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Sweden-Number/dlls/ntdll/unix/sync.c

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/*
* Process synchronisation
*
* Copyright 1996, 1997, 1998 Marcus Meissner
* Copyright 1997, 1999 Alexandre Julliard
* Copyright 1999, 2000 Juergen Schmied
* Copyright 2003 Eric Pouech
*
* 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
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <signal.h>
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_POLL_H
#include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SCHED_H
# include <sched.h>
#endif
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#ifdef __APPLE__
# include <mach/mach.h>
# include <mach/task.h>
# include <mach/semaphore.h>
# include <mach/mach_time.h>
#endif
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "windef.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "wine/server.h"
#include "wine/exception.h"
#include "wine/debug.h"
#include "unix_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(sync);
HANDLE keyed_event = 0;
static const LARGE_INTEGER zero_timeout;
static pthread_mutex_t addr_mutex = PTHREAD_MUTEX_INITIALIZER;
/* return a monotonic time counter, in Win32 ticks */
static inline ULONGLONG monotonic_counter(void)
{
struct timeval now;
#ifdef __APPLE__
static mach_timebase_info_data_t timebase;
if (!timebase.denom) mach_timebase_info( &timebase );
#ifdef HAVE_MACH_CONTINUOUS_TIME
if (&mach_continuous_time != NULL)
return mach_continuous_time() * timebase.numer / timebase.denom / 100;
#endif
return mach_absolute_time() * timebase.numer / timebase.denom / 100;
#elif defined(HAVE_CLOCK_GETTIME)
struct timespec ts;
#ifdef CLOCK_MONOTONIC_RAW
if (!clock_gettime( CLOCK_MONOTONIC_RAW, &ts ))
return ts.tv_sec * (ULONGLONG)TICKSPERSEC + ts.tv_nsec / 100;
#endif
if (!clock_gettime( CLOCK_MONOTONIC, &ts ))
return ts.tv_sec * (ULONGLONG)TICKSPERSEC + ts.tv_nsec / 100;
#endif
gettimeofday( &now, 0 );
return now.tv_sec * (ULONGLONG)TICKSPERSEC + now.tv_usec * 10 + TICKS_1601_TO_1970 - server_start_time;
}
#ifdef __linux__
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
#define FUTEX_WAIT_BITSET 9
#define FUTEX_WAKE_BITSET 10
static int futex_private = 128;
static inline int futex_wait( const int *addr, int val, struct timespec *timeout )
{
return syscall( __NR_futex, addr, FUTEX_WAIT | futex_private, val, timeout, 0, 0 );
}
static inline int futex_wake( const int *addr, int val )
{
return syscall( __NR_futex, addr, FUTEX_WAKE | futex_private, val, NULL, 0, 0 );
}
static inline int futex_wait_bitset( const int *addr, int val, struct timespec *timeout, int mask )
{
return syscall( __NR_futex, addr, FUTEX_WAIT_BITSET | futex_private, val, timeout, 0, mask );
}
static inline int futex_wake_bitset( const int *addr, int val, int mask )
{
return syscall( __NR_futex, addr, FUTEX_WAKE_BITSET | futex_private, val, NULL, 0, mask );
}
static inline int use_futexes(void)
{
static int supported = -1;
if (supported == -1)
{
futex_wait( &supported, 10, NULL );
if (errno == ENOSYS)
{
futex_private = 0;
futex_wait( &supported, 10, NULL );
}
supported = (errno != ENOSYS);
}
return supported;
}
static int *get_futex(void **ptr)
{
if (sizeof(void *) == 8)
return (int *)((((ULONG_PTR)ptr) + 3) & ~3);
else if (!(((ULONG_PTR)ptr) & 3))
return (int *)ptr;
else
return NULL;
}
static void timespec_from_timeout( struct timespec *timespec, const LARGE_INTEGER *timeout )
{
LARGE_INTEGER now;
timeout_t diff;
if (timeout->QuadPart > 0)
{
NtQuerySystemTime( &now );
diff = timeout->QuadPart - now.QuadPart;
}
else
diff = -timeout->QuadPart;
timespec->tv_sec = diff / TICKSPERSEC;
timespec->tv_nsec = (diff % TICKSPERSEC) * 100;
}
#endif
static BOOL compare_addr( const void *addr, const void *cmp, SIZE_T size )
{
switch (size)
{
case 1:
return (*(const UCHAR *)addr == *(const UCHAR *)cmp);
case 2:
return (*(const USHORT *)addr == *(const USHORT *)cmp);
case 4:
return (*(const ULONG *)addr == *(const ULONG *)cmp);
case 8:
return (*(const ULONG64 *)addr == *(const ULONG64 *)cmp);
}
return FALSE;
}
/* create a struct security_descriptor and contained information in one contiguous piece of memory */
NTSTATUS alloc_object_attributes( const OBJECT_ATTRIBUTES *attr, struct object_attributes **ret,
