**/
#include "collectd.h"
+
#include "plugin.h"
-#include "utils_fbhash.h"
#include "utils_avltree.h"
+#include "utils_fbhash.h"
-struct fbhash_s
-{
+struct fbhash_s {
char *filename;
time_t mtime;
/*
* Private functions
*/
-static void fbh_free_tree (c_avl_tree_t *tree) /* {{{ */
+static void fbh_free_tree(c_avl_tree_t *tree) /* {{{ */
{
int status;
if (tree == NULL)
return;
- while (42)
- {
+ while (42) {
char *key = NULL;
char *value = NULL;
- status = c_avl_pick (tree, (void *) &key, (void *) &value);
+ status = c_avl_pick(tree, (void *)&key, (void *)&value);
if (status != 0)
break;
- free (key);
- free (value);
+ free(key);
+ free(value);
}
- c_avl_destroy (tree);
+ c_avl_destroy(tree);
} /* }}} void fbh_free_tree */
-static int fbh_read_file (fbhash_t *h) /* {{{ */
+static int fbh_read_file(fbhash_t *h) /* {{{ */
{
FILE *fh;
char buffer[4096];
- struct flock fl = { 0 };
+ struct flock fl = {0};
c_avl_tree_t *tree;
int status;
- fh = fopen (h->filename, "r");
+ fh = fopen(h->filename, "r");
if (fh == NULL)
- return (-1);
+ return -1;
fl.l_type = F_RDLCK;
fl.l_whence = SEEK_SET;
/* TODO: Lock file? -> fcntl */
- status = fcntl (fileno (fh), F_SETLK, &fl);
- if (status != 0)
- {
- fclose (fh);
- return (-1);
+ status = fcntl(fileno(fh), F_SETLK, &fl);
+ if (status != 0) {
+ fclose(fh);
+ return -1;
}
- tree = c_avl_create ((int (*) (const void *, const void *)) strcmp);
- if (tree == NULL)
- {
- fclose (fh);
- return (-1);
+ tree = c_avl_create((int (*)(const void *, const void *))strcmp);
+ if (tree == NULL) {
+ fclose(fh);
+ return -1;
}
/* Read `fh' into `tree' */
- while (fgets (buffer, sizeof (buffer), fh) != NULL) /* {{{ */
+ while (fgets(buffer, sizeof(buffer), fh) != NULL) /* {{{ */
{
size_t len;
char *key;
char *key_copy;
char *value_copy;
- buffer[sizeof (buffer) - 1] = 0;
- len = strlen (buffer);
+ buffer[sizeof(buffer) - 1] = 0;
+ len = strlen(buffer);
/* Remove trailing newline characters. */
- while ((len > 0)
- && ((buffer[len - 1] == '\n') || (buffer[len - 1] == '\r')))
- {
+ 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))
+ while ((*key != 0) && isspace((int)*key))
key++;
/* Skip empty lines and comments */
continue;
/* Seek first colon */
- value = strchr (key, ':');
+ value = strchr(key, ':');
if (value == NULL)
continue;
value++;
/* Skip leading whitespace */
- while ((*value != 0) && isspace ((int) *value))
+ while ((*value != 0) && isspace((int)*value))
value++;
/* Skip lines without value */
if (value[0] == 0)
continue;
- key_copy = strdup (key);
- value_copy = strdup (value);
+ key_copy = strdup(key);
+ value_copy = strdup(value);
- if ((key_copy == NULL) || (value_copy == NULL))
- {
- free (key_copy);
- free (value_copy);
+ 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);
+ 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);
+ DEBUG("utils_fbhash: fbh_read_file: key = %s; value = %s;", key, value);
} /* }}} while (fgets) */
- fclose (fh);
+ fclose(fh);
- fbh_free_tree (h->tree);
+ fbh_free_tree(h->tree);
h->tree = tree;
- return (0);
+ return 0;
} /* }}} int fbh_read_file */
-static int fbh_check_file (fbhash_t *h) /* {{{ */
+static int fbh_check_file(fbhash_t *h) /* {{{ */
{
- struct stat statbuf = { 0 };
+ struct stat statbuf = {0};
int status;
- status = stat (h->filename, &statbuf);
+ status = stat(h->filename, &statbuf);
if (status != 0)
- return (-1);
+ return -1;
if (h->mtime >= statbuf.st_mtime)
- return (0);
+ return 0;
- status = fbh_read_file (h);
+ status = fbh_read_file(h);
if (status == 0)
h->mtime = statbuf.st_mtime;
- return (status);
+ return status;
} /* }}} int fbh_check_file */
/*
* Public functions
*/
-fbhash_t *fbh_create (const char *file) /* {{{ */
+fbhash_t *fbh_create(const char *file) /* {{{ */
{
fbhash_t *h;
int status;
if (file == NULL)
- return (NULL);
+ return NULL;
- h = calloc (1, sizeof (*h));
+ h = calloc(1, sizeof(*h));
if (h == NULL)
- return (NULL);
+ return NULL;
- h->filename = strdup (file);
- if (h->filename == NULL)
- {
- free (h);
- return (NULL);
+ h->filename = strdup(file);
+ if (h->filename == NULL) {
+ free(h);
+ return NULL;
}
h->mtime = 0;
- pthread_mutex_init (&h->lock, /* attr = */ NULL);
+ pthread_mutex_init(&h->lock, /* attr = */ NULL);
- status = fbh_check_file (h);
- if (status != 0)
- {
- fbh_destroy (h);
- free (h);
- return (NULL);
+ status = fbh_check_file(h);
+ if (status != 0) {
+ fbh_destroy(h);
+ free(h);
+ return NULL;
}
- return (h);
+ return h;
} /* }}} fbhash_t *fbh_create */
-void fbh_destroy (fbhash_t *h) /* {{{ */
+void fbh_destroy(fbhash_t *h) /* {{{ */
{
if (h == NULL)
return;
- pthread_mutex_destroy (&h->lock);
- free (h->filename);
- fbh_free_tree (h->tree);
+ 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 *fbh_get(fbhash_t *h, const char *key) /* {{{ */
{
char *value;
char *value_copy;
int status;
if ((h == NULL) || (key == NULL))
- return (NULL);
+ return NULL;
value = NULL;
value_copy = NULL;
- pthread_mutex_lock (&h->lock);
+ pthread_mutex_lock(&h->lock);
/* TODO: Checking this every time may be a bit much..? */
- fbh_check_file (h);
+ fbh_check_file(h);
- status = c_avl_get (h->tree, key, (void *) &value);
- if (status == 0)
- {
- assert (value != NULL);
- value_copy = strdup (value);
+ status = c_avl_get(h->tree, key, (void *)&value);
+ if (status == 0) {
+ assert(value != NULL);
+ value_copy = strdup(value);
}
- pthread_mutex_unlock (&h->lock);
+ pthread_mutex_unlock(&h->lock);
- return (value_copy);
+ return value_copy;
} /* }}} char *fbh_get */
-
-/* vim: set sw=2 sts=2 et fdm=marker : */
projects / collectd.git / blobdiff