Class MPI
- java.lang.Object
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- mpi.MPI
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public final class MPI extends java.lang.Object
MPI environment.
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Field Summary
Fields Modifier and Type Field Description static int
ANY_SOURCE
static int
ANY_TAG
static int
APPNUM
static Op
BAND
static Datatype
BOOLEAN
static Op
BOR
static int
BSEND_OVERHEAD
static Op
BXOR
static Datatype
BYTE
static int
CART
static Datatype
CHAR
static Intracomm
COMM_SELF
static Intracomm
COMM_WORLD
static int
CONGRUENT
static Datatype
DATATYPE_NULL
static int
DISPLACEMENT_CURRENT
static int
DIST_GRAPH
static int
DISTRIBUTE_BLOCK
static int
DISTRIBUTE_CYCLIC
static int
DISTRIBUTE_DFLT_DARG
static int
DISTRIBUTE_NONE
static Datatype
DOUBLE
static Datatype
DOUBLE_COMPLEX
static Datatype
DOUBLE_INT
Struct which must be used withdoubleInt
.static DoubleInt
doubleInt
Struct object forDOUBLE_INT
datatype.static int
ERR_ACCESS
static int
ERR_AMODE
static int
ERR_ARG
static int
ERR_ASSERT
static int
ERR_BAD_FILE
static int
ERR_BASE
static int
ERR_BUFFER
static int
ERR_COMM
static int
ERR_CONVERSION
static int
ERR_COUNT
static int
ERR_DIMS
static int
ERR_DISP
static int
ERR_DUP_DATAREP
static int
ERR_FILE
static int
ERR_FILE_EXISTS
static int
ERR_FILE_IN_USE
static int
ERR_GROUP
static int
ERR_IN_STATUS
static int
ERR_INFO
static int
ERR_INFO_KEY
static int
ERR_INFO_NOKEY
static int
ERR_INFO_VALUE
static int
ERR_INTERN
static int
ERR_IO
static int
ERR_KEYVAL
static int
ERR_LASTCODE
static int
ERR_LOCKTYPE
static int
ERR_NAME
static int
ERR_NO_MEM
static int
ERR_NO_SPACE
static int
ERR_NO_SUCH_FILE
static int
ERR_NOT_SAME
static int
ERR_OP
static int
ERR_OTHER
static int
ERR_PENDING
static int
ERR_PORT
static int
ERR_QUOTA
static int
ERR_RANK
static int
ERR_READ_ONLY
static int
ERR_REQUEST
static int
ERR_RMA_CONFLICT
static int
ERR_RMA_SYNC
static int
ERR_ROOT
static int
ERR_SERVICE
static int
ERR_SIZE
static int
ERR_SPAWN
static int
ERR_SYSRESOURCE
static int
ERR_TAG
static int
ERR_TOPOLOGY
static int
ERR_TRUNCATE
static int
ERR_TYPE
static int
ERR_UNKNOWN
static int
ERR_UNSUPPORTED_DATAREP
static int
ERR_UNSUPPORTED_OPERATION
static int
ERR_WIN
static Errhandler
ERRORS_ARE_FATAL
static Errhandler
ERRORS_RETURN
static Datatype
FLOAT
static Datatype
FLOAT_COMPLEX
static Datatype
FLOAT_INT
Struct which must be used withfloatInt
.static FloatInt
floatInt
Struct object forFLOAT_INT
datatype.static int
GRAPH
static Group
GROUP_EMPTY
static int
HOST
static int
IDENT
static Info
INFO_ENV
static Info
INFO_NULL
static Datatype
INT
static Int2
int2
Struct object forINT2
datatype.static Datatype
INT2
Struct which must be used withint2
.static int
IO
static int
KEYVAL_INVALID
static Op
LAND
static int
LASTUSEDCODE
static int
LOCK_EXCLUSIVE
static int
LOCK_SHARED
static Datatype
LONG
static Datatype
LONG_INT
Struct which must be used withlongInt
.static LongInt
longInt
Struct object forLONG_INT
datatype.static Op
LOR
static Op
LXOR
static Op
MAX
static int
MAX_DATAREP_STRING
static int
MAX_INFO_KEY
static int
MAX_INFO_VAL
static int
MAX_OBJECT_NAME
static int
MAX_PORT_NAME
static Op
MAXLOC
Global maximum operator.static Op
MIN
static Op
MINLOC
Global minimum operator.static int
MODE_APPEND
static int
MODE_CREATE
static int
MODE_DELETE_ON_CLOSE
static int
MODE_EXCL
static int
MODE_NOCHECK
static int
MODE_NOPRECEDE
static int
MODE_NOPUT
static int
MODE_NOSTORE
static int
MODE_NOSUCCEED
static int
MODE_RDONLY
static int
MODE_RDWR
static int
MODE_SEQUENTIAL
static int
MODE_UNIQUE_OPEN
static int
MODE_WRONLY
static Op
NO_OP
static int
ORDER_C
static int
ORDER_FORTRAN
static Datatype
PACKED
static int
PROC_NULL
static Op
PROD
static Op
REPLACE
static Request
REQUEST_NULL
static int
ROOT
static int
SEEK_CUR
static int
SEEK_END
static int
SEEK_SET
static Datatype
SHORT
static Datatype
SHORT_INT
Struct which must be used withshortInt
.static ShortInt
shortInt
Struct object forSHORT_INT
