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 912 2004-02-05 21:20:33Z twisti $
  35
  36 */
  37
  38
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <time.h>
  42 #include <math.h>
  43 #include <string.h>
  44 #include <assert.h>
  45 #include <sys/time.h>
  46 #include <utime.h>
  47
  48 #include "config.h"
  49 #include "global.h"
  50 #include "jni.h"
  51 #include "native.h"
  52 #include "nativetypes.hh"
  53 #include "builtin.h"
  54 #include "asmpart.h"
  55 #include "tables.h"
  56 #include "loader.h"
  57 #include "jni.h"
  58 #include "toolbox/loging.h"
  59 #include "toolbox/memory.h"
  60 #include "threads/thread.h"
  61 #include "threads/threadio.h"
  62 #include "threads/locks.h"
  63
  64 /* Include files for IO functions */
  65
  66 #include <fcntl.h>
  67 #include <dirent.h>
  68 #include <sys/types.h>
  69 #ifdef _OSF_SOURCE
  70 #include <sys/mode.h>
  71 #endif
  72 #include <sys/stat.h>
  73
  74 #include "threads/threadio.h"
  75
  76 /* searchpath for classfiles */
  77 char *classpath;
  78
  79 /* for java-string to char conversion */
  80 #define MAXSTRINGSIZE 1000
  81
  82 /******************** systemclasses required for native methods ***************/
  83
  84 classinfo *class_java_lang_Class;
  85 classinfo *class_java_lang_VMClass;
  86 methodinfo *method_vmclass_init;
  87 /* static classinfo *class_java_lang_Cloneable=0; */ /* now in global.h */
  88 classinfo *class_java_lang_CloneNotSupportedException;
  89 classinfo *class_java_lang_System;
  90 classinfo *class_java_lang_ClassLoader;
  91 classinfo *class_java_lang_NoClassDefFoundError;
  92 classinfo *class_java_lang_ClassNotFoundException;
  93 classinfo *class_java_lang_LinkageError;
  94 classinfo *class_java_lang_InstantiationException;
  95 classinfo *class_java_lang_NoSuchMethodError;
  96 classinfo *class_java_lang_NoSuchFieldError;
  97 classinfo *class_java_lang_ClassFormatError;
  98 classinfo *class_java_lang_IllegalArgumentException;
  99 classinfo *class_java_lang_ArrayIndexOutOfBoundsException;
 100 classinfo *class_java_lang_NoSuchFieldException;
 101 classinfo *class_java_io_SyncFailedException;
 102 classinfo *class_java_io_IOException;
 103 classinfo *class_java_io_FileNotFoundException;
 104 classinfo *class_java_io_UnixFileSystem;
 105 classinfo *class_java_security_PrivilegedActionException;
 106 classinfo *class_java_net_UnknownHostException;
 107 classinfo *class_java_net_SocketException;
 108 classinfo *class_java_lang_NoSuchMethodException;
 109 classinfo *class_java_lang_Double;
 110 classinfo *class_java_lang_Float;
 111 classinfo *class_java_lang_Long;
 112 classinfo *class_java_lang_Byte;
 113 classinfo *class_java_lang_Short;
 114 classinfo *class_java_lang_Boolean;
 115 classinfo *class_java_lang_Void;
 116 classinfo *class_java_lang_Character;
 117 classinfo *class_java_lang_Integer;
 118
 119 /* the system classloader object */
 120 struct java_lang_ClassLoader *SystemClassLoader = NULL;
 121
 122 /* for raising exceptions from native methods */
 123 THREADSPECIFIC java_objectheader* _exceptionptr = NULL;
 124
 125 /************* use classinfo structure as java.lang.Class object **************/
 126
 127 void use_class_as_object(classinfo *c)
 128 {
 129         vftbl *vt;
 130 /*      vftbl *newtbl; */
 131
 132         if (!class_java_lang_Class)
 133                 class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
 134
 135         vt = class_java_lang_Class->vftbl;
 136
 137
 138         if (!c->classvftbl) {
 139                 c->classvftbl = true;
 140
 141                 /*                copy_vftbl(&newtbl, vt);
 142                                                   newtbl->class = c->header.vftbl->class;
 143                                                   newtbl->baseval = c->header.vftbl->baseval;
 144                                                   newtbl->diffval = c->header.vftbl->diffval;
 145                                                   c->header.vftbl = newtbl;*/
 146
 147                 c->header.vftbl = class_java_lang_Class->vftbl;
 148
 149                 if (!class_java_lang_VMClass) {
 150                         loader_load_sysclass(&class_java_lang_VMClass,
 151                                                                  utf_new_char("java/lang/VMClass"));
 152
 153                         method_vmclass_init =
 154                                 class_findmethod(class_java_lang_VMClass,
 155                                                                  utf_new_char("<init>"),
 156                                                                  utf_new_char("(Lgnu/classpath/RawData;)V"));
 157
 158                         if (method_vmclass_init == 0) {
 159                                 class_showmethods(class_java_lang_VMClass);
 160                                 panic("Needed class initializer for VMClass could not be found");
 161                         }
 162                 }
 163                 {
 164                         java_objectheader *vmo = builtin_new(class_java_lang_VMClass);
 165
 166                         if (!vmo) panic("Error while creating instance of java/lang/VMClass");
 167                         asm_calljavafunction(method_vmclass_init, vmo, c, NULL, NULL);
 168                         c->vmClass = (java_lang_VMClass *) vmo;
 169                         /*log_text("VMCLASS has been attached");*/
 170                 }
 171         }
 172 }
 173
 174
 175 /*************************** include native methods ***************************/
 176
 177 #ifdef USE_GTK
 178 #include "nat/GdkGraphics.c"
 179 #include "nat/GtkComponentPeer.c"
 180 #include "nat/GdkPixbufDecoder.c"
 181 #include "nat/GtkScrollPanePeer.c"
 182 #include "nat/GtkFileDialogPeer.c"
 183 #include "nat/GtkLabelPeer.c"
 184 #endif
 185
 186
 187 /************************** tables for methods ********************************/
 188
 189 #undef JOWENN_DEBUG
 190 #undef JOWENN_DEBUG1
 191
 192 /* table for locating native methods */
 193 static struct nativeref {
 194         char *classname;
 195         char *methodname;
 196         char *descriptor;
 197         bool isstatic;
 198         functionptr func;
 199 } nativetable [] = {
 200
 201 #include "nativetable.hh"
 202
 203 };
 204
 205
 206 #define NATIVETABLESIZE  (sizeof(nativetable)/sizeof(struct nativeref))
 207
 208 /* table for fast string comparison */
 209 static struct nativecompref {
 210         utf *classname;
 211         utf *methodname;
 212         utf *descriptor;
 213         bool isstatic;
 214         functionptr func;
 215 } nativecomptable [NATIVETABLESIZE];
 216
 217 /* string comparsion table initialized */
 218 static bool nativecompdone = false;
 219
 220
 221 /******************************************************************************/
 222 /******************************************************************************/
 223 #include "natcalls.h"
 224
 225 /* string call comparison table initialized */
 226
 227 /******************************************************************************/
 228 /******************************************************************************/
 229
 230 /*--------------- native method calls & classes used -------------------------*/
 231
 232
 233
 234 /* throw some loader exceptions */
 235
 236 void throw_noclassdeffounderror_message(utf* classname)
 237 {
 238         if (!class_java_lang_NoClassDefFoundError) {
 239                 panic("java.lang.NoClassDefFoundError not found. Maybe wrong classpath?");
 240         }
 241
