Revamp suspend and resume. While I'm here add pthread_suspend_all_np()

and pthread_resume_all_np().  These suspend and resume all threads except
the current thread, respectively.  The existing functions pthread_single_np()
and pthread_multi_np(), which formerly had no effect, now exhibit the same
behaviour and pthread_suspend_all_np() and pthread_resume_all_np().  These
functions have been added mostly for the native java port.

Don't allow the uthread kernel pipe to use the same descriptors as
stdio.  Mostily submitted by Oswald Buddenhagen <ossi@kde.org>.

Correct some minor style nits.

1 files changed, 4 insertions, 16 deletions

diff --git a/lib/libkse/thread/thr_cond.c b/lib/libkse/thread/thr_cond.c
index 7f3fe7a..cb45725 100644
--- a/lib/libkse/thread/thr_cond.c
+++ b/lib/libkse/thread/thr_cond.c
@@ -524,15 +524,9 @@ _pthread_cond_signal(pthread_cond_t * cond)
 
 			if ((pthread = cond_queue_deq(*cond)) != NULL) {
 				/*
-				 * Unless the thread is currently suspended,
-				 * allow it to run.  If the thread is suspended,
-				 * make a note that the thread isn't in a wait
-				 * queue any more.
+				 * Wake up the signaled thread:
 				 */
-				if (pthread->state != PS_SUSPENDED)
-					PTHREAD_NEW_STATE(pthread,PS_RUNNING);
-				else
-					pthread->suspended = SUSP_NOWAIT;
+				PTHREAD_NEW_STATE(pthread, PS_RUNNING);
 			}
 
 			/* Check for no more waiters: */
@@ -596,15 +590,9 @@ _pthread_cond_broadcast(pthread_cond_t * cond)
 			 */
 			while ((pthread = cond_queue_deq(*cond)) != NULL) {
 				/*
-				 * Unless the thread is currently suspended,
-				 * allow it to run.  If the thread is suspended,
-				 * make a note that the thread isn't in a wait
-				 * queue any more.
+				 * Wake up the signaled thread:
 				 */
-				if (pthread->state != PS_SUSPENDED)
-					PTHREAD_NEW_STATE(pthread,PS_RUNNING);
-				else
-					pthread->suspended = SUSP_NOWAIT;
+				PTHREAD_NEW_STATE(pthread, PS_RUNNING);
 			}
 
 			/* There are no more waiting threads: */