105 lines
1.7 KiB
C
105 lines
1.7 KiB
C
|
/*
|
||
|
|
* nix.c
|
||
|
|
*
|
||
|
|
* System interface for *nix systems.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include "config.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
#define DOTDIR ".gnuboy"
|
||
|
|
|
||
|
|
#ifndef HAVE_USLEEP
|
||
|
|
static void my_usleep(unsigned int us)
|
||
|
|
{
|
||
|
|
struct timeval tv;
|
||
|
|
tv.tv_sec = 0;
|
||
|
|
tv.tv_usec = us;
|
||
|
|
select(0, NULL, NULL, NULL, &tv);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void *sys_timer()
|
||
|
|
{
|
||
|
|
struct timeval *tv;
|
||
|
|
|
||
|
|
tv = malloc(sizeof(struct timeval));
|
||
|
|
gettimeofday(tv, NULL);
|
||
|
|
return tv;
|
||
|
|
}
|
||
|
|
|
||
|
|
int sys_elapsed(struct timeval *prev)
|
||
|
|
{
|
||
|
|
struct timeval tv;
|
||
|
|
int secs, usecs;
|
||
|
|
|
||
|
|
gettimeofday(&tv, NULL);
|
||
|
|
secs = tv.tv_sec - prev->tv_sec;
|
||
|
|
usecs = tv.tv_usec - prev->tv_usec;
|
||
|
|
*prev = tv;
|
||
|
|
if (!secs) return usecs;
|
||
|
|
return 1000000 + usecs;
|
||
|
|
}
|
||
|
|
|
||
|
|
void sys_sleep(int us)
|
||
|
|
{
|
||
|
|
if (us <= 0) return;
|
||
|
|
#ifdef HAVE_USLEEP
|
||
|
|
usleep(us);
|
||
|
|
#else
|
||
|
|
my_usleep(us);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void sys_checkdir(char *path, int wr)
|
||
|
|
{
|
||
|
|
char *p;
|
||
|
|
if (access(path, X_OK | (wr ? W_OK : 0)))
|
||
|
|
{
|
||
|
|
if (!access(path, F_OK))
|
||
|
|
die("cannot access %s: %s\n", path, strerror(errno));
|
||
|
|
p = strrchr(path, '/');
|
||
|
|
if (!p) die("descended to root trying to create dirs\n");
|
||
|
|
*p = 0;
|
||
|
|
sys_checkdir(path, wr);
|
||
|
|
*p = '/';
|
||
|
|
if (mkdir(path, 0777))
|
||
|
|
die("cannot create %s: %s\n", path, strerror(errno));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void sys_initpath()
|
||
|
|
{
|
||
|
|
char *buf, *home = getenv("HOME");
|
||
|
|
if (!home)
|
||
|
|
{
|
||
|
|
buf = ".";
|
||
|
|
rc_setvar("rcpath", 1, &buf);
|
||
|
|
rc_setvar("savedir", 1, &buf);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
buf = malloc(strlen(home) + strlen(DOTDIR) + 8);
|
||
|
|
sprintf(buf, "%s/" DOTDIR ":.", home);
|
||
|
|
rc_setvar("rcpath", 1, &buf);
|
||
|
|
sprintf(buf, "%s/" DOTDIR "/saves" , home);
|
||
|
|
rc_setvar("savedir", 1, &buf);
|
||
|
|
free(buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
void sys_sanitize(char *s)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|