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-.TH TCGETSID 3 2010-09-10 "GNU" "Linux Programmer's Manual"
+.TH TCGETSID 3 2014-01-13 "GNU" "Linux Programmer's Manual"
.SH NAME
tcgetsid \- get session ID
.SH SYNOPSIS
.SH VERSIONS
.BR tcgetsid ()
is provided in glibc since version 2.1.
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
+The
+.BR tcgetsid ()
+function is thread-safe.
.SH CONFORMING TO
POSIX.1-2001.
.SH NOTES