scheduler/process.c

   1 /*
   2  * Win32 processes
   3  *
   4  * Copyright 1996, 1998 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include "wine/winbase16.h"
  12 #include "process.h"
  13 #include "module.h"
  14 #include "neexe.h"
  15 #include "file.h"
  16 #include "global.h"
  17 #include "heap.h"
  18 #include "task.h"
  19 #include "ldt.h"
  20 #include "syslevel.h"
  21 #include "thread.h"
  22 #include "winerror.h"
  23 #include "pe_image.h"
  24 #include "task.h"
  25 #include "server.h"
  26 #include "callback.h"
  27 #include "debugtools.h"
  28
  29 DECLARE_DEBUG_CHANNEL(process)
  30 DECLARE_DEBUG_CHANNEL(relay)
  31 DECLARE_DEBUG_CHANNEL(win32)
  32
  33
  34 /* The initial process PDB */
  35 static PDB initial_pdb;
  36
  37 static PDB *PROCESS_First = &initial_pdb;
  38
  39   /* Pointer to debugger callback routine */
  40 void (*TASK_AddTaskEntryBreakpoint)( HTASK16 hTask ) = NULL;
  41
  42
  43 /***********************************************************************
  44  *           PROCESS_WalkProcess
  45  */
  46 void PROCESS_WalkProcess(void)
  47 {
  48     PDB  *pdb;
  49     char *name;
  50
  51     pdb = PROCESS_First;
  52     MESSAGE( " pid        PDB         #th  modref     module \n" );
  53     while(pdb)
  54     {
  55         if (pdb == &initial_pdb)
  56             name = "initial PDB";
  57         else
  58             name = (pdb->exe_modref) ? pdb->exe_modref->shortname : "";
  59
  60         MESSAGE( " %8p %8p %5d  %8p %s\n", pdb->server_pid, pdb,
  61                pdb->threads, pdb->exe_modref, name);
  62         pdb = pdb->next;
  63     }
  64     return;
  65 }
  66
  67 /***********************************************************************
  68  *           PROCESS_Initial
  69  *
  70  * FIXME: This works only while running all processes in the same
  71  *        address space (or, at least, the initial process is mapped
  72  *        into all address spaces as is KERNEL32 in Windows 95)
  73  *
  74  */
  75 PDB *PROCESS_Initial(void)
  76 {
  77     return &initial_pdb;
  78 }
  79
  80 /***********************************************************************
  81  *           PROCESS_IsCurrent
  82  *
  83  * Check if a handle is to the current process
  84  */
  85 BOOL PROCESS_IsCurrent( HANDLE handle )
  86 {
  87     struct get_process_info_request *req = get_req_buffer();
  88     req->handle = handle;
  89     return (!server_call( REQ_GET_PROCESS_INFO ) &&
  90             (req->pid == PROCESS_Current()->server_pid));
  91 }
  92
  93
  94 /***********************************************************************
  95  *           PROCESS_IdToPDB
  96  *
  97  * Convert a process id to a PDB, making sure it is valid.
  98  */
  99 PDB *PROCESS_IdToPDB( DWORD id )
 100 {
 101     PDB *pdb;
 102
 103     if (!id) return PROCESS_Current();
 104     pdb = PROCESS_First;
 105     while (pdb)
 106     {
 107         if ((DWORD)pdb->server_pid == id) return pdb;
 108         pdb = pdb->next;
 109     }
 110     SetLastError( ERROR_INVALID_PARAMETER );
 111     return NULL;
 112 }
 113
 114
 115 /***********************************************************************
 116  *           PROCESS_CallUserSignalProc
 117  *
 118  * FIXME:  Some of the signals aren't sent correctly!
 119  *
 120  * The exact meaning of the USER signals is undocumented, but this
 121  * should cover the basic idea:
 122  *
 123  * USIG_DLL_UNLOAD_WIN16
 124  *     This is sent when a 16-bit module is unloaded.
 125  *
 126  * USIG_DLL_UNLOAD_WIN32
 127  *     This is sent when a 32-bit module is unloaded.
 128  *
 129  * USIG_DLL_UNLOAD_ORPHANS
 130  *     This is sent after the last Win3.1 module is unloaded,
 131  *     to allow removal of orphaned menus.
 132  *
 133  * USIG_FAULT_DIALOG_PUSH
 134  * USIG_FAULT_DIALOG_POP
 135  *     These are called to allow USER to prepare for displaying a
 136  *     fault dialog, even though the fault might have happened while
 137  *     inside a USER critical section.
 138  *
 139  * USIG_THREAD_INIT
 140  *     This is called from the context of a new thread, as soon as it
 141  *     has started to run.
 142  *
 143  * USIG_THREAD_EXIT
 144  *     This is called, still in its context, just before a thread is
 145  *     about to terminate.
 146  *
 147  * USIG_PROCESS_CREATE
 148  *     This is called, in the parent process context, after a new process
 149  *     has been created.
