![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/pinba.c b/src/pinba.c
index 40cc55e560eda7af50aee64fbb6de3d9504b0169..6879733501cbedaa32cbfaa4afde3ca527771894 100644 (file)
--- a/src/pinba.c
+++ b/src/pinba.c
/**
- * collectd - src/pinba.c
+ * collectd - src/pinba.c (based on code from pinba_engine 0.0.5)
+ * Copyright (c) 2007-2009 Antony Dovgal
* Copyright (C) 2010 Phoenix Kayo
+ * Copyright (C) 2010 Florian 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
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
+ * Antony Dovgal <tony at daylessday.org>
* Phoenix Kayo <kayo.k11.4 at gmail.com>
+ * Florian Forster <octo at verplant.org>
**/
-#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"
-typedef uint8_t u_char;
-
-#include <event.h>
-
/*
- * Service declaration section
+ * Defines
*/
#ifndef PINBA_UDP_BUFFER_SIZE
# define PINBA_UDP_BUFFER_SIZE 65536
#endif
-typedef struct _pinba_statres_ pinba_statres;
-struct _pinba_statres_ {
- const char *name;
- double req_per_sec;
- double req_time;
- double ru_utime;
- double ru_stime;
- double doc_size;
- double mem_peak;
-};
+#ifndef PINBA_DEFAULT_NODE
+# define PINBA_DEFAULT_NODE "::0"
+#endif
-typedef struct _pinba_socket_ pinba_socket;
-struct _pinba_socket_ {
- int listen_sock;
- struct event *accept_event;
-};
+#ifndef PINBA_DEFAULT_SERVICE
+# define PINBA_DEFAULT_SERVICE "30002"
+#endif
-typedef double pinba_time;
-typedef uint32_t pinba_size;
+#ifndef PINBA_MAX_SOCKETS
+# define PINBA_MAX_SOCKETS 16
+#endif
-static pinba_time now (void)
+/*
+ * Private data structures
+ */
+/* {{{ */
+struct pinba_socket_s
{
- 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;
+ struct pollfd fd[PINBA_MAX_SOCKETS];
+ nfds_t fd_num;
+};
+typedef struct pinba_socket_s pinba_socket_t;
-static pinba_socket *temp_sock = NULL;
+/* Fixed point counter value. n is the decimal part multiplied by 10^9. */
+struct float_counter_s
+{
+ uint64_t i;
+ uint64_t n; /* nanos */
+};
+typedef struct float_counter_s float_counter_t;
-static pthread_t temp_thrd;
+struct pinba_statnode_s
+{
+ /* collector name, used as plugin instance */
+ char *name;
-typedef struct _pinba_statnode_ pinba_statnode;
-struct _pinba_statnode_{
- /* collector name */
- char* name;
/* query data */
char *host;
char *server;
char *script;
- /* collected data */
- pinba_time last_coll;
- pinba_size req_count;
- pinba_time req_time;
- pinba_time ru_utime;
- pinba_time ru_stime;
- pinba_size doc_size;
- pinba_size mem_peak;
+
+ derive_t req_count;
+
+ float_counter_t req_time;
+ float_counter_t ru_utime;
+ float_counter_t ru_stime;
+
+ derive_t doc_size;
+ gauge_t mem_peak;
};
+typedef struct pinba_statnode_s pinba_statnode_t;
+/* }}} */
-static unsigned int stat_nodes_count=0;
+/*
+ * Module global variables
+ */
+/* {{{ */
+static pinba_statnode_t *stat_nodes = NULL;
+static unsigned int stat_nodes_num = 0;
+static pthread_mutex_t stat_nodes_lock;
-static pinba_statnode *stat_nodes = NULL;
+static char *conf_node = NULL;
+static char *conf_service = NULL;
-char service_status=0;
-char *service_address = PINBA_DEFAULT_ADDRESS;
-unsigned int service_port=PINBA_DEFAULT_PORT;
+static _Bool collector_thread_running = 0;
+static _Bool collector_thread_do_shutdown = 0;
+static pthread_t collector_thread_id;
+/* }}} */
-static void service_statnode_reset (pinba_statnode *node) /* {{{ */
