scheduler/process.c

   1 /*
   2  * Win32 processes
   3  *
   4  * Copyright 1996, 1998 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <fcntl.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <unistd.h>
  13 #include "wine/winbase16.h"
  14 #include "wine/exception.h"
  15 #include "process.h"
  16 #include "main.h"
  17 #include "module.h"
  18 #include "neexe.h"
  19 #include "file.h"
  20 #include "global.h"
  21 #include "heap.h"
  22 #include "task.h"
  23 #include "ldt.h"
  24 #include "syslevel.h"
  25 #include "thread.h"
  26 #include "winerror.h"
  27 #include "pe_image.h"
  28 #include "server.h"
  29 #include "options.h"
  30 #include "callback.h"
  31 #include "debugtools.h"
  32
  33 DEFAULT_DEBUG_CHANNEL(process);
  34 DECLARE_DEBUG_CHANNEL(relay);
  35 DECLARE_DEBUG_CHANNEL(win32);
  36
  37
  38 /* The initial process PDB */
  39 static PDB initial_pdb;
  40 static ENVDB initial_envdb;
  41 static STARTUPINFOA initial_startup;
  42
  43 static PDB *PROCESS_First = &initial_pdb;
  44
  45
  46 /***********************************************************************
  47  *           PROCESS_WalkProcess
  48  */
  49 void PROCESS_WalkProcess(void)
  50 {
  51     PDB  *pdb;
  52     char *name;
  53
  54     pdb = PROCESS_First;
  55     MESSAGE( " pid        PDB         #th  modref     module \n" );
  56     while(pdb)
  57     {
  58         if (pdb == &initial_pdb)
  59             name = "initial PDB";
  60         else
  61             name = (pdb->exe_modref) ? pdb->exe_modref->filename : "";
  62
  63         MESSAGE( " %8p %8p %5d  %8p %s\n", pdb->server_pid, pdb,
  64                pdb->threads, pdb->exe_modref, name);
  65         pdb = pdb->next;
  66     }
  67     return;
  68 }
  69
  70
  71 /***********************************************************************
  72  *           PROCESS_IdToPDB
  73  *
  74  * Convert a process id to a PDB, making sure it is valid.
  75  */
  76 PDB *PROCESS_IdToPDB( DWORD pid )
  77 {
  78     PDB *pdb;
  79
  80     if (!pid) return PROCESS_Current();
  81     pdb = PROCESS_First;
  82     while (pdb)
  83     {
  84         if ((DWORD)pdb->server_pid == pid) return pdb;
  85         pdb = pdb->next;
  86     }
  87     SetLastError( ERROR_INVALID_PARAMETER );
  88     return NULL;
  89 }
  90
  91
  92 /***********************************************************************
  93  *           PROCESS_CallUserSignalProc
  94  *
  95  * FIXME:  Some of the signals aren't sent correctly!
  96  *
  97  * The exact meaning of the USER signals is undocumented, but this
  98  * should cover the basic idea:
  99  *
 100  * USIG_DLL_UNLOAD_WIN16
 101  *     This is sent when a 16-bit module is unloaded.
 102  *
 103  * USIG_DLL_UNLOAD_WIN32
 104  *     This is sent when a 32-bit module is unloaded.
 105  *
 106  * USIG_DLL_UNLOAD_ORPHANS
 107  *     This is sent after the last Win3.1 module is unloaded,
 108  *     to allow removal of orphaned menus.
 109  *
 110  * USIG_FAULT_DIALOG_PUSH
 111  * USIG_FAULT_DIALOG_POP
 112  *     These are called to allow USER to prepare for displaying a
 113  *     fault dialog, even though the fault might have happened while
 114  *     inside a USER critical section.
 115  *
 116  * USIG_THREAD_INIT
 117  *     This is called from the context of a new thread, as soon as it
 118  *     has started to run.
 119  *
 120  * USIG_THREAD_EXIT
 121  *     This is called, still in its context, just before a thread is
 122  *     about to terminate.
 123  *
 124  * USIG_PROCESS_CREATE
 125  *     This is called, in the parent process context, after a new process
 126  *     has been created.
 127  *
 128  * USIG_PROCESS_INIT
 129  *     This is called in the new process context, just after the main thread
 130  *     has started execution (after the main thread's USIG_THREAD_INIT has
 131  *     been sent).
 132  *
 133  * USIG_PROCESS_LOADED
 134  *     This is called after the executable file has been loaded into the
 135  *     new process context.
 136  *
 137  * USIG_PROCESS_RUNNING
 138  *     This is called immediately before the main entry point is called.
 139  *
 140  * USIG_PROCESS_EXIT
 141  *     This is called in the context of a process that is about to
 142  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 143  *     been sent).
 144  *
 145  * USIG_PROCESS_DESTROY
 146  *     This is called after a process has terminated.
 147  *
 148  *
 149  * The meaning of the dwFlags bits is as follows:
 150  *
 151  * USIG_FLAGS_WIN32
 152  *     Current process is 32-bit.
 153  *
 154  * USIG_FLAGS_GUI
 155  *     Current process is a (Win32) GUI process.
 156  *
 157  * USIG_FLAGS_FEEDBACK
 158  *     Current process needs 'feedback' (determined from the STARTUPINFO
 159  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 160  *
 161  * USIG_FLAGS_FAULT
 162  *     The signal is being sent due to a fault.