 150  *
 151  * USIG_PROCESS_INIT
 152  *     This is called in the new process context, just after the main thread
 153  *     has started execution (after the main thread's USIG_THREAD_INIT has
 154  *     been sent).
 155  *
 156  * USIG_PROCESS_LOADED
 157  *     This is called after the executable file has been loaded into the
 158  *     new process context.
 159  *
 160  * USIG_PROCESS_RUNNING
 161  *     This is called immediately before the main entry point is called.
 162  *
 163  * USIG_PROCESS_EXIT
 164  *     This is called in the context of a process that is about to
 165  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 166  *     been sent).
 167  *
 168  * USIG_PROCESS_DESTROY
 169  *     This is called after a process has terminated.
 170  *
 171  *
 172  * The meaning of the dwFlags bits is as follows:
 173  *
 174  * USIG_FLAGS_WIN32
 175  *     Current process is 32-bit.
 176  *
 177  * USIG_FLAGS_GUI
 178  *     Current process is a (Win32) GUI process.
 179  *
 180  * USIG_FLAGS_FEEDBACK
 181  *     Current process needs 'feedback' (determined from the STARTUPINFO
 182  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 183  *
 184  * USIG_FLAGS_FAULT
 185  *     The signal is being sent due to a fault.
 186  */
 187 static void PROCESS_CallUserSignalProcHelper( UINT uCode, DWORD dwThreadOrProcessId,
 188                                               HMODULE hModule, DWORD flags, DWORD startup_flags )
 189 {
 190     DWORD dwFlags = 0;
 191
 192     /* Determine dwFlags */
 193
 194     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 195
 196     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 197
 198     if ( dwFlags & USIG_FLAGS_GUI )
 199     {
 200         /* Feedback defaults to ON */
 201         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 202             dwFlags |= USIG_FLAGS_FEEDBACK;
 203     }
 204     else
 205     {
 206         /* Feedback defaults to OFF */
 207         if (startup_flags & STARTF_FORCEONFEEDBACK)
 208             dwFlags |= USIG_FLAGS_FEEDBACK;
 209     }
 210
 211     /* Convert module handle to 16-bit */
 212
 213     if ( HIWORD( hModule ) )
 214         hModule = MapHModuleLS( hModule );
 215
 216     /* Call USER signal proc */
 217
 218     if ( Callout.UserSignalProc )
 219         Callout.UserSignalProc( uCode, dwThreadOrProcessId, dwFlags, hModule );
 220 }
 221
 222 /* Call USER signal proc for the current thread/process */
 223 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 224 {
 225     DWORD dwThreadOrProcessId;
 226
 227     /* Get thread or process ID */
 228     if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 229         dwThreadOrProcessId = GetCurrentThreadId();
 230     else
 231         dwThreadOrProcessId = GetCurrentProcessId();
 232
 233     PROCESS_CallUserSignalProcHelper( uCode, dwThreadOrProcessId, hModule,
 234                                       PROCESS_Current()->flags,
 235                                       PROCESS_Current()->env_db->startup_info->dwFlags );
 236 }
 237
 238
 239 /***********************************************************************
 240  *           PROCESS_CreateEnvDB
 241  *
 242  * Create the env DB for a newly started process.
 243  */
 244 static BOOL PROCESS_CreateEnvDB(void)
 245 {
 246     struct init_process_request *req = get_req_buffer();
 247     STARTUPINFOA *startup;
 248     ENVDB *env_db;
 249     char cmd_line[4096];
 250     PDB *pdb = PROCESS_Current();
 251
 252     /* Allocate the env DB */
 253
 254     if (!(env_db = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(ENVDB) )))
 255         return FALSE;
 256     pdb->env_db = env_db;
 257     InitializeCriticalSection( &env_db->section );
 258
 259     /* Allocate and fill the startup info */
 260     if (!(startup = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(STARTUPINFOA) )))
 261         return FALSE;
 262     env_db->startup_info = startup;
 263
 264     /* Retrieve startup info from the server */
 265
 266     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 267     startup->dwFlags     = req->start_flags;
 268     startup->wShowWindow = req->cmd_show;
 269     env_db->hStdin  = startup->hStdInput  = req->hstdin;
 270     env_db->hStdout = startup->hStdOutput = req->hstdout;
 271     env_db->hStderr = startup->hStdError  = req->hstderr;
 272     lstrcpynA( cmd_line, req->cmdline, sizeof(cmd_line) );
 273
 274     /* Copy the parent environment */
 275
 276     if (!ENV_InheritEnvironment( pdb, req->env_ptr )) return FALSE;
 277
 278     /* Copy the command line */
 279
 280     if (!(pdb->env_db->cmd_line = HEAP_strdupA( pdb->heap, 0, cmd_line )))
 281         return FALSE;
 282
 283     return TRUE;
 284 }
 285
 286
 287 /***********************************************************************
 288  *           PROCESS_FreePDB
 289  *
 290  * Free a PDB and all associated storage.
