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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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4
channels/chan_motif.c
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@@ -785,6 +785,7 @@ static struct ast_channel *jingle_new(struct jingle_endpoint *endpoint, struct j
if (!(chan = ast_channel_alloc(1, state, S_OR(title, ""), S_OR(cid_name, ""), "", "", "", linkedid, 0, "Motif/%s-%04lx", str, ast_random() & 0xffff))) {
return NULL;
}
ast_channel_lock(chan);
ast_channel_stage_snapshot(chan);
@@ -852,6 +853,7 @@ static struct ast_channel *jingle_new(struct jingle_endpoint *endpoint, struct j
ao2_unlock(endpoint);
ast_channel_stage_snapshot_done(chan);
ast_channel_unlock(chan);
return chan;
}
@@ -2412,7 +2414,9 @@ static void jingle_action_session_initiate(struct jingle_endpoint *endpoint, str
ao2_link(endpoint->state->sessions, session);
ast_channel_lock(chan);
ast_setstate(chan, AST_STATE_RING);
ast_channel_unlock(chan);
res = ast_pbx_start(chan);
switch (res) {