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Add channel locking for channel snapshot creation.

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This adds channel locks around calls to create channel snapshots as well
as other functions which operate on a channel and then end up
creating a channel snapshot. Functions that expect the channel to be
locked prior to being called have had their documentation updated to
indicate such.
........

Merged revisions 403311 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@403314 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2013-12-03 17:07:29 +00:00
parent 8b24b0d206
commit 8e8b329e14
57 changed files with 384 additions and 31 deletions
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2
channels/chan_alsa.c
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@@ -581,6 +581,7 @@ static struct ast_channel *alsa_new(struct chan_alsa_pvt *p, int state, const ch
if (!(tmp = ast_channel_alloc(1, state, 0, 0, "", p->exten, p->context, linkedid, 0, "ALSA/%s", indevname)))
return NULL;
ast_channel_lock(tmp);
ast_channel_stage_snapshot(tmp);
ast_channel_tech_set(tmp, &alsa_tech);
@@ -601,6 +602,7 @@ static struct ast_channel *alsa_new(struct chan_alsa_pvt *p, int state, const ch
ast_jb_configure(tmp, &global_jbconf);
ast_channel_stage_snapshot_done(tmp);
ast_channel_unlock(tmp);
if (state != AST_STATE_DOWN) {
if (ast_pbx_start(tmp)) {