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thread_pthread.c (rb_sigwait_fd_get): skip getpid check

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This is not called in signal handlers, so there's no reason for
it.  glibc 2.25+ no longer caches getpid(), so it will cost a
syscall for those users.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-08-17 02:06:54 +00:00
parent 028cda35c7
commit 8b6297e56d
1 changed files with 2 additions and 5 deletions
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7
thread_pthread.c
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@ -1866,11 +1866,8 @@ rb_sleep_cond_put(rb_nativethread_cond_t *cond)
int int
rb_sigwait_fd_get(const rb_thread_t *th) rb_sigwait_fd_get(const rb_thread_t *th)
{ {
rb_pid_t current = getpid(); if (signal_self_pipe.normal[0] >= 0) {
VM_ASSERT(signal_self_pipe.owner_process == getpid());
if (signal_self_pipe.owner_process == current &&
signal_self_pipe.normal[0] >= 0) {
/* /*
* no need to keep firing the timer if any thread is sleeping * no need to keep firing the timer if any thread is sleeping
* on the signal self-pipe * on the signal self-pipe