 163  */
 164 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 165 {
 166     DWORD flags = PROCESS_Current()->flags;
 167     DWORD startup_flags = PROCESS_Current()->env_db->startup_info->dwFlags;
 168     DWORD dwFlags = 0;
 169
 170     /* Determine dwFlags */
 171
 172     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 173
 174     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 175
 176     if ( dwFlags & USIG_FLAGS_GUI )
 177     {
 178         /* Feedback defaults to ON */
 179         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 180             dwFlags |= USIG_FLAGS_FEEDBACK;
 181     }
 182     else
 183     {
 184         /* Feedback defaults to OFF */
 185         if (startup_flags & STARTF_FORCEONFEEDBACK)
 186             dwFlags |= USIG_FLAGS_FEEDBACK;
 187     }
 188
 189     /* Convert module handle to 16-bit */
 190
 191     if ( HIWORD( hModule ) )
 192         hModule = MapHModuleLS( hModule );
 193
 194     /* Call USER signal proc */
 195
 196     if ( Callout.UserSignalProc )
 197     {
 198         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 199             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 200         else
 201             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 202     }
 203 }
 204
 205 /***********************************************************************
 206  *           PROCESS_CreateEnvDB
 207  *
 208  * Create the env DB for a newly started process.
 209  */
 210 static BOOL PROCESS_CreateEnvDB(void)
 211 {
 212     struct init_process_request *req = get_req_buffer();
 213     STARTUPINFOA *startup;
 214     ENVDB *env_db;
 215     char cmd_line[4096];
 216     PDB *pdb = PROCESS_Current();
 217
 218     /* Allocate the env DB */
 219
 220     if (!(env_db = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ENVDB) )))
 221         return FALSE;
 222     pdb->env_db = env_db;
 223     InitializeCriticalSection( &env_db->section );
 224
 225     /* Allocate and fill the startup info */
 226     if (!(startup = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(STARTUPINFOA) )))
 227         return FALSE;
 228     env_db->startup_info = startup;
 229
 230     /* Retrieve startup info from the server */
 231
 232     req->ldt_copy  = ldt_copy;
 233     req->ldt_flags = ldt_flags_copy;
 234     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 235     pdb->exe_file        = req->exe_file;
 236     startup->dwFlags     = req->start_flags;
 237     startup->wShowWindow = req->cmd_show;
 238     env_db->hStdin  = startup->hStdInput  = req->hstdin;
 239     env_db->hStdout = startup->hStdOutput = req->hstdout;
 240     env_db->hStderr = startup->hStdError  = req->hstderr;
 241     lstrcpynA( cmd_line, req->cmdline, sizeof(cmd_line) );
 242
 243     /* Copy the parent environment */
 244
 245     if (!ENV_InheritEnvironment( req->env_ptr )) return FALSE;
 246
 247     /* Copy the command line */
 248
 249     if (!(pdb->env_db->cmd_line = HEAP_strdupA( GetProcessHeap(), 0, cmd_line )))
 250         return FALSE;
 251
 252     return TRUE;
 253 }
 254
 255
 256 /***********************************************************************
 257  *           PROCESS_FreePDB
 258  *
 259  * Free a PDB and all associated storage.
 260  */
 261 void PROCESS_FreePDB( PDB *pdb )
 262 {
 263     PDB **pptr = &PROCESS_First;
 264
 265     ENV_FreeEnvironment( pdb );
 266     while (*pptr && (*pptr != pdb)) pptr = &(*pptr)->next;
 267     if (*pptr) *pptr = pdb->next;
 268     HeapFree( GetProcessHeap(), 0, pdb );
 269 }
 270
 271
 272 /***********************************************************************
 273  *           PROCESS_CreatePDB
 274  *
 275  * Allocate and fill a PDB structure.
 276  * Runs in the context of the parent process.
 277  */
 278 static PDB *PROCESS_CreatePDB( PDB *parent, BOOL inherit )
 279 {
 280     PDB *pdb = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(PDB) );
 281
 282     if (!pdb) return NULL;
 283     pdb->exit_code       = STILL_ACTIVE;
 284     pdb->heap            = GetProcessHeap();
 285     pdb->threads         = 1;
 286     pdb->running_threads = 1;
 287     pdb->ring0_threads   = 1;
 288     pdb->parent          = parent;
 289     pdb->group           = pdb;
 290     pdb->priority        = 8;  /* Normal */
 291     pdb->next            = PROCESS_First;
 292     pdb->winver          = 0xffff; /* to be determined */
 293     pdb->main_queue      = INVALID_HANDLE_VALUE16;
 294     PROCESS_First = pdb;
 295     return pdb;
 296 }
 297
 298
 299 /***********************************************************************
 300  *           PROCESS_Init
 301  */
 302 BOOL PROCESS_Init( BOOL win32 )
 303 {
 304     struct init_process_request *req;
 305     TEB *teb;
 306     int server_fd;
 307
 308     /* Start the server */
 309     server_fd = CLIENT_InitServer();
 310
 311     /* Fill the initial process structure */
 312     initial_pdb.exit_code       = STILL_ACTIVE;
 313     initial_pdb.threads         = 1;
 314     initial_pdb.running_threads = 1;
 315     initial_pdb.ring0_threads   = 1;
 316     initial_pdb.env_db          = &initial_envdb;
 317     initial_pdb.group           = &initial_pdb;
 318     initial_pdb.priority        = 8;  /* Normal */
 319     initial_pdb.flags           = win32? 0 : PDB32_WIN16_PROC;
 320     initial_pdb.winver          = 0xffff; /* to be determined */
 321     initial_pdb.main_queue      = INVALID_HANDLE_VALUE16;
 322     initial_envdb.startup_info  = &initial_startup;
 323
 324     /* Initialize virtual memory management */
 325     if (!VIRTUAL_Init()) return FALSE;
 326
 327     /* Create the initial thread structure and socket pair */
 328     if (!(teb = THREAD_CreateInitialThread( &initial_pdb, server_fd ))) return FALSE;
 329
 330     /* Remember TEB selector of initial process for emergency use */
 331     SYSLEVEL_EmergencyTeb = teb->teb_sel;
 332
 333     /* Create the system and process heaps */
 334     if (!HEAP_CreateSystemHeap()) return FALSE;
 335     initial_pdb.heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 336
 337     /* Create the idle event for the initial process
 338        FIXME 1: Shouldn't we call UserSignalProc for the initial process too?
 339        FIXME 2: It seems to me that the initial pdb becomes never freed, so I don't now
 340                 where to release the idle event for the initial process.
