143051d27SRobert Mustacchi.\" 243051d27SRobert Mustacchi.\" This file and its contents are supplied under the terms of the 343051d27SRobert Mustacchi.\" Common Development and Distribution License ("CDDL"), version 1.0. 443051d27SRobert Mustacchi.\" You may only use this file in accordance with the terms of version 543051d27SRobert Mustacchi.\" 1.0 of the CDDL. 643051d27SRobert Mustacchi.\" 743051d27SRobert Mustacchi.\" A full copy of the text of the CDDL should have accompanied this 843051d27SRobert Mustacchi.\" source. A copy of the CDDL is also available via the Internet at 943051d27SRobert Mustacchi.\" http://www.illumos.org/license/CDDL. 1043051d27SRobert Mustacchi.\" 1143051d27SRobert Mustacchi.\" 1243051d27SRobert Mustacchi.\" Copyright 2015 Joyent, Inc. 1343051d27SRobert Mustacchi.\" 14*a7d7cafeSRobert Mustacchi.Dd November 27, 2023 1543051d27SRobert Mustacchi.Dt LCTLFD 3PROC 1643051d27SRobert Mustacchi.Os 1743051d27SRobert Mustacchi.Sh NAME 1843051d27SRobert Mustacchi.Nm Lctlfd 1943051d27SRobert Mustacchi.Nd obtain the thread control file descriptor 20*a7d7cafeSRobert Mustacchi.Sh LIBRARY 2143051d27SRobert Mustacchi.Lb libproc 22*a7d7cafeSRobert Mustacchi.Sh SYNOPSIS 2343051d27SRobert Mustacchi.In libproc.h 2443051d27SRobert Mustacchi.Ft int 2543051d27SRobert Mustacchi.Fo Lctlfd 2643051d27SRobert Mustacchi.Fa "struct ps_lwphandle *L" 2743051d27SRobert Mustacchi.Fc 2843051d27SRobert Mustacchi.Sh DESCRIPTION 2943051d27SRobert MustacchiThe 3043051d27SRobert Mustacchi.Fn Lctlfd 3143051d27SRobert Mustacchifunction returns a file descriptor to the underlying /proc file system 3243051d27SRobert Mustacchi.Sy ctl 3343051d27SRobert Mustacchifile for the thread identified by the handle 3443051d27SRobert Mustacchi.Fa L . 3543051d27SRobert MustacchiThis may be used for injecting control operations manually; however, 3643051d27SRobert Mustacchimany interfaces for using it are provided by 3743051d27SRobert Mustacchi.Xr libproc 3LIB 3843051d27SRobert Mustacchiitself. 3943051d27SRobert Mustacchi.Pp 4043051d27SRobert MustacchiThe file descriptor is invalidated when the thread handle is released 4143051d27SRobert Mustacchithrough 4243051d27SRobert Mustacchi.Xr Lfree 3PROC . 4343051d27SRobert MustacchiThe caller 4443051d27SRobert Mustacchi.Em must not 4543051d27SRobert Mustacchicall 4643051d27SRobert Mustacchi.Xr close 2 4743051d27SRobert Mustacchion the returned file descriptor. 4843051d27SRobert Mustacchi.Sh INTERFACE STABILITY 4943051d27SRobert Mustacchi.Sy Uncommitted 5043051d27SRobert Mustacchi.Sh MT-LEVEL 5143051d27SRobert MustacchiSee 5243051d27SRobert Mustacchi.Sy LOCKING 5343051d27SRobert Mustacchiin 5443051d27SRobert Mustacchi.Xr libproc 3LIB . 5543051d27SRobert Mustacchi.Sh SEE ALSO 5643051d27SRobert Mustacchi.Xr libproc 3LIB , 5743051d27SRobert Mustacchi.Xr Lfree 3PROC , 5843051d27SRobert Mustacchi.Xr Lgrab 3PROC , 59bbf21555SRichard Lowe.Xr proc 5 60