From 05fd2ef0a6494a76b59a92198a9f7a33dafe51db Mon Sep 17 00:00:00 2001 From: "David M. Lee" Date: Mon, 27 Aug 2012 16:56:56 +0000 Subject: Fixes ast_rwlock_timed[rd|wr]lock for BSD and variants. The original implementations simply wrap pthread functions, which take absolute time as an argument. The spinlock version for systems without those functions treated the argument as a delta. This patch fixes the spinlock version to be consistent with the pthread version. (closes issue ASTERISK-20240) Reported by: Egor Gorlin Patches: lock.c.patch uploaded by Egor Gorlin (license 6416) ........ Merged revisions 371718 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 371720 from http://svn.asterisk.org/svn/asterisk/branches/11 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@371721 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- main/lock.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'main/lock.c') diff --git a/main/lock.c b/main/lock.c index b954977b1..eef5d8621 100644 --- a/main/lock.c +++ b/main/lock.c @@ -1141,13 +1141,13 @@ int __ast_rwlock_timedrdlock(const char *filename, int line, const char *func, a res = pthread_rwlock_timedrdlock(&t->lock, abs_timeout); #else do { - struct timeval _start = ast_tvnow(), _diff; + struct timeval _now; for (;;) { if (!(res = pthread_rwlock_tryrdlock(&t->lock))) { break; } - _diff = ast_tvsub(ast_tvnow(), _start); - if (_diff.tv_sec > abs_timeout->tv_sec || (_diff.tv_sec == abs_timeout->tv_sec && _diff.tv_usec * 1000 > abs_timeout->tv_nsec)) { + _now = ast_tvnow(); + if (_now.tv_sec > abs_timeout->tv_sec || (_now.tv_sec == abs_timeout->tv_sec && _now.tv_usec * 1000 > abs_timeout->tv_nsec)) { break; } usleep(1); @@ -1244,13 +1244,13 @@ int __ast_rwlock_timedwrlock(const char *filename, int line, const char *func, a res = pthread_rwlock_timedwrlock(&t->lock, abs_timeout); #else do { - struct timeval _start = ast_tvnow(), _diff; + struct timeval _now; for (;;) { if (!(res = pthread_rwlock_trywrlock(&t->lock))) { break; } - _diff = ast_tvsub(ast_tvnow(), _start); - if (_diff.tv_sec > abs_timeout->tv_sec || (_diff.tv_sec == abs_timeout->tv_sec && _diff.tv_usec * 1000 > abs_timeout->tv_nsec)) { + _now = ast_tvnow(); + if (_now.tv_sec > abs_timeout->tv_sec || (_now.tv_sec == abs_timeout->tv_sec && _now.tv_usec * 1000 > abs_timeout->tv_nsec)) { break; } usleep(1); -- cgit v1.2.3