 341     */
 342     initial_pdb.idle_event = CreateEventA ( NULL, TRUE, FALSE, NULL );
 343     initial_pdb.idle_event = ConvertToGlobalHandle ( initial_pdb.idle_event );
 344
 345     /* Initialize signal handling */
 346     if (!SIGNAL_Init()) return FALSE;
 347
 348     /* Retrieve startup info from the server */
 349     req = get_req_buffer();
 350     req->ldt_copy  = ldt_copy;
 351     req->ldt_flags = ldt_flags_copy;
 352     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 353     initial_pdb.exe_file        = req->exe_file;
 354     initial_startup.dwFlags     = req->start_flags;
 355     initial_startup.wShowWindow = req->cmd_show;
 356     initial_envdb.hStdin   = initial_startup.hStdInput  = req->hstdin;
 357     initial_envdb.hStdout  = initial_startup.hStdOutput = req->hstdout;
 358     initial_envdb.hStderr  = initial_startup.hStdError  = req->hstderr;
 359     initial_envdb.cmd_line = "";
 360
 361     /* Copy the parent environment */
 362     if (!ENV_InheritEnvironment( NULL )) return FALSE;
 363
 364     /* Create the SEGPTR heap */
 365     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 366
 367     /* Initialize the critical sections */
 368     InitializeCriticalSection( &initial_pdb.crit_section );
 369     InitializeCriticalSection( &initial_envdb.section );
 370
 371     return TRUE;
 372 }
 373
 374
 375 /***********************************************************************
 376  *           start_process
 377  *
 378  * Startup routine of a new Win32 process. Runs on the new process stack.
 379  */
 380 static void start_process(void)
 381 {
 382     struct init_process_done_request *req = get_req_buffer();
 383     int debugged;
 384     HMODULE16 hModule16;
 385     UINT cmdShow = SW_SHOWNORMAL;
 386     LPTHREAD_START_ROUTINE entry;
 387     PDB *pdb = PROCESS_Current();
 388     HMODULE main_module = pdb->exe_modref->module;
 389
 390     /* Increment EXE refcount */
 391     pdb->exe_modref->refCount++;
 392
 393     /* Retrieve entry point address */
 394     entry = (LPTHREAD_START_ROUTINE)RVA_PTR( main_module, OptionalHeader.AddressOfEntryPoint );
 395
 396     /* Create 16-bit dummy module */
 397     if ((hModule16 = MODULE_CreateDummyModule( pdb->exe_modref->filename, main_module )) < 32)
 398         ExitProcess( hModule16 );
 399
 400     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 401         cmdShow = pdb->env_db->startup_info->wShowWindow;
 402     if (!TASK_Create( (NE_MODULE *)GlobalLock16( hModule16 ), cmdShow )) goto error;
 403
 404     /* Signal the parent process to continue */
 405     req->module = (void *)main_module;
 406     req->entry  = entry;
 407     server_call( REQ_INIT_PROCESS_DONE );
 408     debugged = req->debugged;
 409
 410     if (pdb->flags & PDB32_CONSOLE_PROC) AllocConsole();
 411
 412     /* Load system DLLs into the initial process (and initialize them) */
 413     if (!LoadLibraryA( "KERNEL32" )) goto error;
 414     if (!LoadLibraryA( "x11drv" )) goto error;
 415
 416     if (   !LoadLibrary16("GDI.EXE" ) || !LoadLibraryA("GDI32.DLL" )
 417         || !LoadLibrary16("USER.EXE") || !LoadLibraryA("USER32.DLL"))
 418         goto error;
 419
 420     /* Get pointers to USER routines called by KERNEL */
 421     THUNK_InitCallout();
 422
 423     /* Call FinalUserInit routine */
 424     Callout.FinalUserInit16();
 425
 426     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 427      *       context of the parent process.  Actually, the USER signal proc
 428      *       doesn't really care about that, but it *does* require that the
 429      *       startup parameters are correctly set up, so that GetProcessDword
 430      *       works.  Furthermore, before calling the USER signal proc the
 431      *       16-bit stack must be set up, which it is only after TASK_Create
 432      *       in the case of a 16-bit process. Thus, we send the signal here.
 433      */
 434
 435     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 436     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 437     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 438     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 439
 440     EnterCriticalSection( &pdb->crit_section );
 441     PE_InitTls();
 442     MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 443     LeaveCriticalSection( &pdb->crit_section );
 444
 445     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 446     if (pdb->flags & PDB32_CONSOLE_PROC)
 447         PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 448
 449     TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 450     if (debugged) DbgBreakPoint();
 451     /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 452      * Dunno about other OSs */
 453     ExitProcess( entry(NULL) );
 454
 455  error:
 456     ExitProcess( GetLastError() );
 457 }
 458
 459
 460 /***********************************************************************
 461  *           PROCESS_Init32
 462  *
 463  * Initialisation of a new Win32 process.
 464  */
 465 void PROCESS_Init32( HFILE hFile, LPCSTR filename, LPCSTR cmd_line )
 466 {
 467     WORD version;
 468     HMODULE main_module;
 469     PDB *pdb = PROCESS_Current();
 470
 471     pdb->env_db->cmd_line = HEAP_strdupA( GetProcessHeap(), 0, cmd_line );
 472
 473     /* load main module */
 474     if ((main_module = PE_LoadImage( hFile, filename, &version )) < 32)
 475         ExitProcess( main_module );
 476 #if 0
 477     if (PE_HEADER(main_module)->FileHeader.Characteristics & IMAGE_FILE_DLL)
 478     {
 479         SetLastError( 20 );  /* FIXME: not the right error code */
 480         goto error;
 481     }
 482 #endif
 483
 484     /* Create 32-bit MODREF */
 485     if (!PE_CreateModule( main_module, filename, 0, FALSE )) goto error;
 486
 487     /* allocate main thread stack */
 488     if (!THREAD_InitStack( NtCurrentTeb(), pdb,
 489                            PE_HEADER(main_module)->OptionalHeader.SizeOfStackReserve, TRUE ))
 490         goto error;
 491
 492     SIGNAL_Init();  /* reinitialize signal stack */
 493
 494     /* switch to the new stack */
 495     CALL32_Init( &IF1632_CallLargeStack, start_process, NtCurrentTeb()->stack_top );
 496  error:
 497     ExitProcess( GetLastError() );
 498 }
 499
 500
 501 /***********************************************************************
 502  *           PROCESS_InitWinelib
 503  *
 504  * Initialisation of a new Winelib process.
