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 "options.h"
  27 #include "callback.h"
  28 #include "debugtools.h"
  29
  30 DECLARE_DEBUG_CHANNEL(process)
  31 DECLARE_DEBUG_CHANNEL(relay)
  32 DECLARE_DEBUG_CHANNEL(win32)
  33
  34
  35 /* The initial process PDB */
  36 static PDB initial_pdb;
  37
  38 static PDB *PROCESS_First = &initial_pdb;
  39
  40   /* Pointer to debugger callback routine */
  41 void (*TASK_AddTaskEntryBreakpoint)( HTASK16 hTask ) = NULL;
  42
  43
  44 /***********************************************************************
  45  *           PROCESS_WalkProcess
  46  */
  47 void PROCESS_WalkProcess(void)
  48 {
  49     PDB  *pdb;
  50     char *name;
  51
  52     pdb = PROCESS_First;
  53     MESSAGE( " pid        PDB         #th  modref     module \n" );
  54     while(pdb)
  55     {
  56         if (pdb == &initial_pdb)
  57             name = "initial PDB";
  58         else
  59             name = (pdb->exe_modref) ? pdb->exe_modref->shortname : "";
  60
  61         MESSAGE( " %8p %8p %5d  %8p %s\n", pdb->server_pid, pdb,
  62                pdb->threads, pdb->exe_modref, name);
  63         pdb = pdb->next;
  64     }
  65     return;
  66 }
  67
  68 /***********************************************************************
  69  *           PROCESS_Initial
  70  *
  71  * FIXME: This works only while running all processes in the same
  72  *        address space (or, at least, the initial process is mapped
  73  *        into all address spaces as is KERNEL32 in Windows 95)
  74  *
  75  */
  76 PDB *PROCESS_Initial(void)
  77 {
  78     return &initial_pdb;
  79 }
  80
  81 /***********************************************************************
  82  *           PROCESS_IsCurrent
  83  *
  84  * Check if a handle is to the current process
  85  */
  86 BOOL PROCESS_IsCurrent( HANDLE handle )
  87 {
  88     struct get_process_info_request *req = get_req_buffer();
  89     req->handle = handle;
  90     return (!server_call( REQ_GET_PROCESS_INFO ) &&
  91             (req->pid == PROCESS_Current()->server_pid));
  92 }
  93
  94
  95 /***********************************************************************
  96  *           PROCESS_IdToPDB
  97  *
  98  * Convert a process id to a PDB, making sure it is valid.
  99  */
 100 PDB *PROCESS_IdToPDB( DWORD id )
 101 {
 102     PDB *pdb;
 103
 104     if (!id) return PROCESS_Current();
 105     pdb = PROCESS_First;
 106     while (pdb)
 107     {
 108         if ((DWORD)pdb->server_pid == id) return pdb;
 109         pdb = pdb->next;
 110     }
 111     SetLastError( ERROR_INVALID_PARAMETER );
 112     return NULL;
 113 }
 114
 115
 116 /***********************************************************************
 117  *           PROCESS_CallUserSignalProc
 118  *
 119  * FIXME:  Some of the signals aren't sent correctly!
 120  *
 121  * The exact meaning of the USER signals is undocumented, but this
 122  * should cover the basic idea:
 123  *
 124  * USIG_DLL_UNLOAD_WIN16
 125  *     This is sent when a 16-bit module is unloaded.
 126  *
 127  * USIG_DLL_UNLOAD_WIN32
 128  *     This is sent when a 32-bit module is unloaded.
 129  *
 130  * USIG_DLL_UNLOAD_ORPHANS
 131  *     This is sent after the last Win3.1 module is unloaded,
 132  *     to allow removal of orphaned menus.
 133  *
 134  * USIG_FAULT_DIALOG_PUSH
 135  * USIG_FAULT_DIALOG_POP
 136  *     These are called to allow USER to prepare for displaying a
 137  *     fault dialog, even though the fault might have happened while
 138  *     inside a USER critical section.
 139  *
 140  * USIG_THREAD_INIT
 141  *     This is called from the context of a new thread, as soon as it
 142  *     has started to run.
 143  *
 144  * USIG_THREAD_EXIT
 145  *     This is called, still in its context, just before a thread is
 146  *     about to terminate.
 147  *
 148  * USIG_PROCESS_CREATE
 149  *     This is called, in the parent process context, after a new process
 150  *     has been created.
 151  *
 152  * USIG_PROCESS_INIT
 153  *     This is called in the new process context, just after the main thread
 154  *     has started execution (after the main thread's USIG_THREAD_INIT has
 155  *     been sent).
 156  *
 157  * USIG_PROCESS_LOADED
 158  *     This is called after the executable file has been loaded into the
 159  *     new process context.
 160  *
 161  * USIG_PROCESS_RUNNING
 162  *     This is called immediately before the main entry point is called.
 163  *
 164  * USIG_PROCESS_EXIT
 165  *     This is called in the context of a process that is about to
 166  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 167  *     been sent).
 168  *
 169  * USIG_PROCESS_DESTROY
 170  *     This is called after a process has terminated.
 171  *
 172  *
 173  * The meaning of the dwFlags bits is as follows:
 174  *
 175  * USIG_FLAGS_WIN32
 176  *     Current process is 32-bit.
