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Sweden-Number/dlls/kernel32/sync.c

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/*
* Kernel synchronization objects
*
* Copyright 1998 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "wincon.h"
#include "winerror.h"
#include "winnls.h"
#include "winternl.h"
#include "winioctl.h"
#include "ddk/wdm.h"
#include "wine/asm.h"
#include "wine/library.h"
#include "wine/unicode.h"
#include "kernel_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(sync);
static void get_create_object_attributes( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *nameW,
SECURITY_ATTRIBUTES *sa, const WCHAR *name )
{
attr->Length = sizeof(*attr);
attr->RootDirectory = 0;
attr->ObjectName = NULL;
attr->Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
attr->SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr->SecurityQualityOfService = NULL;
if (name)
{
RtlInitUnicodeString( nameW, name );
attr->ObjectName = nameW;
BaseGetNamedObjectDirectory( &attr->RootDirectory );
}
}
static BOOL get_open_object_attributes( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *nameW,
BOOL inherit, const WCHAR *name )
{
HANDLE dir;
if (!name)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
RtlInitUnicodeString( nameW, name );
BaseGetNamedObjectDirectory( &dir );
InitializeObjectAttributes( attr, nameW, inherit ? OBJ_INHERIT : 0, dir, NULL );
return TRUE;
}
static HANDLE normalize_handle_if_console(HANDLE handle)
{
if ((handle == (HANDLE)STD_INPUT_HANDLE) ||
(handle == (HANDLE)STD_OUTPUT_HANDLE) ||
(handle == (HANDLE)STD_ERROR_HANDLE))
handle = GetStdHandle( HandleToULong(handle) );
/* yes, even screen buffer console handles are waitable, and are
* handled as a handle to the console itself !!
*/
if (is_console_handle(handle))
{
if (VerifyConsoleIoHandle(handle))
handle = GetConsoleInputWaitHandle();
}
return handle;
}
/***********************************************************************
* RegisterWaitForSingleObject (KERNEL32.@)
*/
BOOL WINAPI RegisterWaitForSingleObject(PHANDLE phNewWaitObject, HANDLE hObject,
WAITORTIMERCALLBACK Callback, PVOID Context,
ULONG dwMilliseconds, ULONG dwFlags)
{
NTSTATUS status;
TRACE("%p %p %p %p %d %d\n",
phNewWaitObject,hObject,Callback,Context,dwMilliseconds,dwFlags);
hObject = normalize_handle_if_console(hObject);
status = RtlRegisterWait( phNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* UnregisterWait (KERNEL32.@)
*/
BOOL WINAPI UnregisterWait( HANDLE WaitHandle )
{
NTSTATUS status;
TRACE("%p\n",WaitHandle);
status = RtlDeregisterWait( WaitHandle );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* MakeCriticalSectionGlobal (KERNEL32.@)
*/
void WINAPI MakeCriticalSectionGlobal( CRITICAL_SECTION *crit )
{
/* let's assume that only one thread at a time will try to do this */
HANDLE sem = crit->LockSemaphore;
if (!sem) NtCreateSemaphore( &sem, SEMAPHORE_ALL_ACCESS, NULL, 0, 1 );
crit->LockSemaphore = ConvertToGlobalHandle( sem );
if (crit->DebugInfo != (void *)(ULONG_PTR)-1)
RtlFreeHeap( GetProcessHeap(), 0, crit->DebugInfo );
crit->DebugInfo = NULL;
}
/***********************************************************************
* ReinitializeCriticalSection (KERNEL32.@)
*
* Initialise an already used critical section.
*
* PARAMS
* crit [O] Critical section to initialise.
*
* RETURNS
* Nothing.
*/
void WINAPI ReinitializeCriticalSection( CRITICAL_SECTION *crit )
{
if ( !crit->LockSemaphore )
RtlInitializeCriticalSection( crit );
}
/***********************************************************************
* UninitializeCriticalSection (KERNEL32.@)
*
* UnInitialise a critical section after use.
*
* PARAMS
* crit [O] Critical section to uninitialise (destroy).
*
* RETURNS
* Nothing.
