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+/* -*- 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
+// Make sure we don't include /this/ file...
+#include <../include/semaphore.h>
+#endif
+
+struct semaphore_private_t {
+#ifdef WIN32
+ HANDLE semaphore;
+#else
+ sem_t semaphore;
+#endif
+};
+
+Semaphore::Semaphore(const char *name)
+{
+ this->name = name;
+ DEBUG(semaphore, "Create [%s]\n", name);
+
+ prv = new struct semaphore_private_t();
+
+#ifdef WIN32
+ prv->semaphore = CreateSemaphore(NULL, // default security attributes
+ 0, // initial count
+ 2147483647, // maximum count (Max LONG)
+ NULL); // unnamed semaphore
+#else
+ sem_init(&prv->semaphore, 0, 0);
+#endif
+}
+
+Semaphore::~Semaphore()
+{
+ DEBUG(semaphore, "Delete [%s]\n", name);
+
+#ifdef WIN32
+ CloseHandle(prv->semaphore);
+#else
+ sem_destroy(&prv->semaphore);
+#endif
+
+ if(prv) delete prv;
+}
+
+void Semaphore::post()
+{
+ DEBUG(semaphore, "Post [%s]\n", name);
+
+#ifdef WIN32
+ ReleaseSemaphore(prv->semaphore, 1, NULL);
+#else
+ sem_post(&prv->semaphore);
+#endif
+}
+
+void Semaphore::wait()
+{
+ DEBUG(semaphore, "Wait [%s]\n", name);
+
+#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*/