/* -*- c-basic-offset: 2 -*- */
/*
Copyright ( C ) 2015 - 2016 Brazil
This library is free software ; you can redistribute it and / or
modify it under the terms of the GNU Lesser General Public
License version 2 . 1 as published by the Free Software Foundation .
This library 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
Lesser General Public License for more details .
You should have received a copy of the GNU Lesser General Public
License along with this library ; if not , write to the Free Software
Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1335 USA
*/
#pragma once
#include "../grn.h"
#include "ts_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*-------------------------------------------------------------
* grn_ts_buf
*/
/* grn_ts_buf works as a buffer for arbitrary data. */
typedef struct {
void *ptr; /* The starting address. */
size_t size; /* The size in bytes. */
size_t pos; /* The current position for grn_ts_buf_write(). */
} grn_ts_buf;
/* grn_ts_buf_init() initializes a buffer. */
void grn_ts_buf_init(grn_ctx *ctx, grn_ts_buf *buf);
/* grn_ts_buf_fin() finalizes a buffer. */
void grn_ts_buf_fin(grn_ctx *ctx, grn_ts_buf *buf);
#if 0
/* grn_ts_buf_open() creates a buffer. */
grn_rc grn_ts_buf_open(grn_ctx *ctx, grn_ts_buf **buf);
/* grn_ts_buf_close() destroys a buffer. */
void grn_ts_buf_close(grn_ctx *ctx, grn_ts_buf *buf);
#endif
/*
* grn_ts_buf_reserve ( ) reserves enough memory to store ` min_size ` bytes .
* Note that this function never shrinks a buffer and does nothing if
* ` min_size ` is not greater than ` buf - > size ` .
*/
grn_rc grn_ts_buf_reserve(grn_ctx *ctx, grn_ts_buf *buf, size_t min_size);
/* grn_ts_buf_resize() resizes a buffer. */
grn_rc grn_ts_buf_resize(grn_ctx *ctx, grn_ts_buf *buf, size_t new_size);
/*
* grn_ts_buf_write ( ) writes data into a buffer . ` buf - > pos ` specifies the
* position and it will be modified on success .
* Note that this function resizes a buffer if required .
*/
grn_rc grn_ts_buf_write(grn_ctx *ctx, grn_ts_buf *buf,
const void *ptr, size_t size);
/*-------------------------------------------------------------
* grn_ts_rbuf
*/
/* grn_ts_rbuf works as a buffer for records. */
typedef struct {
grn_ts_record *recs; /* Pointer to records. */
size_t n_recs; /* The number of records. */
size_t max_n_recs; /* The maximum number of records. */
} grn_ts_rbuf;
/* grn_ts_rbuf_init() initializes a buffer. */
void grn_ts_rbuf_init(grn_ctx *ctx, grn_ts_rbuf *rbuf);
/* grn_ts_rbuf_fin() finalizes a buffer. */
void grn_ts_rbuf_fin(grn_ctx *ctx, grn_ts_rbuf *rbuf);
/* grn_ts_rbuf_open() creates a buffer. */
/*grn_rc grn_ts_rbuf_open(grn_ctx *ctx, grn_ts_rbuf **rbuf);*/
/* grn_ts_rbuf_close() destroys a buffer. */
/*void grn_ts_rbuf_close(grn_ctx *ctx, grn_ts_rbuf *rbuf);*/
/*
* grn_ts_rbuf_reserve ( ) reserves enough memory to store ` n_recs ` records .
* Note that this function never shrinks a buffer and does nothing if ` n_recs `
* is not greater than the ` rbuf - > max_n_recs ` .
*/
grn_rc grn_ts_rbuf_reserve(grn_ctx *ctx, grn_ts_rbuf *rbuf, size_t n_recs);
/* grn_ts_rbuf_resize() resizes a buffer. */
grn_rc grn_ts_rbuf_resize(grn_ctx *ctx, grn_ts_rbuf *rbuf,
size_t new_max_n_recs);
#ifdef __cplusplus
}
#endif
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