mirror of
https://github.com/moparisthebest/minetest
synced 2024-11-17 23:05:07 -05:00
1dfd977ec4
The source used a hodge-podge of different combinations of different macros to check for linux: 'linux', '__linux', '__linux__'. As '__linux__' is standard (Posix), and the others are not, the source now uniformly uses __linux__. If either linux or __linux are defined, it is made sure that __linux__ is defined as well.
794 lines
17 KiB
C++
794 lines
17 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/*
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Random portability stuff
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See comments in porting.h
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*/
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#include "porting.h"
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#if defined(__FreeBSD__)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#elif defined(_WIN32)
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#include <windows.h>
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#include <wincrypt.h>
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#include <algorithm>
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#endif
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#if !defined(_WIN32)
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#include <unistd.h>
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#include <sys/utsname.h>
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#endif
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#if defined(__hpux)
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#define _PSTAT64
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#include <sys/pstat.h>
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#endif
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#if !defined(_WIN32) && !defined(__APPLE__) && \
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!defined(__ANDROID__) && !defined(SERVER)
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#define XORG_USED
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#endif
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#ifdef XORG_USED
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#endif
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#include "config.h"
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#include "debug.h"
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#include "filesys.h"
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#include "log.h"
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#include "util/string.h"
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#include "settings.h"
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#include <list>
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namespace porting
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{
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/*
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Signal handler (grabs Ctrl-C on POSIX systems)
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*/
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bool g_killed = false;
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bool * signal_handler_killstatus(void)
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{
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return &g_killed;
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}
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#if !defined(_WIN32) // POSIX
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#include <signal.h>
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void signal_handler(int sig)
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{
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if (!g_killed) {
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if (sig == SIGINT) {
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dstream << "INFO: signal_handler(): "
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<< "Ctrl-C pressed, shutting down." << std::endl;
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} else if (sig == SIGTERM) {
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dstream << "INFO: signal_handler(): "
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<< "got SIGTERM, shutting down." << std::endl;
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}
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// Comment out for less clutter when testing scripts
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/*dstream << "INFO: sigint_handler(): "
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<< "Printing debug stacks" << std::endl;
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debug_stacks_print();*/
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g_killed = true;
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} else {
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(void)signal(sig, SIG_DFL);
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}
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}
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void signal_handler_init(void)
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{
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(void)signal(SIGINT, signal_handler);
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(void)signal(SIGTERM, signal_handler);
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}
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#else // _WIN32
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#include <signal.h>
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BOOL WINAPI event_handler(DWORD sig)
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{
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switch (sig) {
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case CTRL_C_EVENT:
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case CTRL_CLOSE_EVENT:
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case CTRL_LOGOFF_EVENT:
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case CTRL_SHUTDOWN_EVENT:
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if (!g_killed) {
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dstream << "INFO: event_handler(): "
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<< "Ctrl+C, Close Event, Logoff Event or Shutdown Event,"
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" shutting down." << std::endl;
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g_killed = true;
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} else {
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(void)signal(SIGINT, SIG_DFL);
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}
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break;
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case CTRL_BREAK_EVENT:
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break;
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}
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return TRUE;
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}
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void signal_handler_init(void)
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{
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SetConsoleCtrlHandler((PHANDLER_ROUTINE)event_handler, TRUE);
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}
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#endif
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/*
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Path mangler
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*/
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// Default to RUN_IN_PLACE style relative paths
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std::string path_share = "..";
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std::string path_user = "..";
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std::string path_locale = path_share + DIR_DELIM + "locale";
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std::string path_cache = path_user + DIR_DELIM + "cache";
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std::string getDataPath(const char *subpath)
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{
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return path_share + DIR_DELIM + subpath;
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}
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void pathRemoveFile(char *path, char delim)
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{
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// Remove filename and path delimiter
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int i;
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for(i = strlen(path)-1; i>=0; i--)
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{
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if(path[i] == delim)
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break;
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}
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path[i] = 0;
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}
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bool detectMSVCBuildDir(const std::string &path)
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{
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const char *ends[] = {
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"bin\\Release",
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"bin\\MinSizeRel",
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"bin\\RelWithDebInfo",
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"bin\\Debug",
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"bin\\Build",
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NULL
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};
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return (removeStringEnd(path, ends) != "");
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}
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std::string get_sysinfo()
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{
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#ifdef _WIN32
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OSVERSIONINFO osvi;
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std::ostringstream oss;
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std::string tmp;
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ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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GetVersionEx(&osvi);
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tmp = osvi.szCSDVersion;
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std::replace(tmp.begin(), tmp.end(), ' ', '_');
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oss << "Windows/" << osvi.dwMajorVersion << "."
