1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/chrome/common/mach_message_source_mac.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,59 @@
1.4 +// Copyright (c) 2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_
1.9 +#define CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_
1.10 +
1.11 +#include <CoreServices/CoreServices.h>
1.12 +
1.13 +#include "base/scoped_cftyperef.h"
1.14 +
1.15 +// Handles registering and cleaning up after a CFRunloopSource for a Mach port.
1.16 +// Messages received on the port are piped through to a delegate.
1.17 +//
1.18 +// Example:
1.19 +// class MyListener : public MachMessageSource::MachPortListener {
1.20 +// public:
1.21 +// void OnMachMessageReceived(void* mach_msg, size_t size) {
1.22 +// printf("received message on Mach port\n");
1.23 +// }
1.24 +// };
1.25 +//
1.26 +// mach_port_t a_port = ...;
1.27 +// MyListener listener;
1.28 +// bool success = false;
1.29 +// MachMessageSource message_source(port, listener, &success);
1.30 +//
1.31 +// if (!success) {
1.32 +// exit(1); // Couldn't register mach runloop source.
1.33 +// }
1.34 +//
1.35 +// CFRunLoopRun(); // Process messages on runloop...
1.36 +class MachMessageSource {
1.37 + public:
1.38 + // Classes that want to listen on a Mach port can implement
1.39 + // OnMachMessageReceived, |mach_msg| is a pointer to the raw message data and
1.40 + // |size| is the buffer size;
1.41 + class MachPortListener {
1.42 + public:
1.43 + virtual void OnMachMessageReceived(void* mach_msg, size_t size) = 0;
1.44 + };
1.45 +
1.46 + // |listener| is a week reference passed to CF, it needs to remain in
1.47 + // existence till this object is destroeyd.
1.48 + MachMessageSource(mach_port_t port,
1.49 + MachPortListener* listener,
1.50 + bool* success);
1.51 + ~MachMessageSource();
1.52 +
1.53 + private:
1.54 + // Called by CF when a new message arrives on the Mach port.
1.55 + static void OnReceiveMachMessage(CFMachPortRef port, void* msg, CFIndex size,
1.56 + void* closure);
1.57 +
1.58 + scoped_cftyperef<CFRunLoopSourceRef> machport_runloop_ref_;
1.59 + DISALLOW_COPY_AND_ASSIGN(MachMessageSource);
1.60 +};
1.61 +
1.62 +#endif // CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_
