process.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "utils/process.h"
 
#include <unistd.h>
 
#include "localconsts.h"
 
PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#ifdef USE_SDL2
#ifdef ANDROID
#include <SDL_system.h>
#endif // ANDROID
#endif // USE_SDL2
PRAGMA48(GCC diagnostic pop)
 
#include "debug.h"
 
#if defined(WIN32) || defined(__linux__) || \
 defined(__linux) || defined(__APPLE__)
const int timeOut = 10;
#endif // defined(WIN32) || defined(__linux__) ||
 // defined(__linux) || defined(__APPLE__)
 
#ifdef WIN32
 
#include "utils/stringutils.h"
 
#include <windows.h>
 
int execFileWait(const std::string &pathName, const std::string &name A_UNUSED,
 const std::string &arg1, const std::string &arg2,
 const int waitTime A_UNUSED)
{
// if (!waitTime)
// waitTime = timeOut;
 
 STARTUPINFO siStartupInfo;
 PROCESS_INFORMATION piProcessInfo;
 memset(&siStartupInfo, 0, sizeof(siStartupInfo));
 memset(&piProcessInfo, 0, sizeof(piProcessInfo));
 siStartupInfo.cb = sizeof(siStartupInfo);
 DWORD ret = -1;
 std::string args(std::string(pathName).append(" ").append(arg1));
 if (!arg2.empty())
 args.append(" ").append(arg2);
 
 if (CreateProcess(pathName.c_str(), const_cast<char*>(args.c_str()),
 nullptr, nullptr, false, CREATE_DEFAULT_ERROR_MODE, nullptr, nullptr,
 &siStartupInfo, &piProcessInfo) != false)
 {
 if (!WaitForSingleObject(piProcessInfo.hProcess, timeOut * 1000))
 {
 if (GetExitCodeProcess(piProcessInfo.hProcess, &ret))
 {
 CloseHandle(piProcessInfo.hProcess);
 CloseHandle(piProcessInfo.hThread);
 return ret;
 }
 }
 TerminateProcess(piProcessInfo.hProcess, -1);
 }
 
 CloseHandle(piProcessInfo.hProcess);
 CloseHandle(piProcessInfo.hThread);
 return -1;
}
 
bool execFile(const std::string &pathName, const std::string &name A_UNUSED,
 const std::string &arg1, const std::string &arg2)
{
 STARTUPINFO siStartupInfo;
 PROCESS_INFORMATION piProcessInfo;
 memset(&siStartupInfo, 0, sizeof(siStartupInfo));
 memset(&piProcessInfo, 0, sizeof(piProcessInfo));
 siStartupInfo.cb = sizeof(siStartupInfo);
 std::string args(std::string(pathName).append(" ").append(arg1));
 if (!arg2.empty())
 args.append(" ").append(arg2);
 
 bool res = CreateProcess(pathName.c_str(), const_cast<char*>(
 args.c_str()), nullptr, nullptr, false,
 CREATE_DEFAULT_ERROR_MODE, nullptr, nullptr, &siStartupInfo,
 &piProcessInfo);
 
 CloseHandle(piProcessInfo.hProcess);
 CloseHandle(piProcessInfo.hThread);
 return res;
}
 
 
#elif defined __linux__ || defined __linux || defined __APPLE__
 
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <csignal>
 
int execFileWait(const std::string &pathName, const std::string &name,
 const std::string &arg1, const std::string &arg2,
 int waitTime)
{
 pid_t mon_pid;
 int status;
 
 if (waitTime == 0)
 waitTime = timeOut;
 
 if ((mon_pid = fork()) == -1)
 { // fork error
 return -1;
 }
 else if (mon_pid == 0)
 { // monitoring child
 pid_t pid;
 if ((pid = fork()) == -1)
 { // fork error
 return -1;
 }
 else if (pid == 0)
 { // work child
 if (arg2.empty())
 {
 execl(pathName.c_str(), name.c_str(),
 arg1.c_str(), static_cast<char *>(nullptr));
 }
 else
 {
 execl(pathName.c_str(), name.c_str(), arg1.c_str(),
 arg2.c_str(), static_cast<char *>(nullptr));
 }
 _exit(-1);
 }
 
 // monitoring process
 pid_t sleep_pid;
 if ((sleep_pid = fork()) == -1)
 { // fork error
 return -1;
 }
 else if (sleep_pid == 0)
 { // sleep pid
 sleep(waitTime);
 execl("/bin/true", "/bin/true", static_cast<char *>(nullptr));
 _exit(-1);
 }
 