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<< osvi.dwMinorVersion;
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if (osvi.szCSDVersion[0])
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oss << "-" << tmp;
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oss << " ";
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#ifdef _WIN64
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oss << "x86_64";
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#else
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BOOL is64 = FALSE;
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if (IsWow64Process(GetCurrentProcess(), &is64) && is64)
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oss << "x86_64"; // 32-bit app on 64-bit OS
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else
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oss << "x86";
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#endif
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return oss.str();
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#else
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struct utsname osinfo;
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uname(&osinfo);
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return std::string(osinfo.sysname) + "/"
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+ osinfo.release + " " + osinfo.machine;
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#endif
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}
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bool getCurrentWorkingDir(char *buf, size_t len)
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{
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#ifdef _WIN32
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DWORD ret = GetCurrentDirectory(len, buf);
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return (ret != 0) && (ret <= len);
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#else
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return getcwd(buf, len);
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#endif
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}
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bool getExecPathFromProcfs(char *buf, size_t buflen)
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{
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#ifndef _WIN32
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buflen--;
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ssize_t len;
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if ((len = readlink("/proc/self/exe", buf, buflen)) == -1 &&
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(len = readlink("/proc/curproc/file", buf, buflen)) == -1 &&
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(len = readlink("/proc/curproc/exe", buf, buflen)) == -1)
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return false;
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buf[len] = '\0';
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return true;
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#else
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return false;
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#endif
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}
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//// Windows
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#if defined(_WIN32)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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DWORD written = GetModuleFileNameA(NULL, buf, len);
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if (written == 0 || written == len)
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return false;
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return true;
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}
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//// Linux
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#elif defined(__linux__)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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if (!getExecPathFromProcfs(buf, len))
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return false;
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return true;
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}
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//// Mac OS X, Darwin
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#elif defined(__APPLE__)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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uint32_t lenb = (uint32_t)len;
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if (_NSGetExecutablePath(buf, &lenb) == -1)
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return false;
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return true;
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}
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//// FreeBSD, NetBSD, DragonFlyBSD
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#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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// Try getting path from procfs first, since valgrind
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// doesn't work with the latter
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if (getExecPathFromProcfs(buf, len))
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return true;
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int mib[4];
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PATHNAME;
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mib[3] = -1;
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if (sysctl(mib, 4, buf, &len, NULL, 0) == -1)
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return false;
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return true;
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}
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//// Solaris
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#elif defined(__sun) || defined(sun)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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const char *exec = getexecname();
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if (exec == NULL)
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return false;
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if (strlcpy(buf, exec, len) >= len)
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return false;
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return true;
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}
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// HP-UX
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#elif defined(__hpux)
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bool getCurrentExecPath(char *buf, size_t len)
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{
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struct pst_status psts;
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if (pstat_getproc(&psts, sizeof(psts), 0, getpid()) == -1)
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return false;
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if (pstat_getpathname(buf, len, &psts.pst_fid_text) == -1)
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return false;
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return true;
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}
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#else
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bool getCurrentExecPath(char *buf, size_t len)
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{
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return false;
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}
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#endif
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//// Windows
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#if defined(_WIN32)
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bool setSystemPaths()
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{
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char buf[BUFSIZ];
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// Find path of executable and set path_share relative to it
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FATAL_ERROR_IF(!getCurrentExecPath(buf, sizeof(buf)),
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"Failed to get current executable path");
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pathRemoveFile(buf, '\\');
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// Use ".\bin\.."
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path_share = std::string(buf) + "\\..";
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// Use "C:\Documents and Settings\user\Application Data\<PROJECT_NAME>"
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DWORD len = GetEnvironmentVariable("APPDATA", buf, sizeof(buf));
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FATAL_ERROR_IF(len == 0 || len > sizeof(buf), "Failed to get APPDATA");
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path_user = std::string(buf) + DIR_DELIM + PROJECT_NAME;
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return true;
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}
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//// Linux
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#elif defined(__linux__)
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bool setSystemPaths()
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{
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char buf[BUFSIZ];
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if (!getCurrentExecPath(buf, sizeof(buf))) {
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#ifdef __ANDROID__
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errorstream << "Unable to read bindir "<< std::endl;
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#else
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FATAL_ERROR("Unable to read bindir");
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#endif
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return false;
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}
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pathRemoveFile(buf, '/');
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std::string bindir(buf);
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// Find share directory from these.
