![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/write_graphite.c b/src/write_graphite.c
--- a/src/write_graphite.c
+++ /dev/null
@@ -1,615 +0,0 @@
-/**
- * collectd - src/write_graphite.c
- * Copyright (C) 2012 Pierre-Yves Ritschard
- * Copyright (C) 2011 Scott Sanders
- * Copyright (C) 2009 Paul Sadauskas
- * Copyright (C) 2009 Doug MacEachern
- * Copyright (C) 2007-2013 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.
- *
- * 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.
- *
- * 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
- *
- * Authors:
- * Florian octo Forster <octo at collectd.org>
- * Doug MacEachern <dougm at hyperic.com>
- * Paul Sadauskas <psadauskas at gmail.com>
- * Scott Sanders <scott at jssjr.com>
- * Pierre-Yves Ritschard <pyr at spootnik.org>
- *
- * Based on the write_http plugin.
- **/
-
- /* write_graphite plugin configuation example
- *
- * <Plugin write_graphite>
- * <Carbon>
- * Host "localhost"
- * Port "2003"
- * Protocol "udp"
- * LogSendErrors true
- * Prefix "collectd"
- * </Carbon>
- * </Plugin>
- */
-
-#include "collectd.h"
-#include "common.h"
-#include "plugin.h"
-#include "configfile.h"
-
-#include "utils_cache.h"
-#include "utils_complain.h"
-#include "utils_format_graphite.h"
-
-/* Folks without pthread will need to disable this plugin. */
-#include <pthread.h>
-
-#include <sys/socket.h>
-#include <netdb.h>
-
-#ifndef WG_DEFAULT_NODE
-# define WG_DEFAULT_NODE "localhost"
-#endif
-
-#ifndef WG_DEFAULT_SERVICE
-# define WG_DEFAULT_SERVICE "2003"
-#endif
-
-#ifndef WG_DEFAULT_PROTOCOL
-# define WG_DEFAULT_PROTOCOL "tcp"
-#endif
-
-#ifndef WG_DEFAULT_LOG_SEND_ERRORS
-# define WG_DEFAULT_LOG_SEND_ERRORS 1
-#endif
-
-#ifndef WG_DEFAULT_ESCAPE
-# define WG_DEFAULT_ESCAPE '_'
-#endif
-
-/* Ethernet - (IPv6 + TCP) = 1500 - (40 + 32) = 1428 */
-#ifndef WG_SEND_BUF_SIZE
-# define WG_SEND_BUF_SIZE 1428
-#endif
-
-#ifndef WG_MIN_RECONNECT_INTERVAL
-# define WG_MIN_RECONNECT_INTERVAL TIME_T_TO_CDTIME_T (1)
-#endif
-
-/*
- * Private variables
- */
-struct wg_callback
-{
- int sock_fd;
-
- char *name;
-
- char *node;
- char *service;
- char *protocol;
- _Bool log_send_errors;
- char *prefix;
- char *postfix;
- char escape_char;
-
- unsigned int format_flags;
-
- char send_buf[WG_SEND_BUF_SIZE];
- size_t send_buf_free;
- size_t send_buf_fill;
- cdtime_t send_buf_init_time;
-
- pthread_mutex_t send_lock;
- c_complain_t init_complaint;
- cdtime_t last_connect_time;
-};
-
-
-/*
- * Functions
- */
-static void wg_reset_buffer (struct wg_callback *cb)
-{
- memset (cb->send_buf, 0, sizeof (cb->send_buf));
- cb->send_buf_free = sizeof (cb->send_buf);
- cb->send_buf_fill = 0;
- cb->send_buf_init_time = cdtime ();
-}
-
-static int wg_send_buffer (struct wg_callback *cb)
-{
- ssize_t status = 0;
-
- status = swrite (cb->sock_fd, cb->send_buf, strlen (cb->send_buf));
- if (status < 0)
- {
- const char *protocol = cb->protocol ? cb->protocol : WG_DEFAULT_PROTOCOL;
-
- if (cb->log_send_errors)
- {
- char errbuf[1024];
- ERROR ("write_graphite plugin: send to %s:%s (%s) failed with status %zi (%s)",
- cb->node, cb->service, protocol,
- status, sstrerror (errno, errbuf, sizeof (errbuf)));
- }
-
- close (cb->sock_fd);
- cb->sock_fd = -1;
-
- return (-1);
- }
-
- return (0);
-}
-
-/* NOTE: You must hold cb->send_lock when calling this function! */
-static int wg_flush_nolock (cdtime_t timeout, struct wg_callback *cb)
-{
- int status;
-
- DEBUG ("write_graphite plugin: wg_flush_nolock: timeout = %.3f; "
- "send_buf_fill = %zu;",