 177  *
 178  * USIG_FLAGS_GUI
 179  *     Current process is a (Win32) GUI process.
 180  *
 181  * USIG_FLAGS_FEEDBACK
 182  *     Current process needs 'feedback' (determined from the STARTUPINFO
 183  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 184  *
 185  * USIG_FLAGS_FAULT
 186  *     The signal is being sent due to a fault.
 187  */
 188 static void PROCESS_CallUserSignalProcHelper( UINT uCode, DWORD dwThreadOrProcessId,
 189                                               HMODULE hModule, DWORD flags, DWORD startup_flags )
 190 {
 191     DWORD dwFlags = 0;
 192
 193     /* Determine dwFlags */
 194
 195     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 196
 197     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 198
 199     if ( dwFlags & USIG_FLAGS_GUI )
 200     {
 201         /* Feedback defaults to ON */
 202         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 203             dwFlags |= USIG_FLAGS_FEEDBACK;
 204     }
 205     else
 206     {
 207         /* Feedback defaults to OFF */
 208         if (startup_flags & STARTF_FORCEONFEEDBACK)
 209             dwFlags |= USIG_FLAGS_FEEDBACK;
 210     }
 211
 212     /* Convert module handle to 16-bit */
 213
 214     if ( HIWORD( hModule ) )
 215         hModule = MapHModuleLS( hModule );
 216
 217     /* Call USER signal proc */
 218
 219     if ( Callout.UserSignalProc )
 220         Callout.UserSignalProc( uCode, dwThreadOrProcessId, dwFlags, hModule );
 221 }
 222
 223 /* Call USER signal proc for the current thread/process */
 224 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 225 {
 226     DWORD dwThreadOrProcessId;
 227
 228     /* Get thread or process ID */
 229     if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 230         dwThreadOrProcessId = GetCurrentThreadId();
 231     else
 232         dwThreadOrProcessId = GetCurrentProcessId();
 233
 234     PROCESS_CallUserSignalProcHelper( uCode, dwThreadOrProcessId, hModule,
 235                                       PROCESS_Current()->flags,
 236                                       PROCESS_Current()->env_db->startup_info->dwFlags );
 237 }
 238
 239
 240 /***********************************************************************
 241  *           PROCESS_CreateEnvDB
 242  *
 243  * Create the env DB for a newly started process.
 244  */
 245 static BOOL PROCESS_CreateEnvDB(void)
 246 {
 247     struct init_process_request *req = get_req_buffer();
 248     STARTUPINFOA *startup;
 249     ENVDB *env_db;
 250     char cmd_line[4096];
 251     PDB *pdb = PROCESS_Current();
 252
 253     /* Allocate the env DB */
 254
 255     if (!(env_db = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(ENVDB) )))
 256         return FALSE;
 257     pdb->env_db = env_db;
 258     InitializeCriticalSection( &env_db->section );
 259
 260     /* Allocate and fill the startup info */
 261     if (!(startup = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(STARTUPINFOA) )))
 262         return FALSE;
 263     env_db->startup_info = startup;
 264
 265     /* Retrieve startup info from the server */
 266
 267     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 268     startup->dwFlags     = req->start_flags;
 269     startup->wShowWindow = req->cmd_show;
 270     env_db->hStdin  = startup->hStdInput  = req->hstdin;
 271     env_db->hStdout = startup->hStdOutput = req->hstdout;
 272     env_db->hStderr = startup->hStdError  = req->hstderr;
 273     lstrcpynA( cmd_line, req->cmdline, sizeof(cmd_line) );
 274
 275     /* Copy the parent environment */
 276
 277     if (!ENV_InheritEnvironment( pdb, req->env_ptr )) return FALSE;
 278
 279     /* Copy the command line */
 280
 281     if (!(pdb->env_db->cmd_line = HEAP_strdupA( pdb->heap, 0, cmd_line )))
 282         return FALSE;
 283
 284     return TRUE;
 285 }
 286
 287
 288 /***********************************************************************
 289  *           PROCESS_FreePDB
 290  *
 291  * Free a PDB and all associated storage.
 292  */
 293 void PROCESS_FreePDB( PDB *pdb )
 294 {
 295     PDB **pptr = &PROCESS_First;
 296
 297     ENV_FreeEnvironment( pdb );
 298     while (*pptr && (*pptr != pdb)) pptr = &(*pptr)->next;
 299     if (*pptr) *pptr = pdb->next;
 300     if (pdb->heap && (pdb->heap != pdb->system_heap)) HeapDestroy( pdb->heap );
 301     HeapFree( SystemHeap, 0, pdb );
 302 }
 303
 304
 305 /***********************************************************************
 306  *           PROCESS_CreatePDB
 307  *
 308  * Allocate and fill a PDB structure.
 309  * Runs in the context of the parent process.
