1 /* 2 * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "memory/resourceArea.hpp" 27 #include "runtime/thread.inline.hpp" 28 #include "utilities/array.hpp" 29 30 31 template <MEMFLAGS F> void CHeapArray<F>::expand(size_t esize, int i, int& size) { 32 // determine new size 33 if (size == 0) size = 4; // prevent endless loop 34 while (i >= size) size *= 2; 35 // allocate and initialize new data section 36 void* data = NEW_C_HEAP_ARRAY(char*, esize * size, F); 37 memcpy(data, _data, esize * length()); 38 FREE_C_HEAP_ARRAY(char*, _data); 39 _data = data; 40 } 41 42 template <MEMFLAGS F> void CHeapArray<F>::remove_at(size_t esize, int i) { 43 assert(0 <= i && i < length(), "index out of bounds"); 44 _length--; 45 void* dst = (char*)_data + i*esize; 46 void* src = (char*)dst + esize; 47 size_t cnt = (length() - i)*esize; 48 memmove(dst, src, cnt); 49 }