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 "wine/exception.h"
  13 #include "process.h"
  14 #include "module.h"
  15 #include "neexe.h"
  16 #include "file.h"
  17 #include "global.h"
  18 #include "heap.h"
  19 #include "task.h"
  20 #include "ldt.h"
  21 #include "syslevel.h"
  22 #include "thread.h"
  23 #include "winerror.h"
  24 #include "pe_image.h"
  25 #include "server.h"
  26 #include "options.h"
  27 #include "callback.h"
  28 #include "debugtools.h"
  29
  30 DEFAULT_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->filename : "";
  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 void PROCESS_CallUserSignalProc( UINT uCode, DWORD dwThreadId, HMODULE hModule )
 189 {
 190     DWORD flags = PROCESS_Current()->flags;
 191     DWORD startup_flags = PROCESS_Current()->env_db->startup_info->dwFlags;
 192     DWORD dwFlags = 0;
 193
 194     /* Determine dwFlags */
 195
 196     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 197
 198     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 199
 200     if ( dwFlags & USIG_FLAGS_GUI )
 201     {
 202         /* Feedback defaults to ON */
 203         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 204             dwFlags |= USIG_FLAGS_FEEDBACK;
 205     }
 206     else
 207     {
 208         /* Feedback defaults to OFF */
 209         if (startup_flags & STARTF_FORCEONFEEDBACK)
 210             dwFlags |= USIG_FLAGS_FEEDBACK;
 211     }
 212
 213     /* Convert module handle to 16-bit */
 214
 215     if ( HIWORD( hModule ) )
 216         hModule = MapHModuleLS( hModule );
 217
 218     /* Call USER signal proc */
 219
 220     if ( Callout.UserSignalProc )
 221     {
 222         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 223             Callout.UserSignalProc( uCode, dwThreadId, dwFlags, hModule );
 224         else
 225             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 226     }
 227 }
 228
 229 /***********************************************************************
 230  *           PROCESS_CreateEnvDB
 231  *
 232  * Create the env DB for a newly started process.
 233  */
 234 static BOOL PROCESS_CreateEnvDB(void)
 235 {
 236     struct init_process_request *req = get_req_buffer();
 237     STARTUPINFOA *startup;
 238     ENVDB *env_db;
 239     char cmd_line[4096];
 240     PDB *pdb = PROCESS_Current();
 241
 242     /* Allocate the env DB */
 243
 244     if (!(env_db = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(ENVDB) )))
 245         return FALSE;
 246     pdb->env_db = env_db;
 247     InitializeCriticalSection( &env_db->section );
 248
 249     /* Allocate and fill the startup info */
 250     if (!(startup = HeapAlloc( pdb->heap, HEAP_ZERO_MEMORY, sizeof(STARTUPINFOA) )))
 251         return FALSE;
 252     env_db->startup_info = startup;
 253
 254     /* Retrieve startup info from the server */
 255
 256     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 257     startup->dwFlags     = req->start_flags;
 258     startup->wShowWindow = req->cmd_show;
 259     env_db->hStdin  = startup->hStdInput  = req->hstdin;
 260     env_db->hStdout = startup->hStdOutput = req->hstdout;
 261     env_db->hStderr = startup->hStdError  = req->hstderr;
 262     lstrcpynA( cmd_line, req->cmdline, sizeof(cmd_line) );
 263
 264     /* Copy the parent environment */
 265
 266     if (!ENV_InheritEnvironment( pdb, req->env_ptr )) return FALSE;
 267
 268     /* Copy the command line */
 269
 270     if (!(pdb->env_db->cmd_line = HEAP_strdupA( pdb->heap, 0, cmd_line )))
 271         return FALSE;
 272
 273     return TRUE;
 274 }
 275
 276
 277 /***********************************************************************
 278  *           PROCESS_FreePDB
 279  *
 280  * Free a PDB and all associated storage.
 281  */
 282 void PROCESS_FreePDB( PDB *pdb )
 283 {
 284     PDB **pptr = &PROCESS_First;
 285
 286     ENV_FreeEnvironment( pdb );
 287     while (*pptr && (*pptr != pdb)) pptr = &(*pptr)->next;
 288     if (*pptr) *pptr = pdb->next;
 289     if (pdb->heap && (pdb->heap != pdb->system_heap)) HeapDestroy( pdb->heap );
 290     HeapFree( SystemHeap, 0, pdb );
 291 }
 292
 293
 294 /***********************************************************************
 295  *           PROCESS_CreatePDB
 296  *
 297  * Allocate and fill a PDB structure.
 298  * Runs in the context of the parent process.