- (double)timeout,
- cb->send_buf_fill);
-
- /* timeout == 0 => flush unconditionally */
- if (timeout > 0)
- {
- cdtime_t now;
-
- now = cdtime ();
- if ((cb->send_buf_init_time + timeout) > now)
- return (0);
- }
-
- if (cb->send_buf_fill <= 0)
- {
- cb->send_buf_init_time = cdtime ();
- return (0);
- }
-
- status = wg_send_buffer (cb);
- wg_reset_buffer (cb);
-
- return (status);
-}
-
-static int wg_callback_init (struct wg_callback *cb)
-{
- struct addrinfo ai_hints;
- struct addrinfo *ai_list;
- struct addrinfo *ai_ptr;
- cdtime_t now;
- int status;
-
- const char *node = cb->node ? cb->node : WG_DEFAULT_NODE;
- const char *service = cb->service ? cb->service : WG_DEFAULT_SERVICE;
- const char *protocol = cb->protocol ? cb->protocol : WG_DEFAULT_PROTOCOL;
-
- char connerr[1024] = "";
-
- if (cb->sock_fd > 0)
- return (0);
-
- /* Don't try to reconnect too often. By default, one reconnection attempt
- * is made per second. */
- now = cdtime ();
- if ((now - cb->last_connect_time) < WG_MIN_RECONNECT_INTERVAL)
- return (EAGAIN);
- cb->last_connect_time = now;
-
- memset (&ai_hints, 0, sizeof (ai_hints));
-#ifdef AI_ADDRCONFIG
- ai_hints.ai_flags |= AI_ADDRCONFIG;
-#endif
- ai_hints.ai_family = AF_UNSPEC;
-
- if (0 == strcasecmp ("tcp", protocol))
- ai_hints.ai_socktype = SOCK_STREAM;
- else
- ai_hints.ai_socktype = SOCK_DGRAM;
-
- ai_list = NULL;
-
- status = getaddrinfo (node, service, &ai_hints, &ai_list);
- if (status != 0)
- {
- ERROR ("write_graphite plugin: getaddrinfo (%s, %s, %s) failed: %s",
- node, service, protocol, gai_strerror (status));
- return (-1);
- }
-
- assert (ai_list != NULL);
- for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
- {
- cb->sock_fd = socket (ai_ptr->ai_family, ai_ptr->ai_socktype,
- ai_ptr->ai_protocol);
- if (cb->sock_fd < 0) {
- char errbuf[1024];
- snprintf (connerr, sizeof (connerr), "failed to open socket: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- continue;
- }
-
- status = connect (cb->sock_fd, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
- if (status != 0)
- {
- char errbuf[1024];
- snprintf (connerr, sizeof (connerr), "failed to connect to remote "
- "host: %s", sstrerror (errno, errbuf, sizeof (errbuf)));
- close (cb->sock_fd);
- cb->sock_fd = -1;
- continue;
- }
-
- break;
- }
-
- freeaddrinfo (ai_list);
-
- if (cb->sock_fd < 0)
- {
- if (connerr[0] == '\0')
- /* this should not happen but try to get a message anyway */
- sstrerror (errno, connerr, sizeof (connerr));
- c_complain (LOG_ERR, &cb->init_complaint,
- "write_graphite plugin: Connecting to %s:%s via %s failed. "
- "The last error was: %s", node, service, protocol, connerr);
- return (-1);
- }
- else
- {
- c_release (LOG_INFO, &cb->init_complaint,
- "write_graphite plugin: Successfully connected to %s:%s via %s.",
- node, service, protocol);
- }
-
- wg_reset_buffer (cb);
-
- return (0);
-}
-
-static void wg_callback_free (void *data)
-{
- struct wg_callback *cb;
-
- if (data == NULL)
- return;
-
- cb = data;
-
- pthread_mutex_lock (&cb->send_lock);
-
- wg_flush_nolock (/* timeout = */ 0, cb);
-
- if (cb->sock_fd >= 0)
- {
- close (cb->sock_fd);
- cb->sock_fd = -1;
- }
-
- sfree(cb->name);
- sfree(cb->node);
- sfree(cb->protocol);
- sfree(cb->service);
- sfree(cb->prefix);
- sfree(cb->postfix);
-
- pthread_mutex_destroy (&cb->send_lock);
-
- sfree(cb);
-}
-
-static int wg_flush (cdtime_t timeout,
- const char *identifier __attribute__((unused)),
- user_data_t *user_data)
-{
- struct wg_callback *cb;
- int status;
-
- if (user_data == NULL)
