BUFFER
BUFFER is a convenience library for working with strings in C.
Mainly, BUFFERs eliminate the need for tracking the string length, thus providing
a safe alternative for string operations.
Also, they are super fast in printing and appending data to the string and its buffer_strlen()
is just a lookup (it does not traverse the string).
Netdata uses BUFFERs for preparing web responses and buffering data to be sent upstream or
to backend databases.