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SaveState: Ask to include xxhash in frames.

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Hopefully this should detect any decompression errors better.
This commit is contained in:
Unknown W. Brackets committed 2021-08-06 23:42:43 -07:00
1 parent 1e9a391f65
commit 0097772d3c
1 file changed
+28 -6
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Common/Serialize/Serializer.cpp
+28 -6
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@@ -31,7 +31,7 @@ enum class SerializeCompressType {
ZSTD = 2,
};
static constexpr SerializeCompressType SAVE_TYPE = SerializeCompressType::SNAPPY;
static constexpr SerializeCompressType SAVE_TYPE = SerializeCompressType::ZSTD;
PointerWrapSection PointerWrap::Section(const char *title, int ver) {
return Section(title, ver, ver);
@@ -371,21 +371,43 @@ CChunkFileReader::Error CChunkFileReader::SaveFile(const Path &filename, const s
write_len = sz;
usedType = SerializeCompressType::NONE;
} else {
bool success = true;
switch (usedType) {
case SerializeCompressType::NONE:
_assert_(false);
break;
case SerializeCompressType::SNAPPY:
snappy_compress((const char *)buffer, sz, (char *)compressed_buffer, &write_len);
success = snappy_compress((const char *)buffer, sz, (char *)compressed_buffer, &write_len) == SNAPPY_OK;
break;
case SerializeCompressType::ZSTD:
// TODO: If free disk space is low, we could max this out to 22?
write_len = ZSTD_compress(compressed_buffer, write_len, buffer, sz, 1);
{
auto ctx = ZSTD_createCCtx();
if (!ctx) {
success = false;
} else {
ZSTD_CCtx_setParameter(ctx, ZSTD_c_compressionLevel, 1);
ZSTD_CCtx_setParameter(ctx, ZSTD_c_checksumFlag, 1);
ZSTD_CCtx_setPledgedSrcSize(ctx, sz);
// TODO: If free disk space is low, we could max this out to 22?
write_len = ZSTD_compress2(ctx, compressed_buffer, write_len, buffer, sz);
success = !ZSTD_isError(write_len);
}
ZSTD_freeCCtx(ctx);
}
break;
}
free(buffer);
write_buffer = compressed_buffer;
if (success) {
free(buffer);
write_buffer = compressed_buffer;
} else {
ERROR_LOG(SAVESTATE, "ChunkReader: Compression failed");
free(compressed_buffer);
// We can still save uncompressed.
write_len = sz;
usedType = SerializeCompressType::NONE;
}
}
// Create header