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Core concepts for QPACK #1357

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merged 4 commits into from
May 25, 2018
Merged

Core concepts for QPACK #1357

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db55b12
Core concepts
MikeBishop May 18, 2018
eade0aa
Re-level sections, Martin's comments
MikeBishop May 21, 2018
2bd45a0
Alan's comments
MikeBishop May 22, 2018
f82f117
Blow out table, blow up connection
MikeBishop May 24, 2018
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18 changes: 9 additions & 9 deletions draft-ietf-quic-qpack.md
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Expand Up @@ -106,8 +106,8 @@ is larger than the maximum size; an attempt to add an entry larger than the
maximum size causes the table to be emptied of all existing entries and results
in an empty table.

A new entry can reference the name of an entry in the dynamic table that will be
evicted when adding this new entry into the dynamic table. Implementations are
A new entry can reference an entry in the dynamic table that will be evicted
when adding this new entry into the dynamic table. Implementations are
cautioned to avoid deleting the referenced name if the referenced entry is
evicted from the dynamic table prior to inserting the new entry.

Expand Down Expand Up @@ -145,15 +145,15 @@ on the context of the reference.

On the control stream, a relative index of "0" always refers to the most
recently inserted value in the dynamic table. Note that this means the
entry referenced by a given relative index can change while interpreting
a HEADERS frame as new entries are inserted.
entry referenced by a given relative index will change while interpreting
instructions on the encoder stream.

~~~~~ drawing
+---+---------------+-------+
| n | ... | d + 1 | Absolute Index
+ - +---------------+ - +
| 0 | ... | n-d-1 | Relative Index
+---+---------------+-------+
+---+---------------+-----------+
| n | ... | d + 1 | Absolute Index
+ - +---------------+ - - - - - +
| 0 | ... | n - d - 1 | Relative Index
+---+---------------+-----------+
^ |
| V
Insertion Point Dropping Point
Expand Down