diff options
Diffstat (limited to 'channels/chan_sip.c')
-rw-r--r-- | channels/chan_sip.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index cfbcb1608..276577dd1 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -61,6 +61,8 @@ * if it's a response to an outbound request, it's sent to handle_response(). * If it is a request, handle_request sends it to one of a list of functions * depending on the request type - INVITE, OPTIONS, REFER, BYE, CANCEL etc + * sipsock_read locks the ast_channel if it exists (an active call) and + * unlocks it after we have processed the SIP message. * * A new INVITE is sent to handle_request_invite(), that will end up * starting a new channel in the PBX, the new channel after that executing @@ -11867,6 +11869,7 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc } /*! \brief Read data from SIP socket +\note sipsock_read locks the owner channel while we are processing the SIP message \return 1 on error, 0 on success \note Successful messages is connected to SIP call and forwarded to handle_request() */ @@ -11924,6 +11927,8 @@ static int sipsock_read(int *id, int fd, short events, void *ignore) /* Process request, with netlock held */ retrylock: ast_mutex_lock(&netlock); + + /* Find the active SIP dialog or create a new one */ p = find_call(&req, &sin, req.method); /* returns p locked */ if (p) { /* Go ahead and lock the owner if it has one -- we may need it */ |