chrony/sys.c
John Hasler 35e662d810 Add mlockall and SCHED_FIFO support
The attached patch adds support for mlockall() as well as the SCHED_FIFO
real-time scheduler. It should result in reduced (and more consistent)
latency. Usage is documented in all the documents.
2009-02-10 18:02:28 +01:00

129 lines
2.6 KiB
C

/*
$Header: /cvs/src/chrony/sys.c,v 1.11 2002/02/28 23:27:14 richard Exp $
=======================================================================
chronyd/chronyc - Programs for keeping computer clocks accurate.
**********************************************************************
* Copyright (C) Richard P. Curnow 1997-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
**********************************************************************
=======================================================================
This file contains all the conditionally compiled bits that pull
in the various operating-system specific modules
*/
#include "sys.h"
#if defined (LINUX)
#include "sys_linux.h"
#endif
#if defined (SOLARIS)
#include "sys_solaris.h"
#endif
#if defined (SUNOS)
#include "sys_sunos.h"
#endif
#if defined (__NetBSD__)
#include "sys_netbsd.h"
#endif
/* ================================================== */
void
SYS_Initialise(void)
{
#if defined(LINUX)
SYS_Linux_Initialise();
#endif
#if defined(SOLARIS)
SYS_Solaris_Initialise();
#endif
#if defined(SUNOS)
SYS_SunOS_Initialise();
#endif
#if defined(__NetBSD__)
SYS_NetBSD_Initialise();
#endif
}
/* ================================================== */
void
SYS_Finalise(void)
{
#if defined(LINUX)
SYS_Linux_Finalise();
#endif
#if defined(SOLARIS)
SYS_Solaris_Finalise();
#endif
#if defined(SUNOS)
SYS_SunOS_Finalise();
#endif
#if defined(__NetBSD__)
SYS_NetBSD_Finalise();
#endif
return;
}
/* ================================================== */
void SYS_DropRoot(char *user)
{
#if defined(LINUX) && defined (FEAT_LINUXCAPS)
SYS_Linux_DropRoot(user);
#endif
}
/* ================================================== */
void SYS_SetScheduler(int SchedPriority)
{
#if defined(LINUX) && defined(HAVE_SCHED_SETSCHEDULER)
SYS_Linux_SetScheduler(SchedPriority);
#endif
;;
}
void SYS_MemLockAll(int LockAll)
{
#if defined(LINUX) && defined(HAVE_MLOCKALL)
SYS_Linux_MemLockAll(LockAll);
#endif
;;
}
/* ================================================== */