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comparison: ipc/chromium/src/chrome/common/mach_message_source_mac.h
ipc/chromium/src/chrome/common/mach_message_source_mac.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:723f4f12f0f1 |
|---|---|
| 1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ | |
| 6 #define CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ | |
| 7 | |
| 8 #include <CoreServices/CoreServices.h> | |
| 9 | |
| 10 #include "base/scoped_cftyperef.h" | |
| 11 | |
| 12 // Handles registering and cleaning up after a CFRunloopSource for a Mach port. | |
| 13 // Messages received on the port are piped through to a delegate. | |
| 14 // | |
| 15 // Example: | |
| 16 // class MyListener : public MachMessageSource::MachPortListener { | |
| 17 // public: | |
| 18 // void OnMachMessageReceived(void* mach_msg, size_t size) { | |
| 19 // printf("received message on Mach port\n"); | |
| 20 // } | |
| 21 // }; | |
| 22 // | |
| 23 // mach_port_t a_port = ...; | |
| 24 // MyListener listener; | |
| 25 // bool success = false; | |
| 26 // MachMessageSource message_source(port, listener, &success); | |
| 27 // | |
| 28 // if (!success) { | |
| 29 // exit(1); // Couldn't register mach runloop source. | |
| 30 // } | |
| 31 // | |
| 32 // CFRunLoopRun(); // Process messages on runloop... | |
| 33 class MachMessageSource { | |
| 34 public: | |
| 35 // Classes that want to listen on a Mach port can implement | |
| 36 // OnMachMessageReceived, |mach_msg| is a pointer to the raw message data and | |
| 37 // |size| is the buffer size; | |
| 38 class MachPortListener { | |
| 39 public: | |
| 40 virtual void OnMachMessageReceived(void* mach_msg, size_t size) = 0; | |
| 41 }; | |
| 42 | |
| 43 // |listener| is a week reference passed to CF, it needs to remain in | |
| 44 // existence till this object is destroeyd. | |
| 45 MachMessageSource(mach_port_t port, | |
| 46 MachPortListener* listener, | |
| 47 bool* success); | |
| 48 ~MachMessageSource(); | |
| 49 | |
| 50 private: | |
| 51 // Called by CF when a new message arrives on the Mach port. | |
| 52 static void OnReceiveMachMessage(CFMachPortRef port, void* msg, CFIndex size, | |
| 53 void* closure); | |
| 54 | |
| 55 scoped_cftyperef<CFRunLoopSourceRef> machport_runloop_ref_; | |
| 56 DISALLOW_COPY_AND_ASSIGN(MachMessageSource); | |
| 57 }; | |
| 58 | |
| 59 #endif // CHROME_COMMON_MACH_MESSAGE_SOURCE_MAC_H_ |