 299  */
 300 static PDB *PROCESS_CreatePDB( PDB *parent, BOOL inherit )
 301 {
 302     PDB *pdb = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, sizeof(PDB) );
 303
 304     if (!pdb) return NULL;
 305     pdb->exit_code       = 0x103; /* STILL_ACTIVE */
 306     pdb->threads         = 1;
 307     pdb->running_threads = 1;
 308     pdb->ring0_threads   = 1;
 309     pdb->system_heap     = SystemHeap;
 310     pdb->parent          = parent;
 311     pdb->group           = pdb;
 312     pdb->priority        = 8;  /* Normal */
 313     pdb->heap            = pdb->system_heap;  /* will be changed later on */
 314     pdb->next            = PROCESS_First;
 315     pdb->winver          = 0xffff; /* to be determined */
 316     pdb->main_queue      = INVALID_HANDLE_VALUE16;
 317     PROCESS_First = pdb;
 318     return pdb;
 319 }
 320
 321
 322 /***********************************************************************
 323  *           PROCESS_Init
 324  */
 325 BOOL PROCESS_Init(void)
 326 {
 327     TEB *teb;
 328     int server_fd;
 329
 330     /* Start the server */
 331     server_fd = CLIENT_InitServer();
 332
 333     /* Fill the initial process structure */
 334     initial_pdb.exit_code       = 0x103; /* STILL_ACTIVE */
 335     initial_pdb.threads         = 1;
 336     initial_pdb.running_threads = 1;
 337     initial_pdb.ring0_threads   = 1;
 338     initial_pdb.group           = &initial_pdb;
 339     initial_pdb.priority        = 8;  /* Normal */
 340     initial_pdb.flags           = PDB32_WIN16_PROC;
 341     initial_pdb.winver          = 0xffff; /* to be determined */
 342     initial_pdb.main_queue      = INVALID_HANDLE_VALUE16;
 343
 344     /* Initialize virtual memory management */
 345     if (!VIRTUAL_Init()) return FALSE;
 346
 347     /* Create the initial thread structure and socket pair */
 348     if (!(teb = THREAD_CreateInitialThread( &initial_pdb, server_fd ))) return FALSE;
 349
 350     /* Remember TEB selector of initial process for emergency use */
 351     SYSLEVEL_EmergencyTeb = teb->teb_sel;
 352
 353     /* Create the system heap */
 354     if (!(SystemHeap = HeapCreate( HEAP_GROWABLE, 0x10000, 0 ))) return FALSE;
 355     initial_pdb.system_heap = initial_pdb.heap = SystemHeap;
 356
 357     /* Create the idle event for the initial process
 358        FIXME 1: Shouldn't we call UserSignalProc for the initial process too?
 359        FIXME 2: It seems to me that the initial pdb becomes never freed, so I don't now
 360                 where to release the idle event for the initial process.
 361     */
 362     initial_pdb.idle_event = CreateEventA ( NULL, TRUE, FALSE, NULL );
 363     initial_pdb.idle_event = ConvertToGlobalHandle ( initial_pdb.idle_event );
 364
 365     /* Initialize signal handling */
 366     if (!SIGNAL_Init()) return FALSE;
 367
 368     /* Create the environment DB of the first process */
 369     if (!PROCESS_CreateEnvDB()) return FALSE;
 370
 371     /* Create the SEGPTR heap */
 372     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 373
 374     /* Initialize the first process critical section */
 375     InitializeCriticalSection( &initial_pdb.crit_section );
 376
 377     return TRUE;
 378 }
 379
 380
 381 /***********************************************************************
 382  *           PROCESS_Start
 383  *
 384  * Startup routine of a new process. Called in the context of the new process.
