check by assert that they don't go negative

that are needed for the format, rather than the last. This is necessary
because Varnish 4.0.x logs are still mixing the URLs and headers of
ESI-included requests into the same log transaction, so that we were
getting the URL/headers of the last ESI include, rather than those
of the root request.

there is more than one in a record spanning more than one chunk

per VCL_Log formatter, since they are filtered to match the "header"

half of the global total for the data type

a ready output timeout

"logline")

NOTICE: lifecycle events
INFO: monitoring logs and informational messages at startup
CRIT: fatal errors at startup
ERR: recoverable errors after startup
ALERT: fatal errors after startup

to due to absence of getline()

exhausted

to be matched against a regex

thread

mb before reading them to format for log output

to ensure that all initializations from the main thread are stored

(and not "by accident" for stack-local data)

zero, and set the occupied field