| java.lang.Object | ||
| ↳ | com.facebook.imagepipeline.memory.BasePool<V> | |
| ↳ | com.facebook.imagepipeline.memory.MemoryChunkPool | |
 Known Direct Subclasses
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Class Overview
Manages a pool of memory chunks (MemoryChunk)
Summary
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| abstract MemoryChunk |
alloc(int bucketedSize)
Allocates a new 'value' with the given size
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| void |
free(MemoryChunk value)
Frees the 'value'
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| int |
getBucketedSize(int requestSize)
Gets the bucketed size (typically something the same or larger than the requested size)
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| int |
getBucketedSizeForValue(MemoryChunk value)
Gets the bucketed size of the value
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| int |
getSizeInBytes(int bucketedSize)
Gets the size in bytes for the given bucketed size
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| boolean |
isReusable(MemoryChunk value)
Determines if the supplied value is 'reusable'.
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[Expand]
Inherited Methods | |||||||||||
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From class
com.facebook.imagepipeline.memory.BasePool
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From class
java.lang.Object
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From interface
com.facebook.common.memory.MemoryTrimmable
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From interface
com.facebook.common.memory.Pool
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From interface
com.facebook.common.references.ResourceReleaser
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Protected Methods
protected abstract MemoryChunk alloc (int bucketedSize)
Allocates a new 'value' with the given size
Parameters
| bucketedSize | the logical size to allocate |
|---|
Returns
- a new value
protected int getBucketedSize (int requestSize)
Gets the bucketed size (typically something the same or larger than the requested size)
Parameters
| requestSize | the logical request size |
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Returns
- the 'bucketed' size
protected int getBucketedSizeForValue (MemoryChunk value)
Gets the bucketed size of the value
Parameters
| value | the value |
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Returns
- bucketed size of the value
protected int getSizeInBytes (int bucketedSize)
Gets the size in bytes for the given bucketed size
Parameters
| bucketedSize | the bucketed size |
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Returns
- size in bytes
protected boolean isReusable (MemoryChunk value)
Determines if the supplied value is 'reusable'. This is called during release(Object),
and determines if the value can be added to the freelists of the pool (for future reuse), or
must be released right away. Subclasses can override this to provide custom implementations
Parameters
| value | the value to test for reusability |
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Returns
- true if the value is reusable