 242         /* throws a NoClassDefFoundError with message */
 243         *exceptionptr = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
 244                                                                                           javastring_new(classname));
 245 }
 246
 247
 248 void throw_linkageerror_message(utf* classname)
 249 {
 250         if (!class_java_lang_LinkageError) {
 251                 panic("java.lang.LinkageError not found. Maybe wrong classpath?");
 252         }
 253
 254         /* throws a LinkageError with message */
 255         *exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
 256                                                                                           javastring_new(classname));
 257 }
 258
 259
 260 void throw_exception_message(char *classname, char *message)
 261 {
 262         classinfo *c = class_new(utf_new_char(classname));
 263
 264         if (!c->linked)
 265                 panic("...");
 266
 267         *exceptionptr = native_new_and_init_string(c,
 268                                                                                            javastring_new_char(message));
 269 }
 270
 271
 272 /*********************** function: native_loadclasses **************************
 273
 274         load classes required for native methods
 275
 276 *******************************************************************************/
 277
 278 void native_loadclasses()
 279 {
 280         static int classesLoaded=0; /*temporary hack JoWenn*/
 281         if (classesLoaded) return;
 282         classesLoaded = 1;
 283 /*      log_text("loadclasses entered");*/
 284
 285
 286         /*class_java_lang_System =*/
 287         (void) class_new(utf_new_char("java/lang/VMClass"));/*JoWenn*/
 288         (void) class_new(utf_new_char("java/lang/Class"));/*JoWenn*/
 289
 290         /* class_new adds the class to the list of classes to be loaded */
 291         if (!class_java_lang_Cloneable)
 292                 class_java_lang_Cloneable =
 293                         class_new(utf_new_char("java/lang/Cloneable"));
 294 /*      log_text("loadclasses: class_java_lang_Cloneable has been initialized");*/
 295         class_java_lang_CloneNotSupportedException =
 296                 class_new(utf_new_char("java/lang/CloneNotSupportedException"));
 297         if (!class_java_lang_Class)
 298                 class_java_lang_Class =
 299                         class_new(utf_new_char("java/lang/Class"));
 300         class_java_io_IOException =
 301                 class_new(utf_new_char("java/io/IOException"));
 302         class_java_io_FileNotFoundException =
 303                 class_new(utf_new_char("java/io/FileNotFoundException"));
 304         class_java_lang_NoClassDefFoundError =
 305                 class_new(utf_new_char("java/lang/NoClassDefFoundError"));
 306         class_java_lang_ClassNotFoundException =
 307                 class_new(utf_new_char("java/lang/ClassNotFoundException"));
 308         class_java_lang_LinkageError =
 309                 class_new(utf_new_char("java/lang/LinkageError"));
 310         class_java_lang_InstantiationException =
 311                 class_new(utf_new_char("java/lang/InstantiationException"));
 312         class_java_lang_NoSuchMethodError =
 313                 class_new(utf_new_char("java/lang/NoSuchMethodError"));
 314         class_java_lang_NoSuchFieldError =
 315                 class_new(utf_new_char("java/lang/NoSuchFieldError"));
 316         class_java_lang_ClassFormatError =
 317                 class_new(utf_new_char("java/lang/ClassFormatError"));
 318         class_java_io_SyncFailedException =
 319                 class_new(utf_new_char("java/io/SyncFailedException"));
 320
 321 /*      log_text("native_loadclasses: class_new(\"java/lang/ClassLoader\")");           */
 322         class_java_lang_ClassLoader =
 323                 class_new(utf_new_char("java/lang/ClassLoader"));
 324 /*      log_text("native_loadclasses: class_new(\"java/security/PrivilegedActionException\")");         */
 325         class_java_security_PrivilegedActionException =
 326                 class_new(utf_new_char("java/security/PrivilegedActionException"));
 327
 328         loader_load_sysclass(&class_java_net_UnknownHostException,
 329                                                  utf_new_char("java/net/UnknownHostException"));
 330         loader_load_sysclass(&class_java_net_SocketException,
 331                                                  utf_new_char("java/net/SocketException"));
 332
 333         class_java_lang_IllegalArgumentException =
 334                 class_new(utf_new_char("java/lang/IllegalArgumentException"));
 335         class_java_lang_ArrayIndexOutOfBoundsException =
 336                 class_new(utf_new_char("java/lang/ArrayIndexOutOfBoundsException"));
 337         class_java_lang_NoSuchFieldException =
 338                 class_new(utf_new_char("java/lang/NoSuchFieldException"));
 339         class_java_lang_NoSuchMethodException =
 340                 class_new(utf_new_char("java/lang/NoSuchMethodException"));
 341
 342         /* load classes for wrapping primitive types */
 343         class_java_lang_Double    = class_new(utf_new_char("java/lang/Double"));
 344         class_init(class_java_lang_Double);
 345
 346         class_java_lang_Float     = class_new(utf_new_char("java/lang/Float"));
 347         class_java_lang_Character =     class_new(utf_new_char("java/lang/Character"));
 348         class_java_lang_Integer   = class_new(utf_new_char("java/lang/Integer"));
 349         class_java_lang_Long      = class_new(utf_new_char("java/lang/Long"));
 350         class_java_lang_Byte      = class_new(utf_new_char("java/lang/Byte"));
 351         class_java_lang_Short     = class_new(utf_new_char("java/lang/Short"));
 352         class_java_lang_Boolean   = class_new(utf_new_char("java/lang/Boolean"));
 353         class_java_lang_Void      = class_new(utf_new_char("java/lang/Void"));
 354
 355         classesLoaded = 1;
 356 }
 357
 358
 359 /*************** adds a class to the vector of loaded classes ****************/
 360
 361 void systemclassloader_addclass(classinfo *c)
 362 {
 363         methodinfo *m;
 364
 365         /* find method addClass of java.lang.ClassLoader */
 366         m = class_resolvemethod(class_java_lang_ClassLoader,
 367                                                         utf_new_char("addClass"),
 368                                                         utf_new_char("(Ljava/lang/Class;)")
 369                                                         );
 370
 371         if (!m)
 372                 panic("warning: cannot initialize classloader");
 373
 374         /* prepare class to be passed as argument */
 375         use_class_as_object (c);
 376
 377         /* call 'addClass' */
 378         asm_calljavafunction(m,
 379                                                  (java_objectheader*) SystemClassLoader,
 380                                                  (java_objectheader*) c,
 381                                                  NULL,
 382                                                  NULL
 383                                                  );
 384 }
 385
 386
 387 /*************** adds a library to the vector of loaded libraries *************/
 388
 389 void systemclassloader_addlibrary(java_objectheader *o)
 390 {
 391         log_text("systemclassloader_addlibrary");
 392 }
 393
 394
 395 /*****************************************************************************
