OSX/libsecurity_transform/lib/Source.cpp

   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