 505  */
 506 void PROCESS_InitWinelib( int argc, char *argv[] )
 507 {
 508     PDB *pdb;
 509     HMODULE main_module;
 510     LPCSTR filename;
 511     LPSTR cmdline, p;
 512     int i, len = 0;
 513
 514     if (!MAIN_MainInit( argc, argv, TRUE )) exit(1);
 515     pdb = PROCESS_Current();
 516
 517     /* build command-line */
 518     for (i = 0; Options.argv[i]; i++) len += strlen(Options.argv[i]) + 1;
 519     if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, len ))) goto error;
 520     for (p = cmdline, i = 0; Options.argv[i]; i++)
 521     {
 522         strcpy( p, Options.argv[i] );
 523         p += strlen(p);
 524         *p++ = ' ';
 525     }
 526     if (p > cmdline) p--;
 527     *p = 0;
 528     pdb->env_db->cmd_line = cmdline;
 529
 530     /* create 32-bit module for main exe */
 531     if ((main_module = BUILTIN32_LoadExeModule( &filename )) < 32 ) goto error;
 532
 533     /* Create 32-bit MODREF */
 534     if (!PE_CreateModule( main_module, filename, 0, FALSE )) goto error;
 535
 536     /* allocate main thread stack */
 537     if (!THREAD_InitStack( NtCurrentTeb(), pdb,
 538                            PE_HEADER(main_module)->OptionalHeader.SizeOfStackReserve, TRUE ))
 539         goto error;
 540
 541     SIGNAL_Init();  /* reinitialize signal stack */
 542
 543     /* switch to the new stack */
 544     CALL32_Init( &IF1632_CallLargeStack, start_process, NtCurrentTeb()->stack_top );
 545  error:
 546     ExitProcess( GetLastError() );
 547 }
 548
 549
 550 /***********************************************************************
 551  *           PROCESS_Start
 552  *
 553  * Startup routine of a new process. Called in the context of the new process.
 554  */
 555 void PROCESS_Start(void)
 556 {
 557     struct init_process_done_request *req = get_req_buffer();
 558     int debugged;
 559     UINT cmdShow = SW_SHOWNORMAL;
 560     LPTHREAD_START_ROUTINE entry = NULL;
 561     PDB *pdb = PROCESS_Current();
 562     NE_MODULE *pModule = NE_GetPtr( pdb->module );
 563     LPCSTR filename = ((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName;
 564
 565     /* Get process type */
 566     enum { PROC_DOS, PROC_WIN16, PROC_WIN32 } type;
 567     if ( pdb->flags & PDB32_DOS_PROC )
 568         type = PROC_DOS;
 569     else if ( pdb->flags & PDB32_WIN16_PROC )
 570         type = PROC_WIN16;
 571     else
 572         type = PROC_WIN32;
 573
 574     /* Initialize the critical section */
 575     InitializeCriticalSection( &pdb->crit_section );
 576
 577     /* Create the environment db */
 578     if (!PROCESS_CreateEnvDB()) goto error;
 579
 580     /* Create a task for this process */
 581     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 582         cmdShow = pdb->env_db->startup_info->wShowWindow;
 583     if (!TASK_Create( pModule, cmdShow ))
 584         goto error;
 585
 586     /* Load all process modules */
 587     switch ( type )
 588     {
 589     case PROC_WIN16:
 590         if ( !NE_InitProcess( pModule ) )
 591             goto error;
 592         break;
 593
 594     case PROC_WIN32:
 595         /* Create 32-bit MODREF */
 596         if ( !PE_CreateModule( pModule->module32, filename, 0, FALSE ) )
 597             goto error;
 598
 599         /* Increment EXE refcount */
 600         assert( pdb->exe_modref );
 601         pdb->exe_modref->refCount++;
 602
 603         /* Retrieve entry point address */
 604         entry = (LPTHREAD_START_ROUTINE)RVA_PTR(pModule->module32,
 605                                                 OptionalHeader.AddressOfEntryPoint);
 606         break;
 607
 608     case PROC_DOS:
 609         /* FIXME: move DOS startup code here */
 610         break;
 611     }
 612
 613
 614     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 615      *       context of the parent process.  Actually, the USER signal proc
 616      *       doesn't really care about that, but it *does* require that the
 617      *       startup parameters are correctly set up, so that GetProcessDword
 618      *       works.  Furthermore, before calling the USER signal proc the
 619      *       16-bit stack must be set up, which it is only after TASK_Create
 620      *       in the case of a 16-bit process. Thus, we send the signal here.
