* Phoenix Kayo <kayo.k11.4 at gmail.com>
**/
-#define _XOPEN_SOURCE 500
-
#include "collectd.h"
#include "common.h"
#include "plugin.h"
#include <pthread.h>
#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
+#include <netdb.h>
+#include <poll.h>
#include "pinba.pb-c.h"
# define PINBA_DEFAULT_PORT 12345 /* FIXME */
#endif
+#ifndef PINBA_MAX_SOCKETS
+# define PINBA_MAX_SOCKETS 16
+#endif
+
+#ifndef NI_MAXSERV
+# define NI_MAXSERV 32
+#endif
+
/*
* Private data structures
*/
double mem_peak;
};
-typedef struct _pinba_socket_ pinba_socket;
-struct _pinba_socket_ {
+struct pinba_socket_s {
int listen_sock;
struct event *accept_event;
+
+ struct pollfd fd[PINBA_MAX_SOCKETS];
+ nfds_t fd_num;
};
+typedef struct pinba_socket_s pinba_socket_t;
typedef double pinba_time_t;
typedef uint32_t pinba_size_t;
-static pinba_time_t now (void)
-{
- static struct timeval tv;
-
- gettimeofday (&tv, /* tz = */ NULL);
-
- return (double)tv.tv_sec+((double)tv.tv_usec/(double)1000000);
-}
-
-static pthread_rwlock_t temp_lock;
-
static struct event_base *temp_base = NULL;
static pinba_socket_t *temp_sock = NULL;
static pthread_t temp_thrd;
-typedef struct _pinba_statnode_ pinba_statnode;
-struct _pinba_statnode_{
+typedef struct pinba_statnode_s pinba_statnode_t;
+struct pinba_statnode_s
+{
/* collector name */
- char* name;
+ char *name;
/* query data */
char *host;
char *server;
pinba_size_t mem_peak;
};
-static unsigned int stat_nodes_count=0;
-
-static pinba_statnode *stat_nodes = NULL;
+static pinba_statnode_t *stat_nodes = NULL;
+static unsigned int stat_nodes_num = 0;
+static pthread_mutex_t stat_nodes_lock;
char service_status=0;
char *service_address = PINBA_DEFAULT_ADDRESS;
unsigned int service_port=PINBA_DEFAULT_PORT;
-static void service_statnode_reset (pinba_statnode *node) /* {{{ */
+static pinba_time_t now (void) /* {{{ */
+{
+ static struct timeval tv;
+
+ gettimeofday (&tv, /* tz = */ NULL);
+
+ return (double)tv.tv_sec+((double)tv.tv_usec/(double)1000000);
+} /* }}} */
+
+static void service_statnode_reset (pinba_statnode_t *node) /* {{{ */
{
node->last_coll=now();
node->req_count=0;
const char *server,
const char *script)
{
- pinba_statnode *node;
+ pinba_statnode_t *node;
DEBUG("adding node `%s' to collector { %s, %s, %s }", name, host?host:"", server?server:"", script?script:"");
- stat_nodes=realloc(stat_nodes, sizeof(pinba_statnode)*(stat_nodes_count+1));
+ stat_nodes=realloc(stat_nodes, sizeof(pinba_statnode_t)*(stat_nodes_num+1));
if(!stat_nodes){
ERROR("Realloc failed!");
exit(-1);
}
- node=&stat_nodes[stat_nodes_count];
+ node=&stat_nodes[stat_nodes_num];
/* reset stat data */
service_statnode_reset(node);
strset(&node->script, script);
/* increment counter */
- stat_nodes_count++;
+ stat_nodes_num++;
} /* }}} void service_statnode_add */
static void service_statnode_free (void)
{
unsigned int i;
- if(stat_nodes_count < 1)
+ if(stat_nodes_num < 1)
return;
- for (i = 0; i < stat_nodes_count; i++)
+ for (i = 0; i < stat_nodes_num; i++)
{
sfree (stat_nodes[i].name);
sfree (stat_nodes[i].host);
}
sfree (stat_nodes);
- stat_nodes_count = 0;
+ stat_nodes_num = 0;
- pthread_rwlock_destroy (&temp_lock);
