/**
- * 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
*
* This program is free software; you can redistribute it and/or modify it
* 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>
**/
#include "pinba.pb-c.h"
+typedef uint8_t u_char;
+
#include <event.h>
/*
# define PINBA_UDP_BUFFER_SIZE 65536
#endif
+#ifndef PINBA_DEFAULT_ADDRESS
+# define PINBA_DEFAULT_ADDRESS "127.0.0.1" /* FIXME */
+#endif
+
+#ifndef PINBA_DEFAULT_PORT
+# define PINBA_DEFAULT_PORT 12345 /* FIXME */
+#endif
+
+/*
+ * Private data structures
+ */
typedef struct _pinba_statres_ pinba_statres;
struct _pinba_statres_ {
const char *name;
typedef double pinba_time;
typedef uint32_t pinba_size;
-static pinba_time now(){
+static pinba_time now (void)
+{
static struct timeval tv;
gettimeofday (&tv, /* tz = */ NULL);
char *service_address = PINBA_DEFAULT_ADDRESS;
unsigned int service_port=PINBA_DEFAULT_PORT;
-static void
-service_statnode_reset(pinba_statnode *node){
+static void service_statnode_reset (pinba_statnode *node) /* {{{ */
+{
node->last_coll=now();
node->req_count=0;
node->req_time=0.0;
node->ru_stime=0.0;
node->doc_size=0;
node->mem_peak=0;
-}
+} /* }}} void service_statnode_reset */
-static void strset (char **str, const char *new)
+static void strset (char **str, const char *new) /* {{{ */
{
char *tmp;
sfree (*str);
*str = tmp;
-} /* void strset */
+} /* }}} void strset */
-static void
-service_statnode_add(const char *name,
- const char *host,
- const char *server,
- const char *script){
+static void service_statnode_add(const char *name, /* {{{ */
+ const char *host,
+ 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:"");
/* increment counter */
stat_nodes_count++;
-}
+} /* }}} void service_statnode_add */
static void service_statnode_free (void)
{
pthread_rwlock_destroy (&temp_lock);
}
-static void
-service_statnode_init(){
+static void service_statnode_init (void)
+{
/* only total info collect by default */
service_statnode_free();
pthread_rwlock_init(&temp_lock, 0);
}
-static void
-service_statnode_begin(){
+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(){
+static void service_statnode_end (void)
+{
pthread_rwlock_unlock(&temp_lock);
}
-static unsigned int
-service_statnode_collect(pinba_statres *res, unsigned int i){
+static unsigned int service_statnode_collect (pinba_statres *res, /* {{{ */
+ unsigned int index)
+{
pinba_statnode* node;
+ pinba_time delta;
- if(stat_nodes_count==0) return 0;
+ if (stat_nodes_count == 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_rwlock_wrlock (&temp_lock);
/* end collecting */
- if(i>=stat_nodes_count){
- pthread_rwlock_unlock(&temp_lock);
+ if (index >= stat_nodes_count)
+ {
+ pthread_rwlock_unlock (&temp_lock);
return 0;
}
- node=stat_nodes+i;
+ node = stat_nodes + index;
+ delta = now() - node->last_coll;
- pinba_time delta=now()-node->last_coll;
+ res->name = node->name;
+ res->req_per_sec = node->req_count / delta;
- 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;
+ 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;
-}
+ service_statnode_reset (node);
+ return (index + 1);
+} /* }}} unsigned int service_statnode_collect */
-static void
-service_statnode_process(pinba_statnode *node,
- Pinba__Request* request){
+static void service_statnode_process (pinba_statnode *node,
+ Pinba__Request* request)
+{
node->req_count++;
node->req_time+=request->request_time;
node->ru_utime+=request->ru_utime;
node->mem_peak+=request->memory_peak;
}
-static void service_process_request(Pinba__Request *request)
+static void service_process_request (Pinba__Request *request)
{
unsigned int i;
pthread_rwlock_unlock(&temp_lock);
}
-static void
-service_config(const char* address,
- unsigned int port){
- char need_restart=0;
-
- if(address && (service_address && strcmp(service_address, address))){
- strset(&service_address, address);
- need_restart++;
- }
-
- if(port>0 && port<65536 && service_port!=port){
- service_port=port;
- need_restart++;
- }
-
- if(service_status && need_restart){
- service_stop();
- service_start();
- }
-}
-
-static void
-pinba_socket_free (pinba_socket *socket);
-
-static pinba_socket *
-pinba_socket_open (const char *ip,
- int listen_port);
-
-static void *
-pinba_main(void *arg){
+static void *pinba_main (void *arg)
+{
DEBUG("entering listen-loop..");
service_status=1;
return NULL;
}
-static int
-service_cleanup(){
- DEBUG("closing socket..");
- if(temp_sock){
- pthread_rwlock_wrlock(&temp_lock);
- pinba_socket_free(temp_sock);
- pthread_rwlock_unlock(&temp_lock);
- }
-
- DEBUG("shutdowning event..");
- event_base_free(temp_base);
-
- DEBUG("shutting down..");
-}
-
-static int
-service_start(){
- DEBUG("starting up..");
-
- DEBUG("initializing event..");
- temp_base = event_base_new();
-
- DEBUG("opening socket..");
-
- temp_sock = pinba_socket_open(service_address, service_port);
+static void pinba_socket_free (pinba_socket *socket) /* {{{ */
+{
+ if (!socket)
+ return;
- if (!temp_sock) {
- service_cleanup();
