uint32_t json_len, yajl_handle hand)
-{
- yajl_status status = yajl_parse(hand, json, json_len);
- unsigned char *msg;
-
- switch(status)
- {
- case yajl_status_error:
- msg = yajl_get_error(hand, /* verbose = */ 1,
- /* jsonText = */ (unsigned char *) json,
- (unsigned int) json_len);
- ERROR ("ceph plugin: yajl_parse failed: %s", msg);
- yajl_free_error(hand, msg);
- return 1;
- case yajl_status_client_canceled:
- return 1;
- default:
- return 0;
- }
+static int traverse_json(const unsigned char *json, uint32_t json_len,
+ yajl_handle hand) {
+ yajl_status status = yajl_parse(hand, json, json_len);
+ unsigned char *msg;
+
+ switch (status) {
+ case yajl_status_error:
+ msg = yajl_get_error(hand, /* verbose = */ 1,
+ /* jsonText = */ (unsigned char *)json,
+ (unsigned int)json_len);
+ ERROR("ceph plugin: yajl_parse failed: %s", msg);
+ yajl_free_error(hand, msg);
+ return 1;
+ case yajl_status_client_canceled:
+ return 1;
+ default:
+ return 0;
+ }
}
/**
* Add entry for each counter while parsing schema
*/
-static int
-node_handler_define_schema(void *arg, const char *val, const char *key)
-{
- struct ceph_daemon *d = (struct ceph_daemon *) arg;
- int pc_type;
- pc_type = atoi(val);
- return ceph_daemon_add_ds_entry(d, key, pc_type);
+static int node_handler_define_schema(void *arg, const char *val,
+ const char *key) {
+ struct ceph_daemon *d = (struct ceph_daemon *)arg;
+ int pc_type;
+ pc_type = atoi(val);
+ return ceph_daemon_add_ds_entry(d, key, pc_type);
}
/**
* Latency counter does not yet have an entry in last poll data - add it.
*/
static int add_last(struct ceph_daemon *d, const char *ds_n, double cur_sum,
- uint64_t cur_count)
-{
- d->last_poll_data[d->last_idx] = malloc(sizeof (*d->last_poll_data[d->last_idx]));
- if(!d->last_poll_data[d->last_idx])
- {
- return -ENOMEM;
- }
- sstrncpy(d->last_poll_data[d->last_idx]->ds_name,ds_n,
- sizeof(d->last_poll_data[d->last_idx]->ds_name));
- d->last_poll_data[d->last_idx]->last_sum = cur_sum;
- d->last_poll_data[d->last_idx]->last_count = cur_count;
- d->last_idx = (d->last_idx + 1);
- return 0;
+ uint64_t cur_count) {
+ d->last_poll_data[d->last_idx] =
+ malloc(sizeof(*d->last_poll_data[d->last_idx]));
+ if (!d->last_poll_data[d->last_idx]) {
+ return -ENOMEM;
+ }
+ sstrncpy(d->last_poll_data[d->last_idx]->ds_name, ds_n,
+ sizeof(d->last_poll_data[d->last_idx]->ds_name));
+ d->last_poll_data[d->last_idx]->last_sum = cur_sum;
+ d->last_poll_data[d->last_idx]->last_count = cur_count;
+ d->last_idx = (d->last_idx + 1);
+ return 0;
}
/**
* Update latency counter or add new entry if it doesn't exist
*/
static int update_last(struct ceph_daemon *d, const char *ds_n, int index,
- double cur_sum, uint64_t cur_count)
-{
- if((d->last_idx > index) && (strcmp(d->last_poll_data[index]->ds_name, ds_n) == 0))
- {
- d->last_poll_data[index]->last_sum = cur_sum;
- d->last_poll_data[index]->last_count = cur_count;
- return 0;
- }
+ double cur_sum, uint64_t cur_count) {
+ if ((d->last_idx > index) &&
+ (strcmp(d->last_poll_data[index]->ds_name, ds_n) == 0)) {
+ d->last_poll_data[index]->last_sum = cur_sum;
+ d->last_poll_data[index]->last_count = cur_count;
+ return 0;
+ }
- if(!d->last_poll_data)
- {
- d->last_poll_data = malloc(sizeof (*d->last_poll_data));
- if(!d->last_poll_data)
- {
- return -ENOMEM;
- }
+ if (!d->last_poll_data) {
+ d->last_poll_data = malloc(sizeof(*d->last_poll_data));
+ if (!d->last_poll_data) {
+ return -ENOMEM;
}
- else
- {
- struct last_data **tmp_last = realloc(d->last_poll_data,
- ((d->last_idx+1) * sizeof(struct last_data *)));
- if(!tmp_last)
- {
- return -ENOMEM;
- }
- d->last_poll_data = tmp_last;
+ } else {
+ struct last_data **tmp_last = realloc(
+ d->last_poll_data, ((d->last_idx + 1) * sizeof(struct last_data *)));
+ if (!tmp_last) {
+ return -ENOMEM;
}
- return add_last(d, ds_n, cur_sum, cur_count);
+ d->last_poll_data = tmp_last;
+ }
+ return add_last(d, ds_n, cur_sum, cur_count);
}
/**
* If using index guess failed (shouldn't happen, but possible if counters
* get rearranged), resort to searching for counter name
*/
-static int backup_search_for_last_avg(struct ceph_daemon *d, const char *ds_n)
-{
- for(int i = 0; i < d->last_idx; i++)
- {
- if(strcmp(d->last_poll_data[i]->ds_name, ds_n) == 0)
- {
- return i;
- }
+static int backup_search_for_last_avg(struct ceph_daemon *d, const char *ds_n) {
+ for (int i = 0; i < d->last_idx; i++) {
+ if (strcmp(d->last_poll_data[i]->ds_name, ds_n) == 0) {
+ return i;
}
- return -1;
+ }
+ return -1;
}
/**
* if last poll data exists
*/