 310  */
 311 static PDB *PROCESS_CreatePDB( PDB *parent, BOOL inherit )
 312 {
 313     PDB *pdb = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, sizeof(PDB) );
 314
 315     if (!pdb) return NULL;
 316     pdb->exit_code       = 0x103; /* STILL_ACTIVE */
 317     pdb->threads         = 1;
 318     pdb->running_threads = 1;
 319     pdb->ring0_threads   = 1;
 320     pdb->system_heap     = SystemHeap;
 321     pdb->parent          = parent;
 322     pdb->group           = pdb;
 323     pdb->priority        = 8;  /* Normal */
 324     pdb->heap            = pdb->system_heap;  /* will be changed later on */
 325     pdb->next            = PROCESS_First;
 326     pdb->winver          = 0xffff; /* to be determined */
 327     PROCESS_First = pdb;
 328     return pdb;
 329 }
 330
 331
 332 /***********************************************************************
 333  *           PROCESS_Init
 334  */
 335 BOOL PROCESS_Init(void)
 336 {
 337     TEB *teb;
 338     int server_fd;
 339
 340     /* Start the server */
 341     server_fd = CLIENT_InitServer();
 342
 343     /* Fill the initial process structure */
 344     initial_pdb.exit_code       = 0x103; /* STILL_ACTIVE */
 345     initial_pdb.threads         = 1;
 346     initial_pdb.running_threads = 1;
 347     initial_pdb.ring0_threads   = 1;
 348     initial_pdb.group           = &initial_pdb;
 349     initial_pdb.priority        = 8;  /* Normal */
 350     initial_pdb.flags           = PDB32_WIN16_PROC;
 351     initial_pdb.winver          = 0xffff; /* to be determined */
 352
 353     /* Initialize virtual memory management */
 354     if (!VIRTUAL_Init()) return FALSE;
 355
 356     /* Create the initial thread structure and socket pair */
 357     if (!(teb = THREAD_CreateInitialThread( &initial_pdb, server_fd ))) return FALSE;
 358
 359     /* Remember TEB selector of initial process for emergency use */
 360     SYSLEVEL_EmergencyTeb = teb->teb_sel;
 361
 362     /* Create the system heap */
 363     if (!(SystemHeap = HeapCreate( HEAP_GROWABLE, 0x10000, 0 ))) return FALSE;
 364     initial_pdb.system_heap = initial_pdb.heap = SystemHeap;
 365
 366     /* Initialize signal handling */
 367     if (!SIGNAL_Init()) return FALSE;
 368
 369     /* Create the environment DB of the first process */
 370     if (!PROCESS_CreateEnvDB()) return FALSE;
 371
 372     /* Create the SEGPTR heap */
 373     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 374
 375     /* Initialize the first process critical section */
 376     InitializeCriticalSection( &initial_pdb.crit_section );
 377
 378     return TRUE;
 379 }
 380
 381
 382 /***********************************************************************
 383  *           PROCESS_Start
 384  *
 385  * Startup routine of a new process. Called in the context of the new process.
 386  */
 387 void PROCESS_Start(void)
 388 {
 389     UINT cmdShow = 0;
 390     LPTHREAD_START_ROUTINE entry = NULL;
 391     PDB *pdb = PROCESS_Current();
 392     NE_MODULE *pModule = NE_GetPtr( pdb->module );
 393     OFSTRUCT *ofs = (OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo);
 394     IMAGE_OPTIONAL_HEADER *header = !pModule->module32? NULL :
 395                                     &PE_HEADER(pModule->module32)->OptionalHeader;
 396
 397     /* Get process type */
 398     enum { PROC_DOS, PROC_WIN16, PROC_WIN32 } type;
 399     if ( pdb->flags & PDB32_DOS_PROC )
 400         type = PROC_DOS;
 401     else if ( pdb->flags & PDB32_WIN16_PROC )
 402         type = PROC_WIN16;
 403     else
 404         type = PROC_WIN32;
 405
 406     /* Initialize the critical section */
 407     InitializeCriticalSection( &pdb->crit_section );
 408
 409     /* Create the heap */
 410     if (!(pdb->heap = HeapCreate( HEAP_GROWABLE,
 411                                   header? header->SizeOfHeapReserve : 0x10000,
 412                                   header? header->SizeOfHeapCommit  : 0 )))
 413         goto error;
 414     pdb->heap_list = pdb->heap;
 415
 416     /* Create the environment db */
 417     if (!PROCESS_CreateEnvDB()) goto error;
 418
 419     /* Create a task for this process */
 420     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 421         cmdShow = pdb->env_db->startup_info->wShowWindow;
 422     if (!TASK_Create( pModule, cmdShow ))
 423         goto error;
 424
 425     /* Perform Win16 specific process initialization */
 426     if ( type == PROC_WIN16 )
 427         if ( !NE_InitProcess( pModule ) )
 428             goto error;
 429
 430     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 431      *       context of the parent process.  Actually, the USER signal proc
 432      *       doesn't really care about that, but it *does* require that the
 433      *       startup parameters are correctly set up, so that GetProcessDword
 434      *       works.  Furthermore, before calling the USER signal proc the
 435      *       16-bit stack must be set up, which it is only after TASK_Create
 436      *       in the case of a 16-bit process. Thus, we send the signal here.