- return 1;
+ if (socket->listen_sock >= 0)
+ {
+ close(socket->listen_sock);
+ socket->listen_sock = -1;
}
- if (pthread_create(&temp_thrd, NULL, pinba_main, NULL)) {
- service_cleanup();
- return 1;
+ if (socket->accept_event)
+ {
+ event_del(socket->accept_event);
+ free(socket->accept_event);
+ socket->accept_event = NULL;
}
- return 0;
-}
-
-static int
-service_stop(){
- pthread_cancel(temp_thrd);
- pthread_join(temp_thrd, NULL);
- service_status=0;
- DEBUG("terminating listen-loop..");
-
- service_cleanup();
-
- return 0;
-}
+ free(socket);
+} /* }}} void pinba_socket_free */
-static int
-pinba_process_stats_packet (const unsigned char *buf,
- int buf_len) {
+static int pinba_process_stats_packet (const uint8_t *buffer, /* {{{ */
+ size_t buffer_size)
+{
Pinba__Request *request;
- request = pinba__request__unpack(NULL, buf_len, buf);
+ request = pinba__request__unpack (NULL, buffer_size, buffer);
- if (!request) {
- return P_FAILURE;
- } else {
- service_process_request(request);
-
- pinba__request__free_unpacked(request, NULL);
-
- return P_SUCCESS;
- }
-}
+ if (!request)
+ return (-1);
-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);
+ service_process_request(request);
+ pinba__request__free_unpacked (request, NULL);
- 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;
+ return (0);
+} /* }}} int pinba_process_stats_packet */
+
+static void pinba_udp_read_callback_fn (int sock, short event, void *arg) /* {{{ */
+{
+ uint8_t buffer[PINBA_UDP_BUFFER_SIZE];
+ size_t buffer_size;
+ int status;
+
+ if ((event & EV_READ) == 0)
+ return;
+
+ while (42)
+ {
+ 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("recv() failed: %s (%d)", strerror(errno), errno);
- } else {
- WARNING("recv() returned 0");
+
+ WARNING("pinba plugin: recvfrom(2) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return;
+ }
+ else if (status == 0)
+ {
+ DEBUG ("pinba plugin: recvfrom(2) returned unexpected status zero.");
+ return;
+ }
+ 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;
}
- }
-}
-static void
-pinba_socket_free (pinba_socket *socket) {
- if (!socket) return;
-
- if (socket->listen_sock >= 0) {
- close(socket->listen_sock);
- socket->listen_sock = -1;
- }
-
- if (socket->accept_event) {
- event_del(socket->accept_event);
- free(socket->accept_event);
- socket->accept_event = NULL;
- }
-
- free(socket);
-}
+ /* not reached */
+ assert (23 == 42);
+ } /* while (42) */
+} /* }}} void pinba_udp_read_callback_fn */
-static pinba_socket *
-pinba_socket_open (const char *ip,
- int listen_port) {
+static pinba_socket *pinba_socket_open (const char *ip, /* {{{ */
+ int listen_port)
+{
struct sockaddr_in addr;
pinba_socket *s;
int sfd, flags, yes = 1;
event_add(s->accept_event, NULL);
return s;
+} /* }}} pinba_socket_open */
+
+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);
+ }
+
+ DEBUG("shutdowning event..");
+ event_base_free(temp_base);
+
+ DEBUG("shutting down..");
+
+ return (0);
+}
+
+static int service_start(void)
+{
+ 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;
+ }
+
+ if (pthread_create(&temp_thrd, NULL, pinba_main, NULL)) {
+ service_cleanup();
+ return 1;
+ }
+
+ return 0;
}
+static int service_stop (void)
+{
+ pthread_cancel(temp_thrd);
+ pthread_join(temp_thrd, NULL);
+ service_status=0;
+ DEBUG("terminating listen-loop..");
+
+ service_cleanup();
+
+ return 0;
+}
+
+static void service_config (const char *address, unsigned int port) /* {{{ */
+{
+ int need_restart = 0;
+
+ if (address && service_address && (strcmp(service_address, address) != 0))
+ {
+ strset (&service_address, address);
+ need_restart++;
+ }
+
+ if ((port > 0) && (port < 65536) && (service_port != port))
+ {
+ service_port=port;
+ need_restart++;
+ }
+
+ if(service_status && need_restart)
+ {
+ service_stop();
+ service_start();
+ }
+} /* }}} void service_config */
+
/*
* Plugin declaration section
*/
-#include<stdint.h>
-
-static int
-config_set (char **var, const char *value) {
+static int config_set (char **var, const char *value)
+{
/* code from nginx plugin for collectd */
if (*var != NULL) {
free (*var);
else return (0);
}
-static int
-plugin_config (oconfig_item_t *ci) {
+static int plugin_config (oconfig_item_t *ci)
+{
unsigned int i, o;
int pinba_port = 0;
char *pinba_address = NULL;
service_config(pinba_address, pinba_port);
} /* int pinba_config */
-static int
-plugin_init (void) {
+static int plugin_init (void)
+{
INFO("Pinba Starting..");
service_start();
return 0;
}
-static int
-plugin_shutdown (void) {
+static int plugin_shutdown (void)
+{
INFO("Pinba Stopping..");
service_stop();
service_statnode_free();
return 0;
}
-static int
-plugin_submit (const char *plugin_instance,
+static int plugin_submit (const char *plugin_instance,
const char *type,
const pinba_statres *res) {
value_t values[6];
return 0;
}
-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 */
-/* vim: set sw=2 sts=2 et : */
+/* vim: set sw=2 sts=2 et fdm=marker : */
projects / collectd.git / blobdiff