data_size_t *ret_len )
{
unsigned int len = sizeof(**ret);
SID *owner = NULL, *group = NULL;
ACL *dacl = NULL, *sacl = NULL;
SECURITY_DESCRIPTOR *sd;
*ret = NULL;
*ret_len = 0;
if (!attr) return STATUS_SUCCESS;
if (attr->Length != sizeof(*attr)) return STATUS_INVALID_PARAMETER;
if ((sd = attr->SecurityDescriptor))
{
len += sizeof(struct security_descriptor);
if (sd->Revision != SECURITY_DESCRIPTOR_REVISION) return STATUS_UNKNOWN_REVISION;
if (sd->Control & SE_SELF_RELATIVE)
{
SECURITY_DESCRIPTOR_RELATIVE *rel = (SECURITY_DESCRIPTOR_RELATIVE *)sd;
if (rel->Owner) owner = (PSID)((BYTE *)rel + rel->Owner);
if (rel->Group) group = (PSID)((BYTE *)rel + rel->Group);
if ((sd->Control & SE_SACL_PRESENT) && rel->Sacl) sacl = (PSID)((BYTE *)rel + rel->Sacl);
if ((sd->Control & SE_DACL_PRESENT) && rel->Dacl) dacl = (PSID)((BYTE *)rel + rel->Dacl);
}
else
{
owner = sd->Owner;
group = sd->Group;
if (sd->Control & SE_SACL_PRESENT) sacl = sd->Sacl;
if (sd->Control & SE_DACL_PRESENT) dacl = sd->Dacl;
}
if (owner) len += offsetof( SID, SubAuthority[owner->SubAuthorityCount] );
if (group) len += offsetof( SID, SubAuthority[group->SubAuthorityCount] );
if (sacl) len += sacl->AclSize;
if (dacl) len += dacl->AclSize;
/* fix alignment for the Unicode name that follows the structure */
len = (len + sizeof(WCHAR) - 1) & ~(sizeof(WCHAR) - 1);
}
if (attr->ObjectName)
{
if (attr->ObjectName->Length & (sizeof(WCHAR) - 1)) return STATUS_OBJECT_NAME_INVALID;
len += attr->ObjectName->Length;
}
else if (attr->RootDirectory) return STATUS_OBJECT_NAME_INVALID;
len = (len + 3) & ~3; /* DWORD-align the entire structure */
if (!(*ret = calloc( len, 1 ))) return STATUS_NO_MEMORY;
(*ret)->rootdir = wine_server_obj_handle( attr->RootDirectory );
(*ret)->attributes = attr->Attributes;
if (attr->SecurityDescriptor)
{
struct security_descriptor *descr = (struct security_descriptor *)(*ret + 1);
unsigned char *ptr = (unsigned char *)(descr + 1);
descr->control = sd->Control & ~SE_SELF_RELATIVE;
if (owner) descr->owner_len = offsetof( SID, SubAuthority[owner->SubAuthorityCount] );
if (group) descr->group_len = offsetof( SID, SubAuthority[group->SubAuthorityCount] );
if (sacl) descr->sacl_len = sacl->AclSize;
if (dacl) descr->dacl_len = dacl->AclSize;
memcpy( ptr, owner, descr->owner_len );
ptr += descr->owner_len;
memcpy( ptr, group, descr->group_len );
ptr += descr->group_len;
memcpy( ptr, sacl, descr->sacl_len );
ptr += descr->sacl_len;
memcpy( ptr, dacl, descr->dacl_len );
(*ret)->sd_len = (sizeof(*descr) + descr->owner_len + descr->group_len + descr->sacl_len +
descr->dacl_len + sizeof(WCHAR) - 1) & ~(sizeof(WCHAR) - 1);
}
if (attr->ObjectName)
{
unsigned char *ptr = (unsigned char *)(*ret + 1) + (*ret)->sd_len;
(*ret)->name_len = attr->ObjectName->Length;
memcpy( ptr, attr->ObjectName->Buffer, (*ret)->name_len );
}
*ret_len = len;
return STATUS_SUCCESS;
}
static NTSTATUS validate_open_object_attributes( const OBJECT_ATTRIBUTES *attr )
{
if (!attr || attr->Length != sizeof(*attr)) return STATUS_INVALID_PARAMETER;
if (attr->ObjectName)
{
if (attr->ObjectName->Length & (sizeof(WCHAR) - 1)) return STATUS_OBJECT_NAME_INVALID;
}
else if (attr->RootDirectory) return STATUS_OBJECT_NAME_INVALID;
return STATUS_SUCCESS;
}
/******************************************************************************
* NtCreateSemaphore (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateSemaphore( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
LONG initial, LONG max )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if (max <= 0 || initial < 0 || initial > max) return STATUS_INVALID_PARAMETER;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_semaphore )
{
req->access = access;
req->initial = initial;
req->max = max;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/******************************************************************************
* NtOpenSemaphore (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenSemaphore( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_semaphore )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtQuerySemaphore (NTDLL.@)
*/
NTSTATUS WINAPI NtQuerySemaphore( HANDLE handle, SEMAPHORE_INFORMATION_CLASS class,
void *info, ULONG len, ULONG *ret_len )
{
