scheduler/process.c

   1 /*
   2  * Win32 processes
   3  *
   4  * Copyright 1996, 1998 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <fcntl.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <unistd.h>
  12 #include "wine/winbase16.h"
  13 #include "wine/exception.h"
  14 #include "process.h"
  15 #include "module.h"
  16 #include "neexe.h"
  17 #include "file.h"
  18 #include "global.h"
  19 #include "heap.h"
  20 #include "task.h"
  21 #include "ldt.h"
  22 #include "syslevel.h"
  23 #include "thread.h"
  24 #include "winerror.h"
  25 #include "pe_image.h"
  26 #include "server.h"
  27 #include "options.h"
  28 #include "callback.h"
  29 #include "debugtools.h"
  30
  31 DEFAULT_DEBUG_CHANNEL(process)
  32 DECLARE_DEBUG_CHANNEL(relay)
  33 DECLARE_DEBUG_CHANNEL(win32)
  34
  35
  36 /* The initial process PDB */
  37 static PDB initial_pdb;
  38
  39 static PDB *PROCESS_First = &initial_pdb;
  40
  41
  42 /***********************************************************************
  43  *           PROCESS_WalkProcess
  44  */
  45 void PROCESS_WalkProcess(void)
  46 {
  47     PDB  *pdb;
  48     char *name;
  49
  50     pdb = PROCESS_First;
  51     MESSAGE( " pid        PDB         #th  modref     module \n" );
  52     while(pdb)
  53     {
  54         if (pdb == &initial_pdb)
  55             name = "initial PDB";
  56         else
  57             name = (pdb->exe_modref) ? pdb->exe_modref->filename : "";
  58
  59         MESSAGE( " %8p %8p %5d  %8p %s\n", pdb->server_pid, pdb,
  60                pdb->threads, pdb->exe_modref, name);
  61         pdb = pdb->next;
  62     }
  63     return;
  64 }
  65
  66
  67 /***********************************************************************
  68  *           PROCESS_IdToPDB
  69  *
  70  * Convert a process id to a PDB, making sure it is valid.
  71  */
  72 PDB *PROCESS_IdToPDB( DWORD pid )
  73 {
  74     PDB *pdb;
  75
  76     if (!pid) return PROCESS_Current();
  77     pdb = PROCESS_First;
  78     while (pdb)
  79     {
  80         if ((DWORD)pdb->server_pid == pid) return pdb;
  81         pdb = pdb->next;
  82     }
  83     SetLastError( ERROR_INVALID_PARAMETER );
  84     return NULL;
  85 }
  86
  87
  88 /***********************************************************************
  89  *           PROCESS_CallUserSignalProc
  90  *
  91  * FIXME:  Some of the signals aren't sent correctly!
  92  *
  93  * The exact meaning of the USER signals is undocumented, but this
  94  * should cover the basic idea:
  95  *
  96  * USIG_DLL_UNLOAD_WIN16
  97  *     This is sent when a 16-bit module is unloaded.
  98  *
  99  * USIG_DLL_UNLOAD_WIN32
 100  *     This is sent when a 32-bit module is unloaded.
 101  *
 102  * USIG_DLL_UNLOAD_ORPHANS
 103  *     This is sent after the last Win3.1 module is unloaded,
 104  *     to allow removal of orphaned menus.
 105  *
 106  * USIG_FAULT_DIALOG_PUSH
 107  * USIG_FAULT_DIALOG_POP
 108  *     These are called to allow USER to prepare for displaying a
 109  *     fault dialog, even though the fault might have happened while
 110  *     inside a USER critical section.
 111  *
 112  * USIG_THREAD_INIT
 113  *     This is called from the context of a new thread, as soon as it
 114  *     has started to run.
 115  *
 116  * USIG_THREAD_EXIT
 117  *     This is called, still in its context, just before a thread is
 118  *     about to terminate.
 119  *
 120  * USIG_PROCESS_CREATE
 121  *     This is called, in the parent process context, after a new process
 122  *     has been created.
 123  *
 124  * USIG_PROCESS_INIT
 125  *     This is called in the new process context, just after the main thread
 126  *     has started execution (after the main thread's USIG_THREAD_INIT has
 127  *     been sent).
 128  *
 129  * USIG_PROCESS_LOADED
 130  *     This is called after the executable file has been loaded into the
 131  *     new process context.
 132  *
 133  * USIG_PROCESS_RUNNING
 134  *     This is called immediately before the main entry point is called.
 135  *
 136  * USIG_PROCESS_EXIT
 137  *     This is called in the context of a process that is about to
 138  *     terminate (but before the last thread's USIG_THREAD_EXIT has
 139  *     been sent).
 140  *
 141  * USIG_PROCESS_DESTROY
 142  *     This is called after a process has terminated.
 143  *
 144  *
 145  * The meaning of the dwFlags bits is as follows:
 146  *
 147  * USIG_FLAGS_WIN32
 148  *     Current process is 32-bit.
 149  *
 150  * USIG_FLAGS_GUI
 151  *     Current process is a (Win32) GUI process.
 152  *
 153  * USIG_FLAGS_FEEDBACK
 154  *     Current process needs 'feedback' (determined from the STARTUPINFO
 155  *     flags STARTF_FORCEONFEEDBACK / STARTF_FORCEOFFFEEDBACK).
 156  *
 157  * USIG_FLAGS_FAULT
 158  *     The signal is being sent due to a fault.
