322ec9ef8b
accounting from kernel (now in PM). Large amount of files in this commit is due to system time problems during development.
69 lines
3.2 KiB
C
69 lines
3.2 KiB
C
/* This table has one slot per process. It contains all the process management
|
|
* information for each process. Among other things, it defines the text, data
|
|
* and stack segments, uids and gids, and various flags. The kernel and file
|
|
* systems have tables that are also indexed by process, with the contents
|
|
* of corresponding slots referring to the same process in all three.
|
|
*/
|
|
|
|
EXTERN struct mproc {
|
|
struct mem_map mp_seg[NR_LOCAL_SEGS]; /* points to text, data, stack */
|
|
char mp_exitstatus; /* storage for status when process exits */
|
|
char mp_sigstatus; /* storage for signal # for killed procs */
|
|
pid_t mp_pid; /* process id */
|
|
pid_t mp_procgrp; /* pid of process group (used for signals) */
|
|
pid_t mp_wpid; /* pid this process is waiting for */
|
|
int mp_parent; /* index of parent process */
|
|
|
|
/* Child user and system times. Accounting done on child exit. */
|
|
clock_t mp_child_utime; /* cumulative user time of children */
|
|
clock_t mp_child_stime; /* cumulative sys time of children */
|
|
|
|
/* Real and effective uids and gids. */
|
|
uid_t mp_realuid; /* process' real uid */
|
|
uid_t mp_effuid; /* process' effective uid */
|
|
gid_t mp_realgid; /* process' real gid */
|
|
gid_t mp_effgid; /* process' effective gid */
|
|
|
|
/* File identification for sharing. */
|
|
ino_t mp_ino; /* inode number of file */
|
|
dev_t mp_dev; /* device number of file system */
|
|
time_t mp_ctime; /* inode changed time */
|
|
|
|
/* Signal handling information. */
|
|
sigset_t mp_ignore; /* 1 means ignore the signal, 0 means don't */
|
|
sigset_t mp_catch; /* 1 means catch the signal, 0 means don't */
|
|
sigset_t mp_sigmask; /* signals to be blocked */
|
|
sigset_t mp_sigmask2; /* saved copy of mp_sigmask */
|
|
sigset_t mp_sigpending; /* pending signals to be handled */
|
|
struct sigaction mp_sigact[_NSIG + 1]; /* as in sigaction(2) */
|
|
vir_bytes mp_sigreturn; /* address of C library __sigreturn function */
|
|
|
|
/* Backwards compatibility for signals. */
|
|
sighandler_t mp_func; /* all sigs vectored to a single user fcn */
|
|
|
|
unsigned mp_flags; /* flag bits */
|
|
vir_bytes mp_procargs; /* ptr to proc's initial stack arguments */
|
|
struct mproc *mp_swapq; /* queue of procs waiting to be swapped in */
|
|
message mp_reply; /* reply message to be sent to one */
|
|
|
|
char mp_name[PROC_NAME_LEN]; /* process name */
|
|
} mproc[NR_PROCS];
|
|
|
|
/* Flag values */
|
|
#define IN_USE 0x001 /* set when 'mproc' slot in use */
|
|
#define WAITING 0x002 /* set by WAIT system call */
|
|
#define ZOMBIE 0x004 /* set by EXIT, cleared by WAIT */
|
|
#define PAUSED 0x008 /* set by PAUSE system call */
|
|
#define ALARM_ON 0x010 /* set when SIGALRM timer started */
|
|
#define SEPARATE 0x020 /* set if file is separate I & D space */
|
|
#define TRACED 0x040 /* set if process is to be traced */
|
|
#define STOPPED 0x080 /* set if process stopped for tracing */
|
|
#define SIGSUSPENDED 0x100 /* set by SIGSUSPEND system call */
|
|
#define REPLY 0x200 /* set if a reply message is pending */
|
|
#define ONSWAP 0x400 /* set if data segment is swapped out */
|
|
#define SWAPIN 0x800 /* set if on the "swap this in" queue */
|
|
#define DONT_SWAP 0x1000 /* never swap out this process */
|
|
|
|
#define NIL_MPROC ((struct mproc *) 0)
|
|
|