#ifndef _LINUX_SNAPPY_H

#define _LINUX_SNAPPY_H 1

#include <stdbool.h>

#include <stddef.h>

/* Only needed for compression. This preallocates the worst case */

struct snappy_env {

	unsigned short *hash_table;

	void *scratch;

	void *scratch_output;

};

struct iovec;

int rd_kafka_snappy_init_env(struct snappy_env *env);

int rd_kafka_snappy_init_env_sg(struct snappy_env *env, bool sg);

void rd_kafka_snappy_free_env(struct snappy_env *env);

int rd_kafka_snappy_uncompress_iov(struct iovec *iov_in, int iov_in_len,

			   size_t input_len, char *uncompressed);

int rd_kafka_snappy_uncompress(const char *compressed, size_t n, char *uncompressed);

char *rd_kafka_snappy_java_uncompress (const char *inbuf, size_t inlen,

                                       size_t *outlenp,

                                       char *errstr, size_t errstr_size);

int rd_kafka_snappy_compress_iov(struct snappy_env *env,

                                 const struct iovec *iov_in, size_t iov_in_cnt,

                                 size_t input_length,

                                 struct iovec *iov_out);

bool rd_kafka_snappy_uncompressed_length(const char *buf, size_t len, size_t *result);

size_t rd_kafka_snappy_max_compressed_length(size_t source_len);

#endif