svn commit: r240523 - head/share/man/man3

[Jilles Tjoelker]

Author: jilles
Date: Fri Sep 14 22:10:01 2012
New Revision: 240523
URL: http://svn.freebsd.org/changeset/base/240523

Log:
  siginfo(3): Document SI_LWP signal code.
  
  Describe SI_LWP as being generated by pthread_kill() because thr_kill() is
  a private undocumented function.
  
  MFC after:	1 week

Modified:
  head/share/man/man3/siginfo.3

Modified: head/share/man/man3/siginfo.3
==============================================================================
--- head/share/man/man3/siginfo.3	Fri Sep 14 22:05:09 2012	(r240522)
+++ head/share/man/man3/siginfo.3	Fri Sep 14 22:10:01 2012	(r240523)
@@ -197,6 +197,9 @@ signal generated by completion of an asy
 signal generated by arrival of a message on an empty message queue
 .It Ta Dv SI_KERNEL Ta
 signal generated by miscellaneous parts of the kernel
+.It Ta Dv SI_LWP Ta
+signal sent by
+.Xr pthread_kill 3
 .El
 .Pp
 In addition, the following signal-specific information is available:
@@ -273,6 +276,10 @@ the value passed to
 system call
 .It Ta Va si_mqd Ta
 the ID of the message queue which generated the signal
+.It Dv SI_LWP Ta Va si_pid Ta
+the process ID that sent the signal
+.It Ta Va si_uid Ta
+real user ID of the process that sent the signal
 .El
 .Sh NOTES
 Currently, the kernel never generates the
@@ -284,9 +291,10 @@ signal is queued when a process changed 
 Realtime Extensions like aio, timer, and message queue also queue
 signals.
 Signals with code
-.Dv SI_USER
-or
+.Dv SI_USER ,
 .Dv SI_KERNEL
+or
+.Dv SI_LWP
 are only queued if there are sufficient resources;
 otherwise,
 .Dv SI_NOINFO
@@ -321,6 +329,10 @@ and
 .Dv SI_KERNEL
 can be generated as of
 .Fx 8.1 .
+The code
+.Dv SI_LWP
+can be generated as of
+.Fx 9.0 .
 .Sh AUTHORS
 This manual page was written by
 .An "David Xu" Aq davidxu at FreeBSD.org .