dlls/kernel32/sync.c

   1 /*
   2  * Kernel synchronization objects
   3  *
   4  * Copyright 1998 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <string.h>
  25 #ifdef HAVE_UNISTD_H
  26 # include <unistd.h>
  27 #endif
  28 #include <errno.h>
  29 #include <stdarg.h>
  30 #include <stdio.h>
  31
  32 #define NONAMELESSUNION
  33 #define NONAMELESSSTRUCT
  34
  35 #include "ntstatus.h"
  36 #define WIN32_NO_STATUS
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winerror.h"
  40 #include "winnls.h"
  41 #include "winternl.h"
  42 #include "winioctl.h"
  43 #include "ddk/wdm.h"
  44
  45 #include "wine/unicode.h"
  46 #include "wine/winbase16.h"
  47 #include "kernel_private.h"
  48
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(sync);
  52
  53 /* check if current version is NT or Win95 */
  54 static inline int is_version_nt(void)
  55 {
  56     return !(GetVersion() & 0x80000000);
  57 }
  58
  59 /* returns directory handle to \\BaseNamedObjects */
  60 HANDLE get_BaseNamedObjects_handle(void)
  61 {
  62     static HANDLE handle = NULL;
  63     static const WCHAR basenameW[] =
  64         {'\\','B','a','s','e','N','a','m','e','d','O','b','j','e','c','t','s',0};
  65     UNICODE_STRING str;
  66     OBJECT_ATTRIBUTES attr;
  67
  68     if (!handle)
  69     {
  70         HANDLE dir;
  71
  72         RtlInitUnicodeString(&str, basenameW);
  73         InitializeObjectAttributes(&attr, &str, 0, 0, NULL);
  74         NtOpenDirectoryObject(&dir, DIRECTORY_CREATE_OBJECT|DIRECTORY_TRAVERSE,
  75                               &attr);
  76         if (InterlockedCompareExchangePointer( (PVOID)&handle, dir, 0 ) != 0)
  77         {
  78             /* someone beat us here... */
  79             CloseHandle( dir );
  80         }
  81     }
  82     return handle;
  83 }
  84
  85 /* helper for kernel32->ntdll timeout format conversion */
  86 static inline PLARGE_INTEGER get_nt_timeout( PLARGE_INTEGER pTime, DWORD timeout )
  87 {
  88     if (timeout == INFINITE) return NULL;
  89     pTime->QuadPart = (ULONGLONG)timeout * -10000;
  90     return pTime;
  91 }
  92
  93 /***********************************************************************
  94  *              Sleep  (KERNEL32.@)
  95  */
  96 VOID WINAPI Sleep( DWORD timeout )
  97 {
  98     SleepEx( timeout, FALSE );
  99 }
 100
 101 /******************************************************************************
 102  *              SleepEx   (KERNEL32.@)
 103  */
 104 DWORD WINAPI SleepEx( DWORD timeout, BOOL alertable )
 105 {
 106     NTSTATUS status;
 107     LARGE_INTEGER time;
 108
 109     status = NtDelayExecution( alertable, get_nt_timeout( &time, timeout ) );
 110     if (status == STATUS_USER_APC) return WAIT_IO_COMPLETION;
 111     return 0;
 112 }
 113
 114
 115 /***********************************************************************
 116  *              SwitchToThread (KERNEL32.@)
 117  */
 118 BOOL WINAPI SwitchToThread(void)
 119 {
 120     return (NtYieldExecution() != STATUS_NO_YIELD_PERFORMED);
 121 }
 122
 123
 124 /***********************************************************************
 125  *           WaitForSingleObject   (KERNEL32.@)
 126  */
 127 DWORD WINAPI WaitForSingleObject( HANDLE handle, DWORD timeout )
 128 {
 129     return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, FALSE );
 130 }
 131
 132
 133 /***********************************************************************
 134  *           WaitForSingleObjectEx   (KERNEL32.@)
 135  */
 136 DWORD WINAPI WaitForSingleObjectEx( HANDLE handle, DWORD timeout,
 137                                     BOOL alertable )
 138 {
 139     return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, alertable );
 140 }
 141
 142
 143 /***********************************************************************
 144  *           WaitForMultipleObjects   (KERNEL32.@)
 145  */
 146 DWORD WINAPI WaitForMultipleObjects( DWORD count, const HANDLE *handles,
 147                                      BOOL wait_all, DWORD timeout )
 148 {
 149     return WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
 150 }
 151
 152
 153 /***********************************************************************
 154  *           WaitForMultipleObjectsEx   (KERNEL32.@)
 155  */
 156 DWORD WINAPI WaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
 157                                        BOOL wait_all, DWORD timeout,
 158                                        BOOL alertable )
 159 {
 160     NTSTATUS status;
 161     HANDLE hloc[MAXIMUM_WAIT_OBJECTS];
 162     LARGE_INTEGER time;
 163     unsigned int i;
 164
 165     if (count > MAXIMUM_WAIT_OBJECTS)
 166     {
 167         SetLastError(ERROR_INVALID_PARAMETER);
 168         return WAIT_FAILED;
 169     }
 170     for (i = 0; i < count; i++)
 171     {
 172         if ((handles[i] == (HANDLE)STD_INPUT_HANDLE) ||
 173             (handles[i] == (HANDLE)STD_OUTPUT_HANDLE) ||
 174             (handles[i] == (HANDLE)STD_ERROR_HANDLE))
 175             hloc[i] = GetStdHandle( HandleToULong(handles[i]) );
 176         else
 177             hloc[i] = handles[i];
 178
 179         /* yes, even screen buffer console handles are waitable, and are
 180          * handled as a handle to the console itself !!
 181          */
 182         if (is_console_handle(hloc[i]))
 183         {
 184             if (!VerifyConsoleIoHandle(hloc[i]))
 185             {
 186                 return FALSE;
 187             }
 188             hloc[i] = GetConsoleInputWaitHandle();
 189         }
 190     }
 191
 192     status = NtWaitForMultipleObjects( count, hloc, wait_all, alertable,
 193                                        get_nt_timeout( &time, timeout ) );
 194
 195     if (HIWORD(status))  /* is it an error code? */
 196     {
 197         SetLastError( RtlNtStatusToDosError(status) );
 198         status = WAIT_FAILED;
 199     }
 200     return status;
 201 }
 202
 203
 204 /***********************************************************************
 205  *           WaitForSingleObject   (KERNEL.460)
 206  */
 207 DWORD WINAPI WaitForSingleObject16( HANDLE handle, DWORD timeout )
 208 {
 209     DWORD retval, mutex_count;
 210
 211     ReleaseThunkLock( &mutex_count );
 212     retval = WaitForSingleObject( handle, timeout );
 213     RestoreThunkLock( mutex_count );
 214     return retval;
 215 }
 216
 217 /***********************************************************************
 218  *           WaitForMultipleObjects   (KERNEL.461)
 219  */
 220 DWORD WINAPI WaitForMultipleObjects16( DWORD count, const HANDLE *handles,
 221                                        BOOL wait_all, DWORD timeout )
 222 {
 223     DWORD retval, mutex_count;
 224
 225     ReleaseThunkLock( &mutex_count );
 226     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
 227     RestoreThunkLock( mutex_count );
 228     return retval;
 229 }
 230
 231 /***********************************************************************
 232  *           WaitForMultipleObjectsEx   (KERNEL.495)
 233  */
 234 DWORD WINAPI WaitForMultipleObjectsEx16( DWORD count, const HANDLE *handles,
 235                                          BOOL wait_all, DWORD timeout, BOOL alertable )
 236 {
 237     DWORD retval, mutex_count;
 238
 239     ReleaseThunkLock( &mutex_count );
 240     retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, alertable );
 241     RestoreThunkLock( mutex_count );
 242     return retval;
 243 }
 244
 245 /***********************************************************************
 246  *           RegisterWaitForSingleObject   (KERNEL32.@)
 247  */
 248 BOOL WINAPI RegisterWaitForSingleObject(PHANDLE phNewWaitObject, HANDLE hObject,
 249                 WAITORTIMERCALLBACK Callback, PVOID Context,
 250                 ULONG dwMilliseconds, ULONG dwFlags)
 251 {
 252     NTSTATUS status;
 253
 254     TRACE("%p %p %p %p %d %d\n",
 255           phNewWaitObject,hObject,Callback,Context,dwMilliseconds,dwFlags);
 256
 257     status = RtlRegisterWait( phNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags );
 258     if (status != STATUS_SUCCESS)
 259     {
 260         SetLastError( RtlNtStatusToDosError(status) );
 261         return FALSE;
 262     }
 263     return TRUE;
 264 }
 265
 266 /***********************************************************************
 267  *           RegisterWaitForSingleObjectEx   (KERNEL32.@)
 268  */
 269 HANDLE WINAPI RegisterWaitForSingleObjectEx( HANDLE hObject,
 270                 WAITORTIMERCALLBACK Callback, PVOID Context,
 271                 ULONG dwMilliseconds, ULONG dwFlags )
 272 {
 273     NTSTATUS status;
 274     HANDLE hNewWaitObject;
 275
 276     TRACE("%p %p %p %d %d\n",
 277           hObject,Callback,Context,dwMilliseconds,dwFlags);
 278
 279     status = RtlRegisterWait( &hNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags );
 280     if (status != STATUS_SUCCESS)
 281     {
 282         SetLastError( RtlNtStatusToDosError(status) );
 283         return NULL;
 284     }
 285     return hNewWaitObject;
 286 }
 287
 288 /***********************************************************************
 289  *           UnregisterWait   (KERNEL32.@)
 290  */
 291 BOOL WINAPI UnregisterWait( HANDLE WaitHandle )
 292 {
 293     NTSTATUS status;
 294
 295     TRACE("%p\n",WaitHandle);
 296
 297     status = RtlDeregisterWait( WaitHandle );
 298     if (status != STATUS_SUCCESS)
 299     {
 300         SetLastError( RtlNtStatusToDosError(status) );
 301         return FALSE;
 302     }
 303     return TRUE;
 304 }
 305
 306 /***********************************************************************
 307  *           UnregisterWaitEx   (KERNEL32.@)
 308  */
 309 BOOL WINAPI UnregisterWaitEx( HANDLE WaitHandle, HANDLE CompletionEvent )
 310 {
 311     FIXME("%p %p\n",WaitHandle, CompletionEvent);
 312     return FALSE;
 313 }
 314
 315 /***********************************************************************
 316  *           SignalObjectAndWait  (KERNEL32.@)
 317  *
 318  * Allows to atomically signal any of the synchro objects (semaphore,
 319  * mutex, event) and wait on another.
