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/*
Minetest-c55
Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
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.
*/
/*
Random portability stuff
See comments in porting.h
*/
#include "porting.h"
#include "config.h"
#include "debug.h"
#include "filesys.h"
#ifdef __APPLE__
#include "CoreFoundation/CoreFoundation.h"
#endif
namespace porting
{
/*
Signal handler (grabs Ctrl-C on POSIX systems)
*/
bool g_killed = false;
bool * signal_handler_killstatus(void)
{
return &g_killed;
}
#if !defined(_WIN32) // POSIX
#include <signal.h>
void sigint_handler(int sig)
{
if(g_killed == false)
{
dstream<<DTIME<<"INFO: sigint_handler(): "
<<"Ctrl-C pressed, shutting down."<<std::endl;
dstream<<DTIME<<"INFO: sigint_handler(): "
<<"Printing debug stacks"<<std::endl;
debug_stacks_print();
g_killed = true;
}
else
{
(void)signal(SIGINT, SIG_DFL);
}
}
void signal_handler_init(void)
{
dstream<<"signal_handler_init()"<<std::endl;
(void)signal(SIGINT, sigint_handler);
}
#else // _WIN32
void signal_handler_init(void)
{
// No-op
}
#endif
/*
Path mangler
*/
std::string path_data = "../data";
std::string path_userdata = "../";
void pathRemoveFile(char *path, char delim)
{
// Remove filename and path delimiter
int i;
for(i = strlen(path)-1; i>=0; i--)
{
if(path[i] == delim)
break;
}
path[i] = 0;
}
void initializePaths()
{
#ifdef RUN_IN_PLACE
/*
Use relative paths if RUN_IN_PLACE
*/
dstream<<"Using relative paths (RUN_IN_PLACE)"<<std::endl;
/*
Windows
*/
#if defined(_WIN32)
#include <windows.h>
const DWORD buflen = 1000;
char buf[buflen];
DWORD len;
// Find path of executable and set path_data relative to it
len = GetModuleFileName(GetModuleHandle(NULL), buf, buflen);
assert(len < buflen);
pathRemoveFile(buf, '\\');
// Use "./bin/../data"
path_data = std::string(buf) + "/../data";
// Use "./bin/../"
path_userdata = std::string(buf) + "/../";
/*
Linux
*/
#elif defined(linux)
#include <unistd.h>
char buf[BUFSIZ];
memset(buf, 0, BUFSIZ);
// Get path to executable
assert(readlink("/proc/self/exe", buf, BUFSIZ-1) != -1);
pathRemoveFile(buf, '/');
// Use "./bin/../data"
path_data = std::string(buf) + "/../data";
// Use "./bin/../"
path_userdata = std::string(buf) + "/../";
/*
OS X
*/
#elif defined(__APPLE__)
//TODO: Get path of executable. This assumes working directory is bin/
dstream<<"WARNING: Relative path not properly supported on OS X"
<<std::endl;
path_data = std::string("../data");
path_userdata = std::string("../");
#endif
#else // RUN_IN_PLACE
/*
Use platform-specific paths otherwise
*/
dstream<<"Using system-wide paths (NOT RUN_IN_PLACE)"<<std::endl;
/*
Windows
*/
#if defined(_WIN32)
#include <windows.h>
const DWORD buflen = 1000;
char buf[buflen];
DWORD len;
// Find path of executable and set path_data relative to it
len = GetModuleFileName(GetModuleHandle(NULL), buf, buflen);
assert(len < buflen);
pathRemoveFile(buf, '\\');
// Use "./bin/../data"
path_data = std::string(buf) + "/../data";
//path_data = std::string(buf) + "/../share/" + APPNAME;
// Use "C:\Documents and Settings\user\Application Data\<APPNAME>"
len = GetEnvironmentVariable("APPDATA", buf, buflen);
assert(len < buflen);
path_userdata = std::string(buf) + "/" + APPNAME;
/*
Linux
*/
#elif defined(linux)
#include <unistd.h>
char buf[BUFSIZ];
memset(buf, 0, BUFSIZ);
// Get path to executable
assert(readlink("/proc/self/exe", buf, BUFSIZ-1) != -1);
pathRemoveFile(buf, '/');
path_data = std::string(buf) + "/../share/" + APPNAME;
//path_data = std::string(INSTALL_PREFIX) + "/share/" + APPNAME;
if (!fs::PathExists(path_data)) {
dstream<<"WARNING: data path " << path_data << " not found!";
path_data = std::string(buf) + "/../data";
dstream<<" Trying " << path_data << std::endl;
}
path_userdata = std::string(getenv("HOME")) + "/." + APPNAME;
/*
OS X
*/
#elif defined(__APPLE__)
#include <unistd.h>
// Code based on
// http://stackoverflow.com/questions/516200/relative-paths-not-working-in-xcode-c
CFBundleRef main_bundle = CFBundleGetMainBundle();
CFURLRef resources_url = CFBundleCopyResourcesDirectoryURL(main_bundle);
char path[PATH_MAX];
if(CFURLGetFileSystemRepresentation(resources_url, TRUE, (UInt8 *)path, PATH_MAX))
{
dstream<<"Bundle resource path: "<<path<<std::endl;
//chdir(path);
path_data = std::string(path) + "/data";
}
else
{
// error!
dstream<<"WARNING: Could not determine bundle resource path"<<std::endl;
}
CFRelease(resources_url);
path_userdata = std::string(getenv("HOME")) + "/Library/Application Support/" + APPNAME;
#endif
#endif // RUN_IN_PLACE
dstream<<"path_data = "<<path_data<<std::endl;
dstream<<"path_userdata = "<<path_userdata<<std::endl;
}
} //namespace porting
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