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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2017 Joyent, Inc. All rights reserved.
*/
/*
* Implement fast getrusage call
*/
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/errno.h>
#include <sys/resource.h>
#include <sys/vm_usage.h>
static int
getrusage(void *user_rusage)
{
struct rusage r;
kthread_t *t = curthread;
proc_t *p = ttoproc(t);
hrtime_t snsecs, unsecs;
klwp_t *lwp;
bzero(&r, sizeof (struct rusage));
mutex_enter(&p->p_lock);
if (p->p_defunct > 0) {
r.ru_majflt = p->p_ru.majflt;
r.ru_minflt = p->p_ru.minflt;
r.ru_nswap = p->p_ru.nswap;
r.ru_inblock = p->p_ru.inblock;
r.ru_oublock = p->p_ru.oublock;
r.ru_msgsnd = p->p_ru.msgsnd;
r.ru_msgrcv = p->p_ru.msgrcv;
r.ru_nsignals = p->p_ru.nsignals;
r.ru_nvcsw = p->p_ru.nvcsw;
r.ru_nivcsw = p->p_ru.nivcsw;
}
unsecs = mstate_aggr_state(p, LMS_USER);
snsecs = mstate_aggr_state(p, LMS_SYSTEM);
do {
if (t->t_proc_flag & TP_LWPEXIT)
continue;
lwp = ttolwp(t);
r.ru_majflt += lwp->lwp_ru.majflt;
r.ru_minflt += lwp->lwp_ru.minflt;
r.ru_nswap += lwp->lwp_ru.nswap;
r.ru_inblock += lwp->lwp_ru.inblock;
r.ru_oublock += lwp->lwp_ru.oublock;
r.ru_msgsnd += lwp->lwp_ru.msgsnd;
r.ru_msgrcv += lwp->lwp_ru.msgrcv;
r.ru_nsignals += lwp->lwp_ru.nsignals;
r.ru_nvcsw += lwp->lwp_ru.nvcsw;
r.ru_nivcsw += lwp->lwp_ru.nivcsw;
} while ((t = t->t_forw) != curthread);
mutex_exit(&p->p_lock);
hrt2tv(unsecs, &r.ru_utime);
hrt2tv(snsecs, &r.ru_stime);
#ifdef _SYSCALL32_IMPL
if (get_udatamodel() == DATAMODEL_ILP32) {
struct rusage32 r32;
bzero(&r32, sizeof (struct rusage32));
r32.ru_utime.tv_sec = r.ru_utime.tv_sec;
r32.ru_utime.tv_usec = r.ru_utime.tv_usec;
r32.ru_stime.tv_sec = r.ru_stime.tv_sec;
r32.ru_stime.tv_usec = r.ru_stime.tv_usec;
r32.ru_majflt = (int32_t)r.ru_majflt;
r32.ru_minflt = (int32_t)r.ru_minflt;
r32.ru_nswap = (int32_t)r.ru_nswap;
r32.ru_inblock = (int32_t)r.ru_inblock;
r32.ru_oublock = (int32_t)r.ru_oublock;
r32.ru_msgsnd = (int32_t)r.ru_msgsnd;
r32.ru_msgrcv = (int32_t)r.ru_msgrcv;
r32.ru_nsignals = (int32_t)r.ru_nsignals;
r32.ru_nvcsw = (int32_t)r.ru_nvcsw;
r32.ru_nivcsw = (int32_t)r.ru_nivcsw;
if (copyout(&r32, user_rusage, sizeof (r32)) != 0)
return (set_errno(EFAULT));
} else
#endif /* _SYSCALL32_IMPL */
if (copyout(&r, user_rusage, sizeof (r)) != 0)
return (set_errno(EFAULT));
return (0);
}
static int
getrusage_chld(void *user_rusage)
{
struct rusage r;
kthread_t *t = curthread;
proc_t *p = ttoproc(t);
hrtime_t snsecs, unsecs;
bzero(&r, sizeof (struct rusage));
mutex_enter(&p->p_lock);
unsecs = p->p_cacct[LMS_USER];
snsecs = p->p_cacct[LMS_SYSTEM] + p->p_cacct[LMS_TRAP];
r.ru_majflt = p->p_cru.majflt;
r.ru_minflt = p->p_cru.minflt;
r.ru_nswap = p->p_cru.nswap;
r.ru_inblock = p->p_cru.inblock;
r.ru_oublock = p->p_cru.oublock;
r.ru_msgsnd = p->p_cru.msgsnd;
r.ru_msgrcv = p->p_cru.msgrcv;
r.ru_nsignals = p->p_cru.nsignals;
r.ru_nvcsw = p->p_cru.nvcsw;
r.ru_nivcsw = p->p_cru.nivcsw;
mutex_exit(&p->p_lock);
hrt2tv(unsecs, &r.ru_utime);
hrt2tv(snsecs, &r.ru_stime);