static double get_last_avg(struct ceph_daemon *d, const char *ds_n, int index,
- double cur_sum, uint64_t cur_count)
-{
- double result = -1.1, sum_delt = 0.0;
- uint64_t count_delt = 0;
- int tmp_index = 0;
- if(d->last_idx > index)
- {
- if(strcmp(d->last_poll_data[index]->ds_name, ds_n) == 0)
- {
- tmp_index = index;
- }
- //test previous index
- else if((index > 0) && (strcmp(d->last_poll_data[index-1]->ds_name, ds_n) == 0))
- {
- tmp_index = (index - 1);
- }
- else
- {
- tmp_index = backup_search_for_last_avg(d, ds_n);
- }
-
- if((tmp_index > -1) && (cur_count > d->last_poll_data[tmp_index]->last_count))
- {
- sum_delt = (cur_sum - d->last_poll_data[tmp_index]->last_sum);
- count_delt = (cur_count - d->last_poll_data[tmp_index]->last_count);
- result = (sum_delt / count_delt);
- }
+ double cur_sum, uint64_t cur_count) {
+ double result = -1.1, sum_delt = 0.0;
+ uint64_t count_delt = 0;
+ int tmp_index = 0;
+ if (d->last_idx > index) {
+ if (strcmp(d->last_poll_data[index]->ds_name, ds_n) == 0) {
+ tmp_index = index;
+ }
+ // test previous index
+ else if ((index > 0) &&
+ (strcmp(d->last_poll_data[index - 1]->ds_name, ds_n) == 0)) {
+ tmp_index = (index - 1);
+ } else {
+ tmp_index = backup_search_for_last_avg(d, ds_n);
+ }
+
+ if ((tmp_index > -1) &&
+ (cur_count > d->last_poll_data[tmp_index]->last_count)) {
+ sum_delt = (cur_sum - d->last_poll_data[tmp_index]->last_sum);
+ count_delt = (cur_count - d->last_poll_data[tmp_index]->last_count);
+ result = (sum_delt / count_delt);
}
+ }
- if(result == -1.1)
- {
- result = NAN;
- }
- if(update_last(d, ds_n, tmp_index, cur_sum, cur_count) == -ENOMEM)
- {
- return -ENOMEM;
- }
- return result;
+ if (result == -1.1) {
+ result = NAN;
+ }
+ if (update_last(d, ds_n, tmp_index, cur_sum, cur_count) == -ENOMEM) {
+ return -ENOMEM;
+ }
+ return result;
}
/**
* If using index guess failed, resort to searching for counter name
*/
-static uint32_t backup_search_for_type(struct ceph_daemon *d, char *ds_name)
-{
- for(int i = 0; i < d->ds_num; i++)
- {
- if(strcmp(d->ds_names[i], ds_name) == 0)
- {
- return d->ds_types[i];
- }
+static uint32_t backup_search_for_type(struct ceph_daemon *d, char *ds_name) {
+ for (int i = 0; i < d->ds_num; i++) {
+ if (strcmp(d->ds_names[i], ds_name) == 0) {
+ return d->ds_types[i];
}
- return DSET_TYPE_UNFOUND;
+ }
+ return DSET_TYPE_UNFOUND;
}
/**
* Process counter data and dispatch values
*/
-static int node_handler_fetch_data(void *arg, const char *val, const char *key)
-{
- value_t uv;
- double tmp_d;
- uint64_t tmp_u;
- struct values_tmp *vtmp = (struct values_tmp*) arg;
- uint32_t type = DSET_TYPE_UNFOUND;
- int index = vtmp->index;
-
- char ds_name[DATA_MAX_NAME_LEN];
-
- if (parse_keys (ds_name, sizeof (ds_name), key))
- {
- return 1;
- }
+static int node_handler_fetch_data(void *arg, const char *val,
+ const char *key) {
+ value_t uv;
+ double tmp_d;
+ uint64_t tmp_u;
+ struct values_tmp *vtmp = (struct values_tmp *)arg;
+ uint32_t type = DSET_TYPE_UNFOUND;
+ int index = vtmp->index;
+
+ char ds_name[DATA_MAX_NAME_LEN];
+
+ if (parse_keys(ds_name, sizeof(ds_name), key)) {
+ return 1;
+ }
- if(index >= vtmp->d->ds_num)
- {
- //don't overflow bounds of array
- index = (vtmp->d->ds_num - 1);
- }
+ if (index >= vtmp->d->ds_num) {
+ // don't overflow bounds of array
+ index = (vtmp->d->ds_num - 1);
+ }
- /**
- * counters should remain in same order we parsed schema... we maintain the
- * index variable to keep track of current point in list of counters. first
- * use index to guess point in array for retrieving type. if that doesn't
- * work, use the old way to get the counter type
- */
- if(strcmp(ds_name, vtmp->d->ds_names[index]) == 0)
- {
- //found match
- type = vtmp->d->ds_types[index];
- }
- else if((index > 0) && (strcmp(ds_name, vtmp->d->ds_names[index-1]) == 0))
- {
- //try previous key
- type = vtmp->d->ds_types[index-1];
- }
+ /**
+ * counters should remain in same order we parsed schema... we maintain the
+ * index variable to keep track of current point in list of counters. first
+ * use index to guess point in array for retrieving type. if that doesn't
+ * work, use the old way to get the counter type
+ */
+ if (strcmp(ds_name, vtmp->d->ds_names[index]) == 0) {
+ // found match
+ type = vtmp->d->ds_types[index];
+ } else if ((index > 0) &&
+ (strcmp(ds_name, vtmp->d->ds_names[index - 1]) == 0)) {
+ // try previous key
+ type = vtmp->d->ds_types[index - 1];
+ }
- if(type == DSET_TYPE_UNFOUND)
- {
- //couldn't find right type by guessing, check the old way
- type = backup_search_for_type(vtmp->d, ds_name);
- }