 291  */
 292 void PROCESS_FreePDB( PDB *pdb )
 293 {
 294     PDB **pptr = &PROCESS_First;
 295
 296     ENV_FreeEnvironment( pdb );
 297     while (*pptr && (*pptr != pdb)) pptr = &(*pptr)->next;
 298     if (*pptr) *pptr = pdb->next;
 299     if (pdb->heap && (pdb->heap != pdb->system_heap)) HeapDestroy( pdb->heap );
 300     HeapFree( SystemHeap, 0, pdb );
 301 }
 302
 303
 304 /***********************************************************************
 305  *           PROCESS_CreatePDB
 306  *
 307  * Allocate and fill a PDB structure.
 308  * Runs in the context of the parent process.
 309  */
 310 static PDB *PROCESS_CreatePDB( PDB *parent, BOOL inherit )
 311 {
 312     PDB *pdb = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, sizeof(PDB) );
 313
 314     if (!pdb) return NULL;
 315     pdb->exit_code       = 0x103; /* STILL_ACTIVE */
 316     pdb->threads         = 1;
 317     pdb->running_threads = 1;
 318     pdb->ring0_threads   = 1;
 319     pdb->system_heap     = SystemHeap;
 320     pdb->parent          = parent;
 321     pdb->group           = pdb;
 322     pdb->priority        = 8;  /* Normal */
 323     pdb->heap            = pdb->system_heap;  /* will be changed later on */
 324     pdb->next            = PROCESS_First;
 325     pdb->winver          = 0xffff; /* to be determined */
 326     PROCESS_First = pdb;
 327     return pdb;
 328 }
 329
 330
 331 /***********************************************************************
 332  *           PROCESS_Init
 333  */
 334 BOOL PROCESS_Init(void)
 335 {
 336     TEB *teb;
 337     int server_fd;
 338
 339     /* Start the server */
 340     server_fd = CLIENT_InitServer();
 341
 342     /* Fill the initial process structure */
 343     initial_pdb.exit_code       = 0x103; /* STILL_ACTIVE */
 344     initial_pdb.threads         = 1;
 345     initial_pdb.running_threads = 1;
 346     initial_pdb.ring0_threads   = 1;
 347     initial_pdb.group           = &initial_pdb;
 348     initial_pdb.priority        = 8;  /* Normal */
 349     initial_pdb.flags           = PDB32_WIN16_PROC;
 350     initial_pdb.winver          = 0xffff; /* to be determined */
 351
 352     /* Initialize virtual memory management */
 353     if (!VIRTUAL_Init()) return FALSE;
 354
 355     /* Create the initial thread structure and socket pair */
 356     if (!(teb = THREAD_CreateInitialThread( &initial_pdb, server_fd ))) return FALSE;
 357
 358     /* Remember TEB selector of initial process for emergency use */
 359     SYSLEVEL_EmergencyTeb = teb->teb_sel;
 360
 361     /* Create the system heap */
 362     if (!(SystemHeap = HeapCreate( HEAP_GROWABLE, 0x10000, 0 ))) return FALSE;
 363     initial_pdb.system_heap = initial_pdb.heap = SystemHeap;
 364
 365     /* Create the environment DB of the first process */
 366     if (!PROCESS_CreateEnvDB()) return FALSE;
 367
 368     /* Create the SEGPTR heap */
 369     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 370
 371     /* Initialize the first process critical section */
 372     InitializeCriticalSection( &initial_pdb.crit_section );
 373
 374     return TRUE;
 375 }
 376
 377
 378 /***********************************************************************
 379  *           PROCESS_Start
 380  *
 381  * Startup routine of a new process. Called in the context of the new process.
