mirror of
https://github.com/autc04/Retro68.git
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131 lines
2.7 KiB
C
131 lines
2.7 KiB
C
/*
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Copyright 2015 Wolfgang Thaller.
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This file is part of Retro68.
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Retro68 is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Retro68 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 General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <MacMemory.h>
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#include <Processes.h>
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int isatty(int fd) { return fd >= 0 && fd <= 2; }
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void *sbrk(long increment)
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{
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Debugger();
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return NewPtrClear(increment);
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}
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void _exit(int status)
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{
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//if(status != 0)
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// Debugger();
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ExitToShell();
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for(;;)
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;
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}
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ssize_t _consolewrite(int fd, const void *buf, size_t count);
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ssize_t _consoleread(int fd, void *buf, size_t count);
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ssize_t write(int fd, const void *buf, size_t count)
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{
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return _consolewrite(fd,buf,count);
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}
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ssize_t read(int fd, void *buf, size_t count)
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{
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return _consoleread(fd,buf,count);
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}
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int open(const char* name, int flags, mode_t mode)
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{
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return -1;
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}
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int close(int fd)
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{
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return -1;
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}
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int fstat(int fd, struct stat *buf)
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{
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return -1;
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}
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off_t lseek(int fd, off_t offset, int whence)
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{
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return (off_t) -1;
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}
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int kill(pid_t pid, int sig)
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{
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if(pid == 42)
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_exit(42);
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else
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return -1;
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}
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pid_t getpid(void)
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{
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return 42;
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}
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int gettimeofday(struct timeval *tp, void *__tz)
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{
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/* Classic MacOS's GetDateTime function returns an integer.
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* TickCount() has a slightly higher resolution, but is independend of the real-time clock.
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*/
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unsigned long secs;
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GetDateTime(&secs);
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unsigned long ticks = TickCount();
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static unsigned long savedTicks = 0, savedSecs = 0;
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if(!savedSecs)
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{
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savedTicks = ticks;
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savedSecs = secs;
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}
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else
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{
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unsigned long elapsedTicks = ticks - savedTicks;
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unsigned long elapsedSecs = secs - savedSecs;
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unsigned long expectedTicks = elapsedSecs * 60 + elapsedSecs * 3 / 20;
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if(expectedTicks > elapsedTicks)
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savedTicks = ticks;
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else
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savedTicks += expectedTicks;
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savedSecs = secs;
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}
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if(tp)
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{
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tp->tv_sec = secs - 86400 * (365 * 66 + 66/4);
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tp->tv_usec = (ticks - savedTicks) * 20000000 / 2003;
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}
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}
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