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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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6
main/stasis_bridges.c
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@@ -397,7 +397,9 @@ struct stasis_message *ast_bridge_blob_create(
}
if (chan) {
ast_channel_lock(chan);
obj->channel = ast_channel_snapshot_create(chan);
ast_channel_unlock(chan);
if (obj->channel == NULL) {
return NULL;
}
@@ -579,7 +581,9 @@ static int bridge_channel_snapshot_pair_init(struct ast_bridge_channel_pair *pai
}
}
ast_channel_lock(pair->channel);
snapshot_pair->channel_snapshot = ast_channel_snapshot_create(pair->channel);
ast_channel_unlock(pair->channel);
if (!snapshot_pair->channel_snapshot) {
return -1;
}
@@ -915,7 +919,9 @@ void ast_bridge_publish_attended_transfer_link(int is_external, enum ast_transfe
transfer_msg->dest_type = AST_ATTENDED_TRANSFER_DEST_LINK;
for (i = 0; i < 2; ++i) {
ast_channel_lock(locals[i]);
transfer_msg->dest.links[i] = ast_channel_snapshot_create(locals[i]);
ast_channel_unlock(locals[i]);
if (!transfer_msg->dest.links[i]) {
return;
}