 385  */
 386 void PROCESS_Start(void)
 387 {
 388     UINT cmdShow = SW_SHOWNORMAL;
 389     LPTHREAD_START_ROUTINE entry = NULL;
 390     PDB *pdb = PROCESS_Current();
 391     NE_MODULE *pModule = NE_GetPtr( pdb->module );
 392     LPCSTR filename = ((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName;
 393     IMAGE_OPTIONAL_HEADER *header = !pModule->module32? NULL :
 394                                     &PE_HEADER(pModule->module32)->OptionalHeader;
 395
 396     /* Get process type */
 397     enum { PROC_DOS, PROC_WIN16, PROC_WIN32 } type;
 398     if ( pdb->flags & PDB32_DOS_PROC )
 399         type = PROC_DOS;
 400     else if ( pdb->flags & PDB32_WIN16_PROC )
 401         type = PROC_WIN16;
 402     else
 403         type = PROC_WIN32;
 404
 405     /* Initialize the critical section */
 406     InitializeCriticalSection( &pdb->crit_section );
 407
 408     /* Create the heap */
 409     if (!(pdb->heap = HeapCreate( HEAP_GROWABLE,
 410                                   header? header->SizeOfHeapReserve : 0x10000,
 411                                   header? header->SizeOfHeapCommit  : 0 )))
 412         goto error;
 413     pdb->heap_list = pdb->heap;
 414
 415     /* Create the environment db */
 416     if (!PROCESS_CreateEnvDB()) goto error;
 417
 418     /* Create a task for this process */
 419     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 420         cmdShow = pdb->env_db->startup_info->wShowWindow;
 421     if (!TASK_Create( pModule, cmdShow ))
 422         goto error;
 423
 424     /* Load all process modules */
 425     switch ( type )
 426     {
 427     case PROC_WIN16:
 428         if ( !NE_InitProcess( pModule ) )
 429             goto error;
 430         break;
 431
 432     case PROC_WIN32:
 433         /* Create 32-bit MODREF */
 434         if ( !PE_CreateModule( pModule->module32, filename, 0, FALSE ) )
 435             goto error;
 436
 437         /* Increment EXE refcount */
 438         assert( pdb->exe_modref );
 439         pdb->exe_modref->refCount++;
 440
 441         /* Retrieve entry point address */
 442         entry = (LPTHREAD_START_ROUTINE)RVA_PTR(pModule->module32,
 443                                                 OptionalHeader.AddressOfEntryPoint);
 444         break;
 445
 446     case PROC_DOS:
 447         /* FIXME: move DOS startup code here */
 448         break;
 449     }
 450
 451
 452     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 453      *       context of the parent process.  Actually, the USER signal proc
 454      *       doesn't really care about that, but it *does* require that the
 455      *       startup parameters are correctly set up, so that GetProcessDword
 456      *       works.  Furthermore, before calling the USER signal proc the
 457      *       16-bit stack must be set up, which it is only after TASK_Create
 458      *       in the case of a 16-bit process. Thus, we send the signal here.
 459      */
 460
 461     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0, 0 );
 462     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, GetCurrentThreadId(), 0 );
 463     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0, 0 );
 464     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0, 0 );
 465
 466     /* Signal the parent process to continue */
 467     server_call( REQ_INIT_PROCESS_DONE );
 468
 469     /* Send all required start-up debugger events */
 470     if ( type == PROC_WIN32 && (pdb->flags & PDB32_DEBUGGED) )
 471     {
 472         EnterCriticalSection( &pdb->crit_section );
 473
 474         DEBUG_SendCreateProcessEvent( -1 /*FIXME*/, pModule->module32, entry );
 475         MODULE_SendLoadDLLEvents();
 476
 477         LeaveCriticalSection( &pdb->crit_section );
 478     }
 479
 480     if ( (pdb->flags & PDB32_CONSOLE_PROC) || (pdb->flags & PDB32_DOS_PROC) )
 481         AllocConsole();
 482
 483     /* Perform Win32 specific process initialization */
 484     if ( type == PROC_WIN32 )
 485     {
 486         EnterCriticalSection( &pdb->crit_section );
 487
 488         PE_InitTls();
 489         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 490
 491         LeaveCriticalSection( &pdb->crit_section );
 492     }
 493
 494     /* If requested, add entry point breakpoint */
 495     if ( Options.debug && TASK_AddTaskEntryBreakpoint )
 496         TASK_AddTaskEntryBreakpoint( pdb->task );
 497
 498     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 499     if ( type != PROC_WIN16 && (pdb->flags & PDB32_CONSOLE_PROC))
 500         PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0, 0 );
 501
 502     switch ( type )
 503     {
 504     case PROC_DOS:
 505         TRACE_(relay)( "Starting DOS process\n" );
 506         DOSVM_Enter( NULL );
 507         ERR_(relay)( "DOSVM_Enter returned; should not happen!\n" );
 508         ExitProcess( 0 );
 509
 510     case PROC_WIN16:
 511         TRACE_(relay)( "Starting Win16 process\n" );
 512         TASK_CallToStart();
 513         ERR_(relay)( "TASK_CallToStart returned; should not happen!\n" );
 514         ExitProcess( 0 );
 515
 516     case PROC_WIN32:
 517         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 518         ExitProcess( entry(NULL) );
 519     }
 520
 521  error:
 522     ExitProcess( GetLastError() );
 523 }
 524
 525
 526 /***********************************************************************
 527  *           PROCESS_Create
 528  *
 529  * Create a new process database and associated info.