 159  */
 160 void PROCESS_CallUserSignalProc( UINT uCode, HMODULE hModule )
 161 {
 162     DWORD flags = PROCESS_Current()->flags;
 163     DWORD startup_flags = PROCESS_Current()->env_db->startup_info->dwFlags;
 164     DWORD dwFlags = 0;
 165
 166     /* Determine dwFlags */
 167
 168     if ( !(flags & PDB32_WIN16_PROC) ) dwFlags |= USIG_FLAGS_WIN32;
 169
 170     if ( !(flags & PDB32_CONSOLE_PROC) ) dwFlags |= USIG_FLAGS_GUI;
 171
 172     if ( dwFlags & USIG_FLAGS_GUI )
 173     {
 174         /* Feedback defaults to ON */
 175         if ( !(startup_flags & STARTF_FORCEOFFFEEDBACK) )
 176             dwFlags |= USIG_FLAGS_FEEDBACK;
 177     }
 178     else
 179     {
 180         /* Feedback defaults to OFF */
 181         if (startup_flags & STARTF_FORCEONFEEDBACK)
 182             dwFlags |= USIG_FLAGS_FEEDBACK;
 183     }
 184
 185     /* Convert module handle to 16-bit */
 186
 187     if ( HIWORD( hModule ) )
 188         hModule = MapHModuleLS( hModule );
 189
 190     /* Call USER signal proc */
 191
 192     if ( Callout.UserSignalProc )
 193     {
 194         if ( uCode == USIG_THREAD_INIT || uCode == USIG_THREAD_EXIT )
 195             Callout.UserSignalProc( uCode, GetCurrentThreadId(), dwFlags, hModule );
 196         else
 197             Callout.UserSignalProc( uCode, GetCurrentProcessId(), dwFlags, hModule );
 198     }
 199 }
 200
 201 /***********************************************************************
 202  *           PROCESS_CreateEnvDB
 203  *
 204  * Create the env DB for a newly started process.
 205  */
 206 static BOOL PROCESS_CreateEnvDB(void)
 207 {
 208     struct init_process_request *req = get_req_buffer();
 209     STARTUPINFOA *startup;
 210     ENVDB *env_db;
 211     char cmd_line[4096];
 212     PDB *pdb = PROCESS_Current();
 213
 214     /* Allocate the env DB */
 215
 216     if (!(env_db = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ENVDB) )))
 217         return FALSE;
 218     pdb->env_db = env_db;
 219     InitializeCriticalSection( &env_db->section );
 220
 221     /* Allocate and fill the startup info */
 222     if (!(startup = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(STARTUPINFOA) )))
 223         return FALSE;
 224     env_db->startup_info = startup;
 225
 226     /* Retrieve startup info from the server */
 227
 228     req->ldt_copy  = ldt_copy;
 229     req->ldt_flags = ldt_flags_copy;
 230     if (server_call( REQ_INIT_PROCESS )) return FALSE;
 231     pdb->exe_file        = req->exe_file;
 232     startup->dwFlags     = req->start_flags;
 233     startup->wShowWindow = req->cmd_show;
 234     env_db->hStdin  = startup->hStdInput  = req->hstdin;
 235     env_db->hStdout = startup->hStdOutput = req->hstdout;
 236     env_db->hStderr = startup->hStdError  = req->hstderr;
 237     lstrcpynA( cmd_line, req->cmdline, sizeof(cmd_line) );
 238
 239     /* Copy the parent environment */
 240
 241     if (!ENV_InheritEnvironment( req->env_ptr )) return FALSE;
 242
 243     /* Copy the command line */
 244
 245     if (!(pdb->env_db->cmd_line = HEAP_strdupA( GetProcessHeap(), 0, cmd_line )))
 246         return FALSE;
 247
 248     return TRUE;
 249 }
 250
 251
 252 /***********************************************************************
 253  *           PROCESS_FreePDB
 254  *
 255  * Free a PDB and all associated storage.
 256  */
 257 void PROCESS_FreePDB( PDB *pdb )
 258 {
 259     PDB **pptr = &PROCESS_First;
 260
 261     ENV_FreeEnvironment( pdb );
 262     while (*pptr && (*pptr != pdb)) pptr = &(*pptr)->next;
 263     if (*pptr) *pptr = pdb->next;
 264     HeapFree( GetProcessHeap(), 0, pdb );
 265 }
 266
 267
 268 /***********************************************************************
 269  *           PROCESS_CreatePDB
 270  *
 271  * Allocate and fill a PDB structure.
 272  * Runs in the context of the parent process.
 273  */
 274 static PDB *PROCESS_CreatePDB( PDB *parent, BOOL inherit )
 275 {
 276     PDB *pdb = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(PDB) );
 277
 278     if (!pdb) return NULL;
 279     pdb->exit_code       = STILL_ACTIVE;
 280     pdb->threads         = 1;
 281     pdb->running_threads = 1;
 282     pdb->ring0_threads   = 1;
 283     pdb->parent          = parent;
 284     pdb->group           = pdb;
 285     pdb->priority        = 8;  /* Normal */
 286     pdb->next            = PROCESS_First;
 287     pdb->winver          = 0xffff; /* to be determined */
 288     pdb->main_queue      = INVALID_HANDLE_VALUE16;
 289     PROCESS_First = pdb;
 290     return pdb;
 291 }
 292
 293
 294 /***********************************************************************
 295  *           PROCESS_Init
 296  */
 297 BOOL PROCESS_Init( BOOL win32 )
 298 {
 299     TEB *teb;
 300     int server_fd;
 301
 302     /* Start the server */
 303     server_fd = CLIENT_InitServer();
 304
 305     /* Fill the initial process structure */
 306     initial_pdb.exit_code       = STILL_ACTIVE;
 307     initial_pdb.threads         = 1;
 308     initial_pdb.running_threads = 1;
 309     initial_pdb.ring0_threads   = 1;
 310     initial_pdb.group           = &initial_pdb;
 311     initial_pdb.priority        = 8;  /* Normal */
 312     initial_pdb.flags           = win32? 0 : PDB32_WIN16_PROC;
 313     initial_pdb.winver          = 0xffff; /* to be determined */
 314     initial_pdb.main_queue      = INVALID_HANDLE_VALUE16;
 315
 316     /* Initialize virtual memory management */
 317     if (!VIRTUAL_Init()) return FALSE;
 318
 319     /* Create the initial thread structure and socket pair */
 320     if (!(teb = THREAD_CreateInitialThread( &initial_pdb, server_fd ))) return FALSE;
 321
 322     /* Remember TEB selector of initial process for emergency use */
 323     SYSLEVEL_EmergencyTeb = teb->teb_sel;
 324
 325     /* Create the system and process heaps */
 326     if (!HEAP_CreateSystemHeap()) return FALSE;
 327     initial_pdb.heap = HeapCreate( HEAP_GROWABLE, 0, 0 );
 328
 329     /* Create the idle event for the initial process
 330        FIXME 1: Shouldn't we call UserSignalProc for the initial process too?
 331        FIXME 2: It seems to me that the initial pdb becomes never freed, so I don't now
 332                 where to release the idle event for the initial process.