NTSTATUS ret;
SEMAPHORE_BASIC_INFORMATION *out = info;
TRACE("(%p, %u, %p, %u, %p)\n", handle, class, info, len, ret_len);
if (class != SemaphoreBasicInformation)
{
FIXME("(%p,%d,%u) Unknown class\n", handle, class, len);
return STATUS_INVALID_INFO_CLASS;
}
if (len != sizeof(SEMAPHORE_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( query_semaphore )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
out->CurrentCount = reply->current;
out->MaximumCount = reply->max;
if (ret_len) *ret_len = sizeof(SEMAPHORE_BASIC_INFORMATION);
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtReleaseSemaphore (NTDLL.@)
*/
NTSTATUS WINAPI NtReleaseSemaphore( HANDLE handle, ULONG count, ULONG *previous )
{
NTSTATUS ret;
SERVER_START_REQ( release_semaphore )
{
req->handle = wine_server_obj_handle( handle );
req->count = count;
if (!(ret = wine_server_call( req )))
{
if (previous) *previous = reply->prev_count;
}
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtCreateEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateEvent( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
EVENT_TYPE type, BOOLEAN state )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_event )
{
req->access = access;
req->manual_reset = (type == NotificationEvent);
req->initial_state = state;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/******************************************************************************
* NtOpenEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenEvent( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_event )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtSetEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtSetEvent( HANDLE handle, LONG *prev_state )
{
NTSTATUS ret;
SERVER_START_REQ( event_op )
{
req->handle = wine_server_obj_handle( handle );
req->op = SET_EVENT;
ret = wine_server_call( req );
if (!ret && prev_state) *prev_state = reply->state;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtResetEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtResetEvent( HANDLE handle, LONG *prev_state )
{
NTSTATUS ret;
SERVER_START_REQ( event_op )
{
req->handle = wine_server_obj_handle( handle );
req->op = RESET_EVENT;
ret = wine_server_call( req );
if (!ret && prev_state) *prev_state = reply->state;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtClearEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtClearEvent( HANDLE handle )
{
/* FIXME: same as NtResetEvent ??? */
return NtResetEvent( handle, NULL );
}
/******************************************************************************
* NtPulseEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtPulseEvent( HANDLE handle, LONG *prev_state )
{
NTSTATUS ret;
SERVER_START_REQ( event_op )
{
req->handle = wine_server_obj_handle( handle );
req->op = PULSE_EVENT;
ret = wine_server_call( req );
if (!ret && prev_state) *prev_state = reply->state;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtQueryEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryEvent( HANDLE handle, EVENT_INFORMATION_CLASS class,
void *info, ULONG len, ULONG *ret_len )
{
NTSTATUS ret;
EVENT_BASIC_INFORMATION *out = info;
TRACE("(%p, %u, %p, %u, %p)\n", handle, class, info, len, ret_len);
if (class != EventBasicInformation)
{
FIXME("(%p, %d, %d) Unknown class\n",
handle, class, len);
return STATUS_INVALID_INFO_CLASS;
}
if (len != sizeof(EVENT_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( query_event )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
out->EventType = reply->manual_reset ? NotificationEvent : SynchronizationEvent;
out->EventState = reply->state;
if (ret_len) *ret_len = sizeof(EVENT_BASIC_INFORMATION);
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtCreateMutant (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateMutant( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
BOOLEAN owned )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_mutex )
{
req->access = access;
req->owned = owned;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/**************************************************************************
* NtOpenMutant (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenMutant( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_mutex )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtReleaseMutant (NTDLL.@)
