From cb220c27929600ff7a1980bbe421290e39b2eddc Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sat, 26 Jan 2013 08:42:18 +0100
Subject: Background loader for audio files.

---
 src/semaphore.cc | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 src/semaphore.cc

(limited to 'src/semaphore.cc')

diff --git a/src/semaphore.cc b/src/semaphore.cc
new file mode 100644
index 0000000..d43835a
--- /dev/null
+++ b/src/semaphore.cc
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            semaphore.cc
+ *
+ *  Sat Oct  8 17:44:13 CEST 2005
+ *  Copyright  2005 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Pracro.
+ *
+ *  Pracro is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Pracro is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Pracro; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "semaphore.h"
+
+#include <hugin.hpp>
+
+#ifdef WIN32
+#include <windows.h>
+#else
+#include </usr/include/semaphore.h>
+#endif
+
+struct semaphore_private_t {
+#ifdef WIN32
+  HANDLE semaphore; 
+#else
+  sem_t semaphore;
+#endif
+};
+
+Semaphore::Semaphore()
+{
+  DEBUG(semaphore, "Create\n");
+
+  prv = new struct semaphore_private_t();
+
+#ifdef WIN32
+  prv->semaphore = CreateSemaphore(NULL,  // default security attributes
+                                   0, // initial count
+                                   100000, // maximum count
+                                   NULL); // unnamed semaphore
+#else
+  sem_init(&prv->semaphore, 0, 0);
+#endif
+}
+
+Semaphore::~Semaphore()
+{
+  DEBUG(semaphore, "Delete\n");
+
+#ifdef WIN32
+  CloseHandle(prv->semaphore);
+#else
+  sem_destroy(&prv->semaphore);
+#endif
+
+  if(prv) delete prv;
+}
+
+void Semaphore::post()
+{
+  DEBUG(semaphore, "Post\n");
+
+#ifdef WIN32
+  ReleaseSemaphore(prv->semaphore, 1, NULL);
+#else
+  sem_post(&prv->semaphore);
+#endif
+}
+
+void Semaphore::wait()
+{
+  DEBUG(semaphore, "Wait\n");
+
+#ifdef WIN32
+  WaitForSingleObject(prv->semaphore, INFINITE);
+#else
+  sem_wait(&prv->semaphore);
+#endif
+}
+
+#ifdef TEST_SEMAPHORE
+//deps:
+//cflags: -I.. $(PTHREAD_CFLAGS)
+//libs: $(PTHREAD_LIBS)
+#include <test.h>
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+TEST_TRUE(false, "No tests yet!");
+
+TEST_END;
+
+#endif/*TEST_SEMAPHORE*/
-- 
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