X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Fmutex.h;h=50a64e55aaa0a87a1a6d114960ed5cd3416e5527;hb=ae48dac6a368dbf68b1ec976254a5f896c5b737b;hp=99585103704d00d4bbde53edf3927975286f0898;hpb=7292f4413397b7f2e4689f7597f4b9e73435352e;p=libs%2Fcore.git

diff --git a/source/core/mutex.h b/source/core/mutex.h
index 9958510..50a64e5 100644
--- a/source/core/mutex.h
+++ b/source/core/mutex.h
@@ -1,18 +1,25 @@
-/*
-This file is part of libmspframework
+/* $Id$
+
+This file is part of libmspcore
 Copyright © 2006 Mikko Rasa, Mikkosoft Productions
 Distributed under the LGPL
 */
-#ifndef MSP_FRAMEWORK_MUTEX_H_
-#define MSP_FRAMEWORK_MUTEX_H_
 
-#include <msp/refcount.h>
+#ifndef MSP_CORE_MUTEX_H_
+#define MSP_CORE_MUTEX_H_
+
+#include "refptr.h"
 #include "types.h"
 
 namespace Msp {
 
 class Mutex
 {
+	friend class Semaphore;
+
+private:
+	MutexHandle mutex;
+
 public:
 #ifndef WIN32
 	Mutex()       { pthread_mutex_init(&mutex, 0); }
@@ -27,26 +34,45 @@ public:
 	int unlock()  { return !ReleaseMutex(mutex); }
 	~Mutex()      { CloseHandle(mutex); }
 #endif
-private:
-	MutexHandle mutex;
-
-	friend class Semaphore;
 };
 
+/**
+Locks the mutex for te lifetime of the object.
+*/
 class MutexLock
 {
-public:
-	MutexLock(Mutex &m): mutex(m) { mutex.lock(); }
-	~MutexLock()                  { mutex.unlock(); }
 private:
 	Mutex &mutex;
 
+public:
+	MutexLock(Mutex &m, bool l=true): mutex(m) { if(l) mutex.lock(); }
+	~MutexLock() { mutex.unlock(); }
+
+	int lock() { return mutex.lock(); }
+private:
 	MutexLock(const MutexLock &);
 	MutexLock &operator=(const MutexLock &);
 };
 
-
+/**
+Protects a pointer with a mutex.  As long as the MutexPtr (or a copy of it)
+exists, the mutex will stay locked.
+*/
 template<typename T>
+class MutexPtr
+{
+public:
+	MutexPtr(T *d, Mutex &m): mutex(new MutexLock(m)), data(d) { }
+
+	T &operator*() const { return *data; }
+	T *operator->() const { return data; }
+	void clear() { mutex=0; data=0; }
+private:
+	RefPtr<MutexLock> mutex;
+	T *data;
+};
+
+/*template<typename T>
 class MutexPtr: public RefCount
 {
 public:
@@ -69,7 +95,7 @@ protected:
 		}
 		return true;
 	}
-};
+};*/
 
 }