src/native/native.c

   1 /* native.c - table of native functions
   2
   3    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
   4    R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
   5    M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
   6    P. Tomsich, J. Wenninger
   7
   8    This file is part of CACAO.
   9
  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.
  14
  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.
  19
  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., 59 Temple Place - Suite 330, Boston, MA
  23    02111-1307, USA.
  24
  25    Contact: cacao@complang.tuwien.ac.at
  26
  27    Authors: Reinhard Grafl
  28             Roman Obermaisser
  29             Andreas Krall
  30
  31    The .hh files created with the header file generator are all
  32    included here as are the C functions implementing these methods.
  33
  34    $Id: native.c 682 2003-12-01 15:33:30Z jowenn $
  35
  36 */
  37
  38 #include <stdlib.h>
  39 #include <unistd.h>
  40 #include <time.h>
  41 #include <math.h>
  42 #include <string.h>
  43 #include <assert.h>
  44 #include <sys/time.h>
  45 #include <utime.h>
  46
  47 #include "config.h"
  48 #include "global.h"
  49 #include "jni.h"
  50 #include "native.h"
  51 #include "nativetypes.hh"
  52 #include "builtin.h"
  53 #include "asmpart.h"
  54 #include "tables.h"
  55 #include "loader.h"
  56 #include "toolbox/loging.h"
  57 #include "threads/thread.h"
  58 #include "threads/threadio.h"
  59 #include "threads/locks.h"
  60
  61 /* Include files for IO functions */
  62
  63 #include <fcntl.h>
  64 #include <dirent.h>
  65 #include <sys/types.h>
  66 #ifdef _OSF_SOURCE
  67 #include <sys/mode.h>
  68 #endif
  69 #include <sys/stat.h>
  70
  71 #include "threads/threadio.h"
  72
  73 /* searchpath for classfiles */
  74 char *classpath;
  75
  76 /* for java-string to char conversion */
  77 #define MAXSTRINGSIZE 1000
  78
  79 /******************** systemclasses required for native methods ***************/
  80
  81 classinfo *class_java_lang_Class;
  82 classinfo *class_java_lang_VMClass;
  83 methodinfo *method_vmclass_init;
  84 /* static classinfo *class_java_lang_Cloneable=0; */ /* now in global.h */
  85 classinfo *class_java_lang_CloneNotSupportedException;
  86 classinfo *class_java_lang_System;
  87 classinfo *class_java_lang_ClassLoader;
  88 classinfo *class_java_lang_ClassNotFoundException;
  89 classinfo *class_java_lang_LinkageError;
  90 classinfo *class_java_lang_InstantiationException;
  91 classinfo *class_java_lang_NoSuchMethodError;
  92 classinfo *class_java_lang_NoSuchFieldError;
  93 classinfo *class_java_lang_ClassFormatError;
  94 classinfo *class_java_lang_IllegalArgumentException;
  95 classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
  96 classinfo *class_java_lang_NoSuchFieldException;
  97 classinfo *class_java_io_SyncFailedException;
  98 classinfo *class_java_io_IOException;
  99 classinfo *class_java_io_FileNotFoundException;
 100 classinfo *class_java_io_UnixFileSystem;
 101 classinfo *class_java_security_PrivilegedActionException;
 102 classinfo *class_java_net_UnknownHostException;
 103 classinfo *class_java_net_SocketException;
 104 classinfo *class_java_lang_NoSuchMethodException;
 105 classinfo *class_java_lang_Double;
 106 classinfo *class_java_lang_Float;
 107 classinfo *class_java_lang_Long;
 108 classinfo *class_java_lang_Byte;
 109 classinfo *class_java_lang_Short;
 110 classinfo *class_java_lang_Boolean;
 111 classinfo *class_java_lang_Void;
 112 classinfo *class_java_lang_Character;
 113 classinfo *class_java_lang_Integer;
 114
 115 /* the system classloader object */
 116 struct java_lang_ClassLoader *SystemClassLoader = NULL;
 117
 118 /* for raising exceptions from native methods */
 119 java_objectheader* exceptionptr = NULL;
 120
 121 /************* use classinfo structure as java.lang.Class object **************/
 122
 123 void use_class_as_object(classinfo *c)
 124 {
 125         /*log_text("use_class_as_object");*/
 126         if (!class_java_lang_Class)
 127                 class_java_lang_Class =
 128                         class_new ( utf_new_char ("java/lang/Class") );
 129         vftbl *vt = class_java_lang_Class->vftbl;
 130         vftbl *newtbl;
 131         if (!c->classvftbl) {
 132                 c->classvftbl = true;
 133
 134 /*                copy_vftbl(&newtbl, vt);
 135                 newtbl->class = c->header.vftbl->class;
 136                 newtbl->baseval = c->header.vftbl->baseval;
 137                 newtbl->diffval = c->header.vftbl->diffval;
 138                 c->header.vftbl = newtbl;*/
 139
 140                 c->header.vftbl=class_java_lang_Class->vftbl;
 141
 142                 if (!class_java_lang_VMClass) {
 143                         class_java_lang_VMClass =
 144                                         loader_load ( utf_new_char("java/lang/VMClass"));
 145                         method_vmclass_init =
 146                                         class_findmethod(class_java_lang_VMClass,utf_new_char("<init>"),
 147                                                 utf_new_char("(Lgnu/classpath/RawData;)V"));
 148                         if (method_vmclass_init==0) {
 149                                 class_showmethods(class_java_lang_VMClass);
 150                                 panic("Needed class initializer for VMClass could not be found");
 151                         }
 152                 }
 153                 {
 154                         java_objectheader *vmo = builtin_new (class_java_lang_VMClass);
 155
 156                         if (!vmo) panic("Error while creating instance of java/lang/VMClass");
 157                         asm_calljavamethod (method_vmclass_init, vmo, c, NULL, NULL);
 158                         c->vmClass=(java_lang_VMClass*)vmo;
 159                         /*log_text("VMCLASS has been attached");*/
 160                 }
 161         }
 162
 163 }
 164
 165
 166 /*************************** include native methods ***************************/
 167
 168 #ifdef USE_GTK
 169 #include "nat/GdkGraphics.c"