datatype.static int
SIMILAR
static int
SUBVERSION
static int
SUCCESS
static Op
SUM
static int
TAG_UB
static int
THREAD_FUNNELED
static int
THREAD_MULTIPLE
static int
THREAD_SERIALIZED
static int
THREAD_SINGLE
static int
UNDEFINED
static int
UNEQUAL
static int
UNIVERSE_SIZE
static int
VERSION
static int
WIN_BASE
static int
WIN_DISP_UNIT
static int
WIN_SIZE
static int
WTIME_IS_GLOBAL
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Constructor Summary
Constructors Constructor Description MPI()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description protected static void
assertDirectBuffer(java.nio.Buffer buf)
Asserts that a buffer is direct.protected static void
assertDirectBuffer(java.nio.Buffer sendbuf, java.nio.Buffer recvbuf)
Asserts that buffers are direct.static void
attachBuffer(byte[] buffer)
Attaches a user-provided buffer for sending.protected static java.lang.Object
attrGet(byte[] value)
protected static byte[]
attrSet(java.lang.Object value)
protected static void
check()
Check if MPI has been initialized and hasn't been finalized.static byte[]
detachBuffer()
Removes an existing buffer (for use in sending).static void
Finalize()
Finalize MPI.static java.lang.String
getLibVersion()
Returns the version of the MPI Librarystatic java.lang.String
getProcessorName()
Returns the name of the processor on which it is called.static Version
getVersion()
Returns a version object representing the version of MPI being used.static java.lang.String[]
Init(java.lang.String[] args)
Initialize MPI.static int
InitThread(java.lang.String[] args, int required)
Initialize MPI with threads.protected static boolean
isDirectBuffer(java.lang.Object obj)
Checks if an object is a direct buffer.static boolean
isFinalized()
Test if MPI has been finalized.protected static boolean
isHeapBuffer(java.lang.Object obj)
Checks if an object is a heap buffer.static boolean
isInitialized()
Test if MPI has been initialized.static boolean
isThreadMain()
Java binding of the MPI operationMPI_IS_THREAD_MAIN
.static java.nio.ByteBuffer
newByteBuffer(int capacity)
Allocates a new direct byte buffer.static java.nio.CharBuffer
newCharBuffer(int capacity)
Allocates a new direct char buffer.static java.nio.DoubleBuffer
newDoubleBuffer(int capacity)
Allocates a new direct double buffer.static java.nio.FloatBuffer
newFloatBuffer(int capacity)
Allocates a new direct float buffer.static java.nio.IntBuffer
newIntBuffer(int capacity)
Allocates a new direct int buffer.static java.nio.LongBuffer
newLongBuffer(int capacity)
Allocates a new direct long buffer.static java.nio.ShortBuffer
newShortBuffer(int capacity)
Allocates a new direct short buffer.static int
queryThread()
Java binding of the MPI operationMPI_QUERY_THREAD
.static java.nio.ByteBuffer
slice(byte[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.CharBuffer
slice(char[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.DoubleBuffer
slice(double[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.FloatBuffer
slice(float[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.IntBuffer
slice(int[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.LongBuffer
slice(long[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.ShortBuffer
slice(short[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.ByteBuffer
slice(java.nio.ByteBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.CharBuffer
slice(java.nio.CharBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.DoubleBuffer
slice(java.nio.DoubleBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.FloatBuffer
slice(java.nio.FloatBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.IntBuffer
slice(java.nio.IntBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.LongBuffer
slice(java.nio.LongBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static java.nio.ShortBuffer
slice(java.nio.ShortBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.static double
wtick()
Returns resolution of timer.static double
wtime()
Returns an elapsed time on the calling processor.