 530  */
 531 PDB *PROCESS_Create( NE_MODULE *pModule, LPCSTR cmd_line, LPCSTR env,
 532                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 533                      BOOL inherit, DWORD flags, STARTUPINFOA *startup,
 534                      PROCESS_INFORMATION *info )
 535 {
 536     HANDLE handles[2], load_done_evt = 0;
 537     DWORD exitcode, size;
 538     BOOL alloc_stack16;
 539     int server_thandle;
 540     struct new_process_request *req = get_req_buffer();
 541     TEB *teb = NULL;
 542     PDB *parent = PROCESS_Current();
 543     PDB *pdb = PROCESS_CreatePDB( parent, inherit );
 544
 545     if (!pdb) return NULL;
 546     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 547     if (!(load_done_evt = CreateEventA( NULL, TRUE, FALSE, NULL ))) goto error;
 548
 549     /* Create the process on the server side */
 550
 551     req->inherit      = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 552     req->inherit_all  = inherit;
 553     req->create_flags = flags;
 554     req->start_flags  = startup->dwFlags;
 555     req->event        = load_done_evt;
 556     if (startup->dwFlags & STARTF_USESTDHANDLES)
 557     {
 558         req->hstdin  = startup->hStdInput;
 559         req->hstdout = startup->hStdOutput;
 560         req->hstderr = startup->hStdError;
 561     }
 562     else
 563     {
 564         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 565         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 566         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 567     }
 568     req->cmd_show = startup->wShowWindow;
 569     req->env_ptr = (void*)env;  /* FIXME: hack */
 570     lstrcpynA( req->cmdline, cmd_line, server_remaining(req->cmdline) );
 571     if (server_call( REQ_NEW_PROCESS )) goto error;
 572     pdb->server_pid   = req->pid;
 573     info->hProcess    = req->handle;
 574     info->dwProcessId = (DWORD)pdb->server_pid;
 575
 576     if ((flags & DEBUG_PROCESS) ||
 577         ((parent->flags & PDB32_DEBUGGED) && !(flags & DEBUG_ONLY_THIS_PROCESS)))
 578         pdb->flags |= PDB32_DEBUGGED;
 579
 580     if (pModule->module32)   /* Win32 process */
 581     {
 582         IMAGE_OPTIONAL_HEADER *header = &PE_HEADER(pModule->module32)->OptionalHeader;
 583         size = header->SizeOfStackReserve;
 584         if (header->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
 585             pdb->flags |= PDB32_CONSOLE_PROC;
 586         alloc_stack16 = TRUE;
 587     }
 588     else if (!pModule->dos_image) /* Win16 process */
 589     {
 590         alloc_stack16 = FALSE;
 591         size = 0;
 592         pdb->flags |= PDB32_WIN16_PROC;
 593     }
 594     else  /* DOS process */
 595     {
 596         alloc_stack16 = FALSE;
 597         size = 0;
 598         pdb->flags |= PDB32_DOS_PROC;
 599     }
 600
 601     /* Create the main thread */
 602
 603     if (!(teb = THREAD_Create( pdb, flags & CREATE_SUSPENDED, size,
 604                                alloc_stack16, tsa, &server_thandle ))) goto error;
 605     info->hThread     = server_thandle;
 606     info->dwThreadId  = (DWORD)teb->tid;
 607     teb->startup = PROCESS_Start;
 608
 609     /* Pass module to new process (FIXME: hack) */
 610     pdb->module = pModule->self;
 611     SYSDEPS_SpawnThread( teb );
 612
 613     /* Wait until process is initialized (or initialization failed) */
 614     handles[0] = info->hProcess;
 615     handles[1] = load_done_evt;
 616
 617     switch ( WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) )
 618     {
 619     default:
 620         ERR( "WaitForMultipleObjects failed\n" );
 621         break;
 622
 623     case 0:
 624         /* Child initialization code returns error condition as exitcode */
 625         if ( GetExitCodeProcess( info->hProcess, &exitcode ) )
 626             SetLastError( exitcode );
 627         goto error;
 628
 629     case 1:
 630         /* Get 16-bit task up and running */
 631         if ( pdb->flags & PDB32_WIN16_PROC )
 632         {
 633             /* Post event to start the task */
 634             PostEvent16( pdb->task );
 635
 636             /* If we ourselves are a 16-bit task, we Yield() directly. */
 637             if ( parent->flags & PDB32_WIN16_PROC )
 638                 OldYield16();
 639         }
 640         break;
 641     }
 642
 643     CloseHandle( load_done_evt );
 644     load_done_evt = 0;
 645
 646     return pdb;
 647
 648 error:
 649     if (load_done_evt) CloseHandle( load_done_evt );
 650     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 651     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 652     PROCESS_FreePDB( pdb );
 653     return NULL;
 654 }
 655
 656
 657 /***********************************************************************
 658  *           ExitProcess   (KERNEL32.100)
 659  */
 660 void WINAPI ExitProcess( DWORD status )
 661 {
 662     EnterCriticalSection( &PROCESS_Current()->crit_section );
 663     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 664     LeaveCriticalSection( &PROCESS_Current()->crit_section );
 665
 666     TASK_KillTask( 0 );
 667     TerminateProcess( GetCurrentProcess(), status );
 668 }
 669
 670 /***********************************************************************
 671  *           ExitProcess16   (KERNEL.466)
 672  */
 673 void WINAPI ExitProcess16( WORD status )
 674 {