 437      */
 438
 439     /* Load USER32.DLL before calling UserSignalProc (relay debugging!) */
 440     LoadLibraryA( "USER32.DLL" );
 441
 442     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 443
 444     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );  /* for initial thread */
 445
 446     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 447
 448     /* Signal the parent process to continue */
 449     server_call( REQ_INIT_PROCESS_DONE );
 450
 451     /* Perform Win32 specific process initialization */
 452     if ( type == PROC_WIN32 )
 453     {
 454         /* Send the debug event to the debugger */
 455         entry = (LPTHREAD_START_ROUTINE)RVA_PTR(pModule->module32,
 456                                                 OptionalHeader.AddressOfEntryPoint);
 457         if (pdb->flags & PDB32_DEBUGGED)
 458             DEBUG_SendCreateProcessEvent( -1 /*FIXME*/, pModule->module32, entry );
 459
 460         /* Create 32-bit MODREF */
 461         if (!PE_CreateModule( pModule->module32, ofs, 0, FALSE )) goto error;
 462
 463         /* Increment EXE refcount */
 464         assert( pdb->exe_modref );
 465         pdb->exe_modref->refCount++;
 466
 467         /* Initialize thread-local storage */
 468         PE_InitTls();
 469     }
 470
 471     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );   /* FIXME: correct location? */
 472
 473     if ( (pdb->flags & PDB32_CONSOLE_PROC) || (pdb->flags & PDB32_DOS_PROC) )
 474         AllocConsole();
 475
 476     if ( type == PROC_WIN32 )
 477     {
 478         EnterCriticalSection( &pdb->crit_section );
 479         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 480         LeaveCriticalSection( &pdb->crit_section );
 481     }
 482
 483     /* If requested, add entry point breakpoint */
 484     if ( Options.debug && TASK_AddTaskEntryBreakpoint )
 485         TASK_AddTaskEntryBreakpoint( pdb->task );
 486
 487     /* Now call the entry point */
 488     PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 489
 490     switch ( type )
 491     {
 492     case PROC_DOS:
 493         TRACE_(relay)( "Starting DOS process\n" );
 494         DOSVM_Enter( NULL );
 495         ERR_(relay)( "DOSVM_Enter returned; should not happen!\n" );
 496         ExitProcess( 0 );
 497
 498     case PROC_WIN16:
 499         TRACE_(relay)( "Starting Win16 process\n" );
 500         TASK_CallToStart();
 501         ERR_(relay)( "TASK_CallToStart returned; should not happen!\n" );
 502         ExitProcess( 0 );
 503
 504     case PROC_WIN32:
 505         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 506         ExitProcess( entry(NULL) );
 507     }
 508
 509  error:
 510     ExitProcess( GetLastError() );
 511 }
 512
 513
 514 /***********************************************************************
 515  *           PROCESS_Create
 516  *
 517  * Create a new process database and associated info.
 518  */
 519 PDB *PROCESS_Create( NE_MODULE *pModule, LPCSTR cmd_line, LPCSTR env,
 520                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 521                      BOOL inherit, DWORD flags, STARTUPINFOA *startup,
 522                      PROCESS_INFORMATION *info )
 523 {
 524     HANDLE handles[2], load_done_evt = 0;
 525     DWORD exitcode, size;
 526     BOOL alloc_stack16;
 527     int server_thandle;
 528     struct new_process_request *req = get_req_buffer();
 529     TEB *teb = NULL;
 530     PDB *parent = PROCESS_Current();
 531     PDB *pdb = PROCESS_CreatePDB( parent, inherit );
 532
 533     if (!pdb) return NULL;
 534     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 535     if (!(load_done_evt = CreateEventA( NULL, TRUE, FALSE, NULL ))) goto error;
 536
 537     /* the DEBUG_ONLY_THIS_PROCESS flag seems simply equivalent
 538      * to DEBUG_PROCESS, contrary to Microsoft documentation (surprised?) */
 539     if (flags & DEBUG_ONLY_THIS_PROCESS)
 540         flags = (flags & ~DEBUG_ONLY_THIS_PROCESS) | DEBUG_PROCESS;
 541
 542     /* Create the process on the server side */
 543
 544     req->inherit      = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 545     req->inherit_all  = inherit;
 546     req->create_flags = flags;
 547     req->start_flags  = startup->dwFlags;
 548     req->event        = load_done_evt;
 549     if (startup->dwFlags & STARTF_USESTDHANDLES)
 550     {
 551         req->hstdin  = startup->hStdInput;
 552         req->hstdout = startup->hStdOutput;
 553         req->hstderr = startup->hStdError;
 554     }
 555     else
 556     {
 557         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 558         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 559         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 560     }
 561     req->cmd_show = startup->wShowWindow;
 562     req->env_ptr = (void*)env;  /* FIXME: hack */
 563     lstrcpynA( req->cmdline, cmd_line, server_remaining(req->cmdline) );
 564     if (server_call( REQ_NEW_PROCESS )) goto error;
 565     pdb->server_pid   = req->pid;
 566     info->hProcess    = req->handle;
 567     info->dwProcessId = (DWORD)pdb->server_pid;
 568
 569     if ((flags & DEBUG_PROCESS) ||
 570         ((parent->flags & PDB32_DEBUGGED) && !(flags & DEBUG_ONLY_THIS_PROCESS)))
 571         pdb->flags |= PDB32_DEBUGGED;
 572
 573     if (pModule->module32)   /* Win32 process */
 574     {
 575         IMAGE_OPTIONAL_HEADER *header = &PE_HEADER(pModule->module32)->OptionalHeader;
 576         size = header->SizeOfStackReserve;
 577         if (header->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
 578             pdb->flags |= PDB32_CONSOLE_PROC;
 579         alloc_stack16 = TRUE;
 580     }
 581     else if (!pModule->dos_image) /* Win16 process */
