xref: /illumos-gate/usr/src/man/man3proc/Psync.3proc (revision bbf215553c7233fbab8a0afdf1fac74c44781867)
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.\"
1443051d27SRobert Mustacchi.Dd May 11, 2016
1543051d27SRobert Mustacchi.Dt PSYNC 3PROC
1643051d27SRobert Mustacchi.Os
1743051d27SRobert Mustacchi.Sh NAME
1843051d27SRobert Mustacchi.Nm Psync ,
1943051d27SRobert Mustacchi.Nm Lsync
2043051d27SRobert Mustacchi.Nd synchronize cached tracing flags and modifications
21ab618543SJohn Levon.Sh LIBRARY
2243051d27SRobert Mustacchi.Lb libproc
23ab618543SJohn Levon.Sh SYNOPSIS
2443051d27SRobert Mustacchi.In libproc.h
2543051d27SRobert Mustacchi.Ft void
2643051d27SRobert Mustacchi.Fo Psync
2743051d27SRobert Mustacchi.Fa "struct ps_prochandle *P"
2843051d27SRobert Mustacchi.Fc
2943051d27SRobert Mustacchi.Ft void
3043051d27SRobert Mustacchi.Fo Lsync
3143051d27SRobert Mustacchi.Fa "struct ps_lwphandle *L"
3243051d27SRobert Mustacchi.Fc
3343051d27SRobert Mustacchi.Sh DESCRIPTION
3443051d27SRobert MustacchiThe
3543051d27SRobert Mustacchi.Fn Psync
3643051d27SRobert Mustacchifunction synchronizes modifications to the process handle
3743051d27SRobert Mustacchi.Fa P
3872d3dbb9SYuri Pankovback to the underlying active process.
3972d3dbb9SYuri PankovThe
4043051d27SRobert Mustacchi.Fn Psync
4143051d27SRobert Mustacchifunction ensures that any outstanding process holds, register
4243051d27SRobert Mustacchimodifications, signal injections, and modifications to the various fault
4343051d27SRobert Mustacchiand system call tracing flags are taken care of.
4443051d27SRobert Mustacchi.Pp
4543051d27SRobert MustacchiNormally this function is not required as other library routines take
4643051d27SRobert Mustacchicare of synchronizing this state out to the process when it is required.
4743051d27SRobert MustacchiIf the underlying /proc file system routines are used outside of the
4843051d27SRobert Mustacchilibrary, calling this function may be required.
4943051d27SRobert Mustacchi.Pp
5043051d27SRobert MustacchiThe
5143051d27SRobert Mustacchi.Fn Psync
5272d3dbb9SYuri Pankovfunction is only meaningful for active processes.
5372d3dbb9SYuri PankovIt will do nothing on process handles that refer to core files, zombie
5472d3dbb9SYuri Pankovprocesses, and ELF objects.
5543051d27SRobert Mustacchi.Pp
5643051d27SRobert MustacchiThe
5743051d27SRobert Mustacchi.Fn Lsync
5843051d27SRobert Mustacchifunction is equivalent to the
5943051d27SRobert Mustacchi.Fn Psync
6043051d27SRobert Mustacchifunction, except rather than operating on the entire process and its
6143051d27SRobert Mustacchirepresentative thread, it instead operates on the thread handle
6243051d27SRobert Mustacchi.Fa L .
6343051d27SRobert Mustacchi.Sh INTERFACE STABILITY
6443051d27SRobert Mustacchi.Sy Uncommitted
6543051d27SRobert Mustacchi.Sh MT-LEVEL
6643051d27SRobert MustacchiSee
6743051d27SRobert Mustacchi.Sy LOCKING
6843051d27SRobert Mustacchiin
6943051d27SRobert Mustacchi.Xr libproc 3LIB .
7043051d27SRobert Mustacchi.Sh SEE ALSO
7143051d27SRobert Mustacchi.Xr libproc 3LIB ,
7243051d27SRobert Mustacchi.Xr Pfault 3PROC ,
7343051d27SRobert Mustacchi.Xr Pputareg 3PROC ,
7443051d27SRobert Mustacchi.Xr Psetfault 3PROC ,
7543051d27SRobert Mustacchi.Xr Psetsignal 3PROC ,
7643051d27SRobert Mustacchi.Xr Psetsysentry 3PROC ,
7743051d27SRobert Mustacchi.Xr Psetsysexit 3PROC ,
7843051d27SRobert Mustacchi.Xr Psignal 3PROC ,
7943051d27SRobert Mustacchi.Xr Psysentry 3PROC ,
8043051d27SRobert Mustacchi.Xr Psysexit 3PROC ,
81*bbf21555SRichard Lowe.Xr proc 5
82