 382  */
 383 void PROCESS_Start(void)
 384 {
 385     UINT cmdShow = 0;
 386     LPTHREAD_START_ROUTINE entry = NULL;
 387     PDB *pdb = PROCESS_Current();
 388     NE_MODULE *pModule = NE_GetPtr( pdb->module );
 389     OFSTRUCT *ofs = (OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo);
 390     IMAGE_OPTIONAL_HEADER *header = !pModule->module32? NULL :
 391                                     &PE_HEADER(pModule->module32)->OptionalHeader;
 392
 393     /* Get process type */
 394     enum { PROC_DOS, PROC_WIN16, PROC_WIN32 } type;
 395     if ( pdb->flags & PDB32_DOS_PROC )
 396         type = PROC_DOS;
 397     else if ( pdb->flags & PDB32_WIN16_PROC )
 398         type = PROC_WIN16;
 399     else
 400         type = PROC_WIN32;
 401
 402     /* Initialize the critical section */
 403     InitializeCriticalSection( &pdb->crit_section );
 404
 405     /* Create the heap */
 406     if (!(pdb->heap = HeapCreate( HEAP_GROWABLE,
 407                                   header? header->SizeOfHeapReserve : 0x10000,
 408                                   header? header->SizeOfHeapCommit  : 0 )))
 409         goto error;
 410     pdb->heap_list = pdb->heap;
 411
 412     /* Create the environment db */
 413     if (!PROCESS_CreateEnvDB()) goto error;
 414
 415     /* Create a task for this process */
 416     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 417         cmdShow = pdb->env_db->startup_info->wShowWindow;
 418     if (!TASK_Create( pModule, cmdShow ))
 419         goto error;
 420
 421     /* Perform Win16 specific process initialization */
 422     if ( type == PROC_WIN16 )
 423         if ( !NE_InitProcess( pModule ) )
 424             goto error;
 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     /* Load USER32.DLL before calling UserSignalProc (relay debugging!) */
 436     LoadLibraryA( "USER32.DLL" );
 437
 438     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 439
 440     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );  /* for initial thread */
 441
 442     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 443
 444     /* Signal the parent process to continue */
 445     SetEvent( pdb->load_done_evt );
 446     CloseHandle( pdb->load_done_evt );
 447     pdb->load_done_evt = INVALID_HANDLE_VALUE;
 448
 449     /* Perform Win32 specific process initialization */
 450     if ( type == PROC_WIN32 )
 451     {
 452         /* Send the debug event to the debugger */
 453         entry = (LPTHREAD_START_ROUTINE)RVA_PTR(pModule->module32,
 454                                                 OptionalHeader.AddressOfEntryPoint);
 455         if (pdb->flags & PDB32_DEBUGGED)
 456             DEBUG_SendCreateProcessEvent( -1 /*FIXME*/, pModule->module32, entry );
 457
 458         /* Create 32-bit MODREF */
 459         if (!PE_CreateModule( pModule->module32, ofs, 0, FALSE )) goto error;
 460
 461         /* Increment EXE refcount */
 462         assert( pdb->exe_modref );
 463         pdb->exe_modref->refCount++;
 464
 465         /* Initialize thread-local storage */
 466         PE_InitTls();
 467     }
 468
 469     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );   /* FIXME: correct location? */
 470
 471     if ( (pdb->flags & PDB32_CONSOLE_PROC) || (pdb->flags & PDB32_DOS_PROC) )
 472         AllocConsole();
 473
 474     if ( type == PROC_WIN32 )
 475     {
 476         EnterCriticalSection( &pdb->crit_section );
 477         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 478         LeaveCriticalSection( &pdb->crit_section );
 479     }
 480
 481     /* If requested, add entry point breakpoint */
 482     if ( TASK_AddTaskEntryBreakpoint )
 483         TASK_AddTaskEntryBreakpoint( pdb->task );
 484
 485     /* Now call the entry point */
 486     PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 487
 488     switch ( type )
 489     {
 490     case PROC_DOS:
 491         TRACE_(relay)( "Starting DOS process\n" );
 492         DOSVM_Enter( NULL );
 493         ERR_(relay)( "DOSVM_Enter returned; should not happen!\n" );
 494         ExitProcess( 0 );
 495
 496     case PROC_WIN16:
 497         TRACE_(relay)( "Starting Win16 process\n" );
 498         TASK_CallToStart();
 499         ERR_(relay)( "TASK_CallToStart returned; should not happen!\n" );
 500         ExitProcess( 0 );
 501
 502     case PROC_WIN32:
 503         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 504         ExitProcess( entry(NULL) );
 505     }
 506
 507  error:
 508     ExitProcess( GetLastError() );
 509 }
 510
 511
 512 /***********************************************************************
 513  *           PROCESS_Create
 514  *
 515  * Create a new process database and associated info.
 516  */
 517 PDB *PROCESS_Create( NE_MODULE *pModule, LPCSTR cmd_line, LPCSTR env,
 518                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 519                      BOOL inherit, DWORD flags, STARTUPINFOA *startup,
 520                      PROCESS_INFORMATION *info )
 521 {
 522     HANDLE handles[2], load_done_evt = INVALID_HANDLE_VALUE;
 523     DWORD exitcode, size;
 524     BOOL alloc_stack16;
 525     int server_thandle;
 526     struct new_process_request *req = get_req_buffer();
 527     TEB *teb = NULL;
 528     PDB *parent = PROCESS_Current();
 529     PDB *pdb = PROCESS_CreatePDB( parent, inherit );
 530
 531     if (!pdb) return NULL;
 532     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 533
 534     /* Create the process on the server side */
 535
 536     req->inherit      = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 537     req->inherit_all  = inherit;
 538     req->create_flags = flags;
