[asterisk-users] Creating a Voicemail ...

[Russell Bryant]

Eric "ManxPower" Wieling wrote:
> I believe that Asterisk's app_voicemail uses lock files for locking 
> mailboxes when creating a message.  IIRC, Asterisk records the voicemail 
> message in a temp audio file, locks the mailbox, moves the file into the 
> mailbox, then unlocks the mailbox.
> 
> Check the code to see what it does.

You're right.  You can look in ast_lock_path() or ast_unlock_path() in 
main/app.c to see the implementation.

It creates a .lock file in the mailbox's directory.  Then, it won't write 
anything in that directory while the file already exists.

-- 
Russell Bryant
Software Engineer
Digium, Inc.