int8 is a signed 8 bit integer.
int16 is a signed 16 bit integer.
int32 is a signed 32 bit integer.
int64 is a signed 64 bit integer.
uint8 is an unsigned 8 bit integer.
uint16 is an unsigned 16 bit integer.
uint32 is an unsigned 32 bit integer.
uint64 is an unsigned 64 bit integer.
bigtime_t is a type from BeOS that's used to represent microsecond-resolution times on all platforms.