 539     req->start_flags  = startup->dwFlags;
 540     if (startup->dwFlags & STARTF_USESTDHANDLES)
 541     {
 542         req->hstdin  = startup->hStdInput;
 543         req->hstdout = startup->hStdOutput;
 544         req->hstderr = startup->hStdError;
 545     }
 546     else
 547     {
 548         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 549         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 550         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 551     }
 552     req->cmd_show = startup->wShowWindow;
 553     req->env_ptr = (void*)env;  /* FIXME: hack */
 554     lstrcpynA( req->cmdline, cmd_line, server_remaining(req->cmdline) );
 555     if (server_call( REQ_NEW_PROCESS )) goto error;
 556     pdb->server_pid   = req->pid;
 557     info->hProcess    = req->handle;
 558     info->dwProcessId = (DWORD)pdb->server_pid;
 559
 560     if ((flags & DEBUG_PROCESS) ||
 561         ((parent->flags & PDB32_DEBUGGED) && !(flags & DEBUG_ONLY_THIS_PROCESS)))
 562         pdb->flags |= PDB32_DEBUGGED;
 563
 564     if (pModule->module32)   /* Win32 process */
 565     {
 566         IMAGE_OPTIONAL_HEADER *header = &PE_HEADER(pModule->module32)->OptionalHeader;
 567         size = header->SizeOfStackReserve;
 568         if (header->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
 569             pdb->flags |= PDB32_CONSOLE_PROC;
 570         alloc_stack16 = TRUE;
 571     }
 572     else if (!pModule->dos_image) /* Win16 process */
 573     {
 574         alloc_stack16 = FALSE;
 575         size = 0;
 576         pdb->flags |= PDB32_WIN16_PROC;
 577     }
 578     else  /* DOS process */
 579     {
 580         alloc_stack16 = FALSE;
 581         size = 0;
 582         pdb->flags |= PDB32_DOS_PROC;
 583     }
 584
 585     /* Create the main thread */
 586
 587     if (!(teb = THREAD_Create( pdb, 0L, size, alloc_stack16, tsa, &server_thandle )))
 588         goto error;
 589     info->hThread     = server_thandle;
 590     info->dwThreadId  = (DWORD)teb->tid;
 591     teb->startup = PROCESS_Start;
 592
 593     /* Create the load-done event */
 594     load_done_evt = CreateEventA( NULL, TRUE, FALSE, NULL );
 595     DuplicateHandle( GetCurrentProcess(), load_done_evt,
 596                      info->hProcess, &pdb->load_done_evt, 0, TRUE, DUPLICATE_SAME_ACCESS );
 597
 598     /* Pass module to new process (FIXME: hack) */
 599     pdb->module = pModule->self;
 600     SYSDEPS_SpawnThread( teb );
 601
 602     /* Wait until process is initialized (or initialization failed) */
 603     handles[0] = info->hProcess;
 604     handles[1] = load_done_evt;
 605
 606     switch ( WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) )
 607     {
 608     default:
 609         ERR_(process)( "WaitForMultipleObjects failed\n" );
 610         break;
 611
 612     case 0:
 613         /* Child initialization code returns error condition as exitcode */
 614         if ( GetExitCodeProcess( info->hProcess, &exitcode ) )
 615             SetLastError( exitcode );
 616         goto error;
 617
 618     case 1:
 619         /* Get 16-bit task up and running */
 620         if ( pdb->flags & PDB32_WIN16_PROC )
 621         {
 622             /* Post event to start the task */
 623             PostEvent16( pdb->task );
 624
 625             /* If we ourselves are a 16-bit task, we Yield() directly. */
 626             if ( parent->flags & PDB32_WIN16_PROC )
 627                 OldYield16();
 628         }
 629         break;
 630     }
 631
 632     CloseHandle( load_done_evt );
 633     load_done_evt = INVALID_HANDLE_VALUE;
 634
 635     return pdb;
 636
 637 error:
 638     if (load_done_evt != INVALID_HANDLE_VALUE) CloseHandle( load_done_evt );
 639     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 640     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 641     PROCESS_FreePDB( pdb );
 642     return NULL;
 643 }
 644
 645
 646 /***********************************************************************
 647  *           ExitProcess   (KERNEL32.100)
 648  */
 649 void WINAPI ExitProcess( DWORD status )
 650 {
 651     EnterCriticalSection( &PROCESS_Current()->crit_section );
 652     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 653     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 654
 655     TASK_KillTask( 0 );
 656     TerminateProcess( GetCurrentProcess(), status );
 657 }
 658
 659 /***********************************************************************
 660  *           ExitProcess16   (KERNEL.466)
 661  */
 662 void WINAPI ExitProcess16( WORD status )
 663 {
 664     SYSLEVEL_ReleaseWin16Lock();
 665     ExitProcess( status );
 666 }
 667
 668 /******************************************************************************
 669  *           TerminateProcess   (KERNEL32.684)
 670  */
 671 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 672 {
 673     struct terminate_process_request *req = get_req_buffer();
 674     req->handle    = handle;
 675     req->exit_code = exit_code;
 676     return !server_call( REQ_TERMINATE_PROCESS );
 677 }
 678
 679
 680 /***********************************************************************
 681  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 682  * 'Of course you cannot directly access Windows internal structures'
 683  */
 684 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 685 {
 686     PDB *process = PROCESS_IdToPDB( dwProcessID );
 687     TDB *pTask;
 688     DWORD x, y;
 689
 690     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 691     if ( !process ) return 0;
 692
 693     switch ( offset )
 694     {
 695     case GPD_APP_COMPAT_FLAGS:
