10 Commits

Author	SHA1	Message	Date
Gregory Nutt	f8bb77365a	Unix domain: Enable logic to clean up the FIFOs underlying stream sockets with those sockets are disconnected. Tehre is still no corresponding clean-up logic in place for Unix domain datagram sockets because the life of the FIFO is not as well known in that case	2015-02-01 08:52:26 -06:00
Gregory Nutt	0fc8d2fcc5	Unix domain: Add options to build in stream or datagram support separately	2015-01-31 07:58:51 -06:00
Gregory Nutt	62b706fa68	If a Unix domain socket is non-blocking, then the underlying FIFO should also be opened non-blocking	2015-01-30 12:43:37 -06:00
Gregory Nutt	e86d00913e	Unix domain/FIFOs: Fix a race condition between FIFO buffer operations and the opening and closing of FIFOs which necessary when the FIFOs are used to support Unix domain, datagram sockets. The default policy is the deallocate FIFO buffering when the last client closes the pipe. When when used for datagram communicatinos, packets left in the FIFO will be lost. Some like UDP read-ahead is needed: The buffered data in the FIFO needs to be retained until the reader gets a chance to re-open the FIFO. Added an ioctl (PIPEIOC_POLICY) to control the buffer policy. Default (0) is the legacy behavior; Unix domain datagram logic sets the alternative policy so that the packet data persists after the FIFO is closed.	2015-01-30 11:14:24 -06:00
Gregory Nutt	2a39105b3f	Unix domain: Add logic to release references to the half duplex FIFO after sendto and recvfrom	2015-01-30 09:28:55 -06:00
Gregory Nutt	0deca5b039	Unix domain: Various fixes to get apps/examplex/udgram working	2015-01-29 11:05:04 -06:00
Gregory Nutt	e5f820a2cd	Unix domain: Add sendto logic for SOCK_DRAM protocoal	2015-01-29 10:40:10 -06:00
Gregory Nutt	ffb16f658f	Unix domain: Add initial cut at redvfrom() for Unix domain datagram sockets	2015-01-29 07:47:09 -06:00
Gregory Nutt	cba78c7349	Unix domain: More fixes. With these changes, apps/examples/ustream works	2015-01-28 08:39:48 -06:00
Gregory Nutt	1828badd1d	Networking: Add FIFO management logic needed to support Unix domain sockets	2015-01-26 13:30:27 -06:00