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/*
* MessagePack for Ruby
*
* Copyright (C) 2008-2012 FURUHASHI Sadayuki
*
* 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.
*/
#ifndef MSGPACK_RUBY_UNPACKER_H__
#define MSGPACK_RUBY_UNPACKER_H__
#include "buffer.h"
#ifndef MSGPACK_UNPACKER_STACK_CAPACITY
#define MSGPACK_UNPACKER_STACK_CAPACITY 128
#endif
struct msgpack_unpacker_t;
typedef struct msgpack_unpacker_t msgpack_unpacker_t;
enum stack_type_t {
STACK_TYPE_ARRAY,
STACK_TYPE_MAP_KEY,
STACK_TYPE_MAP_VALUE,
};
typedef struct {
size_t count;
enum stack_type_t type;
VALUE object;
VALUE key;
} msgpack_unpacker_stack_t;
struct msgpack_unpacker_t {
msgpack_buffer_t buffer;
unsigned int head_byte;
msgpack_unpacker_stack_t* stack;
size_t stack_depth;
size_t stack_capacity;
VALUE last_object;
VALUE reading_raw;
size_t reading_raw_remaining;
bool reading_raw_string_hint;
VALUE buffer_ref;
};
#define UNPACKER_BUFFER_(uk) (&(uk)->buffer)
enum msgpack_unpacker_object_type {
TYPE_NIL = 0,
TYPE_BOOLEAN,
TYPE_INTEGER,
TYPE_FLOAT,
TYPE_RAW,
TYPE_ARRAY,
TYPE_MAP,
};
void msgpack_unpacker_static_init();
void msgpack_unpacker_static_destroy();
void msgpack_unpacker_init(msgpack_unpacker_t* uk);
void msgpack_unpacker_destroy(msgpack_unpacker_t* uk);
void msgpack_unpacker_mark(msgpack_unpacker_t* uk);
void msgpack_unpacker_reset(msgpack_unpacker_t* uk);
/* error codes */
#define PRIMITIVE_CONTAINER_START 1
#define PRIMITIVE_OBJECT_COMPLETE 0
#define PRIMITIVE_EOF -1
#define PRIMITIVE_INVALID_BYTE -2
#define PRIMITIVE_STACK_TOO_DEEP -3
#define PRIMITIVE_UNEXPECTED_TYPE -4
int msgpack_unpacker_read(msgpack_unpacker_t* uk, size_t target_stack_depth);
int msgpack_unpacker_skip(msgpack_unpacker_t* uk, size_t target_stack_depth);
static inline VALUE msgpack_unpacker_get_last_object(msgpack_unpacker_t* uk)
{
return uk->last_object;
}
int msgpack_unpacker_peek_next_object_type(msgpack_unpacker_t* uk);
int msgpack_unpacker_skip_nil(msgpack_unpacker_t* uk);
int msgpack_unpacker_read_array_header(msgpack_unpacker_t* uk, uint32_t* result_size);
int msgpack_unpacker_read_map_header(msgpack_unpacker_t* uk, uint32_t* result_size);
#endif