BSD 4_3_Net_2 release

[unix-history] / usr / src / sys / sys / proc.h

diff --git a/usr/src/sys/sys/proc.h b/usr/src/sys/sys/proc.h
index ec14758..f41c2d0 100644 (file)
--- a/usr/src/sys/sys/proc.h
+++ b/usr/src/sys/sys/proc.h
@@ -1,12 +1,42 @@
-/*
- * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+/*-
+ * Copyright (c) 1986, 1989, 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  *
  *

- *     @(#)proc.h      7.24 (Berkeley) %G%
+ *     @(#)proc.h      7.28 (Berkeley) 5/30/91

  */
 
  */
 

-#include "vm/vm.h"                     /* XXX */
+#ifndef _PROC_H_
+#define        _PROC_H_
+
+#include <machine/proc.h>              /* machine-dependent proc substruct */

 
 /*
  * One structure allocated per session.
 
 /*
  * One structure allocated per session.


@@ -36,7 +66,7 @@ struct        pgrp {
  * of control, known in UN*X as a process; it has references to substructures
  * containing descriptions of things that the process uses, but may share
  * with related processes.  The process structure and the substructures
  * of control, known in UN*X as a process; it has references to substructures
  * containing descriptions of things that the process uses, but may share
  * with related processes.  The process structure and the substructures

- * are always addressible except for those marked "(proc only)" below,
+ * are always addressible except for those marked "(PROC ONLY)" below,

  * which might be addressible only on a processor on which the process
  * is running.
  */
  * which might be addressible only on a processor on which the process
  * is running.
  */


@@ -49,10 +79,10 @@ struct      proc {
        /* substructures: */
        struct  pcred *p_cred;          /* process owner's identity */
        struct  filedesc *p_fd;         /* ptr to open files structure */
        /* substructures: */
        struct  pcred *p_cred;          /* process owner's identity */
        struct  filedesc *p_fd;         /* ptr to open files structure */

-       struct  pstats *p_stats;        /* accounting/statistics (proc only) */
+       struct  pstats *p_stats;        /* accounting/statistics (PROC ONLY) */

        struct  plimit *p_limit;        /* process limits */
        struct  vmspace *p_vmspace;     /* address space */
        struct  plimit *p_limit;        /* process limits */
        struct  vmspace *p_vmspace;     /* address space */

-       struct  sigacts *p_sigacts;     /* signal actions, state (proc only) */
+       struct  sigacts *p_sigacts;     /* signal actions, state (PROC ONLY) */

 
 #define        p_ucred         p_cred->pc_ucred
 #define        p_rlimit        p_limit->pl_rlimit
 
 #define        p_ucred         p_cred->pc_ucred
 #define        p_rlimit        p_limit->pl_rlimit


@@ -101,7 +131,7 @@ struct      proc {
        u_char  p_pri;          /* priority, negative is high */
        u_char  p_usrpri;       /* user-priority based on p_cpu and p_nice */
        char    p_nice;         /* nice for cpu usage */
        u_char  p_pri;          /* priority, negative is high */
        u_char  p_usrpri;       /* user-priority based on p_cpu and p_nice */
        char    p_nice;         /* nice for cpu usage */

-/*     char    p_space; */
+/*     char    p_space1; */

 
        struct  pgrp *p_pgrp;   /* pointer to process group */
        char    p_comm[MAXCOMLEN+1];
 
        struct  pgrp *p_pgrp;   /* pointer to process group */
        char    p_comm[MAXCOMLEN+1];


@@ -110,14 +140,15 @@ struct    proc {
 #define        p_endcopy       p_wmesg
        char    *p_wmesg;       /* reason for sleep */
        int     p_thread;       /* id for this "thread" (Mach glue) XXX */
 #define        p_endcopy       p_wmesg
        char    *p_wmesg;       /* reason for sleep */
        int     p_thread;       /* id for this "thread" (Mach glue) XXX */

-       caddr_t p_addr;         /* kernel virtual address of u-area */
+       struct  user *p_addr;   /* kernel virtual addr of u-area (PROC ONLY) */

        swblk_t p_swaddr;       /* disk address of u area when swapped */
        int     *p_regs;        /* saved registers during syscall/trap */
        swblk_t p_swaddr;       /* disk address of u area when swapped */
        int     *p_regs;        /* saved registers during syscall/trap */

