--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/demo/jvmti/hprof/hprof_blocks.h	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2004 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:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions 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 nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef HPROF_BLOCKS_H
+#define HPROF_BLOCKS_H
+
+typedef struct BlockHeader {
+    struct BlockHeader *next;
+    int                 bytes_left;
+    int                 next_pos;
+} BlockHeader;
+
+typedef struct Blocks {
+    BlockHeader *first_block;   /* Pointer to first BlockHeader */
+    BlockHeader *current_block; /* Pointer to current BlockHeader */
+    int          alignment;     /* Data alignment, 1, 2, 4, 8, 16 */
+    int          elem_size;     /* Size in bytes, ==1 means variable sizes */
+    int          population;    /* Number of elements to allow for per Block */
+} Blocks;
+
+Blocks * blocks_init(int alignment, int elem_size, int population);
+void *   blocks_alloc(Blocks *blocks, int nbytes);
+void     blocks_term(Blocks *blocks);
+
+#endif