*/
void WINAPI UninitializeCriticalSection( CRITICAL_SECTION *crit )
{
RtlDeleteCriticalSection( crit );
}
/***********************************************************************
* OpenMutexA (KERNEL32.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenMutexA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenMutexW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenMutexW( access, inherit, buffer );
}
/*
* Semaphores
*/
/***********************************************************************
* CreateSemaphoreA (KERNEL32.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateSemaphoreA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCSTR name )
{
return CreateSemaphoreExA( sa, initial, max, name, 0, SEMAPHORE_ALL_ACCESS );
}
/***********************************************************************
* CreateSemaphoreExA (KERNEL32.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateSemaphoreExA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max,
LPCSTR name, DWORD flags, DWORD access )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateSemaphoreExW( sa, initial, max, NULL, flags, access );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateSemaphoreExW( sa, initial, max, buffer, flags, access );
}
/***********************************************************************
* OpenSemaphoreA (KERNEL32.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenSemaphoreA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenSemaphoreW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenSemaphoreW( access, inherit, buffer );
}
/*
* Jobs
*/
/******************************************************************************
* CreateJobObjectW (KERNEL32.@)
*/
HANDLE WINAPI CreateJobObjectW( LPSECURITY_ATTRIBUTES sa, LPCWSTR name )
{
HANDLE ret = 0;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
get_create_object_attributes( &attr, &nameW, sa, name );
status = NtCreateJobObject( &ret, JOB_OBJECT_ALL_ACCESS, &attr );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/******************************************************************************
* CreateJobObjectA (KERNEL32.@)
*/
HANDLE WINAPI CreateJobObjectA( LPSECURITY_ATTRIBUTES attr, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateJobObjectW( attr, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateJobObjectW( attr, buffer );
}
/******************************************************************************
* OpenJobObjectW (KERNEL32.@)
*/
HANDLE WINAPI OpenJobObjectW( DWORD access, BOOL inherit, LPCWSTR name )
{
HANDLE ret;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
status = NtOpenJobObject( &ret, access, &attr );
if (status != STATUS_SUCCESS)
{
SetLastError( RtlNtStatusToDosError(status) );
return 0;
}
return ret;
}
/******************************************************************************
* OpenJobObjectA (KERNEL32.@)
*/
HANDLE WINAPI OpenJobObjectA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenJobObjectW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenJobObjectW( access, inherit, buffer );
}
/******************************************************************************
* TerminateJobObject (KERNEL32.@)
*/
BOOL WINAPI TerminateJobObject( HANDLE job, UINT exit_code )
{
NTSTATUS status = NtTerminateJobObject( job, exit_code );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/******************************************************************************
* QueryInformationJobObject (KERNEL32.@)
*/
BOOL WINAPI QueryInformationJobObject( HANDLE job, JOBOBJECTINFOCLASS class, LPVOID info,
DWORD len, DWORD *ret_len )
{
NTSTATUS status = NtQueryInformationJobObject( job, class, info, len, ret_len );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/******************************************************************************
* SetInformationJobObject (KERNEL32.@)
*/
BOOL WINAPI SetInformationJobObject( HANDLE job, JOBOBJECTINFOCLASS class, LPVOID info, DWORD len )
{
NTSTATUS status = NtSetInformationJobObject( job, class, info, len );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/******************************************************************************
* AssignProcessToJobObject (KERNEL32.@)