+ if (type == DSET_TYPE_UNFOUND) {
+ // couldn't find right type by guessing, check the old way
+ type = backup_search_for_type(vtmp->d, ds_name);
+ }
- switch(type)
- {
- case DSET_LATENCY:
- if(vtmp->avgcount_exists == -1)
- {
- sscanf(val, "%" PRIu64, &vtmp->avgcount);
- vtmp->avgcount_exists = 0;
- //return after saving avgcount - don't dispatch value
- //until latency calculation
- return 0;
- }
- else
- {
- double sum, result;
- sscanf(val, "%lf", &sum);
-
- if(vtmp->avgcount == 0)
- {
- vtmp->avgcount = 1;
- }
-
- /** User wants latency values as long run avg */
- if(long_run_latency_avg)
- {
- result = (sum / vtmp->avgcount);
- }
- else
- {
- result = get_last_avg(vtmp->d, ds_name, vtmp->latency_index, sum, vtmp->avgcount);
- if(result == -ENOMEM)
- {
- return -ENOMEM;
- }
- }
-
- uv.gauge = result;
- vtmp->avgcount_exists = -1;
- vtmp->latency_index = (vtmp->latency_index + 1);
- }
- break;
- case DSET_BYTES:
- sscanf(val, "%lf", &tmp_d);
- uv.gauge = tmp_d;
- break;
- case DSET_RATE:
- sscanf(val, "%" PRIu64, &tmp_u);
- uv.derive = tmp_u;
- break;
- case DSET_TYPE_UNFOUND:
- default:
- ERROR("ceph plugin: ds %s was not properly initialized.", ds_name);
- return -1;
- }
+ switch (type) {
+ case DSET_LATENCY:
+ if (vtmp->avgcount_exists == -1) {
+ sscanf(val, "%" PRIu64, &vtmp->avgcount);
+ vtmp->avgcount_exists = 0;
+ // return after saving avgcount - don't dispatch value
+ // until latency calculation
+ return 0;
+ } else {
+ double sum, result;
+ sscanf(val, "%lf", &sum);
+
+ if (vtmp->avgcount == 0) {
+ vtmp->avgcount = 1;
+ }
+
+ /** User wants latency values as long run avg */
+ if (long_run_latency_avg) {
+ result = (sum / vtmp->avgcount);
+ } else {
+ result = get_last_avg(vtmp->d, ds_name, vtmp->latency_index, sum,
+ vtmp->avgcount);
+ if (result == -ENOMEM) {
+ return -ENOMEM;
+ }
+ }
+
+ uv.gauge = result;
+ vtmp->avgcount_exists = -1;
+ vtmp->latency_index = (vtmp->latency_index + 1);
+ }
+ break;
+ case DSET_BYTES:
+ sscanf(val, "%lf", &tmp_d);
+ uv.gauge = tmp_d;
+ break;
+ case DSET_RATE:
+ sscanf(val, "%" PRIu64, &tmp_u);
+ uv.derive = tmp_u;
+ break;
+ case DSET_TYPE_UNFOUND:
+ default:
+ ERROR("ceph plugin: ds %s was not properly initialized.", ds_name);
+ return -1;
+ }
- sstrncpy(vtmp->vlist.type, ceph_dset_types[type], sizeof(vtmp->vlist.type));
- sstrncpy(vtmp->vlist.type_instance, ds_name, sizeof(vtmp->vlist.type_instance));
- vtmp->vlist.values = &uv;
- vtmp->vlist.values_len = 1;
+ sstrncpy(vtmp->vlist.type, ceph_dset_types[type], sizeof(vtmp->vlist.type));
+ sstrncpy(vtmp->vlist.type_instance, ds_name,
+ sizeof(vtmp->vlist.type_instance));
+ vtmp->vlist.values = &uv;
+ vtmp->vlist.values_len = 1;
- vtmp->index = (vtmp->index + 1);
- plugin_dispatch_values(&vtmp->vlist);
+ vtmp->index = (vtmp->index + 1);
+ plugin_dispatch_values(&vtmp->vlist);
- return 0;
+ return 0;
}
-static int cconn_connect(struct cconn *io)
-{
- struct sockaddr_un address = { 0 };
- int flags, fd, err;
- if(io->state != CSTATE_UNCONNECTED)
- {
- ERROR("ceph plugin: cconn_connect: io->state != CSTATE_UNCONNECTED");
- return -EDOM;
- }
- fd = socket(PF_UNIX, SOCK_STREAM, 0);
- if(fd < 0)
- {
- err = -errno;
- ERROR("ceph plugin: cconn_connect: socket(PF_UNIX, SOCK_STREAM, 0) "
- "failed: error %d", err);
- return err;
- }
- address.sun_family = AF_UNIX;
- snprintf(address.sun_path, sizeof(address.sun_path), "%s",
- io->d->asok_path);
- RETRY_ON_EINTR(err,
- connect(fd, (struct sockaddr *) &address, sizeof(struct sockaddr_un)));
- if(err < 0)
- {
- ERROR("ceph plugin: cconn_connect: connect(%d) failed: error %d",
- fd, err);
- close(fd);
- return err;
- }
+static int cconn_connect(struct cconn *io) {
+ struct sockaddr_un address = {0};
+ int flags, fd, err;
+ if (io->state != CSTATE_UNCONNECTED) {
+ ERROR("ceph plugin: cconn_connect: io->state != CSTATE_UNCONNECTED");
+ return -EDOM;
+ }
+ fd = socket(PF_UNIX, SOCK_STREAM, 0);
+ if (fd < 0) {
+ err = -errno;
+ ERROR("ceph plugin: cconn_connect: socket(PF_UNIX, SOCK_STREAM, 0) "
+ "failed: error %d",
+ err);
+ return err;
+ }
+ address.sun_family = AF_UNIX;
+ snprintf(address.sun_path, sizeof(address.sun_path), "%s", io->d->asok_path);
+ RETRY_ON_EINTR(err, connect(fd, (struct sockaddr *)&address,
+ sizeof(struct sockaddr_un)));
+ if (err < 0) {
+ ERROR("ceph plugin: cconn_connect: connect(%d) failed: error %d", fd, err);
+ close(fd);
+ return err;
+ }
- flags = fcntl(fd, F_GETFL, 0);
- if(fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0)
- {
- err = -errno;
- ERROR("ceph plugin: cconn_connect: fcntl(%d, O_NONBLOCK) error %d",
- fd, err);
