1 files changed, 52 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/windows/ntsem.c b/nsprpub/pr/src/md/windows/ntsem.c
new file mode 100644
index 0000000000..757bc839e2
--- /dev/null
+++ b/nsprpub/pr/src/md/windows/ntsem.c
@@ -0,0 +1,52 @@
+/* -*- 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/. */
+
+/*
+ * NT-specific semaphore handling code.
+ *
+ */
+
+
+#include "primpl.h"
+
+
+void
+_PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value)
+{
+    md->sem = CreateSemaphore(NULL, value, 0x7fffffff, NULL);
+}
+
+void
+_PR_MD_DESTROY_SEM(_MDSemaphore *md)
+{
+    CloseHandle(md->sem);
+}
+
+PRStatus
+_PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks)
+{
+    int rv;
+
+    rv = WaitForSingleObject(md->sem, PR_IntervalToMilliseconds(ticks));
+
+    if (rv == WAIT_OBJECT_0) {
+        return PR_SUCCESS;
+    }
+    else {
+        return PR_FAILURE;
+    }
+}
+
+PRStatus
+_PR_MD_WAIT_SEM(_MDSemaphore *md)
+{
+    return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT);
+}
+
+void
+_PR_MD_POST_SEM(_MDSemaphore *md)
+{
+    ReleaseSemaphore(md->sem, 1, NULL);
+}