58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
#include <sys/select.h>
|
|
#include <minix/safecopies.h>
|
|
|
|
/* This is the per-process information. A slot is reserved for each potential
|
|
* process. Thus NR_PROCS must be the same as in the kernel. It is not
|
|
* possible or even necessary to tell when a slot is free here.
|
|
*/
|
|
EXTERN struct fproc {
|
|
unsigned fp_flags;
|
|
|
|
mode_t fp_umask; /* mask set by umask system call */
|
|
|
|
struct vnode *fp_wd; /* working directory */
|
|
struct vnode *fp_rd; /* root directory */
|
|
|
|
struct filp *fp_filp[OPEN_MAX];/* the file descriptor table */
|
|
|
|
fd_set fp_filp_inuse; /* which fd's are in use? */
|
|
uid_t fp_realuid; /* real user id */
|
|
uid_t fp_effuid; /* effective user id */
|
|
gid_t fp_realgid; /* real group id */
|
|
gid_t fp_effgid; /* effective group id */
|
|
dev_t fp_tty; /* major/minor of controlling tty */
|
|
int fp_fd; /* place to save fd if rd/wr can't finish */
|
|
char *fp_buffer; /* place to save buffer if rd/wr can't finish*/
|
|
int fp_nbytes; /* place to save bytes if rd/wr can't finish */
|
|
int fp_cum_io_partial; /* partial byte count if rd/wr can't finish */
|
|
char fp_suspended; /* set to indicate process hanging */
|
|
char fp_revived; /* set to indicate process being revived */
|
|
int fp_task; /* which task is proc suspended on */
|
|
|
|
endpoint_t fp_ioproc; /* proc no. in suspended-on i/o message */
|
|
cp_grant_id_t fp_grant; /* revoke this grant on unsuspend if > -1 */
|
|
|
|
char fp_sesldr; /* true if proc is a session leader */
|
|
char fp_execced; /* true if proc has exec()ced after fork */
|
|
pid_t fp_pid; /* process id */
|
|
|
|
fd_set fp_cloexec_set; /* bit map for POSIX Table 6-2 FD_CLOEXEC */
|
|
endpoint_t fp_endpoint; /* kernel endpoint number of this process */
|
|
} fproc[NR_PROCS];
|
|
|
|
/* fp_flags */
|
|
#define NO_FLAGS 0
|
|
#define SUSP_REOPEN 1 /* Process is suspended until the reopens are
|
|
* completed (after the restart of a driver).
|
|
*/
|
|
|
|
/* Field values. */
|
|
#define NOT_SUSPENDED 0 /* process is not suspended on pipe or task */
|
|
#define SUSPENDED 1 /* process is suspended on pipe or task */
|
|
#define NOT_REVIVING 0 /* process is not being revived */
|
|
#define REVIVING 1 /* process is being revived from suspension */
|
|
#define PID_FREE 0 /* process slot free */
|
|
|
|
/* Check is process number is acceptable - includes system processes. */
|
|
#define isokprocnr(n) ((unsigned)((n)+NR_TASKS) < NR_PROCS + NR_TASKS)
|
|
|