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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PluginProcess.h"
#if ENABLE(PLUGIN_PROCESS)
#include "ArgumentCoders.h"
#include "MachPort.h"
#include "NetscapePluginModule.h"
#include "PluginProcessProxyMessages.h"
#include "PluginProcessCreationParameters.h"
#include "WebProcessConnection.h"
namespace WebKit {
static const double shutdownTimeout = 15.0;
PluginProcess& PluginProcess::shared()
{
DEFINE_STATIC_LOCAL(PluginProcess, pluginProcess, ());
return pluginProcess;
}
PluginProcess::PluginProcess()
: m_shutdownTimer(RunLoop::main(), this, &PluginProcess::shutdownTimerFired)
#if USE(ACCELERATED_COMPOSITING) && PLATFORM(MAC)
, m_compositingRenderServerPort(MACH_PORT_NULL)
#endif
{
}
PluginProcess::~PluginProcess()
{
}
void PluginProcess::initialize(CoreIPC::Connection::Identifier serverIdentifier, RunLoop* runLoop)
{
ASSERT(!m_connection);
m_connection = CoreIPC::Connection::createClientConnection(serverIdentifier, this, runLoop);
m_connection->setDidCloseOnConnectionWorkQueueCallback(didCloseOnConnectionWorkQueue);
m_connection->open();
}
void PluginProcess::removeWebProcessConnection(WebProcessConnection* webProcessConnection)
{
size_t vectorIndex = m_webProcessConnections.find(webProcessConnection);
ASSERT(vectorIndex != notFound);
m_webProcessConnections.remove(vectorIndex);
if (m_webProcessConnections.isEmpty() && m_pluginModule) {
// Decrement the load count. This is balanced by a call to incrementLoadCount in createWebProcessConnection.
m_pluginModule->decrementLoadCount();
}
startShutdownTimerIfNecessary();
}
NetscapePluginModule* PluginProcess::netscapePluginModule()
{
if (!m_pluginModule) {
ASSERT(!m_pluginPath.isNull());
m_pluginModule = NetscapePluginModule::getOrCreate(m_pluginPath);
#if PLATFORM(MAC)
if (m_pluginModule) {
if (m_pluginModule->pluginQuirks().contains(PluginQuirks::PrognameShouldBeWebKitPluginHost))
setprogname("WebKitPluginHost");
}
#endif
}
return m_pluginModule.get();
}
void PluginProcess::didReceiveMessage(CoreIPC::Connection* connection, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments)
{
didReceivePluginProcessMessage(connection, messageID, arguments);
}
void PluginProcess::didClose(CoreIPC::Connection*)
{
// The UI process has crashed, just go ahead and quit.
// FIXME: If the plug-in is spinning in the main loop, we'll never get this message.
RunLoop::current()->stop();
}
void PluginProcess::didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID)
{
}
NO_RETURN void PluginProcess::didFailToSendSyncMessage(CoreIPC::Connection*)
{
// We were making a synchronous call to a web process that doesn't exist any more.
// Callers are unlikely to be prepared for an error like this, so it's best to exit immediately.
exit(0);
}
void PluginProcess::initializePluginProcess(const PluginProcessCreationParameters& parameters)
{
ASSERT(!m_pluginModule);
m_pluginPath = parameters.pluginPath;
platformInitialize(parameters);
}
void PluginProcess::createWebProcessConnection()
{
// FIXME: This is platform specific!
// Create the listening port.
mach_port_t listeningPort;
mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &listeningPort);
bool didHaveAnyWebProcessConnections = !m_webProcessConnections.isEmpty();
// Create a listening connection.
RefPtr<WebProcessConnection> connection = WebProcessConnection::create(listeningPort);
m_webProcessConnections.append(connection.release());
CoreIPC::MachPort clientPort(listeningPort, MACH_MSG_TYPE_MAKE_SEND);
m_connection->send(Messages::PluginProcessProxy::DidCreateWebProcessConnection(clientPort), 0);
if (NetscapePluginModule* module = netscapePluginModule()) {
if (!didHaveAnyWebProcessConnections) {
// Increment the load count. This is matched by a call to decrementLoadCount in removeWebProcessConnection.
// We do this so that the plug-in module's NP_Shutdown won't be called until right before exiting.
module->incrementLoadCount();
}
}
// Stop the shutdown timer.
m_shutdownTimer.stop();
}
void PluginProcess::getSitesWithData(uint64_t callbackID)
{
Vector<String> sites;
if (NetscapePluginModule* module = netscapePluginModule())
sites = module->sitesWithData();
m_connection->send(Messages::PluginProcessProxy::DidGetSitesWithData(sites, callbackID), 0);
startShutdownTimerIfNecessary();
}
void PluginProcess::clearSiteData(const Vector<String>& sites, uint64_t flags, uint64_t maxAgeInSeconds, uint64_t callbackID)
{
if (NetscapePluginModule* module = netscapePluginModule()) {
if (sites.isEmpty()) {
// Clear everything.
module->clearSiteData(String(), flags, maxAgeInSeconds);
} else {
for (size_t i = 0; i < sites.size(); ++i)
module->clearSiteData(sites[i], flags, maxAgeInSeconds);
}
}
m_connection->send(Messages::PluginProcessProxy::DidClearSiteData(callbackID), 0);
startShutdownTimerIfNecessary();
}
void PluginProcess::startShutdownTimerIfNecessary()
{
if (!m_webProcessConnections.isEmpty())
return;
// Start the shutdown timer.
m_shutdownTimer.startOneShot(shutdownTimeout);
}
void PluginProcess::shutdownTimerFired()
{
RunLoop::current()->stop();
}
} // namespace WebKit
#endif // ENABLE(PLUGIN_PROCESS)
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