updated copyright messages for 2013

[deb_libcec.git] / src / lib / platform / windows / os-threads.h

diff --git a/src/lib/platform/windows/os-threads.h b/src/lib/platform/windows/os-threads.h
index 52bd4bc11ab946b3018bd522b01b64b0ace7cd9b..e39b6011b277ce1359fb522ad0cd735d25b1be88 100644 (file)
--- a/src/lib/platform/windows/os-threads.h
+++ b/src/lib/platform/windows/os-threads.h
@@ -2,7 +2,7 @@
 /*
  * This file is part of the libCEC(R) library.
  *
- * libCEC(R) is Copyright (C) 2011-2012 Pulse-Eight Limited.  All rights reserved.
+ * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited.  All rights reserved.
  * libCEC(R) is an original work, containing original code.
  *
  * libCEC(R) is a trademark of Pulse-Eight Limited.
@@ -31,106 +31,35 @@
  *     http://www.pulse-eight.net/
  */
 
+#include <stdint.h>
+
 namespace PLATFORM
 {
   #define thread_t                                 HANDLE
+  #define INVALID_THREAD_VALUE                     NULL
   #define ThreadsWait(thread, retVal)              (::WaitForSingleObject(thread, INFINITE) < 0)
   #define ThreadsCreate(thread, func, arg)         ((thread = ::CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, arg, 0, NULL)) == NULL ? false : true)
 
   typedef CRITICAL_SECTION* mutex_t;
   #define MutexCreate(mutex)                       ::InitializeCriticalSection(mutex = new CRITICAL_SECTION)
   #define MutexDelete(mutex)                       ::DeleteCriticalSection(mutex); delete mutex
-  #define MutexLock(mutex)                         ::EnterCriticalSection(mutex)
+  inline bool MutexLock(mutex_t mutex)             {::EnterCriticalSection(mutex); return true; }
   #define MutexTryLock(mutex)                      (::TryEnterCriticalSection(mutex) != 0)
   #define MutexUnlock(mutex)                       ::LeaveCriticalSection(mutex)
 
   // windows vista+ conditions
   typedef VOID (WINAPI *ConditionArg)     (CONDITION_VARIABLE*);
   typedef BOOL (WINAPI *ConditionMutexArg)(CONDITION_VARIABLE*, CRITICAL_SECTION*, DWORD);
-  static ConditionArg                     g_InitializeConditionVariable;
-  static ConditionArg                     g_WakeConditionVariable;
-  static ConditionArg                     g_WakeAllConditionVariable;
-  static ConditionMutexArg                g_SleepConditionVariableCS;
-
-  // check whether vista+ conditions are available at runtime  
-  static bool CheckVistaConditionFunctions(void)
-  {
-    static int iHasVistaConditionFunctions(-1);
-    if (iHasVistaConditionFunctions == -1)
-    {
-      HMODULE handle = GetModuleHandle("Kernel32");
-      if (handle == NULL)
-      {
-        iHasVistaConditionFunctions = 0;
-      }
-      else
-      {
-        g_InitializeConditionVariable = (ConditionArg)     GetProcAddress(handle,"InitializeConditionVariable");
-        g_WakeConditionVariable       = (ConditionArg)     GetProcAddress(handle,"WakeConditionVariable");
-        g_WakeAllConditionVariable    = (ConditionArg)     GetProcAddress(handle,"WakeAllConditionVariable");
-        g_SleepConditionVariableCS    = (ConditionMutexArg)GetProcAddress(handle,"SleepConditionVariableCS");
-
-        // 1 when everything is resolved, 0 otherwise
-        iHasVistaConditionFunctions = g_InitializeConditionVariable &&
-                                      g_WakeConditionVariable &&
-                                      g_WakeAllConditionVariable &&
-                                      g_SleepConditionVariableCS ? 1 : 0;
-      }
-    }
-    return iHasVistaConditionFunctions == 1;
-  }
 
   class CConditionImpl
   {
   public:
-    CConditionImpl(void)
-    {
-      m_bOnVista = CheckVistaConditionFunctions();
-      if (m_bOnVista)
-        (*g_InitializeConditionVariable)(m_conditionVista = new CONDITION_VARIABLE);
-      else
-        m_conditionPreVista = ::CreateEvent(NULL, TRUE, FALSE, NULL);
-    }
-
-    virtual ~CConditionImpl(void)
-    {
-      if (m_bOnVista)
-        delete m_conditionVista;
-      else
-        ::CloseHandle(m_conditionPreVista);
-    }
-
-    void Signal(void)
-    {
-      if (m_bOnVista)
-        (*g_WakeConditionVariable)(m_conditionVista);
-      else
-        ::SetEvent(m_conditionPreVista);
-    }
-
-    void Broadcast(void)
-    {
-      if (m_bOnVista)
-        (*g_WakeAllConditionVariable)(m_conditionVista);
-      else
-        ::SetEvent(m_conditionPreVista);
-    }
-
-    bool Wait(mutex_t &mutex, uint32_t iTimeoutMs)
-    {
-      if (m_bOnVista)
-      {
-        return ((*g_SleepConditionVariableCS)(m_conditionVista, mutex, iTimeoutMs <= 0 ? INFINITE : iTimeoutMs) ? true : false);
-      }
-      else
-      {
-        ::ResetEvent(m_conditionPreVista);
-        MutexUnlock(mutex);
-        DWORD iWaitReturn = ::WaitForSingleObject(m_conditionPreVista, iTimeoutMs <= 0 ? 1000 : iTimeoutMs);
-        MutexLock(mutex);
-        return (iWaitReturn == 0);
-      }
-    }
+    CConditionImpl(void);
+    virtual ~CConditionImpl(void);
+    void Signal(void);
+    void Broadcast(void);
+    bool Wait(mutex_t &mutex);
+    bool Wait(mutex_t &mutex, uint32_t iTimeoutMs);
 
     bool                m_bOnVista;
     CONDITION_VARIABLE *m_conditionVista;