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February 2010
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2010.03.02 16:14 "Re: Patch for tif_unix.c", by Bob Friesenhahn
On Tue, 2 Mar 2010, Toby Thain wrote: > On 2-Mar-10, at 9:53 AM, Scott Ribe wrote: > >>> Unless I'm missing something. >> >> Yes, generally the correct response to EINTR is to retry, because >> it is simply the result of the kernel dealing with a signal, and >> not any kind of actual I/O failure. > > Right, but what was the intention of the signal? That is the crux of the matter. An application which handles signals would need to have a way to abort all I/O loops if it wants to quit (e.g. if the user hit ^C). Otherwise the program hangs and the user becomes annoyed. Libtiff does not include such smarts. Everything becomes more challenging if the application is threaded. Bob -- Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/