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ensure scheduling priority is inherited into new threads (issue #5293)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6692 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-09-29 04:08:18 +00:00
parent 3b7332c5e6
commit 91b72f5ff0
1 changed files with 13 additions and 0 deletions
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13
utils.c
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@@ -475,6 +475,19 @@ int ast_pthread_create_stack(pthread_t *thread, pthread_attr_t *attr, void *(*st
pthread_attr_init(&lattr); pthread_attr_init(&lattr);
attr = &lattr; attr = &lattr;
} }
#ifdef __linux__
/* On Linux, pthread_attr_init() defaults to PTHREAD_EXPLICIT_SCHED,
which is kind of useless. Change this here to
PTHREAD_INHERIT_SCHED; that way the -p option to set realtime
priority will propagate down to new threads by default.
This does mean that callers cannot set a different priority using
PTHREAD_EXPLICIT_SCHED in the attr argument; instead they must set
the priority afterwards with pthread_setschedparam(). */
errno = pthread_attr_setinheritsched(attr, PTHREAD_INHERIT_SCHED);
if (errno)
ast_log(LOG_WARNING, "pthread_attr_setinheritsched returned non-zero: %s\n", strerror(errno));
#endif
if (!stacksize) if (!stacksize)
stacksize = AST_STACKSIZE; stacksize = AST_STACKSIZE;
errno = pthread_attr_setstacksize(attr, stacksize); errno = pthread_attr_setstacksize(attr, stacksize);