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// It is identified by containing the subdirectory "builtin".
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std::list<std::string> trylist;
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std::string static_sharedir = STATIC_SHAREDIR;
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if (static_sharedir != "" && static_sharedir != ".")
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trylist.push_back(static_sharedir);
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trylist.push_back(bindir + DIR_DELIM ".." DIR_DELIM "share"
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DIR_DELIM + PROJECT_NAME);
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trylist.push_back(bindir + DIR_DELIM "..");
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#ifdef __ANDROID__
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trylist.push_back(path_user);
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#endif
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for (std::list<std::string>::const_iterator
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i = trylist.begin(); i != trylist.end(); i++) {
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const std::string &trypath = *i;
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if (!fs::PathExists(trypath) ||
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!fs::PathExists(trypath + DIR_DELIM + "builtin")) {
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warningstream << "system-wide share not found at \""
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<< trypath << "\""<< std::endl;
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continue;
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}
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// Warn if was not the first alternative
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if (i != trylist.begin()) {
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warningstream << "system-wide share found at \""
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<< trypath << "\"" << std::endl;
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}
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path_share = trypath;
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break;
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}
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#ifndef __ANDROID__
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path_user = std::string(getenv("HOME")) + DIR_DELIM "."
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+ PROJECT_NAME;
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#endif
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return true;
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}
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//// Mac OS X
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#elif defined(__APPLE__)
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bool setSystemPaths()
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{
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CFBundleRef main_bundle = CFBundleGetMainBundle();
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CFURLRef resources_url = CFBundleCopyResourcesDirectoryURL(main_bundle);
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char path[PATH_MAX];
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if (CFURLGetFileSystemRepresentation(resources_url,
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TRUE, (UInt8 *)path, PATH_MAX)) {
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path_share = std::string(path);
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} else {
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warningstream << "Could not determine bundle resource path" << std::endl;
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}
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CFRelease(resources_url);
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path_user = std::string(getenv("HOME"))
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+ "/Library/Application Support/"
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+ PROJECT_NAME;
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return true;
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}
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#else
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bool setSystemPaths()
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{
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path_share = STATIC_SHAREDIR;
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path_user = std::string(getenv("HOME")) + DIR_DELIM "."
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+ lowercase(PROJECT_NAME);
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return true;
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}
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#endif
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void migrateCachePath()
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{
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const std::string local_cache_path = path_user + DIR_DELIM + "cache";
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// Delete tmp folder if it exists (it only ever contained
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// a temporary ogg file, which is no longer used).
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if (fs::PathExists(local_cache_path + DIR_DELIM + "tmp"))
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fs::RecursiveDelete(local_cache_path + DIR_DELIM + "tmp");
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// Bail if migration impossible