 320  */
 321 DWORD WINAPI SignalObjectAndWait( HANDLE hObjectToSignal, HANDLE hObjectToWaitOn,
 322                                   DWORD dwMilliseconds, BOOL bAlertable )
 323 {
 324     NTSTATUS status;
 325     LARGE_INTEGER timeout;
 326
 327     TRACE("%p %p %d %d\n", hObjectToSignal,
 328           hObjectToWaitOn, dwMilliseconds, bAlertable);
 329
 330     status = NtSignalAndWaitForSingleObject( hObjectToSignal, hObjectToWaitOn, bAlertable,
 331                                              get_nt_timeout( &timeout, dwMilliseconds ) );
 332     if (HIWORD(status))
 333     {
 334         SetLastError( RtlNtStatusToDosError(status) );
 335         status = WAIT_FAILED;
 336     }
 337     return status;
 338 }
 339
 340 /***********************************************************************
 341  *           InitializeCriticalSection   (KERNEL32.@)
 342  *
 343  * Initialise a critical section before use.
 344  *
 345  * PARAMS
 346  *  crit [O] Critical section to initialise.
 347  *
 348  * RETURNS
 349  *  Nothing. If the function fails an exception is raised.
 350  */
 351 void WINAPI InitializeCriticalSection( CRITICAL_SECTION *crit )
 352 {
 353     InitializeCriticalSectionEx( crit, 0, 0 );
 354 }
 355
 356 /***********************************************************************
 357  *           InitializeCriticalSectionAndSpinCount   (KERNEL32.@)
 358  *
 359  * Initialise a critical section with a spin count.
 360  *
 361  * PARAMS
 362  *  crit      [O] Critical section to initialise.
 363  *  spincount [I] Number of times to spin upon contention.
 364  *
 365  * RETURNS
 366  *  Success: TRUE.
 367  *  Failure: Nothing. If the function fails an exception is raised.
 368  *
 369  * NOTES
 370  *  spincount is ignored on uni-processor systems.
 371  */
 372 BOOL WINAPI InitializeCriticalSectionAndSpinCount( CRITICAL_SECTION *crit, DWORD spincount )
 373 {
 374     return InitializeCriticalSectionEx( crit, spincount, 0 );
 375 }
 376
 377 /***********************************************************************
 378  *           InitializeCriticalSectionEx   (KERNEL32.@)
 379  *
 380  * Initialise a critical section with a spin count and flags.
 381  *
 382  * PARAMS
 383  *  crit      [O] Critical section to initialise.
 384  *  spincount [I] Number of times to spin upon contention.
 385  *  flags     [I] CRITICAL_SECTION_ flags from winbase.h.
 386  *
 387  * RETURNS
 388  *  Success: TRUE.
 389  *  Failure: Nothing. If the function fails an exception is raised.
 390  *
 391  * NOTES
 392  *  spincount is ignored on uni-processor systems.
 393  */
 394 BOOL WINAPI InitializeCriticalSectionEx( CRITICAL_SECTION *crit, DWORD spincount, DWORD flags )
 395 {
 396     NTSTATUS ret = RtlInitializeCriticalSectionEx( crit, spincount, flags );
 397     if (ret) RtlRaiseStatus( ret );
 398     return !ret;
 399 }
 400
 401 /***********************************************************************
 402  *           MakeCriticalSectionGlobal   (KERNEL32.@)
 403  */
 404 void WINAPI MakeCriticalSectionGlobal( CRITICAL_SECTION *crit )
 405 {
 406     /* let's assume that only one thread at a time will try to do this */
 407     HANDLE sem = crit->LockSemaphore;
 408     if (!sem) NtCreateSemaphore( &sem, SEMAPHORE_ALL_ACCESS, NULL, 0, 1 );
 409     crit->LockSemaphore = ConvertToGlobalHandle( sem );
 410     RtlFreeHeap( GetProcessHeap(), 0, crit->DebugInfo );
 411     crit->DebugInfo = NULL;
 412 }
 413
 414
 415 /***********************************************************************
 416  *           ReinitializeCriticalSection   (KERNEL32.@)
 417  *
 418  * Initialise an already used critical section.
 419  *
 420  * PARAMS
 421  *  crit [O] Critical section to initialise.
 422  *
 423  * RETURNS
 424  *  Nothing.
 425  */
 426 void WINAPI ReinitializeCriticalSection( CRITICAL_SECTION *crit )
 427 {
 428     if ( !crit->LockSemaphore )
 429         RtlInitializeCriticalSection( crit );
 430 }
 431
 432
 433 /***********************************************************************
 434  *           UninitializeCriticalSection   (KERNEL32.@)
 435  *
 436  * UnInitialise a critical section after use.
 437  *
 438  * PARAMS
 439  *  crit [O] Critical section to uninitialise (destroy).
 440  *
 441  * RETURNS
 442  *  Nothing.
 443  */
 444 void WINAPI UninitializeCriticalSection( CRITICAL_SECTION *crit )
 445 {
 446     RtlDeleteCriticalSection( crit );
 447 }
 448
 449
 450 /***********************************************************************
 451  *           CreateEventA    (KERNEL32.@)
 452  */
 453 HANDLE WINAPI CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
 454                             BOOL initial_state, LPCSTR name )
 455 {
 456     WCHAR buffer[MAX_PATH];
 457
 458     if (!name) return CreateEventW( sa, manual_reset, initial_state, NULL );
 459
 460     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 461     {
 462         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 463         return 0;
 464     }
 465     return CreateEventW( sa, manual_reset, initial_state, buffer );
 466 }
 467
 468
 469 /***********************************************************************
 470  *           CreateEventW    (KERNEL32.@)
 471  */
 472 HANDLE WINAPI CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
 473                             BOOL initial_state, LPCWSTR name )
 474 {
 475     HANDLE ret;
 476     UNICODE_STRING nameW;
 477     OBJECT_ATTRIBUTES attr;
 478     NTSTATUS status;
 479
 480     /* one buggy program needs this
 481      * ("Van Dale Groot woordenboek der Nederlandse taal")
 482      */
 483     if (sa && IsBadReadPtr(sa,sizeof(SECURITY_ATTRIBUTES)))
 484     {
 485         ERR("Bad security attributes pointer %p\n",sa);
 486         SetLastError( ERROR_INVALID_PARAMETER);
 487         return 0;
 488     }
 489
 490     attr.Length                   = sizeof(attr);
 491     attr.RootDirectory            = 0;
 492     attr.ObjectName               = NULL;
 493     attr.Attributes               = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 494     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
 495     attr.SecurityQualityOfService = NULL;
 496     if (name)
 497     {
 498         RtlInitUnicodeString( &nameW, name );
 499         attr.ObjectName = &nameW;
 500         attr.RootDirectory = get_BaseNamedObjects_handle();
 501     }
 502
 503     status = NtCreateEvent( &ret, EVENT_ALL_ACCESS, &attr, manual_reset, initial_state );
 504     if (status == STATUS_OBJECT_NAME_EXISTS)
 505         SetLastError( ERROR_ALREADY_EXISTS );
 506     else
 507         SetLastError( RtlNtStatusToDosError(status) );
 508     return ret;
 509 }
 510
 511
 512 /***********************************************************************
 513  *           CreateW32Event    (KERNEL.457)
 514  */
 515 HANDLE WINAPI WIN16_CreateEvent( BOOL manual_reset, BOOL initial_state )
 516 {
 517     return CreateEventW( NULL, manual_reset, initial_state, NULL );
 518 }
 519
 520
 521 /***********************************************************************
 522  *           OpenEventA    (KERNEL32.@)
 523  */
 524 HANDLE WINAPI OpenEventA( DWORD access, BOOL inherit, LPCSTR name )
 525 {
 526     WCHAR buffer[MAX_PATH];
 527
 528     if (!name) return OpenEventW( access, inherit, NULL );
 529
 530     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 531     {
 532         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 533         return 0;
 534     }
 535     return OpenEventW( access, inherit, buffer );
 536 }
 537
 538
 539 /***********************************************************************
 540  *           OpenEventW    (KERNEL32.@)
 541  */
 542 HANDLE WINAPI OpenEventW( DWORD access, BOOL inherit, LPCWSTR name )
 543 {
 544     HANDLE ret;
 545     UNICODE_STRING nameW;
 546     OBJECT_ATTRIBUTES attr;
 547     NTSTATUS status;
 548
 549     if (!is_version_nt()) access = EVENT_ALL_ACCESS;
 550
 551     attr.Length                   = sizeof(attr);
 552     attr.RootDirectory            = 0;
 553     attr.ObjectName               = NULL;
 554     attr.Attributes               = inherit ? OBJ_INHERIT : 0;
 555     attr.SecurityDescriptor       = NULL;
 556     attr.SecurityQualityOfService = NULL;
 557     if (name)
 558     {
 559         RtlInitUnicodeString( &nameW, name );
 560         attr.ObjectName = &nameW;
 561         attr.RootDirectory = get_BaseNamedObjects_handle();
 562     }
 563
 564     status = NtOpenEvent( &ret, access, &attr );
 565     if (status != STATUS_SUCCESS)
 566     {
 567         SetLastError( RtlNtStatusToDosError(status) );
 568         return 0;
 569     }
 570     return ret;
 571 }
 572
 573 /***********************************************************************
 574  *           PulseEvent    (KERNEL32.@)
 575  */
 576 BOOL WINAPI PulseEvent( HANDLE handle )
 577 {
 578     NTSTATUS status;
 579
 580     if ((status = NtPulseEvent( handle, NULL )))
 581         SetLastError( RtlNtStatusToDosError(status) );
