1 /* src/vm/suck.h - functions to read LE ordered types from a buffer
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Christian Thalinger
31 $Id: suck.h 4921 2006-05-15 14:24:36Z twisti $
43 #include "vm/hashtable.h"
44 #include "vm/loader.h"
47 /* list_classpath_entry *******************************************************/
54 typedef struct list_classpath_entry list_classpath_entry;
56 struct list_classpath_entry {
57 #if defined(ENABLE_THREADS)
58 java_objectheader header; /* monitor locking on zip/jar files */
63 #if defined(ENABLE_ZLIB)
70 /* macros to read LE and BE types from a buffer ********************************
72 BE macros are for Java class file loading.
73 LE macros are for ZIP file loading.
75 *******************************************************************************/
77 /* LE macros (for ZIP files ) *************************************************/
79 #if defined(__I386__) || defined(__X86_64__)
81 /* we can optimize the LE access on little endian machines without alignment */
83 #define SUCK_LE_U1(p) *((u1 *) (p))
84 #define SUCK_LE_U2(p) *((u2 *) (p))
85 #define SUCK_LE_U4(p) *((u4 *) (p))
88 #define SUCK_LE_U8(p) *((u8 *) (p))
91 #else /* defined(__I386__) || defined(__X86_64__) */
93 #define SUCK_LE_U1(p) \
96 #define SUCK_LE_U2(p) \
97 ((((u2) (p)[1]) << 8) + \
100 #define SUCK_LE_U4(p) \
101 ((((u4) (p)[3]) << 24) + \
102 (((u4) (p)[2]) << 16) + \
103 (((u4) (p)[1]) << 8) + \
106 #if U8_AVAILABLE == 1
107 #define SUCK_LE_U8(p) \
108 ((((u8) (p)[7]) << 56) + \
109 (((u8) (p)[6]) << 48) + \
110 (((u8) (p)[5]) << 40) + \
111 (((u8) (p)[4]) << 32) + \
112 (((u8) (p)[3]) << 24) + \
113 (((u8) (p)[2]) << 16) + \
114 (((u8) (p)[1]) << 8) + \
118 #endif /* defined(__I386__) || defined(__X86_64__) */
121 /* BE macros (for Java class files ) ******************************************/
123 #define SUCK_BE_U1(p) \
126 #define SUCK_BE_U2(p) \
127 ((((u2) (p)[0]) << 8) + \
130 #define SUCK_BE_U4(p) \
131 ((((u4) (p)[0]) << 24) + \
132 (((u4) (p)[1]) << 16) + \
133 (((u4) (p)[2]) << 8) + \
136 #if U8_AVAILABLE == 1
137 #define SUCK_BE_U8(p) \
138 ((((u8) (p)[0]) << 56) + \
139 (((u8) (p)[1]) << 48) + \
140 (((u8) (p)[2]) << 40) + \
141 (((u8) (p)[3]) << 32) + \
142 (((u8) (p)[4]) << 24) + \
143 (((u8) (p)[5]) << 16) + \
144 (((u8) (p)[6]) << 8) + \
149 /* signed suck defines ********************************************************/
151 #define suck_s1(a) (s1) suck_u1((a))
152 #define suck_s2(a) (s2) suck_u2((a))
153 #define suck_s4(a) (s4) suck_u4((a))
154 #define suck_s8(a) (s8) suck_u8((a))
157 /* export variables ***********************************************************/
159 extern char *bootclasspath;
160 extern char *classpath;
162 extern list *list_classpath_entries;
165 /* function prototypes ********************************************************/
167 bool suck_init(void);
169 void suck_add(char *classpath);
170 void suck_add_from_property(char *key);
172 bool suck_check_classbuffer_size(classbuffer *cb, s4 len);
174 u1 suck_u1(classbuffer *cb);
175 u2 suck_u2(classbuffer *cb);
176 u4 suck_u4(classbuffer *cb);
177 u8 suck_u8(classbuffer *cb);
179 float suck_float(classbuffer *cb);
180 double suck_double(classbuffer *cb);
182 void suck_nbytes(u1 *buffer, classbuffer *cb, s4 len);
183 void suck_skip_nbytes(classbuffer *cb, s4 len);
185 classbuffer *suck_start(classinfo *c);
187 void suck_stop(classbuffer *cb);
192 * These are local overrides for various environment variables in Emacs.
193 * Please do not remove this and leave it at the end of the file, where
194 * Emacs will automagically detect them.
195 * ---------------------------------------------------------------------
198 * indent-tabs-mode: t