- return (-EINVAL);
-
- cb = user_data->data;
-
- pthread_mutex_lock (&cb->send_lock);
-
- if (cb->sock_fd < 0)
- {
- status = wg_callback_init (cb);
- if (status != 0)
- {
- /* An error message has already been printed. */
- pthread_mutex_unlock (&cb->send_lock);
- return (-1);
- }
- }
-
- status = wg_flush_nolock (timeout, cb);
- pthread_mutex_unlock (&cb->send_lock);
-
- return (status);
-}
-
-static int wg_send_message (char const *message, struct wg_callback *cb)
-{
- int status;
- size_t message_len;
-
- message_len = strlen (message);
-
- pthread_mutex_lock (&cb->send_lock);
-
- if (cb->sock_fd < 0)
- {
- status = wg_callback_init (cb);
- if (status != 0)
- {
- /* An error message has already been printed. */
- pthread_mutex_unlock (&cb->send_lock);
- return (-1);
- }
- }
-
- if (message_len >= cb->send_buf_free)
- {
- status = wg_flush_nolock (/* timeout = */ 0, cb);
- if (status != 0)
- {
- pthread_mutex_unlock (&cb->send_lock);
- return (status);
- }
- }
-
- /* Assert that we have enough space for this message. */
- assert (message_len < cb->send_buf_free);
-
- /* `message_len + 1' because `message_len' does not include the
- * trailing null byte. Neither does `send_buffer_fill'. */
- memcpy (cb->send_buf + cb->send_buf_fill,
- message, message_len + 1);
- cb->send_buf_fill += message_len;
- cb->send_buf_free -= message_len;
-
- DEBUG ("write_graphite plugin: [%s]:%s (%s) buf %zu/%zu (%.1f %%) \"%s\"",
- cb->node,
- cb->service,
- cb->protocol,
- cb->send_buf_fill, sizeof (cb->send_buf),
- 100.0 * ((double) cb->send_buf_fill) / ((double) sizeof (cb->send_buf)),
- message);
-
- pthread_mutex_unlock (&cb->send_lock);
-
- return (0);
-}
-
-static int wg_write_messages (const data_set_t *ds, const value_list_t *vl,
- struct wg_callback *cb)
-{
- char buffer[WG_SEND_BUF_SIZE];
- int status;
-
- if (0 != strcmp (ds->type, vl->type))
- {
- ERROR ("write_graphite plugin: DS type does not match "
- "value list type");
- return -1;
- }
-
- memset (buffer, 0, sizeof (buffer));
- status = format_graphite (buffer, sizeof (buffer), ds, vl,
- cb->prefix, cb->postfix, cb->escape_char, cb->format_flags);
- if (status != 0) /* error message has been printed already. */
- return (status);
-
- /* Send the message to graphite */
- status = wg_send_message (buffer, cb);
- if (status != 0) /* error message has been printed already. */
- return (status);
-
- return (0);
-} /* int wg_write_messages */
-
-static int wg_write (const data_set_t *ds, const value_list_t *vl,
- user_data_t *user_data)
-{
- struct wg_callback *cb;
- int status;
-
- if (user_data == NULL)
- return (EINVAL);
-
- cb = user_data->data;
-
- status = wg_write_messages (ds, vl, cb);
-
- return (status);
-}
-
-static int config_set_char (char *dest,
- oconfig_item_t *ci)
-{
- char buffer[4];
- int status;
-
- memset (buffer, 0, sizeof (buffer));
-
- status = cf_util_get_string_buffer (ci, buffer, sizeof (buffer));
- if (status != 0)
- return (status);
-
- if (buffer[0] == 0)
- {
- ERROR ("write_graphite plugin: Cannot use an empty string for the "
- "\"EscapeCharacter\" option.");
- return (-1);
- }
-
- if (buffer[1] != 0)
- {
- WARNING ("write_graphite plugin: Only the first character of the "
- "\"EscapeCharacter\" option ('%c') will be used.",
- (int) buffer[0]);
- }
-
- *dest = buffer[0];
-
- return (0);
-}
-
-static int wg_config_node (oconfig_item_t *ci)
-{
- struct wg_callback *cb;
- user_data_t user_data;
- char callback_name[DATA_MAX_NAME_LEN];
- int i;
- int status = 0;
-
- cb = malloc (sizeof (*cb));