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Field Detail
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COMM_WORLD
public static final Intracomm COMM_WORLD
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COMM_SELF
public static final Intracomm COMM_SELF
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THREAD_SINGLE
public static final int THREAD_SINGLE
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THREAD_FUNNELED
public static final int THREAD_FUNNELED
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THREAD_SERIALIZED
public static final int THREAD_SERIALIZED
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THREAD_MULTIPLE
public static final int THREAD_MULTIPLE
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GRAPH
public static final int GRAPH
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DIST_GRAPH
public static final int DIST_GRAPH
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CART
public static final int CART
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ANY_SOURCE
public static final int ANY_SOURCE
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ANY_TAG
public static final int ANY_TAG
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MAX
public static final Op MAX
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MIN
public static final Op MIN
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SUM
public static final Op SUM
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PROD
public static final Op PROD
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LAND
public static final Op LAND
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BAND
public static final Op BAND
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LOR
public static final Op LOR
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BOR
public static final Op BOR
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LXOR
public static final Op LXOR
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BXOR
public static final Op BXOR
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REPLACE
public static final Op REPLACE
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NO_OP
public static final Op NO_OP
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MINLOC
public static final Op MINLOC
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DATATYPE_NULL
public static final Datatype DATATYPE_NULL
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BYTE
public static final Datatype BYTE
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CHAR
public static final Datatype CHAR
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SHORT
public static final Datatype SHORT
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BOOLEAN
public static final Datatype BOOLEAN
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INT
public static final Datatype INT
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LONG
public static final Datatype LONG
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FLOAT
public static final Datatype FLOAT
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DOUBLE
public static final Datatype DOUBLE
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PACKED
public static final Datatype PACKED
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FLOAT_COMPLEX
public static final Datatype FLOAT_COMPLEX
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DOUBLE_COMPLEX
public static final Datatype DOUBLE_COMPLEX
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doubleInt
public static final DoubleInt doubleInt
Struct object forDOUBLE_INT
datatype.
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REQUEST_NULL
public static final Request REQUEST_NULL
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GROUP_EMPTY
public static final Group GROUP_EMPTY
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INFO_ENV
public static final Info INFO_ENV
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INFO_NULL
public static final Info INFO_NULL
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PROC_NULL
public static final int PROC_NULL
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UNDEFINED
public static final int UNDEFINED
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IDENT
public static final int IDENT
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CONGRUENT
public static final int CONGRUENT
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SIMILAR
public static final int SIMILAR
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UNEQUAL
public static final int UNEQUAL
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TAG_UB
public static final int TAG_UB
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HOST
public static final int HOST
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IO
public static final int IO
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WTIME_IS_GLOBAL
public static final int WTIME_IS_GLOBAL
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APPNUM
public static final int APPNUM
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LASTUSEDCODE
public static final int LASTUSEDCODE
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UNIVERSE_SIZE
public static final int UNIVERSE_SIZE
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WIN_BASE
public static final int WIN_BASE
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WIN_SIZE
public static final int WIN_SIZE
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WIN_DISP_UNIT
public static final int WIN_DISP_UNIT
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VERSION
public static final int VERSION
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SUBVERSION
public static final int SUBVERSION
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ROOT
public static final int ROOT
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KEYVAL_INVALID
public static final int KEYVAL_INVALID
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BSEND_OVERHEAD
public static final int BSEND_OVERHEAD
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MAX_OBJECT_NAME