 621      */
 622
 623     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 624     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 625     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 626     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 627
 628     /* Signal the parent process to continue */
 629     req->module = (void *)pModule->module32;
 630     req->entry  = entry;
 631     server_call( REQ_INIT_PROCESS_DONE );
 632     debugged = req->debugged;
 633
 634     if ( (pdb->flags & PDB32_CONSOLE_PROC) || (pdb->flags & PDB32_DOS_PROC) )
 635         AllocConsole();
 636
 637     /* Perform Win32 specific process initialization */
 638     if ( type == PROC_WIN32 )
 639     {
 640         EnterCriticalSection( &pdb->crit_section );
 641
 642         PE_InitTls();
 643         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 644
 645         LeaveCriticalSection( &pdb->crit_section );
 646     }
 647
 648     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 649     if ( type != PROC_WIN16 && (pdb->flags & PDB32_CONSOLE_PROC))
 650         PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 651
 652     switch ( type )
 653     {
 654     case PROC_DOS:
 655         TRACE_(relay)( "Starting DOS process\n" );
 656         DOSVM_Enter( NULL );
 657         ERR_(relay)( "DOSVM_Enter returned; should not happen!\n" );
 658         ExitProcess( 0 );
 659
 660     case PROC_WIN16:
 661         TRACE_(relay)( "Starting Win16 process\n" );
 662         TASK_CallToStart();
 663         ERR_(relay)( "TASK_CallToStart returned; should not happen!\n" );
 664         ExitProcess( 0 );
 665
 666     case PROC_WIN32:
 667         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 668         if (debugged) DbgBreakPoint();
 669         /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 670          * Dunno about other OSs */
 671         ExitProcess( entry(NULL) );
 672     }
 673
 674  error:
 675     ExitProcess( GetLastError() );
 676 }
 677
 678
 679 /***********************************************************************
 680  *           PROCESS_Create
 681  *
 682  * Create a new process database and associated info.
 683  */
 684 PDB *PROCESS_Create( NE_MODULE *pModule, HFILE hFile, LPCSTR cmd_line, LPCSTR env,
 685                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 686                      BOOL inherit, DWORD flags, STARTUPINFOA *startup,
 687                      PROCESS_INFORMATION *info )
 688 {
 689     HANDLE handles[2], load_done_evt = -1;
 690     DWORD exitcode, size;
 691     BOOL alloc_stack16;
 692     int fd = -1;
 693     struct new_process_request *req = get_req_buffer();
 694     TEB *teb = NULL;
 695     PDB *parent = PROCESS_Current();
 696     PDB *pdb = PROCESS_CreatePDB( parent, inherit );
 697
 698     if (!pdb) return NULL;
 699     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 700
 701     /* Create the process on the server side */
 702
 703     req->pinherit     = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 704     req->tinherit     = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 705     req->inherit_all  = 2 /*inherit*/;  /* HACK! */
 706     req->create_flags = flags;
 707     req->start_flags  = startup->dwFlags;
 708     req->exe_file     = hFile;
 709     if (startup->dwFlags & STARTF_USESTDHANDLES)
 710     {
 711         req->hstdin  = startup->hStdInput;
 712         req->hstdout = startup->hStdOutput;
 713         req->hstderr = startup->hStdError;
 714     }
 715     else
 716     {
 717         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 718         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 719         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 720     }
 721     req->cmd_show = startup->wShowWindow;
 722     req->env_ptr = (void*)env;  /* FIXME: hack */
 723     lstrcpynA( req->cmdline, cmd_line, server_remaining(req->cmdline) );
 724     if (server_call_fd( REQ_NEW_PROCESS, -1, &fd )) goto error;
 725     pdb->server_pid   = req->pid;
 726     info->hProcess    = req->phandle;
 727     info->dwProcessId = (DWORD)req->pid;
 728     info->hThread     = req->thandle;
 729     info->dwThreadId  = (DWORD)req->tid;
 730     load_done_evt     = req->event;
 731
 732     if (pModule->module32)   /* Win32 process */
 733     {
 734         IMAGE_OPTIONAL_HEADER *header = &PE_HEADER(pModule->module32)->OptionalHeader;
 735         size = header->SizeOfStackReserve;
 736         if (header->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
 737             pdb->flags |= PDB32_CONSOLE_PROC;
 738         alloc_stack16 = TRUE;
 739     }
 740     else if (!pModule->dos_image) /* Win16 process */
 741     {
 742         alloc_stack16 = FALSE;
 743         size = 0;
 744         pdb->flags |= PDB32_WIN16_PROC;
 745     }
 746     else  /* DOS process */
 747     {
 748         alloc_stack16 = FALSE;
 749         size = 0;
 750         pdb->flags |= PDB32_DOS_PROC;
 751     }
 752
 753     /* Create the main thread */
 754
 755     if (!(teb = THREAD_Create( pdb, req->pid, req->tid, fd, size, alloc_stack16 ))) goto error;
 756     teb->startup = PROCESS_Start;
 757     fd = -1;  /* don't close it */
 758
 759     /* Pass module to new process (FIXME: hack) */
 760     pdb->module = pModule->self;
 761     SYSDEPS_SpawnThread( teb );
 762
 763     /* Wait until process is initialized (or initialization failed) */
 764     handles[0] = info->hProcess;
 765     handles[1] = load_done_evt;
 766
 767     switch ( WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) )
 768     {
 769     default:
 770         ERR( "WaitForMultipleObjects failed\n" );
 771         break;
 772
 773     case 0:
 774         /* Child initialization code returns error condition as exitcode */
 775         if ( GetExitCodeProcess( info->hProcess, &exitcode ) )
 776             SetLastError( exitcode );
 777         goto error;
 778
 779     case 1:
 780         /* Get 16-bit task up and running */
 781         if ( pdb->flags & PDB32_WIN16_PROC )
 782         {
 783             /* Post event to start the task */
 784             PostEvent16( pdb->task );
 785
 786             /* If we ourselves are a 16-bit task, we Yield() directly. */
 787             if ( parent->flags & PDB32_WIN16_PROC )
 788                 OldYield16();
 789         }
 790         break;
 791     }
 792