- if (cb == NULL)
- {
- ERROR ("write_graphite plugin: malloc failed.");
- return (-1);
- }
- memset (cb, 0, sizeof (*cb));
- cb->sock_fd = -1;
- cb->name = NULL;
- cb->node = NULL;
- cb->service = NULL;
- cb->protocol = NULL;
- cb->log_send_errors = WG_DEFAULT_LOG_SEND_ERRORS;
- cb->prefix = NULL;
- cb->postfix = NULL;
- cb->escape_char = WG_DEFAULT_ESCAPE;
- cb->format_flags = GRAPHITE_STORE_RATES;
-
- /* FIXME: Legacy configuration syntax. */
- if (strcasecmp ("Carbon", ci->key) != 0)
- {
- status = cf_util_get_string (ci, &cb->name);
- if (status != 0)
- {
- wg_callback_free (cb);
- return (status);
- }
- }
-
- pthread_mutex_init (&cb->send_lock, /* attr = */ NULL);
- C_COMPLAIN_INIT (&cb->init_complaint);
-
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("Host", child->key) == 0)
- cf_util_get_string (child, &cb->node);
- else if (strcasecmp ("Port", child->key) == 0)
- cf_util_get_service (child, &cb->service);
- else if (strcasecmp ("Protocol", child->key) == 0)
- {
- cf_util_get_string (child, &cb->protocol);
-
- if (strcasecmp ("UDP", cb->protocol) != 0 &&
- strcasecmp ("TCP", cb->protocol) != 0)
- {
- ERROR ("write_graphite plugin: Unknown protocol (%s)",
- cb->protocol);
- status = -1;
- }
- }
- else if (strcasecmp ("LogSendErrors", child->key) == 0)
- cf_util_get_boolean (child, &cb->log_send_errors);
- else if (strcasecmp ("Prefix", child->key) == 0)
- cf_util_get_string (child, &cb->prefix);
- else if (strcasecmp ("Postfix", child->key) == 0)
- cf_util_get_string (child, &cb->postfix);
- else if (strcasecmp ("StoreRates", child->key) == 0)
- cf_util_get_flag (child, &cb->format_flags,
- GRAPHITE_STORE_RATES);
- else if (strcasecmp ("SeparateInstances", child->key) == 0)
- cf_util_get_flag (child, &cb->format_flags,
- GRAPHITE_SEPARATE_INSTANCES);
- else if (strcasecmp ("AlwaysAppendDS", child->key) == 0)
- cf_util_get_flag (child, &cb->format_flags,
- GRAPHITE_ALWAYS_APPEND_DS);
- else if (strcasecmp ("EscapeCharacter", child->key) == 0)
- config_set_char (&cb->escape_char, child);
- else
- {
- ERROR ("write_graphite plugin: Invalid configuration "
- "option: %s.", child->key);
- status = -1;
- }
-
- if (status != 0)
- break;
- }
-
- if (status != 0)
- {
- wg_callback_free (cb);
- return (status);
- }
-
- /* FIXME: Legacy configuration syntax. */
- if (cb->name == NULL)
- ssnprintf (callback_name, sizeof (callback_name), "write_graphite/%s/%s/%s",
- cb->node != NULL ? cb->node : WG_DEFAULT_NODE,
- cb->service != NULL ? cb->service : WG_DEFAULT_SERVICE,
- cb->protocol != NULL ? cb->protocol : WG_DEFAULT_PROTOCOL);
- else
- ssnprintf (callback_name, sizeof (callback_name), "write_graphite/%s",
- cb->name);
-
- memset (&user_data, 0, sizeof (user_data));
- user_data.data = cb;
- user_data.free_func = wg_callback_free;
- plugin_register_write (callback_name, wg_write, &user_data);
-
- user_data.free_func = NULL;
- plugin_register_flush (callback_name, wg_flush, &user_data);
-
- return (0);
-}
-
-static int wg_config (oconfig_item_t *ci)
-{
- int i;
-
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("Node", child->key) == 0)
- wg_config_node (child);
- /* FIXME: Remove this legacy mode in version 6. */
- else if (strcasecmp ("Carbon", child->key) == 0)
- wg_config_node (child);
- else
- {
- ERROR ("write_graphite plugin: Invalid configuration "
- "option: %s.", child->key);
- }
- }
-
- return (0);
-}
-
-void module_register (void)
-{
- plugin_register_complex_config ("write_graphite", wg_config);
-}
-
-/* vim: set sw=4 ts=4 sts=4 tw=78 et : */