mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-29 00:55:22 +00:00
c72e76c3d9
Right now, a caller waiting for a child process either requires the child to have status 0, or must use WIFEXITED() and friends itself. But in many cases, we want the middle ground of treating fatal signals as an error, and directly accessing the normal exit value without having to use WEXITSTATUS(), in order to easily detect an expected non-zero exit status. This adds the middle ground to the low-level virProcessWait; the next patch will add it to virCommand. * src/util/virprocess.h (virProcessWait): Alter signature. * src/util/virprocess.c (virProcessWait): Add parameter. (virProcessRunInMountNamespace): Adjust caller. * src/util/vircommand.c (virCommandWait): Likewise. * src/util/virfile.c (virFileAccessibleAs): Likewise. * src/lxc/lxc_container.c (lxcContainerHasReboot) (lxcContainerAvailable): Likewise. * daemon/libvirtd.c (daemonForkIntoBackground): Likewise. * tools/virt-login-shell.c (main): Likewise. * tools/virsh-domain.c (cmdLxcEnterNamespace): Likewise. * tests/testutils.c (virtTestCaptureProgramOutput): Likewise. * tests/commandtest.c (test23): Likewise. Signed-off-by: Eric Blake <eblake@redhat.com>
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/*
|
|
* virprocess.h: interaction with processes
|
|
*
|
|
* Copyright (C) 2010-2014 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"
|
|
|
|
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);
|
|
|
|
int virProcessGetAffinity(pid_t pid,
|
|
virBitmapPtr *map,
|
|
int maxcpu);
|
|
|
|
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);
|
|
#endif /* __VIR_PROCESS_H__ */
|