warp/util.h

   1 /* Header: util.h,v 7.0 86/10/08 15:14:37 lwall Exp */
   2
   3 /* Log: util.h,v
   4  * Revision 7.0  86/10/08  15:14:37  lwall
   5  * Split into separate files.  Added amoebas and pirates.
   6  *
   7  */
   8
   9 #include <time.h>
  10 #define __UNCONST(a) ((void *)(unsigned long)(const void *)(a))
  11
  12 #define RANDRAND 1152921504606846976.0 /* that's 2**60 */
  13 #define HALFRAND 0x40000000 /* that's 2**30 */
  14 #define myrand() (int)random()
  15 #define rand_mod(m) ((myrand() / 37) % (m)) /* pick number in 0..m-1 */
  16 /*
  17  * The reason for the /37 above is that our random number generator yields
  18  * successive evens and odds, for some reason.  This makes strange star maps.
  19  */
  20
  21     /* we get fractions of seconds from calling ftime on timebuf */
  22
  23 extern struct timespec timebuf;
  24 #define roundsleep(x) (clock_gettime(CLOCK_REALTIME, &timebuf),sleep(timebuf.tv_nsec > (500 * 1000 * 1000) ?x+1:x))
  25
  26 #define waiting 0
  27
  28 #ifdef NOTDEF
  29 EXT int len_last_line_got INIT(0);
  30                         /* strlen of some_buf after */
  31                         /*  some_buf = get_a_line(bufptr,buffersize,fp) */
  32 #endif
  33
  34 #ifdef NOTDEF
  35 /* is the string for makedir a directory name or a filename? */
  36
  37 #define MD_DIR 0
  38 #define MD_FILE 1
  39 #endif
  40
  41 void util_init(void);
  42 void movc3(int, char *, char *);
  43 __dead void no_can_do(const char *);
  44 int exdis(int);
  45 void *safemalloc(size_t size);
  46 char *safecpy(char *, const char *, size_t);
  47 char *cpytill(char *, const char *, int);
  48 char *instr(const char *, const char *);
  49 #ifdef SETUIDGID
  50 int eaccess(const char *, mode_t);
  51 #endif
  52 __dead void prexit(const char *);
  53 char *savestr(const char *);
  54 char *getval(const char *, const char *);