From: Florian Forster Date: Mon, 15 Jan 2007 18:32:39 +0000 (+0100) Subject: apache plugin: Converted to the new plugin interface. X-Git-Tag: collectd-4.0.0~230 X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=919edb829d0164937a771415c217237959e59c05;p=collectd.git apache plugin: Converted to the new plugin interface. --- diff --git a/src/apache.c b/src/apache.c index 530481be..0bf52d31 100644 --- a/src/apache.c +++ b/src/apache.c @@ -4,8 +4,7 @@ * * 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; either version 2 of the License, or (at your - * option) any later version. + * Free Software Foundation; only version 2 of the License is applicable. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -24,8 +23,7 @@ #include "common.h" #include "plugin.h" #include "configfile.h" - -#define MODULE_NAME "apache" +#include "utils_debug.h" #if HAVE_LIBCURL && HAVE_CURL_CURL_H # define APACHE_HAVE_READ 1 @@ -34,48 +32,53 @@ # define APACHE_HAVE_READ 0 #endif -static char *url = NULL; -static char *user = NULL; -static char *pass = NULL; -static char *cacert = NULL; - -#if HAVE_LIBCURL -static CURL *curl = NULL; - -#define ABUFFER_SIZE 16384 -static char apache_buffer[ABUFFER_SIZE]; -static int apache_buffer_len = 0; -static char apache_curl_error[CURL_ERROR_SIZE]; -#endif /* HAVE_LIBCURL */ - /* Limit to 2^27 bytes/s. That's what a gigabit-ethernet link can handle, in * theory. */ -static char *bytes_file = "apache/apache_bytes.rrd"; -static char *bytes_ds_def[] = +static data_source_t apache_bytes_dsrc[1] = { - "DS:count:COUNTER:"COLLECTD_HEARTBEAT":0:134217728", - NULL + {"count", DS_TYPE_COUNTER, 0, 134217728.0}, +}; + +static data_set_t apache_bytes_ds = +{ + "apache_bytes", 1, apache_bytes_dsrc }; -static int bytes_ds_num = 1; /* Limit to 2^20 requests/s */ -static char *requests_file = "apache/apache_requests.rrd"; -static char *requests_ds_def[] = +static data_source_t apache_requests_dsrc[1] = { - "DS:count:COUNTER:"COLLECTD_HEARTBEAT":0:1048576", - NULL + {"count", DS_TYPE_COUNTER, 0, 134217728.0}, }; -static int requests_ds_num = 1; -static char *scoreboard_file = "apache/apache_scoreboard-%s.rrd"; -static char *scoreboard_ds_def[] = +static data_set_t apache_requests_ds = { - "DS:count:GAUGE:"COLLECTD_HEARTBEAT":0:U", - NULL + "apache_requests", 1, apache_requests_dsrc +}; + +static data_source_t apache_scoreboard_dsrc[1] = +{ + {"count", DS_TYPE_GAUGE, 0, 65535.0}, +}; + +static data_set_t apache_scoreboard_ds = +{ + "apache_scoreboard", 1, apache_scoreboard_dsrc }; -static int scoreboard_ds_num = 1; -static char *config_keys[] = +#if APACHE_HAVE_READ +static char *url = NULL; +static char *user = NULL; +static char *pass = NULL; +static char *cacert = NULL; + +static CURL *curl = NULL; + +#define ABUFFER_SIZE 16384 +static char apache_buffer[ABUFFER_SIZE]; +static int apache_buffer_len = 0; +static char apache_curl_error[CURL_ERROR_SIZE]; + +static const char *config_keys[] = { "URL", "User", @@ -85,7 +88,6 @@ static char *config_keys[] = }; static int config_keys_num = 4; -#if HAVE_LIBCURL static size_t apache_curl_callback (void *buf, size_t size, size_t nmemb, void *stream) { size_t len = size * nmemb; @@ -104,9 +106,8 @@ static size_t apache_curl_callback (void *buf, size_t size, size_t nmemb, void * return (len); } -#endif /* HAVE_LIBCURL */ -static int config_set (char **var, char *value) +static int config_set (char **var, const char *value) { if (*var != NULL) { @@ -120,7 +121,7 @@ static int config_set (char **var, char *value) return (0); } -static int config (char *key, char *value) +static int config (const char *key, const char *value) { if (strcasecmp (key, "url") == 0) return (config_set (&url, value)); @@ -134,9 +135,8 @@ static int config (char *key, char *value) return (-1); } -static void init (void) +static int init (void) { -#if HAVE_LIBCURL static char credentials[1024]; if (curl != NULL) @@ -147,7 +147,7 @@ static void init (void) if ((curl = curl_easy_init ()) == NULL) { syslog (LOG_ERR, "apache: `curl_easy_init' failed."); - return; + return (-1); } curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, apache_curl_callback); @@ -159,7 +159,7 @@ static void init (void) if (snprintf (credentials, 1024, "%s:%s", user, pass == NULL ? "" : pass) >= 1024) { syslog (LOG_ERR, "apache: Credentials would have been truncated."); - return; + return (-1); } curl_easy_setopt (curl, CURLOPT_USERPWD, credentials); @@ -174,49 +174,53 @@ static void init (void) { curl_easy_setopt (curl, CURLOPT_CAINFO, cacert); } -#endif /* HAVE_LIBCURL */ -} -static void bytes_write (char *host, char *inst, char *val) -{ - rrd_update_file (host, bytes_file, val, bytes_ds_def, bytes_ds_num); -} + return (0); +} /* int init */ -static void requests_write (char *host, char *inst, char *val) +static void submit_counter (const char *type, const char *type_instance, + unsigned long long value) { - rrd_update_file (host, requests_file, val, requests_ds_def, requests_ds_num); -} + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; -static