 675     SYSLEVEL_ReleaseWin16Lock();
 676     ExitProcess( status );
 677 }
 678
 679 /******************************************************************************
 680  *           TerminateProcess   (KERNEL32.684)
 681  */
 682 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 683 {
 684     struct terminate_process_request *req = get_req_buffer();
 685     req->handle    = handle;
 686     req->exit_code = exit_code;
 687     return !server_call( REQ_TERMINATE_PROCESS );
 688 }
 689
 690
 691 /***********************************************************************
 692  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 693  * 'Of course you cannot directly access Windows internal structures'
 694  */
 695 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 696 {
 697     PDB *process = PROCESS_IdToPDB( dwProcessID );
 698     TDB *pTask;
 699     DWORD x, y;
 700
 701     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 702     if ( !process ) return 0;
 703
 704     switch ( offset )
 705     {
 706     case GPD_APP_COMPAT_FLAGS:
 707         pTask = (TDB *)GlobalLock16( process->task );
 708         return pTask? pTask->compat_flags : 0;
 709
 710     case GPD_LOAD_DONE_EVENT:
 711         return process->load_done_evt;
 712
 713     case GPD_HINSTANCE16:
 714         pTask = (TDB *)GlobalLock16( process->task );
 715         return pTask? pTask->hInstance : 0;
 716
 717     case GPD_WINDOWS_VERSION:
 718         pTask = (TDB *)GlobalLock16( process->task );
 719         return pTask? pTask->version : 0;
 720
 721     case GPD_THDB:
 722         if ( process != PROCESS_Current() ) return 0;
 723         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 724
 725     case GPD_PDB:
 726         return (DWORD)process;
 727
 728     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 729         return process->env_db->startup_info->hStdOutput;
 730
 731     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 732         return process->env_db->startup_info->hStdInput;
 733
 734     case GPD_STARTF_SHOWWINDOW:
 735         return process->env_db->startup_info->wShowWindow;
 736
 737     case GPD_STARTF_SIZE:
 738         x = process->env_db->startup_info->dwXSize;
 739         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 740         y = process->env_db->startup_info->dwYSize;
 741         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 742         return MAKELONG( x, y );
 743
 744     case GPD_STARTF_POSITION:
 745         x = process->env_db->startup_info->dwX;
 746         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 747         y = process->env_db->startup_info->dwY;
 748         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 749         return MAKELONG( x, y );
 750
 751     case GPD_STARTF_FLAGS:
 752         return process->env_db->startup_info->dwFlags;
 753
 754     case GPD_PARENT:
 755         return (DWORD)process->parent->server_pid;
 756
 757     case GPD_FLAGS:
 758         return process->flags;
 759
 760     case GPD_USERDATA:
 761         return process->process_dword;
 762
 763     default:
 764         ERR_(win32)("Unknown offset %d\n", offset );
 765         return 0;
 766     }
 767 }
 768
 769 /***********************************************************************
 770  *           SetProcessDword    (KERNEL.484)
 771  * 'Of course you cannot directly access Windows internal structures'
 772  */
 773 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 774 {
 775     PDB *process = PROCESS_IdToPDB( dwProcessID );
 776
 777     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 778     if ( !process ) return;
 779
 780     switch ( offset )
 781     {
 782     case GPD_APP_COMPAT_FLAGS:
 783     case GPD_LOAD_DONE_EVENT:
 784     case GPD_HINSTANCE16:
 785     case GPD_WINDOWS_VERSION:
 786     case GPD_THDB:
 787     case GPD_PDB:
 788     case GPD_STARTF_SHELLDATA:
 789     case GPD_STARTF_HOTKEY:
 790     case GPD_STARTF_SHOWWINDOW:
 791     case GPD_STARTF_SIZE:
 792     case GPD_STARTF_POSITION:
 793     case GPD_STARTF_FLAGS:
 794     case GPD_PARENT:
 795     case GPD_FLAGS:
 796         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 797         break;
 798
 799     case GPD_USERDATA:
 800         process->process_dword = value;
 801         break;
 802
 803     default:
 804         ERR_(win32)("Unknown offset %d\n", offset );
 805         break;
 806     }
 807 }
 808
 809
 810 /***********************************************************************
 811  *           GetCurrentProcess   (KERNEL32.198)
 812  */
 813 HANDLE WINAPI GetCurrentProcess(void)
 814 {
 815     return CURRENT_PROCESS_PSEUDOHANDLE;
 816 }
 817
 818
 819 /*********************************************************************
 820  *           OpenProcess   (KERNEL32.543)
 821  */
 822 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 823 {
 824     HANDLE ret = 0;
 825     struct open_process_request *req = get_req_buffer();
 826
 827     req->pid     = (void *)id;
 828     req->access  = access;
 829     req->inherit = inherit;
 830     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 831     return ret;
 832 }
 833
 834 /*********************************************************************
 835  *           MapProcessHandle   (KERNEL.483)
 836  */
 837 DWORD WINAPI MapProcessHandle( HANDLE handle )
 838 {
 839     DWORD ret = 0;
