wehub-resource-sync
26 lines
1.1 KiB
C
26 lines
1.1 KiB
C
#ifndef CBM_ZSTD_STORE_H
|
|
#define CBM_ZSTD_STORE_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
// Zstd compression at specified level (1=fast .. 22=best).
|
|
// Returns compressed size on success, 0 on error.
|
|
int cbm_zstd_compress(const char *src, int srcLen, char *dst, int dstCap, int level);
|
|
|
|
// Zstd decompression. srcLen/dstCap are size_t so a >2 GiB destination capacity
|
|
// is never truncated (a large DB artifact, or a crafted one, would otherwise
|
|
// wrap through int and desync the real buffer size from the decoder capacity).
|
|
// Returns decompressed size on success (>0), 0 on error.
|
|
int64_t cbm_zstd_decompress(const char *src, size_t srcLen, char *dst, size_t dstCap);
|
|
|
|
// Declared decompressed content size of a zstd frame (from its header), or 0
|
|
// when unknown/unreadable. Lets the caller size the destination from the frame
|
|
// itself instead of trusting a separate, attacker-controllable size field.
|
|
size_t cbm_zstd_frame_content_size(const char *src, size_t srcLen);
|
|
|
|
// Maximum compressed size bound for given input size.
|
|
size_t cbm_zstd_compress_bound(int inputSize);
|
|
|
|
#endif // CBM_ZSTD_STORE_H
|