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.
147 строки
2.9 KiB
Java
147 строки
2.9 KiB
Java
package mpi;
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/**
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* This class represents {@code MPI_Info}.
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*/
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public final class Info implements Freeable
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{
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protected long handle;
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protected static final long NULL = getNull();
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/**
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* Java binding of the MPI operation {@code MPI_INFO_CREATE}.
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*/
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public Info() throws MPIException
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{
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MPI.check();
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handle = create();
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}
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protected Info(long handle)
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{
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this.handle = handle;
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}
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private native long create();
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protected static Info newEnv()
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{
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return new Info(getEnv());
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}
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private native static long getEnv();
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private native static long getNull();
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/**
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* Java binding of the MPI operation {@code MPI_INFO_SET}.
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* @param key key
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* @param value value
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* @throws MPIException
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*/
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public void set(String key, String value) throws MPIException
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{
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MPI.check();
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set(handle, key, value);
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}
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private native void set(long handle, String key, String value)
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throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_SET}.
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* @param key key
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* @return value or {@code null} if key is not defined
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* @throws MPIException
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*/
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public String get(String key) throws MPIException
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{
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MPI.check();
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return get(handle, key);
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}
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private native String get(long handle, String key) throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_SET}.
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* @param key key
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* @throws MPIException
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*/
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public void delete(String key) throws MPIException
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{
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MPI.check();
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delete(handle, key);
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}
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private native void delete(long handle, String key) throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_GET_NKEYS}.
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* @return number of defined keys
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* @throws MPIException
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*/
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public int size() throws MPIException
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{
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MPI.check();
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return size(handle);
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}
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private native int size(long handle) throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_GET_NTHKEY}.
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* @param i key number
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* @return key
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* @throws MPIException
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*/
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public String getKey(int i) throws MPIException
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{
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MPI.check();
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return getKey(handle, i);
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}
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private native String getKey(long handle, int i) throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_DUP}.
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* @return info object
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*/
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@Override public Info clone()
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{
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try
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{
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MPI.check();
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return new Info(clone(handle));
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}
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catch(MPIException e)
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{
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throw new RuntimeException(e.getMessage());
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}
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}
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private native long clone(long handle) throws MPIException;
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/**
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* Java binding of the MPI operation {@code MPI_INFO_FREE}.
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* @throws MPIException
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*/
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@Override public void free() throws MPIException
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{
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MPI.check();
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handle = free(handle);
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}
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private native long free(long handle) throws MPIException;
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/**
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* Tests if the info object is {@code MPI_INFO_NULL} (has been freed).
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* @return true if the info object is {@code MPI_INFO_NULL}, false otherwise.
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*/
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public boolean isNull()
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{
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return isNull(handle);
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}
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private native boolean isNull(long handle);
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} // Info
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