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-rw-r--r--src/java/com/sun/gluegen/runtime/BufferFactory.java240
-rwxr-xr-xsrc/java/com/sun/gluegen/runtime/CPU.java75
-rwxr-xr-xsrc/java/com/sun/gluegen/runtime/DynamicLookupHelper.java50
-rw-r--r--src/java/com/sun/gluegen/runtime/ProcAddressHelper.java74
-rw-r--r--src/java/com/sun/gluegen/runtime/StructAccessor.java191
5 files changed, 630 insertions, 0 deletions
diff --git a/src/java/com/sun/gluegen/runtime/BufferFactory.java b/src/java/com/sun/gluegen/runtime/BufferFactory.java
new file mode 100644
index 0000000..ce46d14
--- /dev/null
+++ b/src/java/com/sun/gluegen/runtime/BufferFactory.java
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen.runtime;
+
+import java.nio.*;
+
+public class BufferFactory {
+ public static final int SIZEOF_BYTE = 1;
+ public static final int SIZEOF_SHORT = 2;
+ public static final int SIZEOF_INT = 4;
+ public static final int SIZEOF_FLOAT = 4;
+ public static final int SIZEOF_LONG = 8;
+ public static final int SIZEOF_DOUBLE = 8;
+
+ public static ByteBuffer newDirectByteBuffer(int size) {
+ ByteBuffer buf = ByteBuffer.allocateDirect(size);
+ buf.order(ByteOrder.nativeOrder());
+ return buf;
+ }
+
+ /** Helper routine to tell whether a buffer is direct or not. Null
+ pointers are considered direct. isDirect() should really be
+ public in Buffer and not replicated in all subclasses. */
+ public static boolean isDirect(Buffer buf) {
+ if (buf == null) {
+ return true;
+ }
+ if (buf instanceof ByteBuffer) {
+ return ((ByteBuffer) buf).isDirect();
+ } else if (buf instanceof FloatBuffer) {
+ return ((FloatBuffer) buf).isDirect();
+ } else if (buf instanceof DoubleBuffer) {
+ return ((DoubleBuffer) buf).isDirect();
+ } else if (buf instanceof CharBuffer) {
+ return ((CharBuffer) buf).isDirect();
+ } else if (buf instanceof ShortBuffer) {
+ return ((ShortBuffer) buf).isDirect();
+ } else if (buf instanceof IntBuffer) {
+ return ((IntBuffer) buf).isDirect();
+ } else if (buf instanceof LongBuffer) {
+ return ((LongBuffer) buf).isDirect();
+ }
+ throw new RuntimeException("Unknown buffer type " + buf.getClass().getName());
+ }
+
+
+ /** Helper routine to get the Buffer byte offset by taking into
+ account the Buffer position and the underlying type. This is
+ the total offset for Direct Buffers. */
+
+ public static int getDirectBufferByteOffset(Buffer buf) {
+ if(buf == null) {
+ return 0;
+ }
+ if(buf instanceof ByteBuffer) {
+ return (buf.position());
+ } else if (buf instanceof FloatBuffer) {
+ return (buf.position() * SIZEOF_FLOAT);
+ } else if (buf instanceof IntBuffer) {
+ return (buf.position() * SIZEOF_INT);
+ } else if (buf instanceof ShortBuffer) {
+ return (buf.position() * SIZEOF_SHORT);
+ } else if (buf instanceof DoubleBuffer) {
+ return (buf.position() * SIZEOF_DOUBLE);
+ } else if (buf instanceof LongBuffer) {
+ return (buf.position() * SIZEOF_LONG);
+ }
+
+ throw new RuntimeException("Disallowed array backing store type in buffer "
+ + buf.getClass().getName());
+ }
+
+
+ /** Helper routine to return the array backing store reference from
+ a Buffer object. */
+
+ public static Object getArray(Buffer buf) {
+ if (buf == null) {
+ return null;
+ }
+ if(buf instanceof ByteBuffer) {
+ return ((ByteBuffer) buf).array();
+ } else if (buf instanceof FloatBuffer) {
+ return ((FloatBuffer) buf).array();
+ } else if (buf instanceof IntBuffer) {
+ return ((IntBuffer) buf).array();
+ } else if (buf instanceof ShortBuffer) {
+ return ((ShortBuffer) buf).array();
+ } else if (buf instanceof DoubleBuffer) {
+ return ((DoubleBuffer) buf).array();
+ } else if (buf instanceof LongBuffer) {
+ return ((LongBuffer) buf).array();
