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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: sw=4 ts=4 et :
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/plugins/PluginProcessParent.h"
#include "base/string_util.h"
#include "base/process_util.h"
#include "mozilla/ipc/BrowserProcessSubThread.h"
#include "mozilla/plugins/PluginMessageUtils.h"
#include "mozilla/Telemetry.h"
#include "nsThreadUtils.h"
using std::vector;
using std::string;
using mozilla::ipc::BrowserProcessSubThread;
using mozilla::ipc::GeckoChildProcessHost;
using mozilla::plugins::LaunchCompleteTask;
using mozilla::plugins::PluginProcessParent;
using base::ProcessArchitecture;
PluginProcessParent::PluginProcessParent(const std::string& aPluginFilePath) :
GeckoChildProcessHost(GeckoProcessType_Plugin),
mPluginFilePath(aPluginFilePath),
mTaskFactory(this),
mMainMsgLoop(MessageLoop::current()),
mRunCompleteTaskImmediately(false)
{
}
PluginProcessParent::~PluginProcessParent()
{
}
bool
PluginProcessParent::Launch(mozilla::UniquePtr<LaunchCompleteTask> aLaunchCompleteTask,
int32_t aSandboxLevel)
{
if (aSandboxLevel != 0) {
MOZ_ASSERT(false,
"Can't enable an NPAPI process sandbox for platform/build.");
}
ProcessArchitecture currentArchitecture = base::GetCurrentProcessArchitecture();
uint32_t containerArchitectures = GetSupportedArchitecturesForProcessType(GeckoProcessType_Plugin);
uint32_t pluginLibArchitectures = currentArchitecture;
ProcessArchitecture selectedArchitecture = currentArchitecture;
if (!(pluginLibArchitectures & containerArchitectures & currentArchitecture)) {
// Prefererence in order: x86_64, i386, PPC. The only particularly important thing
// about this order is that we'll prefer 64-bit architectures first.
if (base::PROCESS_ARCH_X86_64 & pluginLibArchitectures & containerArchitectures) {
selectedArchitecture = base::PROCESS_ARCH_X86_64;
}
else if (base::PROCESS_ARCH_I386 & pluginLibArchitectures & containerArchitectures) {
selectedArchitecture = base::PROCESS_ARCH_I386;
}
else if (base::PROCESS_ARCH_PPC & pluginLibArchitectures & containerArchitectures) {
selectedArchitecture = base::PROCESS_ARCH_PPC;
}
else if (base::PROCESS_ARCH_ARM & pluginLibArchitectures & containerArchitectures) {
selectedArchitecture = base::PROCESS_ARCH_ARM;
}
else if (base::PROCESS_ARCH_MIPS & pluginLibArchitectures & containerArchitectures) {
selectedArchitecture = base::PROCESS_ARCH_MIPS;
}
else {
return false;
}
}
mLaunchCompleteTask = mozilla::Move(aLaunchCompleteTask);
vector<string> args;
args.push_back(MungePluginDsoPath(mPluginFilePath));
bool result = AsyncLaunch(args, selectedArchitecture);
if (!result) {
mLaunchCompleteTask = nullptr;
}
return result;
}
void
PluginProcessParent::Delete()
{
MessageLoop* currentLoop = MessageLoop::current();
MessageLoop* ioLoop = XRE_GetIOMessageLoop();
if (currentLoop == ioLoop) {
delete this;
return;
}
ioLoop->PostTask(NewNonOwningRunnableMethod(this, &PluginProcessParent::Delete));
}
void
PluginProcessParent::SetCallRunnableImmediately(bool aCallImmediately)
{
mRunCompleteTaskImmediately = aCallImmediately;
}
/**
* This function exists so that we may provide an additional level of
* indirection between the task being posted to main event loop (a
* RunnableMethod) and the launch complete task itself. This is needed
* for cases when both WaitUntilConnected or OnChannel* race to invoke the
* task.
*/
void
PluginProcessParent::RunLaunchCompleteTask()
{
if (mLaunchCompleteTask) {
mLaunchCompleteTask->Run();
mLaunchCompleteTask = nullptr;
}
}
bool
PluginProcessParent::WaitUntilConnected(int32_t aTimeoutMs)
{
bool result = GeckoChildProcessHost::WaitUntilConnected(aTimeoutMs);
if (mRunCompleteTaskImmediately && mLaunchCompleteTask) {
if (result) {
mLaunchCompleteTask->SetLaunchSucceeded();
}
RunLaunchCompleteTask();
}
return result;
}
void
PluginProcessParent::OnChannelConnected(int32_t peer_pid)
{
GeckoChildProcessHost::OnChannelConnected(peer_pid);
if (mLaunchCompleteTask && !mRunCompleteTaskImmediately) {
mLaunchCompleteTask->SetLaunchSucceeded();
mMainMsgLoop->PostTask(mTaskFactory.NewRunnableMethod(
&PluginProcessParent::RunLaunchCompleteTask));
}
}
void
PluginProcessParent::OnChannelError()
{
GeckoChildProcessHost::OnChannelError();
if (mLaunchCompleteTask && !mRunCompleteTaskImmediately) {
mMainMsgLoop->PostTask(mTaskFactory.NewRunnableMethod(
&PluginProcessParent::RunLaunchCompleteTask));
}
}
bool
PluginProcessParent::IsConnected()
{
mozilla::MonitorAutoLock lock(mMonitor);
return mProcessState == PROCESS_CONNECTED;
}
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