diff options
Diffstat (limited to 'ipc/chromium/src/chrome/common/mach_message_source_mac.h')
-rw-r--r-- | ipc/chromium/src/chrome/common/mach_message_source_mac.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ipc/chromium/src/chrome/common/mach_message_source_mac.h b/ipc/chromium/src/chrome/common/mach_message_source_mac.h new file mode 100644 index 0000000000..92ce0a73d4 --- /dev/null +++ b/ipc/chromium/src/chrome/common/mach_message_source_mac.h @@ -0,0 +1,60 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2008 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ +#define CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ + +#include <CoreServices/CoreServices.h> + +#include "base/scoped_cftyperef.h" + +// Handles registering and cleaning up after a CFRunloopSource for a Mach port. +// Messages received on the port are piped through to a delegate. +// +// Example: +// class MyListener : public MachMessageSource::MachPortListener { +// public: +// void OnMachMessageReceived(void* mach_msg, size_t size) { +// printf("received message on Mach port\n"); +// } +// }; +// +// mach_port_t a_port = ...; +// MyListener listener; +// bool success = false; +// MachMessageSource message_source(port, listener, &success); +// +// if (!success) { +// exit(1); // Couldn't register mach runloop source. +// } +// +// CFRunLoopRun(); // Process messages on runloop... +class MachMessageSource { + public: + // Classes that want to listen on a Mach port can implement + // OnMachMessageReceived, |mach_msg| is a pointer to the raw message data and + // |size| is the buffer size; + class MachPortListener { + public: + virtual void OnMachMessageReceived(void* mach_msg, size_t size) = 0; + }; + + // |listener| is a week reference passed to CF, it needs to remain in + // existence till this object is destroeyd. + MachMessageSource(mach_port_t port, MachPortListener* listener, + bool* success); + ~MachMessageSource(); + + private: + // Called by CF when a new message arrives on the Mach port. + static void OnReceiveMachMessage(CFMachPortRef port, void* msg, CFIndex size, + void* closure); + + scoped_cftyperef<CFRunLoopSourceRef> machport_runloop_ref_; + DISALLOW_COPY_AND_ASSIGN(MachMessageSource); +}; + +#endif // CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ |