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/*
* Copyright 1999-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/***************************************************************************
* Description: ISAPI plugin for Tomcat *
* Author: Andy Armstrong <andy@tagish.com> *
* Version: $Revision: 299830 $ *
***************************************************************************/
#ifndef __poolbuf_h
#define __poolbuf_h
#include <stddef.h>
#include "jk_pool.h"
#define poolbuf__MINCHUNK 2048
typedef struct poolbuf__chunk
{
size_t size;
struct poolbuf__chunk *next;
} poolbuf__chunk;
typedef enum
{ WRITE, READ } poolbuf__state;
typedef struct
{
jk_pool_t *p;
poolbuf__chunk *head;
poolbuf__chunk *current;
/* current state */
poolbuf__state state;
/* total number of bytes available to read */
size_t avail;
/* offsets within the current chunk */
unsigned int writePos;
unsigned int readPos;
} poolbuf;
/* Initialise a poolbuf. */
void poolbuf_init(poolbuf * pb, jk_pool_t *p);
size_t poolbuf_write(poolbuf * pb, const void *buf, size_t size);
size_t poolbuf_read(poolbuf * pb, void *buf, size_t size);
size_t poolbuf_available(poolbuf * pb);
void poolbuf_destroy(poolbuf * pb);
#endif /* __poolbuf_h */
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