public static final int MAX_OBJECT_NAME
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MAX_PORT_NAME
public static final int MAX_PORT_NAME
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MAX_DATAREP_STRING
public static final int MAX_DATAREP_STRING
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MAX_INFO_KEY
public static final int MAX_INFO_KEY
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MAX_INFO_VAL
public static final int MAX_INFO_VAL
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ORDER_C
public static final int ORDER_C
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ORDER_FORTRAN
public static final int ORDER_FORTRAN
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DISTRIBUTE_BLOCK
public static final int DISTRIBUTE_BLOCK
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DISTRIBUTE_CYCLIC
public static final int DISTRIBUTE_CYCLIC
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DISTRIBUTE_NONE
public static final int DISTRIBUTE_NONE
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DISTRIBUTE_DFLT_DARG
public static final int DISTRIBUTE_DFLT_DARG
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MODE_CREATE
public static final int MODE_CREATE
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MODE_RDONLY
public static final int MODE_RDONLY
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MODE_WRONLY
public static final int MODE_WRONLY
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MODE_RDWR
public static final int MODE_RDWR
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MODE_DELETE_ON_CLOSE
public static final int MODE_DELETE_ON_CLOSE
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MODE_UNIQUE_OPEN
public static final int MODE_UNIQUE_OPEN
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MODE_EXCL
public static final int MODE_EXCL
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MODE_APPEND
public static final int MODE_APPEND
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MODE_SEQUENTIAL
public static final int MODE_SEQUENTIAL
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DISPLACEMENT_CURRENT
public static final int DISPLACEMENT_CURRENT
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SEEK_SET
public static final int SEEK_SET
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SEEK_CUR
public static final int SEEK_CUR
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SEEK_END
public static final int SEEK_END
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MODE_NOCHECK
public static final int MODE_NOCHECK
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MODE_NOPRECEDE
public static final int MODE_NOPRECEDE
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MODE_NOPUT
public static final int MODE_NOPUT
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MODE_NOSTORE
public static final int MODE_NOSTORE
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MODE_NOSUCCEED
public static final int MODE_NOSUCCEED
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LOCK_EXCLUSIVE
public static final int LOCK_EXCLUSIVE
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LOCK_SHARED
public static final int LOCK_SHARED
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ERRORS_ARE_FATAL
public static final Errhandler ERRORS_ARE_FATAL
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ERRORS_RETURN
public static final Errhandler ERRORS_RETURN
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SUCCESS
public static final int SUCCESS
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ERR_BUFFER
public static final int ERR_BUFFER
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ERR_COUNT
public static final int ERR_COUNT
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ERR_TYPE
public static final int ERR_TYPE
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ERR_TAG
public static final int ERR_TAG
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ERR_COMM
public static final int ERR_COMM
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ERR_RANK
public static final int ERR_RANK
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ERR_REQUEST
public static final int ERR_REQUEST
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ERR_ROOT
public static final int ERR_ROOT
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ERR_GROUP
public static final int ERR_GROUP
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ERR_OP
public static final int ERR_OP
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ERR_TOPOLOGY
public static final int ERR_TOPOLOGY
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ERR_DIMS
public static final int ERR_DIMS
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ERR_ARG
public static final int ERR_ARG
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ERR_UNKNOWN
public static final int ERR_UNKNOWN
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ERR_TRUNCATE
public static final int ERR_TRUNCATE
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ERR_OTHER
public static final int ERR_OTHER
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ERR_INTERN
public static final int ERR_INTERN
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ERR_IN_STATUS
public static final int ERR_IN_STATUS
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ERR_PENDING
public static final int ERR_PENDING
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ERR_ACCESS
public static final int ERR_ACCESS
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ERR_AMODE
public static final int ERR_AMODE
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ERR_ASSERT
public static final int ERR_ASSERT
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ERR_BAD_FILE
public static final int ERR_BAD_FILE
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ERR_BASE
public static final int ERR_BASE
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ERR_CONVERSION
public static final int ERR_CONVERSION
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ERR_DISP
public static final int ERR_DISP
