int gid, int egid) /* {{{ */
{
int status;
- char errbuf[1024];
#if HAVE_SETGROUPS
if (getuid() == 0) {
status = setgid(gid);
if (status != 0) {
- ERROR("exec plugin: setgid (%i) failed: %s", gid,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: setgid (%i) failed: %s", gid, STRERRNO);
exit(-1);
}
if (egid != -1) {
status = setegid(egid);
if (status != 0) {
- ERROR("exec plugin: setegid (%i) failed: %s", egid,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: setegid (%i) failed: %s", egid, STRERRNO);
exit(-1);
}
}
status = setuid(uid);
if (status != 0) {
- ERROR("exec plugin: setuid (%i) failed: %s", uid,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: setuid (%i) failed: %s", uid, STRERRNO);
exit(-1);
}
execvp(pl->exec, pl->argv);
- ERROR("exec plugin: Failed to execute ``%s'': %s", pl->exec,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: Failed to execute ``%s'': %s", pl->exec, STRERRNO);
exit(-1);
} /* void exec_child }}} */
static int create_pipe(int fd_pipe[2]) /* {{{ */
{
- char errbuf[1024];
int status;
status = pipe(fd_pipe);
if (status != 0) {
- ERROR("exec plugin: pipe failed: %s",
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: pipe failed: %s", STRERRNO);
return -1;
}
int fd_pipe_in[2] = {-1, -1};
int fd_pipe_out[2] = {-1, -1};
int fd_pipe_err[2] = {-1, -1};
- char errbuf[1024];
int status;
int pid;
status = getpwnam_r(pl->user, &sp, nambuf, sizeof(nambuf), &sp_ptr);
if (status != 0) {
ERROR("exec plugin: Failed to get user information for user ``%s'': %s",
- pl->user, sstrerror(status, errbuf, sizeof(errbuf)));
+ pl->user, STRERROR(status));
goto failed;
}
if (status != 0) {
ERROR("exec plugin: Failed to get group information "
"for group ``%s'': %s",
- pl->group, sstrerror(status, errbuf, sizeof(errbuf)));
+ pl->group, STRERROR(status));
goto failed;
}
if (gr_ptr == NULL) {
pid = fork();
if (pid < 0) {
- ERROR("exec plugin: fork failed: %s",
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: fork failed: %s", STRERRNO);
goto failed;
} else if (pid == 0) {
int fd_num;
fh = fdopen(fd, "w");
if (fh == NULL) {
- char errbuf[1024];
- ERROR("exec plugin: fdopen (%i) failed: %s", fd,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("exec plugin: fdopen (%i) failed: %s", fd, STRERRNO);
kill(pid, SIGTERM);
close(fd);
sfree(arg);
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
- plugin_thread_create(&t, &attr, exec_read_one, (void *)pl, "exec read");
+ int status =
+ plugin_thread_create(&t, &attr, exec_read_one, (void *)pl, "exec read");
+ if (status != 0) {
+ ERROR("exec plugin: plugin_thread_create failed.");
+ }
pthread_attr_destroy(&attr);
} /* for (pl) */
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
- plugin_thread_create(&t, &attr, exec_notification_one, (void *)pln,
- "exec notify");
+ int status = plugin_thread_create(&t, &attr, exec_notification_one,
+ (void *)pln, "exec notify");
+ if (status != 0) {
+ ERROR("exec plugin: plugin_thread_create failed.");
+ }
pthread_attr_destroy(&attr);
} /* for (pl) */
#endif
#define FUNC_ERROR(func) \
do { \
- char errbuf[1024]; \
- ERROR("powerdns plugin: %s failed: %s", func, \
