![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/utils_fbhash.c b/src/utils_fbhash.c
--- a/src/utils_fbhash.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/**
- * collectd - src/utils_fbhash.c
- * Copyright (C) 2009 Florian octo 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 octo Forster <octo at collectd.org>
- **/
-
-#include "collectd.h"
-#include "plugin.h"
-
-#include <pthread.h>
-
-#include "utils_fbhash.h"
-#include "utils_avltree.h"
-
-struct fbhash_s
-{
- char *filename;
- time_t mtime;
-
- pthread_mutex_t lock;
- c_avl_tree_t *tree;
-};
-
-/*
- * Private functions
- */
-static void fbh_free_tree (c_avl_tree_t *tree) /* {{{ */
-{
- int status;
-
- if (tree == NULL)
- return;
-
- while (42)
- {
- char *key = NULL;
- char *value = NULL;
-
- status = c_avl_pick (tree, (void *) &key, (void *) &value);
- if (status != 0)
- break;
-
- free (key);
- free (value);
- }
-
- c_avl_destroy (tree);
-} /* }}} void fbh_free_tree */
-
-static int fbh_read_file (fbhash_t *h) /* {{{ */
-{
- FILE *fh;
- char buffer[4096];
- struct flock fl;
- c_avl_tree_t *tree;
- int status;
-
- fh = fopen (h->filename, "r");
- if (fh == NULL)
- return (-1);
-
- memset (&fl, 0, sizeof (fl));
- fl.l_type = F_RDLCK;
- fl.l_whence = SEEK_SET;
- fl.l_start = 0;
- fl.l_len = 0; /* == entire file */
- /* TODO: Lock file? -> fcntl */
-
- status = fcntl (fileno (fh), F_SETLK, &fl);
- if (status != 0)
- {
- fclose (fh);
- return (-1);
- }
-
- tree = c_avl_create ((void *) strcmp);
- if (tree == NULL)
- {
- fclose (fh);
- return (-1);
- }
-
- /* Read `fh' into `tree' */
- while (fgets (buffer, sizeof (buffer), fh) != NULL) /* {{{ */
- {
- size_t len;
- char *key;
- char *value;
-
- char *key_copy;
- char *value_copy;
-
- buffer[sizeof (buffer) - 1] = 0;
- len = strlen (buffer);
-
- /* Remove trailing newline characters. */
- while ((len > 0)
- && ((buffer[len - 1] == '\n') || (buffer[len - 1] == '\r')))
- {
- len--;
- buffer[len] = 0;
- }
-
- /* Seek first non-space character */
- key = buffer;
- while ((*key != 0) && isspace ((int) *key))
- key++;
-
- /* Skip empty lines and comments */
- if ((key[0] == 0) || (key[0] == '#'))
- continue;
-
- /* Seek first colon */
- value = strchr (key, ':');
- if (value == NULL)
- continue;
-
- /* Null-terminate `key'. */
- *value = 0;
- value++;
-
- /* Skip leading whitespace */
- while ((*value != 0) && isspace ((int) *value))
- value++;
-
- /* Skip lines without value */
- if (value[0] == 0)
- continue;
-
- key_copy = strdup (key);
- value_copy = strdup (value);
-
- if ((key_copy == NULL) || (value_copy == NULL))
- {
- free (key_copy);
- free (value_copy);
- continue;
- }
-
- status = c_avl_insert (tree, key_copy, value_copy);
- if (status != 0)
- {
- free (key_copy);
- free (value_copy);
- continue;
- }
-
- DEBUG ("utils_fbhash: fbh_read_file: key = %s; value = %s;",
- key, value);
- } /* }}} while (fgets) */
-
- fclose (fh);
-
- fbh_free_tree (h->tree);
- h->tree = tree;
-
- return (0);
-} /* }}} int fbh_read_file */
-
-static int fbh_check_file (fbhash_t *h) /* {{{ */
-{
- struct stat statbuf;
- int status;
-
- memset (&statbuf, 0, sizeof (statbuf));
-
- status = stat (h->filename, &statbuf);
- if (status != 0)
- return (-1);
-
- if (h->mtime >= statbuf.st_mtime)
- return (0);
-
- status = fbh_read_file (h);
- if (status == 0)
- h->mtime = statbuf.st_mtime;
-
- return (status);
-} /* }}} int fbh_check_file */
-
-/*
- * Public functions
- */
-fbhash_t *fbh_create (const char *file) /* {{{ */
-{
- fbhash_t *h;
- int status;
-
- if (file == NULL)
- return (NULL);
-
- h = malloc (sizeof (*h));
- if (h == NULL)
- return (NULL);
- memset (h, 0, sizeof (*h));
-
- h->filename = strdup (file);
- if (h->filename == NULL)
- {
- free (h);
- return (NULL);
- }
-
- h->mtime = 0;
- pthread_mutex_init (&h->lock, /* attr = */ NULL);
-
- status = fbh_check_file (h);
- if (status != 0)
- {
- fbh_destroy (h);
- return (NULL);
- }
-
- return (h);
-} /* }}} fbhash_t *fbh_create */
-
-void fbh_destroy (fbhash_t *h) /* {{{ */
-{
- if (h == NULL)
- return;
-
- pthread_mutex_destroy (&h->lock);
- free (h->filename);
- fbh_free_tree (h->tree);
-} /* }}} void fbh_destroy */
-
-char *fbh_get (fbhash_t *h, const char *key) /* {{{ */
-{
- char *value;
- char *value_copy;
- int status;
-
- if ((h == NULL) || (key == NULL))
- return (NULL);
-
- value = NULL;
- value_copy = NULL;
-
- pthread_mutex_lock (&h->lock);
-
- /* TODO: Checking this every time may be a bit much..? */
- fbh_check_file (h);
-
- status = c_avl_get (h->tree, key, (void *) &value);
- if (status == 0)
- {
- assert (value != NULL);
- value_copy = strdup (value);
- }
-
- pthread_mutex_unlock (&h->lock);
-
- return (value_copy);
-} /* }}} char *fbh_get */
-
-/* vim: set sw=2 sts=2 et fdm=marker : */