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/*
* 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/>.
*
*/
#pragma once
#include <sys/types.h>
#include "internal.h"
#include "virbitmap.h"
#include "virenum.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) G_GNUC_NORETURN;
int
virProcessWait(pid_t pid, int *exitstatus, bool raw)
G_GNUC_WARN_UNUSED_RESULT;
int virProcessKill(pid_t pid, int sig);
int virProcessGroupKill(pid_t pid, int sig);
pid_t virProcessGroupGet(pid_t pid);
int virProcessKillPainfully(pid_t pid, bool force);
int virProcessKillPainfullyDelay(pid_t pid,
bool force,
unsigned int extradelay,
bool group);
int virProcessSetAffinity(pid_t pid, virBitmap *map, bool quiet);
virBitmap *virProcessGetAffinity(pid_t pid);
int virProcessGetPids(pid_t pid, size_t *npids, pid_t **pids);
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) G_NO_INLINE;
int virProcessSetMaxProcesses(pid_t pid, unsigned int procs);
int virProcessSetMaxFiles(pid_t pid, unsigned int files);
int virProcessSetMaxCoreSize(pid_t pid, unsigned long long bytes);
int virProcessGetMaxMemLock(pid_t pid, unsigned long long *bytes) G_NO_INLINE;
/* 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);
/**
* virProcessForkCallback:
* @ppid: parent's pid
* @opaque: opaque data
*
* Callback to run in fork()-ed process.
*
* Returns: 0 on success,
* -1 on error (treated as EXIT_CANCELED)
*/
typedef int (*virProcessForkCallback)(pid_t ppid,
void *opaque);
int virProcessRunInFork(virProcessForkCallback cb,
void *opaque)
G_NO_INLINE;
int virProcessSetupPrivateMountNS(void);
int virProcessSetScheduler(pid_t pid,
virProcessSchedPolicy policy,
int priority);
GStrv virProcessGetStat(pid_t pid, pid_t tid);
/* These constants are modelled after proc(5) */
enum {
VIR_PROCESS_STAT_PID,
VIR_PROCESS_STAT_COMM,
VIR_PROCESS_STAT_STATE,
VIR_PROCESS_STAT_PPID,
VIR_PROCESS_STAT_PGRP,
VIR_PROCESS_STAT_SESSION,
VIR_PROCESS_STAT_TTY_NR,
VIR_PROCESS_STAT_TPGID,
VIR_PROCESS_STAT_FLAGS,
VIR_PROCESS_STAT_MINFLT,
VIR_PROCESS_STAT_CMINFLT,
VIR_PROCESS_STAT_MAJFLT,
VIR_PROCESS_STAT_CMAJFLT,
VIR_PROCESS_STAT_UTIME,
VIR_PROCESS_STAT_STIME,
VIR_PROCESS_STAT_CUTIME,
VIR_PROCESS_STAT_CSTIME,
VIR_PROCESS_STAT_PRIORITY,
VIR_PROCESS_STAT_NICE,
VIR_PROCESS_STAT_NUM_THREADS,
VIR_PROCESS_STAT_ITREALVALUE,
VIR_PROCESS_STAT_STARTTIME,
VIR_PROCESS_STAT_VSIZE,
VIR_PROCESS_STAT_RSS,
VIR_PROCESS_STAT_RSSLIM,
VIR_PROCESS_STAT_STARTCODE,
VIR_PROCESS_STAT_ENDCODE,
VIR_PROCESS_STAT_STARTSTACK,
VIR_PROCESS_STAT_KSTKESP,
VIR_PROCESS_STAT_KSTKEIP,
VIR_PROCESS_STAT_SIGNAL,
VIR_PROCESS_STAT_BLOCKED,
VIR_PROCESS_STAT_SIGIGNORE,
VIR_PROCESS_STAT_SIGCATCH,
VIR_PROCESS_STAT_WCHAN,
VIR_PROCESS_STAT_NSWAP,
VIR_PROCESS_STAT_CNSWAP,
VIR_PROCESS_STAT_EXIT_SIGNAL,
VIR_PROCESS_STAT_PROCESSOR,
VIR_PROCESS_STAT_RT_PRIORITY,
VIR_PROCESS_STAT_POLICY,
VIR_PROCESS_STAT_DELAYACCT_BLKIO_TICKS,
VIR_PROCESS_STAT_GUEST_TIME,
VIR_PROCESS_STAT_CGUEST_TIME,
VIR_PROCESS_STAT_START_DATA,
VIR_PROCESS_STAT_END_DATA,
VIR_PROCESS_STAT_START_BRK,
VIR_PROCESS_STAT_ARG_START,
VIR_PROCESS_STAT_ARG_END,
VIR_PROCESS_STAT_ENV_START,
VIR_PROCESS_STAT_ENV_END,
VIR_PROCESS_STAT_EXIT_CODE,
};
/*
* At the time of writing there are 52 values reported in /proc/.../stat, the
* line below checks that the last one has the right value, increase accordingly
* based on proc(5) whenever adding new fields.
*/
G_STATIC_ASSERT(VIR_PROCESS_STAT_EXIT_CODE == 51);
typedef enum {
VIR_PROCESS_NAMESPACE_MNT = (1 << 1),
VIR_PROCESS_NAMESPACE_IPC = (1 << 2),
VIR_PROCESS_NAMESPACE_NET = (1 << 3),
VIR_PROCESS_NAMESPACE_PID = (1 << 4),
VIR_PROCESS_NAMESPACE_USER = (1 << 5),
VIR_PROCESS_NAMESPACE_UTS = (1 << 6),
} virProcessNamespaceFlags;
int virProcessNamespaceAvailable(unsigned int ns);
int virProcessGetStatInfo(unsigned long long *cpuTime,
unsigned long long *userTime,
unsigned long long *sysTime,
int *lastCpu,
long *vm_rss,
pid_t pid,
pid_t tid);
int virProcessGetSchedInfo(unsigned long long *cpuWait,
pid_t pid,
pid_t tid);
int virProcessSchedCoreAvailable(void);
int virProcessSchedCoreCreate(void);
int virProcessSchedCoreShareFrom(pid_t pid);
int virProcessSchedCoreShareTo(pid_t pid);
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