 170 #include "nat/GtkComponentPeer.c"
 171 #include "nat/GdkPixbufDecoder.c"
 172 #include "nat/GtkScrollPanePeer.c"
 173 #include "nat/GtkFileDialogPeer.c"
 174 #include "nat/GtkLabelPeer.c"
 175 #endif
 176
 177
 178 /************************** tables for methods ********************************/
 179
 180 #undef JOWENN_DEBUG
 181 #undef JOWENN_DEBUG1
 182
 183 /* table for locating native methods */
 184 static struct nativeref {
 185         char *classname;
 186         char *methodname;
 187         char *descriptor;
 188         bool isstatic;
 189         functionptr func;
 190 } nativetable [] = {
 191
 192 #include "nativetable.hh"
 193
 194 };
 195
 196
 197 #define NATIVETABLESIZE  (sizeof(nativetable)/sizeof(struct nativeref))
 198
 199 /* table for fast string comparison */
 200 static struct nativecompref {
 201         utf *classname;
 202         utf *methodname;
 203         utf *descriptor;
 204         bool isstatic;
 205         functionptr func;
 206 } nativecomptable [NATIVETABLESIZE];
 207
 208 /* string comparsion table initialized */
 209 static bool nativecompdone = false;
 210
 211
 212 /******************************************************************************/
 213 /******************************************************************************/
 214 #include "natcalls.h"
 215
 216 /* string call comparison table initialized */
 217
 218 /******************************************************************************/
 219 /******************************************************************************/
 220
 221 /*--------------- native method calls & classes used -------------------------*/
 222
 223
 224
 225
 226 /*********************** function: native_loadclasses **************************
 227
 228         load classes required for native methods
 229
 230 *******************************************************************************/
 231
 232 void native_loadclasses()
 233 {
 234         static int classesLoaded=0; /*temporary hack JoWenn*/
 235         if (classesLoaded) return;
 236         classesLoaded=1;
 237 /*      log_text("loadclasses entered");*/
 238
 239
 240         /*class_java_lang_System =*/
 241                 (void)class_new ( utf_new_char ("java/lang/VMClass") );/*JoWenn*/
 242                 (void)class_new ( utf_new_char ("java/lang/Class") );/*JoWenn*/
 243         /* class_new adds the class to the list of classes to be loaded */
 244         if (!class_java_lang_Cloneable)
 245                 class_java_lang_Cloneable =
 246                         class_new ( utf_new_char ("java/lang/Cloneable") );
 247 /*      log_text("loadclasses: class_java_lang_Cloneable has been initialized");*/
 248         class_java_lang_CloneNotSupportedException =
 249                 class_new ( utf_new_char ("java/lang/CloneNotSupportedException") );
 250         if (!class_java_lang_Class)
 251                 class_java_lang_Class =
 252                         class_new ( utf_new_char ("java/lang/Class") );
 253         class_java_io_IOException =
 254                 class_new(utf_new_char("java/io/IOException"));
 255         class_java_io_FileNotFoundException =
 256                 class_new(utf_new_char("java/io/FileNotFoundException"));
 257         class_java_lang_ClassNotFoundException =
 258                 class_new(utf_new_char("java/lang/ClassNotFoundException"));
 259         class_java_lang_LinkageError =
 260                 class_new(utf_new_char("java/lang/LinkageError"));
 261         class_java_lang_InstantiationException =
 262                 class_new(utf_new_char("java/lang/InstantiationException"));
 263         class_java_lang_NoSuchMethodError =
 264                 class_new(utf_new_char("java/lang/NoSuchMethodError"));
 265         class_java_lang_NoSuchFieldError =
 266                 class_new(utf_new_char("java/lang/NoSuchFieldError"));
 267         class_java_lang_ClassFormatError =
 268                 class_new(utf_new_char("java/lang/ClassFormatError"));
 269         class_java_io_SyncFailedException =
 270                 class_new ( utf_new_char ("java/io/SyncFailedException") );
 271
 272 /*      log_text("native_loadclasses: class_new(\"java/lang/ClassLoader\")");           */
 273         class_java_lang_ClassLoader =
 274                 class_new ( utf_new_char ("java/lang/ClassLoader") );
 275 /*      log_text("native_loadclasses: class_new(\"java/security/PrivilegedActionException\")");         */
 276         class_java_security_PrivilegedActionException =
 277                 class_new(utf_new_char("java/security/PrivilegedActionException"));
 278
 279         class_java_net_UnknownHostException =
 280                 loader_load(utf_new_char("java/net/UnknownHostException"));
 281         class_java_net_SocketException =
 282                 loader_load(utf_new_char("java/net/SocketException"));
 283
 284         class_java_lang_IllegalArgumentException =
 285                 class_new(utf_new_char("java/lang/IllegalArgumentException"));
 286         class_java_lang_ArrayIndexOutOfBoundsException =
 287                 class_new(utf_new_char("java/lang/ArrayIndexOutOfBoundsException"));
 288         class_java_lang_NoSuchFieldException =
 289                 class_new(utf_new_char("java/lang/NoSuchFieldException"));
 290         class_java_lang_NoSuchMethodException =
 291                 class_new(utf_new_char("java/lang/NoSuchMethodException"));
 292
 293         /* load classes for wrapping primitive types */
 294         class_java_lang_Double =
 295                 class_new( utf_new_char ("java/lang/Double") );
 296         class_init(class_java_lang_Double);
 297
 298         class_java_lang_Float =
 299                 class_new(utf_new_char("java/lang/Float"));
 300         class_java_lang_Character =
 301                 class_new(utf_new_char("java/lang/Character"));
 302         class_java_lang_Integer =
 303                 class_new(utf_new_char("java/lang/Integer"));
 304         class_java_lang_Long =
 305                 class_new(utf_new_char("java/lang/Long"));
 306         class_java_lang_Byte =
