Module com.aoindustries.aoserv.daemon

Package com.aoindustries.aoserv.daemon.posix.linux

Class LinuxProcess

java.lang.Object

com.aoindustries.aoserv.daemon.posix.PosixProcess

com.aoindustries.aoserv.daemon.posix.linux.LinuxProcess

public class LinuxProcess
extends PosixProcess

A PosixProcess represents a process running on any POSIX machine.

Author:

AO Industries, Inc.

Field Summary

Fields inherited from class com.aoindustries.aoserv.daemon.posix.PosixProcess

pid

Constructor Summary

Constructors

Constructor	Description
LinuxProcess(int pid)	Constructs a Linux process given its process ID.

Method Summary

Modifier and Type	Method	Description
String[]	getCmdline()	Gets the command line from /proc/pid/cmdline, split on null bytes.
int	getGid()	Determines the group ID of the currently running process.
Map<String,String>	getStatus()	Gets the status from /proc/pid/status.
String	getStatus(String name)	Gets one field of the status from /proc/pid/status.
int	getUid()	Determines the user ID of the currently running process.
boolean	isRunning()	Determines if the process is currently running.

Methods inherited from class com.aoindustries.aoserv.daemon.posix.PosixProcess

killProc, signal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LinuxProcess

public LinuxProcess(int pid)

Constructs a Linux process given its process ID.

Method Details

getGid

public int getGid()
           throws IOException

Determines the group ID of the currently running process. The GID is considered the group owner of the file in the /proc directory. If the process is not running, a FileNotFoundException is thrown.

Specified by:

getGid in class PosixProcess

Throws:

IOException

getUid

public int getUid()
           throws IOException

Determines the user ID of the currently running process. The UID is considered the owner of the file in the /proc directory. If the process is not running, a FileNotFoundException is thrown.

Specified by:

getUid in class PosixProcess

Throws:

IOException

isRunning

public boolean isRunning()
                  throws IOException

Determines if the process is currently running. The process is considered running if a directory exists in /proc.

Specified by:

isRunning in class PosixProcess

Throws:

IOException

getCmdline

public String[] getCmdline()
                    throws IOException

Gets the command line from /proc/pid/cmdline, split on null bytes.

Throws:

IOException

getStatus

public Map<String,String> getStatus()
                             throws IOException

Gets the status from /proc/pid/status. The colon (:) is removed from the field names.

Throws:

IOException

See Also:

• getStatus(java.lang.String)

getStatus

public String getStatus(String name)
                 throws IOException

Gets one field of the status from /proc/pid/status. The colon (:) is removed from the field names.

Returns:

the corresponding value or null if not found

Throws:

IOException

See Also:

• getStatus()