CACFMessagePort.cpp

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//=============================================================================
//  Includes
//=============================================================================

#include "CACFMessagePort.h"
#include "CADebugMacros.h"
#include "CAException.h"

//=============================================================================
//  CACFLocalMessagePort
//=============================================================================

CACFLocalMessagePort::CACFLocalMessagePort(CFStringRef inName, CFMessagePortCallBack inPortCallBack, CFMessagePortInvalidationCallBack inInvalidationCallBack, void* inUserData)
:
    mMessagePort(NULL),
    mRunLoopSource(NULL)
{
    //  create the CFMessagePort
    CFMessagePortContext theContext = { 0, inUserData, NULL, NULL, NULL };
    mMessagePort = CFMessagePortCreateLocal(NULL, inName, inPortCallBack, &theContext, NULL);
    if(mMessagePort != NULL)
    {
        //  add the invalidation callback, if any
        if(inInvalidationCallBack != NULL)
        {
            CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack);
        }
    
        //  get the run loop source
        mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0);
    }
}

CACFLocalMessagePort::~CACFLocalMessagePort()
{
    if(mMessagePort != NULL)
    {
        CFMessagePortInvalidate(mMessagePort);
        CFRelease(mMessagePort);
    }
    
    if(mRunLoopSource != NULL)
    {
        CFRelease(mRunLoopSource);
    }
}

//=============================================================================
//  CACFRemoteMessagePort
//=============================================================================

CACFRemoteMessagePort::CACFRemoteMessagePort(CFStringRef inName, CFMessagePortInvalidationCallBack inInvalidationCallBack)
:
    mMessagePort(NULL),
    mRunLoopSource(NULL)
{
    //  create the CFMessagePort
    mMessagePort = CFMessagePortCreateRemote(NULL, inName);
    if(mMessagePort != NULL)
    {
        //  failure to create a remote port does not need to throw an exception
        //  because it isn't really an error since the port in question may not
        //  exist and this fact requires a more complex response than an excpeption
        //  provides for.
        
        //  add the invalidation callback, if any
        if(inInvalidationCallBack != NULL)
        {
            CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack);
        }
    
        //  get the run loop source
        mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0);
    }
}

CACFRemoteMessagePort::~CACFRemoteMessagePort()
{
    if(mMessagePort != NULL)
    {
        //CFMessagePortInvalidate(mMessagePort);
        CFRelease(mMessagePort);
    }
    
    if(mRunLoopSource != NULL)
    {
        CFRelease(mRunLoopSource);
    }
}