 840     struct get_process_info_request *req = get_req_buffer();
 841     req->handle = handle;
 842     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
 843     return ret;
 844 }
 845
 846 /***********************************************************************
 847  *           GetCurrentProcessId   (KERNEL32.199)
 848  */
 849 DWORD WINAPI GetCurrentProcessId(void)
 850 {
 851     return (DWORD)PROCESS_Current()->server_pid;
 852 }
 853
 854
 855 /***********************************************************************
 856  *           GetProcessHeap    (KERNEL32.259)
 857  */
 858 HANDLE WINAPI GetProcessHeap(void)
 859 {
 860     PDB *pdb = PROCESS_Current();
 861     return pdb->heap ? pdb->heap : SystemHeap;
 862 }
 863
 864
 865 /***********************************************************************
 866  *           GetThreadLocale    (KERNEL32.295)
 867  */
 868 LCID WINAPI GetThreadLocale(void)
 869 {
 870     return PROCESS_Current()->locale;
 871 }
 872
 873
 874 /***********************************************************************
 875  *           SetPriorityClass   (KERNEL32.503)
 876  */
 877 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
 878 {
 879     struct set_process_info_request *req = get_req_buffer();
 880     req->handle   = hprocess;
 881     req->priority = priorityclass;
 882     req->mask     = SET_PROCESS_INFO_PRIORITY;
 883     return !server_call( REQ_SET_PROCESS_INFO );
 884 }
 885
 886
 887 /***********************************************************************
 888  *           GetPriorityClass   (KERNEL32.250)
 889  */
 890 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
 891 {
 892     DWORD ret = 0;
 893     struct get_process_info_request *req = get_req_buffer();
 894     req->handle = hprocess;
 895     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
 896     return ret;
 897 }
 898
 899
 900 /***********************************************************************
 901  *          SetProcessAffinityMask   (KERNEL32.662)
 902  */
 903 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
 904 {
 905     struct set_process_info_request *req = get_req_buffer();
 906     req->handle   = hProcess;
 907     req->affinity = affmask;
 908     req->mask     = SET_PROCESS_INFO_AFFINITY;
 909     return !server_call( REQ_SET_PROCESS_INFO );
 910 }
 911
 912 /**********************************************************************
 913  *          GetProcessAffinityMask    (KERNEL32.373)
 914  */
 915 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
 916                                       LPDWORD lpProcessAffinityMask,
 917                                       LPDWORD lpSystemAffinityMask )
 918 {
 919     BOOL ret = FALSE;
 920     struct get_process_info_request *req = get_req_buffer();
 921     req->handle = hProcess;
 922     if (!server_call( REQ_GET_PROCESS_INFO ))
 923     {
 924         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
 925         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
 926         ret = TRUE;
 927     }
 928     return ret;
 929 }
 930
 931
 932 /***********************************************************************
 933  *           GetStdHandle    (KERNEL32.276)
 934  */
 935 HANDLE WINAPI GetStdHandle( DWORD std_handle )
 936 {
 937     PDB *pdb = PROCESS_Current();
 938
 939     switch(std_handle)
 940     {
 941     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
 942     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
 943     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
 944     }
 945     SetLastError( ERROR_INVALID_PARAMETER );
 946     return INVALID_HANDLE_VALUE;
 947 }
 948
 949
 950 /***********************************************************************
 951  *           SetStdHandle    (KERNEL32.506)
 952  */
 953 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
 954 {
 955     PDB *pdb = PROCESS_Current();
 956     /* FIXME: should we close the previous handle? */
 957     switch(std_handle)
 958     {
 959     case STD_INPUT_HANDLE:
 960         pdb->env_db->hStdin = handle;
 961         return TRUE;
 962     case STD_OUTPUT_HANDLE:
 963         pdb->env_db->hStdout = handle;
 964         return TRUE;
 965     case STD_ERROR_HANDLE:
 966         pdb->env_db->hStderr = handle;
 967         return TRUE;
 968     }
 969     SetLastError( ERROR_INVALID_PARAMETER );
 970     return FALSE;
 971 }
 972
 973 /***********************************************************************
 974  *           GetProcessVersion    (KERNEL32)
 975  */
 976 DWORD WINAPI GetProcessVersion( DWORD processid )
 977 {
 978     TDB *pTask;
 979     PDB *pdb = PROCESS_IdToPDB( processid );
 980
 981     if (!pdb) return 0;
 982     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
 983     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
 984 }
 985
 986 /***********************************************************************
 987  *           GetProcessFlags    (KERNEL32)
 988  */
 989 DWORD WINAPI GetProcessFlags( DWORD processid )
 990 {
 991     PDB *pdb = PROCESS_IdToPDB( processid );
 992     if (!pdb) return 0;
 993     return pdb->flags;
 994 }
 995
 996 /***********************************************************************
 997  *              SetProcessWorkingSetSize        [KERNEL32.662]
 998  * Sets the min/max working set sizes for a specified process.
