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// Copyright (c) 2011 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 "content/browser/mach_broker_mac.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/common/content_switches.h"
namespace content {
namespace {
const char kBootstrapName[] = "rohitfork";
}
// static
bool MachBroker::ChildSendTaskPortToParent() {
return base::MachPortBroker::ChildSendTaskPortToParent(kBootstrapName);
}
MachBroker* MachBroker::GetInstance() {
return base::Singleton<MachBroker,
base::LeakySingletonTraits<MachBroker>>::get();
}
base::Lock& MachBroker::GetLock() {
return broker_.GetLock();
}
void MachBroker::EnsureRunning() {
GetLock().AssertAcquired();
if (initialized_)
return;
// Do not attempt to reinitialize in the event of failure.
initialized_ = true;
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&MachBroker::RegisterNotifications, base::Unretained(this)));
if (!broker_.Init()) {
LOG(ERROR) << "Failed to initialize the MachListenerThreadDelegate";
}
}
void MachBroker::AddPlaceholderForPid(base::ProcessHandle pid,
int child_process_id) {
GetLock().AssertAcquired();
broker_.AddPlaceholderForPid(pid);
child_process_id_map_[child_process_id] = pid;
}
mach_port_t MachBroker::TaskForPid(base::ProcessHandle pid) const {
return broker_.TaskForPid(pid);
}
void MachBroker::BrowserChildProcessHostDisconnected(
const ChildProcessData& data) {
InvalidateChildProcessId(data.id);
}
void MachBroker::BrowserChildProcessCrashed(const ChildProcessData& data,
int exit_code) {
InvalidateChildProcessId(data.id);
}
void MachBroker::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case NOTIFICATION_RENDERER_PROCESS_TERMINATED:
case NOTIFICATION_RENDERER_PROCESS_CLOSED: {
RenderProcessHost* host = Source<RenderProcessHost>(source).ptr();
InvalidateChildProcessId(host->GetID());
break;
}
default:
NOTREACHED() << "Unexpected notification";
break;
}
}
// static
std::string MachBroker::GetMachPortName() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
const bool is_child = command_line->HasSwitch(switches::kProcessType);
return base::MachPortBroker::GetMachPortName(kBootstrapName, is_child);
}
MachBroker::MachBroker() : initialized_(false), broker_(kBootstrapName) {
broker_.AddObserver(this);
}
MachBroker::~MachBroker() {
broker_.RemoveObserver(this);
}
void MachBroker::OnReceivedTaskPort(base::ProcessHandle process) {
NotifyObservers(process);
}
void MachBroker::InvalidateChildProcessId(int child_process_id) {
base::AutoLock lock(GetLock());
MachBroker::ChildProcessIdMap::iterator it =
child_process_id_map_.find(child_process_id);
if (it == child_process_id_map_.end())
return;
broker_.InvalidatePid(it->second);
child_process_id_map_.erase(it);
}
void MachBroker::RegisterNotifications() {
registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_CLOSED,
NotificationService::AllBrowserContextsAndSources());
registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
NotificationService::AllBrowserContextsAndSources());
// No corresponding StopObservingBrowserChildProcesses,
// we leak this singleton.
BrowserChildProcessObserver::Add(this);
}
} // namespace content
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