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authorTom Rhodes <trhodes@FreeBSD.org>2006-11-11 16:29:38 +0000
committerTom Rhodes <trhodes@FreeBSD.org>2006-11-11 16:29:38 +0000
commit5d02334f972e0aed13a3e387dcec6fe5caffecac (patch)
tree66a57c2532f996dbbd43d32daa0de87323056b22 /sys/posix4/p1003_1b.c
parent1877aa1aa78eba8c92b8a32a71ebf3df1fcd2920 (diff)
downloadsrc-5d02334f972e0aed13a3e387dcec6fe5caffecac.tar.gz
src-5d02334f972e0aed13a3e387dcec6fe5caffecac.zip
These files have been repo-copied to the "normal" kernel hierarchy.
Notes
Notes: svn path=/head/; revision=164186
Diffstat (limited to 'sys/posix4/p1003_1b.c')
-rw-r--r--sys/posix4/p1003_1b.c345
1 files changed, 0 insertions, 345 deletions
diff --git a/sys/posix4/p1003_1b.c b/sys/posix4/p1003_1b.c
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--- a/sys/posix4/p1003_1b.c
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@@ -1,345 +0,0 @@
-/*-
- * Copyright (c) 1996, 1997, 1998
- * HD Associates, Inc. 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 HD Associates, Inc
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES 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 HD ASSOCIATES 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.
- */
-
-/* p1003_1b: Real Time common code.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include "opt_posix.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <sys/priv.h>
-#include <sys/proc.h>
-#include <sys/syscallsubr.h>
-#include <sys/sysctl.h>
-#include <sys/sysent.h>
-#include <sys/syslog.h>
-#include <sys/sysproto.h>
-
-#include <posix4/posix4.h>
-
-MALLOC_DEFINE(M_P31B, "p1003.1b", "Posix 1003.1B");
-
-/* The system calls return ENOSYS if an entry is called that is
- * not run-time supported. I am also logging since some programs
- * start to use this when they shouldn't. That will be removed if annoying.
- */
-int
-syscall_not_present(struct thread *td, const char *s, struct nosys_args *uap)
-{
- log(LOG_ERR, "cmd %s pid %d tried to use non-present %s\n",
- td->td_proc->p_comm, td->td_proc->p_pid, s);
-
- /* a " return nosys(p, uap); " here causes a core dump.
- */
-
- return ENOSYS;
-}
-
-#if !defined(_KPOSIX_PRIORITY_SCHEDULING)
-
-/* Not configured but loadable via a module:
- */
-
-static int
-sched_attach(void)
-{
- return 0;
-}
-
-SYSCALL_NOT_PRESENT_GEN(sched_setparam)
-SYSCALL_NOT_PRESENT_GEN(sched_getparam)
-SYSCALL_NOT_PRESENT_GEN(sched_setscheduler)
-SYSCALL_NOT_PRESENT_GEN(sched_getscheduler)
-SYSCALL_NOT_PRESENT_GEN(sched_yield)
-SYSCALL_NOT_PRESENT_GEN(sched_get_priority_max)
-SYSCALL_NOT_PRESENT_GEN(sched_get_priority_min)
-SYSCALL_NOT_PRESENT_GEN(sched_rr_get_interval)
-#else
-
-/* Configured in kernel version:
- */
-static struct ksched *ksched;
-
-static int
-sched_attach(void)
-{
- int ret = ksched_attach(&ksched);
-
- if (ret == 0)
- p31b_setcfg(CTL_P1003_1B_PRIORITY_SCHEDULING, 1);
-
- return ret;
-}
-
-/*
- * MPSAFE
- */
-int
-sched_setparam(struct thread *td, struct sched_setparam_args *uap)
-{
- struct thread *targettd;
- struct proc *targetp;
- int e;
- struct sched_param sched_param;
-
- e = copyin(uap->param, &sched_param, sizeof(sched_param));
- if (e)
- return (e);
-
- if (uap->pid == 0) {
- targetp = td->td_proc;
- targettd = td;
- PROC_LOCK(targetp);
- } else {
- targetp = pfind(uap->pid);
- if (targetp == NULL)
- return (ESRCH);
- targettd = FIRST_THREAD_IN_PROC(targetp);
- }
-
- e = p_cansched(td, targetp);
- if (e == 0) {
- e = ksched_setparam(ksched, targettd,
- (const struct sched_param *)&sched_param);
- }
- PROC_UNLOCK(targetp);
- return (e);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_getparam(struct thread *td, struct sched_getparam_args *uap)
-{
- int e;
