date and time created 80/04/09 16:24:59 by bill

SCCS-vsn: sys/sys/proc.h 3.1

diff --git a/usr/src/sys/sys/proc.h b/usr/src/sys/sys/proc.h
new file mode 100644 (file)
index 0000000..7ba40d9
--- /dev/null
+++ b/usr/src/sys/sys/proc.h
@@ -0,0 +1,132 @@
+/*     proc.h  3.1     %H%     */
+
+/*
+ * One structure allocated per active
+ * process. It contains all data needed
+ * about the process while the
+ * process may be swapped out.
+ * Other per process data (user.h)
+ * is swapped with the process.
+ *
+ * NB: OFFSETS HERE ARE ALSO DEFINED IN proc.m
+ */
+struct proc
+{
+       struct  proc *p_link;   /* linked list of running processes */
+       struct  proc *p_rlink;
+       struct  pte *p_addr;    /* u-area kernel map address */
+       char    p_usrpri;       /* user-priority based on p_cpu and p_nice */
+       char    p_pri;          /* priority, negative is high */
+       char    p_cpu;          /* cpu usage for scheduling */
+       char    p_stat;
+       char    p_time;         /* resident time for scheduling */
+       char    p_nice;         /* nice for cpu usage */
+       char    p_slptime;      /* time since last block */
+       int     p_flag;
+       int     p_sig;          /* signals pending to this process */
+       int     p_ignsig;       /* ignored signals */
+       short   p_uid;          /* user id, used to direct tty signals */
+       short   p_pgrp;         /* name of process group leader */
+       short   p_pid;          /* unique process id */
+       short   p_ppid;         /* process id of parent */
+       short   p_poip;         /* count of page outs in progress */
+       short   p_szpt;         /* copy of page table size */
+       size_t  p_tsize;        /* size of text (clicks) */
+       size_t  p_dsize;        /* size of data space (clicks) */
+       size_t  p_ssize;        /* copy of stack size (clicks) */
+       size_t  p_rssize;       /* current resident set size in clicks */
+       size_t  p_swrss;        /* resident set size before last swap */
+       swblk_t p_swaddr;       /* disk address of u area when swapped */
+       caddr_t p_wchan;        /* event process is awaiting */
+       struct  text *p_textp;  /* pointer to text structure */
+       int     p_clktim;       /* time to alarm clock signal */
+       struct  pte *p_p0br;    /* page table base P0BR */
+       struct  proc *p_xlink;  /* linked list of procs sharing same text */
+       short   p_faults;       /* faults in last second */
+       short   p_aveflt;       /* average of p_faults into past */
+       short   p_ndx;          /* proc index for memall (because of vfork) */
+       short   p_idhash;       /* hashed based on p_pid for kill+exit+... */
+};
+
+#define        PIDHSZ          63
+#define        PIDHASH(pid)    ((pid) % PIDHSZ)
+
+#ifdef KERNEL
+short  pidhash[PIDHSZ];
+
+struct proc *pfind();
+#endif
+
+#ifdef KERNEL
+extern struct proc proc[];     /* the proc table itself */
+
+#ifdef FASTVAX
+#define        NQS     32              /* 32 run queues */
+struct prochd {
+       struct  proc *ph_link;  /* linked list of running processes */
+       struct  proc *ph_rlink;
+} qs[NQS];
+int    whichqs;                /* bit mask summarizing non-empty qs's */
+#else
+struct proc *runq;
+#endif
+#endif
+
+/* stat codes */
+#define        SSLEEP  1               /* awaiting an event */
+#define        SWAIT   2               /* (abandoned state) */
+#define        SRUN    3               /* running */
+#define        SIDL    4               /* intermediate state in process creation */
+#define        SZOMB   5               /* intermediate state in process termination */
+#define        SSTOP   6               /* process being traced */
+
+/* flag codes */
+#define        SLOAD   0x00001         /* in core */
+#define        SSYS    0x00002         /* swapper or pager process */
+#define        SLOCK   0x00004         /* process being swapped out */
+#define        SSWAP   0x00008         /* save area flag */
+#define        STRC    0x00010         /* process is being traced */
+#define        SWTED   0x00020         /* another tracing flag */
+#define        SULOCK  0x00040         /* user settable lock in core */
+#define        SPAGE   0x00080         /* process in page wait state */
+#define        SKEEP   0x00100         /* another flag to prevent swap out */
+#define        SDLYU   0x00200         /* delayed unlock of pages */
+#define        SWEXIT  0x00400         /* working on exiting */
+#define        SPHYSIO 0x00800         /* doing physical i/o (bio.c) */
+#define        SVFORK  0x01000         /* process resulted from vfork() */
+#define        SVFDONE 0x02000         /* another vfork flag */
+#define        SNOVM   0x04000         /* no vm, parent in a vfork() */
+#define        SPAGI   0x08000         /* init data space on demand, from inode */
+#define        SANOM   0x10000         /* system detected anomalous vm behavior */
+#define        SUANOM  0x20000         /* user warned of anomalous vm behavior */
+
+/*
+ * parallel proc structure
+ * to replace part with times
+ * to be passed to parent process
+ * in ZOMBIE state.
+ *
+ * THIS SHOULD BE DONE WITH A union() CONSTRUCTION
+ */
+struct xproc
+{
+       struct  proc *xp_link;
+       struct  proc *xp_rlink;
+       struct  pte *xp_addr;
+       char    xp_usrpri;
+       char    xp_pri;         /* priority, negative is high */
+       char    xp_cpu;         /* cpu usage for scheduling */
+       char    xp_stat;
+       char    xp_time;        /* resident time for scheduling */
+       char    xp_nice;        /* nice for cpu usage */
+       char    xp_slptime;
+       int     xp_flag;
+       int     xp_sig;         /* signals pending to this process */
+       int     xp_ignsig;
+       short   xp_uid;         /* user id, used to direct tty signals */
+       short   xp_pgrp;        /* name of process group leader */
+       short   xp_pid;         /* unique process id */
+       short   xp_ppid;        /* process id of parent */
+       short   xp_xstat;       /* Exit status for wait */
+       struct  vtimes xp_vm;
+};