Commit Graph

17 Commits

Author SHA1 Message Date
Yang ChungFan 4db8c826d7 drivers/pipes: Use inode reference counter instead of device reference counter to handle dup(). I found that if I dup() a pipe, the reference counter d_refs is not increased. If I close any of the fd, backed by the same pipe, the pipe will be freed. This causes any further usage on the fd referencing a non existent pipe. This change uses the inode reference counter, which is properly maintained during dup(). 2019-08-06 07:31:57 -06:00
Gregory Nutt b49be4bb20 Squashed commit of the following:
arch/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    sched/ audio/ crypto/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    Documentation/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    fs/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    graphics/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    net/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    drivers/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    include/, syscall/, wireless/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    configs/:  Remove all references to CONFIG_DISABLE_POLL.  Standard POSIX poll can no longer be disabled.
2019-05-21 18:57:54 -06:00
Gregory Nutt 9a44f3017b Fix a few typos in the last commit 2016-07-19 13:40:54 -06:00
Gregory Nutt d6bf67f9ff Alloc different sizes for pipe and fifo buffers 2016-07-19 13:34:18 -06:00
Gregory Nutt c49bd4179a Purely cosmetic 2016-03-20 18:44:44 -06:00
Andrew Tridgell 38eb8bb1b0 pipes: support FIONREAD and FIONWRITE ioctl on pipes; use semaphores for pipecommon_ioctl(). 2016-03-20 18:11:13 -06:00
Gregory Nutt 3c1af2feed Local sockets: Add poll support for Unix stream sockets. From Jussi Kivilinna. 2015-05-12 07:41:12 -06:00
Gregory Nutt 63ab39b274 VFS: The inode unlink method should not be support if operations on the root pseudo-filesystem are disabled. 2015-02-18 09:34:58 -06:00
Gregory Nutt 410fcaa0a1 Added a forward reference to struct inode to avoid warning about mismatching types in assignemnt 2015-02-10 13:41:49 -06:00
Gregory Nutt eceac1612d Fix some compilation errors introduced in the last commit 2015-01-31 13:24:59 -06:00
Gregory Nutt 39a5238c43 Pipes/FIFOs: Implement the unlink method. If the pipe/FIFO is unlinked, it will marked the pipe/FIFO as unliked. If/when all open references to the driver are closed, all of the driver resources will be freed. 2015-01-31 12:05:01 -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 3a1324741a More trailing whilespace removal 2014-04-13 14:32:20 -06:00
patacongo 5b7341f5db drivers/, drivers/pipes, and drivers/serial file clean-up
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4944 42af7a65-404d-4744-a932-0658087f49c3
2012-07-15 14:56:25 +00:00
patacongo 9634f25391 Changing NuttX fixed size type names to C99 standard names -- things will be broken for awhile
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2343 42af7a65-404d-4744-a932-0658087f49c3
2009-12-15 14:25:14 +00:00
patacongo 92b110e0e2 Changing NuttX fixed size type names to C99 standard names -- things will be broken for awhile
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2335 42af7a65-404d-4744-a932-0658087f49c3
2009-12-14 15:46:55 +00:00
patacongo 9b04ee217e Move some drivers to separate subdirectories
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2156 42af7a65-404d-4744-a932-0658087f49c3
2009-10-18 13:52:21 +00:00