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net.server_epoll: Fix streaming downloads (thanks Menel)

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ff4e34c448a4 broke the way net.http.server streams downloads from disk
because it made writes from the ondrain callback no longer reset the
want-write flag, causing the download to halt.

Writes from the predrain handler still must not trigger anything but
additions to the buffer, since it is about to do all the socket writing
already.
This commit is contained in:
Kim Alvefur 2021-11-19 15:45:01 +01:00
parent 2921cef48f
commit 8ac98af8b8
1 changed files with 1 additions and 1 deletions
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2
net/server_epoll.lua
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@ -513,9 +513,9 @@ function interface:onwritable()
else
self.writebuffer = nil;
end
self._writing = nil;
self:setwritetimeout(false);
self:ondrain(); -- Be aware of writes in ondrain
self._writing = nil;
return ok;
elseif partial then
self:debug("Sent %d out of %d buffered bytes", partial, #data);