Add even more of the source

This should be about everything needed to build so far?
2017-03-07 17:14:16 -08:00 · 2017-03-07 17:14:16 -08:00 · 849723c9cf
commit 849723c9cf
parent af3619d4fa
547 changed files with 149239 additions and 0 deletions
--- a/CommonUtilitiesLib/OSCond.h
+++ b/CommonUtilitiesLib/OSCond.h
@ -0,0 +1,129 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+/*
+    File:       OSCond.h
+
+    Contains:   A simple condition variable abstraction
+    
+    
+        
+
+*/
+
+#ifndef _OSCOND_H_
+#define _OSCOND_H_
+
+#ifndef __Win32__
+    #if __PTHREADS_MUTEXES__
+        #include <pthread.h>
+    #else
+        #include "mycondition.h"
+    #endif
+#endif
+
+#include "OSMutex.h"
+#include "MyAssert.h"
+
+class OSCond 
+{
+    public:
+
+        OSCond();
+        ~OSCond();
+        
+        inline void     Signal();
+        inline void     Wait(OSMutex* inMutex, SInt32 inTimeoutInMilSecs = 0);
+        inline void     Broadcast();
+
+    private:
+
+#ifdef __Win32__
+        HANDLE              fCondition;
+        UInt32              fWaitCount;
+#elif __PTHREADS_MUTEXES__
+        pthread_cond_t      fCondition;
+        void                TimedWait(OSMutex* inMutex, SInt32 inTimeoutInMilSecs);
+#else
+        mycondition_t       fCondition;
+#endif
+};
+
+inline void OSCond::Wait(OSMutex* inMutex, SInt32 inTimeoutInMilSecs)
+{ 
+#ifdef __Win32__
+    DWORD theTimeout = INFINITE;
+    if (inTimeoutInMilSecs > 0)
+        theTimeout = inTimeoutInMilSecs;
+    inMutex->Unlock();
+    fWaitCount++;
+    DWORD theErr = ::WaitForSingleObject(fCondition, theTimeout);
+    fWaitCount--;
+    Assert((theErr == WAIT_OBJECT_0) || (theErr == WAIT_TIMEOUT));
+    inMutex->Lock();
+#elif __PTHREADS_MUTEXES__
+    this->TimedWait(inMutex, inTimeoutInMilSecs);
+#else
+    Assert(fCondition != NULL);
+    mycondition_wait(fCondition, inMutex->fMutex, inTimeoutInMilSecs);
+#endif
+}
+
+inline void OSCond::Signal()
+{
+#ifdef __Win32__
+    BOOL theErr = ::SetEvent(fCondition);
+    Assert(theErr == TRUE);
+#elif __PTHREADS_MUTEXES__
+    pthread_cond_signal(&fCondition);
+#else
+    Assert(fCondition != NULL);
+    mycondition_signal(fCondition);
+#endif
+}
+
+inline void OSCond::Broadcast()
+{
+#ifdef __Win32__
+    //
+    // There doesn't seem like any more elegant way to
+    // implement Broadcast using events in Win32.
+    // This will work, it may generate spurious wakeups,
+    // but condition variables are allowed to generate
+    // spurious wakeups
+    UInt32 waitCount = fWaitCount;
+    for (UInt32 x = 0; x < waitCount; x++)
+    {
+        BOOL theErr = ::SetEvent(fCondition);
+        Assert(theErr == TRUE);
+    }
+#elif __PTHREADS_MUTEXES__
+    pthread_cond_broadcast(&fCondition);
+#else
+    Assert(fCondition != NULL);
+    mycondition_broadcast(fCondition);
+#endif
+}
+
+#endif //_OSCOND_H_