 333     */
 334     initial_pdb.idle_event = CreateEventA ( NULL, TRUE, FALSE, NULL );
 335     initial_pdb.idle_event = ConvertToGlobalHandle ( initial_pdb.idle_event );
 336
 337     /* Initialize signal handling */
 338     if (!SIGNAL_Init()) return FALSE;
 339
 340     /* Create the environment DB of the first process */
 341     if (!PROCESS_CreateEnvDB()) return FALSE;
 342
 343     /* Create the SEGPTR heap */
 344     if (!(SegptrHeap = HeapCreate( HEAP_WINE_SEGPTR, 0, 0 ))) return FALSE;
 345
 346     /* Initialize the first process critical section */
 347     InitializeCriticalSection( &initial_pdb.crit_section );
 348
 349     return TRUE;
 350 }
 351
 352
 353 /***********************************************************************
 354  *           PROCESS_Start
 355  *
 356  * Startup routine of a new process. Called in the context of the new process.
 357  */
 358 void PROCESS_Start(void)
 359 {
 360     struct init_process_done_request *req = get_req_buffer();
 361     int debugged;
 362     UINT cmdShow = SW_SHOWNORMAL;
 363     LPTHREAD_START_ROUTINE entry = NULL;
 364     PDB *pdb = PROCESS_Current();
 365     NE_MODULE *pModule = NE_GetPtr( pdb->module );
 366     LPCSTR filename = ((OFSTRUCT *)((char*)(pModule) + (pModule)->fileinfo))->szPathName;
 367     IMAGE_OPTIONAL_HEADER *header = !pModule->module32? NULL :
 368                                     &PE_HEADER(pModule->module32)->OptionalHeader;
 369
 370     /* Get process type */
 371     enum { PROC_DOS, PROC_WIN16, PROC_WIN32 } type;
 372     if ( pdb->flags & PDB32_DOS_PROC )
 373         type = PROC_DOS;
 374     else if ( pdb->flags & PDB32_WIN16_PROC )
 375         type = PROC_WIN16;
 376     else
 377         type = PROC_WIN32;
 378
 379     /* Initialize the critical section */
 380     InitializeCriticalSection( &pdb->crit_section );
 381
 382     /* Create the heap */
 383     if (!(pdb->heap = GetProcessHeap()))
 384     {
 385         if (!(pdb->heap = HeapCreate( HEAP_GROWABLE,
 386                                       header? header->SizeOfHeapReserve : 0x10000,
 387                                       header? header->SizeOfHeapCommit  : 0 )))
 388             goto error;
 389     }
 390
 391     /* Create the environment db */
 392     if (!PROCESS_CreateEnvDB()) goto error;
 393
 394     /* Create a task for this process */
 395     if (pdb->env_db->startup_info->dwFlags & STARTF_USESHOWWINDOW)
 396         cmdShow = pdb->env_db->startup_info->wShowWindow;
 397     if (!TASK_Create( pModule, cmdShow ))
 398         goto error;
 399
 400     /* Load all process modules */
 401     switch ( type )
 402     {
 403     case PROC_WIN16:
 404         if ( !NE_InitProcess( pModule ) )
 405             goto error;
 406         break;
 407
 408     case PROC_WIN32:
 409         /* Create 32-bit MODREF */
 410         if ( !PE_CreateModule( pModule->module32, filename, 0, FALSE ) )
 411             goto error;
 412
 413         /* Increment EXE refcount */
 414         assert( pdb->exe_modref );
 415         pdb->exe_modref->refCount++;
 416
 417         /* Retrieve entry point address */
 418         entry = (LPTHREAD_START_ROUTINE)RVA_PTR(pModule->module32,
 419                                                 OptionalHeader.AddressOfEntryPoint);
 420         break;
 421
 422     case PROC_DOS:
 423         /* FIXME: move DOS startup code here */
 424         break;
 425     }
 426
 427
 428     /* Note: The USIG_PROCESS_CREATE signal is supposed to be sent in the
 429      *       context of the parent process.  Actually, the USER signal proc
 430      *       doesn't really care about that, but it *does* require that the
 431      *       startup parameters are correctly set up, so that GetProcessDword
 432      *       works.  Furthermore, before calling the USER signal proc the
 433      *       16-bit stack must be set up, which it is only after TASK_Create
 434      *       in the case of a 16-bit process. Thus, we send the signal here.
