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fix leaking request cancelation go routine in case an error occurred

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This commit is contained in:
Marten Seemann 2019-09-25 07:21:28 +07:00
parent 9e6bff0b98
commit cc90dfadaf
1 changed files with 22 additions and 15 deletions
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37
http3/client.go
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@ -152,21 +152,6 @@ func (c *client) RoundTrip(req *http.Request) (*http.Response, error) {
return nil, err
}
rsp, rerr := c.doRequest(req, str)
if rerr.streamErr != 0 {
str.CancelWrite(quic.ErrorCode(rerr.streamErr))
}
if rerr.connErr != 0 {
var reason string
if rerr.err != nil {
reason = rerr.err.Error()
}
c.session.CloseWithError(quic.ErrorCode(rerr.connErr), reason)
}
return rsp, rerr.err
}
func (c *client) doRequest(req *http.Request, str quic.Stream) (*http.Response, requestError) {
// Request Cancellation:
// This go routine keeps running even after RoundTrip() returns.
// It is shut down when the application is done processing the body.
@ -180,6 +165,28 @@ func (c *client) doRequest(req *http.Request, str quic.Stream) (*http.Response,
}
}()
rsp, rerr := c.doRequest(req, str, reqDone)
if rerr.err != nil { // if any error occurred
close(reqDone)
if rerr.streamErr != 0 { // if it was a stream error
str.CancelWrite(quic.ErrorCode(rerr.streamErr))
}
if rerr.connErr != 0 { // if it was a connection error
var reason string
if rerr.err != nil {
reason = rerr.err.Error()
}
c.session.CloseWithError(quic.ErrorCode(rerr.connErr), reason)
}
}
return rsp, rerr.err
}
func (c *client) doRequest(
req *http.Request,
str quic.Stream,
reqDone chan struct{},
) (*http.Response, requestError) {
var requestGzip bool
if !c.opts.DisableCompression && req.Method != "HEAD" && req.Header.Get("Accept-Encoding") == "" && req.Header.Get("Range") == "" {
requestGzip = true