[Asterisk-code-review] sounds index: Avoid repeatedly reindexing. (asterisk[15])

[Corey Farrell]

Corey Farrell has uploaded this change for review. ( https://gerrit.asterisk.org/7464


Change subject: sounds_index: Avoid repeatedly reindexing.
......................................................................

sounds_index: Avoid repeatedly reindexing.

The sounds index is rebuilt each time a format is registered or
unregistered.  This causes the index to be repeatedly rebuilt during
startup and shutdown.

This patch significantly reduces the work done by delaying sound index
initialization until after modules are loaded.  This way a reindex only
occurs if a format module is loaded after startup.  We also skip
reindexing when format modules are unloaded during shutdown.

Change-Id: I585fd6ee04200612ab1490dc804f76805f89cf0a
---
M main/asterisk.c
M main/sounds_index.c
2 files changed, 11 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/64/7464/1

diff --git a/main/asterisk.c b/main/asterisk.c
index 2c86d1e..2238d43 100644
--- a/main/asterisk.c
+++ b/main/asterisk.c
@@ -4632,10 +4632,15 @@
 	check_init(init_manager(), "Asterisk Manager Interface");
 	check_init(ast_enum_init(), "ENUM Support");
 	check_init(ast_cc_init(), "Call Completion Supplementary Services");
-	check_init(ast_sounds_index_init(), "Sounds Indexer");
 	check_init(load_modules(0), "Module");
 
 	/*
+	 * This is initialized after the dynamic modules load to avoid repeatedly
+	 * reindexing sounds for every format module load.
+	 */
+	check_init(ast_sounds_index_init(), "Sounds Indexer");
+
+	/*
 	 * This has to load after the dynamic modules load, as items in the media
 	 * cache can't be constructed from items in the AstDB without their
 	 * bucket backends.
diff --git a/main/sounds_index.c b/main/sounds_index.c
index c7f9f4d..c792c1b 100644
--- a/main/sounds_index.c
+++ b/main/sounds_index.c
@@ -285,13 +285,15 @@
 static void format_update_cb(void *data, struct stasis_subscription *sub,
 	struct stasis_message *message)
 {
-	ast_sounds_reindex();
+	/* Reindexing during shutdown is pointless. */
+	if (!ast_shutting_down()) {
+		ast_sounds_reindex();
+	}
 }
 
 int ast_sounds_index_init(void)
 {
 	int res = 0;
-	sounds_index = NULL;
 	if (ast_sounds_reindex()) {
 		return -1;
 	}
@@ -328,6 +330,5 @@
 
 struct ast_media_index *ast_sounds_get_index(void)
 {
-	ao2_ref(sounds_index, +1);
-	return sounds_index;
+	return ao2_bump(sounds_index);
 }

-- 
To view, visit https://gerrit.asterisk.org/7464
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Gerrit-Project: asterisk
Gerrit-Branch: 15
Gerrit-MessageType: newchange
Gerrit-Change-Id: I585fd6ee04200612ab1490dc804f76805f89cf0a
Gerrit-Change-Number: 7464
Gerrit-PatchSet: 1
Gerrit-Owner: Corey Farrell <git at cfware.com>
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