void scoreboard_write (char *host, char *inst, char *val) -{ - char buf[1024]; + DBG ("type = %s; type_instance = %s; value = %llu;", + type, type_instance, value); - if (snprintf (buf, 1024, scoreboard_file, inst) >= 1024) - return; + values[0].counter = value; - rrd_update_file (host, buf, val, scoreboard_ds_def, scoreboard_ds_num); -} + vl.values = values; + vl.values_len = 1; + vl.time = time (NULL); + strcpy (vl.host, hostname); + strcpy (vl.plugin, "apache"); + strcpy (vl.plugin_instance, ""); + strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance)); -#if APACHE_HAVE_READ -static void submit (char *type, char *inst, long long value) + plugin_dispatch_values (type, &vl); +} /* void submit_counter */ + +static void submit_gauge (const char *type, const char *type_instance, + double value) { - char buf[1024]; - int status; + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; - status = snprintf (buf, 1024, "%u:%lli", (unsigned int) curtime, value); - if (status < 0) - { - syslog (LOG_ERR, "apache: bytes_submit: snprintf failed"); - return; - } - else if (status >= 1024) - { - syslog (LOG_WARNING, "apache: bytes_submit: snprintf was truncated"); - return; - } + DBG ("type = %s; type_instance = %s; value = %lf;", + type, type_instance, value); - plugin_submit (type, inst, buf); -} + values[0].gauge = value; + + vl.values = values; + vl.values_len = 1; + vl.time = time (NULL); + strcpy (vl.host, hostname); + strcpy (vl.plugin, "apache"); + strcpy (vl.plugin_instance, ""); + strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance)); + + plugin_dispatch_values (type, &vl); +} /* void submit_counter */ static void submit_scoreboard (char *buf) { @@ -256,20 +260,20 @@ static void submit_scoreboard (char *buf) else if (buf[i] == 'I') idle_cleanup++; } - submit ("apache_scoreboard", "open" , open); - submit ("apache_scoreboard", "waiting" , waiting); - submit ("apache_scoreboard", "starting" , starting); - submit ("apache_scoreboard", "reading" , reading); - submit ("apache_scoreboard", "sending" , sending); - submit ("apache_scoreboard", "keepalive", keepalive); - submit ("apache_scoreboard", "dnslookup", dnslookup); - submit ("apache_scoreboard", "closing" , closing); - submit ("apache_scoreboard", "logging" , logging); - submit ("apache_scoreboard", "finishing", finishing); - submit ("apache_scoreboard", "idle_cleanup", idle_cleanup); + submit_gauge ("apache_scoreboard", "open" , open); + submit_gauge ("apache_scoreboard", "waiting" , waiting); + submit_gauge ("apache_scoreboard", "starting" , starting); + submit_gauge ("apache_scoreboard", "reading" , reading); + submit_gauge ("apache_scoreboard", "sending" , sending); + submit_gauge ("apache_scoreboard", "keepalive", keepalive); + submit_gauge ("apache_scoreboard", "dnslookup", dnslookup); + submit_gauge ("apache_scoreboard", "closing" , closing); + submit_gauge ("apache_scoreboard", "logging" , logging); + submit_gauge ("apache_scoreboard", "finishing", finishing); + submit_gauge ("apache_scoreboard", "idle_cleanup", idle_cleanup); } -static void apache_read (void) +static int apache_read (void) { int i; @@ -281,15 +285,16 @@ static void apache_read (void) int fields_num; if (curl == NULL) - return; + return (-1); if (url == NULL) - return; + return (-1); apache_buffer_len = 0; if (curl_easy_perform (curl) != 0) { - syslog (LOG_WARNING, "apache: curl_easy_perform failed: %s", apache_curl_error); - return; + syslog (LOG_ERR, "apache: curl_easy_perform failed: %s", + apache_curl_error); + return (-1); } ptr = apache_buffer; @@ -310,10 +315,12 @@ static void apache_read (void) { if ((strcmp (fields[0], "Total") == 0) && (strcmp (fields[1], "Accesses:") == 0)) - submit ("apache_requests", NULL, atoll (fields[2])); + submit_counter ("apache_requests", "", + atoll (fields[2])); else if ((strcmp (fields[0], "Total") == 0) && (strcmp (fields[1], "kBytes:") == 0)) - submit ("apache_bytes", NULL, 1024LL * atoll (fields[2])); + submit_counter ("apache_bytes", "", + 1024LL * atoll (fields[2])); } else if (fields_num == 2) { @@ -323,18 +330,21 @@ static void apache_read (void) } apache_buffer_len = 0; -} -#else -# define apache_read NULL + + return (0); +} /* int apache_read */ #endif /* APACHE_HAVE_READ */ void module_register (void) { - plugin_register (MODULE_NAME, init, apache_read, NULL); - plugin_register ("apache_requests", NULL, NULL, requests_write); - plugin_register ("apache_bytes", NULL, NULL, bytes_write); - plugin_register ("apache_scoreboard", NULL, NULL, scoreboard_write); - cf_register (MODULE_NAME, config, config_keys, config_keys_num); -} + plugin_register_data_set (&apache_bytes_ds); + plugin_register_data_set (&apache_requests_ds); + plugin_register_data_set (&apache_scoreboard_ds); -#undef MODULE_NAME +#if APACHE_HAVE_READ + plugin_register_config ("apache", config, + config_keys, config_keys_num); + plugin_register_init ("apache", init); + plugin_register_read ("apache", apache_read); +#endif +}