libvirt/src/util/virprocess.h
Peter Krempa 825df8c315 util: process: Refactor and fix virProcessSetAffinity
Refactor the function to return the bitmap instead of an integer and the
inner workings so that they make more sense.

This patch also fixes possible segfault on old systems that was
introduced by commit:

commit f1a43a8e41
Author: Hu Tao <hutao@cn.fujitsu.com>
Date:   Fri Sep 14 15:46:59 2012 +0800

    use virBitmap to store cpu affinity info
2015-06-03 14:20:25 +02:00

93 lines
2.7 KiB
C

/*
* virprocess.h: interaction with processes
*
* Copyright (C) 2010-2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#ifndef __VIR_PROCESS_H__
# define __VIR_PROCESS_H__
# include <sys/types.h>
# include "internal.h"
# include "virbitmap.h"
# include "virutil.h"
typedef enum {
VIR_PROC_POLICY_NONE = 0,
VIR_PROC_POLICY_BATCH,
VIR_PROC_POLICY_IDLE,
VIR_PROC_POLICY_FIFO,
VIR_PROC_POLICY_RR,
VIR_PROC_POLICY_LAST
} virProcessSchedPolicy;
VIR_ENUM_DECL(virProcessSchedPolicy);
char *
virProcessTranslateStatus(int status);
void
virProcessAbort(pid_t pid);
void virProcessExitWithStatus(int status) ATTRIBUTE_NORETURN;
int
virProcessWait(pid_t pid, int *exitstatus, bool raw)
ATTRIBUTE_RETURN_CHECK;
int virProcessKill(pid_t pid, int sig);
int virProcessKillPainfully(pid_t pid, bool force);
int virProcessSetAffinity(pid_t pid, virBitmapPtr map);
virBitmapPtr virProcessGetAffinity(pid_t pid);
int virProcessGetStartTime(pid_t pid,
unsigned long long *timestamp);
int virProcessGetNamespaces(pid_t pid,
size_t *nfdlist,
int **fdlist);
int virProcessSetNamespaces(size_t nfdlist,
int *fdlist);
int virProcessSetMaxMemLock(pid_t pid, unsigned long long bytes);
int virProcessSetMaxProcesses(pid_t pid, unsigned int procs);
int virProcessSetMaxFiles(pid_t pid, unsigned int files);
/* Callback to run code within the mount namespace tied to the given
* pid. This function must use only async-signal-safe functions, as
* it gets run after a fork of a multi-threaded process. The return
* value of this function is passed to _exit(), except that a
* negative value is treated as EXIT_CANCELED. */
typedef int (*virProcessNamespaceCallback)(pid_t pid, void *opaque);
int virProcessRunInMountNamespace(pid_t pid,
virProcessNamespaceCallback cb,
void *opaque);
int virProcessSetScheduler(pid_t pid,
virProcessSchedPolicy policy,
int priority);
#endif /* __VIR_PROCESS_H__ */