+ pthread_mutex_destroy (&stat_nodes_lock);
}
static void service_statnode_init (void)
service_statnode_free();
DEBUG("initializing collector..");
- pthread_rwlock_init(&temp_lock, 0);
+ pthread_mutex_init(&stat_nodes_lock, 0);
}
static void service_statnode_begin (void)
{
service_statnode_init();
- pthread_rwlock_wrlock(&temp_lock);
+ pthread_mutex_lock(&stat_nodes_lock);
service_statnode_add("total", NULL, NULL, NULL);
}
static void service_statnode_end (void)
{
- pthread_rwlock_unlock(&temp_lock);
+ pthread_mutex_unlock(&stat_nodes_lock);
}
static unsigned int service_statnode_collect (pinba_statres *res, /* {{{ */
unsigned int index)
{
- pinba_statnode* node;
+ pinba_statnode_t* node;
pinba_time_t delta;
- if (stat_nodes_count == 0)
+ if (stat_nodes_num == 0)
return 0;
/* begin collecting */
if (index == 0)
- pthread_rwlock_wrlock (&temp_lock);
+ pthread_mutex_lock (&stat_nodes_lock);
/* end collecting */
- if (index >= stat_nodes_count)
+ if (index >= stat_nodes_num)
{
- pthread_rwlock_unlock (&temp_lock);
+ pthread_mutex_unlock (&stat_nodes_lock);
return 0;
}
return (index + 1);
} /* }}} unsigned int service_statnode_collect */
-static void service_statnode_process (pinba_statnode *node,
+static void service_statnode_process (pinba_statnode_t *node,
Pinba__Request* request)
{
node->req_count++;
{
unsigned int i;
- pthread_rwlock_wrlock (&temp_lock);
+ pthread_mutex_lock (&stat_nodes_lock);
- for (i = 0; i < stat_nodes_count; i++)
+ for (i = 0; i < stat_nodes_num; i++)
{
if(stat_nodes[i].host && strcmp(request->hostname, stat_nodes[i].host))
continue;
service_statnode_process(&stat_nodes[i], request);
}
- pthread_rwlock_unlock(&temp_lock);
+ pthread_mutex_unlock(&stat_nodes_lock);
}
static void *pinba_main (void *arg)
} /* while (42) */
} /* }}} void pinba_udp_read_callback_fn */
-static pinba_socket_t *pinba_socket_open (const char *ip, /* {{{ */
- int listen_port)
+static int pb_add_socket (pinba_socket_t *s, /* {{{ */
+ const struct addrinfo *ai)
{
- struct sockaddr_in addr;
- pinba_socket_t *s;
- int sfd, flags, yes = 1;
-
- if ((sfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
- ERROR("socket() failed: %s (%d)", strerror(errno), errno);
- return NULL;
+ int fd;
+ int tmp;
+ int status;
+
+ if (s->fd_num == PINBA_MAX_SOCKETS)
+ {
+ WARNING ("pinba plugin: Sorry, you have hit the built-in limit of "
+ "%i sockets. Please complain to the collectd developers so we can "
+ "raise the limit.", PINBA_MAX_SOCKETS);
+ return (-1);
}
-
- if ((flags = fcntl(sfd, F_GETFL, 0)) < 0 || fcntl(sfd, F_SETFL, flags | O_NONBLOCK) < 0) {
- close(sfd);
- return NULL;
+
+ fd = socket (ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ if (fd < 0)
+ {
+ char errbuf[1024];
+ ERROR ("pinba plugin: socket(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (0);
}
-
- if(setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) {
- close(sfd);
- return NULL;
+
+ tmp = 1;
+ status = setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp));
+ if (status != 0)
+ {
+ char errbuf[1024];
+ WARNING ("pinba plugin: setsockopt(SO_REUSEADDR) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
