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by jbooth
5157 days ago
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If the socket you're writing to has been set to nonblocking, then sendfile exhibits the behavior I described, sending EAGAIN sometimes (check man sendfile). This means typically you want to put a selector in front of it and poll the selector, then send to any sockets that are writable, loop back and poll again. It's still an advantage over read/write because you're getting the 0-copy behavior. |
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