 435      */
 436
 437     PROCESS_CallUserSignalProc( USIG_PROCESS_CREATE, 0 );
 438     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 439     PROCESS_CallUserSignalProc( USIG_PROCESS_INIT, 0 );
 440     PROCESS_CallUserSignalProc( USIG_PROCESS_LOADED, 0 );
 441
 442     /* Signal the parent process to continue */
 443     req->module = (void *)pModule->module32;
 444     req->entry  = entry;
 445     server_call( REQ_INIT_PROCESS_DONE );
 446     debugged = req->debugged;
 447
 448     if ( (pdb->flags & PDB32_CONSOLE_PROC) || (pdb->flags & PDB32_DOS_PROC) )
 449         AllocConsole();
 450
 451     /* Perform Win32 specific process initialization */
 452     if ( type == PROC_WIN32 )
 453     {
 454         EnterCriticalSection( &pdb->crit_section );
 455
 456         PE_InitTls();
 457         MODULE_DllProcessAttach( pdb->exe_modref, (LPVOID)1 );
 458
 459         LeaveCriticalSection( &pdb->crit_section );
 460     }
 461
 462     /* Call UserSignalProc ( USIG_PROCESS_RUNNING ... ) only for non-GUI win32 apps */
 463     if ( type != PROC_WIN16 && (pdb->flags & PDB32_CONSOLE_PROC))
 464         PROCESS_CallUserSignalProc( USIG_PROCESS_RUNNING, 0 );
 465
 466     switch ( type )
 467     {
 468     case PROC_DOS:
 469         TRACE_(relay)( "Starting DOS process\n" );
 470         DOSVM_Enter( NULL );
 471         ERR_(relay)( "DOSVM_Enter returned; should not happen!\n" );
 472         ExitProcess( 0 );
 473
 474     case PROC_WIN16:
 475         TRACE_(relay)( "Starting Win16 process\n" );
 476         TASK_CallToStart();
 477         ERR_(relay)( "TASK_CallToStart returned; should not happen!\n" );
 478         ExitProcess( 0 );
 479
 480     case PROC_WIN32:
 481         TRACE_(relay)( "Starting Win32 process (entryproc=%p)\n", entry );
 482         if (debugged) DbgBreakPoint();
 483         /* FIXME: should use _PEB as parameter for NT 3.5 programs !
 484          * Dunno about other OSs */
 485         ExitProcess( entry(NULL) );
 486     }
 487
 488  error:
 489     ExitProcess( GetLastError() );
 490 }
 491
 492
 493 /***********************************************************************
 494  *           PROCESS_Create
 495  *
 496  * Create a new process database and associated info.
 497  */
 498 PDB *PROCESS_Create( NE_MODULE *pModule, HFILE hFile, LPCSTR cmd_line, LPCSTR env,
 499                      LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa,
 500                      BOOL inherit, DWORD flags, STARTUPINFOA *startup,
 501                      PROCESS_INFORMATION *info )
 502 {
 503     HANDLE handles[2], load_done_evt = 0;
 504     DWORD exitcode, size;
 505     BOOL alloc_stack16;
 506     int fd = -1;
 507     struct new_process_request *req = get_req_buffer();
 508     TEB *teb = NULL;
 509     PDB *parent = PROCESS_Current();
 510     PDB *pdb = PROCESS_CreatePDB( parent, inherit );
 511
 512     if (!pdb) return NULL;
 513     info->hThread = info->hProcess = INVALID_HANDLE_VALUE;
 514     if (!(load_done_evt = CreateEventA( NULL, TRUE, FALSE, NULL ))) goto error;
 515
 516     /* Create the process on the server side */
 517
 518     req->pinherit     = (psa && (psa->nLength >= sizeof(*psa)) && psa->bInheritHandle);
 519     req->tinherit     = (tsa && (tsa->nLength >= sizeof(*tsa)) && tsa->bInheritHandle);
 520     req->inherit_all  = inherit;
 521     req->create_flags = flags;
 522     req->start_flags  = startup->dwFlags;
 523     req->exe_file     = hFile;
 524     req->event        = load_done_evt;
 525     if (startup->dwFlags & STARTF_USESTDHANDLES)
 526     {
 527         req->hstdin  = startup->hStdInput;
 528         req->hstdout = startup->hStdOutput;
 529         req->hstderr = startup->hStdError;
 530     }
 531     else
 532     {
 533         req->hstdin  = GetStdHandle( STD_INPUT_HANDLE );
 534         req->hstdout = GetStdHandle( STD_OUTPUT_HANDLE );
 535         req->hstderr = GetStdHandle( STD_ERROR_HANDLE );
 536     }
 537     req->cmd_show = startup->wShowWindow;
 538     req->env_ptr = (void*)env;  /* FIXME: hack */
 539     lstrcpynA( req->cmdline, cmd_line, server_remaining(req->cmdline) );
 540     if (server_call_fd( REQ_NEW_PROCESS, -1, &fd )) goto error;
 541     pdb->server_pid   = req->pid;
 542     info->hProcess    = req->phandle;
 543     info->dwProcessId = (DWORD)req->pid;
 544     info->hThread     = req->thandle;
 545     info->dwThreadId  = (DWORD)req->tid;
 546
 547     if (pModule->module32)   /* Win32 process */
 548     {
 549         IMAGE_OPTIONAL_HEADER *header = &PE_HEADER(pModule->module32)->OptionalHeader;
 550         size = header->SizeOfStackReserve;
 551         if (header->Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
 552             pdb->flags |= PDB32_CONSOLE_PROC;
 553         alloc_stack16 = TRUE;
 554     }
 555     else if (!pModule->dos_image) /* Win16 process */
 556     {
 557         alloc_stack16 = FALSE;
 558         size = 0;
 559         pdb->flags |= PDB32_WIN16_PROC;
 560     }
 561     else  /* DOS process */
 562     {
 563         alloc_stack16 = FALSE;
