blob: eac26a6e87f4d3b9eeef7426b8ccdbee7a3aeef3 [file] [log] [blame]
// Copyright (c) 2012 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 <map>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/command_line.h"
#include "base/lazy_instance.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/sequence_checker.h"
#include "base/sequenced_task_runner.h"
#include "base/threading/thread.h"
#include "chromeos/chromeos_export.h"
#include "chromeos/process_proxy/process_proxy.h"
namespace chromeos {
// Keeps track of all created ProcessProxies. It is created lazily and should
// live on a single thread (where all methods must be called).
class CHROMEOS_EXPORT ProcessProxyRegistry {
using OutputCallback = base::Callback<void(const std::string& id,
const std::string& output_type,
const std::string& output_data)>;
// Info we need about a ProcessProxy instance.
struct ProcessProxyInfo {
scoped_refptr<ProcessProxy> proxy;
OutputCallback callback;
// This is to make map::insert happy, we don't init anything.
ProcessProxyInfo(const ProcessProxyInfo& other);
static ProcessProxyRegistry* Get();
// Returns a SequencedTaskRunner where the singleton instance of
// ProcessProxyRegistry lives.
static scoped_refptr<base::SequencedTaskRunner> GetTaskRunner();
// Starts new ProcessProxy (which starts new process).
// Returns true if the process is created sucessfully, false otherwise.
// The unique process id is passed back via |id|.
bool OpenProcess(const base::CommandLine& cmdline,
const std::string& user_id_hash,
const OutputCallback& callback,
std::string* id);
// Sends data to the process identified by |id|.
bool SendInput(const std::string& id, const std::string& data);
// Stops the process identified by |id|.
bool CloseProcess(const std::string& id);
// Reports terminal resize to process proxy.
bool OnTerminalResize(const std::string& id, int width, int height);
// Notifies process proxy identified by |id| that previously reported output
// has been handled.
void AckOutput(const std::string& id);
// Shuts down registry, closing all associated processed.
void ShutDown();
// Get the process handle for testing purposes.
base::ProcessHandle GetProcessHandleForTesting(const std::string& id);
friend struct ::base::LazyInstanceTraitsBase<ProcessProxyRegistry>;
// Gets called when output gets detected.
void OnProcessOutput(const std::string& id,
ProcessOutputType type,
const std::string& data);
bool EnsureWatcherThreadStarted();
// Map of all existing ProcessProxies.
std::map<std::string, ProcessProxyInfo> proxy_map_;
std::unique_ptr<base::Thread> watcher_thread_;
} // namespace chromeos