*/
NTSTATUS WINAPI NtReleaseMutant( HANDLE handle, LONG *prev_count )
{
NTSTATUS ret;
SERVER_START_REQ( release_mutex )
{
req->handle = wine_server_obj_handle( handle );
ret = wine_server_call( req );
if (prev_count) *prev_count = 1 - reply->prev_count;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************
* NtQueryMutant (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryMutant( HANDLE handle, MUTANT_INFORMATION_CLASS class,
void *info, ULONG len, ULONG *ret_len )
{
NTSTATUS ret;
MUTANT_BASIC_INFORMATION *out = info;
TRACE("(%p, %u, %p, %u, %p)\n", handle, class, info, len, ret_len);
if (class != MutantBasicInformation)
{
FIXME( "(%p, %d, %d) Unknown class\n", handle, class, len );
return STATUS_INVALID_INFO_CLASS;
}
if (len != sizeof(MUTANT_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( query_mutex )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
out->CurrentCount = 1 - reply->count;
out->OwnedByCaller = reply->owned;
out->AbandonedState = reply->abandoned;
if (ret_len) *ret_len = sizeof(MUTANT_BASIC_INFORMATION);
}
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtCreateJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateJobObject( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_job )
{
req->access = access;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/**************************************************************************
* NtOpenJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenJobObject( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_job )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtTerminateJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtTerminateJobObject( HANDLE handle, NTSTATUS status )
{
NTSTATUS ret;
TRACE( "(%p, %d)\n", handle, status );
SERVER_START_REQ( terminate_job )
{
req->handle = wine_server_obj_handle( handle );
req->status = status;
ret = wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtQueryInformationJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryInformationJobObject( HANDLE handle, JOBOBJECTINFOCLASS class, void *info,
ULONG len, ULONG *ret_len )
{
NTSTATUS ret;
TRACE( "semi-stub: %p %u %p %u %p\n", handle, class, info, len, ret_len );
if (class >= MaxJobObjectInfoClass) return STATUS_INVALID_PARAMETER;
switch (class)
{
case JobObjectBasicAccountingInformation:
{
JOBOBJECT_BASIC_ACCOUNTING_INFORMATION *accounting = info;
if (len < sizeof(*accounting)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ(get_job_info)
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
memset( accounting, 0, sizeof(*accounting) );
accounting->TotalProcesses = reply->total_processes;
accounting->ActiveProcesses = reply->active_processes;
}
}
SERVER_END_REQ;
if (ret_len) *ret_len = sizeof(*accounting);
return ret;
}
case JobObjectBasicProcessIdList:
{
JOBOBJECT_BASIC_PROCESS_ID_LIST *process = info;
if (len < sizeof(*process)) return STATUS_INFO_LENGTH_MISMATCH;
memset( process, 0, sizeof(*process) );
if (ret_len) *ret_len = sizeof(*process);
return STATUS_SUCCESS;
}
case JobObjectExtendedLimitInformation:
{
JOBOBJECT_EXTENDED_LIMIT_INFORMATION *extended_limit = info;
if (len < sizeof(*extended_limit)) return STATUS_INFO_LENGTH_MISMATCH;
memset( extended_limit, 0, sizeof(*extended_limit) );
if (ret_len) *ret_len = sizeof(*extended_limit);
return STATUS_SUCCESS;
}
case JobObjectBasicLimitInformation:
{
JOBOBJECT_BASIC_LIMIT_INFORMATION *basic_limit = info;
if (len < sizeof(*basic_limit)) return STATUS_INFO_LENGTH_MISMATCH;
memset( basic_limit, 0, sizeof(*basic_limit) );
if (ret_len) *ret_len = sizeof(*basic_limit);
return STATUS_SUCCESS;
}
default:
return STATUS_NOT_IMPLEMENTED;
}
}
/**************************************************************************
* NtSetInformationJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtSetInformationJobObject( HANDLE handle, JOBOBJECTINFOCLASS class, void *info, ULONG len )
{
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
JOBOBJECT_BASIC_LIMIT_INFORMATION *basic_limit;
ULONG info_size = sizeof(JOBOBJECT_BASIC_LIMIT_INFORMATION);
DWORD limit_flags = JOB_OBJECT_BASIC_LIMIT_VALID_FLAGS;
TRACE( "(%p, %u, %p, %u)\n", handle, class, info, len );
