![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/utils_tail_match.c b/src/utils_tail_match.c
--- /dev/null
+++ b/src/utils_tail_match.c
@@ -0,0 +1,252 @@
+/*
+ * collectd - src/utils_tail_match.c
+ * Copyright (C) 2007-2008 C-Ware, Inc.
+ * Copyright (C) 2008 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
+ * 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
+ *
+ * Author:
+ * Luke Heberling <lukeh at c-ware.com>
+ * Florian Forster <octo at verplant.org>
+ *
+ * Description:
+ * Encapsulates useful code to plugins which must parse a log file.
+ */
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "utils_match.h"
+#include "utils_tail.h"
+#include "utils_tail_match.h"
+
+struct cu_tail_match_simple_s
+{
+ char plugin[DATA_MAX_NAME_LEN];
+ char plugin_instance[DATA_MAX_NAME_LEN];
+ char type[DATA_MAX_NAME_LEN];
+ char type_instance[DATA_MAX_NAME_LEN];
+};
+typedef struct cu_tail_match_simple_s cu_tail_match_simple_t;
+
+struct cu_tail_match_match_s
+{
+ cu_match_t *match;
+ void *user_data;
+ int (*submit) (cu_match_t *match, void *user_data);
+ void (*free) (void *user_data);
+};
+typedef struct cu_tail_match_match_s cu_tail_match_match_t;
+
+struct cu_tail_match_s
+{
+ int flags;
+ cu_tail_t *tail;
+
+ cu_tail_match_match_t *matches;
+ size_t matches_num;
+};
+
+/*
+ * Private functions
+ */
+static int simple_submit_match (cu_match_t *match, void *user_data)
+{
+ cu_tail_match_simple_t *data = (cu_tail_match_simple_t *) user_data;
+ cu_match_value_t *match_value;
+ value_list_t vl = VALUE_LIST_INIT;
+ value_t values[1];
+
+ match_value = (cu_match_value_t *) match_get_user_data (match);
+ if (match_value == NULL)
+ return (-1);
+
+ values[0] = match_value->value;
+
+ vl.values = values;
+ vl.values_len = 1;
+ vl.time = time (NULL);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, data->plugin, sizeof (vl.plugin));
+ sstrncpy (vl.plugin_instance, data->plugin_instance,
+ sizeof (vl.plugin_instance));
+ sstrncpy (vl.type_instance, data->type_instance,
+ sizeof (vl.type_instance));
+
+ plugin_dispatch_values (data->type, &vl);
+
+ return (0);
+} /* int simple_submit_match */
+
+static int tail_callback (void *data, char *buf, int buflen)
+{
+ cu_tail_match_t *obj = (cu_tail_match_t *) data;
+ int i;
+
+ for (i = 0; i < obj->matches_num; i++)
+ match_apply (obj->matches[i].match, buf);
+
+ return (0);
+} /* int tail_callback */
+
+/*
+ * Public functions
+ */
+cu_tail_match_t *tail_match_create (const char *filename)
+{
+ cu_tail_match_t *obj;
+
+ obj = (cu_tail_match_t *) malloc (sizeof (cu_tail_match_t));
+ if (obj == NULL)
+ return (NULL);
+ memset (obj, '\0', sizeof (cu_tail_match_t));
+
+ obj->tail = cu_tail_create (filename);
+ if (obj->tail == NULL)
+ {
+ sfree (obj);
+ return (NULL);
+ }
+
+ return (obj);
+} /* cu_tail_match_t *tail_match_create */
+
+void tail_match_destroy (cu_tail_match_t *obj)
+{
+ int i;
+
+ if (obj == NULL)
+ return;
+
+ if (obj->tail != NULL)
+ {
+ cu_tail_destroy (obj->tail);
+ obj->tail = NULL;
+ }
+
+ for (i = 0; i < obj->matches_num; i++)
+ {
+ cu_tail_match_match_t *match = obj->matches + i;
+ if (match->match != NULL)
+ {
+ match_destroy (match->match);
+ match->match = NULL;
+ }
+
+ if ((match->user_data != NULL)
+ && (match->free != NULL))
+ (*match->free) (match->user_data);
+ match->user_data = NULL;
+ }
+
+ sfree (obj->matches);
+ sfree (obj);
+} /* void tail_match_destroy */
+
+int tail_match_add_match (cu_tail_match_t *obj, cu_match_t *match,
+ int (*submit_match) (cu_match_t *match, void *user_data),
+ void *user_data,
+ void (*free_user_data) (void *user_data))
+{
+ cu_tail_match_match_t *temp;
+
+ temp = (cu_tail_match_match_t *) realloc (obj->matches,
+ sizeof (cu_tail_match_match_t) * (obj->matches_num + 1));
+ if (temp == NULL)
+ return (-1);
+
+ obj->matches = temp;
+ obj->matches_num++;
+
+ temp = obj->matches + (obj->matches_num - 1);
+
+ temp->match = match;
+ temp->user_data = user_data;
+ temp->submit = submit_match;
+ temp->free = free_user_data;
+
+ return (0);
+} /* int tail_match_add_match */
+
+int tail_match_add_match_simple (cu_tail_match_t *obj,
+ const char *regex, int ds_type,
+ const char *plugin, const char *plugin_instance,
+ const char *type, const char *type_instance)
+{
+ cu_match_t *match;
+ cu_tail_match_simple_t *user_data;
+ int status;
+
+ match = match_create_simple (regex, ds_type);
+ if (match == NULL)
+ return (-1);
+
+ user_data = (cu_tail_match_simple_t *) malloc (sizeof (cu_tail_match_simple_t));
+ if (user_data == NULL)
+ {
+ match_destroy (match);
+ return (-1);
+ }
+ memset (user_data, '\0', sizeof (cu_tail_match_simple_t));
+
+ sstrncpy (user_data->plugin, plugin, sizeof (user_data->plugin));
+ if (plugin_instance != NULL)
+ sstrncpy (user_data->plugin_instance, plugin_instance,
+ sizeof (user_data->plugin_instance));
+
+ sstrncpy (user_data->type, type, sizeof (user_data->type));
+ if (type_instance != NULL)
+ sstrncpy (user_data->type_instance, type_instance,
+ sizeof (user_data->type_instance));
+
+ status = tail_match_add_match (obj, match, simple_submit_match,
+ user_data, free);
+
+ if (status != 0)
+ {
+ match_destroy (match);
+ sfree (user_data);
+ }
+
+ return (status);
+} /* int tail_match_add_match_simple */
+
+int tail_match_read (cu_tail_match_t *obj)
+{
+ char buffer[4096];
+ int status;
+ int i;
+
+ status = cu_tail_read (obj->tail, buffer, sizeof (buffer), tail_callback,
+ (void *) obj);
+ if (status != 0)
+ {
+ ERROR ("tail_match: cu_tail_read failed.");
+ return (status);
+ }
+
+ for (i = 0; i < obj->matches_num; i++)
+ {
+ cu_tail_match_match_t *lt_match = obj->matches + i;
+
+ if (lt_match->submit == NULL)
+ continue;
+
+ (*lt_match->submit) (lt_match->match, lt_match->user_data);
+ }
+
+ return (0);
+} /* int tail_match_read */
+
+/* vim: set sw=2 sts=2 ts=8 : */