* barrier.c: Move _LONG and _LPLONG defines into

	implement.h; rename to PTW32_INTERLOCKED_LONG and
	PTW32_INTERLOCKED_LPLONG respectively.
	* spin.c: Likewise; ptw32_interlocked_compare_exchange used
	in place of InterlockedCompareExchange directly.
	* global.c (ptw32_interlocked_compare_exchange): Add
	prototype for this new routine pointer to be used when
	InterlockedCompareExchange isn't supported by Windows.
	* nonportable.c (pthread_win32_process_attach_np): Check for
	support of InterlockedCompareExchange in kernel32 and assign its
	address to ptw32_interlocked_compare_exchange if it exists, or
	our own ix86 specific implementation ptw32_InterlockedCompareExchange.
	*private.c (ptw32_InterlockedCompareExchange): An
	implementation of InterlockedCompareExchange() which is
	specific to ix86; written directly in assembler for either
	MSVC or GNU C; needed because Windows 95 doesn't support
	InterlockedCompareExchange().

	* sched.c (sched_get_priority_min): Extend to return
	THREAD_PRIORITY_IDLE.
	(sched_get_priority_max): Extend to return
	THREAD_PRIORITY_CRITICAL.

1 files changed, 9 insertions, 5 deletions

diff --git a/sched.c b/sched.c
index bc8aca0..8ef502f 100644
--- a/sched.c
+++ b/sched.c
@@ -155,6 +155,8 @@ int
 pthread_setschedparam(pthread_t thread, int policy,
 			  const struct sched_param *param)
 {
+  int prio;
+
   /* Validate the thread id. */
   if (thread == NULL || thread->threadH == 0)
     {
@@ -173,15 +175,17 @@ pthread_setschedparam(pthread_t thread, int policy,
       return ENOTSUP;
     }
 
+  prio = param->sched_priority;
+
   /* Validate priority level. */
-  if (param->sched_priority < sched_get_priority_min(policy) ||
-      param->sched_priority > sched_get_priority_max(policy))
+  if (prio < sched_get_priority_min(policy) ||
+      prio > sched_get_priority_max(policy))
     {
       return EINVAL;
     }
 
   /* This is practically guaranteed to return TRUE. */
-  (void) SetThreadPriority(thread->threadH, param->sched_priority);
+  (void) SetThreadPriority(thread->threadH, prio);
 
   return 0;
 }
@@ -253,7 +257,7 @@ sched_get_priority_max(int policy)
   return sched_Max(THREAD_PRIORITY_IDLE, THREAD_PRIORITY_TIME_CRITICAL);
 #else
   /* This is independent of scheduling policy in Win32. */
-  return sched_Max(THREAD_PRIORITY_LOWEST, THREAD_PRIORITY_HIGHEST);
+  return sched_Max(THREAD_PRIORITY_IDLE, THREAD_PRIORITY_TIME_CRITICAL)
 #endif
 }
 
@@ -271,7 +275,7 @@ sched_get_priority_min(int policy)
   return sched_Min(THREAD_PRIORITY_IDLE, THREAD_PRIORITY_TIME_CRITICAL);
 #else
   /* This is independent of scheduling policy in Win32. */
-  return sched_Min(THREAD_PRIORITY_LOWEST, THREAD_PRIORITY_HIGHEST);
+  return sched_Min(THREAD_PRIORITY_IDLE, THREAD_PRIORITY_TIME_CRITICAL);
 #endif
 }