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Introduce sigtimedwait() and sigwaitinfo()

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This change also invents sigcountset() and strsignal_r() and improves
the quality of siginfo_t handling.
This commit is contained in:
Justine Tunney 2022-10-10 07:36:07 -07:00
parent 7ae556463a
commit 467a332e38
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GPG key ID: BE714B4575D6E328
41 changed files with 887 additions and 345 deletions
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106
libc/calls/siginfo2cosmo.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/struct/siginfo-meta.internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/dce.h"
#include "libc/sysv/consts/sig.h"
privileged void __siginfo2cosmo(struct siginfo *si,
const union siginfo_meta *m) {
void *si_addr;
int32_t si_signo;
int32_t si_errno;
int32_t si_code;
int32_t si_pid;
int32_t si_uid;
int32_t si_status;
int32_t si_timerid;
int32_t si_overrun;
union sigval si_value;
if (IsLinux()) {
*si = m->linux;
return;
} else if (IsFreebsd()) {
si_signo = m->freebsd.si_signo;
si_errno = m->freebsd.si_errno;
si_code = m->freebsd.si_code;
si_pid = m->freebsd.si_pid;
si_uid = m->freebsd.si_uid;
si_status = m->freebsd.si_status;
si_timerid = m->freebsd.si_timerid;
si_overrun = m->freebsd.si_overrun;
si_addr = m->freebsd.si_addr;
si_value = m->freebsd.si_value;
} else if (IsXnu()) {
si_signo = m->xnu.si_signo;
si_errno = m->xnu.si_errno;
si_code = m->xnu.si_code;
si_pid = m->xnu.si_pid;
si_uid = m->xnu.si_uid;
si_status = m->xnu.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->xnu.si_addr;
si_value = m->xnu.si_value;
} else if (IsOpenbsd()) {
si_signo = m->openbsd.si_signo;
si_errno = m->openbsd.si_errno;
si_code = m->openbsd.si_code;
si_pid = m->openbsd.si_pid;
si_uid = m->openbsd.si_uid;
si_status = m->openbsd.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->openbsd.si_addr;
si_value = m->openbsd.si_value;
} else if (IsNetbsd()) {
si_signo = m->netbsd.si_signo;
si_errno = m->netbsd.si_errno;
si_code = m->netbsd.si_code;
si_pid = m->netbsd.si_pid;
si_uid = m->netbsd.si_uid;
si_status = m->netbsd.si_status;
si_timerid = 0;
si_overrun = 0;
si_addr = m->netbsd.si_addr;
si_value = m->netbsd.si_value;
} else {
notpossible;
}
*si = (struct siginfo){0};
si->si_signo = si_signo;
si->si_errno = si_errno;
si->si_code = si_code;
si->si_value = si_value;
if (si_signo == SIGILL || //
si_signo == SIGFPE || //
si_signo == SIGSEGV || //
si_signo == SIGBUS || //
si_signo == SIGTRAP) {
si->si_addr = si_addr;
} else if (si_signo == SIGALRM) {
si->si_timerid = si_timerid;
si->si_overrun = si_overrun;
} else {
si->si_pid = si_pid;
si->si_uid = si_uid;
}
}