--- /dev/null
+/**
+ * collectd - src/target_set.c
+ * Copyright (C) 2008-2010 Florian Forster
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Florian Forster <ff at octo.it>
+ **/
+
+#include "collectd.h"
+#include "plugin.h"
+#include "common.h"
+#include "configfile.h"
+
+#include <pthread.h>
+#include <credis.h>
+
+struct wr_node_s
+{
+ char name[DATA_MAX_NAME_LEN];
+
+ char *host;
+ int port;
+ int timeout;
+
+ REDIS conn;
+ pthread_mutex_t lock;
+};
+typedef struct wr_node_s wr_node_t;
+
+/*
+ * Functions
+ */
+static int wr_write (const data_set_t *ds, /* {{{ */
+ const value_list_t *vl,
+ user_data_t *ud)
+{
+ wr_node_t *node = ud->data;
+ char key[512];
+ char value[512];
+ char tmp[512];
+ int status;
+ int i;
+
+ status = FORMAT_VL (tmp, sizeof (tmp), vl);
+ if (status != 0)
+ return (status);
+ ssnprintf (key, sizeof (key), "collectd/%s", tmp);
+
+ ssnprintf (value, sizeof (value), "%lu", (unsigned long) vl->time);
+ for (i = 0; i < ds->ds_num; i++)
+ {
+ if (ds->ds[i].type == DS_TYPE_COUNTER)
+ ssnprintf (tmp, sizeof (tmp), "%s:%llu",
+ value, vl->values[i].counter);
+ else if (ds->ds[i].type == DS_TYPE_GAUGE)
+ ssnprintf (tmp, sizeof (tmp), "%s:%g",
+ value, vl->values[i].gauge);
+ else if (ds->ds[i].type == DS_TYPE_DERIVE)
+ ssnprintf (tmp, sizeof (tmp), "%s:%"PRIi64,
+ value, vl->values[i].derive);
+ else if (ds->ds[i].type == DS_TYPE_ABSOLUTE)
+ ssnprintf (tmp, sizeof (tmp), "%s:%"PRIu64,
+ value, vl->values[i].absolute);
+ else
+ assert (23 == 42);
+
+ memcpy (value, tmp, sizeof (value));
+ }
+
+ pthread_mutex_lock (&node->lock);
+
+ if (node->conn == NULL)
+ {
+ node->conn = credis_connect (node->host, node->port, node->timeout);
+ if (node->conn == NULL)
+ {
+ ERROR ("write_redis plugin: Connecting to host \"%s\" (port %i) failed.",
+ (node->host != NULL) ? node->host : "localhost",
+ (node->port != 0) ? node->port : 6379);
+ pthread_mutex_unlock (&node->lock);
+ return (-1);
+ }
+ }
+
+ /* "credis_zadd" doesn't handle a NULL pointer gracefully, so I'd rather
+ * have a meaningful assertion message than a normal segmentation fault. */
+ assert (node->conn != NULL);
+ status = credis_zadd (node->conn, key, (double) vl->time, value);
+
+ pthread_mutex_unlock (&node->lock);
+
+ return (0);
+} /* }}} int wr_write */
+
+static void wr_config_free (void *ptr) /* {{{ */
+{
+ wr_node_t *node = ptr;
+
+ if (node == NULL)
+ return;
+
+ if (node->conn != NULL)
+ {
+ credis_close (node->conn);
+ node->conn = NULL;
+ }
+
+ sfree (node->host);
+ sfree (node);
+} /* }}} void wr_config_free */
+
+static int wr_config_node (oconfig_item_t *ci) /* {{{ */
+{
+ wr_node_t *node;
+ int status;
+ int i;
+
+ node = malloc (sizeof (*node));
+ if (node == NULL)
+ return (ENOMEM);
+ memset (node, 0, sizeof (*node));
+ node->host = NULL;
+ node->port = 0;
+ node->timeout = 1000;
+ node->conn = NULL;
+ pthread_mutex_init (&node->lock, /* attr = */ NULL);
+
+ status = cf_util_get_string_buffer (ci, node->name, sizeof (node->name));
+ if (status != 0)
+ {
+ sfree (node);
+ 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, &node->host);
+ else if (strcasecmp ("Port", child->key) == 0)
+ {
+ status = cf_util_get_port_number (child);
+ if (status > 0)
+ {
+ node->port = status;
+ status = 0;
+ }
+ }
+ else if (strcasecmp ("Timeout", child->key) == 0)
+ status = cf_util_get_int (child, &node->timeout);
+ else
+ WARNING ("write_redis plugin: Ignoring unknown config option \"%s\".",
+ child->key);
+
+ if (status != 0)
+ break;
+ } /* for (i = 0; i < ci->children_num; i++) */
+
+ if (status == 0)
+ {
+ char cb_name[DATA_MAX_NAME_LEN];
+ user_data_t ud;
+
+ ssnprintf (cb_name, sizeof (cb_name), "write_redis/%s", node->name);
+
+ ud.data = node;
+ ud.free_func = wr_config_free;
+
+ status = plugin_register_write (cb_name, wr_write, &ud);
+ }
+
+ if (status != 0)
+ wr_config_free (node);
+
+ return (status);
+} /* }}} int wr_config_node */
+
+static int wr_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)
+ wr_config_node (child);
+ else
+ WARNING ("write_redis plugin: Ignoring unknown "
+ "configuration option \"%s\" at top level.", child->key);
+ }
+
+ return (0);
+} /* }}} int wr_config */
+
+void module_register (void)
+{
+ plugin_register_complex_config ("write_redis", wr_config);
+}
+
+/* vim: set sw=2 sts=2 tw=78 et fdm=marker : */
projects / collectd.git / commitdiff