skarg
89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/*####COPYRIGHTBEGIN####
|
|
-------------------------------------------
|
|
Copyright (C) 2005 by Steve Karg
|
|
|
|
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, write to:
|
|
The Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307
|
|
USA.
|
|
|
|
As a special exception, if other files instantiate templates or
|
|
use macros or inline functions from this file, or you compile
|
|
this file and link it with other works to produce a work based
|
|
on this file, this file does not by itself cause the resulting
|
|
work to be covered by the GNU General Public License. However
|
|
the source code for this file must still be made available in
|
|
accordance with section (3) of the GNU General Public License.
|
|
|
|
This exception does not invalidate any other reasons why a work
|
|
based on this file might be covered by the GNU General Public
|
|
License.
|
|
-------------------------------------------
|
|
####COPYRIGHTEND####*/
|
|
|
|
/* Functional Description: Static buffer library for deeply
|
|
embedded system. See the unit tests for usage examples. */
|
|
|
|
#ifndef SBUF_H
|
|
#define SBUF_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
struct static_buffer_t {
|
|
char *data; /* block of memory or array of data */
|
|
unsigned size; /* actual size, in bytes, of the block of data */
|
|
unsigned count; /* number of bytes in use */
|
|
};
|
|
typedef struct static_buffer_t STATIC_BUFFER;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
void sbuf_init(
|
|
STATIC_BUFFER * b, /* static buffer structure */
|
|
char *data, /* actual size, in bytes, of the data block or array of data */
|
|
unsigned size); /* number of bytes used */
|
|
/* returns true if size==0, false if size > 0 */
|
|
bool sbuf_empty(
|
|
STATIC_BUFFER const *b);
|
|
char *sbuf_data(
|
|
STATIC_BUFFER const *b);
|
|
unsigned sbuf_size(
|
|
STATIC_BUFFER * b);
|
|
unsigned sbuf_count(
|
|
STATIC_BUFFER * b);
|
|
/* returns true if successful, false if not enough room to append data */
|
|
bool sbuf_put(
|
|
STATIC_BUFFER * b, /* static buffer structure */
|
|
unsigned offset, /* where to start */
|
|
char *data, /* number of bytes used */
|
|
unsigned data_size); /* how many to add */
|
|
/* returns true if successful, false if not enough room to append data */
|
|
bool sbuf_append(
|
|
STATIC_BUFFER * b, /* static buffer structure */
|
|
char *data, /* number of bytes used */
|
|
unsigned data_size); /* how many to add */
|
|
/* returns true if successful, false if not enough room to append data */
|
|
bool sbuf_truncate(
|
|
STATIC_BUFFER * b, /* static buffer structure */
|
|
unsigned count); /* total number of bytes in use */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
#endif
|