jdk/src/jdk.runtime/share/native/common-unpack/utils.h
changeset 25859 3317bb8137f4
parent 10907 ea32ea5b72d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.runtime/share/native/common-unpack/utils.h	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2001, 2011, Oracle and/or its affiliates. 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+//Definitions of our util functions
+
+void* must_malloc(size_t size);
+#ifndef USE_MTRACE
+#define mtrace(c, ptr, size)
+#else
+void mtrace(char c, void* ptr, size_t size);
+#endif
+
+// overflow management
+#define OVERFLOW ((uint)-1)
+#define PSIZE_MAX (OVERFLOW/2)  /* normal size limit */
+
+inline size_t scale_size(size_t size, size_t scale) {
+  return (size > PSIZE_MAX / scale) ? OVERFLOW : size * scale;
+}
+
+inline size_t add_size(size_t size1, size_t size2) {
+  return ((size1 | size2 | (size1 + size2)) > PSIZE_MAX)
+    ? OVERFLOW
+    : size1 + size2;
+}
+
+inline size_t add_size(size_t size1, size_t size2, int size3) {
+  return add_size(add_size(size1, size2), size3);
+}
+
+// These may be expensive, because they have to go via Java TSD,
+// if the optional u argument is missing.
+struct unpacker;
+extern void unpack_abort(const char* msg, unpacker* u = null);
+extern bool unpack_aborting(unpacker* u = null);
+
+#ifndef PRODUCT
+inline bool endsWith(const char* str, const char* suf) {
+  size_t len1 = strlen(str);
+  size_t len2 = strlen(suf);
+  return (len1 > len2 && 0 == strcmp(str + (len1-len2), suf));
+}
+#endif
+
+void mkdirs(int oklen, char* path);