+ }
+
+ throw new RuntimeException("Disallowed array backing store type in buffer "
+ + buf.getClass().getName());
+ }
+
+
+ /** Helper routine to get the full byte offset from the beginning of
+ the array that is the storage for the indirect Buffer
+ object. The array offset also includes the position offset
+ within the buffer, in addition to any array offset. */
+
+ public static int getIndirectBufferByteOffset(Buffer buf) {
+ if(buf == null) {
+ return 0;
+ }
+ int pos = buf.position();
+ if(buf instanceof ByteBuffer) {
+ return (((ByteBuffer)buf).arrayOffset() + pos);
+ } else if(buf instanceof FloatBuffer) {
+ return (SIZEOF_FLOAT*(((FloatBuffer)buf).arrayOffset() + pos));
+ } else if(buf instanceof IntBuffer) {
+ return (SIZEOF_INT*(((IntBuffer)buf).arrayOffset() + pos));
+ } else if(buf instanceof ShortBuffer) {
+ return (SIZEOF_SHORT*(((ShortBuffer)buf).arrayOffset() + pos));
+ } else if(buf instanceof DoubleBuffer) {
+ return (SIZEOF_DOUBLE*(((DoubleBuffer)buf).arrayOffset() + pos));
+ } else if(buf instanceof LongBuffer) {
+ return (SIZEOF_LONG*(((LongBuffer)buf).arrayOffset() + pos));
+ }
+
+ throw new RuntimeException("Unknown buffer type " + buf.getClass().getName());
+ }
+
+ public static void rangeCheck(byte[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(char[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(short[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(int[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(long[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(float[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(double[] array, int offset, int minElementsRemaining) {
+ if (array.length < offset + minElementsRemaining) {
+ throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset));
+ }
+ }
+
+ public static void rangeCheck(Buffer buffer, int minElementsRemaining) {
+ if (buffer == null) {
+ return;
+ }
+
+ if (buffer.remaining() < minElementsRemaining) {
+ throw new IndexOutOfBoundsException("Required " + minElementsRemaining + " remaining elements in buffer, only had " + buffer.remaining());
+ }
+ }
+
+ public static void rangeCheckBytes(Buffer buffer, int minBytesRemaining) {
+ if (buffer == null) {
+ return;
+ }
+
+ int elementsRemaining = buffer.remaining();
+ int bytesRemaining = 0;
+ if (buffer instanceof ByteBuffer) {
+ bytesRemaining = elementsRemaining;
+ } else if (buffer instanceof FloatBuffer) {
+ bytesRemaining = elementsRemaining * SIZEOF_FLOAT;
+ } else if (buffer instanceof IntBuffer) {
+ bytesRemaining = elementsRemaining * SIZEOF_INT;
+ } else if (buffer instanceof ShortBuffer) {
+ bytesRemaining = elementsRemaining * SIZEOF_SHORT;
+ } else if (buffer instanceof DoubleBuffer) {
+ bytesRemaining = elementsRemaining * SIZEOF_DOUBLE;
+ } else if (buffer instanceof LongBuffer) {
+ bytesRemaining = elementsRemaining * SIZEOF_LONG;
+ }
+ if (bytesRemaining < minBytesRemaining) {
+ throw new IndexOutOfBoundsException("Required " + minBytesRemaining + " remaining bytes in buffer, only had " + bytesRemaining);
+ }
+ }
+}
diff --git a/src/java/com/sun/gluegen/runtime/CPU.java b/src/java/com/sun/gluegen/runtime/CPU.java
new file mode 100755
index 0000000..228ea0f
--- /dev/null
+++ b/src/java/com/sun/gluegen/runtime/CPU.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen.runtime;
+
+/** Provides information to autogenerated struct accessors about what
+ kind of architecture (32- or 64-bit) we are currently running
+ on. */
+
+public class CPU {
+ private static boolean is32Bit;
+
+ static {
+ // We don't seem to need an AccessController.doPrivileged() block
+ // here as these system properties are visible even to unsigned
