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access channel locks through ast_channel_lock/unlock/trylock and not

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through ast_mutex primitives.

To detect all occurrences, I have renamed the lock field in struct ast_channel
so it is clear that it shouldn't be used directly.

There are some uses in res/res_features.c (see details of the diff)
that are error prone as they try and lock two channels without
caring about the order (or without explaining why it is safe).



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89293 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2007-11-15 16:20:47 +00:00
parent 139978dbb7
commit 09d9cce1d8
8 changed files with 30 additions and 30 deletions
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2
include/asterisk/channel.h
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@@ -421,7 +421,7 @@ struct ast_channel {
directly, use ast_softhangup() */
time_t whentohangup; /*!< Non-zero, set to actual time when channel is to be hung up */
pthread_t blocker; /*!< If anyone is blocking, this is them */
ast_mutex_t lock; /*!< Lock, can be used to lock a channel for some operations - see ast_channel_lock() */
ast_mutex_t lock_dont_use; /*!< Lock, can be used to lock a channel for some operations - see ast_channel_lock() */
const char *blockproc; /*!< Procedure causing blocking */
const char *appl; /*!< Current application */