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Switch cowboy_http2 to the new cow_http2_machine

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The new module is a merge of the Cowboy and Gun HTTP/2
state machines. Using a common code will help future
developments rather than duplicating the work.

A notable change is in how streams are terminated
when the handler stops before the body is sent. The
cowboy_stream:terminate function is now called only
after the body has been sent fully (or the stream
is reset in-between), not when the stop command is
returned. This will most likely have an impact on
metrics but will be closer to reality.

I had to comment a broken test in rfc7231_SUITE that
was cheating, cheating is no longer possible.

This depends on Cowlib master for the time being. A
new Cowlib version will be released once both Cowboy
and Gun are ported to use cow_http2_machine and I'm
satisfied with it.
This commit is contained in:
Loïc Hoguin 2018-10-26 10:18:57 +02:00
parent 3310849115
commit e1d970b5eb
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4 changed files with 507 additions and 1068 deletions
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2
Makefile
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@ -15,7 +15,7 @@ CT_OPTS += -ct_hooks cowboy_ct_hook [] # -boot start_sasl
LOCAL_DEPS = crypto
DEPS = cowlib ranch
dep_cowlib = git https://github.com/ninenines/cowlib 2.6.0
dep_cowlib = git https://github.com/ninenines/cowlib master
dep_ranch = git https://github.com/ninenines/ranch 1.6.2
DOC_DEPS = asciideck

1550
src/cowboy_http2.erl
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File diff suppressed because it is too large Load diff

3
src/cowboy_metrics_h.erl
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@ -71,8 +71,7 @@
%% Start/end of the processing of the request.
%%
%% This represents the time from this stream handler's init
%% to terminate. Note that this doesn't indicate the response
%% has been sent fully, it still may be queued up in a buffer.
%% to terminate.
req_start => integer(),
req_end => integer(),

18
test/rfc7231_SUITE.erl
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@ -150,14 +150,16 @@ method_delete(Config) ->
{ok, <<"DELETE">>} = gun:await_body(ConnPid, Ref),
ok.
method_connect(Config) ->
doc("The CONNECT method is currently not implemented. (RFC7231 4.3.6)"),
ConnPid = gun_open(Config),
Ref = gun:request(ConnPid, <<"CONNECT">>, "localhost:8080", [
{<<"accept-encoding">>, <<"gzip">>}
]),
{response, fin, 501, _} = gun:await(ConnPid, Ref),
ok.
%% @todo This test is currently broken because Gun does not
%% send a proper CONNECT request.
%method_connect(Config) ->
% doc("The CONNECT method is currently not implemented. (RFC7231 4.3.6)"),
% ConnPid = gun_open(Config),
% Ref = gun:request(ConnPid, <<"CONNECT">>, "localhost:8080", [
% {<<"accept-encoding">>, <<"gzip">>}
% ]),
% {response, fin, 501, _} = gun:await(ConnPid, Ref),
% ok.
% A client sending a CONNECT request MUST send the authority form of
% request-target (Section 5.3 of [RFC7230]); i.e., the request-target