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-.TH RT_SIGQUEUEINFO 2 2011-09-18 "Linux" "Linux Programmer's Manual"
+.TH RT_SIGQUEUEINFO 2 2012-07-13 "Linux" "Linux Programmer's Manual"
.SH NAME
rt_sigqueueinfo, rt_tgsigqueueinfo \- queue a signal and data
.SH SYNOPSIS
.BI "int rt_tgsigqueueinfo(pid_t " tgid ", pid_t " tid ", int " sig ,
.BI " siginfo_t *" uinfo );
.fi
+
+.IR Note :
+There are no glibc wrappers for these system calls; see NOTES.
.SH DESCRIPTION
The
.BR rt_sigqueueinfo ()
.I si_code
This must be one of the
.B SI_*
-codes in the kernel source file
+codes in the Linux kernel source file
.IR include/asm-generic/siginfo.h ,
with the restriction that the code must be negative
(i.e., cannot be
and
.IR tid ,
a thread in that thread group.
-.SH "RETURN VALUE"
+.SH RETURN VALUE
On success, these system calls return 0.
On error, they return \-1 and
.I errno
The
.BR rt_tgsigqueueinfo ()
system call was added to Linux in version 2.6.31.
-.SH "CONFORMING TO"
+.SH CONFORMING TO
These system calls are Linux-specific.
.SH NOTES
Since these system calls are not intended for application use,
.BR kill (2),
the null signal (0) can be used to check if the specified process
or thread exists.
-.SH "SEE ALSO"
+.SH SEE ALSO
.BR kill (2),
.BR sigaction (2),
.BR sigprocmask (2),