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Add posix_spawn (#114)

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Justine Tunney 2021-03-07 20:14:07 -08:00
parent 5f088cec23
commit 5ce83b08c8
10 changed files with 521 additions and 22 deletions
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107
libc/stdio/spawna.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 2021 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/scheduler.h"
#include "libc/calls/sigbits.h"
#include "libc/stdio/spawn.h"
#include "libc/stdio/spawna.internal.h"
/**
* Initialize object with default values.
*/
int posix_spawnattr_init(posix_spawnattr_t *attr) {
attr->posix_attr_flags = 0;
attr->posix_attr_pgroup = 0;
sigprocmask(0, NULL, &attr->posix_attr_sigmask);
sigemptyset(&attr->posix_attr_sigdefault);
attr->posix_attr_schedpolicy = sched_getscheduler(0);
sched_getparam(0, &attr->posix_attr_schedparam);
return 0;
}
int posix_spawnattr_destroy(posix_spawnattr_t *attr) {
return 0;
}
int posix_spawnattr_getflags(const posix_spawnattr_t *attr, short *flags) {
*flags = attr->posix_attr_flags;
return 0;
}
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags) {
attr->posix_attr_flags = flags;
return 0;
}
int posix_spawnattr_getpgroup(const posix_spawnattr_t *attr, int *pgroup) {
*pgroup = attr->posix_attr_pgroup;
return 0;
}
int posix_spawnattr_setpgroup(posix_spawnattr_t *attr, int pgroup) {
attr->posix_attr_pgroup = pgroup;
return 0;
}
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *attr,
int *schedpolicy) {
*schedpolicy = attr->posix_attr_schedpolicy;
return 0;
}
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr, int schedpolicy) {
attr->posix_attr_schedpolicy = schedpolicy;
return 0;
}
int posix_spawnattr_getschedparam(const posix_spawnattr_t *attr,
struct sched_param *schedparam) {
*schedparam = attr->posix_attr_schedparam;
return 0;
}
int posix_spawnattr_setschedparam(posix_spawnattr_t *attr,
const struct sched_param *schedparam) {
attr->posix_attr_schedparam = *schedparam;
return 0;
}
int posix_spawnattr_getsigmask(const posix_spawnattr_t *attr,
sigset_t *sigmask) {
*sigmask = attr->posix_attr_sigmask;
return 0;
}
int posix_spawnattr_setsigmask(posix_spawnattr_t *attr,
const sigset_t *sigmask) {
attr->posix_attr_sigmask = *sigmask;
return 0;
}
int posix_spawnattr_getsigdefault(const posix_spawnattr_t *attr,
sigset_t *sigdefault) {
*sigdefault = attr->posix_attr_sigdefault;
return 0;
}
int posix_spawnattr_setsigdefault(posix_spawnattr_t *attr,
const sigset_t *sigdefault) {
attr->posix_attr_sigdefault = *sigdefault;
return 0;
}