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add support for thread scheduling (POSIX TPS option)

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linux's sched_* syscalls actually implement the TPS (thread
scheduling) functionality, not the PS (process scheduling)
functionality which the sched_* functions are supposed to have.
omitting support for the PS option (and having the sched_* interfaces
fail with ENOSYS rather than omitting them, since some broken software
assumes they exist) seems to be the only conforming way to do this on
linux.
This commit is contained in:
Rich Felker
2012-11-11 15:38:04 -05:00
parent e9b885ee55
commit 1e21e78bf7
23 changed files with 159 additions and 13 deletions
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10
src/thread/pthread_setschedprio.c Normal file
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@ -0,0 +1,10 @@
#include "pthread_impl.h"
int pthread_setschedprio(pthread_t t, int prio)
{
int r;
__lock(t->killlock);
r = t->dead ? ESRCH : -__syscall(SYS_sched_setparam, t->tid, &prio);
__unlock(t->killlock);
return r;
}