*/
BOOL WINAPI AssignProcessToJobObject( HANDLE job, HANDLE process )
{
NTSTATUS status = NtAssignProcessToJobObject( job, process );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/******************************************************************************
* IsProcessInJob (KERNEL32.@)
*/
BOOL WINAPI IsProcessInJob( HANDLE process, HANDLE job, PBOOL result )
{
NTSTATUS status = NtIsProcessInJob( process, job );
switch(status)
{
case STATUS_PROCESS_IN_JOB:
*result = TRUE;
return TRUE;
case STATUS_PROCESS_NOT_IN_JOB:
*result = FALSE;
return TRUE;
default:
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
}
/*
* Timers
*/
/***********************************************************************
* CreateWaitableTimerA (KERNEL32.@)
*/
HANDLE WINAPI CreateWaitableTimerA( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCSTR name )
{
return CreateWaitableTimerExA( sa, name, manual ? CREATE_WAITABLE_TIMER_MANUAL_RESET : 0,
TIMER_ALL_ACCESS );
}
/***********************************************************************
* CreateWaitableTimerExA (KERNEL32.@)
*/
HANDLE WINAPI CreateWaitableTimerExA( SECURITY_ATTRIBUTES *sa, LPCSTR name, DWORD flags, DWORD access )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateWaitableTimerExW( sa, NULL, flags, access );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateWaitableTimerExW( sa, buffer, flags, access );
}
/***********************************************************************
* OpenWaitableTimerA (KERNEL32.@)
*/
HANDLE WINAPI OpenWaitableTimerA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenWaitableTimerW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenWaitableTimerW( access, inherit, buffer );
}
/***********************************************************************
* DeleteTimerQueue (KERNEL32.@)
*/
BOOL WINAPI DeleteTimerQueue(HANDLE TimerQueue)
{
return DeleteTimerQueueEx(TimerQueue, NULL);
}
/***********************************************************************
* CancelTimerQueueTimer (KERNEL32.@)
*/
BOOL WINAPI CancelTimerQueueTimer(HANDLE queue, HANDLE timer)
{
return DeleteTimerQueueTimer( queue, timer, NULL );
}
/*
* Mappings
*/
/***********************************************************************
* CreateFileMappingA (KERNEL32.@)
*/
HANDLE WINAPI CreateFileMappingA( HANDLE file, SECURITY_ATTRIBUTES *sa, DWORD protect,
DWORD size_high, DWORD size_low, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateFileMappingW( file, sa, protect, size_high, size_low, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateFileMappingW( file, sa, protect, size_high, size_low, buffer );
}
/***********************************************************************
* OpenFileMappingA (KERNEL32.@)
*/
HANDLE WINAPI OpenFileMappingA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenFileMappingW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenFileMappingW( access, inherit, buffer );
}
/*
* Pipes
*/
/***********************************************************************
* CreateNamedPipeA (KERNEL32.@)
*/
HANDLE WINAPI CreateNamedPipeA( LPCSTR name, DWORD dwOpenMode,
DWORD dwPipeMode, DWORD nMaxInstances,
DWORD nOutBufferSize, DWORD nInBufferSize,
DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateNamedPipeW( NULL, dwOpenMode, dwPipeMode, nMaxInstances,
nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return INVALID_HANDLE_VALUE;
}
return CreateNamedPipeW( buffer, dwOpenMode, dwPipeMode, nMaxInstances,
nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
}
/***********************************************************************
* WaitNamedPipeA (KERNEL32.@)
*/
BOOL WINAPI WaitNamedPipeA (LPCSTR name, DWORD nTimeOut)
{
WCHAR buffer[MAX_PATH];
if (!name) return WaitNamedPipeW( NULL, nTimeOut );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return FALSE;
}
return WaitNamedPipeW( buffer, nTimeOut );
}
/***********************************************************************
* GetNamedPipeClientProcessId (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeClientProcessId( HANDLE pipe, ULONG *id )
{
IO_STATUS_BLOCK iosb;
NTSTATUS status;
TRACE( "%p %p\n", pipe, id );