 307                 class_new(utf_new_char("java/lang/Byte"));
 308         class_java_lang_Short =
 309                 class_new(utf_new_char("java/lang/Short"));
 310         class_java_lang_Boolean =
 311                 class_new(utf_new_char("java/lang/Boolean"));
 312         class_java_lang_Void =
 313                 class_new(utf_new_char("java/lang/Void"));
 314
 315         classesLoaded=1;
 316         log_text("native_loadclasses finished");
 317 }
 318
 319
 320 /*************** adds a class to the vector of loaded classes ****************/
 321
 322 void systemclassloader_addclass(classinfo *c)
 323 {
 324         methodinfo *m;
 325
 326         /* find method addClass of java.lang.ClassLoader */
 327         m = class_resolvemethod(
 328                                                         class_java_lang_ClassLoader,
 329                                                         utf_new_char("addClass"),
 330                                                         utf_new_char("(Ljava/lang/Class;)")
 331                                                         );
 332
 333         if (!m) panic("warning: cannot initialize classloader");
 334
 335         /* prepare class to be passed as argument */
 336         use_class_as_object (c);
 337
 338         /* call 'addClass' */
 339         asm_calljavamethod(m,
 340                                            (java_objectheader*) SystemClassLoader,
 341                                            (java_objectheader*) c,
 342                                            NULL,
 343                                            NULL
 344                                            );
 345 }
 346
 347 /*************** adds a library to the vector of loaded libraries *************/
 348
 349 void systemclassloader_addlibrary(java_objectheader *o)
 350 {
 351         log_text("systemclassloader_addlibrary");
 352 }
 353
 354 /*****************************************************************************
 355
 356         create systemclassloader object and initialize instance fields
 357
 358 ******************************************************************************/
 359
 360 void init_systemclassloader()
 361 {
 362   if (!SystemClassLoader) {
 363         native_loadclasses();
 364         log_text("Initializing new system class loader");
 365         /* create object and call initializer */
 366         SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
 367         heap_addreference((void**) &SystemClassLoader);
 368
 369         /* systemclassloader has no parent */
 370         SystemClassLoader->parent      = NULL;
 371         SystemClassLoader->initialized = true;
 372   }
 373   log_text("leaving system class loader");
 374 }
 375
 376
 377 /********************* add loaded library name  *******************************/
 378
 379 void systemclassloader_addlibname(java_objectheader *o)
 380 {
 381         methodinfo *m;
 382         jfieldID id;
 383
 384         m = class_resolvemethod(loader_load(utf_new_char ("java/util/Vector")),
 385                                                         utf_new_char("addElement"),
 386                                                         utf_new_char("(Ljava/lang/Object;)V")
 387                                                         );
 388
 389         if (!m) panic("cannot initialize classloader");
 390
 391         id = envTable.GetStaticFieldID(&env,class_java_lang_ClassLoader,"loadedLibraryNames","Ljava/util/Vector;");
 392         if (!id) panic("can not access ClassLoader");
 393
 394         asm_calljavamethod(m,
 395                                            GetStaticObjectField(&env,class_java_lang_ClassLoader,id),
 396                                            o,
 397                                            NULL,
 398                                            NULL
 399                                            );
 400 }
 401
 402
 403 /********************* function: native_setclasspath **************************/
 404
 405 void native_setclasspath (char *path)
 406 {
 407         /* set searchpath for classfiles */
 408         classpath = path;
 409 }
 410
 411
 412 /***************** function: throw_classnotfoundexception *********************/
 413
 414 void throw_classnotfoundexception()
 415 {
 416     if (!class_java_lang_ClassNotFoundException) {
 417         panic("java.lang.ClassNotFoundException not found. Maybe wrong classpath?");
 418     }
 419
 420         /* throws a ClassNotFoundException */
 421         exceptionptr = native_new_and_init(class_java_lang_ClassNotFoundException);
 422 }
 423
 424
 425 void throw_classnotfoundexception2(utf* classname)
 426 {
 427         if (!class_java_lang_ClassNotFoundException) {
 428                 panic("java.lang.ClassNotFoundException not found. Maybe wrong classpath?");
 429         }
 430
 431         /* throws a ClassNotFoundException with message */
 432         exceptionptr = native_new_and_init_string(class_java_lang_ClassNotFoundException,
 433                                                                                           javastring_new(classname));
 434 }
 435
 436 void throw_linkageerror2(utf* classname)
 437 {
 438         if (!class_java_lang_LinkageError) {
 439                 panic("java.lang.LinkageError not found. Maybe wrong classpath?");
 440         }
 441
 442         /* throws a ClassNotFoundException with message */
 443         exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
 444                                                                                           javastring_new(classname));
 445 }
 446
 447
 448 /*********************** Function: native_findfunction *************************
 449
 450         Looks up a method (must have the same class name, method name, descriptor
 451         and 'static'ness) and returns a function pointer to it.
 452         Returns: function pointer or NULL (if there is no such method)
 453
 454         Remark: For faster operation, the names/descriptors are converted from C
 455                 strings to Unicode the first time this function is called.
