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net/http: update bundled x/net/http2

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Updates bundled http2 to x/net git rev 63522dbf7

    http2: reduce allocations of (*clientConnReadLoop).handleReponse
    https://golang.org/cl/223783 (#37853)

    http2: remove unused errors
    https://golang.org/cl/220458

    http2: remove unused stream struct fields
    https://golang.org/cl/219857

    http2: fix typo in comment
    https://golang.org/cl/214602

    http2: workaround TCPConn CloseWrite not being supported on Plan 9
    https://golang.org/cl/209417 (#17906, #35904)

Change-Id: I0e48f32247938c3858170bf419624367d4faef4b
Reviewed-on: https://go-review.googlesource.com/c/go/+/224217
Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Emmanuel T Odeke 2020-03-19 16:51:13 -07:00 committed by Emmanuel Odeke
parent a0917eb959
commit a3a9901c1e
1 changed files with 21 additions and 19 deletions
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40
src/net/http/h2_bundle.go
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@ -3245,11 +3245,6 @@ func (s http2SettingID) String() string {
return fmt.Sprintf("UNKNOWN_SETTING_%d", uint16(s))
}
var (
http2errInvalidHeaderFieldName = errors.New("http2: invalid header field name")
http2errInvalidHeaderFieldValue = errors.New("http2: invalid header field value")
)
// validWireHeaderFieldName reports whether v is a valid header field
// name (key). See httpguts.ValidHeaderName for the base rules.
//
@ -4147,13 +4142,10 @@ type http2stream struct {
cancelCtx func()
// owned by serverConn's serve loop:
bodyBytes int64 // body bytes seen so far
declBodyBytes int64 // or -1 if undeclared
flow http2flow // limits writing from Handler to client
inflow http2flow // what the client is allowed to POST/etc to us
parent *http2stream // or nil
numTrailerValues int64
weight uint8
bodyBytes int64 // body bytes seen so far
declBodyBytes int64 // or -1 if undeclared
flow http2flow // limits writing from Handler to client
inflow http2flow // what the client is allowed to POST/etc to us
state http2streamState
resetQueued bool // RST_STREAM queued for write; set by sc.resetStream
gotTrailerHeader bool // HEADER frame for trailers was seen
@ -6592,7 +6584,7 @@ type http2Transport struct {
// send in the initial settings frame. It is how many bytes
// of response headers are allowed. Unlike the http2 spec, zero here
// means to use a default limit (currently 10MB). If you actually
// want to advertise an ulimited value to the peer, Transport
// want to advertise an unlimited value to the peer, Transport
// interprets the highest possible value here (0xffffffff or 1<<32-1)
// to mean no limit.
MaxHeaderListSize uint32
@ -8392,7 +8384,9 @@ func (rl *http2clientConnReadLoop) handleResponse(cs *http2clientStream, f *http
return nil, errors.New("malformed response from server: malformed non-numeric status pseudo header")
}
header := make(Header)
regularFields := f.RegularFields()
strs := make([]string, len(regularFields))
header := make(Header, len(regularFields))
res := &Response{
Proto: "HTTP/2.0",
ProtoMajor: 2,
@ -8400,7 +8394,7 @@ func (rl *http2clientConnReadLoop) handleResponse(cs *http2clientStream, f *http
StatusCode: statusCode,
Status: status + " " + StatusText(statusCode),
}
for _, hf := range f.RegularFields() {
for _, hf := range regularFields {
key := CanonicalHeaderKey(hf.Name)
if key == "Trailer" {
t := res.Trailer
@ -8412,7 +8406,18 @@ func (rl *http2clientConnReadLoop) handleResponse(cs *http2clientStream, f *http
t[CanonicalHeaderKey(v)] = nil
})
} else {
header[key] = append(header[key], hf.Value)
vv := header[key]
if vv == nil && len(strs) > 0 {
// More than likely this will be a single-element key.
// Most headers aren't multi-valued.
// Set the capacity on strs[0] to 1, so any future append
// won't extend the slice into the other strings.
vv, strs = strs[:1:1], strs[1:]
vv[0] = hf.Value
header[key] = vv
} else {
header[key] = append(vv, hf.Value)
}
}
}
@ -8698,8 +8703,6 @@ func (rl *http2clientConnReadLoop) processData(f *http2DataFrame) error {
return nil
}
var http2errInvalidTrailers = errors.New("http2: invalid trailers")
func (rl *http2clientConnReadLoop) endStream(cs *http2clientStream) {
// TODO: check that any declared content-length matches, like
// server.go's (*stream).endStream method.
@ -8930,7 +8933,6 @@ func (cc *http2ClientConn) writeStreamReset(streamID uint32, code http2ErrCode,
var (
http2errResponseHeaderListSize = errors.New("http2: response header list larger than advertised limit")
http2errRequestHeaderListSize = errors.New("http2: request header list larger than peer's advertised limit")
http2errPseudoTrailers = errors.New("http2: invalid pseudo header in trailers")
)
func (cc *http2ClientConn) logf(format string, args ...interface{}) {