The MCF/R2 in Asterisk's chan_dahdi is an example of a program that uses non-blocking I/O with DAHDI. If you unassign a span that is used for MFC/R2 with Asterisk, you start getting an endless loop of EAGAIN errors. This is because in case of a non-blocking I/O read that has nothing to return, there is no check if the span is assigned before returning -EAGAIN.
This patch adds such tests for non-blockiing I/O (both read and write). -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
