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