 396
 397         create systemclassloader object and initialize instance fields
 398
 399 ******************************************************************************/
 400
 401 void init_systemclassloader()
 402 {
 403         if (!SystemClassLoader) {
 404                 native_loadclasses();
 405                 log_text("Initializing new system class loader");
 406                 /* create object and call initializer */
 407                 SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
 408
 409                 /* systemclassloader has no parent */
 410                 SystemClassLoader->parent      = NULL;
 411                 SystemClassLoader->initialized = true;
 412         }
 413         log_text("leaving system class loader");
 414 }
 415
 416
 417 /********************* add loaded library name  *******************************/
 418
 419 void systemclassloader_addlibname(java_objectheader *o)
 420 {
 421         methodinfo *m;
 422         jfieldID id;
 423
 424         m = class_resolvemethod(loader_load_sysclass(NULL, utf_new_char ("java/util/Vector")),
 425                                                         utf_new_char("addElement"),
 426                                                         utf_new_char("(Ljava/lang/Object;)V"));
 427
 428         if (!m) panic("cannot initialize classloader");
 429
 430         id = envTable.GetStaticFieldID(&env,
 431                                                                    class_java_lang_ClassLoader,
 432                                                                    "loadedLibraryNames",
 433                                                                    "Ljava/util/Vector;");
 434
 435         if (!id) panic("can not access ClassLoader");
 436
 437         asm_calljavafunction(m,
 438                                                  envTable.GetStaticObjectField(&env, class_java_lang_ClassLoader, id),
 439                                                  o,
 440                                                  NULL,
 441                                                  NULL);
 442 }
 443
 444
 445 /********************* function: native_setclasspath **************************/
 446
 447 void native_setclasspath(char *path)
 448 {
 449         /* set searchpath for classfiles */
 450         classpath = path;
 451 }
 452
 453
 454 /*********************** Function: native_findfunction *************************
 455
 456         Looks up a method (must have the same class name, method name, descriptor
 457         and 'static'ness) and returns a function pointer to it.
 458         Returns: function pointer or NULL (if there is no such method)
 459
 460         Remark: For faster operation, the names/descriptors are converted from C
 461                 strings to Unicode the first time this function is called.
 462
 463 *******************************************************************************/
 464
 465 functionptr native_findfunction(utf *cname, utf *mname,
 466                                                                 utf *desc, bool isstatic)
 467 {
 468         int i;
 469         /* entry of table for fast string comparison */
 470         struct nativecompref *n;
 471         /* for warning message if no function is found */
 472         char *buffer;
 473         int buffer_len;
 474
 475         isstatic = isstatic ? true : false;
 476
 477         if (!nativecompdone) {
 478                 for (i = 0; i < NATIVETABLESIZE; i++) {
 479                         nativecomptable[i].classname  =
 480                                 utf_new_char(nativetable[i].classname);
 481                         nativecomptable[i].methodname =
 482                                 utf_new_char(nativetable[i].methodname);
 483                         nativecomptable[i].descriptor =
 484                                 utf_new_char(nativetable[i].descriptor);
 485                         nativecomptable[i].isstatic   =
 486                                 nativetable[i].isstatic;
 487                         nativecomptable[i].func       =
 488                                 nativetable[i].func;
 489                 }
 490                 nativecompdone = true;
 491         }
 492
 493 #ifdef JOWENN_DEBUG
 494         buffer_len =
 495                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 496
 497         buffer = MNEW(char, buffer_len);
 498
 499         strcpy(buffer, "searching matching function in native table:");
 500         utf_sprint(buffer+strlen(buffer), mname);
 501         strcpy(buffer+strlen(buffer), ": ");
 502         utf_sprint(buffer+strlen(buffer), desc);
 503         strcpy(buffer+strlen(buffer), " for class ");
 504         utf_sprint(buffer+strlen(buffer), cname);
 505
 506         log_text(buffer);
 507
 508         MFREE(buffer, char, buffer_len);
 509 #endif
 510
 511         for (i = 0; i < NATIVETABLESIZE; i++) {
 512                 n = &(nativecomptable[i]);
 513
 514                 if (cname == n->classname && mname == n->methodname &&
 515                     desc == n->descriptor && isstatic == n->isstatic)
 516                         return n->func;
 517 #ifdef JOWENN_DEBUG
 518                         else {
 519                                 if (cname == n->classname && mname == n->methodname )  log_text("static and descriptor mismatch");
 520
 521                                 else {
 522                                         buffer_len =
 523                                           utf_strlen(n->classname) + utf_strlen(n->methodname) + utf_strlen(n->descriptor) + 64;
 524
 525                                         buffer = MNEW(char, buffer_len);
 526
 527                                         strcpy(buffer, "comparing with:");
 528                                         utf_sprint(buffer+strlen(buffer), n->methodname);
 529                                         strcpy (buffer+strlen(buffer), ": ");
 530                                         utf_sprint(buffer+strlen(buffer), n->descriptor);
 531                                         strcpy(buffer+strlen(buffer), " for class ");
 532                                         utf_sprint(buffer+strlen(buffer), n->classname);
 533
 534                                         log_text(buffer);
 535
 536                                         MFREE(buffer, char, buffer_len);
 537                                 }
 538                         }
 539 #endif
 540         }
 541
 542
 543         /* no function was found, display warning */
 544
 545         buffer_len =
 546                 utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
 547
 548         buffer = MNEW(char, buffer_len);
 549
 550         strcpy(buffer, "warning: native function ");
 551         utf_sprint(buffer + strlen(buffer), mname);
 552         strcpy(buffer + strlen(buffer), ": ");
 553         utf_sprint(buffer + strlen(buffer), desc);
 554         strcpy(buffer + strlen(buffer), " not found in class ");
 555         utf_sprint(buffer + strlen(buffer), cname);
 556
 557         log_text(buffer);
 558
 559         MFREE(buffer, char, buffer_len);
 560
 561         exit(1);
 562
 563         /* keep compiler happy */
 564         return NULL;
 565 }
 566
 567
 568 /********************** function: javastring_new *******************************
 569
 570         creates a new object of type java/lang/String with the text of
 571         the specified utf8-string
 572
 573         return: pointer to the string or NULL if memory is exhausted.
