e4e3e411fc
Includes all MPI functions supported by Open MPI, including MPI-3 functions (as of about 2 weeks ago). Many changes compared to the prior generation of Java bindings; not much is left from the prior generation, actually. The changes include (but are not limited to): * Add support for more than just a subset of MPI-1 functions * Use typical Java case for symbol names * Support Java Direct buffers (giving darn-near "native C" performance) * Support "type struct" better than the prior generation * Make more of an effort for the Java bindings to be a thin layer over the back-end C bindings * ...and more A proper README with more information about what is supported, how to use these bindings, etc. will be committed shortly. This commit was SVN r29263.
109 строки
2.2 KiB
Java
109 строки
2.2 KiB
Java
package mpi;
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/**
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* Java binding of the MPI data type {@code MPI_LONG_INT}.
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*/
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public final class LongInt extends Struct
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{
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private final int lSize, iOff, iSize;
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/** The struct will be created only in MPI class. */
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protected LongInt(int longSize, int intOff, int intSize)
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{
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lSize = longSize;
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iSize = intSize;
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int lOff;
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switch(lSize)
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{
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case 4: lOff = addInt(); break;
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case 8: lOff = addLong(); break;
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default: throw new AssertionError("Unsupported long size: "+ lSize);
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}
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assert lOff == 0;
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setOffset(intOff);
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switch(iSize)
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{
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case 4: iOff = addInt(); break;
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case 8: iOff = addLong(); break;
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default: throw new AssertionError("Unsupported int size: "+ iSize);
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}
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assert(intOff == iOff);
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}
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/**
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* Creates a Data object.
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* @return new Data object.
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*/
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@Override protected LongInt.Data newData()
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{
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return new LongInt.Data();
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}
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/**
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* Class for reading/writing data in a struct stored in a byte buffer.
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*/
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public final class Data extends Struct.Data
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{
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/**
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* Gets the long value.
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* @return long value
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*/
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public long getValue()
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{
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switch(lSize)
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{
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case 8: return getLong(0);
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case 4: return getInt(0);
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default: throw new AssertionError();
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}
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}
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/**
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* Gets the int value.
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* @return int value
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*/
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public int getIndex()
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{
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switch(iSize)
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{
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case 4: return getInt(iOff);
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case 8: return (int)getLong(iOff);
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default: throw new AssertionError();
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}
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}
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/**
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* Puts the long value.
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* @param v long value
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*/
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public void putValue(long v)
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{
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switch(lSize)
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{
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case 8: putLong(0, v); break;
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case 4: putInt(0, (int)v); break;
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default: throw new AssertionError();
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}
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}
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/**
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* Puts the int value.
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* @param v int value
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*/
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public void putIndex(int v)
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{
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switch(iSize)
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{
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case 4: putInt(iOff, v); break;
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case 8: putLong(iOff, v); break;
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default: throw new AssertionError();
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}
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}
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} // Data
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} // LongInt
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