status = NtFsControlFile( pipe, NULL, NULL, NULL, &iosb, FSCTL_PIPE_GET_CONNECTION_ATTRIBUTE,
(void *)"ClientProcessId", sizeof("ClientProcessId"), id, sizeof(*id) );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* GetNamedPipeServerProcessId (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeServerProcessId( HANDLE pipe, ULONG *id )
{
IO_STATUS_BLOCK iosb;
NTSTATUS status;
TRACE( "%p, %p\n", pipe, id );
status = NtFsControlFile( pipe, NULL, NULL, NULL, &iosb, FSCTL_PIPE_GET_CONNECTION_ATTRIBUTE,
(void *)"ServerProcessId", sizeof("ServerProcessId"), id, sizeof(*id) );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* GetNamedPipeClientSessionId (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeClientSessionId( HANDLE pipe, ULONG *id )
{
FIXME( "%p, %p\n", pipe, id );
if (!id) return FALSE;
*id = NtCurrentTeb()->Peb->SessionId;
return TRUE;
}
/***********************************************************************
* GetNamedPipeServerSessionId (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeServerSessionId( HANDLE pipe, ULONG *id )
{
FIXME( "%p, %p\n", pipe, id );
if (!id) return FALSE;
*id = NtCurrentTeb()->Peb->SessionId;
return TRUE;
}
/***********************************************************************
* GetNamedPipeHandleStateA (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeHandleStateA(
HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
LPSTR lpUsername, DWORD nUsernameMaxSize)
{
WCHAR *username = NULL;
BOOL ret;
WARN("%p %p %p %p %p %p %d: semi-stub\n", hNamedPipe, lpState, lpCurInstances,
lpMaxCollectionCount, lpCollectDataTimeout, lpUsername, nUsernameMaxSize);
if (lpUsername && nUsernameMaxSize &&
!(username = HeapAlloc(GetProcessHeap(), 0, nUsernameMaxSize * sizeof(WCHAR)))) return FALSE;
ret = GetNamedPipeHandleStateW(hNamedPipe, lpState, lpCurInstances, lpMaxCollectionCount,
lpCollectDataTimeout, username, nUsernameMaxSize);
if (ret && username)
WideCharToMultiByte(CP_ACP, 0, username, -1, lpUsername, nUsernameMaxSize, NULL, NULL);
HeapFree(GetProcessHeap(), 0, username);
return ret;
}
/***********************************************************************
* GetNamedPipeHandleStateW (KERNEL32.@)
*/
BOOL WINAPI GetNamedPipeHandleStateW(
HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
LPWSTR lpUsername, DWORD nUsernameMaxSize)
{
IO_STATUS_BLOCK iosb;
NTSTATUS status;
FIXME("%p %p %p %p %p %p %d: semi-stub\n", hNamedPipe, lpState, lpCurInstances,
lpMaxCollectionCount, lpCollectDataTimeout, lpUsername, nUsernameMaxSize);
if (lpMaxCollectionCount)
*lpMaxCollectionCount = 0;
if (lpCollectDataTimeout)
*lpCollectDataTimeout = 0;
if (lpUsername && nUsernameMaxSize)
{
const char *username = wine_get_user_name();
int len = MultiByteToWideChar(CP_UNIXCP, 0, username, -1, lpUsername, nUsernameMaxSize);
if (!len) *lpUsername = 0;
}
if (lpState)
{
FILE_PIPE_INFORMATION fpi;
status = NtQueryInformationFile(hNamedPipe, &iosb, &fpi, sizeof(fpi),
FilePipeInformation);
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
*lpState = (fpi.ReadMode ? PIPE_READMODE_MESSAGE : PIPE_READMODE_BYTE) |
(fpi.CompletionMode ? PIPE_NOWAIT : PIPE_WAIT);
}
if (lpCurInstances)
{
FILE_PIPE_LOCAL_INFORMATION fpli;
status = NtQueryInformationFile(hNamedPipe, &iosb, &fpli, sizeof(fpli),
FilePipeLocalInformation);
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
*lpCurInstances = fpli.CurrentInstances;
}
return TRUE;
}
/***********************************************************************
* CallNamedPipeA (KERNEL32.@)
*/
BOOL WINAPI CallNamedPipeA(
LPCSTR lpNamedPipeName, LPVOID lpInput, DWORD dwInputSize,
LPVOID lpOutput, DWORD dwOutputSize,
LPDWORD lpBytesRead, DWORD nTimeout)
{
DWORD len;
LPWSTR str = NULL;
BOOL ret;
TRACE("%s %p %d %p %d %p %d\n",
debugstr_a(lpNamedPipeName), lpInput, dwInputSize,
lpOutput, dwOutputSize, lpBytesRead, nTimeout);
if( lpNamedPipeName )
{
len = MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, NULL, 0 );
str = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, str, len );
}
ret = CallNamedPipeW( str, lpInput, dwInputSize, lpOutput,
dwOutputSize, lpBytesRead, nTimeout );
if( lpNamedPipeName )
HeapFree( GetProcessHeap(), 0, str );
return ret;
}
/******************************************************************
