1  #include "Source.h"
 2  #include "Utilities.h"
 3  #include "c++utils.h"
 4  
 5  #include <string>
 6  
 7  using namespace std;
 8  
 9  Source::Source(CFStringRef sourceObjectName, Transform* destination, CFStringRef destinationName) :
10  	CoreFoundationObject(sourceObjectName),
11  	mDestination(destination),
12  	mDestinationName(destinationName)
13  {
14      CFStringRef queueName = CFStringCreateWithFormat(NULL, NULL, CFSTR("source:%@"), sourceObjectName);
15      char *queueName_cstr = utf8(queueName);
16  	
17  	mLastValue = NULL;
18  	mDispatchQueue = MyDispatchQueueCreate(queueName_cstr, NULL);
19      free((void*)queueName_cstr);
20      CFReleaseNull(queueName);
21  }
22  
23  
24  
25  Source::~Source()
26  {
27  	if (mLastValue != NULL)
28  	{
29  		CFReleaseNull(mLastValue);
30  	}
31  	
32  	dispatch_release(mDispatchQueue);
33  }
34  
35  
36  
37  void Source::Activate()
38  {
39  	dispatch_async(mDispatchQueue, ^{DoActivate();});
40  }
41  
42  
43  
44  void Source::SetValue(CFTypeRef value)
45  {
46  	if (value == mLastValue)
47  	{
48  		return;
49  	}
50  	
51  	// is there an existing value?  If so, release it
52      CFReleaseNull(mLastValue);
53  
54      mLastValue = CFRetainSafe(value);
55  }
56  
57  
58  
59  Boolean Source::Equal(const CoreFoundationObject* obj)
60  {
61  	if (CoreFoundationObject::Equal(obj))
62  	{
63  		const Source* objSource = (const Source*) obj;
64  		if (objSource->mDestination == mDestination &&
65  			CFStringCompare(objSource->mDestinationName, mDestinationName, 0) == kCFCompareEqualTo)
66  		{
67  			return true;
68  		}
69  	}
70  	
71  	return false;
72  }
73  
74  
75  
76  std::string Source::DebugDescription()
77  {
78  	string result = CoreFoundationObject::DebugDescription() + ": Source ";
79  	
80  	char buffer[256];
81  	sprintf(buffer, "(Destination = %p, name = %s)", mDestination, StringFromCFString(mDestinationName).c_str());
82  	
83  	result += buffer;
84  	
85  	return result;
86  }
87