 582     {
 583         alloc_stack16 = FALSE;
 584         size = 0;
 585         pdb->flags |= PDB32_WIN16_PROC;
 586     }
 587     else  /* DOS process */
 588     {
 589         alloc_stack16 = FALSE;
 590         size = 0;
 591         pdb->flags |= PDB32_DOS_PROC;
 592     }
 593
 594     /* Create the main thread */
 595
 596     if (!(teb = THREAD_Create( pdb, flags & CREATE_SUSPENDED, size,
 597                                alloc_stack16, tsa, &server_thandle ))) goto error;
 598     info->hThread     = server_thandle;
 599     info->dwThreadId  = (DWORD)teb->tid;
 600     teb->startup = PROCESS_Start;
 601
 602     /* Pass module to new process (FIXME: hack) */
 603     pdb->module = pModule->self;
 604     SYSDEPS_SpawnThread( teb );
 605
 606     /* Wait until process is initialized (or initialization failed) */
 607     handles[0] = info->hProcess;
 608     handles[1] = load_done_evt;
 609
 610     switch ( WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) )
 611     {
 612     default:
 613         ERR_(process)( "WaitForMultipleObjects failed\n" );
 614         break;
 615
 616     case 0:
 617         /* Child initialization code returns error condition as exitcode */
 618         if ( GetExitCodeProcess( info->hProcess, &exitcode ) )
 619             SetLastError( exitcode );
 620         goto error;
 621
 622     case 1:
 623         /* Get 16-bit task up and running */
 624         if ( pdb->flags & PDB32_WIN16_PROC )
 625         {
 626             /* Post event to start the task */
 627             PostEvent16( pdb->task );
 628
 629             /* If we ourselves are a 16-bit task, we Yield() directly. */
 630             if ( parent->flags & PDB32_WIN16_PROC )
 631                 OldYield16();
 632         }
 633         break;
 634     }
 635
 636     CloseHandle( load_done_evt );
 637     load_done_evt = 0;
 638
 639     return pdb;
 640
 641 error:
 642     if (load_done_evt) CloseHandle( load_done_evt );
 643     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 644     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 645     PROCESS_FreePDB( pdb );
 646     return NULL;
 647 }
 648
 649
 650 /***********************************************************************
 651  *           ExitProcess   (KERNEL32.100)
 652  */
 653 void WINAPI ExitProcess( DWORD status )
 654 {
 655     EnterCriticalSection( &PROCESS_Current()->crit_section );
 656     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 657     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 658
 659     TASK_KillTask( 0 );
 660     TerminateProcess( GetCurrentProcess(), status );
 661 }
 662
 663 /***********************************************************************
 664  *           ExitProcess16   (KERNEL.466)
 665  */
 666 void WINAPI ExitProcess16( WORD status )
 667 {
 668     SYSLEVEL_ReleaseWin16Lock();
 669     ExitProcess( status );
 670 }
 671
 672 /******************************************************************************
 673  *           TerminateProcess   (KERNEL32.684)
 674  */
 675 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 676 {
 677     struct terminate_process_request *req = get_req_buffer();
 678     req->handle    = handle;
 679     req->exit_code = exit_code;
 680     return !server_call( REQ_TERMINATE_PROCESS );
 681 }
 682
 683
 684 /***********************************************************************
 685  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 686  * 'Of course you cannot directly access Windows internal structures'
 687  */
 688 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 689 {
 690     PDB *process = PROCESS_IdToPDB( dwProcessID );
 691     TDB *pTask;
 692     DWORD x, y;
 693
 694     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 695     if ( !process ) return 0;
 696
 697     switch ( offset )
 698     {
 699     case GPD_APP_COMPAT_FLAGS:
 700         pTask = (TDB *)GlobalLock16( process->task );
 701         return pTask? pTask->compat_flags : 0;
 702
 703     case GPD_LOAD_DONE_EVENT:
 704         return process->load_done_evt;
 705
 706     case GPD_HINSTANCE16:
 707         pTask = (TDB *)GlobalLock16( process->task );
 708         return pTask? pTask->hInstance : 0;
 709
 710     case GPD_WINDOWS_VERSION:
 711         pTask = (TDB *)GlobalLock16( process->task );
 712         return pTask? pTask->version : 0;
 713
 714     case GPD_THDB:
 715         if ( process != PROCESS_Current() ) return 0;
 716         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 717
 718     case GPD_PDB:
 719         return (DWORD)process;
 720
 721     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 722         return process->env_db->startup_info->hStdOutput;
 723
 724     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 725         return process->env_db->startup_info->hStdInput;
 726
 727     case GPD_STARTF_SHOWWINDOW:
 728         return process->env_db->startup_info->wShowWindow;
 729
 730     case GPD_STARTF_SIZE:
 731         x = process->env_db->startup_info->dwXSize;
 732         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 733         y = process->env_db->startup_info->dwYSize;
 734         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 735         return MAKELONG( x, y );
 736
 737     case GPD_STARTF_POSITION:
 738         x = process->env_db->startup_info->dwX;
 739         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 740         y = process->env_db->startup_info->dwY;
 741         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 742         return MAKELONG( x, y );
 743
 744     case GPD_STARTF_FLAGS:
 745         return process->env_db->startup_info->dwFlags;
 746
 747     case GPD_PARENT:
