/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _wayland_proxy_h_
#define _wayland_proxy_h_
#include <poll.h>
#include <vector>
#include <fcntl.h>
#include <atomic>
#include <memory>
class ProxiedConnection;
typedef void (*CompositorCrashHandler)();
#define WAYLAND_PROXY_ENABLED (
1 <<
0)
#define WAYLAND_PROXY_DISABLED (
1 <<
1)
#define WAYLAND_PROXY_RUN_FAILED (
1 <<
2)
#define WAYLAND_PROXY_TERMINATED (
1 <<
3)
#define WAYLAND_PROXY_CONNECTION_ADDED (
1 <<
4)
#define WAYLAND_PROXY_CONNECTION_REMOVED (
1 <<
5)
#define WAYLAND_PROXY_APP_TERMINATED (
1 <<
6)
#define WAYLAND_PROXY_APP_CONNECTION_FAILED (
1 <<
7)
#define WAYLAND_PROXY_COMPOSITOR_ATTACHED (
1 <<
8)
#define WAYLAND_PROXY_COMPOSITOR_CONNECTION_FAILED (
1 <<
9)
#define WAYLAND_PROXY_COMPOSITOR_SOCKET_FAILED (
1 <<
10)
class WaylandProxy {
public:
static std::unique_ptr<WaylandProxy> Create();
// Launch an application with Wayland proxy set
bool RunChildApplication(
char* argv[]);
// Run proxy as part of already running application
// and set Wayland proxy display for it.
bool RunThread();
// Set original Wayland display env variable and clear
// proxy display file.
void RestoreWaylandDisplay();
static void SetVerbose(
bool aVerbose);
static void SetCompositorCrashHandler(CompositorCrashHandler aCrashHandler);
static void CompositorCrashed();
static void AddState(
unsigned aState);
static const char* GetState();
~WaylandProxy();
private:
bool Init();
void Run();
void SetWaylandProxyDisplay();
static void* RunProxyThread(WaylandProxy* aProxy);
bool CheckWaylandDisplay(
const char* aWaylandDisplay);
bool SetupWaylandDisplays();
bool StartProxyServer();
bool IsChildAppTerminated();
bool PollConnections();
bool ProcessConnections();
void Info(
const char* aFormat, ...);
void Warning(
const char* aOperation);
void Error(
const char* aOperation);
void ErrorPlain(
const char* aFormat, ...);
void CheckCompositor();
private:
// List of all Compositor <-> Application connections
std::vector<std::unique_ptr<ProxiedConnection>> mConnections;
int mProxyServerSocket = -
1;
pid_t mApplicationPID =
0;
std::atomic<
bool> mThreadRunning =
false;
pthread_t mThread;
// sockaddr_un has hardcoded max len of sun_path
static constexpr
int sMaxDisplayNameLen =
108;
// Name of Wayland display provided by compositor
char mWaylandDisplay[sMaxDisplayNameLen];
// Name of Wayland display provided by us
char mWaylandProxy[sMaxDisplayNameLen];
static CompositorCrashHandler sCompositorCrashHandler;
static std::atomic<
unsigned> sProxyStateFlags;
};
#endif // _wayland_proxy_h_