 564         size = 0;
 565         pdb->flags |= PDB32_DOS_PROC;
 566     }
 567
 568     /* Create the main thread */
 569
 570     if (!(teb = THREAD_Create( pdb, req->tid, fd, flags & CREATE_SUSPENDED,
 571                                size, alloc_stack16 ))) goto error;
 572     teb->tid = (void *)info->dwThreadId;
 573     teb->startup = PROCESS_Start;
 574     fd = -1;  /* don't close it */
 575
 576     /* Pass module to new process (FIXME: hack) */
 577     pdb->module = pModule->self;
 578     SYSDEPS_SpawnThread( teb );
 579
 580     /* Wait until process is initialized (or initialization failed) */
 581     handles[0] = info->hProcess;
 582     handles[1] = load_done_evt;
 583
 584     switch ( WaitForMultipleObjects( 2, handles, FALSE, INFINITE ) )
 585     {
 586     default:
 587         ERR( "WaitForMultipleObjects failed\n" );
 588         break;
 589
 590     case 0:
 591         /* Child initialization code returns error condition as exitcode */
 592         if ( GetExitCodeProcess( info->hProcess, &exitcode ) )
 593             SetLastError( exitcode );
 594         goto error;
 595
 596     case 1:
 597         /* Get 16-bit task up and running */
 598         if ( pdb->flags & PDB32_WIN16_PROC )
 599         {
 600             /* Post event to start the task */
 601             PostEvent16( pdb->task );
 602
 603             /* If we ourselves are a 16-bit task, we Yield() directly. */
 604             if ( parent->flags & PDB32_WIN16_PROC )
 605                 OldYield16();
 606         }
 607         break;
 608     }
 609
 610     CloseHandle( load_done_evt );
 611     load_done_evt = 0;
 612
 613     return pdb;
 614
 615 error:
 616     if (load_done_evt) CloseHandle( load_done_evt );
 617     if (info->hThread != INVALID_HANDLE_VALUE) CloseHandle( info->hThread );
 618     if (info->hProcess != INVALID_HANDLE_VALUE) CloseHandle( info->hProcess );
 619     PROCESS_FreePDB( pdb );
 620     if (fd != -1) close( fd );
 621     return NULL;
 622 }
 623
 624
 625 /***********************************************************************
 626  *           ExitProcess   (KERNEL32.100)
 627  */
 628 void WINAPI ExitProcess( DWORD status )
 629 {
 630     struct terminate_process_request *req = get_req_buffer();
 631
 632     MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 633     TASK_KillTask( 0 );
 634
 635     /* send the exit code to the server */
 636     req->handle    = GetCurrentProcess();
 637     req->exit_code = status;
 638     server_call( REQ_TERMINATE_PROCESS );
 639     exit( status );
 640 }
 641
 642 /***********************************************************************
 643  *           ExitProcess16   (KERNEL.466)
 644  */
 645 void WINAPI ExitProcess16( WORD status )
 646 {
 647     SYSLEVEL_ReleaseWin16Lock();
 648     ExitProcess( status );
 649 }
 650
 651 /******************************************************************************
 652  *           TerminateProcess   (KERNEL32.684)
 653  */
 654 BOOL WINAPI TerminateProcess( HANDLE handle, DWORD exit_code )
 655 {
 656     BOOL ret;
 657     struct terminate_process_request *req = get_req_buffer();
 658     req->handle    = handle;
 659     req->exit_code = exit_code;
 660     if ((ret = !server_call( REQ_TERMINATE_PROCESS )) && req->self) exit( exit_code );
 661     return ret;
 662 }
 663
 664
 665 /***********************************************************************
 666  *           GetProcessDword    (KERNEL32.18) (KERNEL.485)
 667  * 'Of course you cannot directly access Windows internal structures'
 668  */
 669 DWORD WINAPI GetProcessDword( DWORD dwProcessID, INT offset )
 670 {
 671     PDB *process = PROCESS_IdToPDB( dwProcessID );
 672     TDB *pTask;
 673     DWORD x, y;
 674
 675     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 676     if ( !process ) return 0;
 677
 678     switch ( offset )
 679     {
 680     case GPD_APP_COMPAT_FLAGS:
 681         pTask = (TDB *)GlobalLock16( process->task );
 682         return pTask? pTask->compat_flags : 0;
 683
 684     case GPD_LOAD_DONE_EVENT:
 685         return process->load_done_evt;
 686
 687     case GPD_HINSTANCE16:
 688         pTask = (TDB *)GlobalLock16( process->task );
 689         return pTask? pTask->hInstance : 0;
 690
 691     case GPD_WINDOWS_VERSION:
 692         pTask = (TDB *)GlobalLock16( process->task );
 693         return pTask? pTask->version : 0;
 694
 695     case GPD_THDB:
 696         if ( process != PROCESS_Current() ) return 0;
 697         return (DWORD)NtCurrentTeb() - 0x10 /* FIXME */;
 698
 699     case GPD_PDB:
 700         return (DWORD)process;
 701
 702     case GPD_STARTF_SHELLDATA: /* return stdoutput handle from startupinfo ??? */
 703         return process->env_db->startup_info->hStdOutput;
 704
 705     case GPD_STARTF_HOTKEY: /* return stdinput handle from startupinfo ??? */
 706         return process->env_db->startup_info->hStdInput;
 707
 708     case GPD_STARTF_SHOWWINDOW:
 709         return process->env_db->startup_info->wShowWindow;
 710
