Proc (one-nio 1.2.1 API)

java.lang.Object
- one.nio.os.Proc

```
public final class Proc
extends Object
```

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`CLONE_NEWCGROUP`
`static int`	`CLONE_NEWIPC`
`static int`	`CLONE_NEWNET`
`static int`	`CLONE_NEWPID`
`static int`	`CLONE_NEWUSER`
`static int`	`CLONE_NEWUTS`
`static int`	`IOPRIO_CLASS_BE`
`static int`	`IOPRIO_CLASS_IDLE`
`static int`	`IOPRIO_CLASS_RT`
`static boolean`	`IS_SUPPORTED`
`static int`	`SCHED_BATCH`
`static int`	`SCHED_IDLE`
`static int`	`SCHED_OTHER`

Constructor Summary

Constructors
Constructor and Description

Proc()

Constructors
Constructor and Description
`Proc()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static int`	`getpid()`
`static int`	`getppid()`
`static int`	`getpriority(int pid)` Obtain the nice value of a process
`static int`	`gettid()`
`static int`	`ioprio_get(int pid)`
`static int`	`ioprio_set(int pid, int ioprio)`
`static long`	`sched_getaffinity(int pid)`
`static int`	`sched_getscheduler(int pid)`
`static int`	`sched_setaffinity(int pid, long mask)`
`static int`	`sched_setscheduler(int pid, int policy)`
`static int`	`setns(int fd, int nstype)`
`static int`	`setpriority(int pid, int value)` Set the nice value of a process to value+ {NZERO}.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - IS_SUPPORTED
```
public static final boolean IS_SUPPORTED
```
  - IOPRIO_CLASS_RT
```
public static final int IOPRIO_CLASS_RT
```
    See Also:
    
    Constant Field Values
  - IOPRIO_CLASS_BE
```
public static final int IOPRIO_CLASS_BE
```
    See Also:
    
    Constant Field Values
  - IOPRIO_CLASS_IDLE
```
public static final int IOPRIO_CLASS_IDLE
```
    See Also:
    
    Constant Field Values
  - SCHED_OTHER
```
public static final int SCHED_OTHER
```
    See Also:
    
    Constant Field Values
  - SCHED_BATCH
```
public static final int SCHED_BATCH
```
    See Also:
    
    Constant Field Values
  - SCHED_IDLE
```
public static final int SCHED_IDLE
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWCGROUP
```
public static final int CLONE_NEWCGROUP
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWUTS
```
public static final int CLONE_NEWUTS
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWIPC
```
public static final int CLONE_NEWIPC
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWUSER
```
public static final int CLONE_NEWUSER
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWPID
```
public static final int CLONE_NEWPID
```
    See Also:
    
    Constant Field Values
  - CLONE_NEWNET
```
public static final int CLONE_NEWNET
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Proc
```
public Proc()
```
- Method Detail
  - gettid
```
public static int gettid()
```
  - getpid
```
public static int getpid()
```
  - getppid
```
public static int getppid()
```
  - sched_setaffinity
```
public static int sched_setaffinity(int pid,
                                    long mask)
```
  - sched_getaffinity
```
public static long sched_getaffinity(int pid)
```
  - ioprio_set
```
public static int ioprio_set(int pid,
                             int ioprio)
```
  - ioprio_get
```
public static int ioprio_get(int pid)
```
  - sched_setscheduler
```
public static int sched_setscheduler(int pid,
                                     int policy)
```
    Parameters:
    
    pid - pid or tid. 0 for current thread
    
    Returns:
    
    0 on success or errno on failure
  - sched_getscheduler
```
public static int sched_getscheduler(int pid)
```
    Parameters:
    
    pid - pid or tid. 0 for current thread
    
    Returns:
    
    the policy for the thread (a nonnegative integer)
  - getpriority
```
public static int getpriority(int pid)
```
    Obtain the nice value of a process
    
    Parameters:
    
    pid - pid or tid. 0 for current thread
    
    Returns:
    
    an integer in the range -{NZERO} to {NZERO}-1. Otherwise, -1 shall be returned and errno set to indicate the error.
  - setpriority
```
public static int setpriority(int pid,
                              int value)
```
    Set the nice value of a process to value+ {NZERO}. The default nice value is {NZERO}; lower nice values shall cause more favorable scheduling. While the range of valid nice values is [0,{NZERO}*2-1], implementations may enforce more restrictive limits. If value+ {NZERO} is less than the system's lowest supported nice value, setpriority() shall set the nice value to the lowest supported value; if value+ {NZERO} is greater than the system's highest supported nice value, setpriority() shall set the nice value to the highest supported value.
    
    Parameters:
    
    pid - pid or tid. 0 for current thread
    
    Returns:
    
    0 on success; otherwise, -1 shall be returned and errno set to indicate the error.
  - setns
```
public static int setns(int fd,
                        int nstype)
```
    Parameters:
    
    fd - is a file descriptor referring to one of the namespace entries in a /proc/[pid]/ns/ directory
    
    nstype - specifies which type of namespace the calling thread may be reassociated with. One of CLONE_* constants or 0 to allow any type of namespace to be joined
    
    Returns:
    
    0 on success or errno on failure

Class Proc

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

IS_SUPPORTED

IOPRIO_CLASS_RT

IOPRIO_CLASS_BE

IOPRIO_CLASS_IDLE

SCHED_OTHER

SCHED_BATCH

SCHED_IDLE

CLONE_NEWCGROUP

CLONE_NEWUTS

CLONE_NEWIPC

CLONE_NEWUSER

CLONE_NEWPID

CLONE_NEWNET

Constructor Detail

Proc

Method Detail

gettid

getpid

getppid

sched_setaffinity

sched_getaffinity

ioprio_set

ioprio_get

sched_setscheduler

sched_getscheduler

getpriority

setpriority

setns