95 lines
4.9 KiB
C
95 lines
4.9 KiB
C
/*
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* Copyright (c) 2021, Redis Labs Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SRC_RESP_PARSER_H_
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#define SRC_RESP_PARSER_H_
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#include <stddef.h>
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typedef struct ReplyParser ReplyParser;
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typedef struct ReplyParserCallbacks {
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/* Called when the parser reaches an empty mbulk ('*-1') */
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void (*null_array_callback)(void *ctx, const char *proto, size_t proto_len);
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/* Called when the parser reaches an empty bulk ('$-1') (bulk len is -1) */
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void (*null_bulk_string_callback)(void *ctx, const char *proto, size_t proto_len);
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/* Called when the parser reaches a bulk ('$'), which is passed as 'str' along with its length 'len' */
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void (*bulk_string_callback)(void *ctx, const char *str, size_t len, const char *proto, size_t proto_len);
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/* Called when the parser reaches an error ('-'), which is passed as 'str' along with its length 'len' */
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void (*error_callback)(void *ctx, const char *str, size_t len, const char *proto, size_t proto_len);
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/* Called when the parser reaches a simple string ('+'), which is passed as 'str' along with its length 'len' */
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void (*simple_str_callback)(void *ctx, const char *str, size_t len, const char *proto, size_t proto_len);
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/* Called when the parser reaches a long long value (':'), which is passed as an argument 'val' */
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void (*long_callback)(void *ctx, long long val, const char *proto, size_t proto_len);
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/* Called when the parser reaches an array ('*'). The array length is passed as an argument 'len' */
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void (*array_callback)(struct ReplyParser *parser, void *ctx, size_t len, const char *proto);
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/* Called when the parser reaches a set ('~'). The set length is passed as an argument 'len' */
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void (*set_callback)(struct ReplyParser *parser, void *ctx, size_t len, const char *proto);
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/* Called when the parser reaches a map ('%'). The map length is passed as an argument 'len' */
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void (*map_callback)(struct ReplyParser *parser, void *ctx, size_t len, const char *proto);
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/* Called when the parser reaches a bool ('#'), which is passed as an argument 'val' */
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void (*bool_callback)(void *ctx, int val, const char *proto, size_t proto_len);
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/* Called when the parser reaches a double (','), which is passed as an argument 'val' */
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void (*double_callback)(void *ctx, double val, const char *proto, size_t proto_len);
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/* Called when the parser reaches a big number ('('), which is passed as 'str' along with its length 'len' */
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void (*big_number_callback)(void *ctx, const char *str, size_t len, const char *proto, size_t proto_len);
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/* Called when the parser reaches a string ('='), which is passed as 'str' along with its 'format' and length 'len' */
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void (*verbatim_string_callback)(void *ctx, const char *format, const char *str, size_t len, const char *proto, size_t proto_len);
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/* Called when the parser reaches an attribute ('|'). The attribute length is passed as an argument 'len' */
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void (*attribute_callback)(struct ReplyParser *parser, void *ctx, size_t len, const char *proto);
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/* Called when the parser reaches a null ('_') */
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void (*null_callback)(void *ctx, const char *proto, size_t proto_len);
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void (*error)(void *ctx);
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} ReplyParserCallbacks;
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struct ReplyParser {
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/* The current location in the reply buffer, needs to be set to the beginning of the reply */
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const char *curr_location;
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ReplyParserCallbacks callbacks;
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};
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int parseReply(ReplyParser *parser, void *p_ctx);
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#endif /* SRC_RESP_PARSER_H_ */
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