- sstrerror(errno, errbuf, sizeof(errbuf))); \
+ ERROR("powerdns plugin: %s failed: %s", func, STRERRNO); \
} while (0)
#define SOCK_ERROR(func, sockpath) \
do { \
- char errbuf[1024]; \
ERROR("powerdns plugin: Socket `%s` %s failed: %s", sockpath, func, \
- sstrerror(errno, errbuf, sizeof(errbuf))); \
+ STRERRNO); \
} while (0)
#define SERVER_SOCKET LOCALSTATEDIR "/run/pdns.controlsocket"
plugin_dispatch_values(&vl);
} /* }}} static void submit */
- static int powerdns_get_data_dgram(list_item_t *item, /* {{{ */
- char **ret_buffer, size_t *ret_buffer_size) {
+ static int powerdns_get_data_dgram(list_item_t *item, char **ret_buffer) {
+ /* {{{ */
int sd;
int status;
buffer[buffer_size - 1] = 0;
*ret_buffer = buffer;
- *ret_buffer_size = buffer_size;
-
return 0;
} /* }}} int powerdns_get_data_dgram */
- static int powerdns_get_data_stream(list_item_t *item, /* {{{ */
- char **ret_buffer,
- size_t *ret_buffer_size) {
+ static int powerdns_get_data_stream(list_item_t *item, char **ret_buffer) {
+ /* {{{ */
int sd;
int status;
if (status < 0) {
SOCK_ERROR("recv", item->sockaddr.sun_path);
break;
- } else if (status == 0)
+ } else if (status == 0) {
break;
+ }
buffer_new = realloc(buffer, buffer_size + status + 1);
if (buffer_new == NULL) {
FUNC_ERROR("realloc");
- status = -1;
+ status = ENOMEM;
break;
}
buffer = buffer_new;
} /* while (42) */
close(sd);
- if (status < 0) {
+ if (status != 0) {
sfree(buffer);
- } else {
- assert(status == 0);
- *ret_buffer = buffer;
- *ret_buffer_size = buffer_size;
+ return status;
}
- return status;
+ *ret_buffer = buffer;
+ return 0;
} /* }}} int powerdns_get_data_stream */
- static int powerdns_get_data(list_item_t *item, char **ret_buffer,
- size_t *ret_buffer_size) {
+ static int powerdns_get_data(list_item_t *item, char **ret_buffer) {
if (item->socktype == SOCK_DGRAM)
- return powerdns_get_data_dgram(item, ret_buffer, ret_buffer_size);
+ return powerdns_get_data_dgram(item, ret_buffer);
else if (item->socktype == SOCK_STREAM)
- return powerdns_get_data_stream(item, ret_buffer, ret_buffer_size);
+ return powerdns_get_data_stream(item, ret_buffer);
else {
ERROR("powerdns plugin: Unknown socket type: %i", (int)item->socktype);
return -1;
static int powerdns_read_server(list_item_t *item) /* {{{ */
{
- char *buffer = NULL;
- size_t buffer_size = 0;
- int status;
-
- char *dummy;
- char *saveptr;
-
- char *key;
- char *value;
-
- const char *const *fields;
- int fields_num;
-
if (item->command == NULL)
item->command = strdup(SERVER_COMMAND);
if (item->command == NULL) {
return -1;
}
- status = powerdns_get_data(item, &buffer, &buffer_size);
- if (status != 0)
- return -1;
+ char *buffer = NULL;
+ int status = powerdns_get_data(item, &buffer);
+ if (status != 0) {
+ ERROR("powerdns plugin: powerdns_get_data failed.");
+ return status;
+ }
+ if (buffer == NULL) {
+ return EINVAL;
+ }
+ const char *const *fields = default_server_fields;
+ int fields_num = default_server_fields_num;
if (item->fields_num != 0) {
fields = (const char *const *)item->fields;
fields_num = item->fields_num;
- } else {
- fields = default_server_fields;