 574
 575 *******************************************************************************/
 576
 577 /*  java_objectheader *javastring_new(utf *u) */
 578 java_lang_String *javastring_new(utf *u)
 579 {
 580         char *utf_ptr = u->text;        /* current utf character in utf string    */
 581         int utflength = utf_strlen(u);  /* length of utf-string if uncompressed   */
 582         java_lang_String *s;                /* result-string                          */
 583         java_chararray *a;
 584         s4 i;
 585
 586 /*      log_text("javastring_new");*/
 587
 588         s = (java_lang_String*) builtin_new(class_java_lang_String);
 589         a = builtin_newarray_char(utflength);
 590
 591         /* javastring or character-array could not be created */
 592         if ((!a) || (!s))
 593                 return NULL;
 594
 595         /* decompress utf-string */
 596         for (i = 0; i < utflength; i++)
 597                 a->data[i] = utf_nextu2(&utf_ptr);
 598
 599         /* set fields of the javastring-object */
 600         s->value  = a;
 601         s->offset = 0;
 602         s->count  = utflength;
 603
 604 /*      return (java_objectheader*) s; */
 605         return s;
 606 }
 607
 608
 609 /********************** function: javastring_new_char **************************
 610
 611         creates a new java/lang/String object which contains the convertet
 612         C-string passed via text.
 613
 614         return: the object pointer or NULL if memory is exhausted.
 615
 616 *******************************************************************************/
 617
 618 /*  java_objectheader *javastring_new_char (char *text) */
 619 java_lang_String *javastring_new_char (char *text)
 620 {
 621         s4 i;
 622         s4 len = strlen(text); /* length of the string */
 623         java_lang_String *s;   /* result-string */
 624         java_chararray *a;
 625
 626         /*log_text("javastring_new_char");*/
 627         s = (java_lang_String*) builtin_new(class_java_lang_String);
 628         a = builtin_newarray_char(len);
 629
 630         /* javastring or character-array could not be created */
 631         if ((!a) || (!s))
 632                 return NULL;
 633
 634         /* copy text */
 635         for (i = 0; i < len; i++)
 636                 a->data[i] = text[i];
 637
 638         /* set fields of the javastring-object */
 639         s->value  = a;
 640         s->offset = 0;
 641         s->count  = len;
 642
 643 /*      return (java_objectheader*) s; */
 644         return s;
 645 }
 646
 647
 648 /************************* function javastring_tochar **************************
 649
 650         converts a Java string into a C string.
 651
 652         return: pointer to C string
 653
 654         Caution: every call of this function overwrites the previous string !!!
 655
 656 *******************************************************************************/
 657
 658 static char stringbuffer[MAXSTRINGSIZE];
 659
 660 char *javastring_tochar(java_objectheader *so)
 661 {
 662         java_lang_String *s = (java_lang_String *) so;
 663         java_chararray *a;
 664         s4 i;
 665
 666         if (!s)
 667                 return "";
 668
 669         a = s->value;
 670
 671         if (!a)
 672                 return "";
 673
 674         if (s->count > MAXSTRINGSIZE)
 675                 return "";
 676
 677         for (i = 0; i < s->count; i++)
 678                 stringbuffer[i] = a->data[s->offset + i];
 679
 680         stringbuffer[i] = '\0';
 681
 682         return stringbuffer;
 683 }
 684
 685
 686 /****************** function class_findfield_approx ****************************
 687
 688         searches in 'classinfo'-structure for a field with the
 689         specified name
 690
 691 *******************************************************************************/
 692
 693 fieldinfo *class_findfield_approx(classinfo *c, utf *name)
 694 {
 695         s4 i;
 696         for (i = 0; i < c->fieldscount; i++) {
 697                 /* compare field names */
 698                 if ((c->fields[i].name == name))
 699                         return &(c->fields[i]);
 700         }
 701
 702         /* field was not found, raise exception */
 703         *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 704
 705         return NULL;
 706 }
 707
 708 s4 class_findfield_index_approx (classinfo *c, utf *name)
 709 {
 710         s4 i;
 711         for (i = 0; i < c->fieldscount; i++) {
 712                 /* compare field names */
 713                 if ((c->fields[i].name == name))
 714                         return i;
 715                 }
 716
 717         /* field was not found, raise exception */
 718         *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
 719         return -1;
 720 }
 721
 722
 723 /********************** function: native_new_and_init *************************
