commit 1b27761f1cd4840a914b5255e4357385091562e5
author Blake Mizerany <blake.mizerany@gmail.com> Tue Oct 27 22:40:40 2015 -0700
committer Brad Fitzpatrick <bradfitz@golang.org> Wed Oct 28 23:57:56 2015 +0000
tree b1bd3d4a5cb1d72dc8118462f718b932c10e9b5b
parent ce84af2e5bf21582345e478b116afc7d4efaba3d

http2: swallow io.EOF while reading body and flow fix

This commit fixes two bugs.

The first bug returned io.EOF when a zero bytes were read from the
request body.

The second bug was a hang where the Transport waited for more flow
tokens than initialWindowSize BEFORE sending the first data frame which
never gave the server a chance to send flow tokens, so the client never
got enough to unblock awaitFlowControl. This commit changes
awaitFlowControl to wait for for [1,max] tokens, where max is the length
of the scratch buffer.

Change-Id: Ibbac0a38cd672535917a38330998d3b48d46f5f1
Reviewed-on: https://go-review.googlesource.com/16411
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>