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if (path_cache == local_cache_path || !fs::PathExists(local_cache_path)
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|| fs::PathExists(path_cache)) {
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return;
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}
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if (!fs::Rename(local_cache_path, path_cache)) {
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errorstream << "Failed to migrate local cache path "
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"to system path!" << std::endl;
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}
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}
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void initializePaths()
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{
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#if RUN_IN_PLACE
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char buf[BUFSIZ];
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infostream << "Using relative paths (RUN_IN_PLACE)" << std::endl;
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bool success =
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getCurrentExecPath(buf, sizeof(buf)) ||
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getExecPathFromProcfs(buf, sizeof(buf));
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if (success) {
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pathRemoveFile(buf, DIR_DELIM_CHAR);
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std::string execpath(buf);
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path_share = execpath + DIR_DELIM "..";
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path_user = execpath + DIR_DELIM "..";
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if (detectMSVCBuildDir(execpath)) {
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path_share += DIR_DELIM "..";
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path_user += DIR_DELIM "..";
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}
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} else {
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errorstream << "Failed to get paths by executable location, "
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"trying cwd" << std::endl;
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if (!getCurrentWorkingDir(buf, sizeof(buf)))
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FATAL_ERROR("Ran out of methods to get paths");
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size_t cwdlen = strlen(buf);
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if (cwdlen >= 1 && buf[cwdlen - 1] == DIR_DELIM_CHAR) {
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cwdlen--;
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buf[cwdlen] = '\0';
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}
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if (cwdlen >= 4 && !strcmp(buf + cwdlen - 4, DIR_DELIM "bin"))
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pathRemoveFile(buf, DIR_DELIM_CHAR);
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std::string execpath(buf);
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path_share = execpath;
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path_user = execpath;
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}
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path_cache = path_user + DIR_DELIM + "cache";
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#else
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infostream << "Using system-wide paths (NOT RUN_IN_PLACE)" << std::endl;
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if (!setSystemPaths())
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errorstream << "Failed to get one or more system-wide path" << std::endl;
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// Initialize path_cache
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// First try $XDG_CACHE_HOME/PROJECT_NAME
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const char *cache_dir = getenv("XDG_CACHE_HOME");
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const char *home_dir = getenv("HOME");
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if (cache_dir) {
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path_cache = std::string(cache_dir) + DIR_DELIM + PROJECT_NAME;
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} else if (home_dir) {
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// Then try $HOME/.cache/PROJECT_NAME
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path_cache = std::string(home_dir) + DIR_DELIM + ".cache"
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+ DIR_DELIM + PROJECT_NAME;
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} else {
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// If neither works, use $PATH_USER/cache
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path_cache = path_user + DIR_DELIM + "cache";
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}
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// Migrate cache folder to new location if possible
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migrateCachePath();
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#endif
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infostream << "Detected share path: " << path_share << std::endl;
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infostream << "Detected user path: " << path_user << std::endl;
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infostream << "Detected cache path: " << path_cache << std::endl;
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#ifdef USE_GETTEXT