- fields_num = default_server_fields_num;
}
assert(fields != NULL);
/* corrupt-packets=0,deferred-cache-inserts=0,deferred-cache-lookup=0,latency=0,packetcache-hit=0,packetcache-miss=0,packetcache-size=0,qsize-q=0,query-cache-hit=0,query-cache-miss=0,recursing-answers=0,recursing-questions=0,servfail-packets=0,tcp-answers=0,tcp-queries=0,timedout-packets=0,udp-answers=0,udp-queries=0,udp4-answers=0,udp4-queries=0,udp6-answers=0,udp6-queries=0,
*/
- dummy = buffer;
- saveptr = NULL;
+ char *dummy = buffer;
+ char *saveptr = NULL;
+ char *key;
while ((key = strtok_r(dummy, ",", &saveptr)) != NULL) {
dummy = NULL;
- value = strchr(key, '=');
+ char *value = strchr(key, '=');
if (value == NULL)
break;
static int powerdns_read_recursor(list_item_t *item) /* {{{ */
{
char *buffer = NULL;
- size_t buffer_size = 0;
int status;
char *dummy;
}
assert(item->command != NULL);
- status = powerdns_get_data(item, &buffer, &buffer_size);
+ status = powerdns_get_data(item, &buffer);
if (status != 0) {
ERROR("powerdns plugin: powerdns_get_data failed.");
return -1;
{
char **tmp = realloc(keys, (keys_num + 1) * sizeof(char *));
if (tmp == NULL) {
- char errbuf[1024];
- ERROR("rrdtool plugin: "
- "realloc failed: %s",
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("rrdtool plugin: realloc failed: %s", STRERRNO);
c_avl_iterator_destroy(iter);
sfree(keys);
return;
return -1;
}
- c_avl_get(cache, filename, (void *)&rc);
-
- if (rc == NULL) {
+ int status = c_avl_get(cache, filename, (void *)&rc);
+ if ((status != 0) || (rc == NULL)) {
rc = malloc(sizeof(*rc));
if (rc == NULL) {
pthread_mutex_unlock(&cache_lock);
values_new =
realloc((void *)rc->values, (rc->values_num + 1) * sizeof(char *));
if (values_new == NULL) {
- char errbuf[1024];
void *cache_key = NULL;
- sstrerror(errno, errbuf, sizeof(errbuf));
-
c_avl_remove(cache, filename, &cache_key, NULL);
pthread_mutex_unlock(&cache_lock);
- ERROR("rrdtool plugin: realloc failed: %s", errbuf);
+ ERROR("rrdtool plugin: realloc failed: %s", STRERRNO);
sfree(cache_key);
sfree(rc->values);
void *cache_key = strdup(filename);
if (cache_key == NULL) {
- char errbuf[1024];
- sstrerror(errno, errbuf, sizeof(errbuf));
-
pthread_mutex_unlock(&cache_lock);
- ERROR("rrdtool plugin: strdup failed: %s", errbuf);
+ ERROR("rrdtool plugin: strdup failed: %s", STRERRNO);
sfree(rc->values[0]);
sfree(rc->values);
return 0;
}
} else {
- char errbuf[1024];
- ERROR("rrdtool plugin: stat(%s) failed: %s", filename,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ ERROR("rrdtool plugin: stat(%s) failed: %s", filename, STRERRNO);
return -1;
}
} else if (!S_ISREG(statbuf.st_mode)) {
cache_flush_timeout = 0;
} else if (cache_flush_timeout < cache_timeout) {
INFO("rrdtool plugin: \"CacheFlush %.3f\" is less than \"CacheTimeout "
- "%.3f\". "
- "Ajusting \"CacheFlush\" to %.3f seconds.",
+ "%.3f\". Adjusting \"CacheFlush\" to %.3f seconds.",
CDTIME_T_TO_DOUBLE(cache_flush_timeout),
CDTIME_T_TO_DOUBLE(cache_timeout),
CDTIME_T_TO_DOUBLE(cache_timeout * 10));
} /* tbl_result_setup */
static void tbl_result_clear(tbl_result_t *res) {
+ if (res == NULL) {
+ return;