 456
 457 *******************************************************************************/
 458
 459 functionptr native_findfunction(utf *cname, utf *mname,
 460                                                                 utf *desc, bool isstatic)
 461 {
 462         int i;
 463         /* entry of table for fast string comparison */
 464         struct nativecompref *n;
 465         /* for warning message if no function is found */
 466         char *buffer;
 467         int buffer_len;
 468
 469         isstatic = isstatic ? true : false;
 470
 471         if (!nativecompdone) {
 472                 for (i = 0; i < NATIVETABLESIZE; i++) {
 473                         nativecomptable[i].classname  =
 474                                 utf_new_char(nativetable[i].classname);
 475                         nativecomptable[i].methodname =
 476                                 utf_new_char(nativetable[i].methodname);
 477                         nativecomptable[i].descriptor =
 478                                 utf_new_char(nativetable[i].descriptor);
 479                         nativecomptable[i].isstatic   =
 480                                 nativetable[i].isstatic;
 481                         nativecomptable[i].func       =
 482                                 nativetable[i].func;
 483                 }
 484                 nativecompdone = true;
 485         }
 486
 487 #ifdef JOWENN_DEBUG
 488         buffer_len =
 489           utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 490
 491         buffer = MNEW(char, buffer_len);
 492
 493         strcpy(buffer, "searching matching function in native table:");
 494         utf_sprint(buffer+strlen(buffer), mname);
 495         strcpy(buffer+strlen(buffer), ": ");
 496         utf_sprint(buffer+strlen(buffer), desc);
 497         strcpy(buffer+strlen(buffer), " for class ");
 498         utf_sprint(buffer+strlen(buffer), cname);
 499
 500         log_text(buffer);
 501
 502         MFREE(buffer, char, buffer_len);
 503 #endif
 504
 505         for (i = 0; i < NATIVETABLESIZE; i++) {
 506                 n = &(nativecomptable[i]);
 507
 508                 if (cname == n->classname && mname == n->methodname &&
 509                     desc == n->descriptor && isstatic == n->isstatic)
 510                         return n->func;
 511 #ifdef JOWENN_DEBUG
 512                         else {
 513                                 if (cname == n->classname && mname == n->methodname )  log_text("static and descriptor mismatch");
 514
 515                                 else {
 516                                         buffer_len =
 517                                           utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
 518
 519                                         buffer = MNEW(char, buffer_len);
 520
 521                                         strcpy(buffer, "comparing with:");
 522                                         utf_sprint(buffer+strlen(buffer), n->methodname);
 523                                         strcpy (buffer+strlen(buffer), ": ");
 524                                         utf_sprint(buffer+strlen(buffer), n->descriptor);
 525                                         strcpy(buffer+strlen(buffer), " for class ");
 526                                         utf_sprint(buffer+strlen(buffer), n->classname);
 527
 528                                         log_text(buffer);
 529
 530                                         MFREE(buffer, char, buffer_len);
 531
 532                                 }
 533                         }
 534 #endif
 535         }
 536
 537
 538         /* no function was found, display warning */
 539
 540         buffer_len =
 541                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 542
 543         buffer = MNEW(char, buffer_len);
 544
 545         strcpy(buffer, "warning: native function ");
 546         utf_sprint(buffer + strlen(buffer), mname);
 547         strcpy(buffer + strlen(buffer), ": ");
 548         utf_sprint(buffer + strlen(buffer), desc);
 549         strcpy(buffer + strlen(buffer), " not found in class ");
 550         utf_sprint(buffer + strlen(buffer), cname);
 551
 552         log_text(buffer);
 553
 554         MFREE(buffer, char, buffer_len);
 555
 556
 557         exit(1);
 558
 559
 560         return NULL;
 561 }
 562
 563
 564 /********************** function: javastring_new *******************************
 565
 566         creates a new object of type java/lang/String with the text of
 567         the specified utf8-string
 568
 569         return: pointer to the string or NULL if memory is exhausted.
 570
 571 *******************************************************************************/
 572
 573 java_objectheader *javastring_new (utf *u)
 574 {
 575         char *utf_ptr = u->text;        /* current utf character in utf string    */
 576         int utflength = utf_strlen(u);  /* length of utf-string if uncompressed   */
 577         java_lang_String *s;                /* result-string                          */
 578         java_chararray *a;
 579         s4 i;
 580
 581 /*      log_text("javastring_new");*/
 582
 583         s = (java_lang_String*) builtin_new (class_java_lang_String);
 584         a = builtin_newarray_char (utflength);
 585
 586         /* javastring or character-array could not be created */
 587         if ((!a) || (!s))
 588                 return NULL;
 589
 590         /* decompress utf-string */
 591         for (i = 0; i < utflength; i++)
 592                 a->data[i] = utf_nextu2(&utf_ptr);
 593
 594         /* set fields of the javastring-object */
 595         s->value  = a;
 596         s->offset = 0;
 597         s->count  = utflength;
 598
 599         return (java_objectheader*) s;
 600 }
 601
 602 /********************** function: javastring_new_char **************************
 603
 604         creates a new java/lang/String object which contains the convertet
 605         C-string passed via text.
 606
 607         return: the object pointer or NULL if memory is exhausted.
 608
 609 *******************************************************************************/
 610
 611 java_objectheader *javastring_new_char (char *text)
 612 {
 613         s4 i;
 614         s4 len = strlen(text); /* length of the string */
 615         java_lang_String *s;   /* result-string */
 616         java_chararray *a;
 617
 618         /*log_text("javastring_new_char");*/
 619         s = (java_lang_String*) builtin_new (class_java_lang_String);
 620         a = builtin_newarray_char (len);
 621
 622         /* javastring or character-array could not be created */
 623         if ((!a) || (!s)) return NULL;
 624
 625         /* copy text */
 626         for (i = 0; i < len; i++)
 627                 a->data[i] = text[i];
 628
 629         /* set fields of the javastring-object */
 630         s->value = a;
 631         s->offset = 0;
 632         s->count = len;
 633
 634         return (java_objectheader*) s;
 635 }
 636
 637
 638 /************************* function javastring_tochar **************************
 639
 640         converts a Java string into a C string.