+/*
+ * Functions
+ */
+static void float_counter_add (float_counter_t *fc, float val) /* {{{ */
{
- node->last_coll=now();
- node->req_count=0;
- node->req_time=0.0;
- node->ru_utime=0.0;
- node->ru_stime=0.0;
- node->doc_size=0;
- node->mem_peak=0;
-} /* }}} void service_statnode_reset */
+ uint64_t tmp;
+
+ if (val < 0.0)
+ return;
+
+ tmp = (uint64_t) val;
+ val -= (double) tmp;
+
+ fc->i += tmp;
+ fc->n += (uint64_t) ((val * 1000000000.0) + .5);
+
+ if (fc->n >= 1000000000)
+ {
+ fc->i += 1;
+ fc->n -= 1000000000;
+ assert (fc->n < 1000000000);
+ }
+} /* }}} void float_counter_add */
+
+static derive_t float_counter_get (const float_counter_t *fc, /* {{{ */
+ uint64_t factor)
+{
+ derive_t ret;
+
+ ret = (derive_t) (fc->i * factor);
+ ret += (derive_t) (fc->n / (1000000000 / factor));
+
+ return (ret);
+} /* }}} derive_t float_counter_get */
static void strset (char **str, const char *new) /* {{{ */
{
const char *server,
const char *script)
{
- pinba_statnode *node;
- DEBUG("adding node `%s' to collector { %s, %s, %s }", name, host?host:"", server?server:"", script?script:"");
+ pinba_statnode_t *node;
- stat_nodes=realloc(stat_nodes, sizeof(pinba_statnode)*(stat_nodes_count+1));
- if(!stat_nodes){
- ERROR("Realloc failed!");
- exit(-1);
+ node = realloc (stat_nodes,
+ sizeof (*stat_nodes) * (stat_nodes_num + 1));
+ if (node == NULL)
+ {
+ ERROR ("pinba plugin: realloc failed");
+ return;
}
-
- node=&stat_nodes[stat_nodes_count];
-
- /* reset stat data */
- service_statnode_reset(node);
+ stat_nodes = node;
+
+ node = stat_nodes + stat_nodes_num;
+ memset (node, 0, sizeof (*node));
/* reset strings */
- node->name=NULL;
- node->host=NULL;
- node->server=NULL;
- node->script=NULL;
+ node->name = NULL;
+ node->host = NULL;
+ node->server = NULL;
+ node->script = NULL;
+
+ node->mem_peak = NAN;
/* fill query data */
- strset(&node->name, name);
- strset(&node->host, host);
- strset(&node->server, server);
- strset(&node->script, script);
+ strset (&node->name, name);
+ strset (&node->host, host);
+ strset (&node->server, server);
+ 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)
- return;
-
- for (i = 0; i < stat_nodes_count; i++)
- {
- sfree (stat_nodes[i].name);
- sfree (stat_nodes[i].host);
- sfree (stat_nodes[i].server);
- sfree (stat_nodes[i].script);
- }
-
- sfree (stat_nodes);
- stat_nodes_count = 0;
-
- pthread_rwlock_destroy (&temp_lock);
-}
-
-static void service_statnode_init (void)
+/* Copy the data from the global "stat_nodes" list into the buffer pointed to
+ * by "res", doing the derivation in the process. Returns the next index or
+ * zero if the end of the list has been reached. */
+static unsigned int service_statnode_collect (pinba_statnode_t *res, /* {{{ */
+ unsigned int index)
{
- /* only total info collect by default */
- service_statnode_free();
+ pinba_statnode_t *node;
- DEBUG("initializing collector..");
- pthread_rwlock_init(&temp_lock, 0);
-}
-
-static void service_statnode_begin (void)
-{
- service_statnode_init();
- pthread_rwlock_wrlock(&temp_lock);
-
- service_statnode_add("total", NULL, NULL, NULL);
-}
-
-static void service_statnode_end (void)
-{
- pthread_rwlock_unlock(&temp_lock);
-}
-
-static unsigned int service_statnode_collect (pinba_statres *res,
- unsigned int i)
-{
- pinba_statnode* node;
-