 582     return !status;
 583 }
 584
 585
 586 /***********************************************************************
 587  *           SetW32Event (KERNEL.458)
 588  *           SetEvent    (KERNEL32.@)
 589  */
 590 BOOL WINAPI SetEvent( HANDLE handle )
 591 {
 592     NTSTATUS status;
 593
 594     if ((status = NtSetEvent( handle, NULL )))
 595         SetLastError( RtlNtStatusToDosError(status) );
 596     return !status;
 597 }
 598
 599
 600 /***********************************************************************
 601  *           ResetW32Event (KERNEL.459)
 602  *           ResetEvent    (KERNEL32.@)
 603  */
 604 BOOL WINAPI ResetEvent( HANDLE handle )
 605 {
 606     NTSTATUS status;
 607
 608     if ((status = NtResetEvent( handle, NULL )))
 609         SetLastError( RtlNtStatusToDosError(status) );
 610     return !status;
 611 }
 612
 613
 614 /***********************************************************************
 615  * NOTE: The Win95 VWin32_Event routines given below are really low-level
 616  *       routines implemented directly by VWin32. The user-mode libraries
 617  *       implement Win32 synchronisation routines on top of these low-level
 618  *       primitives. We do it the other way around here :-)
 619  */
 620
 621 /***********************************************************************
 622  *       VWin32_EventCreate     (KERNEL.442)
 623  */
 624 HANDLE WINAPI VWin32_EventCreate(VOID)
 625 {
 626     HANDLE hEvent = CreateEventW( NULL, FALSE, 0, NULL );
 627     return ConvertToGlobalHandle( hEvent );
 628 }
 629
 630 /***********************************************************************
 631  *       VWin32_EventDestroy    (KERNEL.443)
 632  */
 633 VOID WINAPI VWin32_EventDestroy(HANDLE event)
 634 {
 635     CloseHandle( event );
 636 }
 637
 638 /***********************************************************************
 639  *       VWin32_EventWait       (KERNEL.450)
 640  */
 641 VOID WINAPI VWin32_EventWait(HANDLE event)
 642 {
 643     DWORD mutex_count;
 644
 645     ReleaseThunkLock( &mutex_count );
 646     WaitForSingleObject( event, INFINITE );
 647     RestoreThunkLock( mutex_count );
 648 }
 649
 650 /***********************************************************************
 651  *       VWin32_EventSet        (KERNEL.451)
 652  *       KERNEL_479             (KERNEL.479)
 653  */
 654 VOID WINAPI VWin32_EventSet(HANDLE event)
 655 {
 656     SetEvent( event );
 657 }
 658
 659
 660
 661 /***********************************************************************
 662  *           CreateMutexA   (KERNEL32.@)
 663  */
 664 HANDLE WINAPI CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name )
 665 {
 666     WCHAR buffer[MAX_PATH];
 667
 668     if (!name) return CreateMutexW( sa, owner, NULL );
 669
 670     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 671     {
 672         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 673         return 0;
 674     }
 675     return CreateMutexW( sa, owner, buffer );
 676 }
 677
 678
 679 /***********************************************************************
 680  *           CreateMutexW   (KERNEL32.@)
 681  */
 682 HANDLE WINAPI CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCWSTR name )
 683 {
 684     HANDLE ret;
 685     UNICODE_STRING nameW;
 686     OBJECT_ATTRIBUTES attr;
 687     NTSTATUS status;
 688
 689     attr.Length                   = sizeof(attr);
 690     attr.RootDirectory            = 0;
 691     attr.ObjectName               = NULL;
 692     attr.Attributes               = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 693     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
 694     attr.SecurityQualityOfService = NULL;
 695     if (name)
 696     {
 697         RtlInitUnicodeString( &nameW, name );
 698         attr.ObjectName = &nameW;
 699         attr.RootDirectory = get_BaseNamedObjects_handle();
 700     }
 701
 702     status = NtCreateMutant( &ret, MUTEX_ALL_ACCESS, &attr, owner );
 703     if (status == STATUS_OBJECT_NAME_EXISTS)
 704         SetLastError( ERROR_ALREADY_EXISTS );
 705     else
 706         SetLastError( RtlNtStatusToDosError(status) );
 707     return ret;
 708 }
 709
 710
 711 /***********************************************************************
 712  *           OpenMutexA   (KERNEL32.@)
 713  */
 714 HANDLE WINAPI OpenMutexA( DWORD access, BOOL inherit, LPCSTR name )
 715 {
 716     WCHAR buffer[MAX_PATH];
 717
 718     if (!name) return OpenMutexW( access, inherit, NULL );
 719
 720     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 721     {
 722         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 723         return 0;
 724     }
 725     return OpenMutexW( access, inherit, buffer );
 726 }
 727
 728
 729 /***********************************************************************
 730  *           OpenMutexW   (KERNEL32.@)
 731  */
 732 HANDLE WINAPI OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name )
 733 {
 734     HANDLE ret;
 735     UNICODE_STRING nameW;
 736     OBJECT_ATTRIBUTES attr;
 737     NTSTATUS status;
 738
 739     if (!is_version_nt()) access = MUTEX_ALL_ACCESS;
 740
 741     attr.Length                   = sizeof(attr);
 742     attr.RootDirectory            = 0;
 743     attr.ObjectName               = NULL;
 744     attr.Attributes               = inherit ? OBJ_INHERIT : 0;
 745     attr.SecurityDescriptor       = NULL;
 746     attr.SecurityQualityOfService = NULL;
 747     if (name)
 748     {
 749         RtlInitUnicodeString( &nameW, name );
 750         attr.ObjectName = &nameW;
 751         attr.RootDirectory = get_BaseNamedObjects_handle();
 752     }
 753
 754     status = NtOpenMutant( &ret, access, &attr );
 755     if (status != STATUS_SUCCESS)
 756     {
 757         SetLastError( RtlNtStatusToDosError(status) );
 758         return 0;
 759     }
 760     return ret;
 761 }
 762
 763
 764 /***********************************************************************
 765  *           ReleaseMutex   (KERNEL32.@)
 766  */
 767 BOOL WINAPI ReleaseMutex( HANDLE handle )
 768 {
 769     NTSTATUS    status;
 770
 771     status = NtReleaseMutant(handle, NULL);
 772     if (status != STATUS_SUCCESS)
 773     {
 774         SetLastError( RtlNtStatusToDosError(status) );
 775         return FALSE;
 776     }
 777     return TRUE;
 778 }
 779
 780
 781 /*
 782  * Semaphores
 783  */
 784
 785
 786 /***********************************************************************
 787  *           CreateSemaphoreA   (KERNEL32.@)
 788  */
 789 HANDLE WINAPI CreateSemaphoreA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCSTR name )
 790 {
 791     WCHAR buffer[MAX_PATH];
 792
 793     if (!name) return CreateSemaphoreW( sa, initial, max, NULL );
 794
 795     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 796     {
 797         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 798         return 0;
 799     }
 800     return CreateSemaphoreW( sa, initial, max, buffer );
 801 }
 802
 803
 804 /***********************************************************************
 805  *           CreateSemaphoreW   (KERNEL32.@)
 806  */
 807 HANDLE WINAPI CreateSemaphoreW( SECURITY_ATTRIBUTES *sa, LONG initial,
 808                                 LONG max, LPCWSTR name )
 809 {
 810     HANDLE ret;
 811     UNICODE_STRING nameW;
 812     OBJECT_ATTRIBUTES attr;
 813     NTSTATUS status;
 814
 815     attr.Length                   = sizeof(attr);
 816     attr.RootDirectory            = 0;
 817     attr.ObjectName               = NULL;
 818     attr.Attributes               = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 819     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
 820     attr.SecurityQualityOfService = NULL;
 821     if (name)
 822     {
 823         RtlInitUnicodeString( &nameW, name );
 824         attr.ObjectName = &nameW;
 825         attr.RootDirectory = get_BaseNamedObjects_handle();
 826     }
 827
 828     status = NtCreateSemaphore( &ret, SEMAPHORE_ALL_ACCESS, &attr, initial, max );
 829     if (status == STATUS_OBJECT_NAME_EXISTS)
 830         SetLastError( ERROR_ALREADY_EXISTS );
 831     else
 832         SetLastError( RtlNtStatusToDosError(status) );
 833     return ret;
 834 }
 835
 836
 837 /***********************************************************************
 838  *           OpenSemaphoreA   (KERNEL32.@)
 839  */
 840 HANDLE WINAPI OpenSemaphoreA( DWORD access, BOOL inherit, LPCSTR name )
 841 {
 842     WCHAR buffer[MAX_PATH];
 843
 844     if (!name) return OpenSemaphoreW( access, inherit, NULL );
 845
 846     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 847     {
 848         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 849         return 0;
 850     }
 851     return OpenSemaphoreW( access, inherit, buffer );
 852 }
 853
 854
 855 /***********************************************************************
 856  *           OpenSemaphoreW   (KERNEL32.@)
 857  */
 858 HANDLE WINAPI OpenSemaphoreW( DWORD access, BOOL inherit, LPCWSTR name )
 859 {