if (class >= MaxJobObjectInfoClass) return STATUS_INVALID_PARAMETER;
switch (class)
{
case JobObjectExtendedLimitInformation:
info_size = sizeof(JOBOBJECT_EXTENDED_LIMIT_INFORMATION);
limit_flags = JOB_OBJECT_EXTENDED_LIMIT_VALID_FLAGS;
/* fall through */
case JobObjectBasicLimitInformation:
if (len != info_size) return STATUS_INVALID_PARAMETER;
basic_limit = info;
if (basic_limit->LimitFlags & ~limit_flags) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_job_limits )
{
req->handle = wine_server_obj_handle( handle );
req->limit_flags = basic_limit->LimitFlags;
status = wine_server_call( req );
}
SERVER_END_REQ;
break;
case JobObjectAssociateCompletionPortInformation:
if (len != sizeof(JOBOBJECT_ASSOCIATE_COMPLETION_PORT)) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_job_completion_port )
{
JOBOBJECT_ASSOCIATE_COMPLETION_PORT *port_info = info;
req->job = wine_server_obj_handle( handle );
req->port = wine_server_obj_handle( port_info->CompletionPort );
req->key = wine_server_client_ptr( port_info->CompletionKey );
status = wine_server_call( req );
}
SERVER_END_REQ;
break;
case JobObjectBasicUIRestrictions:
status = STATUS_SUCCESS;
/* fall through */
default:
FIXME( "stub: %p %u %p %u\n", handle, class, info, len );
}
return status;
}
/**************************************************************************
* NtIsProcessInJob (NTDLL.@)
*/
NTSTATUS WINAPI NtIsProcessInJob( HANDLE process, HANDLE job )
{
NTSTATUS status;
TRACE( "(%p %p)\n", job, process );
SERVER_START_REQ( process_in_job )
{
req->job = wine_server_obj_handle( job );
req->process = wine_server_obj_handle( process );
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
/**************************************************************************
* NtAssignProcessToJobObject (NTDLL.@)
*/
NTSTATUS WINAPI NtAssignProcessToJobObject( HANDLE job, HANDLE process )
{
NTSTATUS status;
TRACE( "(%p %p)\n", job, process );
SERVER_START_REQ( assign_job )
{
req->job = wine_server_obj_handle( job );
req->process = wine_server_obj_handle( process );
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
/**************************************************************************
* NtCreateDirectoryObject (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateDirectoryObject( HANDLE *handle, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if (!handle) return STATUS_ACCESS_VIOLATION;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_directory )
{
req->access = access;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/**************************************************************************
* NtOpenDirectoryObject (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenDirectoryObject( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if (!handle) return STATUS_ACCESS_VIOLATION;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_directory )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtQueryDirectoryObject (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryDirectoryObject( HANDLE handle, DIRECTORY_BASIC_INFORMATION *buffer,
ULONG size, BOOLEAN single_entry, BOOLEAN restart,
ULONG *context, ULONG *ret_size )
{
NTSTATUS ret;
if (restart) *context = 0;
if (single_entry)
{
if (size <= sizeof(*buffer) + 2 * sizeof(WCHAR)) return STATUS_BUFFER_OVERFLOW;
SERVER_START_REQ( get_directory_entry )
{
req->handle = wine_server_obj_handle( handle );
req->index = *context;
wine_server_set_reply( req, buffer + 1, size - sizeof(*buffer) - 2*sizeof(WCHAR) );
if (!(ret = wine_server_call( req )))
{
buffer->ObjectName.Buffer = (WCHAR *)(buffer + 1);
buffer->ObjectName.Length = reply->name_len;
buffer->ObjectName.MaximumLength = reply->name_len + sizeof(WCHAR);
buffer->ObjectTypeName.Buffer = (WCHAR *)(buffer + 1) + reply->name_len/sizeof(WCHAR) + 1;
buffer->ObjectTypeName.Length = wine_server_reply_size( reply ) - reply->name_len;
buffer->ObjectTypeName.MaximumLength = buffer->ObjectTypeName.Length + sizeof(WCHAR);
/* make room for the terminating null */
memmove( buffer->ObjectTypeName.Buffer, buffer->ObjectTypeName.Buffer - 1,
buffer->ObjectTypeName.Length );
buffer->ObjectName.Buffer[buffer->ObjectName.Length/sizeof(WCHAR)] = 0;
buffer->ObjectTypeName.Buffer[buffer->ObjectTypeName.Length/sizeof(WCHAR)] = 0;
(*context)++;
}
}
SERVER_END_REQ;