- if(stat_nodes_count==0) return 0;
+ if (stat_nodes_num == 0)
+ return 0;
/* begin collecting */
- if(i==0){
- pthread_rwlock_wrlock(&temp_lock);
- }
-
- /* find non-empty node */
- //for(node=stat_nodes+i; node->req_count==0 && ++i<stat_nodes_count; node=stat_nodes+i);
+ if (index == 0)
+ pthread_mutex_lock (&stat_nodes_lock);
/* end collecting */
- if(i>=stat_nodes_count){
- pthread_rwlock_unlock(&temp_lock);
+ if (index >= stat_nodes_num)
+ {
+ pthread_mutex_unlock (&stat_nodes_lock);
return 0;
}
+
+ node = stat_nodes + index;
+ memcpy (res, node, sizeof (*res));
+
+ /* reset node */
+ node->mem_peak = NAN;
- node=stat_nodes+i;
-
- pinba_time delta=now()-node->last_coll;
-
- res->name=node->name;
-
- res->req_per_sec=node->req_count/delta;
-
- if(node->req_count==0)node->req_count=1;
- res->req_time=node->req_time/node->req_count;
- res->ru_utime=node->ru_utime/node->req_count;
- res->ru_stime=node->ru_stime/node->req_count;
- res->ru_stime=node->ru_stime/node->req_count;
- res->doc_size=node->doc_size/node->req_count;
- res->mem_peak=node->mem_peak/node->req_count;
-
- service_statnode_reset(node);
- return ++i;
-}
+ 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++;
- node->req_time+=request->request_time;
- node->ru_utime+=request->ru_utime;
- node->ru_stime+=request->ru_stime;
- node->doc_size+=request->document_size;
- node->mem_peak+=request->memory_peak;
-}
-
-static void service_process_request (Pinba__Request *request)
+
+ float_counter_add (&node->req_time, request->request_time);
+ float_counter_add (&node->ru_utime, request->ru_utime);
+ float_counter_add (&node->ru_stime, request->ru_stime);
+
+ node->doc_size += request->document_size;
+
+ if (isnan (node->mem_peak)
+ || (node->mem_peak < ((gauge_t) request->memory_peak)))
+ node->mem_peak = (gauge_t) request->memory_peak;
+
+} /* }}} void service_statnode_process */
+
+static void service_process_request (Pinba__Request *request) /* {{{ */
{
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))
+ if ((stat_nodes[i].host != NULL)
+ && (strcmp (request->hostname, stat_nodes[i].host) != 0))
continue;
- if(stat_nodes[i].server && strcmp(request->server_name, stat_nodes[i].server))
+
+ if ((stat_nodes[i].server != NULL)
+ && (strcmp (request->server_name, stat_nodes[i].server) != 0))
continue;
- if(stat_nodes[i].script && strcmp(request->script_name, stat_nodes[i].script))
+
+ if ((stat_nodes[i].script != NULL)
+ && (strcmp (request->script_name, stat_nodes[i].script) != 0))
continue;
service_statnode_process(&stat_nodes[i], request);
}
- pthread_rwlock_unlock(&temp_lock);
-}
+ pthread_mutex_unlock(&stat_nodes_lock);
+} /* }}} void service_process_request */
-static void *pinba_main (void *arg)
+static int pb_del_socket (pinba_socket_t *s, /* {{{ */
+ nfds_t index)
{
- DEBUG("entering listen-loop..");
-
- service_status=1;
- event_base_dispatch(temp_base);
-
- /* unreachable */
- return NULL;
-}
+ if (index >= s->fd_num)
+ return (EINVAL);
+
+ close (s->fd[index].fd);
+ s->fd[index].fd = -1;
+
+ /* When deleting the last element in the list, no memmove is necessary. */
+ if (index < (s->fd_num - 1))
+ {
+ memmove (&s->fd[index], &s->fd[index + 1],
+ sizeof (s->fd[0]) * (s->fd_num - (index + 1)));
+ }
-static void pinba_socket_free (pinba_socket *socket) /* {{{ */
+ s->fd_num--;
+ return (0);
+} /* }}} int pb_del_socket */