 711     case GPD_STARTF_SIZE:
 712         x = process->env_db->startup_info->dwXSize;
 713         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 714         y = process->env_db->startup_info->dwYSize;
 715         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 716         return MAKELONG( x, y );
 717
 718     case GPD_STARTF_POSITION:
 719         x = process->env_db->startup_info->dwX;
 720         if ( x == CW_USEDEFAULT ) x = CW_USEDEFAULT16;
 721         y = process->env_db->startup_info->dwY;
 722         if ( y == CW_USEDEFAULT ) y = CW_USEDEFAULT16;
 723         return MAKELONG( x, y );
 724
 725     case GPD_STARTF_FLAGS:
 726         return process->env_db->startup_info->dwFlags;
 727
 728     case GPD_PARENT:
 729         return process->parent? (DWORD)process->parent->server_pid : 0;
 730
 731     case GPD_FLAGS:
 732         return process->flags;
 733
 734     case GPD_USERDATA:
 735         return process->process_dword;
 736
 737     default:
 738         ERR_(win32)("Unknown offset %d\n", offset );
 739         return 0;
 740     }
 741 }
 742
 743 /***********************************************************************
 744  *           SetProcessDword    (KERNEL.484)
 745  * 'Of course you cannot directly access Windows internal structures'
 746  */
 747 void WINAPI SetProcessDword( DWORD dwProcessID, INT offset, DWORD value )
 748 {
 749     PDB *process = PROCESS_IdToPDB( dwProcessID );
 750
 751     TRACE_(win32)("(%ld, %d)\n", dwProcessID, offset );
 752     if ( !process ) return;
 753
 754     switch ( offset )
 755     {
 756     case GPD_APP_COMPAT_FLAGS:
 757     case GPD_LOAD_DONE_EVENT:
 758     case GPD_HINSTANCE16:
 759     case GPD_WINDOWS_VERSION:
 760     case GPD_THDB:
 761     case GPD_PDB:
 762     case GPD_STARTF_SHELLDATA:
 763     case GPD_STARTF_HOTKEY:
 764     case GPD_STARTF_SHOWWINDOW:
 765     case GPD_STARTF_SIZE:
 766     case GPD_STARTF_POSITION:
 767     case GPD_STARTF_FLAGS:
 768     case GPD_PARENT:
 769     case GPD_FLAGS:
 770         ERR_(win32)("Not allowed to modify offset %d\n", offset );
 771         break;
 772
 773     case GPD_USERDATA:
 774         process->process_dword = value;
 775         break;
 776
 777     default:
 778         ERR_(win32)("Unknown offset %d\n", offset );
 779         break;
 780     }
 781 }
 782
 783
 784 /***********************************************************************
 785  *           GetCurrentProcess   (KERNEL32.198)
 786  */
 787 HANDLE WINAPI GetCurrentProcess(void)
 788 {
 789     return CURRENT_PROCESS_PSEUDOHANDLE;
 790 }
 791
 792
 793 /*********************************************************************
 794  *           OpenProcess   (KERNEL32.543)
 795  */
 796 HANDLE WINAPI OpenProcess( DWORD access, BOOL inherit, DWORD id )
 797 {
 798     HANDLE ret = 0;
 799     struct open_process_request *req = get_req_buffer();
 800
 801     req->pid     = (void *)id;
 802     req->access  = access;
 803     req->inherit = inherit;
 804     if (!server_call( REQ_OPEN_PROCESS )) ret = req->handle;
 805     return ret;
 806 }
 807
 808 /*********************************************************************
 809  *           MapProcessHandle   (KERNEL.483)
 810  */
 811 DWORD WINAPI MapProcessHandle( HANDLE handle )
 812 {
 813     DWORD ret = 0;
 814     struct get_process_info_request *req = get_req_buffer();
 815     req->handle = handle;
 816     if (!server_call( REQ_GET_PROCESS_INFO )) ret = (DWORD)req->pid;
 817     return ret;
 818 }
 819
 820 /***********************************************************************
 821  *           GetCurrentProcessId   (KERNEL32.199)
 822  */
 823 DWORD WINAPI GetCurrentProcessId(void)
 824 {
 825     return (DWORD)PROCESS_Current()->server_pid;
 826 }
 827
 828
 829 /***********************************************************************
 830  *           GetThreadLocale    (KERNEL32.295)
 831  */
 832 LCID WINAPI GetThreadLocale(void)
 833 {
 834     return PROCESS_Current()->locale;
 835 }
 836
 837
 838 /***********************************************************************
 839  *           SetPriorityClass   (KERNEL32.503)
 840  */
 841 BOOL WINAPI SetPriorityClass( HANDLE hprocess, DWORD priorityclass )
 842 {
 843     struct set_process_info_request *req = get_req_buffer();
 844     req->handle   = hprocess;
 845     req->priority = priorityclass;
 846     req->mask     = SET_PROCESS_INFO_PRIORITY;
 847     return !server_call( REQ_SET_PROCESS_INFO );
 848 }
 849
 850
 851 /***********************************************************************
 852  *           GetPriorityClass   (KERNEL32.250)
 853  */
 854 DWORD WINAPI GetPriorityClass(HANDLE hprocess)
 855 {
 856     DWORD ret = 0;
 857     struct get_process_info_request *req = get_req_buffer();
 858     req->handle = hprocess;
 859     if (!server_call( REQ_GET_PROCESS_INFO )) ret = req->priority;
 860     return ret;
 861 }
 862
 863
 864 /***********************************************************************
 865  *          SetProcessAffinityMask   (KERNEL32.662)
