Gregory Nutt
3a4984a40b
Rename file_close_detached() to juse file_close() for better consistency in naming.
2018-09-15 13:04:56 -06:00
Gregory Nutt
21041af8a7
This commit modifies the Unix domain local socket design. Local sockets are built on top of pipes. The Local socket implementation maintained file descriptors to interrupt with the pipes. File descriptors have the bad property that they are valid only while running on the thread within the task that created the local socket.
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As a policy, all internal OS implementations must use "detached" files which are valid in any context and do not depend on the validity of a file descriptor at any point in time. This commit converts the usage of file descriptors to detached files throughout the local socket implementation.
Squashed commit of the following:
net/local: Finish change to eliminate use of file descriptors.
net/local: A little more of the conversion.
net/local: Beginning of chnages to eliminate use of file descriptors in the local socket implementeation. poll() will be a problem.
2017-11-02 08:23:38 -06:00
Gregory Nutt
a71c504142
Socket I/F: Add recvfrom() method to interface.
2017-07-12 17:36:05 -06:00
Gregory Nutt
d5207efb5a
Be consistent... Use Name: consistent in function headers vs Function:
2017-04-21 16:33:14 -06:00
Gregory Nutt
a1469a3e95
Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err()
2016-06-11 15:50:49 -06:00
Gregory Nutt
6209c51206
net/: More clean-up of spacing/alignment issues
2015-10-08 15:10:04 -06:00
Gregory Nutt
af086c40ff
Remove dangling whitespace
2015-10-04 15:28:54 -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
f421723fbd
Fix some errors in debug assertions
2015-01-30 13:29:56 -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
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
b76db036da
Unix domain: A few more bugfixes
2015-01-27 17:31:42 -06:00
Gregory Nutt
8f29039f42
Unix sockets: Fleshes out the recvfrom() logic
2015-01-27 11:51:24 -06:00
Gregory Nutt
2201c9b449
Add stub files for sending and receiving on FIFOs
2015-01-26 17:28:36 -06:00