 696         pTask = (TDB *)GlobalLock16( process->task );
 697         return pTask? pTask->compat_flags : 0;
 698
 699     case GPD_LOAD_DONE_EVENT:
 700         return process->load_done_evt;
 701
 702     case GPD_HINSTANCE16:
 703         pTask = (TDB *)GlobalLock16( process->task );
 704         return pTask? pTask->hInstance : 0;
 705
 706     case GPD_WINDOWS_VERSION:
 707         pTask = (TDB *)GlobalLock16( process->task );
 708         return pTask? pTask->version : 0;
 709
 710     case GPD_THDB:
 711         if ( process != PROCESS_Current() ) return 0;
 712         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 713
 714     case GPD_PDB:
 715         return (DWORD)process;
 716
 717     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 718         return process->env_db->startup_info->hStdOutput;
 719
 720     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 721         return process->env_db->startup_info->hStdInput;
 722
 723     case GPD_STARTF_SHOWWINDOW:
 724         return process->env_db->startup_info->wShowWindow;
 725
 726     case GPD_STARTF_SIZE:
 727         x = process->env_db->startup_info->dwXSize;
 728         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 729         y = process->env_db->startup_info->dwYSize;
 730         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 731         return MAKELONG( x, y );
 732
 733     case GPD_STARTF_POSITION:
 734         x = process->env_db->startup_info->dwX;
 735         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 736         y = process->env_db->startup_info->dwY;
 737         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 738         return MAKELONG( x, y );
 739
 740     case GPD_STARTF_FLAGS:
 741         return process->env_db->startup_info->dwFlags;
 742
 743     case GPD_PARENT:
 744         return (DWORD)process->parent->server_pid;
 745
 746     case GPD_FLAGS:
 747         return process->flags;
 748
 749     case GPD_USERDATA:
 750         return process->process_dword;
 751
 752     default:
 753         ERR_(win32)("Unknown offset %d\n", offset );
 754         return 0;
 755     }
 756 }
 757
 758 /***********************************************************************
 759  *           SetProcessDword    (KERNEL.484)
 760  * 'Of course you cannot directly access Windows internal structures'
 761  */
 762 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 763 {
 764     PDB *process = PROCESS_IdToPDB( dwProcessID );
 765
 766     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 767     if ( !process ) return;
 768
 769     switch ( offset )
 770     {
 771     case GPD_APP_COMPAT_FLAGS:
 772     case GPD_LOAD_DONE_EVENT:
 773     case GPD_HINSTANCE16:
 774     case GPD_WINDOWS_VERSION:
 775     case GPD_THDB:
 776     case GPD_PDB:
 777     case GPD_STARTF_SHELLDATA:
 778     case GPD_STARTF_HOTKEY:
 779     case GPD_STARTF_SHOWWINDOW:
 780     case GPD_STARTF_SIZE:
 781     case GPD_STARTF_POSITION:
 782     case GPD_STARTF_FLAGS:
 783     case GPD_PARENT:
 784     case GPD_FLAGS:
 785         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 786         break;
 787
 788     case GPD_USERDATA:
 789         process->process_dword = value;
 790         break;
 791
 792     default:
 793         ERR_(win32)("Unknown offset %d\n", offset );
 794         break;
 795     }
 796 }
 797
 798
 799 /***********************************************************************
 800  *           GetCurrentProcess   (KERNEL32.198)
 801  */
 802 HANDLE WINAPI GetCurrentProcess(void)
 803 {
 804     return CURRENT_PROCESS_PSEUDOHANDLE;
 805 }
 806
 807
 808 /*********************************************************************
 809  *           OpenProcess   (KERNEL32.543)
 810  */
 811 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 812 {
 813     HANDLE ret = 0;
 814     struct open_process_request *req = get_req_buffer();
 815
 816     req->pid     = (void *)id;
 817     req->access  = access;
 818     req->inherit = inherit;
 819     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 820     return ret;
 821 }
 822
 823 /*********************************************************************
 824  *           MapProcessHandle   (KERNEL.483)
 825  */
 826 DWORD WINAPI MapProcessHandle( HANDLE handle )
 827 {
 828     DWORD ret = 0;
 829     struct get_process_info_request *req = get_req_buffer();
 830     req->handle = handle;
 831     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
 832     return ret;
 833 }
 834
 835 /***********************************************************************
 836  *           GetCurrentProcessId   (KERNEL32.199)
 837  */
 838 DWORD WINAPI GetCurrentProcessId(void)
 839 {
 840     return (DWORD)PROCESS_Current()->server_pid;
 841 }
 842
 843
 844 /***********************************************************************
 845  *           GetProcessHeap    (KERNEL32.259)
 846  */
 847 HANDLE WINAPI GetProcessHeap(void)
 848 {
 849     PDB *pdb = PROCESS_Current();
 850     return pdb->heap ? pdb->heap : SystemHeap;
 851 }
 852
 853
 854 /***********************************************************************
 855  *           GetThreadLocale    (KERNEL32.295)
 856  */
 857 LCID WINAPI GetThreadLocale(void)
 858 {
 859     return PROCESS_Current()->locale;
 860 }
 861
 862
 863 /***********************************************************************
 864  *           SetPriorityClass   (KERNEL32.503)
 865  */
 866 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
 867 {
 868     struct set_process_info_request *req = get_req_buffer();
 869     req->handle   = hprocess;
