Boris Zbarsky wrote:
Darrell Young wrote:
I have seen examples that create multipart posts, but takes
performance hits as the files get larger, because the files are loaded
into memory and base64 encoded and added to the mulitpart post before
being put into nsIUploadChannel.
See the code in nsFormSubmission.cpp, in particular the implementation
of nsFSMultipartFormData::AddNameFilePair [1] and
nsFSMultipartFormData::Init [2]. This code is using
nsIMultiplexInputStream [3], which lets you multiplex several streams
(eg your string stream for most of the form data, the file's input
stream, and some more string stuff).
-Boris
[1]
http://lxr.mozilla.org/seamonkey/source/content/html/content/src/nsFormSubmission.cpp#767
[2]
http://lxr.mozilla.org/seamonkey/source/content/html/content/src/nsFormSubmission.cpp#820
[3]
http://lxr.mozilla.org/seamonkey/source/xpcom/io/nsIMultiplexInputStream.idl
Thanks! Just what I was looking for!
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