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Annotation of sys/sys/resourcevar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: resourcevar.h,v 1.11 2007/03/15 10:22:30 art Exp $    */
        !             2: /*     $NetBSD: resourcevar.h,v 1.12 1995/11/22 23:01:53 cgd Exp $     */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1991, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. Neither the name of the University nor the names of its contributors
        !            17:  *    may be used to endorse or promote products derived from this software
        !            18:  *    without specific prior written permission.
        !            19:  *
        !            20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            30:  * SUCH DAMAGE.
        !            31:  *
        !            32:  *     @(#)resourcevar.h       8.3 (Berkeley) 2/22/94
        !            33:  */
        !            34:
        !            35: #ifndef        _SYS_RESOURCEVAR_H_
        !            36: #define        _SYS_RESOURCEVAR_H_
        !            37:
        !            38: #include <sys/timeout.h>
        !            39:
        !            40: /*
        !            41:  * Kernel per-process accounting / statistics
        !            42:  * (not necessarily resident except when running).
        !            43:  */
        !            44: struct pstats {
        !            45: #define        pstat_startzero p_ru
        !            46:        struct  rusage p_ru;            /* stats for this proc */
        !            47:        struct  rusage p_cru;           /* sum of stats for reaped children */
        !            48:        struct  itimerval p_timer[3];   /* virtual-time timers */
        !            49: #define        pstat_endzero   pstat_startcopy
        !            50:
        !            51: #define        pstat_startcopy p_prof
        !            52:        struct uprof {                  /* profile arguments */
        !            53:                caddr_t pr_base;        /* buffer base */
        !            54:                size_t  pr_size;        /* buffer size */
        !            55:                u_long  pr_off;         /* pc offset */
        !            56:                u_int   pr_scale;       /* pc scaling */
        !            57:                u_long  pr_addr;        /* temp storage for addr until AST */
        !            58:                u_long  pr_ticks;       /* temp storage for ticks until AST */
        !            59:        } p_prof;
        !            60: #define        pstat_endcopy   p_start
        !            61:        struct  timeval p_start;        /* starting time */
        !            62:        struct  timeout p_virt_to;      /* virtual itimer trampoline. */
        !            63:        struct  timeout p_prof_to;      /* prof itimer trampoline. */
        !            64: };
        !            65:
        !            66: /*
        !            67:  * Kernel shareable process resource limits.  Because this structure
        !            68:  * is moderately large but changes infrequently, it is normally
        !            69:  * shared copy-on-write after forks.  If a group of processes
        !            70:  * ("threads") share modifications, the PL_SHAREMOD flag is set,
        !            71:  * and a copy must be made for the child of a new fork that isn't
        !            72:  * sharing modifications to the limits.
        !            73:  */
        !            74: struct plimit {
        !            75:        struct  rlimit pl_rlimit[RLIM_NLIMITS];
        !            76: #define        PL_SHAREMOD     0x01            /* modifications are shared */
        !            77:        int     p_lflags;
        !            78:        int     p_refcnt;               /* number of references */
        !            79: };
        !            80:
        !            81: /* add user profiling from AST */
        !            82: #define        ADDUPROF(p)                                                     \
        !            83: do {                                                                   \
        !            84:        atomic_clearbits_int(&(p)->p_flag, P_OWEUPC);                   \
        !            85:        addupc_task((p), (p)->p_stats->p_prof.pr_addr,                  \
        !            86:            (p)->p_stats->p_prof.pr_ticks);                             \
        !            87:        (p)->p_stats->p_prof.pr_ticks = 0;                              \
        !            88: } while (0)
        !            89:
        !            90: #ifdef _KERNEL
        !            91: void    addupc_intr(struct proc *p, u_long pc);
        !            92: void    addupc_task(struct proc *p, u_long pc, u_int ticks);
        !            93: void    calcru(struct proc *p, struct timeval *up, struct timeval *sp,
        !            94:            struct timeval *ip);
        !            95: struct plimit *limcopy(struct plimit *lim);
        !            96: void   limfree(struct plimit *);
        !            97:
        !            98: void    ruadd(struct rusage *ru, struct rusage *ru2);
        !            99:
        !           100: void   virttimer_trampoline(void *);
        !           101: void   proftimer_trampoline(void *);
        !           102: #endif
        !           103: #endif /* !_SYS_RESOURCEVAR_H_ */