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Add more missing libc functionality

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Justine Tunney 2022-08-06 09:56:17 -07:00
parent cf93ecbbb2
commit a8cf0f7e89
74 changed files with 6981 additions and 105 deletions
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40
libc/sock/pselect.c Normal file
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/*-*- 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 2022 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/strace.internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sock/internal.h"
#include "libc/sock/select.h"
/**
* Does what poll() does except with bitset API.
*
* This system call is supported on all platforms. It's like select()
* except that it atomically changes the sigprocmask() during the op.
*/
int pselect(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
const struct timespec *timeout, const sigset_t *sigmask) {
int rc;
sigset_t oldmask;
rc = sys_pselect(nfds, readfds, writefds, exceptfds, timeout, sigmask);
POLLTRACE("pselect(%d, %p, %p, %p, [%s], %s) → %d% m", nfds, readfds,
writefds, exceptfds, DescribeTimeval(rc, timeout),
DescribeSigset(0, sigmask), rc);
return rc;
}