 748         return (DWORD)process->parent->server_pid;
 749
 750     case GPD_FLAGS:
 751         return process->flags;
 752
 753     case GPD_USERDATA:
 754         return process->process_dword;
 755
 756     default:
 757         ERR_(win32)("Unknown offset %d\n", offset );
 758         return 0;
 759     }
 760 }
 761
 762 /***********************************************************************
 763  *           SetProcessDword    (KERNEL.484)
 764  * 'Of course you cannot directly access Windows internal structures'
 765  */
 766 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 767 {
 768     PDB *process = PROCESS_IdToPDB( dwProcessID );
 769
 770     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 771     if ( !process ) return;
 772
 773     switch ( offset )
 774     {
 775     case GPD_APP_COMPAT_FLAGS:
 776     case GPD_LOAD_DONE_EVENT:
 777     case GPD_HINSTANCE16:
 778     case GPD_WINDOWS_VERSION:
 779     case GPD_THDB:
 780     case GPD_PDB:
 781     case GPD_STARTF_SHELLDATA:
 782     case GPD_STARTF_HOTKEY:
 783     case GPD_STARTF_SHOWWINDOW:
 784     case GPD_STARTF_SIZE:
 785     case GPD_STARTF_POSITION:
 786     case GPD_STARTF_FLAGS:
 787     case GPD_PARENT:
 788     case GPD_FLAGS:
 789         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 790         break;
 791
 792     case GPD_USERDATA:
 793         process->process_dword = value;
 794         break;
 795
 796     default:
 797         ERR_(win32)("Unknown offset %d\n", offset );
 798         break;
 799     }
 800 }
 801
 802
 803 /***********************************************************************
 804  *           GetCurrentProcess   (KERNEL32.198)
 805  */
 806 HANDLE WINAPI GetCurrentProcess(void)
 807 {
 808     return CURRENT_PROCESS_PSEUDOHANDLE;
 809 }
 810
 811
 812 /*********************************************************************
 813  *           OpenProcess   (KERNEL32.543)
 814  */
 815 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 816 {
 817     HANDLE ret = 0;
 818     struct open_process_request *req = get_req_buffer();
 819
 820     req->pid     = (void *)id;
 821     req->access  = access;
 822     req->inherit = inherit;
 823     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 824     return ret;
 825 }
 826
 827 /*********************************************************************
 828  *           MapProcessHandle   (KERNEL.483)
 829  */
 830 DWORD WINAPI MapProcessHandle( HANDLE handle )
 831 {
 832     DWORD ret = 0;
 833     struct get_process_info_request *req = get_req_buffer();
 834     req->handle = handle;
 835     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
 836     return ret;
 837 }
 838
 839 /***********************************************************************
 840  *           GetCurrentProcessId   (KERNEL32.199)
 841  */
 842 DWORD WINAPI GetCurrentProcessId(void)
 843 {
 844     return (DWORD)PROCESS_Current()->server_pid;
 845 }
 846
 847
 848 /***********************************************************************
 849  *           GetProcessHeap    (KERNEL32.259)
 850  */
 851 HANDLE WINAPI GetProcessHeap(void)
 852 {
 853     PDB *pdb = PROCESS_Current();
 854     return pdb->heap ? pdb->heap : SystemHeap;
 855 }
 856
 857
 858 /***********************************************************************
 859  *           GetThreadLocale    (KERNEL32.295)
 860  */
 861 LCID WINAPI GetThreadLocale(void)
 862 {
 863     return PROCESS_Current()->locale;
 864 }
 865
 866
 867 /***********************************************************************
 868  *           SetPriorityClass   (KERNEL32.503)
 869  */
 870 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
 871 {
 872     struct set_process_info_request *req = get_req_buffer();
 873     req->handle   = hprocess;
 874     req->priority = priorityclass;
 875     req->mask     = SET_PROCESS_INFO_PRIORITY;
 876     return !server_call( REQ_SET_PROCESS_INFO );
 877 }
 878
 879
 880 /***********************************************************************
 881  *           GetPriorityClass   (KERNEL32.250)
 882  */
 883 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
 884 {
 885     DWORD ret = 0;
 886     struct get_process_info_request *req = get_req_buffer();
 887     req->handle = hprocess;
 888     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
 889     return ret;
 890 }
 891
 892
 893 /***********************************************************************
 894  *          SetProcessAffinityMask   (KERNEL32.662)
 895  */
 896 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
 897 {
 898     struct set_process_info_request *req = get_req_buffer();
 899     req->handle   = hProcess;
 900     req->affinity = affmask;
 901     req->mask     = SET_PROCESS_INFO_AFFINITY;
 902     return !server_call( REQ_SET_PROCESS_INFO );
 903 }
 904
 905 /**********************************************************************
 906  *          GetProcessAffinityMask    (KERNEL32.373)
 907  */
 908 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
 909                                       LPDWORD lpProcessAffinityMask,
 910                                       LPDWORD lpSystemAffinityMask )
 911 {
 912     BOOL ret = FALSE;
 913     struct get_process_info_request *req = get_req_buffer();
 914     req->handle = hProcess;
 915     if (!server_call( REQ_GET_PROCESS_INFO ))
 916     {
 917         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
 918         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
 919         ret = TRUE;
 920     }
 921     return ret;
 922 }
 923
 924
 925 /***********************************************************************
 926  *           GetStdHandle    (KERNEL32.276)
 927  */
 928 HANDLE WINAPI GetStdHandle( DWORD std_handle )
