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-rw-r--r--doc/src/manual/cowboy_http2.asciidoc52
1 files changed, 51 insertions, 1 deletions
diff --git a/doc/src/manual/cowboy_http2.asciidoc b/doc/src/manual/cowboy_http2.asciidoc
index 4907f09..33c801c 100644
--- a/doc/src/manual/cowboy_http2.asciidoc
+++ b/doc/src/manual/cowboy_http2.asciidoc
@@ -18,21 +18,27 @@ as a Ranch protocol.
----
opts() :: #{
connection_type => worker | supervisor,
+ connection_window_margin_size => 0..16#7fffffff,
+ connection_window_update_threshold => 0..16#7fffffff,
enable_connect_protocol => boolean(),
idle_timeout => timeout(),
inactivity_timeout => timeout(),
initial_connection_window_size => 65535..16#7fffffff,
initial_stream_window_size => 0..16#7fffffff,
max_concurrent_streams => non_neg_integer() | infinity,
+ max_connection_window_size => 0..16#7fffffff,
max_decode_table_size => non_neg_integer(),
max_encode_table_size => non_neg_integer(),
max_frame_size_received => 16384..16777215,
max_frame_size_sent => 16384..16777215 | infinity,
+ max_stream_window_size => 0..16#7fffffff,
preface_timeout => timeout(),
proxy_header => boolean(),
sendfile => boolean(),
settings_timeout => timeout(),
- stream_handlers => [module()]
+ stream_handlers => [module()],
+ stream_window_margin_size => 0..16#7fffffff,
+ stream_window_update_threshold => 0..16#7fffffff
}
----
@@ -51,6 +57,19 @@ connection_type (supervisor)::
Whether the connection process also acts as a supervisor.
+connection_window_margin_size (65535)::
+
+Extra amount to be added to the window size when
+updating the connection window. This is used to
+ensure that there is always some space available in
+the window.
+
+connection_window_update_threshold (163840)::
+
+The connection window will only get updated when its size
+becomes lower than this threshold. This is to avoid sending
+too many `WINDOW_UPDATE` frames.
+
enable_connect_protocol (false)::
Whether to enable the extended CONNECT method to allow
@@ -84,6 +103,12 @@ max_concurrent_streams (infinity)::
Maximum number of concurrent streams allowed on the connection.
+max_connection_window_size (16#7fffffff)::
+
+Maximum connection window size. This is used as an upper bound
+when calculating the window size, either when reading the request
+body or receiving said body.
+
max_decode_table_size (4096)::
Maximum header table size used by the decoder. This is the value advertised
@@ -111,6 +136,12 @@ following the client's advertised maximum.
Note that actual frame sizes may be lower than the limit when
there is not enough space left in the flow control window.
+max_stream_window_size (16#7fffffff)::
+
+Maximum stream window size. This is used as an upper bound
+when calculating the window size, either when reading the request
+body or receiving said body.
+
preface_timeout (5000)::
Time in ms Cowboy is willing to wait for the connection preface.
@@ -135,8 +166,27 @@ stream_handlers ([cowboy_stream_h])::
Ordered list of stream handlers that will handle all stream events.
+stream_window_margin_size (65535)::
+
+Extra amount to be added to the window size when
+updating a stream's window. This is used to
+ensure that there is always some space available in
+the window.
+
+stream_window_update_threshold (163840)::
+
+A stream's window will only get updated when its size
+becomes lower than this threshold. This is to avoid sending
+too many `WINDOW_UPDATE` frames.
+
== Changelog
+* *2.7*: Add the options `connection_window_margin_size`,
+ `connection_window_update_threshold`,
+ `max_connection_window_size`, `max_stream_window_size`,
+ `stream_window_margin_size` and
+ `stream_window_update_threshold` to configure
+ behavior on sending WINDOW_UPDATE frames.
* *2.6*: The `proxy_header` and `sendfile` options were added.
* *2.4*: Add the options `initial_connection_window_size`,
`initial_stream_window_size`, `max_concurrent_streams`,