Class CountLatch
- java.lang.Object
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- ghidra.util.CountLatch
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public class CountLatch extends java.lang.Object
Latch that has a count that can be incremented and decremented. Threads that call await() will block until the count is 0.
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Constructor Summary
Constructors Constructor Description CountLatch()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
await()
Causes the current thread to wait until the latch count is zero, unless the thread is interrupted.boolean
await(long timeout, java.util.concurrent.TimeUnit unit)
Causes the current thread to wait until the latch count is zero, unless the thread is interrupted, or the specified waiting time elapses.void
decrement()
Decrements the latch count and releases any waiting threads when the count reaches 0.int
getCount()
void
increment()
Increments the latch count.
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Method Detail
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increment
public void increment()
Increments the latch count.
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decrement
public void decrement()
Decrements the latch count and releases any waiting threads when the count reaches 0.
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getCount
public int getCount()
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await
public void await() throws java.lang.InterruptedException
Causes the current thread to wait until the latch count is zero, unless the thread is interrupted.If the current count is zero then this method returns immediately.
If the current count is greater than zero then the current thread becomes disabled for thread scheduling purposes and lies dormant until one of two things happen:
- The count reaches zero due to invocations of the
decrement()
method; or - Some other thread interrupts the current thread.
If the current thread:
- has its interrupted status set on entry to this method; or
- is interrupted while waiting,
InterruptedException
is thrown and the current thread's interrupted status is cleared.- Throws:
java.lang.InterruptedException
- if the current thread is interrupted while waiting
- The count reaches zero due to invocations of the
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await
public boolean await(long timeout, java.util.concurrent.TimeUnit unit) throws java.lang.InterruptedException
Causes the current thread to wait until the latch count is zero, unless the thread is interrupted, or the specified waiting time elapses.If the current count is zero then this method returns immediately with the value
true
.If the current count is greater than zero then the current thread becomes disabled for thread scheduling purposes and lies dormant until one of three things happen:
- The count reaches zero due to invocations of the
decrement()
method; or - Some other thread interrupts the current thread; or
- The specified waiting time elapses.
If the count reaches zero then the method returns with the value
true
.If the current thread:
- has its interrupted status set on entry to this method; or
- is interrupted while waiting,
InterruptedException
is thrown and the current thread's interrupted status is cleared.If the specified waiting time elapses then the value
false
is returned. If the time is less than or equal to zero, the method will not wait at all.- Parameters:
timeout
- the maximum time to waitunit
- the time unit of thetimeout
argument- Returns:
true
if the count reached zero andfalse
if the waiting time elapsed before the count reached zero- Throws:
java.lang.InterruptedException
- if the current thread is interrupted while waiting
- The count reaches zero due to invocations of the
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