mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-10-25 18:50:57 +00:00
43 lines
2.2 KiB
C
43 lines
2.2 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/errno.h"
|
|
#include "libc/x/x.h"
|
|
|
|
/**
|
|
* Writes data uninterruptibly.
|
|
*
|
|
* @return 0 on success, or -1 w/ errno
|
|
*/
|
|
int xwrite(int fd, const void *p, uint64_t n) {
|
|
int64_t i;
|
|
uint64_t m;
|
|
const char *buf;
|
|
buf = p;
|
|
while (n) {
|
|
m = n;
|
|
do {
|
|
i = write(fd, buf, m);
|
|
} while (i < 0 && errno == EINTR);
|
|
if (i < 0) return -1;
|
|
buf += i;
|
|
n -= i;
|
|
}
|
|
return 0;
|
|
}
|