 929 {
 930     PDB *pdb = PROCESS_Current();
 931
 932     switch(std_handle)
 933     {
 934     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
 935     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
 936     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
 937     }
 938     SetLastError( ERROR_INVALID_PARAMETER );
 939     return INVALID_HANDLE_VALUE;
 940 }
 941
 942
 943 /***********************************************************************
 944  *           SetStdHandle    (KERNEL32.506)
 945  */
 946 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
 947 {
 948     PDB *pdb = PROCESS_Current();
 949     /* FIXME: should we close the previous handle? */
 950     switch(std_handle)
 951     {
 952     case STD_INPUT_HANDLE:
 953         pdb->env_db->hStdin = handle;
 954         return TRUE;
 955     case STD_OUTPUT_HANDLE:
 956         pdb->env_db->hStdout = handle;
 957         return TRUE;
 958     case STD_ERROR_HANDLE:
 959         pdb->env_db->hStderr = handle;
 960         return TRUE;
 961     }
 962     SetLastError( ERROR_INVALID_PARAMETER );
 963     return FALSE;
 964 }
 965
 966 /***********************************************************************
 967  *           GetProcessVersion    (KERNEL32)
 968  */
 969 DWORD WINAPI GetProcessVersion( DWORD processid )
 970 {
 971     TDB *pTask;
 972     PDB *pdb = PROCESS_IdToPDB( processid );
 973
 974     if (!pdb) return 0;
 975     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
 976     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
 977 }
 978
 979 /***********************************************************************
 980  *           GetProcessFlags    (KERNEL32)
 981  */
 982 DWORD WINAPI GetProcessFlags( DWORD processid )
 983 {
 984     PDB *pdb = PROCESS_IdToPDB( processid );
 985     if (!pdb) return 0;
 986     return pdb->flags;
 987 }
 988
 989 /***********************************************************************
 990  *              SetProcessWorkingSetSize        [KERNEL32.662]
 991  * Sets the min/max working set sizes for a specified process.
 992  *
 993  * PARAMS
 994  *    hProcess [I] Handle to the process of interest
 995  *    minset   [I] Specifies minimum working set size
 996  *    maxset   [I] Specifies maximum working set size
 997  *
 998  * RETURNS  STD
 999  */
1000 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1001                                        DWORD maxset)
1002 {
1003     FIXME_(process)("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1004     if(( minset == -1) && (maxset == -1)) {
1005         /* Trim the working set to zero */
1006         /* Swap the process out of physical RAM */
1007     }
1008     return TRUE;
1009 }
1010
1011 /***********************************************************************
1012  *           GetProcessWorkingSetSize    (KERNEL32)
1013  */
1014 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1015                                        LPDWORD maxset)
1016 {
1017         FIXME_(process)("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1018         /* 32 MB working set size */
1019         if (minset) *minset = 32*1024*1024;
1020         if (maxset) *maxset = 32*1024*1024;
1021         return TRUE;
1022 }
1023
1024 /***********************************************************************
1025  *           SetProcessShutdownParameters    (KERNEL32)
1026  *
1027  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1028  * Now tracks changes made (but does not act on these changes)
1029  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1030  * It really shouldn't be here, but I'll move it when it's been checked!
1031  */
1032 #define SHUTDOWN_NORETRY 1
1033 static unsigned int shutdown_noretry = 0;
1034 static unsigned int shutdown_priority = 0x280L;
1035 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1036 {
1037     if (flags & SHUTDOWN_NORETRY)
1038       shutdown_noretry = 1;
1039     else
1040       shutdown_noretry = 0;
1041     if (level > 0x100L && level < 0x3FFL)
1042       shutdown_priority = level;
1043     else
1044       {
1045         ERR_(process)("invalid priority level 0x%08lx\n", level);
1046         return FALSE;
1047       }
1048     return TRUE;
1049 }
1050
1051
1052 /***********************************************************************
1053  * GetProcessShutdownParameters                 (KERNEL32)
1054  *
1055  */
1056 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1057                                             LPDWORD lpdwFlags )
1058 {
1059   (*lpdwLevel) = shutdown_priority;
1060   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1061   return TRUE;
1062 }
1063 /***********************************************************************
1064  *           SetProcessPriorityBoost    (KERNEL32)
1065  */
1066 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1067 {
1068     FIXME_(process)("(%d,%d): stub\n",hprocess,disableboost);
1069     /* Say we can do it. I doubt the program will notice that we don't. */
1070     return TRUE;
1071 }
1072
1073
1074 /***********************************************************************
1075  *           ReadProcessMemory                  (KERNEL32)
1076  */
1077 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1078                                LPDWORD bytes_read )
1079 {
1080     struct read_process_memory_request *req = get_req_buffer();
1081     unsigned int offset = (unsigned int)addr % sizeof(int);
1082     unsigned int max = server_remaining( req->data );  /* max length in one request */
1083     unsigned int pos;
1084
1085     if (bytes_read) *bytes_read = size;
1086
1087     /* first time, read total length to check for permissions */
