mirror of
https://github.com/jart/cosmopolitan.git
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b41f91c658
The cosmopolitan command interpreter now has 13 builtin commands, variable support, support for ; / && / || syntax, asynchronous support, and plenty of unit tests with bug fixes. This change fixes a bug in posix_spawn() with null envp arg. strace logging now uses atomic writes for scatter functions. Breaking change renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use the new token bucket algorithm. WIN32 affinity masks now inherit across fork() and execve().
48 lines
2.7 KiB
C
48 lines
2.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/sched-sysv.internal.h"
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#include "libc/calls/struct/sched_param.h"
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#include "libc/calls/struct/sched_param.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/strace.internal.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Sets scheduler policy parameter.
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*
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* @return 0 on success, or -1 w/ errno
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* @raise ENOSYS on XNU, Windows, OpenBSD
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* @vforksafe
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*/
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int sched_setparam(int pid, const struct sched_param *param) {
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int rc, policy;
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struct sched_param p;
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if (!param || (IsAsan() && !__asan_is_valid(param, sizeof(*param)))) {
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rc = efault();
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} else if (IsNetbsd()) {
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if ((rc = policy = sys_sched_getscheduler_netbsd(pid, &p)) != -1) {
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rc = sys_sched_setparam_netbsd(pid, P_ALL_LWPS, policy, param);
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}
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} else {
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rc = sys_sched_setparam(pid, param);
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}
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STRACE("sched_setparam(%d, %s) → %d% m", pid, DescribeSchedParam(param), rc);
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return rc;
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}
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