// hash manipulators
//-------------------------------------------------
// reset - reset the hash collection to an empty
// set of hashes and flags
//-------------------------------------------------
public void reset()
{
m_flags = "";
m_has_crc32 = false;
m_has_sha1 = false;
m_creator = null;
}
} //void compute(const uint8_t *data, uint32_t length, const char *types = nullptr) { begin(types); buffer(data, length); end(); }
// internal helpers
//-------------------------------------------------
// copyfrom - copy everything from another
// collection
//-------------------------------------------------
void copyfrom(hash_collection src)
{
// copy flags directly
m_flags = src.m_flags;
// copy hashes
m_has_crc32 = src.m_has_crc32;
m_crc32 = src.m_crc32;
m_has_sha1 = src.m_has_sha1;
m_sha1 = src.m_sha1;
// don't copy creators
m_creator = null;
}
// creation
//-------------------------------------------------
// begin - begin hashing
//-------------------------------------------------
void begin(string types = null)
{
// nuke previous creator and make a new one
//delete m_creator;
m_creator = new hash_creator();
// by default use all types
if (string.IsNullOrEmpty(types))
{
m_creator.m_doing_crc32 = true;
m_creator.m_doing_sha1 = true;
}
// otherwise, just allocate the ones that are specified
else
{
m_creator.m_doing_crc32 = types.IndexOf(HASH_CRC) != -1;
m_creator.m_doing_sha1 = types.IndexOf(HASH_SHA1) != -1;
}
}
//-------------------------------------------------
// end - stop hashing
//-------------------------------------------------
void end()
{
//assert(m_creator != NULL);
// finish up the CRC32
if (m_creator.m_doing_crc32)
{
m_has_crc32 = true;
m_crc32 = m_creator.m_crc32_creator.finish();
}
// finish up the SHA1
if (m_creator.m_doing_sha1)
{
m_has_sha1 = true;
m_sha1 = m_creator.m_sha1_creator.finish();
}
// nuke the creator
//delete m_creator;
m_creator = null;
}