 641
 642         return: pointer to C string
 643
 644         Caution: every call of this function overwrites the previous string !!!
 645
 646 *******************************************************************************/
 647
 648 static char stringbuffer[MAXSTRINGSIZE];
 649
 650 char *javastring_tochar (java_objectheader *so)
 651 {
 652         java_lang_String *s = (java_lang_String*) so;
 653         java_chararray *a;
 654         s4 i;
 655
 656         log_text("javastring_tochar");
 657
 658         if (!s)
 659                 return "";
 660         a = s->value;
 661         if (!a)
 662                 return "";
 663         if (s->count > MAXSTRINGSIZE)
 664                 return "";
 665         for (i = 0; i < s->count; i++)
 666                 stringbuffer[i] = a->data[s->offset+i];
 667         stringbuffer[i] = '\0';
 668         return stringbuffer;
 669 }
 670
 671
 672 /****************** function class_findfield_approx ****************************
 673
 674         searches in 'classinfo'-structure for a field with the
 675         specified name
 676
 677 *******************************************************************************/
 678
 679 fieldinfo *class_findfield_approx(classinfo *c, utf *name)
 680 {
 681         s4 i;
 682         for (i = 0; i < c->fieldscount; i++) {
 683                 /* compare field names */
 684                 if ((c->fields[i].name == name))
 685                         return &(c->fields[i]);
 686         }
 687
 688         /* field was not found, raise exception */
 689         exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 690
 691         return NULL;
 692 }
 693
 694 s4 class_findfield_index_approx (classinfo *c, utf *name)
 695 {
 696         s4 i;
 697         for (i = 0; i < c->fieldscount; i++) {
 698                 /* compare field names */
 699                 if ((c->fields[i].name == name))
 700                         return i;
 701                 }
 702
 703         /* field was not found, raise exception */
 704         exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 705         return -1;
 706 }
 707
 708
 709 /********************** function: native_new_and_init *************************
 710
 711         Creates a new object on the heap and calls the initializer.
 712         Returns the object pointer or NULL if memory is exhausted.
 713
 714 *******************************************************************************/
 715
 716 java_objectheader *native_new_and_init(classinfo *c)
 717 {
 718         methodinfo *m;
 719         java_objectheader *o = builtin_new(c);          /* create object          */
 720
 721         /*
 722         printf("native_new_and_init ");
 723         utf_display(c->name);
 724         printf("\n");
 725         */
 726         if (!o) return NULL;
 727         /* printf("o!=NULL\n"); */
 728         /* find initializer */
 729
 730         m = class_findmethod(c, utf_new_char("<init>"), utf_new_char("()V"));
 731
 732         if (!m) {                                       /* initializer not found  */
 733                 if (verbose) {
 734                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 735                         utf_sprint(logtext + strlen(logtext), c->name);
 736                         dolog();
 737                 }
 738                 return o;
 739         }
 740
 741         /* call initializer */
 742
 743         asm_calljavamethod(m, o, NULL, NULL, NULL);
 744
 745         return o;
 746 }
 747
 748
 749 java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
 750 {
 751         methodinfo *m;
 752         java_objectheader *o = builtin_new(c);          /* create object          */
 753
 754         if (!o) return NULL;
 755
 756         /* find initializer */
 757
 758         m = class_findmethod(c,
 759                                                  utf_new_char("<init>"),
 760                                                  utf_new_char("(Ljava/lang/String;)V"));
 761
 762         if (!m) {                                       /* initializer not found  */
 763                 if (verbose) {
 764                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 765                         utf_sprint(logtext + strlen(logtext), c->name);
 766                         dolog();
 767                 }
 768                 return o;
 769         }
 770
 771         /* call initializer */
 772
 773         asm_calljavamethod(m, o, s, NULL, NULL);
 774
 775         return o;
 776 }
 777
 778
 779 /******************** function: stringtable_update ****************************
 780
 781         traverses the javastring hashtable and sets the vftbl-entries of
 782         javastrings which were temporarily set to NULL, because
 783         java.lang.Object was not yet loaded
 784
 785 *******************************************************************************/
 786
 787 void stringtable_update ()
 788 {
 789         java_lang_String *js;
 790         java_chararray *a;
 791         literalstring *s;       /* hashtable entry */
 792         int i;
 793
 794         for (i = 0; i < string_hash.size; i++) {
 795                 s = string_hash.ptr[i];
 796                 if (s) {
 797                         while (s) {
 798
 799                                 js = (java_lang_String *) s->string;
 800
 801                                 if (!js || !(a = js->value))
 802                                         /* error in hashtable found */
 803                                         panic("invalid literalstring in hashtable");
 804
 805                                 if (!js->header.vftbl)
 806                                         /* vftbl of javastring is NULL */
 807                                         js->header.vftbl = class_java_lang_String -> vftbl;
 808
 809                                 if (!a->header.objheader.vftbl)
 810                                         /* vftbl of character-array is NULL */
 811                                         a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
 812
 813                                 /* follow link in external hash chain */
 814                                 s = s->hashlink;
 815                         }
 816                 }
 817         }
 818 }
 819
 820
 821 /************************* function: u2_utflength ***************************
 822
 823         returns the utf length in bytes of a u2 array
 824
 825 *****************************************************************************/
 826
 827
 828 u4 u2_utflength(u2 *text, u4 u2_length)
 829 {
 830         u4 result_len =  0;  /* utf length in bytes  */
 831         u2 ch;               /* current unicode character */
 832         u4 len;
 833
 834         for (len = 0; len < u2_length; len++) {
 835
 836           /* next unicode character */
 837           ch = *text++;
 838
 839           /* determine bytes required to store unicode character as utf */
 840           if (ch && (ch < 0x80))
 841             result_len++;
 842           else if (ch < 0x800)
 843             result_len += 2;
 844           else
 845             result_len += 3;
 846         }
 847
 848     return result_len;
 849 }
 850
 851 /********************* function: utf_new_u2 ***********************************
 852
 853         make utf symbol from u2 array,
 854         if isclassname is true '.' is replaced by '/'
 855
 856 *******************************************************************************/
 857
 858 utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
 859 {
 860         char *buffer; /* memory buffer for  unicode characters */
 861         char *pos;    /* pointer to current position in buffer */
 862         u4 left;      /* unicode characters left */
 863         u4 buflength; /* utf length in bytes of the u2 array  */
 864         utf *result;  /* resulting utf-string */
 865         int i;
 866
 867         /* determine utf length in bytes and allocate memory */
 868         /* printf("utf_new_u2: unicode_length=%d\n",unicode_length);            */
 869         buflength = u2_utflength(unicode_pos, unicode_length);
 870         buffer    = MNEW(char,buflength);
 871
 872         /* memory allocation failed */
 873         if (!buffer) {
 874                 printf("length: %d\n",buflength);
 875                 log_text("utf_new_u2:buffer==NULL");
 876         }
 877
 878         left = buflength;
 879         pos  = buffer;
 880
 881         for (i = 0; i++ < unicode_length; unicode_pos++) {
 882                 /* next unicode character */
 883                 u2 c = *unicode_pos;
 884
 885                 if ((c != 0) && (c < 0x80)) {
 886                 /* 1 character */
 887                 left--;
 888                 if ((int) left < 0) break;
 889                 /* convert classname */
 890                 if (isclassname && c=='.')