 793     CloseHandle( load_done_evt );
 794     return pdb;
 795
 796 error:
 797     if (load_done_evt != -1) CloseHandle( load_done_evt );
 798     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 799     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 800     PROCESS_FreePDB( pdb );
 801     if (fd != -1) close( fd );
 802     return NULL;
 803 }
 804
 805
 806 /***********************************************************************
 807  *           ExitProcess   (KERNEL32.100)
 808  */
 809 void WINAPI ExitProcess( DWORD status )
 810 {
 811     struct terminate_process_request *req = get_req_buffer();
 812
 813     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 814     TASK_KillTask( 0 );
 815
 816     /* send the exit code to the server */
 817     req->handle    = GetCurrentProcess();
 818     req->exit_code = status;
 819     server_call( REQ_TERMINATE_PROCESS );
 820     /* FIXME: need separate address spaces for that */
 821     /* exit( status ); */
 822     SYSDEPS_ExitThread( status );
 823 }
 824
 825 /***********************************************************************
 826  *           ExitProcess16   (KERNEL.466)
 827  */
 828 void WINAPI ExitProcess16( WORD status )
 829 {
 830     SYSLEVEL_ReleaseWin16Lock();
 831     ExitProcess( status );
 832 }
 833
 834 /******************************************************************************
 835  *           TerminateProcess   (KERNEL32.684)
 836  */
 837 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 838 {
 839     BOOL ret;
 840     struct terminate_process_request *req = get_req_buffer();
 841     req->handle    = handle;
 842     req->exit_code = exit_code;
 843     if ((ret = !server_call( REQ_TERMINATE_PROCESS )) && req->self) exit( exit_code );
 844     return ret;
 845 }
 846
 847
 848 /***********************************************************************
 849  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 850  * 'Of course you cannot directly access Windows internal structures'
 851  */
 852 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 853 {
 854     PDB *process = PROCESS_IdToPDB( dwProcessID );
 855     TDB *pTask;
 856     DWORD x, y;
 857
 858     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 859     if ( !process ) return 0;
 860
 861     switch ( offset )
 862     {
 863     case GPD_APP_COMPAT_FLAGS:
 864         pTask = (TDB *)GlobalLock16( process->task );
 865         return pTask? pTask->compat_flags : 0;
 866
 867     case GPD_LOAD_DONE_EVENT:
 868         return process->load_done_evt;
 869
 870     case GPD_HINSTANCE16:
 871         pTask = (TDB *)GlobalLock16( process->task );
 872         return pTask? pTask->hInstance : 0;
 873
 874     case GPD_WINDOWS_VERSION:
 875         pTask = (TDB *)GlobalLock16( process->task );
 876         return pTask? pTask->version : 0;
 877
 878     case GPD_THDB:
 879         if ( process != PROCESS_Current() ) return 0;
 880         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 881
 882     case GPD_PDB:
 883         return (DWORD)process;
 884
 885     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 886         return process->env_db->startup_info->hStdOutput;
 887
 888     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 889         return process->env_db->startup_info->hStdInput;
 890
 891     case GPD_STARTF_SHOWWINDOW:
 892         return process->env_db->startup_info->wShowWindow;
 893
 894     case GPD_STARTF_SIZE:
 895         x = process->env_db->startup_info->dwXSize;
 896         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 897         y = process->env_db->startup_info->dwYSize;
 898         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 899         return MAKELONG( x, y );
 900
 901     case GPD_STARTF_POSITION:
 902         x = process->env_db->startup_info->dwX;
 903         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 904         y = process->env_db->startup_info->dwY;
 905         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 906         return MAKELONG( x, y );
 907
 908     case GPD_STARTF_FLAGS:
 909         return process->env_db->startup_info->dwFlags;
 910
 911     case GPD_PARENT:
 912         return process->parent? (DWORD)process->parent->server_pid : 0;
 913
 914     case GPD_FLAGS:
 915         return process->flags;
 916
 917     case GPD_USERDATA:
 918         return process->process_dword;
 919
 920     default:
 921         ERR_(win32)("Unknown offset %d\n", offset );
 922         return 0;
 923     }
 924 }
 925
 926 /***********************************************************************
 927  *           SetProcessDword    (KERNEL.484)
 928  * 'Of course you cannot directly access Windows internal structures'
 929  */
 930 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 931 {
 932     PDB *process = PROCESS_IdToPDB( dwProcessID );
 933
 934     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 935     if ( !process ) return;
 936
 937     switch ( offset )
 938     {
 939     case GPD_APP_COMPAT_FLAGS:
 940     case GPD_LOAD_DONE_EVENT:
 941     case GPD_HINSTANCE16:
 942     case GPD_WINDOWS_VERSION:
 943     case GPD_THDB:
 944     case GPD_PDB:
 945     case GPD_STARTF_SHELLDATA:
 946     case GPD_STARTF_HOTKEY:
 947     case GPD_STARTF_SHOWWINDOW:
 948     case GPD_STARTF_SIZE:
 949     case GPD_STARTF_POSITION:
 950     case GPD_STARTF_FLAGS:
 951     case GPD_PARENT:
 952     case GPD_FLAGS:
 953         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 954         break;
 955
 956     case GPD_USERDATA:
 957         process->process_dword = value;
 958         break;
 959
 960     default:
 961         ERR_(win32)("Unknown offset %d\n", offset );
 962         break;
 963     }
 964 }
 965
 966
 967 /*********************************************************************
 968  *           OpenProcess   (KERNEL32.543)
 969  */
 970 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 971 {
 972     HANDLE ret = 0;
 973     struct open_process_request *req = get_req_buffer();
 974
 975     req->pid     = (void *)id;
 976     req->access  = access;
 977     req->inherit = inherit;
 978     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 979     return ret;
 980 }
 981
 982 /*********************************************************************
 983  *           MapProcessHandle   (KERNEL.483)
 984  */
 985 DWORD WINAPI MapProcessHandle( HANDLE handle )
