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