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/*
* Copyright 2008-2013 Various Authors
* Copyright 2008 Timo Hirvonen
*
* This code is largely based on strbuf in the GIT version control system.
*
* This program 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 2 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 <http://www.gnu.org/licenses/>.
*/
#ifndef CMUS_GBUF_H
#define CMUS_GBUF_H
#include "compiler.h"
#include <stddef.h> /* size_t */
struct gbuf {
char *buffer;
size_t alloc;
size_t len;
};
extern char gbuf_empty_buffer[];
#define GBUF(name) struct gbuf name = { gbuf_empty_buffer, 0, 0 }
static inline void gbuf_clear(struct gbuf *buf)
{
buf->len = 0;
buf->buffer[0] = 0;
}
static inline size_t gbuf_avail(struct gbuf *buf)
{
if (buf->alloc)
return buf->alloc - buf->len - 1;
return 0;
}
void gbuf_grow(struct gbuf *buf, size_t more);
void gbuf_free(struct gbuf *buf);
void gbuf_add_ch(struct gbuf *buf, char ch);
void gbuf_add_bytes(struct gbuf *buf, const void *data, size_t len);
void gbuf_add_str(struct gbuf *buf, const char *str);
void gbuf_addf(struct gbuf *buf, const char *fmt, ...) CMUS_FORMAT(2, 3);
void gbuf_set(struct gbuf *buf, int c, size_t count);
char *gbuf_steal(struct gbuf *buf);
#endif
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