 724
 725         Creates a new object on the heap and calls the initializer.
 726         Returns the object pointer or NULL if memory is exhausted.
 727
 728 *******************************************************************************/
 729
 730 java_objectheader *native_new_and_init(classinfo *c)
 731 {
 732         methodinfo *m;
 733         java_objectheader *o;
 734
 735         /* if c==NULL it is probebly because loader_load failed */
 736         if (!c) return *exceptionptr;
 737
 738         o = builtin_new(c);          /* create object          */
 739
 740         /*
 741         printf("native_new_and_init ");
 742         utf_display(c->name);
 743         printf("\n");
 744         */
 745         if (!o) return NULL;
 746         /* printf("o!=NULL\n"); */
 747         /* find initializer */
 748
 749         m = class_findmethod(c, utf_new_char("<init>"), utf_new_char("()V"));
 750
 751         if (!m) {                                       /* initializer not found  */
 752                 if (verbose) {
 753                         char logtext[MAXLOGTEXT];
 754                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 755                         utf_sprint(logtext + strlen(logtext), c->name);
 756                         log_text(logtext);
 757                 }
 758                 return o;
 759         }
 760
 761         /* call initializer */
 762
 763         asm_calljavafunction(m, o, NULL, NULL, NULL);
 764
 765         return o;
 766 }
 767
 768
 769 java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
 770 {
 771         methodinfo *m;
 772         java_objectheader *o;
 773
 774         /* if c==NULL it is probebly because loader_load failed */
 775         if (!c) return *exceptionptr;
 776
 777         o = builtin_new(c);          /* create object          */
 778
 779         if (!o) return NULL;
 780
 781         /* find initializer */
 782
 783         m = class_findmethod(c,
 784                                                  utf_new_char("<init>"),
 785                                                  utf_new_char("(Ljava/lang/String;)V"));
 786
 787         if (!m) {                                       /* initializer not found  */
 788                 if (verbose) {
 789                         char logtext[MAXLOGTEXT];
 790                         sprintf(logtext, "Warning: class has no instance-initializer: ");
 791                         utf_sprint(logtext + strlen(logtext), c->name);
 792                         log_text(logtext);
 793                 }
 794                 return o;
 795         }
 796
 797         /* call initializer */
 798
 799         asm_calljavafunction(m, o, s, NULL, NULL);
 800
 801         return o;
 802 }
 803
 804
 805 /******************** function: stringtable_update ****************************
 806
 807         traverses the javastring hashtable and sets the vftbl-entries of
 808         javastrings which were temporarily set to NULL, because
 809         java.lang.Object was not yet loaded
 810
 811 *******************************************************************************/
 812
 813 void stringtable_update ()
 814 {
 815         java_lang_String *js;
 816         java_chararray *a;
 817         literalstring *s;       /* hashtable entry */
 818         int i;
 819
 820         for (i = 0; i < string_hash.size; i++) {
 821                 s = string_hash.ptr[i];
 822                 if (s) {
 823                         while (s) {
 824
 825                                 js = (java_lang_String *) s->string;
 826
 827                                 if (!js || !js->value)
 828                                         /* error in hashtable found */
 829                                         panic("invalid literalstring in hashtable");
 830
 831                                 a = js->value;
 832
 833                                 if (!js->header.vftbl)
 834                                         /* vftbl of javastring is NULL */
 835                                         js->header.vftbl = class_java_lang_String -> vftbl;
 836
 837                                 if (!a->header.objheader.vftbl)
 838                                         /* vftbl of character-array is NULL */
 839                                         a->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
 840
 841                                 /* follow link in external hash chain */
 842                                 s = s->hashlink;
 843                         }
 844                 }
 845         }
 846 }
 847
 848
 849 /************************* function: u2_utflength ***************************
 850
 851         returns the utf length in bytes of a u2 array
 852
 853 *****************************************************************************/
 854
 855 u4 u2_utflength(u2 *text, u4 u2_length)
 856 {
 857         u4 result_len =  0;  /* utf length in bytes  */
 858         u2 ch;               /* current unicode character */
 859         u4 len;
 860
 861         for (len = 0; len < u2_length; len++) {
 862                 /* next unicode character */
 863                 ch = *text++;
 864
 865                 /* determine bytes required to store unicode character as utf */
 866                 if (ch && (ch < 0x80))
 867                         result_len++;
 868                 else if (ch < 0x800)
 869                         result_len += 2;
 870                 else
 871                         result_len += 3;
 872         }
 873
 874     return result_len;
 875 }
 876
 877
 878 /********************* function: utf_new_u2 ***********************************
 879
 880         make utf symbol from u2 array,
 881         if isclassname is true '.' is replaced by '/'
 882
 883 *******************************************************************************/
 884
 885 utf *utf_new_u2(u2 *unicode_pos, u4 unicode_length, bool isclassname)
 886 {
 887         char *buffer; /* memory buffer for  unicode characters */
 888         char *pos;    /* pointer to current position in buffer */
 889         u4 left;      /* unicode characters left */
 890         u4 buflength; /* utf length in bytes of the u2 array  */
 891         utf *result;  /* resulting utf-string */
 892         int i;
 893
 894         /* determine utf length in bytes and allocate memory */
 895         /* printf("utf_new_u2: unicode_length=%d\n",unicode_length);            */
 896         buflength = u2_utflength(unicode_pos, unicode_length);
 897         buffer    = MNEW(char, buflength);
 898
 899         /* memory allocation failed */
 900         if (!buffer) {
 901                 printf("length: %d\n",buflength);
 902                 log_text("utf_new_u2:buffer==NULL");
 903         }
 904
 905         left = buflength;
 906         pos  = buffer;
 907
 908         for (i = 0; i++ < unicode_length; unicode_pos++) {
 909                 /* next unicode character */
 910                 u2 c = *unicode_pos;
 911
 912                 if ((c != 0) && (c < 0x80)) {
 913                         /* 1 character */
 914                         left--;
 915                 if ((int) left < 0) break;
 916                         /* convert classname */
 917                         if (isclassname && c == '.')