- close(fd);
- return err;
- }
- io->asok = fd;
- io->state = CSTATE_WRITE_REQUEST;
- io->amt = 0;
- io->json_len = 0;
- io->json = NULL;
- return 0;
+ flags = fcntl(fd, F_GETFL, 0);
+ if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0) {
+ err = -errno;
+ ERROR("ceph plugin: cconn_connect: fcntl(%d, O_NONBLOCK) error %d", fd,
+ err);
+ close(fd);
+ return err;
+ }
+ io->asok = fd;
+ io->state = CSTATE_WRITE_REQUEST;
+ io->amt = 0;
+ io->json_len = 0;
+ io->json = NULL;
+ return 0;
}
-static void cconn_close(struct cconn *io)
-{
- io->state = CSTATE_UNCONNECTED;
- if(io->asok != -1)
- {
- int res;
- RETRY_ON_EINTR(res, close(io->asok));
- }
- io->asok = -1;
- io->amt = 0;
- io->json_len = 0;
- sfree(io->json);
- io->json = NULL;
+static void cconn_close(struct cconn *io) {
+ io->state = CSTATE_UNCONNECTED;
+ if (io->asok != -1) {
+ int res;
+ RETRY_ON_EINTR(res, close(io->asok));
+ }
+ io->asok = -1;
+ io->amt = 0;
+ io->json_len = 0;
+ sfree(io->json);
+ io->json = NULL;
}
/* Process incoming JSON counter data */
-static int
-cconn_process_data(struct cconn *io, yajl_struct *yajl, yajl_handle hand)
-{
- int ret;
- struct values_tmp *vtmp = calloc(1, sizeof(struct values_tmp) * 1);
- if(!vtmp)
- {
- return -ENOMEM;
- }
+static int cconn_process_data(struct cconn *io, yajl_struct *yajl,
+ yajl_handle hand) {
+ int ret;
+ struct values_tmp *vtmp = calloc(1, sizeof(struct values_tmp) * 1);
+ if (!vtmp) {
+ return -ENOMEM;
+ }
- vtmp->vlist = (value_list_t)VALUE_LIST_INIT;
- sstrncpy(vtmp->vlist.plugin, "ceph", sizeof(vtmp->vlist.plugin));
- sstrncpy(vtmp->vlist.plugin_instance, io->d->name, sizeof(vtmp->vlist.plugin_instance));
-
- vtmp->d = io->d;
- vtmp->avgcount_exists = -1;
- vtmp->latency_index = 0;
- vtmp->index = 0;
- yajl->handler_arg = vtmp;
- ret = traverse_json(io->json, io->json_len, hand);
- sfree(vtmp);
- return ret;
+ vtmp->vlist = (value_list_t)VALUE_LIST_INIT;
+ sstrncpy(vtmp->vlist.plugin, "ceph", sizeof(vtmp->vlist.plugin));
+ sstrncpy(vtmp->vlist.plugin_instance, io->d->name,
+ sizeof(vtmp->vlist.plugin_instance));
+
+ vtmp->d = io->d;
+ vtmp->avgcount_exists = -1;
+ vtmp->latency_index = 0;
+ vtmp->index = 0;
+ yajl->handler_arg = vtmp;
+ ret = traverse_json(io->json, io->json_len, hand);
+ sfree(vtmp);
+ return ret;
}
/**
* Initiate JSON parsing and print error if one occurs
*/
-static int cconn_process_json(struct cconn *io)
-{
- if((io->request_type != ASOK_REQ_DATA) &&
- (io->request_type != ASOK_REQ_SCHEMA))
- {
- return -EDOM;
- }
+static int cconn_process_json(struct cconn *io) {
+ if ((io->request_type != ASOK_REQ_DATA) &&
+ (io->request_type != ASOK_REQ_SCHEMA)) {
+ return -EDOM;
+ }
- int result = 1;
- yajl_handle hand;
- yajl_status status;
+ int result = 1;
+ yajl_handle hand;
+ yajl_status status;
- hand = yajl_alloc(&callbacks,
+ hand = yajl_alloc(&callbacks,
#if HAVE_YAJL_V2
- /* alloc funcs = */ NULL,
+ /* alloc funcs = */ NULL,
#else
- /* alloc funcs = */ NULL, NULL,
+ /* alloc funcs = */ NULL, NULL,
#endif
- /* context = */ (void *)(&io->yajl));
+ /* context = */ (void *)(&io->yajl));
- if(!hand)
- {
- ERROR ("ceph plugin: yajl_alloc failed.");
- return ENOMEM;
- }
+ if (!hand) {
+ ERROR("ceph plugin: yajl_alloc failed.");
+ return ENOMEM;
+ }
- io->yajl.depth = 0;
-
- switch(io->request_type)
- {
- case ASOK_REQ_DATA:
- io->yajl.handler = node_handler_fetch_data;
- result = cconn_process_data(io, &io->yajl, hand);
- break;
- case ASOK_REQ_SCHEMA:
- //init daemon specific variables
- io->d->ds_num = 0;
- io->d->last_idx = 0;
- io->d->last_poll_data = NULL;
- io->yajl.handler = node_handler_define_schema;
- io->yajl.handler_arg = io->d;
- result = traverse_json(io->json, io->json_len, hand);
- break;
- }
+ io->yajl.depth = 0;
+
+ switch (io->request_type) {
+ case ASOK_REQ_DATA:
+ io->yajl.handler = node_handler_fetch_data;
+ result = cconn_process_data(io, &io->yajl, hand);
+ break;
+ case ASOK_REQ_SCHEMA:
+ // init daemon specific variables
+ io->d->ds_num = 0;
+ io->d->last_idx = 0;
+ io->d->last_poll_data = NULL;
+ io->yajl.handler = node_handler_define_schema;
+ io->yajl.handler_arg = io->d;
+ result = traverse_json(io->json, io->json_len, hand);
+ break;
+ }
- if(result)
- {
- goto done;
- }
+ if (result) {
+ goto done;
+ }
#if HAVE_YAJL_V2
- status = yajl_complete_parse(hand);
+ status = yajl_complete_parse(hand);
#else
- status = yajl_parse_complete(hand);
+ status = yajl_parse_complete(hand);
#endif
- if (status != yajl_status_ok)
- {
- unsigned char *errmsg = yajl_get_error (hand, /* verbose = */ 0,
- /* jsonText = */ NULL, /* jsonTextLen = */ 0);