 870     req->priority = priorityclass;
 871     req->mask     = SET_PROCESS_INFO_PRIORITY;
 872     return !server_call( REQ_SET_PROCESS_INFO );
 873 }
 874
 875
 876 /***********************************************************************
 877  *           GetPriorityClass   (KERNEL32.250)
 878  */
 879 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
 880 {
 881     DWORD ret = 0;
 882     struct get_process_info_request *req = get_req_buffer();
 883     req->handle = hprocess;
 884     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
 885     return ret;
 886 }
 887
 888
 889 /***********************************************************************
 890  *          SetProcessAffinityMask   (KERNEL32.662)
 891  */
 892 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
 893 {
 894     struct set_process_info_request *req = get_req_buffer();
 895     req->handle   = hProcess;
 896     req->affinity = affmask;
 897     req->mask     = SET_PROCESS_INFO_AFFINITY;
 898     return !server_call( REQ_SET_PROCESS_INFO );
 899 }
 900
 901 /**********************************************************************
 902  *          GetProcessAffinityMask    (KERNEL32.373)
 903  */
 904 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
 905                                       LPDWORD lpProcessAffinityMask,
 906                                       LPDWORD lpSystemAffinityMask )
 907 {
 908     BOOL ret = FALSE;
 909     struct get_process_info_request *req = get_req_buffer();
 910     req->handle = hProcess;
 911     if (!server_call( REQ_GET_PROCESS_INFO ))
 912     {
 913         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
 914         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
 915         ret = TRUE;
 916     }
 917     return ret;
 918 }
 919
 920
 921 /***********************************************************************
 922  *           GetStdHandle    (KERNEL32.276)
 923  */
 924 HANDLE WINAPI GetStdHandle( DWORD std_handle )
 925 {
 926     PDB *pdb = PROCESS_Current();
 927
 928     switch(std_handle)
 929     {
 930     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
 931     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
 932     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
 933     }
 934     SetLastError( ERROR_INVALID_PARAMETER );
 935     return INVALID_HANDLE_VALUE;
 936 }
 937
 938
 939 /***********************************************************************
 940  *           SetStdHandle    (KERNEL32.506)
 941  */
 942 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
 943 {
 944     PDB *pdb = PROCESS_Current();
 945     /* FIXME: should we close the previous handle? */
 946     switch(std_handle)
 947     {
 948     case STD_INPUT_HANDLE:
 949         pdb->env_db->hStdin = handle;
 950         return TRUE;
 951     case STD_OUTPUT_HANDLE:
 952         pdb->env_db->hStdout = handle;
 953         return TRUE;
 954     case STD_ERROR_HANDLE:
 955         pdb->env_db->hStderr = handle;
 956         return TRUE;
 957     }
 958     SetLastError( ERROR_INVALID_PARAMETER );
 959     return FALSE;
 960 }
 961
 962 /***********************************************************************
 963  *           GetProcessVersion    (KERNEL32)
 964  */
 965 DWORD WINAPI GetProcessVersion( DWORD processid )
 966 {
 967     TDB *pTask;
 968     PDB *pdb = PROCESS_IdToPDB( processid );
 969
 970     if (!pdb) return 0;
 971     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
 972     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
 973 }
 974
 975 /***********************************************************************
 976  *           GetProcessFlags    (KERNEL32)
 977  */
 978 DWORD WINAPI GetProcessFlags( DWORD processid )
 979 {
 980     PDB *pdb = PROCESS_IdToPDB( processid );
 981     if (!pdb) return 0;
 982     return pdb->flags;
 983 }
 984
 985 /***********************************************************************
 986  *              SetProcessWorkingSetSize        [KERNEL32.662]
 987  * Sets the min/max working set sizes for a specified process.
 988  *
 989  * PARAMS
 990  *    hProcess [I] Handle to the process of interest
 991  *    minset   [I] Specifies minimum working set size
 992  *    maxset   [I] Specifies maximum working set size
 993  *
 994  * RETURNS  STD
 995  */
 996 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
 997                                        DWORD maxset)
 998 {
 999     FIXME_(process)("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1000     if(( minset == -1) && (maxset == -1)) {
1001         /* Trim the working set to zero */
1002         /* Swap the process out of physical RAM */
1003     }
1004     return TRUE;
1005 }
1006
1007 /***********************************************************************
1008  *           GetProcessWorkingSetSize    (KERNEL32)
1009  */
1010 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1011                                        LPDWORD maxset)
1012 {
1013         FIXME_(process)("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1014         /* 32 MB working set size */
1015         if (minset) *minset = 32*1024*1024;
1016         if (maxset) *maxset = 32*1024*1024;
1017         return TRUE;
1018 }
1019
1020 /***********************************************************************
1021  *           SetProcessShutdownParameters    (KERNEL32)
1022  *
1023  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1024  * Now tracks changes made (but does not act on these changes)
1025  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1026  * It really shouldn't be here, but I'll move it when it's been checked!