 986 {
 987     DWORD ret = 0;
 988     struct get_process_info_request *req = get_req_buffer();
 989     req->handle = handle;
 990     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
 991     return ret;
 992 }
 993
 994 /***********************************************************************
 995  *           GetThreadLocale    (KERNEL32.295)
 996  */
 997 LCID WINAPI GetThreadLocale(void)
 998 {
 999     return PROCESS_Current()->locale;
1000 }
1001
1002
1003 /***********************************************************************
1004  *           SetPriorityClass   (KERNEL32.503)
1005  */
1006 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
1007 {
1008     struct set_process_info_request *req = get_req_buffer();
1009     req->handle   = hprocess;
1010     req->priority = priorityclass;
1011     req->mask     = SET_PROCESS_INFO_PRIORITY;
1012     return !server_call( REQ_SET_PROCESS_INFO );
1013 }
1014
1015
1016 /***********************************************************************
1017  *           GetPriorityClass   (KERNEL32.250)
1018  */
1019 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
1020 {
1021     DWORD ret = 0;
1022     struct get_process_info_request *req = get_req_buffer();
1023     req->handle = hprocess;
1024     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
1025     return ret;
1026 }
1027
1028
1029 /***********************************************************************
1030  *          SetProcessAffinityMask   (KERNEL32.662)
1031  */
1032 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
1033 {
1034     struct set_process_info_request *req = get_req_buffer();
1035     req->handle   = hProcess;
1036     req->affinity = affmask;
1037     req->mask     = SET_PROCESS_INFO_AFFINITY;
1038     return !server_call( REQ_SET_PROCESS_INFO );
1039 }
1040
1041 /**********************************************************************
1042  *          GetProcessAffinityMask    (KERNEL32.373)
1043  */
1044 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
1045                                       LPDWORD lpProcessAffinityMask,
1046                                       LPDWORD lpSystemAffinityMask )
1047 {
1048     BOOL ret = FALSE;
1049     struct get_process_info_request *req = get_req_buffer();
1050     req->handle = hProcess;
1051     if (!server_call( REQ_GET_PROCESS_INFO ))
1052     {
1053         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
1054         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
1055         ret = TRUE;
1056     }
1057     return ret;
1058 }
1059
1060
1061 /***********************************************************************
1062  *           GetStdHandle    (KERNEL32.276)
1063  */
1064 HANDLE WINAPI GetStdHandle( DWORD std_handle )
1065 {
1066     PDB *pdb = PROCESS_Current();
1067
1068     switch(std_handle)
1069     {
1070     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
1071     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
1072     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
1073     }
1074     SetLastError( ERROR_INVALID_PARAMETER );
1075     return INVALID_HANDLE_VALUE;
1076 }
1077
1078
1079 /***********************************************************************
1080  *           SetStdHandle    (KERNEL32.506)
1081  */
1082 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
1083 {
1084     PDB *pdb = PROCESS_Current();
1085     /* FIXME: should we close the previous handle? */
1086     switch(std_handle)
1087     {
1088     case STD_INPUT_HANDLE:
1089         pdb->env_db->hStdin = handle;
1090         return TRUE;
1091     case STD_OUTPUT_HANDLE:
1092         pdb->env_db->hStdout = handle;
1093         return TRUE;
1094     case STD_ERROR_HANDLE:
1095         pdb->env_db->hStderr = handle;
1096         return TRUE;
1097     }
1098     SetLastError( ERROR_INVALID_PARAMETER );
1099     return FALSE;
1100 }
1101
1102 /***********************************************************************
1103  *           GetProcessVersion    (KERNEL32)
1104  */
1105 DWORD WINAPI GetProcessVersion( DWORD processid )
1106 {
1107     TDB *pTask;
1108     PDB *pdb = PROCESS_IdToPDB( processid );
1109
1110     if (!pdb) return 0;
1111     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
1112     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
1113 }
1114
1115 /***********************************************************************
1116  *           GetProcessFlags    (KERNEL32)
1117  */
1118 DWORD WINAPI GetProcessFlags( DWORD processid )
1119 {
1120     PDB *pdb = PROCESS_IdToPDB( processid );
1121     if (!pdb) return 0;
1122     return pdb->flags;
1123 }
1124
1125 /***********************************************************************
1126  *              SetProcessWorkingSetSize        [KERNEL32.662]
1127  * Sets the min/max working set sizes for a specified process.
1128  *
1129  * PARAMS
1130  *    hProcess [I] Handle to the process of interest
1131  *    minset   [I] Specifies minimum working set size
1132  *    maxset   [I] Specifies maximum working set size
1133  *
1134  * RETURNS  STD
1135  */
1136 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1137                                        DWORD maxset)
1138 {
1139     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1140     if(( minset == -1) && (maxset == -1)) {
1141         /* Trim the working set to zero */
1142         /* Swap the process out of physical RAM */
1143     }
1144     return TRUE;
1145 }
1146
1147 /***********************************************************************
1148  *           GetProcessWorkingSetSize    (KERNEL32)
1149  */
1150 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1151                                        LPDWORD maxset)
1152 {
1153         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1154         /* 32 MB working set size */
1155         if (minset) *minset = 32*1024*1024;
1156         if (maxset) *maxset = 32*1024*1024;
1157         return TRUE;
1158 }
1159
1160 /***********************************************************************
1161  *           SetProcessShutdownParameters    (KERNEL32)
1162  *
1163  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1164  * Now tracks changes made (but does not act on these changes)
1165  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1166  * It really shouldn't be here, but I'll move it when it's been checked!