 891                   *pos++ = '/';
 892                 else
 893                   *pos++ = (char) c;
 894                 } else if (c < 0x800) {
 895                 /* 2 characters */
 896                 unsigned char high = c >> 6;
 897                 unsigned char low  = c & 0x3F;
 898                 left = left - 2;
 899                 if ((int) left < 0) break;
 900                 *pos++ = high | 0xC0;
 901                 *pos++ = low  | 0x80;
 902                 } else {
 903                 /* 3 characters */
 904                 char low  = c & 0x3f;
 905                 char mid  = (c >> 6) & 0x3F;
 906                 char high = c >> 12;
 907                 left = left - 3;
 908                 if ((int) left < 0) break;
 909                 *pos++ = high | 0xE0;
 910                 *pos++ = mid  | 0x80;
 911                 *pos++ = low  | 0x80;
 912                 }
 913         }
 914
 915         /* insert utf-string into symbol-table */
 916         result = utf_new(buffer,buflength);
 917
 918         MFREE(buffer, char, buflength);
 919         return result;
 920 }
 921
 922 /********************* function: javastring_toutf *****************************
 923
 924         make utf symbol from javastring
 925
 926 *******************************************************************************/
 927
 928 utf *javastring_toutf(java_lang_String *string, bool isclassname)
 929 {
 930         java_lang_String *str = (java_lang_String *) string;
 931 /*      printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count);
 932         fflush(stdout);*/
 933         return utf_new_u2(str->value->data+str->offset,str->count, isclassname);
 934 }
 935
 936 /********************* function: literalstring_u2 *****************************
 937
 938     searches for the javastring with the specified u2-array in
 939     the string hashtable, if there is no such string a new one is
 940     created
 941
 942     if copymode is true a copy of the u2-array is made
 943
 944 *******************************************************************************/
 945
 946 java_objectheader *literalstring_u2 (java_chararray *a, u4 length, bool copymode )
 947 {
 948     literalstring *s;                /* hashtable element */
 949     java_lang_String *js;            /* u2-array wrapped in javastring */
 950     java_chararray *stringdata;      /* copy of u2-array */
 951     u4 key;
 952     u4 slot;
 953     u2 i;
 954
 955 #if JOWENN_DEBUG1
 956     printf("literalstring_u2: length: %d\n",length);
 957     log_text("literalstring_u2");
 958 #endif
 959
 960     /* find location in hashtable */
 961     key  = unicode_hashkey (a->data, length);
 962     slot = key & (string_hash.size-1);
 963     s    = string_hash.ptr[slot];
 964
 965     while (s) {
 966
 967       js = (java_lang_String *) s->string;
 968
 969       if (js->count == length) {
 970         /* compare text */
 971         for (i=0; i<length; i++)
 972           if (js->value->data[i] != a->data[i]) goto nomatch;
 973
 974         /* string already in hashtable, free memory */
 975         if (!copymode)
 976           lit_mem_free(a, sizeof(java_chararray) + sizeof(u2)*(length-1)+10);
 977
 978 #ifdef JOWENN_DEBUG1
 979         log_text("literalstring_u2: foundentry");
 980         utf_display(javastring_toutf(js,0));
 981 #endif
 982         return (java_objectheader *) js;
 983       }
 984
 985       nomatch:
 986       /* follow link in external hash chain */
 987       s = s->hashlink;
 988     }
 989
 990     if (copymode) {
 991       /* create copy of u2-array for new javastring */
 992       u4 arraysize = sizeof(java_chararray) + sizeof(u2)*(length-1)+10;
 993       stringdata = lit_mem_alloc ( arraysize );
 994       memcpy(stringdata, a, arraysize );
 995     }
 996     else
 997       stringdata = a;
 998
 999     /* location in hashtable found, complete arrayheader */
1000     stringdata -> header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
1001     stringdata -> header.size = length;
1002
1003     /* create new javastring */
1004     js = LNEW (java_lang_String);
1005     js -> header.vftbl = class_java_lang_String -> vftbl;
1006     js -> value  = stringdata;
1007     js -> offset = 0;
1008     js -> count  = length;
1009
1010     /* create new literalstring */
1011     s = NEW (literalstring);
1012     s->hashlink = string_hash.ptr[slot];
1013     s->string   = (java_objectheader *) js;
1014     string_hash.ptr[slot] = s;
1015
1016     /* update numbe of hashtable entries */
1017     string_hash.entries++;
1018
1019     /* reorganization of hashtable */
1020     if ( string_hash.entries > (string_hash.size*2)) {
1021
1022       /* reorganization of hashtable, average length of
1023          the external chains is approx. 2                */
1024
1025       u4 i;
1026       literalstring *s;
1027       hashtable newhash; /* the new hashtable */
1028
1029       /* create new hashtable, double the size */
1030       init_hashtable(&newhash, string_hash.size*2);
1031       newhash.entries=string_hash.entries;
1032
1033       /* transfer elements to new hashtable */
1034       for (i=0; i<string_hash.size; i++) {
1035         s = string_hash.ptr[i];
1036         while (s) {
1037           literalstring *nexts = s -> hashlink;
1038           js   = (java_lang_String*) s->string;
1039           slot = (unicode_hashkey(js->value->data,js->count)) & (newhash.size-1);
1040
1041           s->hashlink = newhash.ptr[slot];
1042           newhash.ptr[slot] = s;
1043
1044           /* follow link in external hash chain */
1045           s = nexts;
1046         }
1047       }
1048
1049       /* dispose old table */
1050       MFREE (string_hash.ptr, void*, string_hash.size);
1051       string_hash = newhash;
1052     }
1053 #ifdef JOWENN_DEBUG1
1054         log_text("literalstring_u2: newly created");
1055 /*      utf_display(javastring_toutf(js,0));*/
1056 #endif
1057
1058     return (java_objectheader *) js;
1059 }
1060
1061 /******************** Function: literalstring_new *****************************
1062
1063     creates a new javastring with the text of the utf-symbol
1064     and inserts it into the string hashtable
1065
1066 *******************************************************************************/
1067
1068 java_objectheader *literalstring_new (utf *u)
1069 {