1088     req->handle = process;
1089     req->addr   = (char *)addr - offset;
1090     req->len    = (size + offset + sizeof(int) - 1) / sizeof(int);
1091     if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1092
1093     if (size <= max - offset)
1094     {
1095         memcpy( buffer, (char *)req->data + offset, size );
1096         return TRUE;
1097     }
1098
1099     /* now take care of the remaining data */
1100     memcpy( buffer, (char *)req->data + offset, max - offset );
1101     pos = max - offset;
1102     size -= pos;
1103     while (size)
1104     {
1105         if (max > size) max = size;
1106         req->handle = process;
1107         req->addr   = (char *)addr + pos;
1108         req->len    = (max + sizeof(int) - 1) / sizeof(int);
1109         if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1110         memcpy( (char *)buffer + pos, (char *)req->data, max );
1111         size -= max;
1112         pos += max;
1113     }
1114     return TRUE;
1115
1116  error:
1117     if (bytes_read) *bytes_read = 0;
1118     return FALSE;
1119 }
1120
1121
1122 /***********************************************************************
1123  *           WriteProcessMemory                 (KERNEL32)
1124  */
1125 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1126                                 LPDWORD bytes_written )
1127 {
1128     unsigned int first_offset, last_offset;
1129     struct write_process_memory_request *req = get_req_buffer();
1130     unsigned int max = server_remaining( req->data );  /* max length in one request */
1131     unsigned int pos, last_mask;
1132
1133     if (!size)
1134     {
1135         SetLastError( ERROR_INVALID_PARAMETER );
1136         return FALSE;
1137     }
1138     if (bytes_written) *bytes_written = size;
1139
1140     /* compute the mask for the first int */
1141     req->first_mask = ~0;
1142     first_offset = (unsigned int)addr % sizeof(int);
1143     memset( &req->first_mask, 0, first_offset );
1144
1145     /* compute the mask for the last int */
1146     last_offset = (size + first_offset) % sizeof(int);
1147     last_mask = 0;
1148     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1149
1150     req->handle = process;
1151     req->addr = (char *)addr - first_offset;
1152     /* for the first request, use the total length */
1153     req->len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1154
1155     if (size + first_offset < max)  /* we can do it in one round */
1156     {
1157         memcpy( (char *)req->data + first_offset, buffer, size );
1158         req->last_mask = last_mask;
1159         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1160         return TRUE;
1161     }
1162
1163     /* needs multiple server calls */
1164
1165     memcpy( (char *)req->data + first_offset, buffer, max - first_offset );
1166     req->last_mask = ~0;
1167     if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1168     pos = max - first_offset;
1169     size -= pos;
1170     while (size)
1171     {
1172         if (size <= max)  /* last one */
1173         {
1174             req->last_mask = last_mask;
1175             max = size;
1176         }
1177         req->handle = process;
1178         req->addr = (char *)addr + pos;
1179         req->len = (max + sizeof(int) - 1) / sizeof(int);
1180         req->first_mask = ~0;
1181         memcpy( req->data, buffer + pos, max );
1182         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1183         pos += max;
1184         size -= max;
1185     }
1186     return TRUE;
1187
1188  error:
1189     if (bytes_written) *bytes_written = 0;
1190     return FALSE;
1191
1192 }
1193
1194
1195 /***********************************************************************
1196  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1197  *
1198  * A service process calls this function to ensure that it continues to run
1199  * even after a user logged off.
1200  */
1201 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1202 {
1203         /* I don't think that Wine needs to do anything in that function */
1204         return 1; /* success */
1205 }
1206
1207 /***********************************************************************
1208  * GetExitCodeProcess [KERNEL32.325]
1209  *
1210  * Gets termination status of specified process
1211  *
1212  * RETURNS
1213  *   Success: TRUE
1214  *   Failure: FALSE
1215  */
1216 BOOL WINAPI GetExitCodeProcess(
1217     HANDLE hProcess,  /* [I] handle to the process */
1218     LPDWORD lpExitCode) /* [O] address to receive termination status */
1219 {
1220     BOOL ret = FALSE;
1221     struct get_process_info_request *req = get_req_buffer();
1222     req->handle = hProcess;
1223     if (!server_call( REQ_GET_PROCESS_INFO ))
1224     {
1225         if (lpExitCode) *lpExitCode = req->exit_code;
1226         ret = TRUE;
1227     }
1228     return ret;
1229 }
1230
1231
1232 /***********************************************************************
1233  * GetProcessHeaps [KERNEL32.376]
1234  */
1235 DWORD WINAPI GetProcessHeaps(DWORD nrofheaps,HANDLE *heaps) {
1236         FIXME_(win32)("(%ld,%p), incomplete implementation.\n",nrofheaps,heaps);
1237
1238         if (nrofheaps) {
1239                 heaps[0] = GetProcessHeap();
1240                 /* ... probably SystemHeap too ? */
1241                 return 1;
1242         }
1243         /* number of available heaps */
1244         return 1;
1245 }
1246
1247
1248 /***********************************************************************
1249  *           SetErrorMode   (KERNEL32.486)
1250  */
1251 UINT WINAPI SetErrorMode( UINT mode )
1252 {
1253     UINT old = PROCESS_Current()->error_mode;
1254     PROCESS_Current()->error_mode = mode;
1255     return old;
1256 }