4 ms·
In the SuS description of poll(), it says that POLLOUT means "Normal data may be written without blocking." However it does not say how much data. It is unexp
by haberman 17y ago
In the SuS description of poll(), it says that POLLOUT means "Normal data may be written without blocking." However it does not say how much data. It is unexpected that a write() call would block instead of returning a short count; for example, if you feed it a 2G buffer, it could return 4096 indicating that only 4k of the 2G was actually written.
- ajross 17y agoIt could, but it doesn't and never has. The standard was written to admit a broader set of behavior than real systems actually implement. And in this case, there's absolutely nothing "surprising" to my eyes about a blocking (!) socket blocking on overflow. Again: there is already a mechanism in place to support non-blocking behavior, and it's not this one.