1070     char *utf_ptr = u->text;         /* pointer to current unicode character in utf string */
1071     u4 utflength  = utf_strlen(u);   /* length of utf-string if uncompressed */
1072     java_chararray *a;               /* u2-array constructed from utf string */
1073     u4 i;
1074 /*    log_text("literalstring_new"); */
1075 /*    utf_display(u);*/
1076     /*if (utflength==0) while (1) sleep(60);*/
1077 /*    log_text("------------------");    */
1078     /* allocate memory */
1079     a = lit_mem_alloc (sizeof(java_chararray) + sizeof(u2)*(utflength-1)+10 );
1080     /* convert utf-string to u2-array */
1081     for (i=0; i<utflength; i++) a->data[i] = utf_nextu2(&utf_ptr);
1082
1083     return literalstring_u2(a, utflength, false);
1084 }
1085
1086
1087 /********************** function: literalstring_free **************************
1088
1089         removes a javastring from memory
1090
1091 ******************************************************************************/
1092
1093 void literalstring_free (java_objectheader* sobj)
1094 {
1095         java_lang_String *s = (java_lang_String*) sobj;
1096         java_chararray *a = s->value;
1097
1098         log_text("literalstring_free called");
1099
1100         /* dispose memory of java.lang.String object */
1101         LFREE (s, java_lang_String);
1102         /* dispose memory of java-characterarray */
1103         LFREE (a, sizeof(java_chararray) + sizeof(u2)*(a->header.size-1)); /* +10 ?? */
1104 }
1105
1106
1107
1108
1109 void copy_vftbl(vftbl **dest, vftbl *src)
1110 {
1111     *dest = src;
1112 #if 0
1113     /* XXX this kind of copying does not work (in the general
1114      * case). The interface tables would have to be copied, too. I
1115      * don't see why we should make a copy anyway. -Edwin
1116      */
1117         *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
1118         memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
1119         memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
1120 #endif
1121 }
1122
1123
1124 /******************************************************************************************
1125
1126         creates method signature (excluding return type) from array of
1127         class-objects representing the parameters of the method
1128
1129 *******************************************************************************************/
1130
1131
1132 utf *create_methodsig(java_objectarray* types, char *retType)
1133 {
1134     char *buffer;       /* buffer for building the desciptor */
1135     char *pos;          /* current position in buffer */
1136     utf *result;        /* the method signature */
1137     u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
1138     u4 i, j;
1139
1140     if (!types) return NULL;
1141
1142     /* determine required buffer-size */
1143     for (i=0;i<types->header.size;i++) {
1144       classinfo *c = (classinfo *) types->data[i];
1145       buffer_size  = buffer_size + c->name->blength+2;
1146     }
1147
1148     if (retType) buffer_size+=strlen(retType);
1149
1150     /* allocate buffer */
1151     buffer = MNEW(u1, buffer_size);
1152     pos    = buffer;
1153
1154     /* method-desciptor starts with parenthesis */
1155     *pos++ = '(';
1156
1157     for (i=0;i<types->header.size;i++) {
1158
1159             char ch;
1160             /* current argument */
1161             classinfo *c = (classinfo *) types->data[i];
1162             /* current position in utf-text */
1163             char *utf_ptr = c->name->text;
1164
1165             /* determine type of argument */
1166             if ( (ch = utf_nextu2(&utf_ptr)) == '[' ) {
1167
1168                 /* arrayclass */
1169                 for ( utf_ptr--; utf_ptr<utf_end(c->name); utf_ptr++)
1170                    *pos++ = *utf_ptr; /* copy text */
1171
1172             } else
1173             {
1174                 /* check for primitive types */
1175                 for (j=0; j<PRIMITIVETYPE_COUNT; j++) {
1176
1177                         char *utf_pos   = utf_ptr-1;
1178                         char *primitive = primitivetype_table[j].wrapname;
1179
1180                         /* compare text */
1181                         while (utf_pos<utf_end(c->name))
1182                                 if (*utf_pos++ != *primitive++) goto nomatch;
1183
1184                         /* primitive type found */
1185                         *pos++ = primitivetype_table[j].typesig;
1186                         goto next_type;
1187
1188                 nomatch:
1189                 }
1190
1191                 /* no primitive type and no arrayclass, so must be object */
1192                 *pos++ = 'L';
1193                 /* copy text */
1194                 for ( utf_ptr--; utf_ptr<utf_end(c->name); utf_ptr++)
1195                         *pos++ = *utf_ptr;
1196                 *pos++ = ';';
1197
1198                 next_type:
1199             }
1200     }
1201
1202     *pos++ = ')';
1203
1204     if (retType) {
1205         for (i=0;i<strlen(retType);i++) {
1206                 *pos++=retType[i];
1207         }
1208     }
1209     /* create utf-string */
1210     result = utf_new(buffer,(pos-buffer));
1211     MFREE(buffer, u1, buffer_size);
1212
1213     return result;
1214 }
1215
1216
1217 /******************************************************************************************
1218
1219         retrieve the next argument or returntype from a descriptor
1220         and return the corresponding class
1221
1222 *******************************************************************************************/
1223
1224 classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
1225 {
1226     classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
1227                                          (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
1228     if (!c)
1229         /* unknown type */
1230         panic("illegal descriptor");
1231
1232     if (skip) return NULL;
1233
1234     use_class_as_object(c);
1235     return c;
1236 }
1237
1238
1239 /******************************************************************************************
1240
1241         use the descriptor of a method to generate a java/lang/Class array
1242         which contains the classes of the parametertypes of the method
1243
1244 *******************************************************************************************/
1245
