rather than a VSB

a limited time for data buffers to become free

               from VSL (regardless of whether it gets discarded)

No advantage

This reverts commit 12cf0228.

from the heap (rather than a VSB)

on output streams that may block

tables are stored in compiled formats

rate, and is no longer configurable. eol counter and idle_pause are
logged

exhausted

- Varnish:hitmiss and :handling are working again
- states of data objects are tracked more strictly

reader thread only copies the data needed for formatting -- the first
matching record --, and all accesses are indexed table lookups

'make check' does *not* succeed in this commit

Currently failing assertions due to dirty records (with the occupied
flag set) being returned from the record free list.

This reverts commit a2af8368.

This did not resolve the problem with dirty records (with the occupied flag
set) being returned from the free list.

This reverts commit 182d509d.

to free lists to ensure that cleared fields are seen by the reader
thread

reader thread only copies the data needed for formatting -- the first
matching record --, and all accesses are indexed table lookups

'make check' does *not* succeed in this commit

This reverts commit c4cbd278.

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