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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 (at your option) 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#define FORBIDDEN_SYMBOL_EXCEPTION_getenv
#define FORBIDDEN_SYMBOL_EXCEPTION_mkdir
#define FORBIDDEN_SYMBOL_EXCEPTION_exit
#define FORBIDDEN_SYMBOL_EXCEPTION_unistd_h
#define FORBIDDEN_SYMBOL_EXCEPTION_time_h //On IRIX, sys/stat.h includes sys/time.h
#include "common/scummsys.h"
#ifdef POSIX
#include "backends/platform/sdl/posix/posix.h"
#include "backends/saves/posix/posix-saves.h"
#include "backends/fs/posix/posix-fs-factory.h"
#include "backends/taskbar/unity/unity-taskbar.h"
#include <errno.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <unistd.h>
namespace {
/**
* Assure that a directory path exists.
*
* @param dir The path which is required to exist.
* @param prefix An (optional) prefix which should not be created if non existent.
* prefix is prepended to dir if supplied.
* @return true in case the directoy exists (or was created), false otherwise.
*/
bool assureDirectoryExists(const Common::String &dir, const char *prefix = nullptr) {
struct stat sb;
// Check whether the prefix exists if one is supplied.
if (prefix) {
if (stat(prefix, &sb) != 0) {
return false;
} else if (!S_ISDIR(sb.st_mode)) {
return false;
}
}
// Obtain absolute path.
Common::String path;
if (prefix) {
path = prefix;
path += '/';
path += dir;
} else {
path = dir;
}
path = Common::normalizePath(path, '/');
const Common::String::iterator end = path.end();
Common::String::iterator cur = path.begin();
if (*cur == '/')
++cur;
do {
if (cur + 1 != end) {
if (*cur != '/') {
continue;
}
// It is kind of ugly and against the purpose of Common::String to
// insert 0s inside, but this is just for a local string and
// simplifies the code a lot.
*cur = '\0';
}
if (mkdir(path.c_str(), 0755) != 0) {
if (errno == EEXIST) {
if (stat(path.c_str(), &sb) != 0) {
return false;
} else if (!S_ISDIR(sb.st_mode)) {
return false;
}
} else {
return false;
}
}
*cur = '/';
} while (cur++ != end);
return true;
}
} // End of anonymous namespace
OSystem_POSIX::OSystem_POSIX(Common::String baseConfigName)
:
_baseConfigName(baseConfigName) {
}
void OSystem_POSIX::init() {
// Initialze File System Factory
_fsFactory = new POSIXFilesystemFactory();
#if defined(USE_TASKBAR) && defined(USE_UNITY)
// Initialize taskbar manager
_taskbarManager = new UnityTaskbarManager();
#endif
// Invoke parent implementation of this method
OSystem_SDL::init();
}
void OSystem_POSIX::initBackend() {
// Create the savefile manager
if (_savefileManager == 0)
_savefileManager = new POSIXSaveFileManager();
// Invoke parent implementation of this method
OSystem_SDL::initBackend();
#if defined(USE_TASKBAR) && defined(USE_UNITY)
// Register the taskbar manager as an event source (this is necessary for the glib event loop to be run)
_eventManager->getEventDispatcher()->registerSource((UnityTaskbarManager *)_taskbarManager, false);
#endif
}
bool OSystem_POSIX::hasFeature(Feature f) {
if (f == kFeatureDisplayLogFile)
return true;
return OSystem_SDL::hasFeature(f);
}
Common::String OSystem_POSIX::getDefaultConfigFileName() {
Common::String configFile;
// On POSIX type systems, by default we store the config file inside
// to the HOME directory of the user.
const char *home = getenv("HOME");
if (home != NULL && (strlen(home) + 1 + _baseConfigName.size()) < MAXPATHLEN) {
configFile = Common::String::format("%s/%s", home, _baseConfigName.c_str());
} else {
configFile = _baseConfigName;
}
return configFile;
}
Common::WriteStream *OSystem_POSIX::createLogFile() {
// Start out by resetting _logFilePath, so that in case
// of a failure, we know that no log file is open.
_logFilePath.clear();
const char *prefix = nullptr;
Common::String logFile;
#ifdef MACOSX
prefix = getenv("HOME");
if (prefix == nullptr) {
return 0;
}
logFile = "Library/Logs";
#elif SAMSUNGTV
prefix = nullptr;
logFile = "/mtd_ram";
#else
prefix = getenv("HOME");
if (prefix == nullptr) {
return 0;
}
logFile = ".scummvm/logs";
#endif
if (!assureDirectoryExists(logFile, prefix)) {
return 0;
}
if (prefix) {
logFile = Common::String::format("%s/%s", prefix, logFile.c_str());
}
logFile += "/scummvm.log";
Common::FSNode file(logFile);
Common::WriteStream *stream = file.createWriteStream();
if (stream)
_logFilePath = logFile;
return stream;
}
bool OSystem_POSIX::displayLogFile() {
if (_logFilePath.empty())
return false;
// FIXME: This may not work perfectly when in fullscreen mode.
// On my system it drops from fullscreen without ScummVM noticing,
// so the next Alt-Enter does nothing, going from windowed to windowed.
// (wjp, 20110604)
pid_t pid = fork();
if (pid < 0) {
// failed to fork
return false;
} else if (pid == 0) {
// Try xdg-open first
execlp("xdg-open", "xdg-open", _logFilePath.c_str(), (char *)0);
// If we're here, that clearly failed.
// TODO: We may also want to try detecting the case where
// xdg-open is successfully executed but returns an error code.
// Try xterm+less next
execlp("xterm", "xterm", "-e", "less", _logFilePath.c_str(), (char *)0);
// TODO: If less does not exist we could fall back to 'more'.
// However, we'll have to use 'xterm -hold' for that to prevent the
// terminal from closing immediately (for short log files) or
// unexpectedly.
exit(127);
}
int status;
// Wait for viewer to close.
// (But note that xdg-open may have spawned a viewer in the background.)
// FIXME: We probably want the viewer to always open in the background.
// This may require installing a SIGCHLD handler.
pid = waitpid(pid, &status, 0);
if (pid < 0) {
// Probably nothing sensible to do in this error situation
return false;
}
return WIFEXITED(status) && WEXITSTATUS(status) == 0;
}
#endif
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