give embedded modules a helping hand by backing up and restoring their global variables when they are loaded and unloaded

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@56092 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 8 insertions, 0 deletions

diff --git a/main/loader.c b/main/loader.c
index 65c95ecc6..4516b3779 100644
--- a/main/loader.c
+++ b/main/loader.c
@@ -483,6 +483,9 @@ int ast_unload_resource(const char *resource_name, enum ast_module_unload_mode f
 	if (!error)
 		ast_update_use_count();
 
+	if (!error && !mod->lib)
+		mod->info->restore_globals();
+
 	return res;
 }
 
@@ -627,6 +630,11 @@ static enum ast_module_load_result load_resource(const char *resource_name, unsi
 		return AST_MODULE_LOAD_DECLINE;
 	}
 
+	if (!mod->lib && mod->info->backup_globals()) {
+		ast_log(LOG_WARNING, "Module '%s' was unable to backup its global data.\n", resource_name);
+		return AST_MODULE_LOAD_DECLINE;
+	}
+
 	ast_clear_flag(mod, FLAG_DECLINED);
 
 	if (mod->info->load)