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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_gtalk.c
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@@ -1150,6 +1150,7 @@ static struct ast_channel *gtalk_new(struct gtalk *client, struct gtalk_pvt *i,
return NULL;
}
ast_channel_lock(tmp);
ast_channel_stage_snapshot(tmp);
ast_channel_tech_set(tmp, &gtalk_tech);
@@ -1226,6 +1227,7 @@ static struct ast_channel *gtalk_new(struct gtalk *client, struct gtalk_pvt *i,
ast_jb_configure(tmp, &global_jbconf);
ast_channel_stage_snapshot_done(tmp);
ast_channel_unlock(tmp);
if (state != AST_STATE_DOWN && ast_pbx_start(tmp)) {
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ast_channel_name(tmp));
@@ -1419,7 +1421,9 @@ static int gtalk_newcall(struct gtalk *client, ikspak *pak)
ast_format_cap_joint_copy(p->cap, p->peercap, p->jointcap);
ast_mutex_unlock(&p->lock);
ast_channel_lock(chan);
ast_setstate(chan, AST_STATE_RING);
ast_channel_unlock(chan);
if (ast_format_cap_is_empty(p->jointcap)) {
ast_log(LOG_WARNING, "Capabilities don't match : us - %s, peer - %s, combined - %s \n", ast_getformatname_multiple(s1, BUFSIZ, p->cap),
ast_getformatname_multiple(s2, BUFSIZ, p->peercap),