43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
|
|
* VaptVupt — Zupt Integration API
|
|
* SPDX-License-Identifier: GPL-3.0-or-later
|
|
* Copyright 2026 Cristian.
|
|
*
|
|
* ZUPT-COMPAT: This is the API that Zupt calls. It wraps the internal
|
|
* VaptVupt API with sensible defaults for backup workloads:
|
|
* - Checksum always enabled (data integrity is critical for backups)
|
|
* - Adaptive window selection (auto-detect optimal wlog per file)
|
|
* - Level maps to mode: 1=fast, 5=balanced, 9=extreme
|
|
*
|
|
* Usage:
|
|
* size_t bound = vvz_compress_bound(src_len);
|
|
* uint8_t *dst = malloc(bound);
|
|
* int64_t csz = vvz_compress(src, src_len, dst, bound, 5);
|
|
* int64_t dsz = vvz_decompress(dst, csz, out, out_cap);
|
|
*/
|
|
#ifndef VAPTVUPT_API_H
|
|
#define VAPTVUPT_API_H
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Compress src into dst. Returns compressed size or negative error code.
|
|
* level: 1 = fast (max speed), 5 = balanced (default), 9 = extreme (max ratio) */
|
|
int64_t vvz_compress(const uint8_t *src, size_t src_len,
|
|
uint8_t *dst, size_t dst_cap, int level);
|
|
|
|
/* Decompress src into dst. Returns decompressed size or negative error code. */
|
|
int64_t vvz_decompress(const uint8_t *src, size_t src_len,
|
|
uint8_t *dst, size_t dst_cap);
|
|
|
|
/* Upper bound on compressed size for a given input length. */
|
|
size_t vvz_compress_bound(size_t src_len);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* VAPTVUPT_API_H */
|