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ERR_DUP_DATAREP
public static final int ERR_DUP_DATAREP
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ERR_FILE_EXISTS
public static final int ERR_FILE_EXISTS
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ERR_FILE_IN_USE
public static final int ERR_FILE_IN_USE
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ERR_FILE
public static final int ERR_FILE
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ERR_INFO_KEY
public static final int ERR_INFO_KEY
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ERR_INFO_NOKEY
public static final int ERR_INFO_NOKEY
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ERR_INFO_VALUE
public static final int ERR_INFO_VALUE
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ERR_INFO
public static final int ERR_INFO
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ERR_IO
public static final int ERR_IO
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ERR_KEYVAL
public static final int ERR_KEYVAL
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ERR_LOCKTYPE
public static final int ERR_LOCKTYPE
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ERR_NAME
public static final int ERR_NAME
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ERR_NO_MEM
public static final int ERR_NO_MEM
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ERR_NOT_SAME
public static final int ERR_NOT_SAME
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ERR_NO_SPACE
public static final int ERR_NO_SPACE
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ERR_NO_SUCH_FILE
public static final int ERR_NO_SUCH_FILE
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ERR_PORT
public static final int ERR_PORT
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ERR_QUOTA
public static final int ERR_QUOTA
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ERR_READ_ONLY
public static final int ERR_READ_ONLY
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ERR_RMA_CONFLICT
public static final int ERR_RMA_CONFLICT
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ERR_RMA_SYNC
public static final int ERR_RMA_SYNC
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ERR_SERVICE
public static final int ERR_SERVICE
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ERR_SIZE
public static final int ERR_SIZE
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ERR_SPAWN
public static final int ERR_SPAWN
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ERR_UNSUPPORTED_DATAREP
public static final int ERR_UNSUPPORTED_DATAREP
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ERR_UNSUPPORTED_OPERATION
public static final int ERR_UNSUPPORTED_OPERATION
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ERR_WIN
public static final int ERR_WIN
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ERR_LASTCODE
public static final int ERR_LASTCODE
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ERR_SYSRESOURCE
public static final int ERR_SYSRESOURCE
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Method Detail
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Init
public static java.lang.String[] Init(java.lang.String[] args) throws MPIException
Initialize MPI.Java binding of the MPI operation
MPI_INIT
.- Parameters:
args
- arguments to themain
method.- Returns:
- arguments
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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InitThread
public static int InitThread(java.lang.String[] args, int required) throws MPIException
Initialize MPI with threads.Java binding of the MPI operation
MPI_INIT_THREAD
.- Parameters:
args
- arguments to themain
method.required
- desired level of thread support- Returns:
- provided level of thread support
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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queryThread
public static int queryThread() throws MPIException
Java binding of the MPI operationMPI_QUERY_THREAD
.- Returns:
- provided level of thread support
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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isThreadMain
public static boolean isThreadMain() throws MPIException
Java binding of the MPI operationMPI_IS_THREAD_MAIN
.- Returns:
- true if it is the main thread
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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Finalize
public static void Finalize() throws MPIException
Finalize MPI.Java binding of the MPI operation
MPI_FINALIZE
.- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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wtime
public static double wtime() throws MPIException
Returns an elapsed time on the calling processor.Java binding of the MPI operation
MPI_WTIME
.- Returns:
- time in seconds since an arbitrary time in the past.
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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wtick
public static double wtick() throws MPIException
Returns resolution of timer.Java binding of the MPI operation
MPI_WTICK
.- Returns:
- resolution of
wtime
in seconds. - Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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getVersion
public static Version getVersion()
Returns a version object representing the version of MPI being used.Java binding of the MPI operation
MPI_GET_VERSION
.- Returns:
- A version object representing the version and subversion of MPI being used.
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getLibVersion
public static java.lang.String getLibVersion()
Returns the version of the MPI LibraryJava binding of the MPI operation
MPI_GET_LIBRARY_VERSION
.- Returns:
- A string representation of the MPI Library
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getProcessorName
public static java.lang.String getProcessorName() throws MPIException
Returns the name of the processor on which it is called.Java binding of the MPI operation
MPI_GET_PROCESSOR_NAME
.- Returns:
- A unique specifier for the actual node.
