Messages in this thread | | | Date | Thu, 31 May 2007 14:17:16 -0400 | From | Uncle George <> | Subject | SELECT() returns 1 But FIONREAD says (Input/output error) |
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i am using the GARMIN_GPS/usb driver to read a gps receiver. In testing the ability of my software to recover from various errors, I try this: unplug the gps/USB cable from the usb hub.
Interestingly enough the thread spins. the SELECT() waits for something to happen, and I get one channel that something interesting happened. Then i try to find out how many chars are in the read buff via FIONREAD. That call errors out with an i/o error.
Needless to day, the code resets the SELECT parameters, and SELECT is called again. It again says that something interesting has happened on that ( i/o errored ) channel. And we now repeat the FIONREAD.
In this case what, will reset the "something interesting has happened" report from the SELECT call? Will it ever be reset in this case?
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