return (NULL);
sz = strlen (orig) + 1;
- dest = (char *) malloc (sz);
+ dest = malloc (sz);
if (dest == NULL)
return (NULL);
{
meta_entry_t *e;
- e = (meta_entry_t *) malloc (sizeof (*e));
+ e = calloc (1, sizeof (*e));
if (e == NULL)
{
- ERROR ("md_entry_alloc: malloc failed.");
+ ERROR ("md_entry_alloc: calloc failed.");
return (NULL);
}
- memset (e, 0, sizeof (*e));
e->key = md_strdup (key);
if (e->key == NULL)
return (e);
} /* }}} meta_entry_t *md_entry_alloc */
-static meta_entry_t *md_entry_clone (const meta_entry_t *orig) /* {{{ */
+/* XXX: The lock on md must be held while calling this function! */
+static meta_entry_t *md_entry_clone_contents (const meta_entry_t *orig) /* {{{ */
{
meta_entry_t *copy;
- if (orig == NULL)
- return (NULL);
+ /* WARNINGS :
+ * - we do not check that orig != NULL here. You should have done it before.
+ * - we do not set copy->next. DO NOT FORGET TO SET copy->next IN YOUR FUNCTION
+ */
copy = md_entry_alloc (orig->key);
+ if (copy == NULL)
+ return (NULL);
copy->type = orig->type;
if (copy->type == MD_TYPE_STRING)
copy->value.mv_string = strdup (orig->value.mv_string);
else
copy->value = orig->value;
+ return (copy);
+} /* }}} meta_entry_t *md_entry_clone_contents */
+
+static meta_entry_t *md_entry_clone (const meta_entry_t *orig) /* {{{ */
+{
+ meta_entry_t *copy;
+
+ if (orig == NULL)
+ return (NULL);
+
+ copy = md_entry_clone_contents(orig);
+
copy->next = md_entry_clone (orig->next);
return (copy);
} /* }}} meta_entry_t *md_entry_clone */
} /* }}} int md_entry_insert */
/* XXX: The lock on md must be held while calling this function! */
+static int md_entry_insert_clone (meta_data_t *md, meta_entry_t *orig) /* {{{ */
+{
+ meta_entry_t *e;
+ meta_entry_t *this;
+ meta_entry_t *prev;
+
+ /* WARNINGS :
+ * - we do not check that md and e != NULL here. You should have done it before.
+ * - we do not use the lock. You should have set it before.
+ */
+
+ e = md_entry_clone_contents(orig);
+
+ prev = NULL;
+ this = md->head;
+ while (this != NULL)
+ {
+ if (strcasecmp (e->key, this->key) == 0)
+ break;
+
+ prev = this;
+ this = this->next;
+ }
+
+ if (this == NULL)
+ {
+ /* This key does not exist yet. */
+ if (md->head == NULL)
+ md->head = e;
+ else
+ {
+ assert (prev != NULL);
+ prev->next = e;
+ }
+
+ e->next = NULL;
+ }
+ else /* (this != NULL) */
+ {
+ if (prev == NULL)
+ md->head = e;
+ else
+ prev->next = e;
+
+ e->next = this->next;
+ }
+
+ if (this != NULL)
+ {
+ this->next = NULL;
+ md_entry_free (this);
+ }
+
+ return (0);
+} /* }}} int md_entry_insert_clone */
+
+/* XXX: The lock on md must be held while calling this function! */
static meta_entry_t *md_entry_lookup (meta_data_t *md, /* {{{ */
const char *key)
{
{
meta_data_t *md;
- md = (meta_data_t *) malloc (sizeof (*md));
+ md = calloc (1, sizeof (*md));
if (md == NULL)
{
- ERROR ("meta_data_create: malloc failed.");
+ ERROR ("meta_data_create: calloc failed.");
return (NULL);
}
- memset (md, 0, sizeof (*md));
- md->head = NULL;
pthread_mutex_init (&md->lock, /* attr = */ NULL);
return (md);
return (copy);
} /* }}} meta_data_t *meta_data_clone */
+int meta_data_clone_merge (meta_data_t **dest, meta_data_t *orig) /* {{{ */
+{
+ meta_entry_t *e;
+
+ if (orig == NULL)
+ return (0);
+
+ if (*dest == NULL) {
+ *dest = meta_data_clone(orig);
+ return(0);
+ }
+
+ pthread_mutex_lock (&orig->lock);
+ for (e=orig->head; e != NULL; e = e->next)
+ {
+ md_entry_insert_clone((*dest), e);
+ }
+ pthread_mutex_unlock (&orig->lock);
+
+ return (0);
+} /* }}} int meta_data_clone_merge */
+
void meta_data_destroy (meta_data_t *md) /* {{{ */
{
if (md == NULL)
pthread_mutex_lock (&md->lock);
for (e = md->head; e != NULL; e = e->next)
- ++count;
+ ++count;
if (count == 0)
{
*toc = calloc(count, sizeof(**toc));
for (e = md->head; e != NULL; e = e->next)
(*toc)[i++] = strdup(e->key);
-
+
pthread_mutex_unlock (&md->lock);
return count;
} /* }}} int meta_data_toc */
ERROR ("meta_data_get_string: md_strdup failed.");
return (-ENOMEM);
}
-
+
pthread_mutex_unlock (&md->lock);
*value = temp;