Fix a bug where a changed configuration file might not be available to all sorcery...

Since res_sorcery_config used a static name of "res_sorcery_config" to inform the configuration
file API that it asked for the configuration file it was possible during a reload for some sorcery
object types not to receive the new configuration file.

This change introduces a UUID on a per-sorcery config instance basis so that the unchanged state
is kept on an instance basis and not for the res_sorcery_config module as a whole.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@381037 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/res/res_sorcery_config.c b/res/res_sorcery_config.c
index 4ab0d23..1b43a18 100644 (file)
--- a/res/res_sorcery_config.c
+++ b/res/res_sorcery_config.c
@@ -36,12 +36,16 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/sorcery.h"
 #include "asterisk/astobj2.h"
 #include "asterisk/config.h"
+#include "asterisk/uuid.h"
 
 /*! \brief Default number of buckets for sorcery objects */
 #define DEFAULT_OBJECT_BUCKETS 53
 
 /*! \brief Structure for storing configuration file sourced objects */
 struct sorcery_config {
+       /*! \brief UUID for identifying us when opening a configuration file */
+       char uuid[AST_UUID_STR_LEN];
+
        /*! \brief Objects retrieved from the configuration file */
        struct ao2_global_obj objects;
 
@@ -198,7 +202,7 @@ static void sorcery_config_internal_load(void *data, const struct ast_sorcery *s
 {
        struct sorcery_config *config = data;
        struct ast_flags flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
-       struct ast_config *cfg = ast_config_load2(config->filename, "res_sorcery_config", flags);
+       struct ast_config *cfg = ast_config_load2(config->filename, config->uuid, flags);
        RAII_VAR(struct ao2_container *, objects, NULL, ao2_cleanup);
        const char *id = NULL;
 
@@ -269,11 +273,20 @@ static void *sorcery_config_open(const char *data)
 {
        char *tmp = ast_strdupa(data), *filename = strsep(&tmp, ","), *option;
        struct sorcery_config *config;
+       struct ast_uuid *uuid;
 
        if (ast_strlen_zero(filename) || !(config = ao2_alloc_options(sizeof(*config) + strlen(filename) + 1, sorcery_config_destructor, AO2_ALLOC_OPT_LOCK_NOLOCK))) {
                return NULL;
        }
 
+       if (!(uuid = ast_uuid_generate())) {
+               ao2_ref(config, -1);
+               return NULL;
+       }
+
+       ast_uuid_to_str(uuid, config->uuid, AST_UUID_STR_LEN);
+       ast_free(uuid);
+
        ast_rwlock_init(&config->objects.lock);
        config->buckets = DEFAULT_OBJECT_BUCKETS;
        strcpy(config->filename, filename);