1167  */
1168 #define SHUTDOWN_NORETRY 1
1169 static unsigned int shutdown_noretry = 0;
1170 static unsigned int shutdown_priority = 0x280L;
1171 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1172 {
1173     if (flags & SHUTDOWN_NORETRY)
1174       shutdown_noretry = 1;
1175     else
1176       shutdown_noretry = 0;
1177     if (level > 0x100L && level < 0x3FFL)
1178       shutdown_priority = level;
1179     else
1180       {
1181         ERR("invalid priority level 0x%08lx\n", level);
1182         return FALSE;
1183       }
1184     return TRUE;
1185 }
1186
1187
1188 /***********************************************************************
1189  * GetProcessShutdownParameters                 (KERNEL32)
1190  *
1191  */
1192 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1193                                             LPDWORD lpdwFlags )
1194 {
1195   (*lpdwLevel) = shutdown_priority;
1196   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1197   return TRUE;
1198 }
1199 /***********************************************************************
1200  *           SetProcessPriorityBoost    (KERNEL32)
1201  */
1202 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1203 {
1204     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1205     /* Say we can do it. I doubt the program will notice that we don't. */
1206     return TRUE;
1207 }
1208
1209
1210 /***********************************************************************
1211  *           ReadProcessMemory                  (KERNEL32)
1212  */
1213 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1214                                LPDWORD bytes_read )
1215 {
1216     struct read_process_memory_request *req = get_req_buffer();
1217     unsigned int offset = (unsigned int)addr % sizeof(int);
1218     unsigned int max = server_remaining( req->data );  /* max length in one request */
1219     unsigned int pos;
1220
1221     if (bytes_read) *bytes_read = size;
1222
1223     /* first time, read total length to check for permissions */
1224     req->handle = process;
1225     req->addr   = (char *)addr - offset;
1226     req->len    = (size + offset + sizeof(int) - 1) / sizeof(int);
1227     if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1228
1229     if (size <= max - offset)
1230     {
1231         memcpy( buffer, (char *)req->data + offset, size );
1232         return TRUE;
1233     }
1234
1235     /* now take care of the remaining data */
1236     memcpy( buffer, (char *)req->data + offset, max - offset );
1237     pos = max - offset;
1238     size -= pos;
1239     while (size)
1240     {
1241         if (max > size) max = size;
1242         req->handle = process;
1243         req->addr   = (char *)addr + pos;
1244         req->len    = (max + sizeof(int) - 1) / sizeof(int);
1245         if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1246         memcpy( (char *)buffer + pos, (char *)req->data, max );
1247         size -= max;
1248         pos += max;
1249     }
1250     return TRUE;
1251
1252  error:
1253     if (bytes_read) *bytes_read = 0;
1254     return FALSE;
1255 }
1256
1257
1258 /***********************************************************************
1259  *           WriteProcessMemory                 (KERNEL32)
1260  */
1261 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1262                                 LPDWORD bytes_written )
1263 {
1264     unsigned int first_offset, last_offset;
1265     struct write_process_memory_request *req = get_req_buffer();
1266     unsigned int max = server_remaining( req->data );  /* max length in one request */
1267     unsigned int pos, last_mask;
1268
1269     if (!size)
1270     {
1271         SetLastError( ERROR_INVALID_PARAMETER );
1272         return FALSE;
1273     }
1274     if (bytes_written) *bytes_written = size;
1275
1276     /* compute the mask for the first int */
1277     req->first_mask = ~0;
1278     first_offset = (unsigned int)addr % sizeof(int);
1279     memset( &req->first_mask, 0, first_offset );
1280
1281     /* compute the mask for the last int */
1282     last_offset = (size + first_offset) % sizeof(int);
1283     last_mask = 0;
1284     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1285
1286     req->handle = process;
1287     req->addr = (char *)addr - first_offset;
1288     /* for the first request, use the total length */
1289     req->len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1290
1291     if (size + first_offset < max)  /* we can do it in one round */
1292     {
1293         memcpy( (char *)req->data + first_offset, buffer, size );
1294         req->last_mask = last_mask;
1295         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1296         return TRUE;
1297     }
1298
1299     /* needs multiple server calls */
1300
1301     memcpy( (char *)req->data + first_offset, buffer, max - first_offset );
1302     req->last_mask = ~0;
1303     if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1304     pos = max - first_offset;
1305     size -= pos;
1306     while (size)
1307     {
1308         if (size <= max)  /* last one */
1309         {
1310             req->last_mask = last_mask;
1311             max = size;
1312         }
1313         req->handle = process;
1314         req->addr = (char *)addr + pos;
1315         req->len = (max + sizeof(int) - 1) / sizeof(int);
1316         req->first_mask = ~0;
1317         memcpy( req->data, (char *) buffer + pos, max );
1318         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1319         pos += max;
1320         size -= max;
1321     }
1322     return TRUE;
1323
1324  error:
1325     if (bytes_written) *bytes_written = 0;
1326     return FALSE;
1327
1328 }
1329
1330
1331 /***********************************************************************
1332  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1333  *
1334  * A service process calls this function to ensure that it continues to run
1335  * even after a user logged off.
1336  */
1337 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1338 {
1339         /* I don't think that Wine needs to do anything in that function */
1340         return 1; /* success */
1341 }
1342
1343 /***********************************************************************
1344  * GetExitCodeProcess [KERNEL32.325]
1345  *
1346  * Gets termination status of specified process
1347  *
1348  * RETURNS
1349  *   Success: TRUE
1350  *   Failure: FALSE
1351  */
1352 BOOL WINAPI GetExitCodeProcess(
1353     HANDLE hProcess,  /* [I] handle to the process */
1354     LPDWORD lpExitCode) /* [O] address to receive termination status */
1355 {
1356     BOOL ret = FALSE;
1357     struct get_process_info_request *req = get_req_buffer();
1358     req->handle = hProcess;
1359     if (!server_call( REQ_GET_PROCESS_INFO ))
1360     {
1361         if (lpExitCode) *lpExitCode = req->exit_code;
1362         ret = TRUE;
1363     }
1364     return ret;
1365 }
1366
1367
1368 /***********************************************************************
1369  *           SetErrorMode   (KERNEL32.486)
1370  */
1371 UINT WINAPI SetErrorMode( UINT mode )
1372 {
1373     UINT old = PROCESS_Current()->error_mode;
1374     PROCESS_Current()->error_mode = mode;
1375     return old;
1376 }
1377
1378 /***********************************************************************
1379  *           GetCurrentProcess   (KERNEL32.198)
1380  */
1381 #undef GetCurrentProcess
1382 HANDLE WINAPI GetCurrentProcess(void)
1383 {
1384     return 0xffffffff;
1385 }