2006-11-15 Joel Sherrill <joel.sherrill@oarcorp.com>

	* libcsupport/src/termios.c, posix/Makefile.am, posix/preinstall.am,
	posix/include/rtems/posix/config.h, posix/include/rtems/posix/time.h,
	sapi/src/posixapi.c, score/Makefile.am, score/preinstall.am,
	score/include/rtems/score/corerwlock.h,
	score/include/rtems/score/threadq.h,
	score/src/corerwlockobtainread.c, score/src/threadqenqueue.c,
	score/src/threadqtimeout.c: Adding POSIX barriers, POSIX spinlocks,
	and partial implementation of POSIX rwlocks.
	* posix/include/rtems/posix/barrier.h,
	posix/include/rtems/posix/rwlock.h,
	posix/include/rtems/posix/spinlock.h,
	posix/inline/rtems/posix/barrier.inl,
	posix/inline/rtems/posix/rwlock.inl,
	posix/inline/rtems/posix/spinlock.inl,
	posix/src/barrierattrdestroy.c, posix/src/barrierattrgetpshared.c,
	posix/src/barrierattrinit.c, posix/src/barrierattrsetpshared.c,
	posix/src/pbarrier.c, posix/src/pbarrierdestroy.c,
	posix/src/pbarrierinit.c, posix/src/pbarriertranslatereturncode.c,
	posix/src/pbarrierwait.c, posix/src/prwlock.c,
	posix/src/prwlockdestroy.c, posix/src/prwlockinit.c,
	posix/src/prwlockrdlock.c, posix/src/prwlocktimedrdlock.c,
	posix/src/prwlocktimedwrlock.c,
	posix/src/prwlocktranslatereturncode.c, posix/src/prwlocktryrdlock.c,
	posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c,
	posix/src/prwlockwrlock.c, posix/src/pspin.c,
	posix/src/pspindestroy.c, posix/src/pspininit.c,
	posix/src/pspinlock.c, posix/src/pspinlocktranslatereturncode.c,
	posix/src/pspintrylock.c, posix/src/pspinunlock.c,
	posix/src/rwlockattrdestroy.c, posix/src/rwlockattrgetpshared.c,
	posix/src/rwlockattrinit.c, posix/src/rwlockattrsetpshared.c: New files.

1 files changed, 94 insertions, 0 deletions

diff --git a/cpukit/posix/src/pbarrierinit.c b/cpukit/posix/src/pbarrierinit.c
new file mode 100644
index 0000000000..408964cfed
--- /dev/null
+++ b/cpukit/posix/src/pbarrierinit.c
@@ -0,0 +1,94 @@
+/*
+ *  POSIX Barrier Manager -- Initialize a Barrier Instance
+ *
+ *  COPYRIGHT (c) 1989-2006.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <pthread.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/posix/barrier.h>
+
+/*
+ *  pthread_barrier_init
+ *
+ *  This directive creates a barrier.  A barrier id is returned.
+ *
+ *  Input parameters:
+ *    barrier          - pointer to barrier id
+ *    attr             - barrier attributes
+ *    count            - number of threads before automatic release
+ *
+ *  Output parameters:
+ *    barrier     - barrier id
+ *    0           - if successful
+ *    error code  - if unsuccessful
+ */
+
+int pthread_barrier_init(
+  pthread_barrier_t           *barrier,
+  const pthread_barrierattr_t *attr,
+  unsigned int                 count
+)
+{
+  POSIX_Barrier_Control   *the_barrier;
+  CORE_barrier_Attributes  the_attributes;
+  
+
+  if ( !barrier )
+    return EINVAL;
+
+  if ( count == 0 )
+    return EINVAL;
+
+  if ( !attr )
+    return EINVAL;
+
+  if ( !attr->is_initialized )
+    return EINVAL;
+
+  switch ( attr->process_shared ) {
+    case PTHREAD_PROCESS_PRIVATE:    /* only supported values */
+      break;
+    case PTHREAD_PROCESS_SHARED:
+    default:
+      return EINVAL;
+  }
+
+  the_attributes.discipline    = CORE_BARRIER_AUTOMATIC_RELEASE;
+  the_attributes.maximum_count = count;
+
+  _Thread_Disable_dispatch();             /* prevents deletion */
+
+  the_barrier = _POSIX_Barrier_Allocate();
+
+  if ( !the_barrier ) {
+    _Thread_Enable_dispatch();
+    return EAGAIN;
+  }
+
+  _CORE_barrier_Initialize( &the_barrier->Barrier, &the_attributes );
+
+  _Objects_Open(
+    &_POSIX_Barrier_Information,
+    &the_barrier->Object,
+    0
+  );
+
+  *barrier = the_barrier->Object.id;
+
+  _Thread_Enable_dispatch();
+  return 0;
+}