+
+static int pb_add_socket (pinba_socket_t *s, /* {{{ */
+ const struct addrinfo *ai)
{
- if (!socket)
- return;
-
- if (socket->listen_sock >= 0)
+ int fd;
+ int tmp;
+ int status;
+
+ if (s->fd_num == PINBA_MAX_SOCKETS)
{
- close(socket->listen_sock);
- socket->listen_sock = -1;
+ 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 (socket->accept_event)
+
+ fd = socket (ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ if (fd < 0)
{
- event_del(socket->accept_event);
- free(socket->accept_event);
- socket->accept_event = NULL;
+ char errbuf[1024];
+ ERROR ("pinba plugin: socket(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (0);
}
-
- free(socket);
-} /* }}} void pinba_socket_free */
-static int pinba_process_stats_packet (const unsigned char *buf,
- int buf_len)
-{
- Pinba__Request *request;
-
- request = pinba__request__unpack(NULL, buf_len, buf);
-
- if (!request) {
- return P_FAILURE;
- } else {
- service_process_request(request);
-
- pinba__request__free_unpacked(request, NULL);
-
- return P_SUCCESS;
+ 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)));
}
-}
-static void pinba_udp_read_callback_fn (int sock, short event, void *arg)
-{
- if (event & EV_READ) {
- int ret;
- unsigned char buf[PINBA_UDP_BUFFER_SIZE];
- struct sockaddr_in from;
- socklen_t fromlen = sizeof(struct sockaddr_in);
-
- ret = recvfrom(sock, buf, PINBA_UDP_BUFFER_SIZE-1, MSG_DONTWAIT, (struct sockaddr *)&from, &fromlen);
- if (ret > 0) {
- if (pinba_process_stats_packet(buf, ret) != P_SUCCESS) {
- DEBUG("failed to parse data received from %s", inet_ntoa(from.sin_addr));
- }
- } else if (ret < 0) {
- if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK) {
- return;
- }
- WARNING("recv() failed: %s (%d)", strerror(errno), errno);
- } else {
- WARNING("recv() returned 0");
- }
+ 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);
}
-}
-static pinba_socket *pinba_socket_open (const char *ip, /* {{{ */
- int listen_port)
+ 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, /* {{{ */
+ const char *service)
{
- struct sockaddr_in addr;
- pinba_socket *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;
- }
-
- if ((flags = fcntl(sfd, F_GETFL, 0)) < 0 || fcntl(sfd, F_SETFL, flags | O_NONBLOCK) < 0) {
- close(sfd);
- return NULL;
- }
-
- if(setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) {
- close(sfd);
- return NULL;
- }
-
- s = (pinba_socket *)calloc(1, sizeof(pinba_socket));
- if (!s) {
- return NULL;
- }
- 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);
- }
- }
-
- if (bind(s->listen_sock, (struct sockaddr *)&addr, sizeof(addr))) {
- pinba_socket_free(s);
- ERROR("bind() failed: %s (%d)", strerror(errno), errno);
- return NULL;
+ pinba_socket_t *s;
+ struct addrinfo *ai_list;
+ struct addrinfo *ai_ptr;
+ struct addrinfo ai_hints;
+ int status;
+
+ 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;
+
+ if (node == NULL)
+ node = PINBA_DEFAULT_NODE;
+
+ if (service == NULL)
+ service = PINBA_DEFAULT_SERVICE;
+
+ 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);
}
-
- 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;
+ 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) */
- 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;
-} /* }}} */
+ freeaddrinfo (ai_list);
-static int service_cleanup (void)
-{
- DEBUG("closing socket..");