1027  */
1028 #define SHUTDOWN_NORETRY 1
1029 static unsigned int shutdown_noretry = 0;
1030 static unsigned int shutdown_priority = 0x280L;
1031 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1032 {
1033     if (flags & SHUTDOWN_NORETRY)
1034       shutdown_noretry = 1;
1035     else
1036       shutdown_noretry = 0;
1037     if (level > 0x100L && level < 0x3FFL)
1038       shutdown_priority = level;
1039     else
1040       {
1041         ERR_(process)("invalid priority level 0x%08lx\n", level);
1042         return FALSE;
1043       }
1044     return TRUE;
1045 }
1046
1047
1048 /***********************************************************************
1049  * GetProcessShutdownParameters                 (KERNEL32)
1050  *
1051  */
1052 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1053                                             LPDWORD lpdwFlags )
1054 {
1055   (*lpdwLevel) = shutdown_priority;
1056   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1057   return TRUE;
1058 }
1059 /***********************************************************************
1060  *           SetProcessPriorityBoost    (KERNEL32)
1061  */
1062 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1063 {
1064     FIXME_(process)("(%d,%d): stub\n",hprocess,disableboost);
1065     /* Say we can do it. I doubt the program will notice that we don't. */
1066     return TRUE;
1067 }
1068
1069 /***********************************************************************
1070  *           ReadProcessMemory                  (KERNEL32)
1071  * FIXME: check this, if we ever run win32 binaries in different addressspaces
1072  *        ... and add a sizecheck
1073  */
1074 BOOL WINAPI ReadProcessMemory( HANDLE hProcess, LPCVOID lpBaseAddress,
1075                                  LPVOID lpBuffer, DWORD nSize,
1076                                  LPDWORD lpNumberOfBytesRead )
1077 {
1078         memcpy(lpBuffer,lpBaseAddress,nSize);
1079         if (lpNumberOfBytesRead) *lpNumberOfBytesRead = nSize;
1080         return TRUE;
1081 }
1082
1083 /***********************************************************************
1084  *           WriteProcessMemory                 (KERNEL32)
1085  * FIXME: check this, if we ever run win32 binaries in different addressspaces
1086  *        ... and add a sizecheck
1087  */
1088 BOOL WINAPI WriteProcessMemory(HANDLE hProcess, LPVOID lpBaseAddress,
1089                                  LPVOID lpBuffer, DWORD nSize,
1090                                  LPDWORD lpNumberOfBytesWritten )
1091 {
1092         memcpy(lpBaseAddress,lpBuffer,nSize);
1093         if (lpNumberOfBytesWritten) *lpNumberOfBytesWritten = nSize;
1094         return TRUE;
1095 }
1096
1097 /***********************************************************************
1098  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1099  *
1100  * A service process calls this function to ensure that it continues to run
1101  * even after a user logged off.
1102  */
1103 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1104 {
1105         /* I don't think that Wine needs to do anything in that function */
1106         return 1; /* success */
1107 }
1108
1109 /***********************************************************************
1110  * GetExitCodeProcess [KERNEL32.325]
1111  *
1112  * Gets termination status of specified process
1113  *
1114  * RETURNS
1115  *   Success: TRUE
1116  *   Failure: FALSE
1117  */
1118 BOOL WINAPI GetExitCodeProcess(
1119     HANDLE hProcess,  /* [I] handle to the process */
1120     LPDWORD lpExitCode) /* [O] address to receive termination status */
1121 {
1122     BOOL ret = FALSE;
1123     struct get_process_info_request *req = get_req_buffer();
1124     req->handle = hProcess;
1125     if (!server_call( REQ_GET_PROCESS_INFO ))
1126     {
1127         if (lpExitCode) *lpExitCode = req->exit_code;
1128         ret = TRUE;
1129     }
1130     return ret;
1131 }
1132
1133
1134 /***********************************************************************
1135  * GetProcessHeaps [KERNEL32.376]
1136  */
1137 DWORD WINAPI GetProcessHeaps(DWORD nrofheaps,HANDLE *heaps) {
1138         FIXME_(win32)("(%ld,%p), incomplete implementation.\n",nrofheaps,heaps);
1139
1140         if (nrofheaps) {
1141                 heaps[0] = GetProcessHeap();
1142                 /* ... probably SystemHeap too ? */
1143                 return 1;
1144         }
1145         /* number of available heaps */
1146         return 1;
1147 }
1148
1149
1150 /***********************************************************************
1151  *           SetErrorMode   (KERNEL32.486)
1152  */
1153 UINT WINAPI SetErrorMode( UINT mode )
1154 {
1155     UINT old = PROCESS_Current()->error_mode;
1156     PROCESS_Current()->error_mode = mode;
1157     return old;
1158 }