* collectd - src/gmond.c
* Copyright (C) 2009-2015 Florian octo Forster
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; only version 2 of the License is applicable.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* Authors:
* Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
+
#include "plugin.h"
#include "common.h"
#include "configfile.h"
#include "utils_avltree.h"
-#if HAVE_PTHREAD_H
-# include <pthread.h>
-#endif
-#if HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
#if HAVE_NETDB_H
# include <netdb.h>
#endif
struct metric_map_s
{
- char *ganglia_name;
- char *type;
- char *type_instance;
- char *ds_name;
- int ds_type;
- int ds_index;
+ char *ganglia_name;
+ char *type;
+ char *type_instance;
+ char *ds_name;
+ int ds_type;
+ size_t ds_index;
};
typedef struct metric_map_s metric_map_t;
return (NULL);
/* Look up the DS type and ds_index. */
- if ((map[i].ds_type < 0) || (map[i].ds_index < 0)) /* {{{ */
+ if (map[i].ds_type < 0) /* {{{ */
{
const data_set_t *ds;
}
else
{
- int j;
+ size_t j;
for (j = 0; j < ds->ds_num; j++)
if (strcasecmp (ds->ds[j].name, map[i].ds_name) == 0)
size_t *ret_sockets_num,
const char *node, const char *service, int listen)
{
- struct addrinfo ai_hints;
struct addrinfo *ai_list;
- struct addrinfo *ai_ptr;
int ai_return;
socket_entry_t *sockets = NULL;
if (*ret_sockets != NULL)
return (EINVAL);
- memset (&ai_hints, 0, sizeof (ai_hints));
- ai_hints.ai_flags = 0;
-#ifdef AI_PASSIVE
- ai_hints.ai_flags |= AI_PASSIVE;
-#endif
-#ifdef AI_ADDRCONFIG
- ai_hints.ai_flags |= AI_ADDRCONFIG;
-#endif
- ai_hints.ai_family = AF_UNSPEC;
- ai_hints.ai_socktype = SOCK_DGRAM;
- ai_hints.ai_protocol = IPPROTO_UDP;
+ struct addrinfo ai_hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_flags = AI_ADDRCONFIG | AI_PASSIVE,
+ .ai_protocol = IPPROTO_UDP,
+ .ai_socktype = SOCK_DGRAM
+ };
ai_return = getaddrinfo (node, service, &ai_hints, &ai_list);
if (ai_return != 0)
return (-1);
}
- for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) /* {{{ */
+ for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) /* {{{ */
{
socket_entry_t *tmp;
if (ai_ptr->ai_family == AF_INET)
{
struct sockaddr_in *addr;
- struct ip_mreq mreq;
int loop;
addr = (struct sockaddr_in *) ai_ptr->ai_addr;
}
loop = 1;
- setsockopt (sockets[sockets_num].fd, IPPROTO_IP, IP_MULTICAST_LOOP,
+ status = setsockopt (sockets[sockets_num].fd, IPPROTO_IP, IP_MULTICAST_LOOP,
(void *) &loop, sizeof (loop));
+ if (status != 0)
+ {
+ char errbuf[1024];
+ WARNING ("gmond plugin: setsockopt(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
+
+ struct ip_mreq mreq = {
+ .imr_multiaddr.s_addr = addr->sin_addr.s_addr,
+ .imr_interface.s_addr = htonl (INADDR_ANY)
+ };
- memset (&mreq, 0, sizeof (mreq));
- mreq.imr_multiaddr.s_addr = addr->sin_addr.s_addr;
- mreq.imr_interface.s_addr = htonl (INADDR_ANY);
- setsockopt (sockets[sockets_num].fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ status = setsockopt (sockets[sockets_num].fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
(void *) &mreq, sizeof (mreq));
+ if (status != 0)
+ {
+ char errbuf[1024];
+ WARNING ("gmond plugin: setsockopt(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
} /* if (ai_ptr->ai_family == AF_INET) */
else if (ai_ptr->ai_family == AF_INET6)
{
struct sockaddr_in6 *addr;
- struct ipv6_mreq mreq;
int loop;
addr = (struct sockaddr_in6 *) ai_ptr->ai_addr;
}
loop = 1;
- setsockopt (sockets[sockets_num].fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
+ status = setsockopt (sockets[sockets_num].fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
(void *) &loop, sizeof (loop));
+ if (status != 0)
+ {
+ char errbuf[1024];
+ WARNING ("gmond plugin: setsockopt(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
+
+ struct ipv6_mreq mreq = {
+ .ipv6mr_interface = 0 /* any */
+ };
- memset (&mreq, 0, sizeof (mreq));
memcpy (&mreq.ipv6mr_multiaddr,
&addr->sin6_addr, sizeof (addr->sin6_addr));
- mreq.ipv6mr_interface = 0; /* any */
- setsockopt (sockets[sockets_num].fd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
+ status = setsockopt (sockets[sockets_num].fd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
(void *) &mreq, sizeof (mreq));
+ if (status != 0)
+ {
+ char errbuf[1024];
+ WARNING ("gmond plugin: setsockopt(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
