java.lang.Object | |
↳ | com.facebook.imagepipeline.memory.PoolParams |
Config parameters for pools (BasePool
. Supplied via a provider.
maxSizeSoftCap
This represents a soft cap on the size of the pool. When the pool size
hits this limit, the pool tries to trim its free space until either the pool size is below the
soft cap, or the free space is zero. Note that allocations will not fail because we have exceeded
the soft cap
maxSizeHardCap
The hard cap represents a hard cap on the size of the pool. When the
pool size exceeds this cap, allocations will start failing with a BasePool.PoolSizeViolationException
bucketSizes
The pool can be configured with a set of 'sizes' - a bucket is created
for each such size. Additionally, each bucket can have a a max-length specified, which is the sum
of the used and free items in that bucket. As with the MaxSize parameter above, the maxLength
here is a soft cap, in that it will not cause an exception on get; it simply controls the release
path When the bucket sizes are specified upfront, the pool may still get requests for non
standard sizes. Such cases are treated as plain alloc/free calls i.e. the values are not
maintained in the pool. If this parameter is null, then the pool will create buckets on demand
minBucketSize
This represents the minimum size of the buckets in the pool. This
assures that all buckets can hold any element larger or equal to this size.
maxBucketSize
This represents the maximum size of the buckets in the pool. This
restricts all buckets to only accept elements smaller or equal to this size. If this size is
exceeded, an exception will be thrown.
Constants | |||||||||||
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int | IGNORE_THREADS | If maxNumThreads is set to this level, the pool doesn't actually care what it is |
Fields | |||||||||||
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public String | bitmapPoolType | ||||||||||
public final SparseIntArray | bucketSizes | ||||||||||
public boolean | fixBucketsReinitialization | ||||||||||
public final int | maxBucketSize | ||||||||||
public final int | maxNumThreads | The maximum number of threads that may be accessing this pool. | |||||||||
public final int | maxSizeHardCap | ||||||||||
public final int | maxSizeSoftCap | ||||||||||
public final int | minBucketSize |
Public Constructors | |||||||||||
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PoolParams(int maxSize, SparseIntArray bucketSizes)
Set up pool params
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PoolParams(int maxSizeSoftCap, int maxSizeHardCap, SparseIntArray bucketSizes)
Set up pool params
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PoolParams(int maxSizeSoftCap, int maxSizeHardCap, SparseIntArray bucketSizes, int minBucketSize, int maxBucketSize, int maxNumThreads)
Set up pool params
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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If maxNumThreads is set to this level, the pool doesn't actually care what it is
The maximum number of threads that may be accessing this pool.
Pool implementations may or may not need this to be set.
Set up pool params
maxSize | soft-cap and hard-cap on size of the pool |
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bucketSizes | (optional) bucket sizes and lengths for the pool |
Set up pool params
maxSizeSoftCap | soft cap on max size of the pool |
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maxSizeHardCap | hard cap on max size of the pool |
bucketSizes | (optional) bucket sizes and lengths for the pool |
Set up pool params
maxSizeSoftCap | soft cap on max size of the pool |
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maxSizeHardCap | hard cap on max size of the pool |
bucketSizes | (optional) bucket sizes and lengths for the pool |
minBucketSize | min bucket size for the pool |
maxBucketSize | max bucket size for the pool |
maxNumThreads | the maximum number of threads in the pool, or -1 if the pool doesn't care |