 860     HANDLE ret;
 861     UNICODE_STRING nameW;
 862     OBJECT_ATTRIBUTES attr;
 863     NTSTATUS status;
 864
 865     if (!is_version_nt()) access = SEMAPHORE_ALL_ACCESS;
 866
 867     attr.Length                   = sizeof(attr);
 868     attr.RootDirectory            = 0;
 869     attr.ObjectName               = NULL;
 870     attr.Attributes               = inherit ? OBJ_INHERIT : 0;
 871     attr.SecurityDescriptor       = NULL;
 872     attr.SecurityQualityOfService = NULL;
 873     if (name)
 874     {
 875         RtlInitUnicodeString( &nameW, name );
 876         attr.ObjectName = &nameW;
 877         attr.RootDirectory = get_BaseNamedObjects_handle();
 878     }
 879
 880     status = NtOpenSemaphore( &ret, access, &attr );
 881     if (status != STATUS_SUCCESS)
 882     {
 883         SetLastError( RtlNtStatusToDosError(status) );
 884         return 0;
 885     }
 886     return ret;
 887 }
 888
 889
 890 /***********************************************************************
 891  *           ReleaseSemaphore   (KERNEL32.@)
 892  */
 893 BOOL WINAPI ReleaseSemaphore( HANDLE handle, LONG count, LONG *previous )
 894 {
 895     NTSTATUS status = NtReleaseSemaphore( handle, count, (PULONG)previous );
 896     if (status) SetLastError( RtlNtStatusToDosError(status) );
 897     return !status;
 898 }
 899
 900
 901 /*
 902  * Timers
 903  */
 904
 905
 906 /***********************************************************************
 907  *           CreateWaitableTimerA    (KERNEL32.@)
 908  */
 909 HANDLE WINAPI CreateWaitableTimerA( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCSTR name )
 910 {
 911     WCHAR buffer[MAX_PATH];
 912
 913     if (!name) return CreateWaitableTimerW( sa, manual, NULL );
 914
 915     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 916     {
 917         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 918         return 0;
 919     }
 920     return CreateWaitableTimerW( sa, manual, buffer );
 921 }
 922
 923
 924 /***********************************************************************
 925  *           CreateWaitableTimerW    (KERNEL32.@)
 926  */
 927 HANDLE WINAPI CreateWaitableTimerW( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCWSTR name )
 928 {
 929     HANDLE handle;
 930     NTSTATUS status;
 931     UNICODE_STRING nameW;
 932     OBJECT_ATTRIBUTES attr;
 933
 934     attr.Length                   = sizeof(attr);
 935     attr.RootDirectory            = 0;
 936     attr.ObjectName               = NULL;
 937     attr.Attributes               = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 938     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
 939     attr.SecurityQualityOfService = NULL;
 940     if (name)
 941     {
 942         RtlInitUnicodeString( &nameW, name );
 943         attr.ObjectName = &nameW;
 944         attr.RootDirectory = get_BaseNamedObjects_handle();
 945     }
 946
 947     status = NtCreateTimer(&handle, TIMER_ALL_ACCESS, &attr,
 948                            manual ? NotificationTimer : SynchronizationTimer);
 949     if (status == STATUS_OBJECT_NAME_EXISTS)
 950         SetLastError( ERROR_ALREADY_EXISTS );
 951     else
 952         SetLastError( RtlNtStatusToDosError(status) );
 953     return handle;
 954 }
 955
 956
 957 /***********************************************************************
 958  *           OpenWaitableTimerA    (KERNEL32.@)
 959  */
 960 HANDLE WINAPI OpenWaitableTimerA( DWORD access, BOOL inherit, LPCSTR name )
 961 {
 962     WCHAR buffer[MAX_PATH];
 963
 964     if (!name) return OpenWaitableTimerW( access, inherit, NULL );
 965
 966     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 967     {
 968         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 969         return 0;
 970     }
 971     return OpenWaitableTimerW( access, inherit, buffer );
 972 }
 973
 974
 975 /***********************************************************************
 976  *           OpenWaitableTimerW    (KERNEL32.@)
 977  */
 978 HANDLE WINAPI OpenWaitableTimerW( DWORD access, BOOL inherit, LPCWSTR name )
 979 {
 980     HANDLE handle;
 981     UNICODE_STRING nameW;
 982     OBJECT_ATTRIBUTES attr;
 983     NTSTATUS status;
 984
 985     if (!is_version_nt()) access = TIMER_ALL_ACCESS;
 986
 987     attr.Length                   = sizeof(attr);
 988     attr.RootDirectory            = 0;
 989     attr.ObjectName               = NULL;
 990     attr.Attributes               = inherit ? OBJ_INHERIT : 0;
 991     attr.SecurityDescriptor       = NULL;
 992     attr.SecurityQualityOfService = NULL;
 993     if (name)
 994     {
 995         RtlInitUnicodeString( &nameW, name );
 996         attr.ObjectName = &nameW;
 997         attr.RootDirectory = get_BaseNamedObjects_handle();
 998     }
 999
1000     status = NtOpenTimer(&handle, access, &attr);
1001     if (status != STATUS_SUCCESS)
1002     {
1003         SetLastError( RtlNtStatusToDosError(status) );
1004         return 0;
1005     }
1006     return handle;
1007 }
1008
1009
1010 /***********************************************************************
1011  *           SetWaitableTimer    (KERNEL32.@)
1012  */
1013 BOOL WINAPI SetWaitableTimer( HANDLE handle, const LARGE_INTEGER *when, LONG period,
1014                               PTIMERAPCROUTINE callback, LPVOID arg, BOOL resume )
1015 {
1016     NTSTATUS status = NtSetTimer(handle, when, (PTIMER_APC_ROUTINE)callback,
1017                                  arg, resume, period, NULL);
1018
1019     if (status != STATUS_SUCCESS)
1020     {
1021         SetLastError( RtlNtStatusToDosError(status) );
1022         if (status != STATUS_TIMER_RESUME_IGNORED) return FALSE;
1023     }
1024     return TRUE;
1025 }
1026
1027
1028 /***********************************************************************
1029  *           CancelWaitableTimer    (KERNEL32.@)
1030  */
1031 BOOL WINAPI CancelWaitableTimer( HANDLE handle )
1032 {
1033     NTSTATUS status;
1034
1035     status = NtCancelTimer(handle, NULL);
1036     if (status != STATUS_SUCCESS)
1037     {
1038         SetLastError( RtlNtStatusToDosError(status) );
1039         return FALSE;
1040     }
1041     return TRUE;
1042 }
1043
1044
1045 /***********************************************************************
1046  *           CreateTimerQueue  (KERNEL32.@)
1047  */
1048 HANDLE WINAPI CreateTimerQueue(void)
1049 {
1050     HANDLE q;
1051     NTSTATUS status = RtlCreateTimerQueue(&q);
1052
1053     if (status != STATUS_SUCCESS)
1054     {
1055         SetLastError( RtlNtStatusToDosError(status) );
1056         return NULL;
1057     }
1058
1059     return q;
1060 }
1061
1062
1063 /***********************************************************************
1064  *           DeleteTimerQueueEx  (KERNEL32.@)
1065  */
1066 BOOL WINAPI DeleteTimerQueueEx(HANDLE TimerQueue, HANDLE CompletionEvent)
1067 {
1068     NTSTATUS status = RtlDeleteTimerQueueEx(TimerQueue, CompletionEvent);
1069
1070     if (status != STATUS_SUCCESS)
1071     {
1072         SetLastError( RtlNtStatusToDosError(status) );
1073         return FALSE;
1074     }
1075
1076     return TRUE;
1077 }
1078
1079 /***********************************************************************
1080  *           CreateTimerQueueTimer  (KERNEL32.@)
1081  *
1082  * Creates a timer-queue timer. This timer expires at the specified due
1083  * time (in ms), then after every specified period (in ms). When the timer
1084  * expires, the callback function is called.
1085  *
1086  * RETURNS
1087  *   nonzero on success or zero on failure
1088  */
1089 BOOL WINAPI CreateTimerQueueTimer( PHANDLE phNewTimer, HANDLE TimerQueue,
1090                                    WAITORTIMERCALLBACK Callback, PVOID Parameter,
1091                                    DWORD DueTime, DWORD Period, ULONG Flags )
1092 {
1093     NTSTATUS status = RtlCreateTimer(phNewTimer, TimerQueue, Callback,
1094                                      Parameter, DueTime, Period, Flags);
1095
1096     if (status != STATUS_SUCCESS)
1097     {
1098         SetLastError( RtlNtStatusToDosError(status) );
1099         return FALSE;
1100     }
1101
1102     return TRUE;
1103 }
1104
1105 /***********************************************************************
1106  *           ChangeTimerQueueTimer  (KERNEL32.@)
1107  *
1108  * Changes the times at which the timer expires.
1109  *
1110  * RETURNS
1111  *   nonzero on success or zero on failure
1112  */
1113 BOOL WINAPI ChangeTimerQueueTimer( HANDLE TimerQueue, HANDLE Timer,
1114                                    ULONG DueTime, ULONG Period )
1115 {
1116     NTSTATUS status = RtlUpdateTimer(TimerQueue, Timer, DueTime, Period);
1117
1118     if (status != STATUS_SUCCESS)
1119     {
1120         SetLastError( RtlNtStatusToDosError(status) );
1121         return FALSE;
1122     }
1123
1124     return TRUE;
1125 }
1126
1127 /***********************************************************************
1128  *           DeleteTimerQueueTimer  (KERNEL32.@)
1129  *
1130  * Cancels a timer-queue timer.