 // monitoring process
 const pid_t exited_pid = wait(&status);
 int ret = -1;
 if (exited_pid == pid)
 {
 kill(sleep_pid, SIGKILL);
 if (WIFEXITED(status))
 ret = WEXITSTATUS(status);
 }
 else
 {
 kill(pid, SIGKILL);
 ret = -1;
 }
 wait(nullptr);
 execl("/bin/true", "/bin/true", static_cast<char *>(nullptr));
 _exit(ret);
 }
 
 // monitoring parent
 waitpid(mon_pid, &status, 0);
 if (WIFEXITED(status))
 return WEXITSTATUS(status);
 
 return -1;
}
 
bool execFile(const std::string &pathName, const std::string &name,
 const std::string &arg1, const std::string &arg2)
{
 struct stat statbuf;
 // file not exists
 if (stat(pathName.c_str(), &statbuf) != 0)
 return false;
 
 pid_t pid;
 if ((pid = fork()) == -1)
 { // fork error
 return false;
 }
 else if (pid == 0)
 { // work child
 if (arg2.empty())
 {
 execl(pathName.c_str(), name.c_str(),
 arg1.c_str(), static_cast<char *>(nullptr));
 }
 else
 {
 execl(pathName.c_str(), name.c_str(), arg1.c_str(),
 arg2.c_str(), static_cast<char *>(nullptr));
 }
 _exit(-1);
 PRAGMACLANG6(GCC diagnostic push)
 PRAGMACLANG6(GCC diagnostic ignored "-Wunreachable-code-return")
 return false;
 PRAGMACLANG6(GCC diagnostic pop)
 }
 return true;
}
 
#else // OTHER
 
int execFileWait(const std::string &pathName A_UNUSED,
 const std::string &name A_UNUSED,
 const std::string &arg1 A_UNUSED,
 const std::string &arg2 A_UNUSED,
 int waitTime A_UNUSED)
{
 return -1;
}
 
bool execFile(const std::string &pathName A_UNUSED,
 const std::string &name A_UNUSED,
 const std::string &arg1 A_UNUSED,
 const std::string &arg2 A_UNUSED)
{
 return false;
}
 
#endif // WIN32
 
#if defined WIN64
bool openBrowser(std::string url)
{
 return reinterpret_cast<int64_t>(ShellExecute(nullptr, "open",
 replaceAll(url, " ", "").c_str(),
 nullptr, nullptr, SW_SHOWNORMAL)) > 32;
}
#elif defined WIN32
bool openBrowser(std::string url)
{
 return reinterpret_cast<int32_t>(ShellExecute(nullptr, "open",
 replaceAll(url, " ", "").c_str(),
 nullptr, nullptr, SW_SHOWNORMAL)) > 32;
}
#elif defined ANDROID
#include "utils/stringutils.h"
#ifndef USE_SDL2
PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_screenkeyboard.h>
PRAGMA48(GCC diagnostic pop)
#endif // USE_SDL2
 
bool openBrowser(std::string url)
{
#ifdef USE_SDL2
 SDL_OpenBrowser(replaceAll(url, " ", "").c_str());
#else // USE_SDL2
 
 SDL_ANDROID_OpenBrowser(replaceAll(url, " ", "").c_str());
#endif // USE_SDL2
 
 return true;
}
#elif defined __APPLE__
bool openBrowser(std::string url)
{
 return execFile("/usr/bin/open", "/usr/bin/open", url, "");
}
#elif defined __OpenBSD__ || defined __FreeBSD__ || defined __DragonFly__
bool openBrowser(std::string url)
{
 return execFile("/usr/local/bin/xdg-open",
 "/usr/local/bin/xdg-open", url, "");
}
#elif defined __linux__ || defined __linux
bool openBrowser(std::string url)
{
 return execFile("/usr/bin/xdg-open", "/usr/bin/xdg-open", url, "");
}
#elif defined __native_client__
 
#include "utils/naclmessages.h"
 
bool openBrowser(std::string url)
{
 naclPostMessage("open-browser", url);
 return true;
}
#else // OTHER
bool openBrowser(std::string url A_UNUSED)
{
 return false;
}
 
#endif // WIN32
 
#ifdef WIN32
void setPriority(const bool big)
{
 HANDLE hCurrentProcess = GetCurrentProcess();
 if (big)
 SetPriorityClass(hCurrentProcess, ABOVE_NORMAL_PRIORITY_CLASS);
 else
 SetPriorityClass(hCurrentProcess, BELOW_NORMAL_PRIORITY_CLASS);
}
#else // WIN32
 
void setPriority(const bool big A_UNUSED)
{
}
#endif // WIN32