From 799c767d319d65c94b3770e82490c8dd4dc80378 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 2 Nov 1999 18:00:15 +0000
Subject: Split the POSIX semaphore manager into multiple files.

---
 c/src/exec/posix/src/sempost.c | 53 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 c/src/exec/posix/src/sempost.c

(limited to 'c/src/exec/posix/src/sempost.c')

diff --git a/c/src/exec/posix/src/sempost.c b/c/src/exec/posix/src/sempost.c
new file mode 100644
index 0000000000..d3375ce80d
--- /dev/null
+++ b/c/src/exec/posix/src/sempost.c
@@ -0,0 +1,53 @@
+/*
+ *  $Id$
+ */
+
+#include <stdarg.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <limits.h>
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+#include <rtems/posix/semaphore.h>
+#include <rtems/posix/time.h>
+#include <rtems/posix/seterr.h>
+
+/*PAGE
+ *
+ *  11.2.7 Unlock a Semaphore, P1003.1b-1993, p.227
+ */
+
+int sem_post(
+  sem_t  *sem
+)
+{
+  register POSIX_Semaphore_Control *the_semaphore;
+  Objects_Locations                 location;
+ 
+  the_semaphore = _POSIX_Semaphore_Get( sem, &location );
+  switch ( location ) {
+    case OBJECTS_ERROR:
+      set_errno_and_return_minus_one( EINVAL );
+    case OBJECTS_REMOTE:
+      _Thread_Dispatch();
+      return POSIX_MP_NOT_IMPLEMENTED();
+      set_errno_and_return_minus_one( EINVAL );
+    case OBJECTS_LOCAL:
+      _CORE_semaphore_Surrender(
+        &the_semaphore->Semaphore,
+        the_semaphore->Object.id,
+#if defined(RTEMS_MULTIPROCESSING)
+        POSIX_Semaphore_MP_support
+#else
+        NULL
+#endif
+      );
+      _Thread_Enable_dispatch();
+      return 0;
+  }
+  return POSIX_BOTTOM_REACHED();
+}
-- 
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