 918                                 *pos++ = '/';
 919                         else
 920                                 *pos++ = (char) c;
 921
 922                 } else if (c < 0x800) {
 923                         /* 2 characters */
 924                 unsigned char high = c >> 6;
 925                 unsigned char low  = c & 0x3F;
 926                         left = left - 2;
 927                 if ((int) left < 0) break;
 928                 *pos++ = high | 0xC0;
 929                 *pos++ = low  | 0x80;
 930
 931                 } else {
 932                 /* 3 characters */
 933                 char low  = c & 0x3f;
 934                 char mid  = (c >> 6) & 0x3F;
 935                 char high = c >> 12;
 936                         left = left - 3;
 937                 if ((int) left < 0) break;
 938                 *pos++ = high | 0xE0;
 939                 *pos++ = mid  | 0x80;
 940                 *pos++ = low  | 0x80;
 941                 }
 942         }
 943
 944         /* insert utf-string into symbol-table */
 945         result = utf_new(buffer,buflength);
 946
 947         MFREE(buffer, char, buflength);
 948
 949         return result;
 950 }
 951
 952
 953 /********************* function: javastring_toutf *****************************
 954
 955         make utf symbol from javastring
 956
 957 *******************************************************************************/
 958
 959 utf *javastring_toutf(java_lang_String *string, bool isclassname)
 960 {
 961         java_lang_String *str = (java_lang_String *) string;
 962
 963 /*      printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count); */
 964 /*      fflush(stdout); */
 965
 966         return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
 967 }
 968
 969
 970 /********************* function: literalstring_u2 *****************************
 971
 972     searches for the javastring with the specified u2-array in
 973     the string hashtable, if there is no such string a new one is
 974     created
 975
 976     if copymode is true a copy of the u2-array is made
 977
 978 *******************************************************************************/
 979
 980 java_objectheader *literalstring_u2(java_chararray *a, u4 length, u4 offset,
 981                                                                         bool copymode)
 982 {
 983     literalstring *s;                /* hashtable element */
 984     java_lang_String *js;            /* u2-array wrapped in javastring */
 985     java_chararray *stringdata;      /* copy of u2-array */
 986     u4 key;
 987     u4 slot;
 988     u2 i;
 989
 990 //#define DEBUG_LITERALSTRING_U2
 991 #ifdef DEBUG_LITERALSTRING_U2
 992     printf("literalstring_u2: length=%d, offset=%d\n", length, offset);
 993         fflush(stdout);
 994 #endif
 995
 996     /* find location in hashtable */
 997     key  = unicode_hashkey(a->data + offset, length);
 998     slot = key & (string_hash.size - 1);
 999     s    = string_hash.ptr[slot];
1000
1001     while (s) {
1002                 js = (java_lang_String *) s->string;
1003
1004                 if (length == js->count) {
1005                         /* compare text */
1006                         for (i = 0; i < length; i++) {
1007                                 if (a->data[offset + i] != js->value->data[i])
1008                                         goto nomatch;
1009                         }
1010
1011                         /* string already in hashtable, free memory */
1012                         if (!copymode)
1013                                 lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
1014
1015 #ifdef DEBUG_LITERALSTRING_U2
1016                         printf("literalstring_u2: foundentry at %p\n", js);
1017                         utf_display(javastring_toutf(js, 0));
1018                         printf("\n\n");
1019                         fflush(stdout);
1020 #endif
1021                         return (java_objectheader *) js;
1022                 }
1023
1024         nomatch:
1025                 /* follow link in external hash chain */
1026                 s = s->hashlink;
1027     }
1028
1029     if (copymode) {
1030                 /* create copy of u2-array for new javastring */
1031                 u4 arraysize = sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10;
1032                 stringdata = lit_mem_alloc(arraysize);
1033 /*              memcpy(stringdata, a, arraysize); */
1034                 memcpy(&(stringdata->header), &(a->header), sizeof(java_arrayheader));
1035                 memcpy(&(stringdata->data), &(a->data) + offset, sizeof(u2) * (length - 1) + 10);
1036
1037     } else {
1038                 stringdata = a;
1039         }
1040
1041     /* location in hashtable found, complete arrayheader */
1042     stringdata->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
1043     stringdata->header.size = length;
1044
1045     /* create new javastring */
1046     js = LNEW(java_lang_String);
1047     js->header.vftbl = class_java_lang_String->vftbl;
1048     js->value  = stringdata;
1049     js->offset = 0;
1050     js->count  = length;
1051
1052     /* create new literalstring */
1053     s = NEW(literalstring);
1054     s->hashlink = string_hash.ptr[slot];
1055     s->string   = (java_objectheader *) js;
1056     string_hash.ptr[slot] = s;
1057
1058     /* update numbe of hashtable entries */
1059     string_hash.entries++;
1060
1061     /* reorganization of hashtable */
1062     if (string_hash.entries > (string_hash.size * 2)) {
1063                 /* reorganization of hashtable, average length of
1064          the external chains is approx. 2                */
1065
1066                 u4 i;
1067                 literalstring *s;
1068                 hashtable newhash; /* the new hashtable */
1069
1070                 /* create new hashtable, double the size */
1071                 init_hashtable(&newhash, string_hash.size * 2);
1072                 newhash.entries = string_hash.entries;
1073
1074                 /* transfer elements to new hashtable */
1075                 for (i = 0; i < string_hash.size; i++) {
1076                         s = string_hash.ptr[i];
1077                         while (s) {
1078                                 literalstring *nexts = s->hashlink;
1079                                 js   = (java_lang_String *) s->string;
1080                                 slot = unicode_hashkey(js->value->data, js->count) & (newhash.size - 1);
1081
1082                                 s->hashlink = newhash.ptr[slot];
1083                                 newhash.ptr[slot] = s;
1084
1085                                 /* follow link in external hash chain */
1086                                 s = nexts;
1087                         }
1088                 }
1089
1090                 /* dispose old table */
1091                 MFREE(string_hash.ptr, void*, string_hash.size);
1092                 string_hash = newhash;
1093     }
1094
1095 #ifdef DEBUG_LITERALSTRING_U2
1096         printf("literalstring_u2: newly created at %p\n", js);
1097         utf_display(javastring_toutf(js, 0));
1098         printf("\n\n");
