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Re: [libmicrohttpd] Zero copy MHD_create_response_from_callback

From: Dan Inve
Subject: Re: [libmicrohttpd] Zero copy MHD_create_response_from_callback
Date: Thu, 17 Nov 2022 14:34:03 -0500

 Hi Christian,

Sounds like you should be using MHD_create_response_from_iovec(). That
way, you can avoid the memcpy() entirely.

I took a look at MHD_create_response_from_iovec, but I'm not sure if that works for my circumstance because it doesn't use a callback. The data from the driver isn't available immediately, so I check for the status inside of the MHD_ContentReaderCallback and will suspend the connection if the next 64MB block isn't ready. When the next data block is ready I resume the connection. Am I missing some way of doing that with MHD_create_response_from_iovec? :)


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