 866  */
 867 BOOL WINAPI SetProcessAffinityMask( HANDLE hProcess, DWORD affmask )
 868 {
 869     struct set_process_info_request *req = get_req_buffer();
 870     req->handle   = hProcess;
 871     req->affinity = affmask;
 872     req->mask     = SET_PROCESS_INFO_AFFINITY;
 873     return !server_call( REQ_SET_PROCESS_INFO );
 874 }
 875
 876 /**********************************************************************
 877  *          GetProcessAffinityMask    (KERNEL32.373)
 878  */
 879 BOOL WINAPI GetProcessAffinityMask( HANDLE hProcess,
 880                                       LPDWORD lpProcessAffinityMask,
 881                                       LPDWORD lpSystemAffinityMask )
 882 {
 883     BOOL ret = FALSE;
 884     struct get_process_info_request *req = get_req_buffer();
 885     req->handle = hProcess;
 886     if (!server_call( REQ_GET_PROCESS_INFO ))
 887     {
 888         if (lpProcessAffinityMask) *lpProcessAffinityMask = req->process_affinity;
 889         if (lpSystemAffinityMask) *lpSystemAffinityMask = req->system_affinity;
 890         ret = TRUE;
 891     }
 892     return ret;
 893 }
 894
 895
 896 /***********************************************************************
 897  *           GetStdHandle    (KERNEL32.276)
 898  */
 899 HANDLE WINAPI GetStdHandle( DWORD std_handle )
 900 {
 901     PDB *pdb = PROCESS_Current();
 902
 903     switch(std_handle)
 904     {
 905     case STD_INPUT_HANDLE:  return pdb->env_db->hStdin;
 906     case STD_OUTPUT_HANDLE: return pdb->env_db->hStdout;
 907     case STD_ERROR_HANDLE:  return pdb->env_db->hStderr;
 908     }
 909     SetLastError( ERROR_INVALID_PARAMETER );
 910     return INVALID_HANDLE_VALUE;
 911 }
 912
 913
 914 /***********************************************************************
 915  *           SetStdHandle    (KERNEL32.506)
 916  */
 917 BOOL WINAPI SetStdHandle( DWORD std_handle, HANDLE handle )
 918 {
 919     PDB *pdb = PROCESS_Current();
 920     /* FIXME: should we close the previous handle? */
 921     switch(std_handle)
 922     {
 923     case STD_INPUT_HANDLE:
 924         pdb->env_db->hStdin = handle;
 925         return TRUE;
 926     case STD_OUTPUT_HANDLE:
 927         pdb->env_db->hStdout = handle;
 928         return TRUE;
 929     case STD_ERROR_HANDLE:
 930         pdb->env_db->hStderr = handle;
 931         return TRUE;
 932     }
 933     SetLastError( ERROR_INVALID_PARAMETER );
 934     return FALSE;
 935 }
 936
 937 /***********************************************************************
 938  *           GetProcessVersion    (KERNEL32)
 939  */
 940 DWORD WINAPI GetProcessVersion( DWORD processid )
 941 {
 942     TDB *pTask;
 943     PDB *pdb = PROCESS_IdToPDB( processid );
 944
 945     if (!pdb) return 0;
 946     if (!(pTask = (TDB *)GlobalLock16( pdb->task ))) return 0;
 947     return (pTask->version&0xff) | (((pTask->version >>8) & 0xff)<<16);
 948 }
 949
 950 /***********************************************************************
 951  *           GetProcessFlags    (KERNEL32)
 952  */
 953 DWORD WINAPI GetProcessFlags( DWORD processid )
 954 {
 955     PDB *pdb = PROCESS_IdToPDB( processid );
 956     if (!pdb) return 0;
 957     return pdb->flags;
 958 }
 959
 960 /***********************************************************************
 961  *              SetProcessWorkingSetSize        [KERNEL32.662]
 962  * Sets the min/max working set sizes for a specified process.
 963  *
 964  * PARAMS
 965  *    hProcess [I] Handle to the process of interest
 966  *    minset   [I] Specifies minimum working set size
 967  *    maxset   [I] Specifies maximum working set size
 968  *
 969  * RETURNS  STD
 970  */
 971 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess,DWORD minset,
 972                                        DWORD maxset)
 973 {
 974     FIXME("(0x%08x,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
 975     if(( minset == -1) && (maxset == -1)) {
 976         /* Trim the working set to zero */
 977         /* Swap the process out of physical RAM */
 978     }
 979     return TRUE;
 980 }
 981
 982 /***********************************************************************
 983  *           GetProcessWorkingSetSize    (KERNEL32)
 984  */
 985 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess,LPDWORD minset,
 986                                        LPDWORD maxset)
 987 {
 988         FIXME("(0x%08x,%p,%p): stub\n",hProcess,minset,maxset);
 989         /* 32 MB working set size */
 990         if (minset) *minset = 32*1024*1024;
 991         if (maxset) *maxset = 32*1024*1024;
 992         return TRUE;
 993 }
 994
 995 /***********************************************************************
 996  *           SetProcessShutdownParameters    (KERNEL32)
 997  *
 998  * CHANGED - James Sutherland (JamesSutherland@gmx.de)
 999  * Now tracks changes made (but does not act on these changes)
1000  * NOTE: the definition for SHUTDOWN_NORETRY was done on guesswork.
1001  * It really shouldn't be here, but I'll move it when it's been checked!