- ERROR ("ceph plugin: yajl_parse_complete failed: %s",
- (char *) errmsg);
- yajl_free_error (hand, errmsg);
- yajl_free (hand);
- return 1;
- }
+ if (status != yajl_status_ok) {
+ unsigned char *errmsg =
+ yajl_get_error(hand, /* verbose = */ 0,
+ /* jsonText = */ NULL, /* jsonTextLen = */ 0);
+ ERROR("ceph plugin: yajl_parse_complete failed: %s", (char *)errmsg);
+ yajl_free_error(hand, errmsg);
+ yajl_free(hand);
+ return 1;
+ }
- done:
- yajl_free (hand);
- return result;
+done:
+ yajl_free(hand);
+ return result;
}
-static int cconn_validate_revents(struct cconn *io, int revents)
-{
- if(revents & POLLERR)
- {
- ERROR("ceph plugin: cconn_validate_revents(name=%s): got POLLERR",
- io->d->name);
- return -EIO;
- }
- switch (io->state)
- {
- case CSTATE_WRITE_REQUEST:
- return (revents & POLLOUT) ? 0 : -EINVAL;
- case CSTATE_READ_VERSION:
- case CSTATE_READ_AMT:
- case CSTATE_READ_JSON:
- return (revents & POLLIN) ? 0 : -EINVAL;
- default:
- ERROR("ceph plugin: cconn_validate_revents(name=%s) got to "
- "illegal state on line %d", io->d->name, __LINE__);
- return -EDOM;
- }
+static int cconn_validate_revents(struct cconn *io, int revents) {
+ if (revents & POLLERR) {
+ ERROR("ceph plugin: cconn_validate_revents(name=%s): got POLLERR",
+ io->d->name);
+ return -EIO;
+ }
+ switch (io->state) {
+ case CSTATE_WRITE_REQUEST:
+ return (revents & POLLOUT) ? 0 : -EINVAL;
+ case CSTATE_READ_VERSION:
+ case CSTATE_READ_AMT:
+ case CSTATE_READ_JSON:
+ return (revents & POLLIN) ? 0 : -EINVAL;
+ default:
+ ERROR("ceph plugin: cconn_validate_revents(name=%s) got to "
+ "illegal state on line %d",
+ io->d->name, __LINE__);
+ return -EDOM;
+ }
}
/** Handle a network event for a connection */
-static int cconn_handle_event(struct cconn *io)
-{
- int ret;
- switch (io->state)
- {
- case CSTATE_UNCONNECTED:
- ERROR("ceph plugin: cconn_handle_event(name=%s) got to illegal "
- "state on line %d", io->d->name, __LINE__);
-
- return -EDOM;
- case CSTATE_WRITE_REQUEST:
- {
- char cmd[32];
- snprintf(cmd, sizeof(cmd), "%s%d%s", "{ \"prefix\": \"",
- io->request_type, "\" }\n");
- size_t cmd_len = strlen(cmd);
- RETRY_ON_EINTR(ret,
- write(io->asok, ((char*)&cmd) + io->amt, cmd_len - io->amt));
- DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,amt=%d,ret=%d)",
- io->d->name, io->state, io->amt, ret);
- if(ret < 0)
- {
- return ret;
- }
- io->amt += ret;
- if(io->amt >= cmd_len)
- {
- io->amt = 0;
- switch (io->request_type)
- {
- case ASOK_REQ_VERSION:
- io->state = CSTATE_READ_VERSION;
- break;
- default:
- io->state = CSTATE_READ_AMT;
- break;
- }
- }
- return 0;
- }
- case CSTATE_READ_VERSION:
- {
- RETRY_ON_EINTR(ret,
- read(io->asok, ((char*)(&io->d->version)) + io->amt,
- sizeof(io->d->version) - io->amt));
- DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
- io->d->name, io->state, ret);
- if(ret < 0)
- {
- return ret;
- }
- io->amt += ret;
- if(io->amt >= sizeof(io->d->version))
- {
- io->d->version = ntohl(io->d->version);
- if(io->d->version != 1)
- {
- ERROR("ceph plugin: cconn_handle_event(name=%s) not "
- "expecting version %d!", io->d->name, io->d->version);
- return -ENOTSUP;
- }
- DEBUG("ceph plugin: cconn_handle_event(name=%s): identified as "
- "version %d", io->d->name, io->d->version);
- io->amt = 0;
- cconn_close(io);
- io->request_type = ASOK_REQ_SCHEMA;
- }
- return 0;
- }
- case CSTATE_READ_AMT:
- {
- RETRY_ON_EINTR(ret,
- read(io->asok, ((char*)(&io->json_len)) + io->amt,
- sizeof(io->json_len) - io->amt));
- DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
- io->d->name, io->state, ret);
- if(ret < 0)
- {
- return ret;
- }
- io->amt += ret;
- if(io->amt >= sizeof(io->json_len))
- {
- io->json_len = ntohl(io->json_len);
- io->amt = 0;
- io->state = CSTATE_READ_JSON;
- io->json = calloc(1, io->json_len + 1);
- if(!io->json)
- {
- ERROR("ceph plugin: error callocing io->json");
- return -ENOMEM;
- }
- }
- return 0;
- }
- case CSTATE_READ_JSON:
- {
- RETRY_ON_EINTR(ret,
+static int cconn_handle_event(struct cconn *io) {
+ int ret;
+ switch (io->state) {
+ case CSTATE_UNCONNECTED:
+ ERROR("ceph plugin: cconn_handle_event(name=%s) got to illegal "
+ "state on line %d",
+ io->d->name, __LINE__);
+
+ return -EDOM;
+ case CSTATE_WRITE_REQUEST: {
+ char cmd[32];
+ snprintf(cmd, sizeof(cmd), "%s%d%s", "{ \"prefix\": \"", io->request_type,
+ "\" }\n");
+ size_t cmd_len = strlen(cmd);
+ RETRY_ON_EINTR(
+ ret, write(io->asok, ((char *)&cmd) + io->amt, cmd_len - io->amt));
+ DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,amt=%d,ret=%d)",