1131  *
1132  * RETURNS
1133  *   nonzero on success or zero on failure
1134  */
1135 BOOL WINAPI DeleteTimerQueueTimer( HANDLE TimerQueue, HANDLE Timer,
1136                                    HANDLE CompletionEvent )
1137 {
1138     NTSTATUS status = RtlDeleteTimer(TimerQueue, Timer, CompletionEvent);
1139     if (status != STATUS_SUCCESS)
1140     {
1141         SetLastError( RtlNtStatusToDosError(status) );
1142         return FALSE;
1143     }
1144     return TRUE;
1145 }
1146
1147
1148 /*
1149  * Pipes
1150  */
1151
1152
1153 /***********************************************************************
1154  *           CreateNamedPipeA   (KERNEL32.@)
1155  */
1156 HANDLE WINAPI CreateNamedPipeA( LPCSTR name, DWORD dwOpenMode,
1157                                 DWORD dwPipeMode, DWORD nMaxInstances,
1158                                 DWORD nOutBufferSize, DWORD nInBufferSize,
1159                                 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr )
1160 {
1161     WCHAR buffer[MAX_PATH];
1162
1163     if (!name) return CreateNamedPipeW( NULL, dwOpenMode, dwPipeMode, nMaxInstances,
1164                                         nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
1165
1166     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1167     {
1168         SetLastError( ERROR_FILENAME_EXCED_RANGE );
1169         return INVALID_HANDLE_VALUE;
1170     }
1171     return CreateNamedPipeW( buffer, dwOpenMode, dwPipeMode, nMaxInstances,
1172                              nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
1173 }
1174
1175
1176 /***********************************************************************
1177  *           CreateNamedPipeW   (KERNEL32.@)
1178  */
1179 HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
1180                                 DWORD dwPipeMode, DWORD nMaxInstances,
1181                                 DWORD nOutBufferSize, DWORD nInBufferSize,
1182                                 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES sa )
1183 {
1184     HANDLE handle;
1185     UNICODE_STRING nt_name;
1186     OBJECT_ATTRIBUTES attr;
1187     DWORD access, options;
1188     BOOLEAN pipe_type, read_mode, non_block;
1189     NTSTATUS status;
1190     IO_STATUS_BLOCK iosb;
1191     LARGE_INTEGER timeout;
1192
1193     TRACE("(%s, %#08x, %#08x, %d, %d, %d, %d, %p)\n",
1194           debugstr_w(name), dwOpenMode, dwPipeMode, nMaxInstances,
1195           nOutBufferSize, nInBufferSize, nDefaultTimeOut, sa );
1196
1197     if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
1198     {
1199         SetLastError( ERROR_PATH_NOT_FOUND );
1200         return INVALID_HANDLE_VALUE;
1201     }
1202     if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) )
1203     {
1204         SetLastError( ERROR_FILENAME_EXCED_RANGE );
1205         RtlFreeUnicodeString( &nt_name );
1206         return INVALID_HANDLE_VALUE;
1207     }
1208
1209     attr.Length                   = sizeof(attr);
1210     attr.RootDirectory            = 0;
1211     attr.ObjectName               = &nt_name;
1212     attr.Attributes               = OBJ_CASE_INSENSITIVE |
1213                                     ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
1214     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
1215     attr.SecurityQualityOfService = NULL;
1216
1217     switch(dwOpenMode & 3)
1218     {
1219     case PIPE_ACCESS_INBOUND:
1220         options = FILE_PIPE_INBOUND;
1221         access  = GENERIC_READ;
1222         break;
1223     case PIPE_ACCESS_OUTBOUND:
1224         options = FILE_PIPE_OUTBOUND;
1225         access  = GENERIC_WRITE;
1226         break;
1227     case PIPE_ACCESS_DUPLEX:
1228         options = FILE_PIPE_FULL_DUPLEX;
1229         access  = GENERIC_READ | GENERIC_WRITE;
1230         break;
1231     default:
1232         SetLastError( ERROR_INVALID_PARAMETER );
1233         return INVALID_HANDLE_VALUE;
1234     }
1235     access |= SYNCHRONIZE;
1236     if (dwOpenMode & FILE_FLAG_WRITE_THROUGH) options |= FILE_WRITE_THROUGH;
1237     if (!(dwOpenMode & FILE_FLAG_OVERLAPPED)) options |= FILE_SYNCHRONOUS_IO_ALERT;
1238     pipe_type = (dwPipeMode & PIPE_TYPE_MESSAGE) ? TRUE : FALSE;
1239     read_mode = (dwPipeMode & PIPE_READMODE_MESSAGE) ? TRUE : FALSE;
1240     non_block = (dwPipeMode & PIPE_NOWAIT) ? TRUE : FALSE;
1241     if (nMaxInstances >= PIPE_UNLIMITED_INSTANCES) nMaxInstances = ~0U;
1242
1243     timeout.QuadPart = (ULONGLONG)nDefaultTimeOut * -10000;
1244
1245     SetLastError(0);
1246
1247     status = NtCreateNamedPipeFile(&handle, access, &attr, &iosb, 0,
1248                                    FILE_OVERWRITE_IF, options, pipe_type,
1249                                    read_mode, non_block, nMaxInstances,
1250                                    nInBufferSize, nOutBufferSize, &timeout);
1251
1252     RtlFreeUnicodeString( &nt_name );
1253     if (status)
1254     {
1255         handle = INVALID_HANDLE_VALUE;
1256         SetLastError( RtlNtStatusToDosError(status) );
1257     }
1258     return handle;
1259 }
1260
1261
1262 /***********************************************************************
1263  *           PeekNamedPipe   (KERNEL32.@)
1264  */
1265 BOOL WINAPI PeekNamedPipe( HANDLE hPipe, LPVOID lpvBuffer, DWORD cbBuffer,
1266                            LPDWORD lpcbRead, LPDWORD lpcbAvail, LPDWORD lpcbMessage )
1267 {
1268     FILE_PIPE_PEEK_BUFFER local_buffer;
1269     FILE_PIPE_PEEK_BUFFER *buffer = &local_buffer;
1270     IO_STATUS_BLOCK io;
1271     NTSTATUS status;
1272
1273     if (cbBuffer && !(buffer = HeapAlloc( GetProcessHeap(), 0,
1274                                           FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[cbBuffer] ))))
1275     {
1276         SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1277         return FALSE;
1278     }
1279
1280     status = NtFsControlFile( hPipe, 0, NULL, NULL, &io, FSCTL_PIPE_PEEK, NULL, 0,
1281                               buffer, FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[cbBuffer] ) );
1282     if (!status)
1283     {
1284         ULONG read_size = io.Information - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1285         if (lpcbAvail) *lpcbAvail = buffer->ReadDataAvailable;
1286         if (lpcbRead) *lpcbRead = read_size;
1287         if (lpcbMessage) *lpcbMessage = 0;  /* FIXME */
1288         if (lpvBuffer) memcpy( lpvBuffer, buffer->Data, read_size );
1289     }
1290     else SetLastError( RtlNtStatusToDosError(status) );
1291
1292     if (buffer != &local_buffer) HeapFree( GetProcessHeap(), 0, buffer );
1293     return !status;
1294 }
1295
1296 /***********************************************************************
1297  *           WaitNamedPipeA   (KERNEL32.@)
1298  */
1299 BOOL WINAPI WaitNamedPipeA (LPCSTR name, DWORD nTimeOut)
1300 {
1301     WCHAR buffer[MAX_PATH];
1302
1303     if (!name) return WaitNamedPipeW( NULL, nTimeOut );
1304
1305     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1306     {
1307         SetLastError( ERROR_FILENAME_EXCED_RANGE );
1308         return 0;
1309     }
1310     return WaitNamedPipeW( buffer, nTimeOut );
1311 }
1312
1313
1314 /***********************************************************************
1315  *           WaitNamedPipeW   (KERNEL32.@)
1316  *
1317  *  Waits for a named pipe instance to become available
1318  *
1319  *  PARAMS
1320  *   name     [I] Pointer to a named pipe name to wait for
1321  *   nTimeOut [I] How long to wait in ms
1322  *
1323  *  RETURNS
1324  *   TRUE: Success, named pipe can be opened with CreateFile
1325  *   FALSE: Failure, GetLastError can be called for further details
1326  */
1327 BOOL WINAPI WaitNamedPipeW (LPCWSTR name, DWORD nTimeOut)
1328 {
1329     static const WCHAR leadin[] = {'\\','?','?','\\','P','I','P','E','\\'};
1330     NTSTATUS status;
1331     UNICODE_STRING nt_name, pipe_dev_name;
1332     FILE_PIPE_WAIT_FOR_BUFFER *pipe_wait;
1333     IO_STATUS_BLOCK iosb;
1334     OBJECT_ATTRIBUTES attr;
1335     ULONG sz_pipe_wait;
1336     HANDLE pipe_dev;
1337
1338     TRACE("%s 0x%08x\n",debugstr_w(name),nTimeOut);
1339
1340     if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
1341         return FALSE;
1342
1343     if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) ||
1344         nt_name.Length < sizeof(leadin) ||
1345         strncmpiW( nt_name.Buffer, leadin, sizeof(leadin)/sizeof(WCHAR) != 0))
1346     {
1347         RtlFreeUnicodeString( &nt_name );
1348         SetLastError( ERROR_PATH_NOT_FOUND );
1349         return FALSE;
1350     }
1351
1352     sz_pipe_wait = sizeof(*pipe_wait) + nt_name.Length - sizeof(leadin) - sizeof(WCHAR);
1353     if (!(pipe_wait = HeapAlloc( GetProcessHeap(), 0,  sz_pipe_wait)))
1354     {
1355         RtlFreeUnicodeString( &nt_name );
1356         SetLastError( ERROR_OUTOFMEMORY );
1357         return FALSE;
1358     }
1359
1360     pipe_dev_name.Buffer = nt_name.Buffer;
1361     pipe_dev_name.Length = sizeof(leadin);
1362     pipe_dev_name.MaximumLength = sizeof(leadin);
1363     InitializeObjectAttributes(&attr,&pipe_dev_name, OBJ_CASE_INSENSITIVE, NULL, NULL);
1364     status = NtOpenFile( &pipe_dev, FILE_READ_ATTRIBUTES, &attr,
1365                          &iosb, FILE_SHARE_READ | FILE_SHARE_WRITE,
1366                          FILE_SYNCHRONOUS_IO_NONALERT);
1367     if (status != ERROR_SUCCESS)
1368     {
1369         SetLastError( ERROR_PATH_NOT_FOUND );
1370         return FALSE;
1371     }
1372
1373     pipe_wait->TimeoutSpecified = !(nTimeOut == NMPWAIT_USE_DEFAULT_WAIT);
1374     if (nTimeOut == NMPWAIT_WAIT_FOREVER)
1375         pipe_wait->Timeout.QuadPart = ((ULONGLONG)0x7fffffff << 32) | 0xffffffff;
1376     else
1377         pipe_wait->Timeout.QuadPart = (ULONGLONG)nTimeOut * -10000;
1378     pipe_wait->NameLength = nt_name.Length - sizeof(leadin);
1379     memcpy(pipe_wait->Name, nt_name.Buffer + sizeof(leadin)/sizeof(WCHAR),
1380            pipe_wait->NameLength);
1381     RtlFreeUnicodeString( &nt_name );
1382
1383     status = NtFsControlFile( pipe_dev, NULL, NULL, NULL, &iosb, FSCTL_PIPE_WAIT,
1384                               pipe_wait, sz_pipe_wait, NULL, 0 );
1385
1386     HeapFree( GetProcessHeap(), 0, pipe_wait );
1387     NtClose( pipe_dev );
1388
1389     if(status != STATUS_SUCCESS)
1390     {
1391         SetLastError(RtlNtStatusToDosError(status));
1392         return FALSE;
1393     }
1394     else
1395         return TRUE;
1396 }
1397
1398
1399 /***********************************************************************
1400  *           ConnectNamedPipe   (KERNEL32.@)
1401  *
1402  *  Connects to a named pipe
1403  *
1404  *  Parameters
1405  *  hPipe: A handle to a named pipe returned by CreateNamedPipe
1406  *  overlapped: Optional OVERLAPPED struct
1407  *
1408  *  Return values
1409  *  TRUE: Success
1410  *  FALSE: Failure, GetLastError can be called for further details
1411  */
1412 BOOL WINAPI ConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED overlapped)
1413 {
1414     NTSTATUS status;
1415     IO_STATUS_BLOCK status_block;
1416     LPVOID   cvalue = NULL;
1417
1418     TRACE("(%p,%p)\n", hPipe, overlapped);
1419
1420     if(overlapped)
1421     {
1422         overlapped->Internal = STATUS_PENDING;
