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// Copyright 2008, Google 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:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER OR 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 "chrome/browser/suspend_controller.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/task.h"
#include "base/thread.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/resource_dispatcher_host.h"
#include "chrome/browser/safe_browsing/safe_browsing_service.h"
#include "net/url_request/url_request_job.h"
#include "net/url_request/url_request_job_tracker.h"
// Static member.
bool SuspendController::is_suspended_ = false;
// Static method.
void SuspendController::OnSuspend(Profile* profile) {
if (is_suspended_)
return;
is_suspended_ = true;
LOG(INFO) << "Received APM suspend message";
SuspendController* controller = g_browser_process->suspend_controller();
MessageLoop* io_loop = g_browser_process->io_thread()->message_loop();
io_loop->PostTask(FROM_HERE,
NewRunnableMethod(controller,
&SuspendController::StopRequests,
profile));
ResourceDispatcherHost* rdh = g_browser_process->resource_dispatcher_host();
SafeBrowsingService* safe_browsing_service = rdh->safe_browsing_service();
io_loop->PostTask(FROM_HERE,
NewRunnableMethod(safe_browsing_service,
&SafeBrowsingService::OnSuspend));
}
// Static method.
void SuspendController::OnResume(Profile* profile) {
if (!is_suspended_)
return;
is_suspended_ = false;
LOG(INFO) << "Received APM resume message";
SuspendController* controller = g_browser_process->suspend_controller();
MessageLoop* io_loop = g_browser_process->io_thread()->message_loop();
io_loop->PostTask(FROM_HERE,
NewRunnableMethod(controller,
&SuspendController::AllowNewRequests,
profile));
ResourceDispatcherHost* rdh = g_browser_process->resource_dispatcher_host();
SafeBrowsingService* safe_browsing_service = rdh->safe_browsing_service();
io_loop->PostTask(FROM_HERE,
NewRunnableMethod(safe_browsing_service,
&SafeBrowsingService::OnResume));
}
void SuspendController::StopRequests(Profile* profile) {
// Cancel all requests and stop creating new ones.
URLRequestJobTracker::JobIterator it = g_url_request_job_tracker.begin();
for (;it != g_url_request_job_tracker.end(); ++it) {
URLRequestJob* job = const_cast<URLRequestJob*>(*it);
job->Kill();
}
// Close the network session.
profile->GetRequestContext()->http_transaction_factory()->Suspend(true);
}
void SuspendController::AllowNewRequests(Profile* profile) {
// Re-enable the network session.
profile->GetRequestContext()->http_transaction_factory()->Suspend(false);
}
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