+ io->d->name, io->state, io->amt, ret);
+ if (ret < 0) {
+ return ret;
+ }
+ io->amt += ret;
+ if (io->amt >= cmd_len) {
+ io->amt = 0;
+ switch (io->request_type) {
+ case ASOK_REQ_VERSION:
+ io->state = CSTATE_READ_VERSION;
+ break;
+ default:
+ io->state = CSTATE_READ_AMT;
+ break;
+ }
+ }
+ return 0;
+ }
+ case CSTATE_READ_VERSION: {
+ RETRY_ON_EINTR(ret, read(io->asok, ((char *)(&io->d->version)) + io->amt,
+ sizeof(io->d->version) - io->amt));
+ DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
+ io->d->name, io->state, ret);
+ if (ret < 0) {
+ return ret;
+ }
+ io->amt += ret;
+ if (io->amt >= sizeof(io->d->version)) {
+ io->d->version = ntohl(io->d->version);
+ if (io->d->version != 1) {
+ ERROR("ceph plugin: cconn_handle_event(name=%s) not "
+ "expecting version %d!",
+ io->d->name, io->d->version);
+ return -ENOTSUP;
+ }
+ DEBUG("ceph plugin: cconn_handle_event(name=%s): identified as "
+ "version %d",
+ io->d->name, io->d->version);
+ io->amt = 0;
+ cconn_close(io);
+ io->request_type = ASOK_REQ_SCHEMA;
+ }
+ return 0;
+ }
+ case CSTATE_READ_AMT: {
+ RETRY_ON_EINTR(ret, read(io->asok, ((char *)(&io->json_len)) + io->amt,
+ sizeof(io->json_len) - io->amt));
+ DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
+ io->d->name, io->state, ret);
+ if (ret < 0) {
+ return ret;
+ }
+ io->amt += ret;
+ if (io->amt >= sizeof(io->json_len)) {
+ io->json_len = ntohl(io->json_len);
+ io->amt = 0;
+ io->state = CSTATE_READ_JSON;
+ io->json = calloc(1, io->json_len + 1);
+ if (!io->json) {
+ ERROR("ceph plugin: error callocing io->json");
+ return -ENOMEM;
+ }
+ }
+ return 0;
+ }
+ case CSTATE_READ_JSON: {
+ RETRY_ON_EINTR(ret,
read(io->asok, io->json + io->amt, io->json_len - io->amt));
- DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
- io->d->name, io->state, ret);
- if(ret < 0)
- {
- return ret;
- }
- io->amt += ret;
- if(io->amt >= io->json_len)
- {
- ret = cconn_process_json(io);
- if(ret)
- {
- return ret;
- }
- cconn_close(io);
- io->request_type = ASOK_REQ_NONE;
- }
- return 0;
- }
- default:
- ERROR("ceph plugin: cconn_handle_event(name=%s) got to illegal "
- "state on line %d", io->d->name, __LINE__);
- return -EDOM;
+ DEBUG("ceph plugin: cconn_handle_event(name=%s,state=%d,ret=%d)",
+ io->d->name, io->state, ret);
+ if (ret < 0) {
+ return ret;
+ }
+ io->amt += ret;
+ if (io->amt >= io->json_len) {
+ ret = cconn_process_json(io);
+ if (ret) {
+ return ret;
+ }
+ cconn_close(io);
+ io->request_type = ASOK_REQ_NONE;
}
+ return 0;
+ }
+ default:
+ ERROR("ceph plugin: cconn_handle_event(name=%s) got to illegal "
+ "state on line %d",
+ io->d->name, __LINE__);
+ return -EDOM;
+ }
}
-static int cconn_prepare(struct cconn *io, struct pollfd* fds)
-{
- int ret;
- if(io->request_type == ASOK_REQ_NONE)
- {
- /* The request has already been serviced. */
- return 0;
- }
- else if((io->request_type == ASOK_REQ_DATA) && (io->d->ds_num == 0))
- {
- /* If there are no counters to report on, don't bother
- * connecting */
- return 0;
- }
+static int cconn_prepare(struct cconn *io, struct pollfd *fds) {
+ int ret;
+ if (io->request_type == ASOK_REQ_NONE) {
+ /* The request has already been serviced. */
+ return 0;
+ } else if ((io->request_type == ASOK_REQ_DATA) && (io->d->ds_num == 0)) {
+ /* If there are no counters to report on, don't bother
+ * connecting */
+ return 0;
+ }
- switch (io->state)
- {
- case CSTATE_UNCONNECTED:
- ret = cconn_connect(io);
- if(ret > 0)
- {
- return -ret;
- }
- else if(ret < 0)
- {
- return ret;
- }
- fds->fd = io->asok;
- fds->events = POLLOUT;
- return 1;
- case CSTATE_WRITE_REQUEST:
- fds->fd = io->asok;
- fds->events = POLLOUT;
- return 1;
- case CSTATE_READ_VERSION:
- case CSTATE_READ_AMT:
- case CSTATE_READ_JSON:
- fds->fd = io->asok;
- fds->events = POLLIN;
- return 1;
- default:
- ERROR("ceph plugin: cconn_prepare(name=%s) got to illegal state "
- "on line %d", io->d->name, __LINE__);
- return -EDOM;
- }
+ switch (io->state) {
+ case CSTATE_UNCONNECTED:
+ ret = cconn_connect(io);
+ if (ret > 0) {
+ return -ret;
+ } else if (ret < 0) {
+ return ret;
+ }
+ fds->fd = io->asok;
+ fds->events = POLLOUT;
+ return 1;
+ case CSTATE_WRITE_REQUEST:
+ fds->fd = io->asok;
+ fds->events = POLLOUT;
+ return 1;
+ case CSTATE_READ_VERSION:
+ case CSTATE_READ_AMT:
+ case CSTATE_READ_JSON:
+ fds->fd = io->asok;
+ fds->events = POLLIN;
+ return 1;
+ default:
+ ERROR("ceph plugin: cconn_prepare(name=%s) got to illegal state "
+ "on line %d",
+ io->d->name, __LINE__);
+ return -EDOM;
+ }
}
/** Returns the difference between two struct timevals in milliseconds.
