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.
78 lines
2.1 KiB
78 lines
2.1 KiB
4 months ago
|
/*
|
||
|
|
* $Id: printbuf.h,v 1.4 2006/01/26 02:16:28 mclark Exp $
|
||
|
|
*
|
||
|
|
* Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
|
||
|
|
* Michael Clark <michael@metaparadigm.com>
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the MIT license. See COPYING for details.
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Copyright (c) 2008-2009 Yahoo! Inc. All rights reserved.
|
||
|
|
* The copyrights to the contents of this file are licensed under the MIT License
|
||
|
|
* (http://www.opensource.org/licenses/mit-license.php)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _printbuf_h_
|
||
|
|
#define _printbuf_h_
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct printbuf {
|
||
|
|
char *buf;
|
||
|
|
int bpos;
|
||
|
|
int size;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern struct printbuf*
|
||
|
|
printbuf_new(void);
|
||
|
|
|
||
|
|
/* As an optimization, printbuf_memappend_fast is defined as a macro
|
||
|
|
* that handles copying data if the buffer is large enough; otherwise
|
||
|
|
* it invokes printbuf_memappend_real() which performs the heavy
|
||
|
|
* lifting of realloc()ing the buffer and copying data.
|
||
|
|
* Your code should not use printbuf_memappend directly--use
|
||
|
|
* printbuf_memappend_fast instead.
|
||
|
|
*/
|
||
|
|
extern int
|
||
|
|
printbuf_memappend(struct printbuf *p, const char *buf, int size);
|
||
|
|
|
||
|
|
#define printbuf_memappend_fast(p, bufptr, bufsize) \
|
||
|
|
do { \
|
||
|
|
if ((p->size - p->bpos) > bufsize) { \
|
||
|
|
memcpy(p->buf + p->bpos, (bufptr), bufsize); \
|
||
|
|
p->bpos += bufsize; \
|
||
|
|
p->buf[p->bpos]= '\0'; \
|
||
|
|
} else { printbuf_memappend(p, (bufptr), bufsize); } \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define printbuf_length(p) ((p)->bpos)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set len bytes of the buffer to charvalue, starting at offset offset.
|
||
|
|
* Similar to calling memset(x, charvalue, len);
|
||
|
|
*
|
||
|
|
* The memory allocated for the buffer is extended as necessary.
|
||
|
|
*
|
||
|
|
* If offset is -1, this starts at the end of the current data in the buffer.
|
||
|
|
*/
|
||
|
|
extern int
|
||
|
|
printbuf_memset(struct printbuf *pb, int offset, int charvalue, int len);
|
||
|
|
|
||
|
|
extern int
|
||
|
|
sprintbuf(struct printbuf *p, const char *msg, ...);
|
||
|
|
|
||
|
|
extern void
|
||
|
|
printbuf_reset(struct printbuf *p);
|
||
|
|
|
||
|
|
extern void
|
||
|
|
printbuf_free(struct printbuf *p);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|