~FileRead()
{
m_exit.store( true, std::memory_order_relaxed );
m_decThread.join();
fclose( m_file );
LZ4_freeStreamDecode( m_stream );
}
static void test_decompress(
FILE* outFp,
FILE* inpFp,
size_t messageMaxBytes,
size_t ringBufferBytes)
{
LZ4_streamDecode_t* const lz4StreamDecode = LZ4_createStreamDecode();
char* const cmpBuf = (char*) malloc(LZ4_COMPRESSBOUND(messageMaxBytes));
char* const decBuf = (char*) malloc(ringBufferBytes);
int decOffset = 0;
for ( ; ; )
{
uint16_t cmpBytes = 0;
if (read_uint16(inpFp, &cmpBytes) != 1) break;
if (cmpBytes <= 0) break;
if (read_bin(inpFp, cmpBuf, cmpBytes) != cmpBytes) break;
{
char* const decPtr = &decBuf[decOffset];
const int decBytes = LZ4_decompress_safe_continue(
lz4StreamDecode, cmpBuf, decPtr, cmpBytes, (int) messageMaxBytes);
if (decBytes <= 0) break;
write_bin(outFp, decPtr, decBytes);
// Add and wraparound the ringbuffer offset
decOffset += decBytes;
if ((size_t)decOffset >= ringBufferBytes - messageMaxBytes) decOffset = 0;
}
}
free(decBuf);
free(cmpBuf);
LZ4_freeStreamDecode(lz4StreamDecode);
}
