OSX/libsecurity_transform/lib/SingleShotSource.cpp

   1
   2 #include "SingleShotSource.h"
   3 #include "Utilities.h"
   4 #include <string>
   5
   6 using namespace std;
   7
   8 CFStringRef gSingleShotSourceName = CFSTR("Single Shot Source");
   9
  10 SingleShotSource::SingleShotSource(CFTypeRef value, Transform* t, CFStringRef name) :
  11         Source(gSingleShotSourceName, t, name)
  12 {
  13         SetValue(value);
  14 }
  15
  16 void SingleShotSource::DoActivate()
  17 {
  18         // Make sure our destination doesn't vanish while we are sending it data (or the final NULL)
  19         CFRetainSafe(mDestination->GetCFObject());
  20
  21         // take our value and send it on its way
  22         mDestination->SetAttribute(mDestinationName, GetValue());
  23
  24         // send an end of stream
  25         mDestination->SetAttribute(mDestinationName, NULL);
  26
  27         CFReleaseSafe(mDestination->GetCFObject());
  28 }
  29
  30
  31
  32 Boolean SingleShotSource::Equal(const CoreFoundationObject* obj)
  33 {
  34         if (Source::Equal(obj))
  35         {
  36                 const SingleShotSource* sss = (const SingleShotSource*) obj;
  37                 return CFEqual(GetValue(), sss->GetValue());
  38         }
  39
  40         return false;
  41 }
  42
  43
  44
  45 CFTypeRef SingleShotSource::Make(CFTypeRef value, Transform* t, CFStringRef name)
  46 {
  47         return CoreFoundationHolder::MakeHolder(gInternalCFObjectName, new SingleShotSource(value, t, name));
  48 }
  49
  50
  51
  52 std::string SingleShotSource::DebugDescription()
  53 {
  54         string result = Source::DebugDescription() + ": SingleShotSource ";
  55
  56         char buffer[256];
  57         snprintf(buffer, sizeof(buffer), "(value = %p)", GetValue());
  58
  59         result += buffer;
  60
  61         return result;
  62 }