diff src/share/vm/utilities/array.cpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/utilities/array.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2000-2004 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_array.cpp.incl"
+
+
+#ifdef ASSERT
+void ResourceArray::init_nesting() {
+  _nesting = Thread::current()->resource_area()->nesting();
+}
+#endif
+
+
+void ResourceArray::sort(size_t esize, ftype f) {
+  if (!is_empty()) qsort(_data, length(), esize, f);
+}
+void CHeapArray::sort(size_t esize, ftype f) {
+  if (!is_empty()) qsort(_data, length(), esize, f);
+}
+
+
+void ResourceArray::expand(size_t esize, int i, int& size) {
+  // make sure we are expanding within the original resource mark
+  assert(
+    _nesting == Thread::current()->resource_area()->nesting(),
+    "allocating outside original resource mark"
+  );
+  // determine new size
+  if (size == 0) size = 4; // prevent endless loop
+  while (i >= size) size *= 2;
+  // allocate and initialize new data section
+  void* data = resource_allocate_bytes(esize * size);
+  memcpy(data, _data, esize * length());
+  _data = data;
+}
+
+
+void CHeapArray::expand(size_t esize, int i, int& size) {
+  // determine new size
+  if (size == 0) size = 4; // prevent endless loop
+  while (i >= size) size *= 2;
+  // allocate and initialize new data section
+  void* data = NEW_C_HEAP_ARRAY(char*, esize * size);
+  memcpy(data, _data, esize * length());
+  FREE_C_HEAP_ARRAY(char*, _data);
+  _data = data;
+}
+
+
+void ResourceArray::remove_at(size_t esize, int i) {
+  assert(0 <= i && i < length(), "index out of bounds");
+  _length--;
+  void* dst = (char*)_data + i*esize;
+  void* src = (char*)dst + esize;
+  size_t cnt = (length() - i)*esize;
+  memmove(dst, src, cnt);
+}
+
+void CHeapArray::remove_at(size_t esize, int i) {
+  assert(0 <= i && i < length(), "index out of bounds");
+  _length--;
+  void* dst = (char*)_data + i*esize;
+  void* src = (char*)dst + esize;
+  size_t cnt = (length() - i)*esize;
+  memmove(dst, src, cnt);
+}