/* src/vm/loader.h - class loader header
- Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
- R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
- C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
- Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- Contact: cacao@complang.tuwien.ac.at
-
- Authors: Reinhard Grafl
-
- $Id: loader.h 2303 2005-04-14 12:04:42Z edwin $
*/
#ifndef _LOADER_H
#define _LOADER_H
-#include <stdio.h>
-
-
/* forward typedefs ***********************************************************/
typedef struct classbuffer classbuffer;
-typedef struct classpath_info classpath_info;
-
-#include "vm/global.h"
-#include "vm/utf8.h"
-#include "vm/references.h"
-#include "vm/descriptor.h"
-#include "vm/method.h"
-#if defined(USE_ZLIB)
-# include "vm/unzip.h"
-#endif
+#include "config.h"
+#include <stdio.h>
-/* signed suck defines ********************************************************/
+#include "vm/types.h"
-#define suck_s8(a) (s8) suck_u8((a))
-#define suck_s2(a) (s2) suck_u2((a))
-#define suck_s4(a) (s4) suck_u4((a))
-#define suck_s1(a) (s1) suck_u1((a))
+#include "vm/descriptor.h"
+#include "vm/class.h"
+#include "vm/global.h"
+#include "vm/method.h"
+#include "vm/references.h"
+#include "vm/utf8.h"
/* constant pool entries *******************************************************
kind structure generated?
----------------------------------------------------------------------
- CONSTANT_Class classinfo no XXX this will change
+ CONSTANT_Class constant_classref yes
CONSTANT_Fieldref constant_FMIref yes
CONSTANT_Methodref constant_FMIref yes
CONSTANT_InterfaceMethodref constant_FMIref yes
/* classbuffer ****************************************************************/
struct classbuffer {
- classinfo *class; /* pointer to classinfo structure */
- u1 *data; /* pointer to byte code */
- s4 size; /* size of the byte code */
- u1 *pos; /* current read position */
+ classinfo *clazz; /* pointer to classinfo structure */
+ uint8_t *data; /* pointer to byte code */
+ int32_t size; /* size of the byte code */
+ uint8_t *pos; /* current read position */
+ char *path; /* path to file (for debugging) */
};
-/* classpath_info *************************************************************/
+/* hashtable_classloader_entry *************************************************
-#define CLASSPATH_PATH 0
-#define CLASSPATH_ARCHIVE 1
+ ATTENTION: The pointer to the classloader object needs to be the
+ first field of the entry, so that it can be used as an indirection
+ cell. This is checked by gc_init() during startup.
-struct classpath_info {
-#if defined(USE_THREADS)
- /* Required for monitor locking on zip/jar files. */
- java_objectheader header;
-#endif
- s4 type;
- char *path;
- s4 pathlen;
-#if defined(USE_ZLIB)
- unzFile uf;
-#endif
- classpath_info *next;
+*******************************************************************************/
+
+typedef struct hashtable_classloader_entry hashtable_classloader_entry;
+
+struct hashtable_classloader_entry {
+ java_object_t *object;
+ hashtable_classloader_entry *hashlink;
};
-/* export variables ***********************************************************/
+/* classloader *****************************************************************
-#if defined(USE_THREADS)
-extern int blockInts;
-#endif
+ [!ENABLE_HANDLES]: The classloader is a Java Object which cannot move.
+ [ENABLE_HANDLES] : The classloader entry itself is a static handle for a
+ given classloader (use loader_hashtable_classloader_foo).
+
+*******************************************************************************/
-extern classpath_info *classpath_entries;
+#if defined(ENABLE_HANDLES)
+typedef hashtable_classloader_entry classloader_t;
+#else
+typedef java_object_t classloader_t;
+#endif
/* function prototypes ********************************************************/
-/* initialize loader, load important systemclasses */
-bool loader_init(u1 *stackbottom);
+void loader_preinit(void);
+void loader_init(void);
-void suck_init(char *cpath);
-void create_all_classes(void);
-void suck_stop(classbuffer *cb);
+/* classloader management functions */
+classloader_t *loader_hashtable_classloader_add(java_handle_t *cl);
+classloader_t *loader_hashtable_classloader_find(java_handle_t *cl);
-inline bool check_classbuffer_size(classbuffer *cb, s4 len);
+void loader_load_all_classes(void);
-inline u1 suck_u1(classbuffer *cb);
-inline u2 suck_u2(classbuffer *cb);
-inline u4 suck_u4(classbuffer *cb);
+bool loader_skip_attribute_body(classbuffer *cb);
+
+#if defined(ENABLE_JAVASE)
+bool loader_load_attribute_signature(classbuffer *cb, utf **signature);
+#endif
/* free resources */
void loader_close(void);
/* class loading functions */
-bool load_class_from_sysloader(utf *name, classinfo **result);
-bool load_class_from_classloader(utf *name, java_objectheader *cl, classinfo **result);
-bool load_class_bootstrap(utf *name,classinfo **result);
-/* (don't use the following directly:) */
-classinfo *load_class_from_classbuffer(classbuffer *cb);
-bool load_newly_created_array(classinfo *c,java_objectheader *loader);
-
-/* search class for a field */
-fieldinfo *class_findfield(classinfo *c, utf *name, utf *desc);
-fieldinfo *class_resolvefield(classinfo *c, utf *name, utf *desc, classinfo *referer, bool except);
-
-/* search for a method with a specified name and descriptor */
-methodinfo *class_findmethod(classinfo *c, utf *name, utf *desc);
-methodinfo *class_fetchmethod(classinfo *c, utf *name, utf *desc);
-methodinfo *class_resolvemethod(classinfo *c, utf *name, utf *dest);
-methodinfo *class_resolveclassmethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool except);
-methodinfo *class_resolveinterfacemethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool except);
+classinfo *load_class_from_sysloader(utf *name);
+classinfo *load_class_from_classloader(utf *name, classloader_t *cl);
+classinfo *load_class_bootstrap(utf *name);
-/* search for a method with specified name and arguments (returntype ignored) */
-methodinfo *class_findmethod_approx(classinfo *c, utf *name, utf *desc);
-methodinfo *class_resolvemethod_approx(classinfo *c, utf *name, utf *dest);
-
-bool class_issubclass(classinfo *sub, classinfo *super);
-
-/* debug purposes */
-void class_showmethods(classinfo *c);
-void class_showconstantpool(classinfo *c);
-
-/* return the primitive class inidicated by the given signature character */
-classinfo *class_primitive_from_sig(char sig);
-
-
-/* debug helpers */
-void fprintflags(FILE *fp, u2 f);
-void printflags(u2 f);
-
-/******************************************************************************/
-/* SYNCHRONIZATION */
-/******************************************************************************/
-
-#if defined(USE_THREADS) && defined(NATIVE_THREADS)
-# define LOADER_LOCK() tables_lock()
-# define LOADER_UNLOCK() tables_unlock()
-#else
-# define LOADER_LOCK()
-# define LOADER_UNLOCK()
-#endif
+/* (don't use the following directly) */
+classinfo *load_class_from_classbuffer(classbuffer *cb);
+classinfo *load_newly_created_array(classinfo *c, classloader_t *loader);
#endif /* _LOADER_H */
* c-basic-offset: 4
* tab-width: 4
* End:
+ * vim:noexpandtab:sw=4:ts=4:
*/
projects / cacao.git / blobdiff