 999  *
1000  * PARAMS
1001  *    hProcess [I] Handle to the process of interest
1002  *    minset   [I] Specifies minimum working set size
1003  *    maxset   [I] Specifies maximum working set size
1004  *
1005  * RETURNS  STD
1006  */
1007 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
1008                                        DWORD maxset)
1009 {
1010     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
1011     if(( minset == -1) && (maxset == -1)) {
1012         /* Trim the working set to zero */
1013         /* Swap the process out of physical RAM */
1014     }
1015     return TRUE;
1016 }
1017
1018 /***********************************************************************
1019  *           GetProcessWorkingSetSize    (KERNEL32)
1020  */
1021 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
1022                                        LPDWORD maxset)
1023 {
1024         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
1025         /* 32 MB working set size */
1026         if (minset) *minset = 32*1024*1024;
1027         if (maxset) *maxset = 32*1024*1024;
1028         return TRUE;
1029 }
1030
1031 /***********************************************************************
1032  *           SetProcessShutdownParameters    (KERNEL32)
1033  *
1034  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
1035  * Now tracks changes made (but does not act on these changes)
1036  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1037  * It really shouldn't be here, but I'll move it when it's been checked!
1038  */
1039 #define SHUTDOWN_NORETRY 1
1040 static unsigned int shutdown_noretry = 0;
1041 static unsigned int shutdown_priority = 0x280L;
1042 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1043 {
1044     if (flags & SHUTDOWN_NORETRY)
1045       shutdown_noretry = 1;
1046     else
1047       shutdown_noretry = 0;
1048     if (level > 0x100L && level < 0x3FFL)
1049       shutdown_priority = level;
1050     else
1051       {
1052         ERR("invalid priority level 0x%08lx\n", level);
1053         return FALSE;
1054       }
1055     return TRUE;
1056 }
1057
1058
1059 /***********************************************************************
1060  * GetProcessShutdownParameters                 (KERNEL32)
1061  *
1062  */
1063 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1064                                             LPDWORD lpdwFlags )
1065 {
1066   (*lpdwLevel) = shutdown_priority;
1067   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1068   return TRUE;
1069 }
1070 /***********************************************************************
1071  *           SetProcessPriorityBoost    (KERNEL32)
1072  */
1073 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1074 {
1075     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1076     /* Say we can do it. I doubt the program will notice that we don't. */
1077     return TRUE;
1078 }
1079
1080
1081 /***********************************************************************
1082  *           ReadProcessMemory                  (KERNEL32)
1083  */
1084 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1085                                LPDWORD bytes_read )
1086 {
1087     struct read_process_memory_request *req = get_req_buffer();
1088     unsigned int offset = (unsigned int)addr % sizeof(int);
1089     unsigned int max = server_remaining( req->data );  /* max length in one request */
1090     unsigned int pos;
1091
1092     if (bytes_read) *bytes_read = size;
1093
1094     /* first time, read total length to check for permissions */
1095     req->handle = process;
1096     req->addr   = (char *)addr - offset;
1097     req->len    = (size + offset + sizeof(int) - 1) / sizeof(int);
1098     if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1099
1100     if (size <= max - offset)
1101     {
1102         memcpy( buffer, (char *)req->data + offset, size );
1103         return TRUE;
1104     }
1105
1106     /* now take care of the remaining data */
1107     memcpy( buffer, (char *)req->data + offset, max - offset );
1108     pos = max - offset;
1109     size -= pos;
1110     while (size)
1111     {
1112         if (max > size) max = size;
1113         req->handle = process;
1114         req->addr   = (char *)addr + pos;
1115         req->len    = (max + sizeof(int) - 1) / sizeof(int);
1116         if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1117         memcpy( (char *)buffer + pos, (char *)req->data, max );
1118         size -= max;
1119         pos += max;
1120     }
1121     return TRUE;
1122
1123  error:
1124     if (bytes_read) *bytes_read = 0;
1125     return FALSE;
1126 }
1127
1128