+ // applets
+ // Note: this code is replicated in StructLayout.java
+ String os = System.getProperty("os.name").toLowerCase();
+ String cpu = System.getProperty("os.arch").toLowerCase();
+ if ((os.startsWith("windows") && cpu.equals("x86")) ||
+ (os.startsWith("linux") && cpu.equals("i386")) ||
+ (os.startsWith("mac os") && cpu.equals("ppc")) ||
+ (os.startsWith("sunos") && cpu.equals("sparc")) ||
+ (os.startsWith("sunos") && cpu.equals("x86")) ||
+ (os.startsWith("freebsd") && cpu.equals("i386"))) {
+ is32Bit = true;
+ } else if ((os.startsWith("linux") && cpu.equals("amd64")) ||
+ (os.startsWith("linux") && cpu.equals("x86_64")) ||
+ (os.startsWith("linux") && cpu.equals("ia64")) ||
+ (os.startsWith("sunos") && cpu.equals("amd64"))) {
+ } else {
+ throw new RuntimeException("Please port CPU detection (32/64 bit) to your platform (" + os + "/" + cpu + ")");
+ }
+ }
+
+ public static boolean is32Bit() {
+ return is32Bit;
+ }
+}
diff --git a/src/java/com/sun/gluegen/runtime/DynamicLookupHelper.java b/src/java/com/sun/gluegen/runtime/DynamicLookupHelper.java
new file mode 100755
index 0000000..07417f9
--- /dev/null
+++ b/src/java/com/sun/gluegen/runtime/DynamicLookupHelper.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen.runtime;
+
+/** Interface callers may use to use the ProcAddressHelper's {@link
+ ProcAddressHelper#resetProcAddressTable resetProcAddressTable}
+ helper method to install function pointers into a
+ ProcAddressTable. This must typically be written with native
+ code. */
+
+public interface DynamicLookupHelper {
+ public long dynamicLookupFunction(String funcName);
+}
diff --git a/src/java/com/sun/gluegen/runtime/ProcAddressHelper.java b/src/java/com/sun/gluegen/runtime/ProcAddressHelper.java
new file mode 100644
index 0000000..4cf0b76
--- /dev/null
+++ b/src/java/com/sun/gluegen/runtime/ProcAddressHelper.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen.runtime;
+
+/** Helper class containing constants and methods to assist with the
+ manipulation of auto-generated ProcAddressTables. */
+
+public class ProcAddressHelper {
+ public static final String PROCADDRESS_VAR_PREFIX = "_addressof_";
+
+ public static void resetProcAddressTable(Object table,
+ DynamicLookupHelper lookup) throws RuntimeException {
+ Class tableClass = table.getClass();
+ java.lang.reflect.Field[] fields = tableClass.getDeclaredFields();
+
+ for (int i = 0; i < fields.length; ++i) {
+ String addressFieldName = fields[i].getName();
+ if (!addressFieldName.startsWith(ProcAddressHelper.PROCADDRESS_VAR_PREFIX)) {
+ // not a proc address variable
+ continue;
+ }
+ int startOfMethodName = ProcAddressHelper.PROCADDRESS_VAR_PREFIX.length();
+ String funcName = addressFieldName.substring(startOfMethodName);
+ try {
+ java.lang.reflect.Field addressField = tableClass.getDeclaredField(addressFieldName);
+ assert(addressField.getType() == Long.TYPE);
+ long newProcAddress = lookup.dynamicLookupFunction(funcName);
+ // set the current value of the proc address variable in the table object
+ addressField.setLong(table, newProcAddress);
+ } catch (Exception e) {
+ throw new RuntimeException("Can not get proc address for method \"" +
+ funcName + "\": Couldn't set value of field \"" + addressFieldName +
+ "\" in class " + tableClass.getName(), e);
+ }
+ }
+ }
+}
diff --git a/src/java/com/sun/gluegen/runtime/StructAccessor.java b/src/java/com/sun/gluegen/runtime/StructAccessor.java
new file mode 100644
index 0000000..5a0fa5d
--- /dev/null
+++ b/src/java/com/sun/gluegen/runtime/StructAccessor.java
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.gluegen.runtime;
+
+import java.nio.*;
+
+public class StructAccessor {