- if(temp_sock){
- pthread_rwlock_wrlock(&temp_lock);
- pinba_socket_free(temp_sock);
- pthread_rwlock_unlock(&temp_lock);
+ if (s->fd_num < 1)
+ {
+ WARNING ("pinba plugin: Unable to open socket for address %s.", node);
+ sfree (s);
+ s = NULL;
}
-
- DEBUG("shutdowning event..");
- event_base_free(temp_base);
-
- DEBUG("shutting down..");
- return (0);
-}
+ return (s);
+} /* }}} pinba_socket_open */
-static int service_start(void)
+static void pinba_socket_free (pinba_socket_t *socket) /* {{{ */
{
- DEBUG("starting up..");
-
- DEBUG("initializing event..");
- temp_base = event_base_new();
-
- DEBUG("opening socket..");
-
- temp_sock = pinba_socket_open(service_address, service_port);
-
- if (!temp_sock) {
- service_cleanup();
- return 1;
- }
+ nfds_t i;
+
+ if (!socket)
+ return;
- if (pthread_create(&temp_thrd, NULL, pinba_main, NULL)) {
- service_cleanup();
- return 1;
+ for (i = 0; i < socket->fd_num; i++)
+ {
+ if (socket->fd[i].fd < 0)
+ continue;
+ close (socket->fd[i].fd);
+ socket->fd[i].fd = -1;
}
- return 0;
-}
+ sfree(socket);
+} /* }}} void pinba_socket_free */
-static int service_stop (void)
+static int pinba_process_stats_packet (const uint8_t *buffer, /* {{{ */
+ size_t buffer_size)
{
- pthread_cancel(temp_thrd);
- pthread_join(temp_thrd, NULL);
- service_status=0;
- DEBUG("terminating listen-loop..");
+ Pinba__Request *request;
- service_cleanup();
+ request = pinba__request__unpack (NULL, buffer_size, buffer);
- return 0;
-}
+ if (!request)
+ return (-1);
-static void service_config (const char *address, unsigned int port) /* {{{ */
+ service_process_request(request);
+ pinba__request__free_unpacked (request, NULL);
+
+ return (0);
+} /* }}} int pinba_process_stats_packet */
+
+static int pinba_udp_read_callback_fn (int sock) /* {{{ */
{
- int need_restart = 0;
+ uint8_t buffer[PINBA_UDP_BUFFER_SIZE];
+ size_t buffer_size;
+ int status;
- if (address && service_address && (strcmp(service_address, address) != 0))
+ while (42)
{
- strset (&service_address, address);
- need_restart++;
- }
+ buffer_size = sizeof (buffer);
+ status = recvfrom (sock, buffer, buffer_size - 1, MSG_DONTWAIT, /* from = */ NULL, /* from len = */ 0);
+ if (status < 0)
+ {
+ char errbuf[1024];
+
+ if ((errno == EINTR)
+#ifdef EWOULDBLOCK
+ || (errno == EWOULDBLOCK)
+#endif
+ || (errno == EAGAIN))
+ {
+ continue;
+ }
+
+ WARNING("pinba plugin: recvfrom(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+ else if (status == 0)
+ {
+ DEBUG ("pinba plugin: recvfrom(2) returned unexpected status zero.");
+ return (-1);
+ }
+ else /* if (status > 0) */
+ {
+ assert (((size_t) status) < buffer_size);
+ buffer_size = (size_t) status;
+ buffer[buffer_size] = 0;
+
+ status = pinba_process_stats_packet (buffer, buffer_size);
+ if (status != 0)
+ DEBUG("pinba plugin: Parsing packet failed.");
+ return (status);
+ }
+ } /* while (42) */
+
+ /* not reached */
+ assert (23 == 42);
+ return (-1);
+} /* }}} void pinba_udp_read_callback_fn */
+
+static int receive_loop (void) /* {{{ */
+{
+ pinba_socket_t *s;
- if ((port > 0) && (port < 65536) && (service_port != port))
+ s = pinba_socket_open (conf_node, conf_service);
+ if (s == NULL)
{
- service_port=port;
- need_restart++;
+ ERROR ("pinba plugin: Collector thread is exiting prematurely.");
+ return (-1);
}
- if(service_status && need_restart)