1423         overlapped->InternalHigh = 0;
1424         if (((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped;
1425     }
1426
1427     status = NtFsControlFile(hPipe, overlapped ? overlapped->hEvent : NULL, NULL, cvalue,
1428                              overlapped ? (IO_STATUS_BLOCK *)overlapped : &status_block,
1429                              FSCTL_PIPE_LISTEN, NULL, 0, NULL, 0);
1430
1431     if (status == STATUS_SUCCESS) return TRUE;
1432     SetLastError( RtlNtStatusToDosError(status) );
1433     return FALSE;
1434 }
1435
1436 /***********************************************************************
1437  *           DisconnectNamedPipe   (KERNEL32.@)
1438  *
1439  *  Disconnects from a named pipe
1440  *
1441  *  Parameters
1442  *  hPipe: A handle to a named pipe returned by CreateNamedPipe
1443  *
1444  *  Return values
1445  *  TRUE: Success
1446  *  FALSE: Failure, GetLastError can be called for further details
1447  */
1448 BOOL WINAPI DisconnectNamedPipe(HANDLE hPipe)
1449 {
1450     NTSTATUS status;
1451     IO_STATUS_BLOCK io_block;
1452
1453     TRACE("(%p)\n",hPipe);
1454
1455     status = NtFsControlFile(hPipe, 0, NULL, NULL, &io_block, FSCTL_PIPE_DISCONNECT,
1456                              NULL, 0, NULL, 0);
1457     if (status == STATUS_SUCCESS) return TRUE;
1458     SetLastError( RtlNtStatusToDosError(status) );
1459     return FALSE;
1460 }
1461
1462 /***********************************************************************
1463  *           TransactNamedPipe   (KERNEL32.@)
1464  *
1465  * BUGS
1466  *  should be done as a single operation in the wineserver or kernel
1467  */
1468 BOOL WINAPI TransactNamedPipe(
1469     HANDLE handle, LPVOID write_buf, DWORD write_size, LPVOID read_buf,
1470     DWORD read_size, LPDWORD bytes_read, LPOVERLAPPED overlapped)
1471 {
1472     BOOL r;
1473     DWORD count;
1474
1475     TRACE("%p %p %d %p %d %p %p\n",
1476           handle, write_buf, write_size, read_buf,
1477           read_size, bytes_read, overlapped);
1478
1479     if (overlapped)
1480     {
1481         FIXME("Doesn't support overlapped operation as yet\n");
1482         return FALSE;
1483     }
1484
1485     r = WriteFile(handle, write_buf, write_size, &count, NULL);
1486     if (r)
1487         r = ReadFile(handle, read_buf, read_size, bytes_read, NULL);
1488
1489     return r;
1490 }
1491
1492 /***********************************************************************
1493  *           GetNamedPipeInfo   (KERNEL32.@)
1494  */
1495 BOOL WINAPI GetNamedPipeInfo(
1496     HANDLE hNamedPipe, LPDWORD lpFlags, LPDWORD lpOutputBufferSize,
1497     LPDWORD lpInputBufferSize, LPDWORD lpMaxInstances)
1498 {
1499     FILE_PIPE_LOCAL_INFORMATION fpli;
1500     IO_STATUS_BLOCK iosb;
1501     NTSTATUS status;
1502
1503     status = NtQueryInformationFile(hNamedPipe, &iosb, &fpli, sizeof(fpli),
1504                                     FilePipeLocalInformation);
1505     if (status)
1506     {
1507         SetLastError( RtlNtStatusToDosError(status) );
1508         return FALSE;
1509     }
1510
1511     if (lpFlags)
1512     {
1513         *lpFlags = (fpli.NamedPipeEnd & FILE_PIPE_SERVER_END) ?
1514             PIPE_SERVER_END : PIPE_CLIENT_END;
1515         *lpFlags |= (fpli.NamedPipeType & FILE_PIPE_TYPE_MESSAGE) ?
1516             PIPE_TYPE_MESSAGE : PIPE_TYPE_BYTE;
1517     }
1518
1519     if (lpOutputBufferSize) *lpOutputBufferSize = fpli.OutboundQuota;
1520     if (lpInputBufferSize) *lpInputBufferSize = fpli.InboundQuota;
1521     if (lpMaxInstances) *lpMaxInstances = fpli.MaximumInstances;
1522
1523     return TRUE;
1524 }
1525
1526 /***********************************************************************
1527  *           GetNamedPipeHandleStateA  (KERNEL32.@)
1528  */
1529 BOOL WINAPI GetNamedPipeHandleStateA(
1530     HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
1531     LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
1532     LPSTR lpUsername, DWORD nUsernameMaxSize)
1533 {
1534     FIXME("%p %p %p %p %p %p %d\n",
1535           hNamedPipe, lpState, lpCurInstances,
1536           lpMaxCollectionCount, lpCollectDataTimeout,
1537           lpUsername, nUsernameMaxSize);
1538
1539     return FALSE;
1540 }
1541
1542 /***********************************************************************
1543  *           GetNamedPipeHandleStateW  (KERNEL32.@)
1544  */
1545 BOOL WINAPI GetNamedPipeHandleStateW(
1546     HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
1547     LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
1548     LPWSTR lpUsername, DWORD nUsernameMaxSize)
1549 {
1550     FIXME("%p %p %p %p %p %p %d\n",
1551           hNamedPipe, lpState, lpCurInstances,
1552           lpMaxCollectionCount, lpCollectDataTimeout,
1553           lpUsername, nUsernameMaxSize);
1554
1555     return FALSE;
1556 }
1557
1558 /***********************************************************************
1559  *           SetNamedPipeHandleState  (KERNEL32.@)
1560  */
1561 BOOL WINAPI SetNamedPipeHandleState(
1562     HANDLE hNamedPipe, LPDWORD lpMode, LPDWORD lpMaxCollectionCount,
1563     LPDWORD lpCollectDataTimeout)
1564 {
1565     /* should be a fixme, but this function is called a lot by the RPC
1566      * runtime, and it slows down InstallShield a fair bit. */
1567     WARN("stub: %p %p/%d %p %p\n",
1568           hNamedPipe, lpMode, lpMode ? *lpMode : 0, lpMaxCollectionCount, lpCollectDataTimeout);
1569     return FALSE;
1570 }
1571
1572 /***********************************************************************
1573  *           CallNamedPipeA  (KERNEL32.@)
1574  */
1575 BOOL WINAPI CallNamedPipeA(
1576     LPCSTR lpNamedPipeName, LPVOID lpInput, DWORD dwInputSize,
1577     LPVOID lpOutput, DWORD dwOutputSize,
1578     LPDWORD lpBytesRead, DWORD nTimeout)
1579 {
1580     DWORD len;
1581     LPWSTR str = NULL;
1582     BOOL ret;
1583
1584     TRACE("%s %p %d %p %d %p %d\n",
1585            debugstr_a(lpNamedPipeName), lpInput, dwInputSize,
1586            lpOutput, dwOutputSize, lpBytesRead, nTimeout);
1587
1588     if( lpNamedPipeName )
1589     {
1590         len = MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, NULL, 0 );
1591         str = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
1592         MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, str, len );
1593     }
1594     ret = CallNamedPipeW( str, lpInput, dwInputSize, lpOutput,
1595                           dwOutputSize, lpBytesRead, nTimeout );
1596     if( lpNamedPipeName )
1597         HeapFree( GetProcessHeap(), 0, str );
1598
1599     return ret;
1600 }
1601
1602 /***********************************************************************
1603  *           CallNamedPipeW  (KERNEL32.@)
1604  */
1605 BOOL WINAPI CallNamedPipeW(
1606     LPCWSTR lpNamedPipeName, LPVOID lpInput, DWORD lpInputSize,
1607     LPVOID lpOutput, DWORD lpOutputSize,
1608     LPDWORD lpBytesRead, DWORD nTimeout)
1609 {
1610     HANDLE pipe;
1611     BOOL ret;
1612     DWORD mode;
1613
1614     TRACE("%s %p %d %p %d %p %d\n",
1615           debugstr_w(lpNamedPipeName), lpInput, lpInputSize,
1616           lpOutput, lpOutputSize, lpBytesRead, nTimeout);
1617
1618     pipe = CreateFileW(lpNamedPipeName, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
1619     if (pipe == INVALID_HANDLE_VALUE)
1620     {
1621         ret = WaitNamedPipeW(lpNamedPipeName, nTimeout);
1622         if (!ret)
1623             return FALSE;
1624         pipe = CreateFileW(lpNamedPipeName, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
1625         if (pipe == INVALID_HANDLE_VALUE)
1626             return FALSE;
1627     }
1628
1629     mode = PIPE_READMODE_MESSAGE;
1630     ret = SetNamedPipeHandleState(pipe, &mode, NULL, NULL);
1631
1632     /* Currently SetNamedPipeHandleState() is a stub returning FALSE */
1633     if (ret) FIXME("Now that SetNamedPipeHandleState() is more than a stub, please update CallNamedPipeW\n");
1634     /*
1635     if (!ret)
1636     {
1637         CloseHandle(pipe);
1638         return FALSE;
1639     }*/
1640
1641     ret = TransactNamedPipe(pipe, lpInput, lpInputSize, lpOutput, lpOutputSize, lpBytesRead, NULL);
1642     CloseHandle(pipe);
1643     if (!ret)
1644         return FALSE;
1645
1646     return TRUE;
1647 }
1648
1649 /******************************************************************
1650  *              CreatePipe (KERNEL32.@)
1651  *
1652  */
1653 BOOL WINAPI CreatePipe( PHANDLE hReadPipe, PHANDLE hWritePipe,
1654                         LPSECURITY_ATTRIBUTES sa, DWORD size )
1655 {
1656     static unsigned     index /* = 0 */;
1657     WCHAR               name[64];
1658     HANDLE              hr, hw;
1659     unsigned            in_index = index;
1660     UNICODE_STRING      nt_name;
1661     OBJECT_ATTRIBUTES   attr;
1662     NTSTATUS            status;
1663     IO_STATUS_BLOCK     iosb;
1664     LARGE_INTEGER       timeout;
1665
1666     *hReadPipe = *hWritePipe = INVALID_HANDLE_VALUE;
1667
1668     attr.Length                   = sizeof(attr);
1669     attr.RootDirectory            = 0;
1670     attr.ObjectName               = &nt_name;
1671     attr.Attributes               = OBJ_CASE_INSENSITIVE |
1672                                     ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
1673     attr.SecurityDescriptor       = sa ? sa->lpSecurityDescriptor : NULL;
1674     attr.SecurityQualityOfService = NULL;
1675
1676     timeout.QuadPart = (ULONGLONG)NMPWAIT_USE_DEFAULT_WAIT * -10000;
1677     /* generate a unique pipe name (system wide) */
1678     do
1679     {
1680         static const WCHAR nameFmt[] = { '\\','?','?','\\','p','i','p','e',
1681          '\\','W','i','n','3','2','.','P','i','p','e','s','.','%','0','8','l',
1682          'u','.','%','0','8','u','\0' };
1683
1684         snprintfW(name, sizeof(name) / sizeof(name[0]), nameFmt,
1685                   GetCurrentProcessId(), ++index);
1686         RtlInitUnicodeString(&nt_name, name);
1687         status = NtCreateNamedPipeFile(&hr, GENERIC_READ | SYNCHRONIZE, &attr, &iosb,
1688                                        0, FILE_OVERWRITE_IF,
1689                                        FILE_SYNCHRONOUS_IO_ALERT | FILE_PIPE_INBOUND,
1690                                        FALSE, FALSE, FALSE,
1691                                        1, size, size, &timeout);
1692         if (status)
1693         {
1694             SetLastError( RtlNtStatusToDosError(status) );
1695             hr = INVALID_HANDLE_VALUE;
1696         }
1697     } while (hr == INVALID_HANDLE_VALUE && index != in_index);
1698     /* from completion sakeness, I think system resources might be exhausted before this happens !! */
1699     if (hr == INVALID_HANDLE_VALUE) return FALSE;
1700
1701     status = NtOpenFile(&hw, GENERIC_WRITE | SYNCHRONIZE, &attr, &iosb, 0,
1702                         FILE_SYNCHRONOUS_IO_ALERT | FILE_NON_DIRECTORY_FILE);
1703
1704     if (status)
1705     {
1706         SetLastError( RtlNtStatusToDosError(status) );
1707         NtClose(hr);
1708         return FALSE;
1709     }
1710
1711     *hReadPipe = hr;
1712     *hWritePipe = hw;
1713     return TRUE;
1714 }
1715
1716
1717 /******************************************************************************
1718  * CreateMailslotA [KERNEL32.@]
1719  *
1720  * See CreateMailslotW.