1246 java_objectarray* get_parametertypes(methodinfo *m)
1247 {
1248     utf  *descr    =  m->descriptor;    /* method-descriptor */
1249     char *utf_ptr  =  descr->text;      /* current position in utf-text */
1250     char *desc_end =  utf_end(descr);   /* points behind utf string     */
1251     java_objectarray* result;
1252     int parametercount = 0;
1253     int i;
1254
1255     /* skip '(' */
1256     utf_nextu2(&utf_ptr);
1257
1258     /* determine number of parameters */
1259     while ( *utf_ptr != ')' ) {
1260         get_type(&utf_ptr,desc_end,true);
1261         parametercount++;
1262     }
1263
1264     /* create class-array */
1265     result = builtin_anewarray(parametercount, class_java_lang_Class);
1266
1267     utf_ptr  =  descr->text;
1268     utf_nextu2(&utf_ptr);
1269
1270     /* get returntype classes */
1271     for (i = 0; i < parametercount; i++)
1272             result->data[i] = (java_objectheader *) get_type(&utf_ptr,desc_end, false);
1273
1274     return result;
1275 }
1276
1277
1278 /******************************************************************************************
1279
1280         get the returntype class of a method
1281
1282 *******************************************************************************************/
1283
1284 classinfo *get_returntype(methodinfo *m)
1285 {
1286         char *utf_ptr;   /* current position in utf-text */
1287         char *desc_end;  /* points behind utf string     */
1288         utf *desc = m->descriptor; /* method-descriptor  */
1289
1290         utf_ptr  = desc->text;
1291         desc_end = utf_end(desc);
1292
1293         /* ignore parametertypes */
1294         while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
1295                 /* skip */ ;
1296
1297         return get_type(&utf_ptr,desc_end, false);
1298 }
1299
1300
1301 /*****************************************************************************/
1302 /*****************************************************************************/
1303
1304
1305 /*--------------------------------------------------------*/
1306 void printNativeCall(nativeCall nc) {
1307   int i,j;
1308
1309   printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
1310   for (i=0; i<nc.methCnt; i++) {
1311       printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
1312
1313     for (j=0; j<nc.callCnt[i]; j++) {
1314         printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
1315         nc.methods[i].methodCalls[j].classname,
1316         nc.methods[i].methodCalls[j].methodname,
1317         nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1318       }
1319     }
1320   printf("-+++++--------------------\n");fflush(stdout);
1321 }
1322
1323 /*--------------------------------------------------------*/
1324 void printCompNativeCall(nativeCompCall nc) {
1325   int i,j;
1326   printf("printCompNativeCall BEGIN\n");fflush(stdout);
1327   printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
1328   utf_display(nc.classname); fflush(stdout);
1329
1330   for (i=0; i<nc.methCnt; i++) {
1331     printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
1332     utf_display(nc.methods[i].methodname); fflush(stdout);
1333     utf_display(nc.methods[i].descriptor);fflush(stdout);
1334     printf("\n");fflush(stdout);
1335
1336     for (j=0; j<nc.callCnt[i]; j++) {
1337       printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
1338         utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
1339         utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
1340         utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1341         printf("\n");fflush(stdout);
1342       }
1343     }
1344 printf("---------------------\n");fflush(stdout);
1345 }
1346
1347
1348 /*--------------------------------------------------------*/
1349 classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
1350 {
1351     int i = 0;
1352     int j = 0;
1353     int cnt = 0;
1354     classMeth mc;
1355     mc.i_class = i;
1356     mc.j_method = j;
1357     mc.methCnt = cnt;
1358
1359     return mc;
1360 }
1361
1362 /*--------------------------------------------------------*/
1363 nativeCall* findNativeClassCalls(char *aclassname ) {
1364 int i;
1365
1366 for (i=0;i<NATIVECALLSSIZE; i++) {
1367    /* convert table to utf later to speed up search */
1368    if (strcmp(nativeCalls[i].classname, aclassname) == 0)
1369         return &nativeCalls[i];
1370    }
1371
1372 return NULL;
1373 }
1374 /*--------------------------------------------------------*/
1375 /*--------------------------------------------------------*/
1376 void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
1377   int i,j;
1378
1379
1380   ncc->classname = utf_new_char(nc.classname);
1381   ncc->methCnt = nc.methCnt;
1382
1383   for (i=0; i<nc.methCnt; i++) {
1384     ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
1385     ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
1386     ncc->callCnt[i] = nc.callCnt[i];
1387
1388     for (j=0; j<nc.callCnt[i]; j++) {
1389
1390         ncc->methods[i].methodCalls[j].classname  = utf_new_char(nc.methods[i].methodCalls[j].classname);
1391
1392         if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
1393           ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
1394           ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
1395           }
1396         else {
1397           ncc->methods[i].methodCalls[j].methodname = NULL;
1398           ncc->methods[i].methodCalls[j].descriptor = NULL;
1399           }
1400       }
1401     }
1402 }
1403
1404
1405
1406 /*--------------------------------------------------------*/
1407
1408 bool natcall2utf(bool natcallcompdone) {
1409 int i;
1410
1411 if (natcallcompdone)
1412         return true;
1413
1414 for (i=0;i<NATIVECALLSSIZE; i++) {
1415    utfNativeCall  (nativeCalls[i], &nativeCompCalls[i]);
1416    }
1417
1418 return true;
1419 }
1420 /*--------------------------------------------------------*/
1421
1422
1423 /*
1424  * These are local overrides for various environment variables in Emacs.
1425  * Please do not remove this and leave it at the end of the file, where
1426  * Emacs will automagically detect them.
1427  * ---------------------------------------------------------------------
1428  * Local variables:
1429  * mode: c
1430  * indent-tabs-mode: t
1431  * c-basic-offset: 4
1432  * tab-width: 4
1433  * End:
1434  */