+ while (!collector_thread_do_shutdown)
{
- service_stop();
- service_start();
- }
-} /* }}} void service_config */
+ int status;
+ nfds_t i;
+
+ if (s->fd_num < 1)
+ break;
+
+ status = poll (s->fd, s->fd_num, /* timeout = */ 1000);
+ if (status == 0) /* timeout */
+ {
+ continue;
+ }
+ else if (status < 0)
+ {
+ char errbuf[1024];
+
+ if ((errno == EINTR) || (errno == EAGAIN))
+ continue;
+
+ ERROR ("pinba plugin: poll(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ pinba_socket_free (s);
+ return (-1);
+ }
+
+ for (i = 0; i < s->fd_num; i++)
+ {
+ if (s->fd[i].revents & (POLLERR | POLLHUP | POLLNVAL))
+ {
+ pb_del_socket (s, i);
+ i--;
+ }
+ else if (s->fd[i].revents & (POLLIN | POLLPRI))
+ {
+ pinba_udp_read_callback_fn (s->fd[i].fd);
+ }
+ } /* for (s->fd) */
+ } /* while (!collector_thread_do_shutdown) */
+
+ pinba_socket_free (s);
+ s = NULL;
+
+ return (0);
+} /* }}} int receive_loop */
+
+static void *collector_thread (void *arg) /* {{{ */
+{
+ receive_loop ();
+
+ memset (&collector_thread_id, 0, sizeof (collector_thread_id));
+ collector_thread_running = 0;
+ pthread_exit (NULL);
+ return (NULL);
+} /* }}} void *collector_thread */
/*
* Plugin declaration section
*/
-
-static int config_set (char **var, const char *value)
+static int pinba_config_view (const oconfig_item_t *ci) /* {{{ */
{
- /* code from nginx plugin for collectd */
- if (*var != NULL) {
- free (*var);
- *var = NULL;
+ char *name = NULL;
+ char *host = NULL;
+ char *server = NULL;
+ char *script = NULL;
+ int status;
+ int i;
+
+ status = cf_util_get_string (ci, &name);
+ if (status != 0)
+ return (status);
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Host", child->key) == 0)
+ status = cf_util_get_string (child, &host);
+ else if (strcasecmp ("Server", child->key) == 0)
+ status = cf_util_get_string (child, &server);
+ else if (strcasecmp ("Script", child->key) == 0)
+ status = cf_util_get_string (child, &script);
+ else
+ {
+ WARNING ("pinba plugin: Unknown config option: %s", child->key);
+ status = -1;
+ }
+
+ if (status != 0)
+ break;
}
-
- if ((*var = strdup (value)) == NULL) return (1);
- else return (0);
-}
-static int plugin_config (oconfig_item_t *ci)
+ if (status == 0)
+ service_statnode_add (name, host, server, script);
+
+ sfree (name);
+ sfree (host);
+ sfree (server);
+ sfree (script);
+
+ return (status);
+} /* }}} int pinba_config_view */
+
+static int plugin_config (oconfig_item_t *ci) /* {{{ */
{
- unsigned int i, o;
- int pinba_port = 0;
- char *pinba_address = NULL;
-
- INFO("Pinba Configure..");
-
- service_statnode_begin();
+ int i;
- /* Set default values */
- config_set(&pinba_address, PINBA_DEFAULT_ADDRESS);
- pinba_port = PINBA_DEFAULT_PORT;
-
- for (i = 0; i < ci->children_num; i++) {
+ /* The lock should not be necessary in the config callback, but let's be
+ * sure.. */
+ pthread_mutex_lock (&stat_nodes_lock);
+
+ for (i = 0; i < ci->children_num; i++)
+ {
oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("Address", child->key) == 0) {
- if ((child->values_num != 1) || (child->values[0].type != OCONFIG_TYPE_STRING)){
- WARNING ("pinba plugin: `Address' needs exactly one string argument.");
- return (-1);
- }
- config_set(&pinba_address, child->values[0].value.string);
- } else if (strcasecmp ("Port", child->key) == 0) {
