130 lines
4.8 KiB
C
130 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 2009-2011, Salvatore Sanfilippo <antirez at gmail dot com>
|
|
* Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Redis nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
|
|
#ifndef __HIREDIS_READ_H
|
|
#define __HIREDIS_READ_H
|
|
#include <stdio.h> /* for size_t */
|
|
|
|
#define REDIS_ERR -1
|
|
#define REDIS_OK 0
|
|
|
|
/* When an error occurs, the err flag in a context is set to hold the type of
|
|
* error that occurred. REDIS_ERR_IO means there was an I/O error and you
|
|
* should use the "errno" variable to find out what is wrong.
|
|
* For other values, the "errstr" field will hold a description. */
|
|
#define REDIS_ERR_IO 1 /* Error in read or write */
|
|
#define REDIS_ERR_EOF 3 /* End of file */
|
|
#define REDIS_ERR_PROTOCOL 4 /* Protocol error */
|
|
#define REDIS_ERR_OOM 5 /* Out of memory */
|
|
#define REDIS_ERR_TIMEOUT 6 /* Timed out */
|
|
#define REDIS_ERR_OTHER 2 /* Everything else... */
|
|
|
|
#define REDIS_REPLY_STRING 1
|
|
#define REDIS_REPLY_ARRAY 2
|
|
#define REDIS_REPLY_INTEGER 3
|
|
#define REDIS_REPLY_NIL 4
|
|
#define REDIS_REPLY_STATUS 5
|
|
#define REDIS_REPLY_ERROR 6
|
|
#define REDIS_REPLY_DOUBLE 7
|
|
#define REDIS_REPLY_BOOL 8
|
|
#define REDIS_REPLY_MAP 9
|
|
#define REDIS_REPLY_SET 10
|
|
#define REDIS_REPLY_ATTR 11
|
|
#define REDIS_REPLY_PUSH 12
|
|
#define REDIS_REPLY_BIGNUM 13
|
|
#define REDIS_REPLY_VERB 14
|
|
|
|
/* Default max unused reader buffer. */
|
|
#define REDIS_READER_MAX_BUF (1024*16)
|
|
|
|
/* Default multi-bulk element limit */
|
|
#define REDIS_READER_MAX_ARRAY_ELEMENTS ((1LL<<32) - 1)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct redisReadTask {
|
|
int type;
|
|
long long elements; /* number of elements in multibulk container */
|
|
int idx; /* index in parent (array) object */
|
|
void *obj; /* holds user-generated value for a read task */
|
|
struct redisReadTask *parent; /* parent task */
|
|
void *privdata; /* user-settable arbitrary field */
|
|
} redisReadTask;
|
|
|
|
typedef struct redisReplyObjectFunctions {
|
|
void *(*createString)(const redisReadTask*, char*, size_t);
|
|
void *(*createArray)(const redisReadTask*, size_t);
|
|
void *(*createInteger)(const redisReadTask*, long long);
|
|
void *(*createDouble)(const redisReadTask*, double, char*, size_t);
|
|
void *(*createNil)(const redisReadTask*);
|
|
void *(*createBool)(const redisReadTask*, int);
|
|
void (*freeObject)(void*);
|
|
} redisReplyObjectFunctions;
|
|
|
|
typedef struct redisReader {
|
|
int err; /* Error flags, 0 when there is no error */
|
|
char errstr[128]; /* String representation of error when applicable */
|
|
|
|
char *buf; /* Read buffer */
|
|
size_t pos; /* Buffer cursor */
|
|
size_t len; /* Buffer length */
|
|
size_t maxbuf; /* Max length of unused buffer */
|
|
long long maxelements; /* Max multi-bulk elements */
|
|
|
|
redisReadTask **task;
|
|
int tasks;
|
|
|
|
int ridx; /* Index of current read task */
|
|
void *reply; /* Temporary reply pointer */
|
|
|
|
redisReplyObjectFunctions *fn;
|
|
void *privdata;
|
|
} redisReader;
|
|
|
|
/* Public API for the protocol parser. */
|
|
redisReader *redisReaderCreateWithFunctions(redisReplyObjectFunctions *fn);
|
|
void redisReaderFree(redisReader *r);
|
|
int redisReaderFeed(redisReader *r, const char *buf, size_t len);
|
|
int redisReaderGetReply(redisReader *r, void **reply);
|
|
|
|
#define redisReaderSetPrivdata(_r, _p) (int)(((redisReader*)(_r))->privdata = (_p))
|
|
#define redisReaderGetObject(_r) (((redisReader*)(_r))->reply)
|
|
#define redisReaderGetError(_r) (((redisReader*)(_r))->errstr)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|