1002  */
1003 #define SHUTDOWN_NORETRY 1
1004 static unsigned int shutdown_noretry = 0;
1005 static unsigned int shutdown_priority = 0x280L;
1006 BOOL WINAPI SetProcessShutdownParameters(DWORD level,DWORD flags)
1007 {
1008     if (flags & SHUTDOWN_NORETRY)
1009       shutdown_noretry = 1;
1010     else
1011       shutdown_noretry = 0;
1012     if (level > 0x100L && level < 0x3FFL)
1013       shutdown_priority = level;
1014     else
1015       {
1016         ERR("invalid priority level 0x%08lx\n", level);
1017         return FALSE;
1018       }
1019     return TRUE;
1020 }
1021
1022
1023 /***********************************************************************
1024  * GetProcessShutdownParameters                 (KERNEL32)
1025  *
1026  */
1027 BOOL WINAPI GetProcessShutdownParameters( LPDWORD lpdwLevel,
1028                                             LPDWORD lpdwFlags )
1029 {
1030   (*lpdwLevel) = shutdown_priority;
1031   (*lpdwFlags) = (shutdown_noretry * SHUTDOWN_NORETRY);
1032   return TRUE;
1033 }
1034 /***********************************************************************
1035  *           SetProcessPriorityBoost    (KERNEL32)
1036  */
1037 BOOL WINAPI SetProcessPriorityBoost(HANDLE hprocess,BOOL disableboost)
1038 {
1039     FIXME("(%d,%d): stub\n",hprocess,disableboost);
1040     /* Say we can do it. I doubt the program will notice that we don't. */
1041     return TRUE;
1042 }
1043
1044
1045 /***********************************************************************
1046  *           ReadProcessMemory                  (KERNEL32)
1047  */
1048 BOOL WINAPI ReadProcessMemory( HANDLE process, LPCVOID addr, LPVOID buffer, DWORD size,
1049                                LPDWORD bytes_read )
1050 {
1051     struct read_process_memory_request *req = get_req_buffer();
1052     unsigned int offset = (unsigned int)addr % sizeof(int);
1053     unsigned int max = server_remaining( req->data );  /* max length in one request */
1054     unsigned int pos;
1055
1056     if (bytes_read) *bytes_read = size;
1057
1058     /* first time, read total length to check for permissions */
1059     req->handle = process;
1060     req->addr   = (char *)addr - offset;
1061     req->len    = (size + offset + sizeof(int) - 1) / sizeof(int);
1062     if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1063
1064     if (size <= max - offset)
1065     {
1066         memcpy( buffer, (char *)req->data + offset, size );
1067         return TRUE;
1068     }
1069
1070     /* now take care of the remaining data */
1071     memcpy( buffer, (char *)req->data + offset, max - offset );
1072     pos = max - offset;
1073     size -= pos;
1074     while (size)
1075     {
1076         if (max > size) max = size;
1077         req->handle = process;
1078         req->addr   = (char *)addr + pos;
1079         req->len    = (max + sizeof(int) - 1) / sizeof(int);
1080         if (server_call( REQ_READ_PROCESS_MEMORY )) goto error;
1081         memcpy( (char *)buffer + pos, (char *)req->data, max );
1082         size -= max;
1083         pos += max;
1084     }
1085     return TRUE;
1086
1087  error:
1088     if (bytes_read) *bytes_read = 0;
1089     return FALSE;
1090 }
1091
1092
1093 /***********************************************************************
1094  *           WriteProcessMemory                 (KERNEL32)
1095  */
1096 BOOL WINAPI WriteProcessMemory( HANDLE process, LPVOID addr, LPVOID buffer, DWORD size,
1097                                 LPDWORD bytes_written )
1098 {
1099     unsigned int first_offset, last_offset;
1100     struct write_process_memory_request *req = get_req_buffer();
1101     unsigned int max = server_remaining( req->data );  /* max length in one request */
1102     unsigned int pos, last_mask;
1103
1104     if (!size)
1105     {
1106         SetLastError( ERROR_INVALID_PARAMETER );
1107         return FALSE;
1108     }
1109     if (bytes_written) *bytes_written = size;
1110
1111     /* compute the mask for the first int */
1112     req->first_mask = ~0;
1113     first_offset = (unsigned int)addr % sizeof(int);
1114     memset( &req->first_mask, 0, first_offset );
1115
1116     /* compute the mask for the last int */
1117     last_offset = (size + first_offset) % sizeof(int);
1118     last_mask = 0;
1119     memset( &last_mask, 0xff, last_offset ? last_offset : sizeof(int) );
1120
1121     req->handle = process;
1122     req->addr = (char *)addr - first_offset;
1123     /* for the first request, use the total length */
1124     req->len = (size + first_offset + sizeof(int) - 1) / sizeof(int);
1125
1126     if (size + first_offset < max)  /* we can do it in one round */
1127     {
1128         memcpy( (char *)req->data + first_offset, buffer, size );
1129         req->last_mask = last_mask;
1130         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1131         return TRUE;
1132     }
1133
1134     /* needs multiple server calls */
1135
1136     memcpy( (char *)req->data + first_offset, buffer, max - first_offset );
1137     req->last_mask = ~0;
1138     if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1139     pos = max - first_offset;
1140     size -= pos;
1141     while (size)
1142     {
1143         if (size <= max)  /* last one */
1144         {
1145             req->last_mask = last_mask;
1146             max = size;
1147         }
1148         req->handle = process;
1149         req->addr = (char *)addr + pos;
1150         req->len = (max + sizeof(int) - 1) / sizeof(int);
1151         req->first_mask = ~0;
1152         memcpy( req->data, (char *) buffer + pos, max );
1153         if (server_call( REQ_WRITE_PROCESS_MEMORY )) goto error;
1154         pos += max;
1155         size -= max;
1156     }
1157     return TRUE;
1158
1159  error:
1160     if (bytes_written) *bytes_written = 0;
1161     return FALSE;
1162
1163 }
1164
1165
1166 /***********************************************************************
1167  *           RegisterServiceProcess             (KERNEL, KERNEL32)
1168  *
1169  * A service process calls this function to ensure that it continues to run
1170  * even after a user logged off.
1171  */
1172 DWORD WINAPI RegisterServiceProcess(DWORD dwProcessId, DWORD dwType)
1173 {
1174         /* I don't think that Wine needs to do anything in that function */
1175         return 1; /* success */
1176 }
1177
1178 /***********************************************************************
1179  * GetExitCodeProcess [KERNEL32.325]
1180  *
1181  * Gets termination status of specified process
1182  *
1183  * RETURNS
1184  *   Success: TRUE
1185  *   Failure: FALSE
1186  */
1187 BOOL WINAPI GetExitCodeProcess(
1188     HANDLE hProcess,  /* [I] handle to the process */
1189     LPDWORD lpExitCode) /* [O] address to receive termination status */
1190 {
1191     BOOL ret = FALSE;
1192     struct get_process_info_request *req = get_req_buffer();
1193     req->handle = hProcess;
1194     if (!server_call( REQ_GET_PROCESS_INFO ))
1195     {
1196         if (lpExitCode) *lpExitCode = req->exit_code;
1197         ret = TRUE;
1198     }
1199     return ret;
1200 }
1201
1202
1203 /***********************************************************************
1204  *           SetErrorMode   (KERNEL32.486)
1205  */
1206 UINT WINAPI SetErrorMode( UINT mode )
1207 {
1208     UINT old = PROCESS_Current()->error_mode;
1209     PROCESS_Current()->error_mode = mode;
1210     return old;
1211 }