Revamp libpthread so that it has a chance of working in an SMP

environment.  This includes support for multiple KSEs and KSEGs.

The ability to create more than 1 KSE via pthread_setconcurrency()
is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads.
Those should come shortly.

There are still some known issues which davidxu and I are working
on, but it'll make it easier for us by committing what we have.

This library now passes all of the ACE tests that libc_r passes
with the exception of one.  It also seems to work OK with KDE
including konqueror, kwrite, etc.  I haven't been able to get
mozilla to run due to lack of java plugin, so I'd be interested
to see how it works with that.

Reviewed by:	davidxu

1 files changed, 3 insertions, 2 deletions

diff --git a/lib/libpthread/thread/thr_wait4.c b/lib/libpthread/thread/thr_wait4.c
index 07b0c84..9f23584 100644
--- a/lib/libpthread/thread/thr_wait4.c
+++ b/lib/libpthread/thread/thr_wait4.c
@@ -43,11 +43,12 @@ __weak_reference(__wait4, wait4);
 pid_t
 __wait4(pid_t pid, int *istat, int options, struct rusage *rusage)
 {
+	struct pthread *curthread = _get_curthread();
 	pid_t ret;
 
-	_thread_enter_cancellation_point();
+	_thr_enter_cancellation_point(curthread);
 	ret = _wait4(pid, istat, options, rusage);
-	_thread_leave_cancellation_point();
+	_thr_leave_cancellation_point(curthread);
 
 	return ret;
 }