* CreatePipe (KERNEL32.@)
*
*/
BOOL WINAPI CreatePipe( PHANDLE hReadPipe, PHANDLE hWritePipe,
LPSECURITY_ATTRIBUTES sa, DWORD size )
{
static unsigned index /* = 0 */;
WCHAR name[64];
HANDLE hr, hw;
unsigned in_index = index;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
IO_STATUS_BLOCK iosb;
LARGE_INTEGER timeout;
*hReadPipe = *hWritePipe = INVALID_HANDLE_VALUE;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE |
((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
if (!size) size = 4096;
timeout.QuadPart = (ULONGLONG)NMPWAIT_USE_DEFAULT_WAIT * -10000;
/* generate a unique pipe name (system wide) */
do
{
static const WCHAR nameFmt[] = { '\\','?','?','\\','p','i','p','e',
'\\','W','i','n','3','2','.','P','i','p','e','s','.','%','0','8','l',
'u','.','%','0','8','u','\0' };
snprintfW(name, ARRAY_SIZE(name), nameFmt, GetCurrentProcessId(), ++index);
RtlInitUnicodeString(&nt_name, name);
status = NtCreateNamedPipeFile(&hr, GENERIC_READ | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE,
&attr, &iosb, FILE_SHARE_WRITE, FILE_OVERWRITE_IF,
FILE_SYNCHRONOUS_IO_NONALERT,
FALSE, FALSE, FALSE,
1, size, size, &timeout);
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
hr = INVALID_HANDLE_VALUE;
}
} while (hr == INVALID_HANDLE_VALUE && index != in_index);
/* from completion sakeness, I think system resources might be exhausted before this happens !! */
if (hr == INVALID_HANDLE_VALUE) return FALSE;
status = NtOpenFile(&hw, GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE, &attr, &iosb, 0,
FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE);
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
NtClose(hr);
return FALSE;
}
*hReadPipe = hr;
*hWritePipe = hw;
return TRUE;
}
/******************************************************************************
* CreateMailslotA [KERNEL32.@]
*
* See CreateMailslotW.
*/
HANDLE WINAPI CreateMailslotA( LPCSTR lpName, DWORD nMaxMessageSize,
DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
{
DWORD len;
HANDLE handle;
LPWSTR name = NULL;
TRACE("%s %d %d %p\n", debugstr_a(lpName),
nMaxMessageSize, lReadTimeout, sa);
if( lpName )
{
len = MultiByteToWideChar( CP_ACP, 0, lpName, -1, NULL, 0 );
name = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, lpName, -1, name, len );
}
handle = CreateMailslotW( name, nMaxMessageSize, lReadTimeout, sa );
HeapFree( GetProcessHeap(), 0, name );
return handle;
}
/******************************************************************************
* CreateMailslotW [KERNEL32.@]
*
* Create a mailslot with specified name.
*
* PARAMS
* lpName [I] Pointer to string for mailslot name
* nMaxMessageSize [I] Maximum message size
* lReadTimeout [I] Milliseconds before read time-out
* sa [I] Pointer to security structure
*
* RETURNS
* Success: Handle to mailslot
* Failure: INVALID_HANDLE_VALUE
*/
HANDLE WINAPI CreateMailslotW( LPCWSTR lpName, DWORD nMaxMessageSize,
DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
{
HANDLE handle = INVALID_HANDLE_VALUE;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
LARGE_INTEGER timeout;
IO_STATUS_BLOCK iosb;
NTSTATUS status;
TRACE("%s %d %d %p\n", debugstr_w(lpName),
nMaxMessageSize, lReadTimeout, sa);
if (!RtlDosPathNameToNtPathName_U( lpName, &nameW, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
if (nameW.Length >= MAX_PATH * sizeof(WCHAR) )
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
RtlFreeUnicodeString( &nameW );
return INVALID_HANDLE_VALUE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = OBJ_CASE_INSENSITIVE;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
if (lReadTimeout != MAILSLOT_WAIT_FOREVER)
timeout.QuadPart = (ULONGLONG) lReadTimeout * -10000;
else
timeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
status = NtCreateMailslotFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr,
&iosb, 0, 0, nMaxMessageSize, &timeout );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
handle = INVALID_HANDLE_VALUE;
}
RtlFreeUnicodeString( &nameW );
return handle;
}
/******************************************************************************
* GetMailslotInfo [KERNEL32.@]
*
* Retrieve information about a mailslot.