1099         fflush(stdout);
1100 #endif
1101
1102     return (java_objectheader *) js;
1103 }
1104
1105
1106 /******************** Function: literalstring_new *****************************
1107
1108     creates a new javastring with the text of the utf-symbol
1109     and inserts it into the string hashtable
1110
1111 *******************************************************************************/
1112
1113 java_objectheader *literalstring_new(utf *u)
1114 {
1115     char *utf_ptr = u->text;         /* pointer to current unicode character in utf string */
1116     u4 utflength  = utf_strlen(u);   /* length of utf-string if uncompressed */
1117     java_chararray *a;               /* u2-array constructed from utf string */
1118     u4 i;
1119 /*    log_text("literalstring_new"); */
1120 /*    utf_display(u);*/
1121     /*if (utflength==0) while (1) sleep(60);*/
1122 /*    log_text("------------------");    */
1123     /* allocate memory */
1124     a = lit_mem_alloc(sizeof(java_chararray) + sizeof(u2) * (utflength - 1) + 10);
1125
1126     /* convert utf-string to u2-array */
1127     for (i = 0; i < utflength; i++)
1128                 a->data[i] = utf_nextu2(&utf_ptr);
1129
1130     return literalstring_u2(a, utflength, 0, false);
1131 }
1132
1133
1134 /********************** function: literalstring_free **************************
1135
1136         removes a javastring from memory
1137
1138 ******************************************************************************/
1139
1140 void literalstring_free(java_objectheader* sobj)
1141 {
1142         java_lang_String *s = (java_lang_String *) sobj;
1143         java_chararray *a = s->value;
1144
1145         log_text("literalstring_free called");
1146
1147         /* dispose memory of java.lang.String object */
1148         LFREE(s, java_lang_String);
1149
1150         /* dispose memory of java-characterarray */
1151         LFREE(a, sizeof(java_chararray) + sizeof(u2) * (a->header.size - 1)); /* +10 ?? */
1152 }
1153
1154
1155 void copy_vftbl(vftbl **dest, vftbl *src)
1156 {
1157     *dest = src;
1158 #if 0
1159     /* XXX this kind of copying does not work (in the general
1160      * case). The interface tables would have to be copied, too. I
1161      * don't see why we should make a copy anyway. -Edwin
1162      */
1163         *dest = mem_alloc(sizeof(vftbl) + sizeof(methodptr)*(src->vftbllength-1));
1164         memcpy(*dest, src, sizeof(vftbl) - sizeof(methodptr));
1165         memcpy(&(*dest)->table, &src->table, src->vftbllength * sizeof(methodptr));
1166 #endif
1167 }
1168
1169
1170 /******************************************************************************************
1171
1172         creates method signature (excluding return type) from array of
1173         class-objects representing the parameters of the method
1174
1175 *******************************************************************************************/
1176
1177
1178 utf *create_methodsig(java_objectarray* types, char *retType)
1179 {
1180     char *buffer;       /* buffer for building the desciptor */
1181     char *pos;          /* current position in buffer */
1182     utf *result;        /* the method signature */
1183     u4 buffer_size = 3; /* minimal size=3: room for parenthesis and returntype */
1184     u4 i, j;
1185
1186     if (!types) return NULL;
1187
1188     /* determine required buffer-size */
1189     for (i = 0; i < types->header.size; i++) {
1190                 classinfo *c = (classinfo *) types->data[i];
1191                 buffer_size  = buffer_size + c->name->blength + 2;
1192     }
1193
1194     if (retType) buffer_size += strlen(retType);
1195
1196     /* allocate buffer */
1197     buffer = MNEW(u1, buffer_size);
1198     pos    = buffer;
1199
1200     /* method-desciptor starts with parenthesis */
1201     *pos++ = '(';
1202
1203     for (i = 0; i < types->header.size; i++) {
1204                 char ch;
1205
1206                 /* current argument */
1207             classinfo *c = (classinfo *) types->data[i];
1208
1209             /* current position in utf-text */
1210             char *utf_ptr = c->name->text;
1211
1212             /* determine type of argument */
1213             if ((ch = utf_nextu2(&utf_ptr)) == '[') {
1214                 /* arrayclass */
1215                 for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1216                                 *pos++ = *utf_ptr; /* copy text */
1217                         }
1218
1219             } else {
1220                         /* check for primitive types */
1221                         for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
1222                                 char *utf_pos   = utf_ptr - 1;
1223                                 char *primitive = primitivetype_table[j].wrapname;
1224
1225                                 /* compare text */
1226                                 while (utf_pos < utf_end(c->name)) {
1227                                         if (*utf_pos++ != *primitive++) goto nomatch;
1228                                 }
1229
1230                                 /* primitive type found */
1231                                 *pos++ = primitivetype_table[j].typesig;
1232                                 goto next_type;
1233
1234                         nomatch:
1235                         }
1236
1237                         /* no primitive type and no arrayclass, so must be object */
1238                         *pos++ = 'L';
1239
1240                         /* copy text */
1241                         for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
1242                                 *pos++ = *utf_ptr;
1243                         }
1244
1245                         *pos++ = ';';
1246
1247                 next_type:
1248                 }
1249     }
1250
1251     *pos++ = ')';
1252
1253     if (retType) {
1254                 for (i = 0; i < strlen(retType); i++) {
1255                         *pos++ = retType[i];
1256                 }
1257     }
1258
1259     /* create utf-string */
1260     result = utf_new(buffer, (pos - buffer));
1261     MFREE(buffer, u1, buffer_size);
1262
1263     return result;
1264 }
1265
1266
1267 /******************************************************************************************
1268
1269         retrieve the next argument or returntype from a descriptor
1270         and return the corresponding class
1271
1272 *******************************************************************************************/
1273
1274 classinfo *get_type(char **utf_ptr,char *desc_end, bool skip)
1275 {
1276     classinfo *c = class_from_descriptor(*utf_ptr,desc_end,utf_ptr,
1277                                          (skip) ? CLASSLOAD_SKIP : CLASSLOAD_LOAD);
1278     if (!c)
1279         /* unknown type */
1280         panic("illegal descriptor");
1281
1282     if (skip) return NULL;
1283
1284     use_class_as_object(c);
1285     return c;
1286 }
1287
1288
1289 /******************************************************************************************
1290
1291         use the descriptor of a method to generate a java/lang/Class array
1292         which contains the classes of the parametertypes of the method