#ifdef _SYSCALL32_IMPL
if (get_udatamodel() == DATAMODEL_ILP32) {
struct rusage32 r32;
bzero(&r32, sizeof (struct rusage32));
r32.ru_utime.tv_sec = r.ru_utime.tv_sec;
r32.ru_utime.tv_usec = r.ru_utime.tv_usec;
r32.ru_stime.tv_sec = r.ru_stime.tv_sec;
r32.ru_stime.tv_usec = r.ru_stime.tv_usec;
r32.ru_majflt = (int32_t)r.ru_majflt;
r32.ru_minflt = (int32_t)r.ru_minflt;
r32.ru_nswap = (int32_t)r.ru_nswap;
r32.ru_inblock = (int32_t)r.ru_inblock;
r32.ru_oublock = (int32_t)r.ru_oublock;
r32.ru_msgsnd = (int32_t)r.ru_msgsnd;
r32.ru_msgrcv = (int32_t)r.ru_msgrcv;
r32.ru_nsignals = (int32_t)r.ru_nsignals;
r32.ru_nvcsw = (int32_t)r.ru_nvcsw;
r32.ru_nivcsw = (int32_t)r.ru_nivcsw;
if (copyout(&r32, user_rusage, sizeof (r32)) != 0)
return (set_errno(EFAULT));
} else
#endif /* _SYSCALL32_IMPL */
if (copyout(&r, user_rusage, sizeof (r)) != 0)
return (set_errno(EFAULT));
return (0);
}
static int
getrusage_lwp(void *user_rusage)
{
struct rusage r;
kthread_t *t = curthread;
klwp_t *lwp;
hrtime_t snsecs, unsecs;
struct mstate *ms;
bzero(&r, sizeof (struct rusage));
lwp = ttolwp(t);
ms = &lwp->lwp_mstate;
unsecs = ms->ms_acct[LMS_USER];
snsecs = ms->ms_acct[LMS_SYSTEM] + ms->ms_acct[LMS_TRAP];
scalehrtime(&unsecs);
scalehrtime(&snsecs);
r.ru_majflt = lwp->lwp_ru.majflt;
r.ru_minflt = lwp->lwp_ru.minflt;
r.ru_nswap = lwp->lwp_ru.nswap;
r.ru_inblock = lwp->lwp_ru.inblock;
r.ru_oublock = lwp->lwp_ru.oublock;
r.ru_msgsnd = lwp->lwp_ru.msgsnd;
r.ru_msgrcv = lwp->lwp_ru.msgrcv;
r.ru_nsignals = lwp->lwp_ru.nsignals;
r.ru_nvcsw = lwp->lwp_ru.nvcsw;
r.ru_nivcsw = lwp->lwp_ru.nivcsw;
hrt2tv(unsecs, &r.ru_utime);
hrt2tv(snsecs, &r.ru_stime);
#ifdef _SYSCALL32_IMPL
if (get_udatamodel() == DATAMODEL_ILP32) {
struct rusage32 r32;
bzero(&r32, sizeof (struct rusage32));
r32.ru_utime.tv_sec = r.ru_utime.tv_sec;
r32.ru_utime.tv_usec = r.ru_utime.tv_usec;
r32.ru_stime.tv_sec = r.ru_stime.tv_sec;
r32.ru_stime.tv_usec = r.ru_stime.tv_usec;
r32.ru_majflt = (int32_t)r.ru_majflt;
r32.ru_minflt = (int32_t)r.ru_minflt;
r32.ru_nswap = (int32_t)r.ru_nswap;
r32.ru_inblock = (int32_t)r.ru_inblock;
r32.ru_oublock = (int32_t)r.ru_oublock;
r32.ru_msgsnd = (int32_t)r.ru_msgsnd;
r32.ru_msgrcv = (int32_t)r.ru_msgrcv;
r32.ru_nsignals = (int32_t)r.ru_nsignals;
r32.ru_nvcsw = (int32_t)r.ru_nvcsw;
r32.ru_nivcsw = (int32_t)r.ru_nivcsw;
if (copyout(&r32, user_rusage, sizeof (r32)) != 0)
return (set_errno(EFAULT));
} else
#endif /* _SYSCALL32_IMPL */
if (copyout(&r, user_rusage, sizeof (r)) != 0)
return (set_errno(EFAULT));
return (0);
}
int
rusagesys(int code, void *arg1, void *arg2, void *arg3, void *arg4)
{
switch (code) {
case _RUSAGESYS_GETRUSAGE:
return (getrusage(arg1));
case _RUSAGESYS_GETRUSAGE_CHLD:
return (getrusage_chld(arg1));
case _RUSAGESYS_GETRUSAGE_LWP:
return (getrusage_lwp(arg1));
case _RUSAGESYS_GETVMUSAGE:
return (vm_getusage((uint_t)(uintptr_t)arg1, (time_t)arg2,
(vmusage_t *)arg3, (size_t *)arg4, 0));
default:
return (set_errno(EINVAL));
}
}
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