You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
851 B
50 lines
851 B
#pragma once
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
struct auto_buf {
|
|
FILE *handle;
|
|
char *data;
|
|
size_t size;
|
|
};
|
|
|
|
static inline void auto_buf_copy(struct auto_buf *dest, struct auto_buf *source) {
|
|
if (dest == NULL || source == NULL) return;
|
|
fwrite(source->data, 1, source->size, dest->handle);
|
|
fflush(dest->handle);
|
|
}
|
|
|
|
static inline int
|
|
auto_buf_init(struct auto_buf *buf)
|
|
{
|
|
FILE *res = open_memstream(&buf->data, &buf->size);
|
|
if (res == NULL) return errno;
|
|
|
|
buf->handle = res;
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
auto_buf_flush(struct auto_buf *buf)
|
|
{
|
|
return fflush(buf->handle);
|
|
}
|
|
|
|
static inline void
|
|
auto_buf_deinit(struct auto_buf *buf)
|
|
{
|
|
if (likely(buf->handle != NULL)) {
|
|
fclose(buf->handle);
|
|
buf->handle = NULL;
|
|
}
|
|
|
|
if (likely(buf->data != NULL)) {
|
|
free(buf->data);
|
|
buf->data = NULL;
|
|
}
|
|
|
|
buf->size = 0;
|
|
}
|