- if ((child->values_num != 1) || (child->values[0].type != OCONFIG_TYPE_NUMBER)){
- WARNING ("pinba plugin: `Port' needs exactly one number argument.");
- return (-1);
- }
- pinba_port=child->values[0].value.number;
- } else if (strcasecmp ("View", child->key) == 0) {
- const char *name=NULL, *host=NULL, *server=NULL, *script=NULL;
- if ((child->values_num != 1) || (child->values[0].type != OCONFIG_TYPE_STRING) || strlen(child->values[0].value.string)==0){
- WARNING ("pinba plugin: `View' needs exactly one non-empty string argument.");
- return (-1);
- }
- name = child->values[0].value.string;
- for(o=0; o<child->children_num; o++){
- oconfig_item_t *node = child->children + o;
- if (strcasecmp ("Host", node->key) == 0) {
- if ((node->values_num != 1) || (node->values[0].type != OCONFIG_TYPE_STRING) || strlen(node->values[0].value.string)==0){
- WARNING ("pinba plugin: `View->Host' needs exactly one non-empty string argument.");
- return (-1);
- }
- host = node->values[0].value.string;
- } else if (strcasecmp ("Server", node->key) == 0) {
- if ((node->values_num != 1) || (node->values[0].type != OCONFIG_TYPE_STRING) || strlen(node->values[0].value.string)==0){
- WARNING ("pinba plugin: `View->Server' needs exactly one non-empty string argument.");
- return (-1);
- }
- server = node->values[0].value.string;
- } else if (strcasecmp ("Script", node->key) == 0) {
- if ((node->values_num != 1) || (node->values[0].type != OCONFIG_TYPE_STRING) || strlen(node->values[0].value.string)==0){
- WARNING ("pinba plugin: `View->Script' needs exactly one non-empty string argument.");
- return (-1);
- }
- script = node->values[0].value.string;
- } else {
- WARNING ("pinba plugin: In `<View>' context allowed only `Host', `Server' and `Script' options but not the `%s'.", node->key);
- return (-1);
- }
- }
- /* add new statnode */
- service_statnode_add(name, host, server, script);
- } else {
- WARNING ("pinba plugin: In `<Plugin pinba>' context allowed only `Address', `Port' and `Observe' options but not the `%s'.", child->key);
- return (-1);
- }
+
+ if (strcasecmp ("Address", child->key) == 0)
+ cf_util_get_string (child, &conf_node);
+ else if (strcasecmp ("Port", child->key) == 0)
+ cf_util_get_service (child, &conf_service);
+ else if (strcasecmp ("View", child->key) == 0)
+ pinba_config_view (child);
+ else
+ WARNING ("pinba plugin: Unknown config option: %s", child->key);
}
+
+ pthread_mutex_unlock(&stat_nodes_lock);
- service_statnode_end();
-
- service_config(pinba_address, pinba_port);
-} /* int pinba_config */
+ return (0);
+} /* }}} int pinba_config */
-static int plugin_init (void)
+static int plugin_init (void) /* {{{ */
{
- INFO("Pinba Starting..");
- service_start();
- return 0;
-}
+ int status;
+
+ if (stat_nodes == NULL)
+ {
+ /* Collect the "total" data by default. */
+ service_statnode_add ("total",
+ /* host = */ NULL,
+ /* server = */ NULL,
+ /* script = */ NULL);
+ }
+
+ if (collector_thread_running)
+ return (0);
+
+ status = plugin_thread_create (&collector_thread_id,
+ /* attrs = */ NULL,
+ collector_thread,
+ /* args = */ NULL);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("pinba plugin: pthread_create(3) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+ collector_thread_running = 1;
-static int plugin_shutdown (void)
+ return (0);
+} /* }}} */
+
+static int plugin_shutdown (void) /* {{{ */
