![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to proc.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 3BSD / sys / h|
Return to proc.h CVS log | Up to [CSRG BSD Unix] / 3BSD / sys / h |
1.1 root 1: /* proc.h 2.1 1/5/80 */
2:
3: /*
4: * One structure allocated per active
5: * process. It contains all data needed
6: * about the process while the
7: * process may be swapped out.
8: * Other per process data (user.h)
9: * is swapped with the process.
10: */
11: struct proc
12: {
13: char p_stat;
14: char p_slptime; /* time since last block */
15: short p_flag;
16: short p_cpu; /* cpu usage for scheduling */
17: short p_time; /* resident time for scheduling */
18: char p_pri; /* priority, negative is high */
19: char p_nice; /* nice for cpu usage */
20: short p_sig; /* signals pending to this process */
21: short p_uid; /* user id, used to direct tty signals */
22: short p_pgrp; /* name of process group leader */
23: short p_pid; /* unique process id */
24: short p_ppid; /* process id of parent */
25: short p_addr[UPAGES]; /* page table entries of u-area */
26: short p_poip; /* count of page outs in progress */
27: short p_szpt; /* copy of page table size */
28: size_t p_tsize; /* size of text (clicks) */
29: size_t p_dsize; /* size of data space (clicks) */
30: size_t p_ssize; /* copy of stack size (clicks) */
31: size_t p_rssize; /* current resident set size in clicks */
32: size_t p_swrss; /* resident set size before last swap */
33: swblk_t p_swaddr; /* disk address of u area when swapped */
34: caddr_t p_wchan; /* event process is awaiting */
35: struct text *p_textp; /* pointer to text structure */
36: struct proc *p_link; /* linked list of running processes */
37: int p_clktim; /* time to alarm clock signal */
38: struct pte *p_p0br; /* page table base P0BR */
39: struct proc *p_xlink; /* linked list of procs sharing same text */
40: short p_faults; /* faults in last second */
41: short p_aveflt; /* average of p_faults into past */
42: short p_ndx; /* proc index for memall (because of vfork) */
43: };
44:
45: #ifdef KERNEL
46: extern struct proc proc[]; /* the proc table itself */
47:
48: struct proc *runq; /* pointer to linked list of running processes */
49: #endif
50:
51: /* stat codes */
52: #define SSLEEP 1 /* awaiting an event */
53: #define SWAIT 2 /* (abandoned state) */
54: #define SRUN 3 /* running */
55: #define SIDL 4 /* intermediate state in process creation */
56: #define SZOMB 5 /* intermediate state in process termination */
57: #define SSTOP 6 /* process being traced */
58:
59: /* flag codes */
60: #define SLOAD 0x0001 /* in core */
61: #define SSYS 0x0002 /* swapper or pager process */
62: #define SLOCK 0x0004 /* process being swapped out */
63: #define SSWAP 0x0008 /* save area flag */
64: #define STRC 0x0010 /* process is being traced */
65: #define SWTED 0x0020 /* another tracing flag */
66: #define SULOCK 0x0040 /* user settable lock in core */
67: #define SPAGE 0x0080 /* process in page wait state */
68: #define SKEEP 0x0100 /* another flag to prevent swap out */
69: #define SDLYU 0x0200 /* delayed unlock of pages */
70: #define SWEXIT 0x0400 /* working on exiting */
71: #define SUNUSED 0x0800 /* used to be page out in progress */
72: #define SVFORK 0x1000 /* process resulted from vfork() */
73: #define SVFDONE 0x2000 /* another vfork flag */
74: #define SNOVM 0x4000 /* no vm, parent in a vfork() */
75: #define SPAGI 0x8000 /* init data space on demand, from inode */
76:
77: /*
78: * parallel proc structure
79: * to replace part with times
80: * to be passed to parent process
81: * in ZOMBIE state.
82: */
83: struct xproc
84: {
85: char xp_stat;
86: char xp_slptime;
87: short xp_flag;
88: short xp_cpu; /* cpu usage for scheduling */
89: short xp_time; /* resident time for scheduling */
90: char xp_pri; /* priority, negative is high */
91: char xp_nice; /* nice for cpu usage */
92: short xp_sig; /* signals pending to this process */
93: short xp_uid; /* user id, used to direct tty signals */
94: short xp_pgrp; /* name of process group leader */
95: short xp_pid; /* unique process id */
96: short xp_ppid; /* process id of parent */
97: short xp_xstat; /* Exit status for wait */
98: time_t xp_utime; /* user time, this proc */
99: time_t xp_stime; /* system time, this proc */
100: };
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.