} /* if (ai_ptr->ai_family == AF_INET6) */
sockets_num++;
static int request_meta_data (const char *host, const char *name) /* {{{ */
{
- Ganglia_metadata_msg msg;
- char buffer[BUFF_SIZE];
+ Ganglia_metadata_msg msg = { 0 };
+ char buffer[BUFF_SIZE] = { 0 };
unsigned int buffer_size;
XDR xdr;
- size_t i;
-
- memset (&msg, 0, sizeof (msg));
msg.id = gmetadata_request;
msg.Ganglia_metadata_msg_u.grequest.metric_id.host = strdup (host);
return (-1);
}
- memset (buffer, 0, sizeof (buffer));
xdrmem_create (&xdr, buffer, sizeof (buffer), XDR_ENCODE);
if (!xdr_Ganglia_metadata_msg (&xdr, &msg))
host, name);
pthread_mutex_lock (&mc_send_sockets_lock);
- for (i = 0; i < mc_send_sockets_num; i++)
+ for (size_t i = 0; i < mc_send_sockets_num; i++)
{
ssize_t status = sendto (mc_send_sockets[i].fd, buffer, (size_t) buffer_size,
/* flags = */ 0,
return (se);
/* insert new entry */
- se = (staging_entry_t *) malloc (sizeof (*se));
+ se = calloc (1, sizeof (*se));
if (se == NULL)
return (NULL);
- memset (se, 0, sizeof (*se));
sstrncpy (se->key, key, sizeof (se->key));
se->flags = 0;
static int staging_entry_update (const char *host, const char *name, /* {{{ */
const char *type, const char *type_instance,
- int ds_index, int ds_type, value_t value)
+ size_t ds_index, int ds_type, value_t value)
{
const data_set_t *ds;
staging_entry_t *se;
if (ds->ds_num <= ds_index)
{
- ERROR ("gmond plugin: Invalid index %i: %s has only %i data source(s).",
+ ERROR ("gmond plugin: Invalid index %zu: %s has only %zu data source(s).",
ds_index, ds->type, ds->ds_num);
return (-1);
}
msg_meta = msg->Ganglia_metadata_msg_u.gfull;
- if (msg_meta.metric.tmax <= 0)
+ if (msg_meta.metric.tmax == 0)
return (-1);
map = metric_lookup (msg_meta.metric_id.name);
case gmetric_float:
case gmetric_double:
{
- Ganglia_value_msg msg;
+ Ganglia_value_msg msg = { 0 };
- memset (&msg, 0, sizeof (msg));
if (xdr_Ganglia_value_msg (&xdr, &msg))
mc_handle_value_msg (&msg);
break;
case gmetadata_full:
case gmetadata_request:
{
- Ganglia_metadata_msg msg;
- memset (&msg, 0, sizeof (msg));
+ Ganglia_metadata_msg msg = { 0 };
if (xdr_Ganglia_metadata_msg (&xdr, &msg))
mc_handle_metadata_msg (&msg);
break;
{
socket_entry_t *mc_receive_socket_entries;
int status;
- size_t i;
mc_receive_socket_entries = NULL;
status = create_sockets (&mc_receive_socket_entries, &mc_receive_sockets_num,
if (mc_receive_sockets == NULL)
{
ERROR ("gmond plugin: calloc failed.");
- for (i = 0; i < mc_receive_sockets_num; i++)
+ for (size_t i = 0; i < mc_receive_sockets_num; i++)
close (mc_receive_socket_entries[i].fd);
free (mc_receive_socket_entries);
mc_receive_socket_entries = NULL;
return ((void *) -1);
}
- for (i = 0; i < mc_receive_sockets_num; i++)
+ for (size_t i = 0; i < mc_receive_sockets_num; i++)
{
mc_receive_sockets[i].fd = mc_receive_socket_entries[i].fd;
mc_receive_sockets[i].events = POLLIN | POLLPRI;
break;
}
- for (i = 0; i < mc_receive_sockets_num; i++)
+ for (size_t i = 0; i < mc_receive_sockets_num; i++)
{
if (mc_receive_sockets[i].revents != 0)
mc_handle_socket (mc_receive_sockets + i);
return (0);
} /* }}} int mc_receive_thread_stop */
-/*
+/*
* Config:
*
* <Plugin gmond>
static int gmond_config_add_metric (oconfig_item_t *ci) /* {{{ */
{
metric_map_t *map;
- int i;
if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
{
return (-1);
}
- for (i = 0; i < ci->children_num; i++)
+ for (int i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
if (strcasecmp ("Type", child->key) == 0)
static int gmond_config (oconfig_item_t *ci) /* {{{ */
{
- int i;
-
- for (i = 0; i < ci->children_num; i++)
+ for (int i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
if (strcasecmp ("MCReceiveFrom", child->key) == 0)
(mc_receive_port != NULL) ? mc_receive_port : MC_RECEIVE_PORT_DEFAULT,
/* listen = */ 0);
- staging_tree = c_avl_create ((void *) strcmp);
+ staging_tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
if (staging_tree == NULL)
{
ERROR ("gmond plugin: c_avl_create failed.");
static int gmond_shutdown (void) /* {{{ */
{
- size_t i;
-
mc_receive_thread_stop ();
pthread_mutex_lock (&mc_send_sockets_lock);
- for (i = 0; i < mc_send_sockets_num; i++)
+ for (size_t i = 0; i < mc_send_sockets_num; i++)
{
close (mc_send_sockets[i].fd);
mc_send_sockets[i].fd = -1;
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