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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isInitialized
public static boolean isInitialized() throws MPIException
Test if MPI has been initialized.Java binding of the MPI operation
MPI_INITIALIZED
.- Returns:
true
ifInit
has been called,false
otherwise.- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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isFinalized
public static boolean isFinalized() throws MPIException
Test if MPI has been finalized.Java binding of the MPI operation
MPI_FINALIZED
.- Returns:
true
ifFinalize
has been called,false
otherwise.- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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attachBuffer
public static void attachBuffer(byte[] buffer) throws MPIException
Attaches a user-provided buffer for sending.Java binding of the MPI operation
MPI_BUFFER_ATTACH
.- Parameters:
buffer
- initial buffer- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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detachBuffer
public static byte[] detachBuffer() throws MPIException
Removes an existing buffer (for use in sending).Java binding of the MPI operation
MPI_BUFFER_DETACH
.- Returns:
- initial buffer
- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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check
protected static void check() throws MPIException
Check if MPI has been initialized and hasn't been finalized.- Throws:
MPIException
- Signals that an MPI exception of some sort has occurred.
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attrSet
protected static byte[] attrSet(java.lang.Object value) throws MPIException
- Throws:
MPIException
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attrGet
protected static java.lang.Object attrGet(byte[] value) throws MPIException
- Throws:
MPIException
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newByteBuffer
public static java.nio.ByteBuffer newByteBuffer(int capacity)
Allocates a new direct byte buffer.- Parameters:
capacity
- The new buffer's capacity, in bytes- Returns:
- The new byte buffer
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newCharBuffer
public static java.nio.CharBuffer newCharBuffer(int capacity)
Allocates a new direct char buffer.- Parameters:
capacity
- The new buffer's capacity, in chars- Returns:
- The new char buffer
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newShortBuffer
public static java.nio.ShortBuffer newShortBuffer(int capacity)
Allocates a new direct short buffer.- Parameters:
capacity
- The new buffer's capacity, in shorts- Returns:
- The new short buffer
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newIntBuffer
public static java.nio.IntBuffer newIntBuffer(int capacity)
Allocates a new direct int buffer.- Parameters:
capacity
- The new buffer's capacity, in ints- Returns:
- The new int buffer
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newLongBuffer
public static java.nio.LongBuffer newLongBuffer(int capacity)
Allocates a new direct long buffer.- Parameters:
capacity
- The new buffer's capacity, in longs- Returns:
- The new long buffer
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newFloatBuffer
public static java.nio.FloatBuffer newFloatBuffer(int capacity)
Allocates a new direct float buffer.- Parameters:
capacity
- The new buffer's capacity, in floats- Returns:
- The new float buffer
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newDoubleBuffer
public static java.nio.DoubleBuffer newDoubleBuffer(int capacity)
Allocates a new direct double buffer.- Parameters:
capacity
- The new buffer's capacity, in doubles- Returns:
- The new double buffer
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assertDirectBuffer
protected static void assertDirectBuffer(java.nio.Buffer buf)
Asserts that a buffer is direct.- Parameters:
buf
- buffer
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assertDirectBuffer
protected static void assertDirectBuffer(java.nio.Buffer sendbuf, java.nio.Buffer recvbuf)
Asserts that buffers are direct.- Parameters:
sendbuf
- The send bufferrecvbuf
- The receive buffer
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isDirectBuffer
protected static boolean isDirectBuffer(java.lang.Object obj)
Checks if an object is a direct buffer.- Parameters:
obj
- object- Returns:
- true if the object is a direct buffer
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isHeapBuffer
protected static boolean isHeapBuffer(java.lang.Object obj)
Checks if an object is a heap buffer.- Parameters:
obj
- object- Returns:
- true if the object is a heap buffer
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slice
public static java.nio.ByteBuffer slice(java.nio.ByteBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
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slice
public static java.nio.CharBuffer slice(java.nio.CharBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
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slice
public static java.nio.ShortBuffer slice(java.nio.ShortBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.IntBuffer slice(java.nio.IntBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.LongBuffer slice(java.nio.LongBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.FloatBuffer slice(java.nio.FloatBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.DoubleBuffer slice(java.nio.DoubleBuffer buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.ByteBuffer slice(byte[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.CharBuffer slice(char[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.ShortBuffer slice(short[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.IntBuffer slice(int[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.LongBuffer slice(long[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.FloatBuffer slice(float[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
slice
public static java.nio.DoubleBuffer slice(double[] buf, int offset)
Creates a new buffer whose content is a shared subsequence of a buffer.The content of the new buffer will start at the specified offset.
- Parameters:
buf
- bufferoffset
- offset- Returns:
- the new buffer.
-
-