github.com/goccy/go-jit@v0.0.0-20200514131505-ff78d45cf6af/internal/ccall/jit-varint.h (about)

     1  /*
     2   * jit-varint.h - Variable length integer encoding.
     3   *
     4   * Copyright (C) 2011  Aleksey Demakov
     5   *
     6   * The libjit library is free software: you can redistribute it and/or
     7   * modify it under the terms of the GNU Lesser General Public License
     8   * as published by the Free Software Foundation, either version 2.1 of
     9   * the License, or (at your option) any later version.
    10   *
    11   * The libjit library is distributed in the hope that it will be useful,
    12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    14   * Lesser General Public License for more details.
    15   *
    16   * You should have received a copy of the GNU Lesser General Public
    17   * License along with the libjit library.  If not, see
    18   * <http://www.gnu.org/licenses/>.
    19   */
    20  
    21  #ifndef _JIT_VARINT_H
    22  #define	_JIT_VARINT_H
    23  
    24  #ifdef	__cplusplus
    25  extern "C" {
    26  #endif
    27  
    28  #define	JIT_VARINT_BUFFER_SIZE		500
    29  
    30  typedef struct jit_varint_data *jit_varint_data_t;
    31  struct jit_varint_data
    32  {
    33  	jit_varint_data_t	next;
    34  	unsigned char		data[];
    35  };
    36  
    37  typedef struct jit_varint_encoder jit_varint_encoder_t;
    38  struct jit_varint_encoder
    39  {
    40  	unsigned char		buf[JIT_VARINT_BUFFER_SIZE];
    41  	int			len;
    42  	jit_varint_data_t	data;
    43  	jit_varint_data_t	last;
    44  
    45  };
    46  
    47  typedef struct jit_varint_decoder jit_varint_decoder_t;
    48  struct jit_varint_decoder
    49  {
    50  	jit_varint_data_t	data;
    51  	int			len;
    52  	int			end;
    53  };
    54  
    55  void _jit_varint_init_encoder(jit_varint_encoder_t *encoder);
    56  void _jit_varint_init_decoder(jit_varint_decoder_t *decoder, jit_varint_data_t data);
    57  int _jit_varint_encode_end(jit_varint_encoder_t *encoder);
    58  int _jit_varint_encode_uint(jit_varint_encoder_t *encoder, jit_uint value);
    59  jit_varint_data_t _jit_varint_get_data(jit_varint_encoder_t *encoder);
    60  void _jit_varint_free_data(jit_varint_data_t data);
    61  int _jit_varint_decode_end(jit_varint_decoder_t *decoder);
    62  jit_uint _jit_varint_decode_uint(jit_varint_decoder_t *decoder);
    63  
    64  
    65  #ifdef	__cplusplus
    66  }
    67  #endif
    68  
    69  #endif	/* _JIT_VARINT_H */
    70