1721  */
1722 HANDLE WINAPI CreateMailslotA( LPCSTR lpName, DWORD nMaxMessageSize,
1723                                DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
1724 {
1725     DWORD len;
1726     HANDLE handle;
1727     LPWSTR name = NULL;
1728
1729     TRACE("%s %d %d %p\n", debugstr_a(lpName),
1730           nMaxMessageSize, lReadTimeout, sa);
1731
1732     if( lpName )
1733     {
1734         len = MultiByteToWideChar( CP_ACP, 0, lpName, -1, NULL, 0 );
1735         name = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
1736         MultiByteToWideChar( CP_ACP, 0, lpName, -1, name, len );
1737     }
1738
1739     handle = CreateMailslotW( name, nMaxMessageSize, lReadTimeout, sa );
1740
1741     HeapFree( GetProcessHeap(), 0, name );
1742
1743     return handle;
1744 }
1745
1746
1747 /******************************************************************************
1748  * CreateMailslotW [KERNEL32.@]
1749  *
1750  * Create a mailslot with specified name.
1751  *
1752  * PARAMS
1753  *    lpName          [I] Pointer to string for mailslot name
1754  *    nMaxMessageSize [I] Maximum message size
1755  *    lReadTimeout    [I] Milliseconds before read time-out
1756  *    sa              [I] Pointer to security structure
1757  *
1758  * RETURNS
1759  *    Success: Handle to mailslot
1760  *    Failure: INVALID_HANDLE_VALUE
1761  */
1762 HANDLE WINAPI CreateMailslotW( LPCWSTR lpName, DWORD nMaxMessageSize,
1763                                DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
1764 {
1765     HANDLE handle = INVALID_HANDLE_VALUE;
1766     OBJECT_ATTRIBUTES attr;
1767     UNICODE_STRING nameW;
1768     LARGE_INTEGER timeout;
1769     IO_STATUS_BLOCK iosb;
1770     NTSTATUS status;
1771
1772     TRACE("%s %d %d %p\n", debugstr_w(lpName),
1773           nMaxMessageSize, lReadTimeout, sa);
1774
1775     if (!RtlDosPathNameToNtPathName_U( lpName, &nameW, NULL, NULL ))
1776     {
1777         SetLastError( ERROR_PATH_NOT_FOUND );
1778         return INVALID_HANDLE_VALUE;
1779     }
1780
1781     if (nameW.Length >= MAX_PATH * sizeof(WCHAR) )
1782     {
1783         SetLastError( ERROR_FILENAME_EXCED_RANGE );
1784         RtlFreeUnicodeString( &nameW );
1785         return INVALID_HANDLE_VALUE;
1786     }
1787
1788     attr.Length = sizeof(attr);
1789     attr.RootDirectory = 0;
1790     attr.Attributes = OBJ_CASE_INSENSITIVE;
1791     attr.ObjectName = &nameW;
1792     attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
1793     attr.SecurityQualityOfService = NULL;
1794
1795     if (lReadTimeout != MAILSLOT_WAIT_FOREVER)
1796         timeout.QuadPart = (ULONGLONG) lReadTimeout * -10000;
1797     else
1798         timeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
1799
1800     status = NtCreateMailslotFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr,
1801                                    &iosb, 0, 0, nMaxMessageSize, &timeout );
1802     if (status)
1803     {
1804         SetLastError( RtlNtStatusToDosError(status) );
1805         handle = INVALID_HANDLE_VALUE;
1806     }
1807
1808     RtlFreeUnicodeString( &nameW );
1809     return handle;
1810 }
1811
1812
1813 /******************************************************************************
1814  * GetMailslotInfo [KERNEL32.@]
1815  *
1816  * Retrieve information about a mailslot.
1817  *
1818  * PARAMS
1819  *    hMailslot        [I] Mailslot handle
1820  *    lpMaxMessageSize [O] Address of maximum message size
1821  *    lpNextSize       [O] Address of size of next message
1822  *    lpMessageCount   [O] Address of number of messages
1823  *    lpReadTimeout    [O] Address of read time-out
1824  *
1825  * RETURNS
1826  *    Success: TRUE
1827  *    Failure: FALSE
1828  */
1829 BOOL WINAPI GetMailslotInfo( HANDLE hMailslot, LPDWORD lpMaxMessageSize,
1830                                LPDWORD lpNextSize, LPDWORD lpMessageCount,
1831                                LPDWORD lpReadTimeout )
1832 {
1833     FILE_MAILSLOT_QUERY_INFORMATION info;
1834     IO_STATUS_BLOCK iosb;
1835     NTSTATUS status;
1836
1837     TRACE("%p %p %p %p %p\n",hMailslot, lpMaxMessageSize,
1838           lpNextSize, lpMessageCount, lpReadTimeout);
1839
1840     status = NtQueryInformationFile( hMailslot, &iosb, &info, sizeof info,
1841                                      FileMailslotQueryInformation );
1842
1843     if( status != STATUS_SUCCESS )
1844     {
1845         SetLastError( RtlNtStatusToDosError(status) );
1846         return FALSE;
1847     }
1848
1849     if( lpMaxMessageSize )
1850         *lpMaxMessageSize = info.MaximumMessageSize;
1851     if( lpNextSize )
1852         *lpNextSize = info.NextMessageSize;
1853     if( lpMessageCount )
1854         *lpMessageCount = info.MessagesAvailable;
1855     if( lpReadTimeout )
1856     {
1857         if (info.ReadTimeout.QuadPart == (((LONGLONG)0x7fffffff << 32) | 0xffffffff))
1858             *lpReadTimeout = MAILSLOT_WAIT_FOREVER;
1859         else
1860             *lpReadTimeout = info.ReadTimeout.QuadPart / -10000;
1861     }
1862     return TRUE;
1863 }
1864
1865
1866 /******************************************************************************
1867  * SetMailslotInfo [KERNEL32.@]
1868  *
1869  * Set the read timeout of a mailslot.
1870  *
1871  * PARAMS
1872  *  hMailslot     [I] Mailslot handle
1873  *  dwReadTimeout [I] Timeout in milliseconds.
