mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-24 23:26:41 +00:00
109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/* libanode: the Anode C reference implementation
|
|
* Copyright (C) 2009 Adam Ierymenko <adam.ierymenko@gmail.com>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SPARK_STREAMENCODER_H
|
|
#define _SPARK_STREAMENCODER_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct
|
|
{
|
|
unsigned char *input_buf;
|
|
unsigned long input_buf_capacity;
|
|
unsigned long input_length;
|
|
|
|
unsigned char *stream_out_buf;
|
|
unsigned long stream_out_buf_capacity;
|
|
unsigned long stream_out_length;
|
|
|
|
void (*data_segment_add_func)(const void *data,unsigned long len,const void *global_hash,unsigned long global_hash_len);
|
|
} SparkStreamEncoder;
|
|
|
|
/**
|
|
* Initialize a spark stream encoder
|
|
*
|
|
* @param enc Encoder structure to initialize
|
|
* @param data_segment_add_func Function to call to store or cache data
|
|
*/
|
|
void SparkStreamEncoder_init(
|
|
SparkStreamEncoder *enc,
|
|
void (*data_segment_add_func)(
|
|
const void *data,
|
|
unsigned long len,
|
|
const void *global_hash,
|
|
unsigned long global_hash_len));
|
|
|
|
/**
|
|
* Clean up a spark stream encoder structure
|
|
*
|
|
* @param enc Structure to clear
|
|
*/
|
|
void SparkStreamEncoder_destroy(SparkStreamEncoder *enc);
|
|
|
|
/**
|
|
* Add data to encode
|
|
*
|
|
* @param enc Encoder structure
|
|
* @param data Data to encode
|
|
* @param len Length of data in bytes
|
|
* @return Number of bytes of result stream now available
|
|
*/
|
|
unsigned long SparkStreamEncoder_put(
|
|
SparkStreamEncoder *enc,
|
|
const void *data,
|
|
unsigned long len);
|
|
|
|
/**
|
|
* Flush all data currently in input buffer
|
|
*
|
|
* @param enc Encoder structure to flush
|
|
*/
|
|
void SparkStreamEncoder_flush(SparkStreamEncoder *enc);
|
|
|
|
/**
|
|
* @return Number of bytes of output stream available
|
|
*/
|
|
static inline unsigned long SparkStreamEncoder_available(SparkStreamEncoder *enc)
|
|
{
|
|
return enc->stream_out_length;
|
|
}
|
|
|
|
/**
|
|
* @return Pointer to result stream bytes (may return null if none available)
|
|
*/
|
|
static inline const void *SparkStreamEncoder_get(SparkStreamEncoder *enc)
|
|
{
|
|
return (const void *)(enc->stream_out_buf);
|
|
}
|
|
|
|
/**
|
|
* @return "Consume" result stream bytes after they're read or sent
|
|
*/
|
|
static inline void SparkStreamEncoder_consume(SparkStreamEncoder *enc,unsigned long len)
|
|
{
|
|
unsigned long i;
|
|
for(i=len;i<enc->stream_out_length;++i)
|
|
enc->stream_out_buf[i - len] = enc->stream_out_buf[i];
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|