mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
e557058ac8
This change addresses various open source compatibility issues, so that we pass 313/411 of the tests in https://github.com/jart/libc-test where earlier today we were passing about 30/411 of them, due to header toil. Please note that Glibc only passes 341/411 so 313 today is pretty good! - Make the conformance of libc/isystem/ headers nearly perfect - Import more of the remaining math library routines from Musl - Fix inconsistencies with type signatures of calls like umask - Write tests for getpriority/setpriority which work great now - conform to `struct sockaddr *` on remaining socket functions - Import a bunch of uninteresting stdlib functions e.g. rand48 - Introduce readdir_r, scandir, pthread_kill, sigsetjmp, etc.. Follow the instructions in our `tool/scripts/cosmocc` toolchain to run these tests yourself. You use `make CC=cosmocc` on the test repository
57 lines
3.2 KiB
C
57 lines
3.2 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/syscall-nt.internal.h"
|
|
#include "libc/calls/syscall-sysv.internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/intrin/describeflags.internal.h"
|
|
#include "libc/intrin/strace.internal.h"
|
|
|
|
/**
|
|
* Sets nice value of thing.
|
|
*
|
|
* On Windows, there's only six priority classes. We define them as -16
|
|
* (realtime), -10 (high), -5 (above), 0 (normal), 5 (below), 15 (idle)
|
|
* which are the only values that'll roundtrip getpriority/setpriority.
|
|
*
|
|
* @param which can be one of:
|
|
* - `PRIO_PROCESS` is supported universally
|
|
* - `PRIO_PGRP` is supported on unix
|
|
* - `PRIO_USER` is supported on unix
|
|
* @param who is the pid, pgid, or uid, 0 meaning current
|
|
* @param value ∈ [-NZERO,NZERO) which is clamped automatically
|
|
* @return 0 on success, or -1 w/ errno
|
|
* @raise EINVAL if `which` was invalid or unsupported
|
|
* @error EACCES if `value` lower that `RLIMIT_NICE`
|
|
* @error EACCES on Linux without `CAP_SYS_NICE`
|
|
* @raise EPERM if access to process was denied
|
|
* @raise ESRCH if the process didn't exist
|
|
* @see getpriority()
|
|
*/
|
|
int setpriority(int which, unsigned who, int value) {
|
|
int rc;
|
|
if (!IsWindows()) {
|
|
rc = sys_setpriority(which, who, value);
|
|
} else {
|
|
rc = sys_setpriority_nt(which, who, value);
|
|
}
|
|
STRACE("setpriority(%s, %u, %d) → %d% m", DescribeWhichPrio(which), who,
|
|
value, rc);
|
|
return rc;
|
|
}
|