macemu/BasiliskII/src/Unix/xpram_unix.cpp

74 lines
1.7 KiB
C++

/*
* xpram_unix.cpp - XPRAM handling, Unix specific stuff
*
* Basilisk II (C) 1997-2008 Christian Bauer
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "sysdeps.h"
#include <string>
using std::string;
#include "xpram.h"
// XPRAM file name, set by LoadPrefs() in prefs_unix.cpp
string xpram_name;
/*
* Load XPRAM from settings file
*/
void LoadXPRAM(const char* vmdir){
if(vmdir){
#if POWERPC_ROM
xpram_name = string(vmdir) + "/nvram";
#else
xpram_name = string(vmdir) + "/xpram";
#endif
}
assert(!xpram_name.empty());
int fd;
if ((fd = open(xpram_name.c_str(), O_RDONLY)) >= 0) {
read(fd, XPRAM, XPRAM_SIZE);
close(fd);
}
}
/*
* Save XPRAM to settings file
*/
void SaveXPRAM(void){
assert(!xpram_name.empty());
int fd;
if ((fd = open(xpram_name.c_str(), O_WRONLY | O_CREAT, 0666)) >= 0) {
write(fd, XPRAM, XPRAM_SIZE);
close(fd);
}
}
/*
* Delete PRAM file
*/
void ZapPRAM(void){
// Delete file
assert(!xpram_name.empty());
unlink(xpram_name.c_str());
}