* On overflow, we return max/min int.
*/
-static int milli_diff(const struct timeval *t1, const struct timeval *t2)
-{
- int64_t ret;
- int sec_diff = t1->tv_sec - t2->tv_sec;
- int usec_diff = t1->tv_usec - t2->tv_usec;
- ret = usec_diff / 1000;
- ret += (sec_diff * 1000);
- return (ret > INT_MAX) ? INT_MAX : ((ret < INT_MIN) ? INT_MIN : (int)ret);
+static int milli_diff(const struct timeval *t1, const struct timeval *t2) {
+ int64_t ret;
+ int sec_diff = t1->tv_sec - t2->tv_sec;
+ int usec_diff = t1->tv_usec - t2->tv_usec;
+ ret = usec_diff / 1000;
+ ret += (sec_diff * 1000);
+ return (ret > INT_MAX) ? INT_MAX : ((ret < INT_MIN) ? INT_MIN : (int)ret);
}
/** This handles the actual network I/O to talk to the Ceph daemons.
*/
-static int cconn_main_loop(uint32_t request_type)
-{
- int ret, some_unreachable = 0;
- struct timeval end_tv;
- struct cconn io_array[g_num_daemons];
-
- DEBUG ("ceph plugin: entering cconn_main_loop(request_type = %"PRIu32")", request_type);
-
- if (g_num_daemons < 1)
- {
- ERROR ("ceph plugin: No daemons configured. See the \"Daemon\" config option.");
- return ENOENT;
- }
+static int cconn_main_loop(uint32_t request_type) {
+ int ret, some_unreachable = 0;
+ struct timeval end_tv;
+ struct cconn io_array[g_num_daemons];
+
+ DEBUG("ceph plugin: entering cconn_main_loop(request_type = %" PRIu32 ")",
+ request_type);
+
+ if (g_num_daemons < 1) {
+ ERROR("ceph plugin: No daemons configured. See the \"Daemon\" config "
+ "option.");
+ return ENOENT;
+ }
- /* create cconn array */
- for (size_t i = 0; i < g_num_daemons; i++)
- {
- io_array[i] = (struct cconn) {
- .d = g_daemons[i],
- .request_type = request_type,
- .state = CSTATE_UNCONNECTED,
- };
- }
+ /* create cconn array */
+ for (size_t i = 0; i < g_num_daemons; i++) {
+ io_array[i] = (struct cconn){
+ .d = g_daemons[i],
+ .request_type = request_type,
+ .state = CSTATE_UNCONNECTED,
+ };
+ }
- /** Calculate the time at which we should give up */
- gettimeofday(&end_tv, NULL);
- end_tv.tv_sec += CEPH_TIMEOUT_INTERVAL;
-
- while (1)
- {
- int nfds, diff;
- struct timeval tv;
- struct cconn *polled_io_array[g_num_daemons];
- struct pollfd fds[g_num_daemons];
- memset(fds, 0, sizeof(fds));
- nfds = 0;
- for(size_t i = 0; i < g_num_daemons; ++i)
- {
- struct cconn *io = io_array + i;
- ret = cconn_prepare(io, fds + nfds);
- if(ret < 0)
- {
- WARNING("ceph plugin: cconn_prepare(name=%s,i=%zu,st=%d)=%d",
- io->d->name, i, io->state, ret);
- cconn_close(io);
- io->request_type = ASOK_REQ_NONE;
- some_unreachable = 1;
- }
- else if(ret == 1)
- {
- polled_io_array[nfds++] = io_array + i;
- }
- }
- if(nfds == 0)
- {
- /* finished */
- ret = 0;
- goto done;
- }
- gettimeofday(&tv, NULL);
- diff = milli_diff(&end_tv, &tv);
- if(diff <= 0)
- {
- /* Timed out */
- ret = -ETIMEDOUT;
- WARNING("ceph plugin: cconn_main_loop: timed out.");
- goto done;
- }
- RETRY_ON_EINTR(ret, poll(fds, nfds, diff));
- if(ret < 0)
- {
- ERROR("ceph plugin: poll(2) error: %d", ret);
- goto done;
- }
- for(int i = 0; i < nfds; ++i)
- {
- struct cconn *io = polled_io_array[i];
- int revents = fds[i].revents;
- if(revents == 0)
- {
- /* do nothing */
- continue;
- }
- else if(cconn_validate_revents(io, revents))
- {
- WARNING("ceph plugin: cconn(name=%s,i=%d,st=%d): "
+ /** Calculate the time at which we should give up */
+ gettimeofday(&end_tv, NULL);
+ end_tv.tv_sec += CEPH_TIMEOUT_INTERVAL;
+
+ while (1) {
+ int nfds, diff;
+ struct timeval tv;
+ struct cconn *polled_io_array[g_num_daemons];
+ struct pollfd fds[g_num_daemons];
+ memset(fds, 0, sizeof(fds));
+ nfds = 0;
+ for (size_t i = 0; i < g_num_daemons; ++i) {
+ struct cconn *io = io_array + i;
+ ret = cconn_prepare(io, fds + nfds);
+ if (ret < 0) {
+ WARNING("ceph plugin: cconn_prepare(name=%s,i=%zu,st=%d)=%d",
+ io->d->name, i, io->state, ret);
+ cconn_close(io);
+ io->request_type = ASOK_REQ_NONE;
+ some_unreachable = 1;
+ } else if (ret == 1) {
+ polled_io_array[nfds++] = io_array + i;
+ }
+ }
+ if (nfds == 0) {
+ /* finished */
+ ret = 0;
+ goto done;
+ }
+ gettimeofday(&tv, NULL);
+ diff = milli_diff(&end_tv, &tv);
+ if (diff <= 0) {
+ /* Timed out */
+ ret = -ETIMEDOUT;
+ WARNING("ceph plugin: cconn_main_loop: timed out.");
+ goto done;
+ }
+ RETRY_ON_EINTR(ret, poll(fds, nfds, diff));
+ if (ret < 0) {
