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// Copyright (c) 2013 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 "chrome/browser/profiles/profile_dependency_manager.h"
#include <algorithm>
#include <deque>
#include <iterator>
#include "base/bind.h"
#include "chrome/browser/profiles/profile_keyed_base_factory.h"
#include "content/public/browser/browser_context.h"
#ifndef NDEBUG
#include "base/command_line.h"
#include "base/file_util.h"
#include "chrome/common/chrome_switches.h"
#endif
class Profile;
void ProfileDependencyManager::AddComponent(
ProfileKeyedBaseFactory* component) {
dependency_graph_.AddNode(component);
}
void ProfileDependencyManager::RemoveComponent(
ProfileKeyedBaseFactory* component) {
dependency_graph_.RemoveNode(component);
}
void ProfileDependencyManager::AddEdge(ProfileKeyedBaseFactory* depended,
ProfileKeyedBaseFactory* dependee) {
dependency_graph_.AddEdge(depended, dependee);
}
void ProfileDependencyManager::CreateProfileServices(
content::BrowserContext* profile, bool is_testing_profile) {
#ifndef NDEBUG
// Unmark |profile| as dead. This exists because of unit tests, which will
// often have similar stack structures. 0xWhatever might be created, go out
// of scope, and then a new Profile object might be created at 0xWhatever.
dead_profile_pointers_.erase(profile);
#endif
std::vector<DependencyNode*> construction_order;
if (!dependency_graph_.GetConstructionOrder(&construction_order)) {
NOTREACHED();
}
#ifndef NDEBUG
DumpProfileDependencies(profile);
#endif
for (size_t i = 0; i < construction_order.size(); i++) {
ProfileKeyedBaseFactory* factory =
static_cast<ProfileKeyedBaseFactory*>(construction_order[i]);
if (!profile->IsOffTheRecord()) {
// We only register preferences on normal profiles because the incognito
// profile shares the pref service with the normal one.
factory->RegisterUserPrefsOnProfile(profile);
}
if (is_testing_profile && factory->ServiceIsNULLWhileTesting()) {
factory->SetEmptyTestingFactory(profile);
} else if (factory->ServiceIsCreatedWithProfile()) {
// Create the service.
factory->CreateServiceNow(profile);
}
}
}
void ProfileDependencyManager::DestroyProfileServices(
content::BrowserContext* profile) {
std::vector<DependencyNode*> destruction_order;
if (!dependency_graph_.GetDestructionOrder(&destruction_order)) {
NOTREACHED();
}
#ifndef NDEBUG
DumpProfileDependencies(profile);
#endif
for (size_t i = 0; i < destruction_order.size(); i++) {
ProfileKeyedBaseFactory* factory =
static_cast<ProfileKeyedBaseFactory*>(destruction_order[i]);
factory->ProfileShutdown(profile);
}
#ifndef NDEBUG
// The profile is now dead to the rest of the program.
dead_profile_pointers_.insert(profile);
#endif
for (size_t i = 0; i < destruction_order.size(); i++) {
ProfileKeyedBaseFactory* factory =
static_cast<ProfileKeyedBaseFactory*>(destruction_order[i]);
factory->ProfileDestroyed(profile);
}
}
#ifndef NDEBUG
void ProfileDependencyManager::AssertProfileWasntDestroyed(
content::BrowserContext* profile) {
if (dead_profile_pointers_.find(profile) != dead_profile_pointers_.end()) {
NOTREACHED() << "Attempted to access a Profile that was ShutDown(). This "
<< "is most likely a heap smasher in progress. After "
<< "ProfileKeyedService::Shutdown() completes, your service "
<< "MUST NOT refer to depended Profile services again.";
}
}
#endif
// static
ProfileDependencyManager* ProfileDependencyManager::GetInstance() {
return Singleton<ProfileDependencyManager>::get();
}
ProfileDependencyManager::ProfileDependencyManager() {
}
ProfileDependencyManager::~ProfileDependencyManager() {
}
#ifndef NDEBUG
namespace {
std::string ProfileKeyedBaseFactoryGetNodeName(DependencyNode* node) {
return static_cast<ProfileKeyedBaseFactory*>(node)->name();
}
} // namespace
void ProfileDependencyManager::DumpProfileDependencies(
content::BrowserContext* profile) {
// Whenever we try to build a destruction ordering, we should also dump a
// dependency graph to "/path/to/profile/profile-dependencies.dot".
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDumpProfileDependencyGraph)) {
base::FilePath dot_file =
profile->GetPath().AppendASCII("profile-dependencies.dot");
std::string contents = dependency_graph_.DumpAsGraphviz(
"Profile", base::Bind(&ProfileKeyedBaseFactoryGetNodeName));
file_util::WriteFile(dot_file, contents.c_str(), contents.size());
}
}
#endif // NDEBUG
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