+ private ByteBuffer bb;
+ private CharBuffer cb;
+ private DoubleBuffer db;
+ private FloatBuffer fb;
+ private IntBuffer ib;
+ private LongBuffer lb;
+ private ShortBuffer sb;
+
+ public StructAccessor(ByteBuffer bb) {
+ // Setting of byte order is concession to native code which needs
+ // to instantiate these
+ this.bb = bb.order(ByteOrder.nativeOrder());
+ }
+
+ public ByteBuffer getBuffer() {
+ return bb;
+ }
+
+ /** Return a slice of the current ByteBuffer starting at the
+ specified byte offset and extending the specified number of
+ bytes. Note that this method is not thread-safe with respect to
+ the other methods in this class. */
+ public ByteBuffer slice(int byteOffset, int byteLength) {
+ bb.position(byteOffset);
+ bb.limit(byteOffset + byteLength);
+ ByteBuffer newBuf = bb.slice();
+ bb.position(0);
+ bb.limit(bb.capacity());
+ return newBuf;
+ }
+
+ /** Retrieves the byte at the specified slot (byte offset). */
+ public byte getByteAt(int slot) {
+ return bb.get(slot);
+ }
+
+ /** Puts a byte at the specified slot (byte offset). */
+ public void setByteAt(int slot, byte v) {
+ bb.put(slot, v);
+ }
+
+ /** Retrieves the char at the specified slot (2-byte offset). */
+ public char getCharAt(int slot) {
+ return charBuffer().get(slot);
+ }
+
+ /** Puts a char at the specified slot (2-byte offset). */
+ public void setCharAt(int slot, char v) {
+ charBuffer().put(slot, v);
+ }
+
+ /** Retrieves the double at the specified slot (8-byte offset). */
+ public double getDoubleAt(int slot) {
+ return doubleBuffer().get(slot);
+ }
+
+ /** Puts a double at the specified slot (8-byte offset). */
+ public void setDoubleAt(int slot, double v) {
+ doubleBuffer().put(slot, v);
+ }
+
+ /** Retrieves the float at the specified slot (4-byte offset). */
+ public float getFloatAt(int slot) {
+ return floatBuffer().get(slot);
+ }
+
+ /** Puts a float at the specified slot (4-byte offset). */
+ public void setFloatAt(int slot, float v) {
+ floatBuffer().put(slot, v);
+ }
+
+ /** Retrieves the int at the specified slot (4-byte offset). */
+ public int getIntAt(int slot) {
+ return intBuffer().get(slot);
+ }
+
+ /** Puts a int at the specified slot (4-byte offset). */
+ public void setIntAt(int slot, int v) {
+ intBuffer().put(slot, v);
+ }
+
+ /** Retrieves the long at the specified slot (8-byte offset). */
+ public long getLongAt(int slot) {
+ return longBuffer().get(slot);
+ }
+
+ /** Puts a long at the specified slot (8-byte offset). */
+ public void setLongAt(int slot, long v) {
+ longBuffer().put(slot, v);
+ }
+
+ /** Retrieves the short at the specified slot (2-byte offset). */
+ public short getShortAt(int slot) {
+ return shortBuffer().get(slot);
+ }
+
+ /** Puts a short at the specified slot (2-byte offset). */
+ public void setShortAt(int slot, short v) {
+ shortBuffer().put(slot, v);
+ }
+
+ //----------------------------------------------------------------------
+ // Internals only below this point
+ //
+
+ private CharBuffer charBuffer() {
+ if (cb == null) {
+ cb = bb.asCharBuffer();
+ }
+ return cb;
+ }
+
+ private DoubleBuffer doubleBuffer() {
+ if (db == null) {
+ db = bb.asDoubleBuffer();
+ }
+ return db;
+ }
+
+ private FloatBuffer floatBuffer() {
+ if (fb == null) {
+ fb = bb.asFloatBuffer();
+ }
+ return fb;
+ }
+
+ private IntBuffer intBuffer() {
+ if (ib == null) {
+ ib = bb.asIntBuffer();
+ }
+ return ib;
+ }
+
+ private LongBuffer longBuffer() {
+ if (lb == null) {
+ lb = bb.asLongBuffer();
+ }
+ return lb;
+ }
+
+ private ShortBuffer shortBuffer() {
+ if (sb == null) {
+ sb = bb.asShortBuffer();
+ }
+ return sb;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 07:45:11 +0000