+ ERROR("ceph plugin: poll(2) error: %d", ret);
+ goto done;
+ }
+ for (int i = 0; i < nfds; ++i) {
+ struct cconn *io = polled_io_array[i];
+ int revents = fds[i].revents;
+ if (revents == 0) {
+ /* do nothing */
+ continue;
+ } else if (cconn_validate_revents(io, revents)) {
+ WARNING("ceph plugin: cconn(name=%s,i=%d,st=%d): "
"revents validation error: "
- "revents=0x%08x", io->d->name, i, io->state, revents);
- cconn_close(io);
- io->request_type = ASOK_REQ_NONE;
- some_unreachable = 1;
- }
- else
- {
- ret = cconn_handle_event(io);
- if(ret)
- {
- WARNING("ceph plugin: cconn_handle_event(name=%s,"
- "i=%d,st=%d): error %d", io->d->name, i, io->state, ret);
- cconn_close(io);
- io->request_type = ASOK_REQ_NONE;
- some_unreachable = 1;
- }
- }
+ "revents=0x%08x",
+ io->d->name, i, io->state, revents);
+ cconn_close(io);
+ io->request_type = ASOK_REQ_NONE;
+ some_unreachable = 1;
+ } else {
+ ret = cconn_handle_event(io);
+ if (ret) {
+ WARNING("ceph plugin: cconn_handle_event(name=%s,"
+ "i=%d,st=%d): error %d",
+ io->d->name, i, io->state, ret);
+ cconn_close(io);
+ io->request_type = ASOK_REQ_NONE;
+ some_unreachable = 1;
}
+ }
}
- done: for(size_t i = 0; i < g_num_daemons; ++i)
- {
- cconn_close(io_array + i);
- }
- if(some_unreachable)
- {
- DEBUG("ceph plugin: cconn_main_loop: some Ceph daemons were unreachable.");
- }
- else
- {
- DEBUG("ceph plugin: cconn_main_loop: reached all Ceph daemons :)");
- }
- return ret;
+ }
+done:
+ for (size_t i = 0; i < g_num_daemons; ++i) {
+ cconn_close(io_array + i);
+ }
+ if (some_unreachable) {
+ DEBUG("ceph plugin: cconn_main_loop: some Ceph daemons were unreachable.");
+ } else {
+ DEBUG("ceph plugin: cconn_main_loop: reached all Ceph daemons :)");
+ }
+ return ret;
}
-static int ceph_read(void)
-{
- return cconn_main_loop(ASOK_REQ_DATA);
-}
+static int ceph_read(void) { return cconn_main_loop(ASOK_REQ_DATA); }
/******* lifecycle *******/
-static int ceph_init(void)
-{
+static int ceph_init(void) {
#if defined(HAVE_SYS_CAPABILITY_H) && defined(CAP_DAC_OVERRIDE)
- if (check_capability (CAP_DAC_OVERRIDE) != 0)
- {
- if (getuid () == 0)
- WARNING ("ceph plugin: Running collectd as root, but the "
- "CAP_DAC_OVERRIDE capability is missing. The plugin's read "
- "function will probably fail. Is your init system dropping "
- "capabilities?");
+ if (check_capability(CAP_DAC_OVERRIDE) != 0) {
+ if (getuid() == 0)
+ WARNING("ceph plugin: Running collectd as root, but the "
+ "CAP_DAC_OVERRIDE capability is missing. The plugin's read "
+ "function will probably fail. Is your init system dropping "
+ "capabilities?");
else
- WARNING ("ceph plugin: collectd doesn't have the CAP_DAC_OVERRIDE "
+ WARNING(
+ "ceph plugin: collectd doesn't have the CAP_DAC_OVERRIDE "
"capability. If you don't want to run collectd as root, try running "
"\"setcap cap_dac_override=ep\" on the collectd binary.");
}
#endif
- ceph_daemons_print();
+ ceph_daemons_print();
- if (g_num_daemons < 1)
- {
- ERROR ("ceph plugin: No daemons configured. See the \"Daemon\" config option.");
- return ENOENT;
- }
+ if (g_num_daemons < 1) {
+ ERROR("ceph plugin: No daemons configured. See the \"Daemon\" config "
+ "option.");
+ return ENOENT;
+ }
- return cconn_main_loop(ASOK_REQ_VERSION);
+ return cconn_main_loop(ASOK_REQ_VERSION);
}
-static int ceph_shutdown(void)
-{
- for(size_t i = 0; i < g_num_daemons; ++i)
- {
- ceph_daemon_free(g_daemons[i]);
- }
- sfree(g_daemons);
- g_daemons = NULL;
- g_num_daemons = 0;
- DEBUG("ceph plugin: finished ceph_shutdown");
- return 0;
+static int ceph_shutdown(void) {
+ for (size_t i = 0; i < g_num_daemons; ++i) {
+ ceph_daemon_free(g_daemons[i]);
+ }
+ sfree(g_daemons);
+ g_daemons = NULL;
+ g_num_daemons = 0;
+ DEBUG("ceph plugin: finished ceph_shutdown");
+ return 0;
}
-void module_register(void)
-{
- plugin_register_complex_config("ceph", ceph_config);
- plugin_register_init("ceph", ceph_init);
- plugin_register_read("ceph", ceph_read);
- plugin_register_shutdown("ceph", ceph_shutdown);
+void module_register(void) {
+ plugin_register_complex_config("ceph", ceph_config);
+ plugin_register_init("ceph", ceph_init);
+ plugin_register_read("ceph", ceph_read);
+ plugin_register_shutdown("ceph", ceph_shutdown);
}
/* vim: set sw=4 sts=4 et : */
projects / collectd.git / blobdiff