Hello ! This patch provides a new IOCTL (DMX_FIONREAD) which allows to figure out how many bytes are stored in a DVR buffer. (just like the FIONREAD ioctl for sockets). It (should) applies on CVS sources and kernel-2.6.12. I wrote this patch because of the behavior of the DVR read () call waits its buffer to be filled with at least the number of bytes requested before returning, which can be problematic. For example, my application which dynamically add/remove PES filters. If i remove every filters, and data still avaiable in the dvr buffer, the read () call will block forever. (as i try to read as much data as possible to reduce the number of system calls). Could you give me your feedback on this patch, and if it interests other people commit it on CVS ??? Thanks for the DVB API, and keep up the good job ! Perceval. -------------- next part -------------- A non-text attachment was scrubbed... Name: patch-fionread Type: text/x-patch Size: 1606 bytes Desc: not available Url : http://www.linuxtv.org/pipermail/linux-dvb/attachments/20050621/08cad4f3/patch-fionread.bin
