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out.c
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out.c
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/* Copyright 2024 Oğuz İsmail Uysal <oguzismailuysal@gmail.com>
*
* This file is part of Rachel.
*
* Rachel is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef GENERIC
#include <stddef.h>
#ifndef STATIC
#include <errno.h>
#include <stdlib.h>
#if _WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
#else
#include "crt.h"
#endif
#include "os.h"
static char a[128];
static size_t n;
static void
full_write(int fd, const char *buf, size_t count, int retry) {
size_t i, ret;
for (i = 0; i < count; ) {
ret = write(fd, &buf[i], count-i);
if (ret != -1) {
i += ret;
continue;
}
if (retry && errno == EINTR)
continue;
if (fd == 2)
break;
EPUTS("write error" EOL);
EXIT(2);
}
}
void
flush(void) {
full_write(1, a, n, 1);
n = 0;
}
static void
buffer(const char *p) {
for (; *p; p++) {
if (n >= sizeof a)
flush();
a[n++] = *p;
if (*p == '\n')
flush();
}
}
void
print_string(int fd, const char *s) {
size_t len;
if (fd == 1) {
buffer(s);
}
else {
for (len = 0; s[len]; len++);
full_write(fd, s, len, 0);
}
}
void
print_number(int fd, long x) {
static char buf[32];
char *p;
p = &buf[sizeof(buf)-1];
do {
*--p = '0' + x%10;
x /= 10;
}
while (x > 0);
print_string(fd, p);
}
#endif