nuttx

History

Gregory Nutt ea13e24392 Correct a problem that was causing an apparent directory to be reported as a file instead of a directory by opendir. This happened after adding these three new procfs entries: fs/block fs/mount fs/usage Of course, there is no directory fs in this case, only three files that have fs/ in their relative pathnames. The logic was detecting that fs was the name of the enty to report, but it was then declaring that fs was a file (because fs/block is of type file). This was fixed by adding a check for matching lenghts. i.e., if strlen(fs) != strlen(fs/block), then report fs as a directory instead of a file.		2017-10-26 16:30:59 -06:00
..
fs_procfs.c	Correct a problem that was causing an apparent directory to be reported as a file instead of a directory by opendir.	2017-10-26 16:30:59 -06:00
fs_procfscpuload.c	procfs: Most stat() implementations were not initializating the st_atime, st_ctime, and st_mtime fields.	2017-02-15 09:59:09 -06:00
fs_procfskmm.c	procfs: Most stat() implementations were not initializating the st_atime, st_ctime, and st_mtime fields.	2017-02-15 09:59:09 -06:00
fs_procfsproc.c	Add file missed in last commit. Fix naming in some configuration items.	2017-08-12 07:26:20 -06:00
fs_procfsuptime.c	procfs: Fix incorrect uptime with CONFIG_SYSTEM_TIME64	2017-04-25 10:58:38 +09:00
fs_procfsutil.c	Remove some block comments before empty code sections	2016-04-11 18:16:04 -06:00
fs_skeleton.c	procfs skeleton: Some additional, purely cosmetic updates.	2017-02-15 12:47:51 -06:00
Kconfig	Squashed commit of the following:	2017-10-26 13:33:08 -06:00
Make.defs	Add procfs/kmm to show the state of the kernel heap	2016-02-06 11:35:30 -06:00
README.txt

README.txt

fs/procfs README
================

  This is a tiny procfs file system that allows read-only access to a few
  attributes of a task or thread.  This tiny procfs fs file system can be
  built into the system by enabling:

    CONFIG_FS_PROCFS=y

  It can then be mounted from the NSH command like like:

    nsh> mount -t procfs /proc

Example
=======

  NuttShell (NSH) NuttX-6.31
  nsh> mount -t procfs /proc

  nsh> ls /proc
  /proc:
   0/
   1/

  nsh> ls /proc/1
  /proc/1:
   status
   cmdline

  nsh> cat /proc/1/status
  Name:       init
  Type:       Task
  State:      Running
  Priority:   100
  Scheduler:  SCHED_FIFO
  SigMask:    00000000

  nsh> cat /proc/1/cmdline
  init

  nsh> sleep 100 &
  sleep [2:100]
  nsh> ls /proc
  ls /proc
  /proc:
   0/
   1/
   2/

  nsh> cat /proc/2/cmdline
  <pthread> 0x527420