--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/demo/share/jvmti/hprof/hprof_string.c	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2003, 2011, Oracle and/or its affiliates. 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 Oracle 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.
+ */
+
+/*
+ * This source code is provided to illustrate the usage of a given feature
+ * or technique and has been deliberately simplified. Additional steps
+ * required for a production-quality application, such as security checks,
+ * input validation and proper error handling, might not be present in
+ * this sample code.
+ */
+
+
+/* Table of byte arrays (e.g. char* string + NULL byte) */
+
+/*
+ * Strings are unique by their own contents, since the string itself
+ *   is the Key, and the hprof_table.c guarantees that keys don't move,
+ *   this works out perfect. Any key in this table can be used as
+ *   an char*.
+ *
+ * This does mean that this table has dynamically sized keys.
+ *
+ * Care needs to be taken to make sure the NULL byte is included, not for
+ *   the sake of hprof_table.c, but so that the key can be used as a char*.
+ *
+ */
+
+#include "hprof.h"
+
+void
+string_init(void)
+{
+    HPROF_ASSERT(gdata->string_table==NULL);
+    gdata->string_table = table_initialize("Strings", 4096, 4096, 1024, 0);
+}
+
+StringIndex
+string_find_or_create(const char *str)
+{
+    return table_find_or_create_entry(gdata->string_table,
+                (void*)str, (int)strlen(str)+1, NULL, NULL);
+}
+
+static void
+list_item(TableIndex index, void *str, int len, void *info_ptr, void *arg)
+{
+    debug_message( "0x%08x: String \"%s\"\n", index, (const char *)str);
+}
+
+void
+string_list(void)
+{
+    debug_message(
+        "-------------------- String Table ------------------------\n");
+    table_walk_items(gdata->string_table, &list_item, NULL);
+    debug_message(
+        "----------------------------------------------------------\n");
+}
+
+void
+string_cleanup(void)
+{
+    table_cleanup(gdata->string_table, NULL, NULL);
+    gdata->string_table = NULL;
+}
+
+char *
+string_get(StringIndex index)
+{
+    void *key;
+    int   key_len;
+
+    table_get_key(gdata->string_table, index, &key, &key_len);
+    HPROF_ASSERT(key_len>0);
+    return (char*)key;
+}
+
+int
+string_get_len(StringIndex index)
+{
+    void *key;
+    int   key_len;
+
+    table_get_key(gdata->string_table, index, &key, &key_len);
+    HPROF_ASSERT(key_len>0);
+    return key_len-1;
+}