+ }
+
sfree(res->type);
sfree(res->instance_prefix);
} /* tbl_setup */
static void tbl_clear(tbl_t *tbl) {
+ if (tbl == NULL) {
+ return;
+ }
+
sfree(tbl->file);
sfree(tbl->sep);
sfree(tbl->plugin_name);
sfree(tbl->instance);
+ /* (tbl->results == NULL) -> (tbl->results_num == 0) */
+ assert((tbl->results != NULL) || (tbl->results_num == 0));
for (size_t i = 0; i < tbl->results_num; ++i)
tbl_result_clear(tbl->results + i);
sfree(tbl->results);
tmp = realloc(*var, ((*len) + num) * sizeof(**var));
if (NULL == tmp) {
- char errbuf[1024];
- log_err("realloc failed: %s.", sstrerror(errno, errbuf, sizeof(errbuf)));
+ log_err("realloc failed: %s.", STRERRNO);
return -1;
}
*var = tmp;
tbl_result_t *res =
realloc(tbl->results, (tbl->results_num + 1) * sizeof(*tbl->results));
if (res == NULL) {
- char errbuf[1024];
- log_err("realloc failed: %s.", sstrerror(errno, errbuf, sizeof(errbuf)));
+ log_err("realloc failed: %s.", STRERRNO);
return -1;
}
tbl_t *tbl = realloc(tables, (tables_num + 1) * sizeof(*tables));
if (NULL == tbl) {
- char errbuf[1024];
- log_err("realloc failed: %s.", sstrerror(errno, errbuf, sizeof(errbuf)));
+ log_err("realloc failed: %s.", STRERRNO);
return -1;
}
fh = fopen(tbl->file, "r");
if (NULL == fh) {
- char errbuf[1024];
- log_err("Failed to open file \"%s\": %s.", tbl->file,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ log_err("Failed to open file \"%s\": %s.", tbl->file, STRERRNO);
return -1;
}
}
if (0 != ferror(fh)) {
- char errbuf[1024];
- log_err("Failed to read from file \"%s\": %s.", tbl->file,
- sstrerror(errno, errbuf, sizeof(errbuf)));
+ log_err("Failed to read from file \"%s\": %s.", tbl->file, STRERRNO);
fclose(fh);
return -1;
}
#define OVS_DB_POLL_READ_BLOCK_SIZE 512 /* read block size (bytes) */
#define OVS_DB_DEFAULT_DB_NAME "Open_vSwitch"
+ #define OVS_DB_EVENT_NONE 0
#define OVS_DB_EVENT_TIMEOUT 5 /* event thread timeout (sec) */
#define OVS_DB_EVENT_TERMINATE 1
#define OVS_DB_EVENT_CONN_ESTABLISHED 2
}
/* try to connect to the server */
for (struct addrinfo *rp = result; rp != NULL; rp = rp->ai_next) {
- char errbuff[OVS_ERROR_BUFF_SIZE];
int sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (sock < 0) {
- sstrerror(errno, errbuff, sizeof(errbuff));
- OVS_DEBUG("socket(): %s", errbuff);
+ OVS_DEBUG("socket(): %s", STRERRNO);
continue;
}
if (connect(sock, rp->ai_addr, rp->ai_addrlen) < 0) {
close(sock);
- sstrerror(errno, errbuff, sizeof(errbuff));
- OVS_DEBUG("connect(): %s [family=%d]", errbuff, rp->ai_family);
+ OVS_DEBUG("connect(): %s [family=%d]", STRERRNO, rp->ai_family);
} else {
/* send notification to event thread */
- ovs_db_event_post(pdb, OVS_DB_EVENT_CONN_ESTABLISHED);
pdb->sock = sock;
+ ovs_db_event_post(pdb, OVS_DB_EVENT_CONN_ESTABLISHED);
break;
}
}
/* poll data */
while (ovs_db_poll_is_running(pdb)) {
- char errbuff[OVS_ERROR_BUFF_SIZE];
poll_fd.fd = pdb->sock;
int poll_ret = poll(&poll_fd, 1, /* ms */ OVS_DB_POLL_TIMEOUT * 1000);
if (poll_ret < 0) {
- sstrerror(errno, errbuff, sizeof(errbuff));
- OVS_ERROR("poll(): %s", errbuff);
+ OVS_ERROR("poll(): %s", STRERRNO);
break;
} else if (poll_ret == 0) {