- struct sched_param sched_param;
- struct thread *targettd;
- struct proc *targetp;
-
- if (uap->pid == 0) {
- targetp = td->td_proc;
- targettd = td;
- PROC_LOCK(targetp);
- } else {
- targetp = pfind(uap->pid);
- if (targetp == NULL) {
- return (ESRCH);
- }
- targettd = FIRST_THREAD_IN_PROC(targetp); /* XXXKSE */
- }
-
- e = p_cansee(td, targetp);
- if (e == 0) {
- e = ksched_getparam(ksched, targettd, &sched_param);
- }
- PROC_UNLOCK(targetp);
- if (e == 0)
- e = copyout(&sched_param, uap->param, sizeof(sched_param));
- return (e);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_setscheduler(struct thread *td, struct sched_setscheduler_args *uap)
-{
- int e;
- struct sched_param sched_param;
- struct thread *targettd;
- struct proc *targetp;
-
- /* Don't allow non root user to set a scheduler policy. */
- e = priv_check(td, PRIV_SCHED_SET);
- if (e)
- return (e);
-
- e = copyin(uap->param, &sched_param, sizeof(sched_param));
- if (e)
- return (e);
-
- if (uap->pid == 0) {
- targetp = td->td_proc;
- targettd = td;
- PROC_LOCK(targetp);
- } else {
- targetp = pfind(uap->pid);
- if (targetp == NULL)
- return (ESRCH);
- targettd = FIRST_THREAD_IN_PROC(targetp);
- }
-
- e = p_cansched(td, targetp);
- if (e == 0) {
- e = ksched_setscheduler(ksched, targettd,
- uap->policy, (const struct sched_param *)&sched_param);
- }
- PROC_UNLOCK(targetp);
- return (e);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_getscheduler(struct thread *td, struct sched_getscheduler_args *uap)
-{
- int e, policy;
- struct thread *targettd;
- struct proc *targetp;
-
- if (uap->pid == 0) {
- targetp = td->td_proc;
- targettd = td;
- PROC_LOCK(targetp);
- } else {
- targetp = pfind(uap->pid);
- if (targetp == NULL) {
- e = ESRCH;
- goto done2;
- }
- targettd = FIRST_THREAD_IN_PROC(targetp); /* XXXKSE */
- }
-
- e = p_cansee(td, targetp);
- if (e == 0) {
- e = ksched_getscheduler(ksched, targettd, &policy);
- td->td_retval[0] = policy;
- }
- PROC_UNLOCK(targetp);
-
-done2:
- return (e);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_yield(struct thread *td, struct sched_yield_args *uap)
-{
-
- return (ksched_yield(ksched));
-}
-
-/*
- * MPSAFE
- */
-int
-sched_get_priority_max(struct thread *td,
- struct sched_get_priority_max_args *uap)
-{
- int error, prio;
-
- error = ksched_get_priority_max(ksched, uap->policy, &prio);
- td->td_retval[0] = prio;
- return (error);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_get_priority_min(struct thread *td,
- struct sched_get_priority_min_args *uap)
-{
- int error, prio;
-
- error = ksched_get_priority_min(ksched, uap->policy, &prio);
- td->td_retval[0] = prio;
- return (error);
-}
-
-/*
- * MPSAFE
- */
-int
-sched_rr_get_interval(struct thread *td,
- struct sched_rr_get_interval_args *uap)
-{
- struct timespec timespec;
- int error;
-
- error = kern_sched_rr_get_interval(td, uap->pid, &timespec);
- if (error == 0)
- error = copyout(&timespec, uap->interval, sizeof(timespec));
- return (error);
-}
-
-int
-kern_sched_rr_get_interval(struct thread *td, pid_t pid,
- struct timespec *ts)
-{
- int e;
- struct thread *targettd;
- struct proc *targetp;
-
- if (pid == 0) {
- targettd = td;
- targetp = td->td_proc;
- PROC_LOCK(targetp);
- } else {
- targetp = td->td_proc;
- PROC_LOCK(targetp);
- targettd = thread_find(targetp, pid);
- if (targettd == NULL) {
- PROC_UNLOCK(targetp);
- return (ESRCH);
- }
- }
-
- e = p_cansee(td, targetp);
- if (e == 0)
- e = ksched_rr_get_interval(ksched, targettd, ts);
- PROC_UNLOCK(targetp);
- return (e);
-}
-
-#endif
-
-static void
-p31binit(void *notused)
-{
- (void) sched_attach();
- p31b_setcfg(CTL_P1003_1B_PAGESIZE, PAGE_SIZE);
-}
-
-SYSINIT(p31b, SI_SUB_P1003_1B, SI_ORDER_FIRST, p31binit, NULL);