initial checkin

Check in contents of upstream 1.4.2 tarball, exclude generated files.

1 files changed, 90 insertions, 0 deletions

diff --git a/src/threads/mutex.cpp b/src/threads/mutex.cpp
new file mode 100644
index 0000000..0ae2a99
--- /dev/null
+++ b/src/threads/mutex.cpp
@@ -0,0 +1,90 @@
+/*
+    Copyright (C) 2005-2009  Michel de Boer <michel@twinklephone.com>
+
+    This program 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.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <string>
+#include <iostream>
+#include "mutex.h"
+#include "thread.h"
+
+using namespace std;
+
+///////////////////////////
+// t_mutex
+///////////////////////////
+
+t_mutex::t_mutex() {
+	pthread_mutex_init(&mutex, NULL);
+}
+
+t_mutex::t_mutex(bool recursive) {
+	pthread_mutexattr_t attr;
+	pthread_mutexattr_init(&attr);
+
+
+	int ret = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
+	if (ret != 0) throw string(
+		"t_mutex::t_mutex failed to create a recursive mutex.");
+
+	pthread_mutex_init(&mutex, &attr);
+	pthread_mutexattr_destroy(&attr);
+}
+
+t_mutex::~t_mutex() {
+	pthread_mutex_destroy(&mutex);
+}
+
+void t_mutex::lock(void) {
+	int ret = pthread_mutex_lock(&mutex);
+	if (ret != 0) throw string("t_mutex::lock failed.");
+}
+
+int t_mutex::trylock(void) {
+	int ret = pthread_mutex_trylock(&mutex);
+	switch (ret) {
+	case 0:
+	case EBUSY:
+		return ret;
+	default:
+		throw string("t_mutex::trylock failed.");
+	}
+}
+
+void t_mutex::unlock(void) {
+	int ret = pthread_mutex_unlock(&mutex);
+	if (ret != 0) throw ("t_mutex::unlock failed.");
+}
+
+///////////////////////////
+// t_recursive_mutex
+///////////////////////////
+
+t_recursive_mutex::t_recursive_mutex() : t_mutex(true) {}
+
+t_recursive_mutex::~t_recursive_mutex() {}
+
+///////////////////////////
+// t_guard_mutex
+///////////////////////////
+
+t_mutex_guard::t_mutex_guard(t_mutex &mutex) : mutex_(mutex) {
+	mutex_.lock();
+}
+
+t_mutex_guard::~t_mutex_guard() {
+	mutex_.unlock();
+}