1129 /***********************************************************************
1130  *           WriteProcessMemory                 (KERNEL32)
1131  */
1132 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1133                                 LPDWORD bytes_written )
1134 {
1135     unsigned int first_offset, last_offset;
1136     struct write_process_memory_request *req = get_req_buffer();
1137     unsigned int max = server_remaining( req->data );  /* max length in one request */
1138     unsigned int pos, last_mask;
1139
1140     if (!size)
1141     {
1142         SetLastError( ERROR_INVALID_PARAMETER );
1143         return FALSE;
1144     }
1145     if (bytes_written) *bytes_written = size;
1146
1147     /* compute the mask for the first int */
1148     req->first_mask = ~0;
1149     first_offset = (unsigned int)addr % sizeof(int);
1150     memset( &req->first_mask, 0, first_offset );
1151
1152     /* compute the mask for the last int */
1153     last_offset = (size + first_offset) % sizeof(int);
1154     last_mask = 0;
1155     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1156
1157     req->handle = process;
1158     req->addr = (char *)addr - first_offset;
1159     /* for the first request, use the total length */
1160     req->len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1161
1162     if (size + first_offset < max)  /* we can do it in one round */
1163     {
1164         memcpy( (char *)req->data + first_offset, buffer, size );
1165         req->last_mask = last_mask;
1166         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1167         return TRUE;
1168     }
1169
1170     /* needs multiple server calls */
1171
1172     memcpy( (char *)req->data + first_offset, buffer, max - first_offset );
1173     req->last_mask = ~0;
1174     if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1175     pos = max - first_offset;
1176     size -= pos;
1177     while (size)
1178     {
1179         if (size <= max)  /* last one */
1180         {
1181             req->last_mask = last_mask;
1182             max = size;
1183         }
1184         req->handle = process;
1185         req->addr = (char *)addr + pos;
1186         req->len = (max + sizeof(int) - 1) / sizeof(int);
1187         req->first_mask = ~0;
1188         memcpy( req->data, buffer + pos, max );
1189         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1190         pos += max;
1191         size -= max;
1192     }
1193     return TRUE;
1194
1195  error:
1196     if (bytes_written) *bytes_written = 0;
1197     return FALSE;
1198
1199 }
1200
1201
1202 /***********************************************************************
1203  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1204  *
1205  * A service process calls this function to ensure that it continues to run
1206  * even after a user logged off.
1207  */
1208 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1209 {
1210         /* I don't think that Wine needs to do anything in that function */
1211         return 1; /* success */
1212 }
1213
1214 /***********************************************************************
1215  * GetExitCodeProcess [KERNEL32.325]
1216  *
1217  * Gets termination status of specified process
1218  *
1219  * RETURNS
1220  *   Success: TRUE
1221  *   Failure: FALSE
1222  */
1223 BOOL WINAPI GetExitCodeProcess(
1224     HANDLE hProcess,  /* [I] handle to the process */
1225     LPDWORD lpExitCode) /* [O] address to receive termination status */
1226 {
1227     BOOL ret = FALSE;
1228     struct get_process_info_request *req = get_req_buffer();
1229     req->handle = hProcess;
1230     if (!server_call( REQ_GET_PROCESS_INFO ))
1231     {
1232         if (lpExitCode) *lpExitCode = req->exit_code;
1233         ret = TRUE;
1234     }
1235     return ret;
1236 }
1237
1238
1239 /***********************************************************************
1240  * GetProcessHeaps [KERNEL32.376]
1241  */
1242 DWORD WINAPI GetProcessHeaps(DWORD nrofheaps,HANDLE *heaps) {
1243         FIXME_(win32)("(%ld,%p), incomplete implementation.\n",nrofheaps,heaps);
1244
1245         if (nrofheaps) {
1246                 heaps[0] = GetProcessHeap();
1247                 /* ... probably SystemHeap too ? */
1248                 return 1;
1249         }
1250         /* number of available heaps */
1251         return 1;
1252 }
1253
1254
1255 /***********************************************************************
1256  *           SetErrorMode   (KERNEL32.486)
1257  */
1258 UINT WINAPI SetErrorMode( UINT mode )
1259 {
1260     UINT old = PROCESS_Current()->error_mode;
1261     PROCESS_Current()->error_mode = mode;
1262     return old;
1263 }