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bool found_localedir = false;
|
|
# ifdef STATIC_LOCALEDIR
|
|
if (STATIC_LOCALEDIR[0] && fs::PathExists(STATIC_LOCALEDIR)) {
|
|
found_localedir = true;
|
|
path_locale = STATIC_LOCALEDIR;
|
|
infostream << "Using locale directory " << STATIC_LOCALEDIR << std::endl;
|
|
} else {
|
|
path_locale = getDataPath("locale");
|
|
if (fs::PathExists(path_locale)) {
|
|
found_localedir = true;
|
|
infostream << "Using in-place locale directory " << path_locale
|
|
<< " even though a static one was provided "
|
|
<< "(RUN_IN_PLACE or CUSTOM_LOCALEDIR)." << std::endl;
|
|
}
|
|
}
|
|
# else
|
|
path_locale = getDataPath("locale");
|
|
if (fs::PathExists(path_locale)) {
|
|
found_localedir = true;
|
|
}
|
|
# endif
|
|
if (!found_localedir) {
|
|
warningstream << "Couldn't find a locale directory!" << std::endl;
|
|
}
|
|
#endif // USE_GETTEXT
|
|
}
|
|
|
|
|
|
|
|
void setXorgClassHint(const video::SExposedVideoData &video_data,
|
|
const std::string &name)
|
|
{
|
|
#ifdef XORG_USED
|
|
if (video_data.OpenGLLinux.X11Display == NULL)
|
|
return;
|
|
|
|
XClassHint *classhint = XAllocClassHint();
|
|
classhint->res_name = (char *)name.c_str();
|
|
classhint->res_class = (char *)name.c_str();
|
|
|
|
XSetClassHint((Display *)video_data.OpenGLLinux.X11Display,
|
|
video_data.OpenGLLinux.X11Window, classhint);
|
|
XFree(classhint);
|
|
#endif
|
|
}
|
|
|
|
|
|
////
|
|
//// Video/Display Information (Client-only)
|
|
////
|
|
|
|
#ifndef SERVER
|
|
|
|
static irr::IrrlichtDevice *device;
|
|
|
|
void initIrrlicht(irr::IrrlichtDevice *device_)
|
|
{
|
|
device = device_;
|
|
}
|
|
|
|
v2u32 getWindowSize()
|
|
{
|
|
return device->getVideoDriver()->getScreenSize();
|
|
}
|
|
|
|
|
|
std::vector<core::vector3d<u32> > getSupportedVideoModes()
|
|
{
|
|
IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
|
|
sanity_check(nulldevice != NULL);
|
|
|
|
std::vector<core::vector3d<u32> > mlist;
|
|
video::IVideoModeList *modelist = nulldevice->getVideoModeList();
|
|
|
|
u32 num_modes = modelist->getVideoModeCount();
|
|
for (u32 i = 0; i != num_modes; i++) {
|
|
core::dimension2d<u32> mode_res = modelist->getVideoModeResolution(i);
|
|
s32 mode_depth = modelist->getVideoModeDepth(i);
|
|
mlist.push_back(core::vector3d<u32>(mode_res.Width, mode_res.Height, mode_depth));
|
|
}
|
|
|
|
nulldevice->drop();
|
|
|
|
return mlist;
|
|
}
|
|
|
|
std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers()
|
|
{
|
|
std::vector<irr::video::E_DRIVER_TYPE> drivers;
|
|
|
|
for (int i = 0; i != irr::video::EDT_COUNT; i++) {
|
|
if (irr::IrrlichtDevice::isDriverSupported((irr::video::E_DRIVER_TYPE)i))
|
|
drivers.push_back((irr::video::E_DRIVER_TYPE)i);
|
|
}
|
|
|
|
return drivers;
|
|
}
|
|
|
|
const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type)
|
|
{
|
|
static const char *driver_ids[] = {
|
|
"null",
|
|
"software",
|
|
"burningsvideo",
|
|
"direct3d8",
|
|
"direct3d9",
|
|
"opengl",
|
|
"ogles1",
|
|
"ogles2",
|
|
};
|
|
|
|
return driver_ids[type];
|
|
}
|
|
|
|
|
|
const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type)
|
|
{
|
|
static const char *driver_names[] = {
|
|
"NULL Driver",
|
|
"Software Renderer",
|
|
"Burning's Video",
|
|
"Direct3D 8",
|
|
"Direct3D 9",
|
|
"OpenGL",
|
|
"OpenGL ES1",
|
|
"OpenGL ES2",
|
|
};
|
|
|
|
return driver_names[type];
|
|
}
|
|
|
|
# ifndef __ANDROID__
|
|
# ifdef XORG_USED
|
|
|
|
static float calcDisplayDensity()
|
|
{
|
|
const char *current_display = getenv("DISPLAY");
|
|
|
|
if (current_display != NULL) {
|
|
Display *x11display = XOpenDisplay(current_display);
|
|
|
|
if (x11display != NULL) {
|
|
/* try x direct */
|
|
float dpi_height = floor(DisplayHeight(x11display, 0) /
|
|
(DisplayHeightMM(x11display, 0) * 0.039370) + 0.5);
|
|
float dpi_width = floor(DisplayWidth(x11display, 0) /
|
|
(DisplayWidthMM(x11display, 0) * 0.039370) + 0.5);
|
|
|
|
XCloseDisplay(x11display);
|
|
|
|
return std::max(dpi_height,dpi_width) / 96.0;
|
|
}
|
|
}
|
|
|
|
/* return manually specified dpi */
|
|
return g_settings->getFloat("screen_dpi")/96.0;
|
|
}
|
|
|
|
|
|
float getDisplayDensity()
|
|
{
|
|
static float cached_display_density = calcDisplayDensity();
|
|
return cached_display_density;
|
|
}
|
|
|
|
|
|
# else // XORG_USED
|
|
float getDisplayDensity()
|
|
{
|
|
return g_settings->getFloat("screen_dpi")/96.0;
|
|
}
|
|
# endif // XORG_USED
|
|
|
|
v2u32 getDisplaySize()
|
|
{
|
|
IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
|
|
|
|
core::dimension2d<u32> deskres = nulldevice->getVideoModeList()->getDesktopResolution();
|
|
nulldevice -> drop();
|
|
|
|
return deskres;
|
|
}
|
|
# endif // __ANDROID__
|
|
#endif // SERVER
|
|
|
|
|
|
////
|
|
//// OS-specific Secure Random
|
|
////
|
|
|
|
#ifdef WIN32
|
|
|
|
bool secure_rand_fill_buf(void *buf, size_t len)
|
|
{
|
|
HCRYPTPROV wctx;
|
|
|
|
if (!CryptAcquireContext(&wctx, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
|
|
return false;
|
|
|
|
CryptGenRandom(wctx, len, (BYTE *)buf);
|
|
CryptReleaseContext(wctx, 0);
|
|
return true;
|
|
}
|
|
|
|
#else
|
|
|
|
bool secure_rand_fill_buf(void *buf, size_t len)
|
|
{
|
|
// N.B. This function checks *only* for /dev/urandom, because on most
|
|
// common OSes it is non-blocking, whereas /dev/random is blocking, and it
|
|
// is exceptionally uncommon for there to be a situation where /dev/random
|
|
// exists but /dev/urandom does not. This guesswork is necessary since
|
|
// random devices are not covered by any POSIX standard...
|
|
FILE *fp = fopen("/dev/urandom", "rb");
|
|
if (!fp)
|
|
return false;
|
|
|
|
bool success = fread(buf, len, 1, fp) == 1;
|
|
|
|
fclose(fp);
|
|
return success;
|
|
}
|
|
|
|
#endif
|
|
|
|
} //namespace porting
|