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+/* Copyright © 2007 Apple Inc. All Rights Reserved.
+
+ Disclaimer: IMPORTANT: This Apple software is supplied to you by
+ Apple Inc. ("Apple") in consideration of your agreement to the
+ following terms, and your use, installation, modification or
+ redistribution of this Apple software constitutes acceptance of these
+ terms. If you do not agree with these terms, please do not use,
+ install, modify or redistribute this Apple software.
+
+ In consideration of your agreement to abide by the following terms, and
+ subject to these terms, Apple grants you a personal, non-exclusive
+ license, under Apple's copyrights in this original Apple software (the
+ "Apple Software"), to use, reproduce, modify and redistribute the Apple
+ Software, with or without modifications, in source and/or binary forms;
+ provided that if you redistribute the Apple Software in its entirety and
+ without modifications, you must retain this notice and the following
+ text and disclaimers in all such redistributions of the Apple Software.
+ Neither the name, trademarks, service marks or logos of Apple Inc.
+ may be used to endorse or promote products derived from the Apple
+ Software without specific prior written permission from Apple. Except
+ as expressly stated in this notice, no other rights or licenses, express
+ or implied, are granted by Apple herein, including but not limited to
+ any patent rights that may be infringed by your derivative works or by
+ other works in which the Apple Software may be incorporated.
+
+ The Apple Software is provided by Apple on an "AS IS" basis. APPLE
+ MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+ THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+ OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+ MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+ STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+*/
+//==================================================================================================
+// Includes
+//==================================================================================================
+
+#include "CACFMachPort.h"
+#include "CAException.h"
+#include "CADebugMacros.h"
+
+//==================================================================================================
+// CACFMachPort
+//==================================================================================================
+
+// This constructor is the short form. The CFMachPort will own the send and receive rights.
+CACFMachPort::CACFMachPort(CFMachPortCallBack inCallBack, void* inUserData)
+:
+ mMachPort(NULL),
+ mRunLoopSource(NULL),
+ mOwnsPort(true)
+{
+ CFMachPortContext theContext = { 1, inUserData, NULL, NULL, NULL };
+ mMachPort = CFMachPortCreate(NULL, inCallBack, &theContext, NULL);
+ ThrowIfNULL(mMachPort, CAException('what'), "CACFMachPort::CACFMachPort(s): couldn't create the CFMachPort");
+
+ mRunLoopSource = CFMachPortCreateRunLoopSource(NULL, mMachPort, 0);
+ if(mRunLoopSource == NULL)
+ {
+ CFMachPortInvalidate(mMachPort);
+ CFRelease(mMachPort);
+ mMachPort = NULL;
+ DebugMessage("CACFMachPort::CACFMachPort(s): couldn't create the CFRunLoopSource");
+ throw CAException('what');
+ }
+}
+
+// This constructor is the general form:
+// - If inMachPort is MACH_PORT_NULL, the CFMachPort will allocate the port and own the send and
+// receive rights. Otherwise, the caller owns the rights and is resposible for cleaning them
+// up.
+// - If inCallBack is NULL, then received messages will just get swallowed by the CFMachPort.
+// This is useful if you are only using the CFMachPort to track port death (aka invalidation).
+// - If inInvalidationCallBack is non-NULL, then it will be installed as the invalidation
+// callback on the CFMachPort.
+CACFMachPort::CACFMachPort(mach_port_t inMachPort, CFMachPortCallBack inCallBack, CFMachPortInvalidationCallBack inInvalidationCallBack, void* inUserData)
+:
+ mMachPort(NULL),
+ mRunLoopSource(NULL),
+ mOwnsPort(false)
+{
+ CFMachPortContext theContext = { 1, inUserData, NULL, NULL, NULL };
+
+ if(inMachPort == MACH_PORT_NULL)
+ {
+ mMachPort = CFMachPortCreate(NULL, inCallBack, &theContext, NULL);
+ ThrowIfNULL(mMachPort, CAException('what'), "CACFMachPort::CACFMachPort: couldn't create the CFMachPort");
+ mOwnsPort = true;
+ }
+ else
+ {
+ mMachPort = CFMachPortCreateWithPort(NULL, inMachPort, inCallBack, &theContext, NULL);
+ ThrowIfNULL(mMachPort, CAException('what'), "CACFMachPort::CACFMachPort: couldn't create the CFMachPort with a port");
+ mOwnsPort = false;
+ }
+
+ mRunLoopSource = CFMachPortCreateRunLoopSource(NULL, mMachPort, 0);
+ if(mRunLoopSource == NULL)
+ {
+ if(mOwnsPort)
+ {
+ CFMachPortInvalidate(mMachPort);
+ }
+ CFRelease(mMachPort);
+ mMachPort = NULL;
+ DebugMessage("CACFMachPort::CACFMachPort: couldn't create the CFRunLoopSource");
+ throw CAException('what');
+ }
+
+ if(inInvalidationCallBack != NULL)
+ {
+ CFMachPortSetInvalidationCallBack(mMachPort, inInvalidationCallBack);
+ }
+}
+
+CACFMachPort::~CACFMachPort()
+{
+ if(mRunLoopSource != NULL)
+ {
+ CFRelease(mRunLoopSource);
+ }
+
+ if(mMachPort != NULL)
+ {
+ if(mOwnsPort)
+ {
+ CFMachPortInvalidate(mMachPort);
+ }
+ CFRelease(mMachPort);
+ }
+}