1 files changed, 188 insertions, 0 deletions
diff --git a/qpid/cpp/include/qpid/sys/windows/Mutex.h b/qpid/cpp/include/qpid/sys/windows/Mutex.h
new file mode 100755
index 0000000000..5dcc69e836
--- /dev/null
+++ b/qpid/cpp/include/qpid/sys/windows/Mutex.h
@@ -0,0 +1,188 @@
+#ifndef _sys_windows_Mutex_h
+#define _sys_windows_Mutex_h
+
+/*
+ *
+ * Copyright (c) 2008 The Apache Software Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "qpid/sys/windows/check.h"
+
+#include <boost/version.hpp>
+#if (BOOST_VERSION < 103500)
+#error The Windows port requires Boost version 1.35.0 or later
+#endif
+
+#include <boost/noncopyable.hpp>
+#include <boost/thread/recursive_mutex.hpp>
+#include <boost/thread/shared_mutex.hpp>
+#include <boost/thread/thread_time.hpp>
+#include <boost/thread/tss.hpp>
+
+namespace qpid {
+namespace sys {
+
+class Condition;
+
+/**
+ * Mutex lock.
+ */
+class Mutex : private boost::noncopyable {
+    friend class Condition;
+
+public:
+    typedef ::qpid::sys::ScopedLock<Mutex> ScopedLock;
+    typedef ::qpid::sys::ScopedUnlock<Mutex> ScopedUnlock;
+     
+    inline Mutex();
+    inline ~Mutex();
+    inline void lock();  
+    inline void unlock();
+    inline bool trylock();  
+
+
+protected:
+    boost::recursive_mutex mutex;
+};
+
+/**
+ * RW lock.
+ */
+class RWlock : private boost::noncopyable {
+    friend class Condition;
+
+public:
+    typedef ::qpid::sys::ScopedRlock<RWlock> ScopedRlock;
+    typedef ::qpid::sys::ScopedWlock<RWlock> ScopedWlock;
+    
+    inline RWlock();
+    inline ~RWlock();
+    inline void wlock();  // will write-lock
+    inline void rlock();  // will read-lock
+    inline void unlock();
+    inline void trywlock();  // will write-try
+    inline void tryrlock();  // will read-try
+
+protected:
+    boost::shared_mutex rwMutex;
+    boost::thread_specific_ptr<bool> haveWrite;
+
+    inline bool &write (void);
+};
+
+
+/**
+ * PODMutex is a POD, can be static-initialized with
+ * PODMutex m = QPID_PODMUTEX_INITIALIZER
+ */
+struct PODMutex 
+{
+    typedef ::qpid::sys::ScopedLock<PODMutex> ScopedLock;
+
+    inline void lock();  
+    inline void unlock();
+    inline bool trylock();  
+
+    // Must be public to be a POD:
+    boost::recursive_mutex mutex;
+};
+
+#define QPID_MUTEX_INITIALIZER 0
+
+void PODMutex::lock() {
+    mutex.lock();
+}
+
+void PODMutex::unlock() {
+    mutex.unlock();
+}
+
+bool PODMutex::trylock() {
+    return mutex.try_lock();
+}
+
+Mutex::Mutex() {
+}
+
+Mutex::~Mutex(){
+}
+
+void Mutex::lock() {
+    mutex.lock();
+}
+
+void Mutex::unlock() {
+    mutex.unlock();
+}
+
+bool Mutex::trylock() {
+    return mutex.try_lock();
+}
+
+
+RWlock::RWlock() {
+}
+
+RWlock::~RWlock(){
+}
+
+void RWlock::wlock() {
+    bool &writer = write();
+    rwMutex.lock();
+    writer = true;    // Remember this thread has write lock held.
+}
+
+void RWlock::rlock() {
+    bool &writer = write();
+    rwMutex.lock_shared();
+    writer = false;   // Remember this thread has shared lock held.
+}
+
+void RWlock::unlock() {
+    bool &writer = write();
+    if (writer)
+        rwMutex.unlock();
+    else
+        rwMutex.unlock_shared();
+}
+
+void RWlock::trywlock() {
+    bool &writer = write();
+    // shared_mutex::try_lock() seems to not be available... emulate it with
+    // a timed lock().
+    boost::system_time now = boost::get_system_time();
+    if (rwMutex.timed_lock(now))
+        writer = true;
+}
+
+void RWlock::tryrlock() {
+    bool &writer = write();
+    if (rwMutex.try_lock_shared())
+        writer = false;
+}
+
+bool & RWlock::write (void) {
+    // Accessing thread-specific and stack-local info, so no locks needed.
+    bool *writePtr = haveWrite.get();
+    if (writePtr == 0) {
+        writePtr = new bool(false);
+        haveWrite.reset(writePtr);
+    }
+    return *writePtr;
+}
+
+}}
+#endif  /*!_sys_windows_Mutex_h*/