Initialer Commit

CPP/Windows/Synchronization.h

@@ -0,0 +1,164 @@
+// Windows/Synchronization.h
+
+#ifndef __WINDOWS_SYNCHRONIZATION_H
+#define __WINDOWS_SYNCHRONIZATION_H
+
+#include "../../C/Threads.h"
+
+#include "Defs.h"
+
+#ifdef _WIN32
+#include "Handle.h"
+#endif
+
+namespace NWindows {
+namespace NSynchronization {
+
+class CBaseEvent
+{
+protected:
+  ::CEvent _object;
+public:
+  bool IsCreated() { return Event_IsCreated(&_object) != 0; }
+  operator HANDLE() { return _object; }
+  CBaseEvent() { Event_Construct(&_object); }
+  ~CBaseEvent() { Close(); }
+  WRes Close() { return Event_Close(&_object); }
+  #ifdef _WIN32
+  WRes Create(bool manualReset, bool initiallyOwn, LPCTSTR name = NULL, LPSECURITY_ATTRIBUTES sa = NULL)
+  {
+    _object = ::CreateEvent(sa, BoolToBOOL(manualReset), BoolToBOOL(initiallyOwn), name);
+    if (name == NULL && _object != 0)
+      return 0;
+    return ::GetLastError();
+  }
+  WRes Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
+  {
+    _object = ::OpenEvent(desiredAccess, BoolToBOOL(inheritHandle), name);
+    if (_object != 0)
+      return 0;
+    return ::GetLastError();
+  }
+  #endif
+
+  WRes Set() { return Event_Set(&_object); }
+  // bool Pulse() { return BOOLToBool(::PulseEvent(_handle)); }
+  WRes Reset() { return Event_Reset(&_object); }
+  WRes Lock() { return Event_Wait(&_object); }
+};
+
+class CManualResetEvent: public CBaseEvent
+{
+public:
+  WRes Create(bool initiallyOwn = false)
+  {
+    return ManualResetEvent_Create(&_object, initiallyOwn ? 1: 0);
+  }
+  WRes CreateIfNotCreated()
+  {
+    if (IsCreated())
+      return 0;
+    return ManualResetEvent_CreateNotSignaled(&_object);
+  }
+  #ifdef _WIN32
+  WRes CreateWithName(bool initiallyOwn, LPCTSTR name)
+  {
+    return CBaseEvent::Create(true, initiallyOwn, name);
+  }
+  #endif
+};
+
+class CAutoResetEvent: public CBaseEvent
+{
+public:
+  WRes Create()
+  {
+    return AutoResetEvent_CreateNotSignaled(&_object);
+  }
+  WRes CreateIfNotCreated()
+  {
+    if (IsCreated())
+      return 0;
+    return AutoResetEvent_CreateNotSignaled(&_object);
+  }
+};
+
+#ifdef _WIN32
+class CObject: public CHandle
+{
+public:
+  WRes Lock(DWORD timeoutInterval = INFINITE)
+    { return (::WaitForSingleObject(_handle, timeoutInterval) == WAIT_OBJECT_0 ? 0 : ::GetLastError()); }
+};
+class CMutex: public CObject
+{
+public:
+  WRes Create(bool initiallyOwn, LPCTSTR name = NULL, LPSECURITY_ATTRIBUTES sa = NULL)
+  {
+    _handle = ::CreateMutex(sa, BoolToBOOL(initiallyOwn), name);
+    if (name == NULL && _handle != 0)
+      return 0;
+    return ::GetLastError();
+  }
+  #ifndef UNDER_CE
+  WRes Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
+  {
+    _handle = ::OpenMutex(desiredAccess, BoolToBOOL(inheritHandle), name);
+    if (_handle != 0)
+      return 0;
+    return ::GetLastError();
+  }
+  #endif
+  WRes Release()
+  {
+    return ::ReleaseMutex(_handle) ? 0 : ::GetLastError();
+  }
+};
+class CMutexLock
+{
+  CMutex *_object;
+public:
+  CMutexLock(CMutex &object): _object(&object) { _object->Lock(); }
+  ~CMutexLock() { _object->Release(); }
+};
+#endif
+
+class CSemaphore
+{
+  ::CSemaphore _object;
+public:
+  CSemaphore() { Semaphore_Construct(&_object); }
+  ~CSemaphore() { Close(); }
+  WRes Close() {  return Semaphore_Close(&_object); }
+  operator HANDLE() { return _object; }
+  WRes Create(UInt32 initiallyCount, UInt32 maxCount)
+  {
+    return Semaphore_Create(&_object, initiallyCount, maxCount);
+  }
+  WRes Release() { return Semaphore_Release1(&_object); }
+  WRes Release(UInt32 releaseCount) { return Semaphore_ReleaseN(&_object, releaseCount); }
+  WRes Lock() { return Semaphore_Wait(&_object); }
+};
+
+class CCriticalSection
+{
+  ::CCriticalSection _object;
+public:
+  CCriticalSection() { CriticalSection_Init(&_object); }
+  ~CCriticalSection() { CriticalSection_Delete(&_object); }
+  void Enter() { CriticalSection_Enter(&_object); }
+  void Leave() { CriticalSection_Leave(&_object); }
+};
+
+class CCriticalSectionLock
+{
+  CCriticalSection *_object;
+  void Unlock()  { _object->Leave(); }
+public:
+  CCriticalSectionLock(CCriticalSection &object): _object(&object) {_object->Enter(); }
+  ~CCriticalSectionLock() { Unlock(); }
+};
+
+}}
+
+#endif