1 /*

     2  * Copyright (c) 2001, 2011, 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 //Definitions of our util functions

    27 

    28 void* must_malloc(size_t size);

    29 #ifndef USE_MTRACE

    30 #define mtrace(c, ptr, size)

    31 #else

    32 void mtrace(char c, void* ptr, size_t size);

    33 #endif

    34 

    35 // overflow management

    36 #define OVERFLOW ((uint)-1)

    37 #define PSIZE_MAX (OVERFLOW/2)  /* normal size limit */

    38 

    39 inline size_t scale_size(size_t size, size_t scale) {

    40   return (size > PSIZE_MAX / scale) ? OVERFLOW : size * scale;

    41 }

    42 

    43 inline size_t add_size(size_t size1, size_t size2) {

    44   return ((size1 | size2 | (size1 + size2)) > PSIZE_MAX)

    45     ? OVERFLOW

    46     : size1 + size2;

    47 }

    48 

    49 inline size_t add_size(size_t size1, size_t size2, int size3) {

    50   return add_size(add_size(size1, size2), size3);

    51 }

    52 

    53 // These may be expensive, because they have to go via Java TSD,

    54 // if the optional u argument is missing.

    55 struct unpacker;

    56 extern void unpack_abort(const char* msg, unpacker* u = null);

    57 extern bool unpack_aborting(unpacker* u = null);

    58 

    59 #ifndef PRODUCT

    60 inline bool endsWith(const char* str, const char* suf) {

    61   size_t len1 = strlen(str);

    62   size_t len2 = strlen(suf);

    63   return (len1 > len2 && 0 == strcmp(str + (len1-len2), suf));

    64 }

    65 #endif

    66 

    67 void mkdirs(int oklen, char* path);