Add channel locking for channel snapshot creation.

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

View File

@@ -1481,9 +1481,11 @@ static enum agi_result launch_asyncagi(struct ast_channel *chan, int argc, char
to execute based on the setup info */
ast_uri_encode(agi_buffer, ami_buffer, AMI_BUF_SIZE, ast_uri_http);
startblob = ast_json_pack("{s: s}", "Env", ami_buffer);
ast_channel_lock(chan);
ast_channel_publish_blob(chan, agi_async_start_type(), startblob);
hungup = ast_check_hangup(chan);
ast_channel_unlock(chan);
for (;;) {
/*
* Process as many commands as we can. Commands are added via
@@ -1527,7 +1529,9 @@ static enum agi_result launch_asyncagi(struct ast_channel *chan, int argc, char
if (execblob && !ast_strlen_zero(cmd->cmd_id)) {
ast_json_object_set(execblob, "CommandId", ast_json_string_create(cmd->cmd_id));
}
ast_channel_lock(chan);
ast_channel_publish_blob(chan, agi_async_exec_type(), execblob);
ast_channel_unlock(chan);
free_agi_cmd(cmd);
@@ -1587,7 +1591,9 @@ async_agi_done:
ast_speech_destroy(async_agi.speech);
}
/* notify manager users this channel cannot be controlled anymore by Async AGI */
ast_channel_lock(chan);
ast_channel_publish_blob(chan, agi_async_end_type(), NULL);
ast_channel_unlock(chan);
async_agi_abort:
/* close the pipe */
@@ -2716,7 +2722,9 @@ static int handle_autohangup(struct ast_channel *chan, AGI *agi, int argc, const
whentohangup.tv_sec = timeout;
whentohangup.tv_usec = (timeout - whentohangup.tv_sec) * 1000000.0;
}
ast_channel_lock(chan);
ast_channel_setwhentohangup_tv(chan, whentohangup);
ast_channel_unlock(chan);
ast_agi_send(agi->fd, chan, "200 result=0\n");
return RESULT_SUCCESS;
}
@@ -3657,7 +3665,9 @@ static void publish_async_exec_end(struct ast_channel *chan, int command_id, con
"Command", command,
"ResultCode", result_code,
"Result", result);
ast_channel_lock(chan);
ast_channel_publish_blob(chan, agi_exec_end_type(), blob);
ast_channel_unlock(chan);
}
static enum agi_result agi_handle_command(struct ast_channel *chan, AGI *agi, char *buf, int dead)
@@ -3675,7 +3685,9 @@ static enum agi_result agi_handle_command(struct ast_channel *chan, AGI *agi, ch
startblob = ast_json_pack("{s: i, s: s}",
"CommandId", command_id,
"Command", ami_cmd);
ast_channel_lock(chan);
ast_channel_publish_blob(chan, agi_exec_start_type(), startblob);
ast_channel_unlock(chan);
parse_args(buf, &argc, argv);
c = find_command(argv, 0);