Package io.ably.lib.util

Class SystemClock

java.lang.Object

io.ably.lib.util.SystemClock

All Implemented Interfaces:

Clock

public class SystemClock
extends Object
implements Clock

Field Summary

Fields

Modifier and Type	Field	Description
static final SystemClock	INSTANCE

Constructor Summary

Constructors

Constructor	Description
SystemClock()

Method Summary

Modifier and Type	Method	Description
static Clock	clockFrom(ClientOptions opts)
long	currentTimeMillis()	Returns the current wall-clock time in milliseconds since the Unix epoch (1 January 1970 00:00:00 UTC), analogous to System.currentTimeMillis().
long	nanoTime()	Returns the current wall-clock time in nanoseconds since the Unix epoch (1 January 1970 00:00:00 UTC), analogous to System.nanoTime().
AblyTimer	newTimer(String name)	Creates a new AblyTimer backed by this clock.
void	waitOn(Object target, long timeout)	Causes the current thread to wait until either another thread calls Object.notify() / Object.notifyAll() on target, or the specified timeout elapses — analogous to Object.wait(long).

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final SystemClock INSTANCE

Constructor Details

SystemClock

public SystemClock()

Method Details

currentTimeMillis

public long currentTimeMillis()

Description copied from interface: Clock

Returns the current wall-clock time in milliseconds since the Unix epoch (1 January 1970 00:00:00 UTC), analogous to System.currentTimeMillis().

Specified by:

currentTimeMillis in interface Clock

Returns:

current time in milliseconds

nanoTime

public long nanoTime()

Description copied from interface: Clock

Returns the current wall-clock time in nanoseconds since the Unix epoch (1 January 1970 00:00:00 UTC), analogous to System.nanoTime().

Specified by:

nanoTime in interface Clock

Returns:

current time in nanoseconds

newTimer

public AblyTimer newTimer(String name)

Description copied from interface: Clock

Creates a new AblyTimer backed by this clock.

The name is used for diagnostic and logging purposes (e.g. as the underlying Timer thread name).

Specified by:

newTimer in interface Clock

Parameters:

name - a human-readable label for the timer; must not be null

Returns:

a new AblyTimer instance ready to schedule tasks

waitOn

public void waitOn(Object target,
 long timeout)
            throws InterruptedException

Description copied from interface: Clock

Causes the current thread to wait until either another thread calls Object.notify() / Object.notifyAll() on target, or the specified timeout elapses — analogous to Object.wait(long).

The caller must hold the monitor of target before invoking this method, exactly as required by Object.wait(long).

Specified by:

waitOn in interface Clock

Parameters:

target - the object whose monitor the current thread holds and will wait on; must not be null

timeout - maximum time to wait in milliseconds; 0 means wait indefinitely

Throws:

InterruptedException - if the current thread is interrupted while waiting

clockFrom

public static Clock clockFrom(ClientOptions opts)