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// Copyright 2015 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 "components/crash/content/browser/crash_dump_observer_android.h"
#include <unistd.h>
#include "base/bind.h"
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/threading/sequenced_worker_pool.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/browser/render_process_host.h"
using content::BrowserThread;
namespace breakpad {
namespace {
base::LazyInstance<CrashDumpObserver> g_instance = LAZY_INSTANCE_INITIALIZER;
}
// static
void CrashDumpObserver::Create() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// If this DCHECK fails in a unit test then a previously executing
// test that makes use of CrashDumpObserver forgot to create a
// ShadowingAtExitManager.
DCHECK(g_instance == nullptr);
g_instance.Get();
}
// static
CrashDumpObserver* CrashDumpObserver::GetInstance() {
DCHECK(!(g_instance == nullptr));
return g_instance.Pointer();
}
CrashDumpObserver::CrashDumpObserver() {
notification_registrar_.Add(this,
content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
content::NotificationService::AllSources());
notification_registrar_.Add(this,
content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
content::NotificationService::AllSources());
BrowserChildProcessObserver::Add(this);
}
CrashDumpObserver::~CrashDumpObserver() {
BrowserChildProcessObserver::Remove(this);
}
void CrashDumpObserver::RegisterClient(std::unique_ptr<Client> client) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
base::AutoLock auto_lock(registered_clients_lock_);
registered_clients_.push_back(std::move(client));
}
void CrashDumpObserver::OnChildExit(int child_process_id,
base::ProcessHandle pid,
content::ProcessType process_type,
base::TerminationStatus termination_status,
base::android::ApplicationState app_state) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
std::vector<Client*> registered_clients_copy;
{
base::AutoLock auto_lock(registered_clients_lock_);
for (auto& client : registered_clients_)
registered_clients_copy.push_back(client.get());
}
for (auto& client : registered_clients_copy) {
client->OnChildExit(child_process_id, pid, process_type, termination_status,
app_state);
}
}
void CrashDumpObserver::BrowserChildProcessStarted(
int child_process_id,
content::FileDescriptorInfo* mappings) {
DCHECK_CURRENTLY_ON(BrowserThread::PROCESS_LAUNCHER);
std::vector<Client*> registered_clients_copy;
{
base::AutoLock auto_lock(registered_clients_lock_);
for (auto& client : registered_clients_)
registered_clients_copy.push_back(client.get());
}
for (auto& client : registered_clients_copy) {
client->OnChildStart(child_process_id, mappings);
}
}
void CrashDumpObserver::BrowserChildProcessHostDisconnected(
const content::ChildProcessData& data) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
OnChildExit(data.id, data.handle,
static_cast<content::ProcessType>(data.process_type),
base::TERMINATION_STATUS_MAX_ENUM,
base::android::ApplicationStatusListener::GetState());
}
void CrashDumpObserver::BrowserChildProcessCrashed(
const content::ChildProcessData& data,
int exit_code) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
OnChildExit(data.id, data.handle,
static_cast<content::ProcessType>(data.process_type),
base::TERMINATION_STATUS_ABNORMAL_TERMINATION,
base::android::APPLICATION_STATE_UNKNOWN);
}
void CrashDumpObserver::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::RenderProcessHost* rph =
content::Source<content::RenderProcessHost>(source).ptr();
base::TerminationStatus term_status = base::TERMINATION_STATUS_MAX_ENUM;
base::android::ApplicationState app_state =
base::android::APPLICATION_STATE_UNKNOWN;
switch (type) {
case content::NOTIFICATION_RENDERER_PROCESS_TERMINATED: {
// NOTIFICATION_RENDERER_PROCESS_TERMINATED is sent when the renderer
// process is cleanly shutdown.
term_status = base::TERMINATION_STATUS_NORMAL_TERMINATION;
break;
}
case content::NOTIFICATION_RENDERER_PROCESS_CLOSED: {
// We do not care about android fast shutdowns as it is a known case where
// the renderer is intentionally killed when we are done with it.
if (rph->FastShutdownStarted()) {
break;
}
content::RenderProcessHost::RendererClosedDetails* process_details =
content::Details<content::RenderProcessHost::RendererClosedDetails>(
details)
.ptr();
term_status = process_details->status;
app_state = base::android::ApplicationStatusListener::GetState();
break;
}
default:
NOTREACHED();
return;
}
OnChildExit(rph->GetID(), rph->GetHandle(), content::PROCESS_TYPE_RENDERER,
term_status, app_state);
}
} // namespace breakpad
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