minix/servers/pm/const.h
2005-08-05 10:45:54 +00:00

22 lines
762 B
C

/* Constants used by the Process Manager. */
#define NO_MEM ((phys_clicks) 0) /* returned by alloc_mem() with mem is up */
#if (CHIP == INTEL && _WORD_SIZE == 2)
/* These definitions are used in size_ok and are not needed for 386.
* The 386 segment granularity is 1 for segments smaller than 1M and 4096
* above that.
*/
#define PAGE_SIZE 16 /* how many bytes in a page (s.b.HCLICK_SIZE)*/
#define MAX_PAGES 4096 /* how many pages in the virtual addr space */
#endif
#define NR_PIDS 30000 /* process ids range from 0 to NR_PIDS-1.
* (magic constant: some old applications use
* a 'short' instead of pid_t.)
*/
#define PM_PID 0 /* PM's process id number */
#define INIT_PID 1 /* INIT's process id number */