{
- INFO("Pinba Stopping..");
- service_stop();
- service_statnode_free();
- return 0;
-}
+ if (collector_thread_running)
+ {
+ int status;
+
+ DEBUG ("pinba plugin: Shutting down collector thread.");
+ collector_thread_do_shutdown = 1;
+
+ status = pthread_join (collector_thread_id, /* retval = */ NULL);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("pinba plugin: pthread_join(3) failed: %s",
+ sstrerror (status, errbuf, sizeof (errbuf)));
+ }
+
+ collector_thread_running = 0;
+ collector_thread_do_shutdown = 0;
+ } /* if (collector_thread_running) */
-static int
-plugin_submit (const char *plugin_instance,
- const char *type,
- const pinba_statres *res) {
- value_t values[6];
+ return (0);
+} /* }}} int plugin_shutdown */
+
+static int plugin_submit (const pinba_statnode_t *res) /* {{{ */
+{
+ value_t value;
value_list_t vl = VALUE_LIST_INIT;
- values[0].gauge = res->req_per_sec;
- values[1].gauge = res->req_time;
- values[2].gauge = res->ru_utime;
- values[3].gauge = res->ru_stime;
- values[4].gauge = res->doc_size;
- values[5].gauge = res->mem_peak;
-
- vl.values = values;
- vl.values_len = 6;
+ vl.values = &value;
+ vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "pinba", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, plugin_instance,
- sizeof(vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
- INFO("Pinba Dispatch");
+ sstrncpy (vl.plugin_instance, res->name, sizeof (vl.plugin_instance));
+
+ value.derive = res->req_count;
+ sstrncpy (vl.type, "total_requests", sizeof (vl.type));
+ plugin_dispatch_values (&vl);
+
+ value.derive = float_counter_get (&res->req_time, /* factor = */ 1000);
+ sstrncpy (vl.type, "total_time_in_ms", sizeof (vl.type));
+ plugin_dispatch_values (&vl);
+
+ value.derive = res->doc_size;
+ sstrncpy (vl.type, "total_bytes", sizeof (vl.type));
+ plugin_dispatch_values (&vl);
+
+ value.derive = float_counter_get (&res->ru_utime, /* factor = */ 100);
+ sstrncpy (vl.type, "cpu", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "user", sizeof (vl.type_instance));
+ plugin_dispatch_values (&vl);
+
+ value.derive = float_counter_get (&res->ru_stime, /* factor = */ 100);
+ sstrncpy (vl.type, "cpu", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "system", sizeof (vl.type_instance));
+ plugin_dispatch_values (&vl);
+
+ value.gauge = res->mem_peak;
+ sstrncpy (vl.type, "memory", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "peak", sizeof (vl.type_instance));
plugin_dispatch_values (&vl);
return (0);
-}
+} /* }}} int plugin_submit */
-static int plugin_read (void)
+static int plugin_read (void) /* {{{ */
{
unsigned int i=0;
- static pinba_statres res;
+ pinba_statnode_t data;
- while ((i = service_statnode_collect (&res, i)) != 0)
+ while ((i = service_statnode_collect (&data, i)) != 0)
{
- plugin_submit(res.name, "pinba_view", &res);
+ plugin_submit (&data);
}
return 0;
-}
+} /* }}} int plugin_read */
-void module_register (void)
+void module_register (void) /* {{{ */
{
plugin_register_complex_config ("pinba", plugin_config);
plugin_register_init ("pinba", plugin_init);
plugin_register_read ("pinba", plugin_read);
plugin_register_shutdown ("pinba", plugin_shutdown);
-} /* void module_register */
+} /* }}} void module_register */
-/* vim: set sw=2 sts=2 et : */
+/* vim: set sw=2 sts=2 et fdm=marker : */