1 files changed, 77 insertions, 0 deletions
diff --git a/ACE/ace/os_include/os_semaphore.h b/ACE/ace/os_include/os_semaphore.h
new file mode 100644
index 00000000000..edf5532c6c5
--- /dev/null
+++ b/ACE/ace/os_include/os_semaphore.h
@@ -0,0 +1,77 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    os_semaphore.h
+ *
+ *  semaphores (REALTIME)
+ *
+ *  $Id$
+ *
+ *  @author Don Hinton <dhinton@dresystems.com>
+ *  @author This code was originally in various places including ace/OS.h.
+ */
+//=============================================================================
+
+#ifndef ACE_OS_INCLUDE_OS_SEMAPHORE_H
+#define ACE_OS_INCLUDE_OS_SEMAPHORE_H
+
+#include /**/ "ace/pre.h"
+
+#include /**/ "ace/config-all.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ace/os_include/os_time.h"
+
+#if !defined (ACE_LACKS_SEMAPHORE_H)
+# include /**/ <semaphore.h>
+#endif /* !ACE_LACKS_SEMAPHORE_H */
+
+// Place all additions (especially function declarations) within extern "C" {}
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#if defined (ACE_HAS_POSIX_SEM)
+#  if !defined (SEM_FAILED) && !defined (ACE_LACKS_NAMED_POSIX_SEM)
+#    define SEM_FAILED ((sem_t *) -1)
+#  endif  /* !SEM_FAILED */
+
+   typedef struct
+   {
+     /// Pointer to semaphore handle.  This is allocated by ACE if we are
+     /// working with an unnamed POSIX semaphore or by the OS if we are
+     /// working with a named POSIX semaphore.
+     sem_t *sema_;
+
+     /// Name of the semaphore (if this is non-NULL then this is a named
+     /// POSIX semaphore, else its an unnamed POSIX semaphore).
+     char *name_;
+
+#  if defined (ACE_LACKS_NAMED_POSIX_SEM)
+     /// this->sema_ doesn't always get created dynamically if a platform
+     /// doesn't support named posix semaphores.  We use this flag to
+     /// remember if we need to delete <sema_> or not.
+     bool new_sema_;
+#  endif /* ACE_LACKS_NAMED_POSIX_SEM */
+
+#  if !defined (ACE_HAS_POSIX_SEM_TIMEOUT) && !defined (ACE_DISABLE_POSIX_SEM_TIMEOUT_EMULATION)
+     /// Serialize access to internal state.
+     ACE_mutex_t lock_;
+
+     /// Block until there are no waiters.
+     ACE_cond_t count_nonzero_;
+#  endif /* !ACE_HAS_POSIX_SEM_TIMEOUT && !ACE_DISABLE_POSIX_SEM_TIMEOUT_EMULATION */
+   } ACE_sema_t;
+#endif /* ACE_HAS_POSIX_SEM */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#include /**/ "ace/post.h"
+#endif /* ACE_OS_INCLUDE_OS_SEMAPHORE_H */