}
-
- s = (pinba_socket_t *)calloc(1, sizeof(pinba_socket_t));
- if (!s) {
- return NULL;
+
+ status = bind (fd, ai->ai_addr, ai->ai_addrlen);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("pinba plugin: bind(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (0);
}
- s->listen_sock = sfd;
-
- memset(&addr, 0, sizeof(addr));
-
- addr.sin_family = AF_INET;
- addr.sin_port = htons(listen_port);
- addr.sin_addr.s_addr = htonl(INADDR_ANY);
-
- if (ip && *ip) {
- struct in_addr tmp;
-
- if (inet_aton(ip, &tmp)) {
- addr.sin_addr.s_addr = tmp.s_addr;
- } else {
- WARNING("inet_aton(%s) failed, listening on ANY IP-address", ip);
- }
+
+ s->fd[s->fd_num].fd = fd;
+ s->fd[s->fd_num].events = POLLIN | POLLPRI;
+ s->fd[s->fd_num].revents = 0;
+ s->fd_num++;
+
+ return (0);
+} /* }}} int pb_add_socket */
+
+static pinba_socket_t *pinba_socket_open (const char *node, /* {{{ */
+ int listen_port)
+{
+ pinba_socket_t *s;
+ struct addrinfo *ai_list;
+ struct addrinfo *ai_ptr;
+ struct addrinfo ai_hints;
+ int status;
+
+ char service[NI_MAXSERV]; /* FIXME */
+ snprintf (service, sizeof (service), "%i", listen_port);
+
+ memset (&ai_hints, 0, sizeof (ai_hints));
+ ai_hints.ai_flags = AI_PASSIVE;
+ ai_hints.ai_family = AF_UNSPEC;
+ ai_hints.ai_socktype = SOCK_DGRAM;
+ ai_hints.ai_addr = NULL;
+ ai_hints.ai_canonname = NULL;
+ ai_hints.ai_next = NULL;
+
+ ai_list = NULL;
+ status = getaddrinfo (node, service,
+ &ai_hints, &ai_list);
+ if (status != 0)
+ {
+ ERROR ("pinba plugin: getaddrinfo(3) failed: %s",
+ gai_strerror (status));
+ return (NULL);
}
-
- if (bind(s->listen_sock, (struct sockaddr *)&addr, sizeof(addr))) {
- pinba_socket_free(s);
- ERROR("bind() failed: %s (%d)", strerror(errno), errno);
- return NULL;
+ assert (ai_list != NULL);
+
+ s = malloc (sizeof (*s));
+ if (s != NULL)
+ {
+ freeaddrinfo (ai_list);
+ ERROR ("pinba plugin: malloc failed.");
+ return (NULL);
}
+ memset (s, 0, sizeof (*s));
+
+ for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
+ {
+ status = pb_add_socket (s, ai_ptr);
+ if (status != 0)
+ break;
+ } /* for (ai_list) */
- s->accept_event = (struct event *)calloc(1, sizeof(struct event));
- if (!s->accept_event) {
- ERROR("calloc() failed: %s (%d)", strerror(errno), errno);
- pinba_socket_free(s);
- return NULL;
+ freeaddrinfo (ai_list);
+
+ if (s->fd_num < 1)
+ {
+ WARNING ("pinba plugin: Unable to open socket for address %s.", node);
+ sfree (s);
+ s = NULL;
}
-
- event_set(s->accept_event, s->listen_sock, EV_READ | EV_PERSIST, pinba_udp_read_callback_fn, s);
- event_base_set(temp_base, s->accept_event);
- event_add(s->accept_event, NULL);
-
- return s;
+
+ return (s);
} /* }}} pinba_socket_open */
static int service_cleanup (void)
{
DEBUG("closing socket..");
if(temp_sock){
- pthread_rwlock_wrlock(&temp_lock);
+ pthread_mutex_lock(&stat_nodes_lock);
pinba_socket_free(temp_sock);
- pthread_rwlock_unlock(&temp_lock);
+ pthread_mutex_unlock(&stat_nodes_lock);
}
DEBUG("shutdowning event..");
service_statnode_end();
service_config(pinba_address, pinba_port);
+ return (0);
} /* int pinba_config */
static int plugin_init (void)
projects / collectd.git / blobdiff