OVS_DEBUG("poll(): timeout");
char buff[OVS_DB_POLL_READ_BLOCK_SIZE];
ssize_t nbytes = recv(poll_fd.fd, buff, sizeof(buff), 0);
if (nbytes < 0) {
- sstrerror(errno, errbuff, sizeof(errbuff));
- OVS_ERROR("recv(): %s", errbuff);
+ OVS_ERROR("recv(): %s", STRERRNO);
/* read error? Try to reconnect */
close(poll_fd.fd);
continue;
ts.tv_sec += (OVS_DB_EVENT_TIMEOUT);
int ret = pthread_cond_timedwait(&pdb->event_thread.cond,
&pdb->event_thread.mutex, &ts);
- if (!ret) {
+ if (!ret || ret == ETIMEDOUT) {
/* handle the event */
OVS_DEBUG("handle event %d", pdb->event_thread.value);
switch (pdb->event_thread.value) {
case OVS_DB_EVENT_CONN_ESTABLISHED:
if (pdb->cb.post_conn_init)
pdb->cb.post_conn_init(pdb);
+ /* reset event */
+ pdb->event_thread.value = OVS_DB_EVENT_NONE;
break;
case OVS_DB_EVENT_CONN_TERMINATED:
if (pdb->cb.post_conn_terminate)
pdb->cb.post_conn_terminate();
+ /* reset event */
+ pdb->event_thread.value = OVS_DB_EVENT_NONE;
+ break;
+ case OVS_DB_EVENT_NONE:
+ /* wait timeout */
+ OVS_DEBUG("no event received (timeout)");
break;
default:
OVS_DEBUG("unknown event received");
break;
}
- } else if (ret == ETIMEDOUT) {
- /* wait timeout */
- OVS_DEBUG("no event received (timeout)");
- continue;
} else {
/* unexpected error */
OVS_ERROR("pthread_cond_timedwait() failed");
return 0;
}
- /* Destroy EVENT thread */
- /* XXX: Must hold pdb->mutex when calling! */
- static int ovs_db_event_thread_destroy(ovs_db_t *pdb) {
+ /* Terminate EVENT thread */
+ static int ovs_db_event_thread_terminate(ovs_db_t *pdb) {
if (pthread_equal(pdb->event_thread.tid, (pthread_t){0})) {
- /* already destroyed */
+ /* already terminated */
return 0;
}
ovs_db_event_post(pdb, OVS_DB_EVENT_TERMINATE);
* performs some task (handles event) and releases it when
* while sleeping. Thus, if event thread exits, the mutex
* remains locked */
+ pdb->event_thread.tid = (pthread_t){0};
pthread_mutex_unlock(&pdb->event_thread.mutex);
+ return 0;
+ }
+
+ /* Destroy EVENT thread private data */
+ static void ovs_db_event_thread_data_destroy(ovs_db_t *pdb) {
+ /* destroy mutex */
pthread_mutex_destroy(&pdb->event_thread.mutex);
pthread_cond_destroy(&pdb->event_thread.cond);
- pdb->event_thread.tid = (pthread_t){0};
- return 0;
}
/* Initialize POLL thread */
if (pdb == NULL)
return -1;
+ /* stop event thread */
+ if (ovs_db_event_thread_terminate(pdb) < 0) {
+ OVS_ERROR("stop event thread failed");
+ ovs_db_ret = -1;
+ }
+
/* try to lock the structure before releasing */
if ((ret = pthread_mutex_lock(&pdb->mutex))) {
OVS_ERROR("pthread_mutex_lock() DB mutex lock failed (%d)", ret);
return -1;
}
- /* stop poll thread */
- if (ovs_db_event_thread_destroy(pdb) < 0) {
+ /* stop poll thread and destroy thread's private data */
+ if (ovs_db_poll_thread_destroy(pdb) < 0) {
OVS_ERROR("destroy poll thread failed");
ovs_db_ret = -1;
}
- /* stop event thread */
- if (ovs_db_poll_thread_destroy(pdb) < 0) {
- OVS_ERROR("stop event thread failed");
- ovs_db_ret = -1;
- }
+ /* destroy event thread private data */
+ ovs_db_event_thread_data_destroy(pdb);
pthread_mutex_unlock(&pdb->mutex);
projects / collectd.git / commitdiff