*
* PARAMS
* hMailslot [I] Mailslot handle
* lpMaxMessageSize [O] Address of maximum message size
* lpNextSize [O] Address of size of next message
* lpMessageCount [O] Address of number of messages
* lpReadTimeout [O] Address of read time-out
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI GetMailslotInfo( HANDLE hMailslot, LPDWORD lpMaxMessageSize,
LPDWORD lpNextSize, LPDWORD lpMessageCount,
LPDWORD lpReadTimeout )
{
FILE_MAILSLOT_QUERY_INFORMATION info;
IO_STATUS_BLOCK iosb;
NTSTATUS status;
TRACE("%p %p %p %p %p\n",hMailslot, lpMaxMessageSize,
lpNextSize, lpMessageCount, lpReadTimeout);
status = NtQueryInformationFile( hMailslot, &iosb, &info, sizeof info,
FileMailslotQueryInformation );
if( status != STATUS_SUCCESS )
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
if( lpMaxMessageSize )
*lpMaxMessageSize = info.MaximumMessageSize;
if( lpNextSize )
*lpNextSize = info.NextMessageSize;
if( lpMessageCount )
*lpMessageCount = info.MessagesAvailable;
if( lpReadTimeout )
{
if (info.ReadTimeout.QuadPart == (((LONGLONG)0x7fffffff << 32) | 0xffffffff))
*lpReadTimeout = MAILSLOT_WAIT_FOREVER;
else
*lpReadTimeout = info.ReadTimeout.QuadPart / -10000;
}
return TRUE;
}
/******************************************************************************
* SetMailslotInfo [KERNEL32.@]
*
* Set the read timeout of a mailslot.
*
* PARAMS
* hMailslot [I] Mailslot handle
* dwReadTimeout [I] Timeout in milliseconds.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI SetMailslotInfo( HANDLE hMailslot, DWORD dwReadTimeout)
{
FILE_MAILSLOT_SET_INFORMATION info;
IO_STATUS_BLOCK iosb;
NTSTATUS status;
TRACE("%p %d\n", hMailslot, dwReadTimeout);
if (dwReadTimeout != MAILSLOT_WAIT_FOREVER)
info.ReadTimeout.QuadPart = (ULONGLONG)dwReadTimeout * -10000;
else
info.ReadTimeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
status = NtSetInformationFile( hMailslot, &iosb, &info, sizeof info,
FileMailslotSetInformation );
if( status != STATUS_SUCCESS )
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
return TRUE;
}
/******************************************************************************
* BindIoCompletionCallback (KERNEL32.@)
*/
BOOL WINAPI BindIoCompletionCallback( HANDLE FileHandle, LPOVERLAPPED_COMPLETION_ROUTINE Function, ULONG Flags)
{
NTSTATUS status;
TRACE("(%p, %p, %d)\n", FileHandle, Function, Flags);
status = RtlSetIoCompletionCallback( FileHandle, (PRTL_OVERLAPPED_COMPLETION_ROUTINE)Function, Flags );
if (status == STATUS_SUCCESS) return TRUE;
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
#ifdef __i386__
/***********************************************************************
* InterlockedCompareExchange (KERNEL32.@)
*/
/* LONG WINAPI InterlockedCompareExchange( PLONG dest, LONG xchg, LONG compare ); */
__ASM_STDCALL_FUNC(InterlockedCompareExchange, 12,
"movl 12(%esp),%eax\n\t"
"movl 8(%esp),%ecx\n\t"
"movl 4(%esp),%edx\n\t"
"lock; cmpxchgl %ecx,(%edx)\n\t"
"ret $12")
/***********************************************************************
* InterlockedExchange (KERNEL32.@)
*/
/* LONG WINAPI InterlockedExchange( PLONG dest, LONG val ); */
__ASM_STDCALL_FUNC(InterlockedExchange, 8,
"movl 8(%esp),%eax\n\t"
"movl 4(%esp),%edx\n\t"
"lock; xchgl %eax,(%edx)\n\t"
"ret $8")
/***********************************************************************
* InterlockedExchangeAdd (KERNEL32.@)
*/
/* LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr ); */
__ASM_STDCALL_FUNC(InterlockedExchangeAdd, 8,
"movl 8(%esp),%eax\n\t"
"movl 4(%esp),%edx\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"ret $8")
/***********************************************************************
* InterlockedIncrement (KERNEL32.@)
*/
/* LONG WINAPI InterlockedIncrement( PLONG dest ); */
__ASM_STDCALL_FUNC(InterlockedIncrement, 4,
"movl 4(%esp),%edx\n\t"
"movl $1,%eax\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"incl %eax\n\t"
"ret $4")
/***********************************************************************
* InterlockedDecrement (KERNEL32.@)
*/
__ASM_STDCALL_FUNC(InterlockedDecrement, 4,
"movl 4(%esp),%edx\n\t"
"movl $-1,%eax\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"decl %eax\n\t"
"ret $4")
#endif /* __i386__ */
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