--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nspr/pr/src/misc/pripcsem.c	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * File: pripcsem.c
+ *
+ * Description: implements the named semaphores API in prsemipc.h
+ * for classic NSPR.  If _PR_HAVE_NAMED_SEMAPHORES is not defined,
+ * the named semaphore functions all fail with the error code
+ * PR_NOT_IMPLEMENTED_ERROR.
+ */
+
+#include "primpl.h"
+
+#ifdef _PR_PTHREADS
+
+#error "This file should not be compiled for the pthreads version"
+
+#else
+
+#ifndef _PR_HAVE_NAMED_SEMAPHORES
+
+PRSem * _PR_MD_OPEN_SEMAPHORE(
+    const char *osname, PRIntn flags, PRIntn mode, PRUintn value)
+{
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return NULL;
+}
+
+PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem)
+{
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return PR_FAILURE;
+}
+
+PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem)
+{
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return PR_FAILURE;
+}
+
+PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem)
+{
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return PR_FAILURE;
+}
+
+PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname)
+{
+    PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
+    return PR_FAILURE;
+}
+
+#endif /* !_PR_HAVE_NAMED_SEMAPHORES */
+
+PR_IMPLEMENT(PRSem *) PR_OpenSemaphore(
+    const char *name, PRIntn flags, PRIntn mode, PRUintn value)
+{
+    char osname[PR_IPC_NAME_SIZE];
+
+    if (!_pr_initialized) _PR_ImplicitInitialization();
+    if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
+            == PR_FAILURE) {
+        return NULL;
+    }
+    return _PR_MD_OPEN_SEMAPHORE(osname, flags, mode, value);
+}
+
+PR_IMPLEMENT(PRStatus) PR_WaitSemaphore(PRSem *sem)
+{
+    return _PR_MD_WAIT_SEMAPHORE(sem);
+}
+
+PR_IMPLEMENT(PRStatus) PR_PostSemaphore(PRSem *sem)
+{
+    return _PR_MD_POST_SEMAPHORE(sem);
+}
+
+PR_IMPLEMENT(PRStatus) PR_CloseSemaphore(PRSem *sem)
+{
+    return _PR_MD_CLOSE_SEMAPHORE(sem);
+}
+
+PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name)
+{
+    char osname[PR_IPC_NAME_SIZE];
+
+    if (!_pr_initialized) _PR_ImplicitInitialization();
+    if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
+            == PR_FAILURE) {
+        return PR_FAILURE;
+    }
+    return _PR_MD_DELETE_SEMAPHORE(osname);
+}
+
+#endif /* _PR_PTHREADS */