1874  *
1875  * RETURNS
1876  *    Success: TRUE
1877  *    Failure: FALSE
1878  */
1879 BOOL WINAPI SetMailslotInfo( HANDLE hMailslot, DWORD dwReadTimeout)
1880 {
1881     FILE_MAILSLOT_SET_INFORMATION info;
1882     IO_STATUS_BLOCK iosb;
1883     NTSTATUS status;
1884
1885     TRACE("%p %d\n", hMailslot, dwReadTimeout);
1886
1887     if (dwReadTimeout != MAILSLOT_WAIT_FOREVER)
1888         info.ReadTimeout.QuadPart = (ULONGLONG)dwReadTimeout * -10000;
1889     else
1890         info.ReadTimeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
1891     status = NtSetInformationFile( hMailslot, &iosb, &info, sizeof info,
1892                                    FileMailslotSetInformation );
1893     if( status != STATUS_SUCCESS )
1894     {
1895         SetLastError( RtlNtStatusToDosError(status) );
1896         return FALSE;
1897     }
1898     return TRUE;
1899 }
1900
1901
1902 /******************************************************************************
1903  *              CreateIoCompletionPort (KERNEL32.@)
1904  */
1905 HANDLE WINAPI CreateIoCompletionPort(HANDLE hFileHandle, HANDLE hExistingCompletionPort,
1906                                      ULONG_PTR CompletionKey, DWORD dwNumberOfConcurrentThreads)
1907 {
1908     NTSTATUS status;
1909     HANDLE ret = 0;
1910
1911     TRACE("(%p, %p, %08lx, %08x)\n",
1912           hFileHandle, hExistingCompletionPort, CompletionKey, dwNumberOfConcurrentThreads);
1913
1914     if (hExistingCompletionPort && hFileHandle == INVALID_HANDLE_VALUE)
1915     {
1916         SetLastError( ERROR_INVALID_PARAMETER);
1917         return NULL;
1918     }
1919
1920     if (hExistingCompletionPort)
1921         ret = hExistingCompletionPort;
1922     else
1923     {
1924         status = NtCreateIoCompletion( &ret, IO_COMPLETION_ALL_ACCESS, NULL, dwNumberOfConcurrentThreads );
1925         if (status != STATUS_SUCCESS) goto fail;
1926     }
1927
1928     if (hFileHandle != INVALID_HANDLE_VALUE)
1929     {
1930         FILE_COMPLETION_INFORMATION info;
1931         IO_STATUS_BLOCK iosb;
1932
1933         info.CompletionPort = ret;
1934         info.CompletionKey = CompletionKey;
1935         status = NtSetInformationFile( hFileHandle, &iosb, &info, sizeof(info), FileCompletionInformation );
1936         if (status != STATUS_SUCCESS) goto fail;
1937     }
1938
1939     return ret;
1940
1941 fail:
1942     if (ret && !hExistingCompletionPort)
1943         CloseHandle( ret );
1944     SetLastError( RtlNtStatusToDosError(status) );
1945     return 0;
1946 }
1947
1948 /******************************************************************************
1949  *              GetQueuedCompletionStatus (KERNEL32.@)
1950  */
1951 BOOL WINAPI GetQueuedCompletionStatus( HANDLE CompletionPort, LPDWORD lpNumberOfBytesTransferred,
1952                                        PULONG_PTR pCompletionKey, LPOVERLAPPED *lpOverlapped,
1953                                        DWORD dwMilliseconds )
1954 {
1955     NTSTATUS status;
1956     IO_STATUS_BLOCK iosb;
1957     LARGE_INTEGER wait_time;
1958
1959     TRACE("(%p,%p,%p,%p,%d)\n",
1960           CompletionPort,lpNumberOfBytesTransferred,pCompletionKey,lpOverlapped,dwMilliseconds);
1961
1962     *lpOverlapped = NULL;
1963
1964     status = NtRemoveIoCompletion( CompletionPort, pCompletionKey, (PULONG_PTR)lpOverlapped,
1965                                    &iosb, get_nt_timeout( &wait_time, dwMilliseconds ) );
1966     if (status == STATUS_SUCCESS)
1967     {
1968         *lpNumberOfBytesTransferred = iosb.Information;
1969         return TRUE;
1970     }
1971
1972     SetLastError( RtlNtStatusToDosError(status) );
1973     return FALSE;
1974 }
1975
1976
1977 /******************************************************************************
1978  *              PostQueuedCompletionStatus (KERNEL32.@)
1979  */
1980 BOOL WINAPI PostQueuedCompletionStatus( HANDLE CompletionPort, DWORD dwNumberOfBytes,
1981                                         ULONG_PTR dwCompletionKey, LPOVERLAPPED lpOverlapped)
1982 {
1983     NTSTATUS status;
1984
1985     TRACE("%p %d %08lx %p\n", CompletionPort, dwNumberOfBytes, dwCompletionKey, lpOverlapped );
1986
1987     status = NtSetIoCompletion( CompletionPort, dwCompletionKey, (ULONG_PTR)lpOverlapped,
1988                                 STATUS_SUCCESS, dwNumberOfBytes );
1989
1990     if (status == STATUS_SUCCESS) return TRUE;
1991     SetLastError( RtlNtStatusToDosError(status) );
1992     return FALSE;
1993 }
1994
1995 /******************************************************************************
1996  *              BindIoCompletionCallback (KERNEL32.@)
1997  */
1998 BOOL WINAPI BindIoCompletionCallback( HANDLE FileHandle, LPOVERLAPPED_COMPLETION_ROUTINE Function, ULONG Flags)
1999 {
2000     NTSTATUS status;
2001
2002     TRACE("(%p, %p, %d)\n", FileHandle, Function, Flags);
2003
2004     status = RtlSetIoCompletionCallback( FileHandle, (PRTL_OVERLAPPED_COMPLETION_ROUTINE)Function, Flags );
2005     if (status == STATUS_SUCCESS) return TRUE;
2006     SetLastError( RtlNtStatusToDosError(status) );
2007     return FALSE;
2008 }
2009
2010 /******************************************************************************
2011  *              CreateJobObjectW (KERNEL32.@)
2012  */
2013 HANDLE WINAPI CreateJobObjectW( LPSECURITY_ATTRIBUTES attr, LPCWSTR name )
2014 {
2015     FIXME("%p %s\n", attr, debugstr_w(name) );
2016     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2017     return 0;
2018 }
2019
2020 /******************************************************************************
2021  *              CreateJobObjectA (KERNEL32.@)
2022  */
2023 HANDLE WINAPI CreateJobObjectA( LPSECURITY_ATTRIBUTES attr, LPCSTR name )
2024 {
2025     LPWSTR str = NULL;
2026     UINT len;
2027     HANDLE r;
2028
2029     TRACE("%p %s\n", attr, debugstr_a(name) );
2030
2031     if( name )
2032     {
2033         len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2034         str = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
2035         if( !str )
2036         {
2037             SetLastError( ERROR_OUTOFMEMORY );
2038             return 0;
2039         }
2040         len = MultiByteToWideChar( CP_ACP, 0, name, -1, str, len );
2041     }
2042
2043     r = CreateJobObjectW( attr, str );
2044
2045     HeapFree( GetProcessHeap(), 0, str );
2046
2047     return r;
2048 }
2049
2050 /******************************************************************************
2051  *              AssignProcessToJobObject (KERNEL32.@)
2052  */
2053 BOOL WINAPI AssignProcessToJobObject( HANDLE hJob, HANDLE hProcess )
2054 {
2055     FIXME("%p %p\n", hJob, hProcess);
2056     return TRUE;
2057 }
2058
2059 #ifdef __i386__
2060
2061 /***********************************************************************
2062  *              InterlockedCompareExchange (KERNEL32.@)
2063  */
2064 /* LONG WINAPI InterlockedCompareExchange( PLONG dest, LONG xchg, LONG compare ); */
2065 __ASM_GLOBAL_FUNC(InterlockedCompareExchange,
2066                   "movl 12(%esp),%eax\n\t"
2067                   "movl 8(%esp),%ecx\n\t"
2068                   "movl 4(%esp),%edx\n\t"
2069                   "lock; cmpxchgl %ecx,(%edx)\n\t"
2070                   "ret $12")
2071
2072 /***********************************************************************
2073  *              InterlockedExchange (KERNEL32.@)
2074  */
2075 /* LONG WINAPI InterlockedExchange( PLONG dest, LONG val ); */
2076 __ASM_GLOBAL_FUNC(InterlockedExchange,
2077                   "movl 8(%esp),%eax\n\t"
2078                   "movl 4(%esp),%edx\n\t"
2079                   "lock; xchgl %eax,(%edx)\n\t"
2080                   "ret $8")
2081
2082 /***********************************************************************
2083  *              InterlockedExchangeAdd (KERNEL32.@)
2084  */
2085 /* LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr ); */
2086 __ASM_GLOBAL_FUNC(InterlockedExchangeAdd,
2087                   "movl 8(%esp),%eax\n\t"
2088                   "movl 4(%esp),%edx\n\t"
2089                   "lock; xaddl %eax,(%edx)\n\t"
2090                   "ret $8")
2091
2092 /***********************************************************************
2093  *              InterlockedIncrement (KERNEL32.@)
2094  */
2095 /* LONG WINAPI InterlockedIncrement( PLONG dest ); */
2096 __ASM_GLOBAL_FUNC(InterlockedIncrement,
2097                   "movl 4(%esp),%edx\n\t"
2098                   "movl $1,%eax\n\t"
2099                   "lock; xaddl %eax,(%edx)\n\t"
2100                   "incl %eax\n\t"
2101                   "ret $4")
2102
2103 /***********************************************************************
2104  *              InterlockedDecrement (KERNEL32.@)
2105  */
2106 __ASM_GLOBAL_FUNC(InterlockedDecrement,
2107                   "movl 4(%esp),%edx\n\t"
2108                   "movl $-1,%eax\n\t"
2109                   "lock; xaddl %eax,(%edx)\n\t"
2110                   "decl %eax\n\t"
2111                   "ret $4")
2112
2113 #else  /* __i386__ */
2114
2115 /***********************************************************************
2116  *              InterlockedCompareExchange (KERNEL32.@)
2117  *
2118  * Atomically swap one value with another.
2119  *
2120  * PARAMS
2121  *  dest    [I/O] The value to replace
2122  *  xchq    [I]   The value to be swapped
2123  *  compare [I]   The value to compare to dest
2124  *
2125  * RETURNS
2126  *  The resulting value of dest.
2127  *
2128  * NOTES
2129  *  dest is updated only if it is equal to compare, otherwise no swap is done.
2130  */
2131 LONG WINAPI InterlockedCompareExchange( LONG volatile *dest, LONG xchg, LONG compare )
2132 {
2133     return interlocked_cmpxchg( (int *)dest, xchg, compare );
2134 }
2135
2136 /***********************************************************************
2137  *              InterlockedExchange (KERNEL32.@)
2138  *
2139  * Atomically swap one value with another.
2140  *
2141  * PARAMS
2142  *  dest [I/O] The value to replace
2143  *  val  [I]   The value to be swapped
2144  *
2145  * RETURNS
2146  *  The resulting value of dest.
2147  */
2148 LONG WINAPI InterlockedExchange( LONG volatile *dest, LONG val )
2149 {
2150     return interlocked_xchg( (int *)dest, val );
2151 }
2152
2153 /***********************************************************************
2154  *              InterlockedExchangeAdd (KERNEL32.@)
2155  *
2156  * Atomically add one value to another.
2157  *
2158  * PARAMS
2159  *  dest [I/O] The value to add to
2160  *  incr [I]   The value to be added
2161  *
2162  * RETURNS
2163  *  The resulting value of dest.
2164  */
2165 LONG WINAPI InterlockedExchangeAdd( LONG volatile *dest, LONG incr )
2166 {
2167     return interlocked_xchg_add( (int *)dest, incr );
2168 }
2169
2170 /***********************************************************************
2171  *              InterlockedIncrement (KERNEL32.@)
2172  *
2173  * Atomically increment a value.
2174  *
2175  * PARAMS
2176  *  dest [I/O] The value to increment
2177  *
2178  * RETURNS
2179  *  The resulting value of dest.
2180  */
2181 LONG WINAPI InterlockedIncrement( LONG volatile *dest )
2182 {
2183     return interlocked_xchg_add( (int *)dest, 1 ) + 1;
2184 }
2185
2186 /***********************************************************************
2187  *              InterlockedDecrement (KERNEL32.@)
2188  *
2189  * Atomically decrement a value.
2190  *
2191  * PARAMS
2192  *  dest [I/O] The value to decrement
2193  *
2194  * RETURNS
2195  *  The resulting value of dest.
2196  */
2197 LONG WINAPI InterlockedDecrement( LONG volatile *dest )
2198 {
2199     return interlocked_xchg_add( (int *)dest, -1 ) - 1;
2200 }
2201
2202 #endif  /* __i386__ */