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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// 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.
#include "chrome/common/mach_message_source_mac.h"
#include "base/logging.h"
MachMessageSource::MachMessageSource(mach_port_t port,
MachPortListener* msg_listener,
bool* success) {
DCHECK(msg_listener);
DCHECK(success);
DCHECK(port != MACH_PORT_NULL);
CFMachPortContext port_context = {0};
port_context.info = msg_listener;
scoped_cftyperef<CFMachPortRef> cf_mach_port_ref(
CFMachPortCreateWithPort(kCFAllocatorDefault,
port,
MachMessageSource::OnReceiveMachMessage,
&port_context,
NULL));
if (cf_mach_port_ref.get() == NULL) {
CHROMIUM_LOG(WARNING) << "CFMachPortCreate failed";
*success = false;
return;
}
// Create a RL source.
machport_runloop_ref_.reset(
CFMachPortCreateRunLoopSource(kCFAllocatorDefault,
cf_mach_port_ref.get(),
0));
if (machport_runloop_ref_.get() == NULL) {
CHROMIUM_LOG(WARNING) << "CFMachPortCreateRunLoopSource failed";
*success = false;
return;
}
CFRunLoopAddSource(CFRunLoopGetCurrent(),
machport_runloop_ref_.get(),
kCFRunLoopCommonModes);
*success = true;
}
MachMessageSource::~MachMessageSource() {
CFRunLoopRemoveSource(CFRunLoopGetCurrent(),
machport_runloop_ref_.get(),
kCFRunLoopCommonModes);
}
// static
void MachMessageSource::OnReceiveMachMessage(CFMachPortRef port, void* msg,
CFIndex size, void* closure) {
MachPortListener *msg_listener = static_cast<MachPortListener*>(closure);
size_t msg_size = (size < 0) ? 0 : static_cast<size_t>(size);
DCHECK(msg && msg_size > 0); // this should never happen!
if (msg_listener && msg && msg_size > 0) {
msg_listener->OnMachMessageReceived(msg, msg_size);
}
}
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