1293
1294 *******************************************************************************************/
1295
1296 java_objectarray* get_parametertypes(methodinfo *m)
1297 {
1298     utf  *descr    =  m->descriptor;    /* method-descriptor */
1299     char *utf_ptr  =  descr->text;      /* current position in utf-text */
1300     char *desc_end =  utf_end(descr);   /* points behind utf string     */
1301     java_objectarray* result;
1302     int parametercount = 0;
1303     int i;
1304
1305     /* skip '(' */
1306     utf_nextu2(&utf_ptr);
1307
1308     /* determine number of parameters */
1309     while ( *utf_ptr != ')' ) {
1310         get_type(&utf_ptr,desc_end,true);
1311         parametercount++;
1312     }
1313
1314     /* create class-array */
1315     result = builtin_anewarray(parametercount, class_java_lang_Class);
1316
1317     utf_ptr  =  descr->text;
1318     utf_nextu2(&utf_ptr);
1319
1320     /* get returntype classes */
1321     for (i = 0; i < parametercount; i++)
1322             result->data[i] = (java_objectheader *) get_type(&utf_ptr,desc_end, false);
1323
1324     return result;
1325 }
1326
1327
1328
1329
1330
1331 /******************************************************************************************
1332
1333         get the exceptions which can be thrown by a method
1334
1335 *******************************************************************************************/
1336
1337 java_objectarray* get_exceptiontypes(methodinfo *m)
1338 {
1339 }
1340
1341
1342
1343
1344
1345 /******************************************************************************************
1346
1347         get the returntype class of a method
1348
1349 *******************************************************************************************/
1350
1351 classinfo *get_returntype(methodinfo *m)
1352 {
1353         char *utf_ptr;   /* current position in utf-text */
1354         char *desc_end;  /* points behind utf string     */
1355         utf *desc = m->descriptor; /* method-descriptor  */
1356
1357         utf_ptr  = desc->text;
1358         desc_end = utf_end(desc);
1359
1360         /* ignore parametertypes */
1361         while ((utf_ptr<desc_end) && utf_nextu2(&utf_ptr)!=')')
1362                 /* skip */ ;
1363
1364         return get_type(&utf_ptr,desc_end, false);
1365 }
1366
1367
1368 /*****************************************************************************/
1369 /*****************************************************************************/
1370
1371
1372 /*--------------------------------------------------------*/
1373 void printNativeCall(nativeCall nc) {
1374   int i,j;
1375
1376   printf("\n%s's Native Methods call:\n",nc.classname); fflush(stdout);
1377   for (i=0; i<nc.methCnt; i++) {
1378       printf("\tMethod=%s %s\n",nc.methods[i].methodname, nc.methods[i].descriptor);fflush(stdout);
1379
1380     for (j=0; j<nc.callCnt[i]; j++) {
1381         printf("\t\t<%i,%i>aCalled = %s %s %s\n",i,j,
1382         nc.methods[i].methodCalls[j].classname,
1383         nc.methods[i].methodCalls[j].methodname,
1384         nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1385       }
1386     }
1387   printf("-+++++--------------------\n");fflush(stdout);
1388 }
1389
1390 /*--------------------------------------------------------*/
1391 void printCompNativeCall(nativeCompCall nc) {
1392   int i,j;
1393   printf("printCompNativeCall BEGIN\n");fflush(stdout);
1394   printf("\n%s's Native Comp Methods call:\n",nc.classname->text);fflush(stdout);
1395   utf_display(nc.classname); fflush(stdout);
1396
1397   for (i=0; i<nc.methCnt; i++) {
1398     printf("\tMethod=%s %s\n",nc.methods[i].methodname->text,nc.methods[i].descriptor->text);fflush(stdout);
1399     utf_display(nc.methods[i].methodname); fflush(stdout);
1400     utf_display(nc.methods[i].descriptor);fflush(stdout);
1401     printf("\n");fflush(stdout);
1402
1403     for (j=0; j<nc.callCnt[i]; j++) {
1404       printf("\t\t<%i,%i>bCalled = ",i,j);fflush(stdout);
1405         utf_display(nc.methods[i].methodCalls[j].classname);fflush(stdout);
1406         utf_display(nc.methods[i].methodCalls[j].methodname); fflush(stdout);
1407         utf_display(nc.methods[i].methodCalls[j].descriptor);fflush(stdout);
1408         printf("\n");fflush(stdout);
1409       }
1410     }
1411 printf("---------------------\n");fflush(stdout);
1412 }
1413
1414
1415 /*--------------------------------------------------------*/
1416 classMeth findNativeMethodCalls(utf *c, utf *m, utf *d )
1417 {
1418     int i = 0;
1419     int j = 0;
1420     int cnt = 0;
1421     classMeth mc;
1422     mc.i_class = i;
1423     mc.j_method = j;
1424     mc.methCnt = cnt;
1425
1426     return mc;
1427 }
1428
1429 /*--------------------------------------------------------*/
1430 nativeCall* findNativeClassCalls(char *aclassname ) {
1431 int i;
1432
1433 for (i=0;i<NATIVECALLSSIZE; i++) {
1434    /* convert table to utf later to speed up search */
1435    if (strcmp(nativeCalls[i].classname, aclassname) == 0)
1436         return &nativeCalls[i];
1437    }
1438
1439 return NULL;
1440 }
1441 /*--------------------------------------------------------*/
1442 /*--------------------------------------------------------*/
1443 void utfNativeCall(nativeCall nc, nativeCompCall *ncc) {
1444   int i,j;
1445
1446
1447   ncc->classname = utf_new_char(nc.classname);
1448   ncc->methCnt = nc.methCnt;
1449
1450   for (i=0; i<nc.methCnt; i++) {
1451     ncc->methods[i].methodname = utf_new_char(nc.methods[i].methodname);
1452     ncc->methods[i].descriptor = utf_new_char(nc.methods[i].descriptor);
1453     ncc->callCnt[i] = nc.callCnt[i];
1454
1455     for (j=0; j<nc.callCnt[i]; j++) {
1456
1457         ncc->methods[i].methodCalls[j].classname  = utf_new_char(nc.methods[i].methodCalls[j].classname);
1458
1459         if (strcmp("", nc.methods[i].methodCalls[j].methodname) != 0) {
1460           ncc->methods[i].methodCalls[j].methodname = utf_new_char(nc.methods[i].methodCalls[j].methodname);
1461           ncc->methods[i].methodCalls[j].descriptor = utf_new_char(nc.methods[i].methodCalls[j].descriptor);
1462           }
1463         else {
1464           ncc->methods[i].methodCalls[j].methodname = NULL;
1465           ncc->methods[i].methodCalls[j].descriptor = NULL;
1466           }
1467       }
1468     }
1469 }
1470
1471
1472
1473 /*--------------------------------------------------------*/
1474
1475 bool natcall2utf(bool natcallcompdone) {
1476 int i;
1477
1478 if (natcallcompdone)
1479         return true;
1480
1481 for (i=0;i<NATIVECALLSSIZE; i++) {
1482    utfNativeCall  (nativeCalls[i], &nativeCompCalls[i]);
1483    }
1484
1485 return true;
1486 }
1487 /*--------------------------------------------------------*/
1488
1489
1490 /*
1491  * These are local overrides for various environment variables in Emacs.
1492  * Please do not remove this and leave it at the end of the file, where
1493  * Emacs will automagically detect them.
1494  * ---------------------------------------------------------------------
1495  * Local variables:
1496  * mode: c
1497  * indent-tabs-mode: t
1498  * c-basic-offset: 4
1499  * tab-width: 4
1500  * End:
1501  */