+       struct  mdproc p_md;    /* any machine-dependent fields */

 
        u_short p_xstat;        /* Exit status for wait; also stop signal */
        u_short p_dupfd;        /* sideways return value from fdopen XXX */
        u_short p_acflag;       /* accounting flags */
 
        u_short p_xstat;        /* Exit status for wait; also stop signal */
        u_short p_dupfd;        /* sideways return value from fdopen XXX */
        u_short p_acflag;       /* accounting flags */

-/*     u_short p_space; */
+/*     short   p_space2; */

        struct  rusage *p_ru;   /* exit information XXX */
 
        long    p_spare[4];     /* tmp spares to avoid shifting eproc */
        struct  rusage *p_ru;   /* exit information XXX */
 
        long    p_spare[4];     /* tmp spares to avoid shifting eproc */


@@ -141,34 +172,41 @@ struct    pcred {
        int     p_refcnt;               /* number of references */
 };
 
        int     p_refcnt;               /* number of references */
 };
 

-/* 
- * getkerninfo() proc ops return arrays of augmented proc structures:
- */
-struct kinfo_proc {
-       struct  proc kp_proc;                   /* proc structure */
-       struct  eproc {
-               struct  proc *e_paddr;          /* address of proc */
-               struct  session *e_sess;        /* session pointer */
-               struct  pcred e_pcred;          /* process credentials */
-               struct  ucred e_ucred;          /* current credentials */
-               struct  vmspace e_vm;           /* address space */
-               pid_t   e_pgid;                 /* process group id */
-               short   e_jobc;                 /* job control counter */
-               dev_t   e_tdev;                 /* controlling tty dev */
-               pid_t   e_tpgid;                /* tty process group id */
-               struct  session *e_tsess;       /* tty session pointer */
-#define        WMESGLEN        7
-               char    e_wmesg[WMESGLEN+1];    /* wchan message */
-               segsz_t e_xsize;                /* text size */
-               short   e_xrssize;              /* text rss */
-               short   e_xccount;              /* text references */
-               short   e_xswrss;
-               long    e_flag;
-#define        EPROC_CTTY      0x01    /* controlling tty vnode active */
-#define        EPROC_SLEADER   0x02    /* session leader */
-               long    e_spare[7];
-       } kp_eproc;
-};
+/* 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   0x0000001       /* in core */
+#define        SSYS    0x0000002       /* swapper or pager process */
+#define        SSINTR  0x0000004       /* sleep is interruptible */
+#define        SCTTY   0x0000008       /* has a controlling terminal */
+#define        SPPWAIT 0x0000010       /* parent is waiting for child to exec/exit */
+#define SEXEC  0x0000020       /* process called exec */
+#define        STIMO   0x0000040       /* timing out during sleep */
+#define        SSEL    0x0000080       /* selecting; wakeup/waiting danger */
+#define        SWEXIT  0x0000100       /* working on exiting */
+#define        SNOCLDSTOP 0x0000200    /* no SIGCHLD when children stop */
+/* the following three should probably be changed into a hold count */
+#define        SLOCK   0x0000400       /* process being swapped out */
+#define        SKEEP   0x0000800       /* another flag to prevent swap out */
+#define        SPHYSIO 0x0001000       /* doing physical i/o */
+#define        STRC    0x0004000       /* process is being traced */
+#define        SWTED   0x0008000       /* another tracing flag */
+#define        SADVLCK 0x0040000       /* process may hold a POSIX advisory lock */
+/* the following should be moved to machine-dependent areas */
+#define        SOWEUPC 0x0002000       /* owe process an addupc() call at next ast */
+#ifdef HPUXCOMPAT
+#define        SHPUX   0x0010000       /* HP-UX process (HPUXCOMPAT) */
+#else
+#define        SHPUX   0               /* not HP-UX process (HPUXCOMPAT) */
+#endif
+/* not currently in use (never set) */
+#define        SPAGE   0x0020000       /* process in page wait state */

 
 #ifdef KERNEL
 /*
 
 #ifdef KERNEL
 /*


@@ -179,18 +217,23 @@ struct kinfo_proc {
 #define        PID_MAX         30000
 #define        NO_PID          30001
 #define        PIDHASH(pid)    ((pid) & pidhashmask)
 #define        PID_MAX         30000
 #define        NO_PID          30001
 #define        PIDHASH(pid)    ((pid) & pidhashmask)

