Example usage for org.apache.spark.unsafe.array LongArray LongArray

Introduction

In this page you can find the example usage for org.apache.spark.unsafe.array LongArray LongArray.

Prototype

public LongArray(MemoryBlock memory) 

Source Link

Usage

From source file:edu.ucla.cs.wis.bigdatalog.spark.storage.map.BytesToBytesMap.java

License:Apache License

/**
 * Allocates a LongArray of `size`.//from w w  w .j a  v a2  s.  c om
 */
public LongArray allocateArray(long size) {
    long required = size * 8L;
    MemoryBlock page = memoryManager.allocatePage(required);
    if (page == null || page.size() < required) {
        long got = 0;
        if (page != null) {
            got = page.size();
            memoryManager.freePage(page);
        }
        //memoryManager.showMemoryUsage();
        throw new OutOfMemoryError("Unable to acquire " + required + " bytes of memory, got " + got);
    }
    used += required;
    return new LongArray(page);
}

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