diff options
| author | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-01-27 21:59:53 +0000 |
|---|---|---|
| committer | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-01-27 21:59:53 +0000 |
| commit | 940f913146cc96cda9132600151d40ee85680ee6 (patch) | |
| tree | a0610b66a954f2b2f98aedcd42cbc2b4250184b8 /include | |
| parent | 74e414e5f2dbf490e4c2f67ce638e0ec9e4ad0ae (diff) | |
When deleting a task from the scheduler, ignoring the return value could
possibly cause memory to be accessed after it is freed, which causes all
sorts of random memory corruption. Instead, if a deletion fails, wait a
bit and try again (noting that another thread could change our taskid
value).
(closes issue #11386)
Reported by: flujan
Patches:
20080124__bug11386.diff.txt uploaded by Corydon76 (license 14)
Tested by: Corydon76, flujan, stuarth`
git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@100465 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'include')
| -rw-r--r-- | include/asterisk/sched.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asterisk/sched.h b/include/asterisk/sched.h index 7489c6377..84a65a07a 100644 --- a/include/asterisk/sched.h +++ b/include/asterisk/sched.h @@ -35,6 +35,16 @@ extern "C" { */ #define SCHED_MAX_CACHE 128 +#define AST_SCHED_DEL(sched, id) \ + do { \ + int _count = 0; \ + while (id > -1 && ast_sched_del(sched, id) && _count++ < 10) \ + usleep(1); \ + if (_count == 10) \ + ast_log(LOG_WARNING, "Unable to cancel schedule ID %d. This is probably a bug (%s: %s, line %d).\n", id, __FILE__, __PRETTY_FUNCTION__, __LINE__); \ + id = -1; \ + } while (0); + struct sched_context; /*! \brief New schedule context |