+
+#define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
+#define        SESSHOLD(s)     ((s)->s_count++)
+#define        SESSRELE(s)     { \
+               if (--(s)->s_count == 0) \
+                       FREE(s, M_SESSION); \
+       }
+

 extern int pidhashmask;                /* in param.c */
 extern struct proc *pidhash[];         /* in param.c */
 struct proc *pfind();                  /* find process by id */
 extern struct pgrp *pgrphash[];        /* in param.c */
 struct         pgrp *pgfind();                 /* find process group by id */
 extern int pidhashmask;                /* in param.c */
 extern struct proc *pidhash[];         /* in param.c */
 struct proc *pfind();                  /* find process by id */
 extern struct pgrp *pgrphash[];        /* in param.c */
 struct         pgrp *pgfind();                 /* find process group by id */

-struct proc *zombproc, *allproc;
+struct proc *zombproc, *allproc;       /* lists of procs in various states */

 extern struct proc proc0;              /* process slot for swapper */
 struct proc *initproc, *pageproc;      /* process slots for init, pager */
 extern struct proc proc0;              /* process slot for swapper */
 struct proc *initproc, *pageproc;      /* process slots for init, pager */

-#ifdef notyet
-struct proc *curproc;                  /* current running proc */
-#endif
-                                       /* lists of procs in various states */
+extern struct proc *curproc;           /* current running proc */

 extern int nprocs, maxproc;            /* current and max number of procs */
 
 #define        NQS     32              /* 32 run queues */
 extern int nprocs, maxproc;            /* current and max number of procs */
 
 #define        NQS     32              /* 32 run queues */


@@ -200,50 +243,6 @@ struct     prochd {
 } qs[NQS];
 
 int    whichqs;                /* bit mask summarizing non-empty qs's */
 } qs[NQS];
 
 int    whichqs;                /* bit mask summarizing non-empty qs's */

+#endif /* KERNEL */

 
 

-#define SESS_LEADER(p) ((p)->p_session->s_leader == (p))
-#define        SESSHOLD(s)     ((s)->s_count++)
-#define        SESSRELE(s)     { \
-               if (--(s)->s_count == 0) \
-                       FREE(s, M_SESSION); \
-               }
-#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 */
-/* NEED TO CHECK which of these are still used */
-#define        SLOAD   0x0000001       /* in core */
-#define        SSYS    0x0000002       /* swapper or pager process */
-#define        SLOCK   0x0000004       /* process being swapped out */
-#define        SSWAP   0x0000008       /* save area flag */
-#define        STRC    0x0000010       /* process is being traced */
-#define        SWTED   0x0000020       /* another tracing flag */
-#define        SSINTR  0x0000040       /* sleep is interruptible */
-#define        SPAGE   0x0000080       /* process in page wait state */
-#define        SKEEP   0x0000100       /* another flag to prevent swap out */
-/*#define SOMASK       0x0000200       /* restore old mask after taking signal */
-#define        SWEXIT  0x0000400       /* working on exiting */
-#define        SPHYSIO 0x0000800       /* doing physical i/o */
-#define        SPPWAIT 0x0001000       /* parent is waiting for child to exec/exit */
-#define        SVFORK  SPARSYNC        /* process resulted from vfork() XXX */
-/*#define SVFDONE      0x0002000       /* another vfork flag XXX */
-/*#define SNOVM        0x0004000       /* no vm, parent in a vfork() XXX */
-#define        SPAGV   0x0008000       /* init data space on demand, from vnode */
-#define        SSEQL   0x0010000       /* user warned of sequential vm behavior */
-#define        SUANOM  0x0020000       /* user warned of random vm behavior */
-#define        STIMO   0x0040000       /* timing out during sleep */
-#define        SNOCLDSTOP 0x0080000    /* no SIGCHLD when children stop */
-#define        SCTTY   0x0100000       /* has a controlling terminal */
-#define        SOWEUPC 0x0200000       /* owe process an addupc() call at next ast */
-#define        SSEL    0x0400000       /* selecting; wakeup/waiting danger */
-#define SEXEC  0x0800000       /* process called exec */
-#define        SHPUX   0x1000000       /* HP-UX process (HPUXCOMPAT) */
-#define        SULOCK  0x2000000       /* locked in core after swap error XXX */
-#define        SPTECHG 0x4000000       /* pte's for process have changed XXX */
+#endif /* !_PROC_H_ */