if (ret_size)
*ret_size = buffer->ObjectName.MaximumLength + buffer->ObjectTypeName.MaximumLength + sizeof(*buffer);
}
else
{
FIXME("multiple entries not implemented\n");
ret = STATUS_NOT_IMPLEMENTED;
}
return ret;
}
/**************************************************************************
* NtCreateSymbolicLinkObject (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateSymbolicLinkObject( HANDLE *handle, ACCESS_MASK access,
OBJECT_ATTRIBUTES *attr, UNICODE_STRING *target )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if (!handle || !attr || !target) return STATUS_ACCESS_VIOLATION;
if (!target->Buffer) return STATUS_INVALID_PARAMETER;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_symlink )
{
req->access = access;
wine_server_add_data( req, objattr, len );
wine_server_add_data( req, target->Buffer, target->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/**************************************************************************
* NtOpenSymbolicLinkObject (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenSymbolicLinkObject( HANDLE *handle, ACCESS_MASK access,
const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if (!handle) return STATUS_ACCESS_VIOLATION;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_symlink )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtQuerySymbolicLinkObject (NTDLL.@)
*/
NTSTATUS WINAPI NtQuerySymbolicLinkObject( HANDLE handle, UNICODE_STRING *target, ULONG *length )
{
NTSTATUS ret;
if (!target) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ( query_symlink )
{
req->handle = wine_server_obj_handle( handle );
if (target->MaximumLength >= sizeof(WCHAR))
wine_server_set_reply( req, target->Buffer, target->MaximumLength - sizeof(WCHAR) );
if (!(ret = wine_server_call( req )))
{
target->Length = wine_server_reply_size(reply);
target->Buffer[target->Length / sizeof(WCHAR)] = 0;
if (length) *length = reply->total + sizeof(WCHAR);
}
else if (length && ret == STATUS_BUFFER_TOO_SMALL) *length = reply->total + sizeof(WCHAR);
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtMakeTemporaryObject (NTDLL.@)
*/
NTSTATUS WINAPI NtMakeTemporaryObject( HANDLE handle )
{
NTSTATUS ret;
TRACE("%p\n", handle);
SERVER_START_REQ( make_temporary )
{
req->handle = wine_server_obj_handle( handle );
ret = wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtCreateTimer (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateTimer( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
TIMER_TYPE type )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if (type != NotificationTimer && type != SynchronizationTimer) return STATUS_INVALID_PARAMETER;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_timer )
{
req->access = access;
req->manual = (type == NotificationTimer);
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/**************************************************************************
* NtOpenTimer (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenTimer( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_timer )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/**************************************************************************
* NtSetTimer (NTDLL.@)
*/
NTSTATUS WINAPI NtSetTimer( HANDLE handle, const LARGE_INTEGER *when, PTIMER_APC_ROUTINE callback,
void *arg, BOOLEAN resume, ULONG period, BOOLEAN *state )
{
NTSTATUS ret = STATUS_SUCCESS;
TRACE( "(%p,%p,%p,%p,%08x,0x%08x,%p)\n", handle, when, callback, arg, resume, period, state );
SERVER_START_REQ( set_timer )
{
req->handle = wine_server_obj_handle( handle );
req->period = period;
req->expire = when->QuadPart;
req->callback = wine_server_client_ptr( callback );
req->arg = wine_server_client_ptr( arg );
ret = wine_server_call( req );
if (state) *state = reply->signaled;
}
SERVER_END_REQ;
/* set error but can still succeed */
if (resume && ret == STATUS_SUCCESS) return STATUS_TIMER_RESUME_IGNORED;
return ret;
}
/**************************************************************************
* NtCancelTimer (NTDLL.@)
*/
NTSTATUS WINAPI NtCancelTimer( HANDLE handle, BOOLEAN *state )
{
NTSTATUS ret;
SERVER_START_REQ( cancel_timer )
{
req->handle = wine_server_obj_handle( handle );
ret = wine_server_call( req );
if (state) *state = reply->signaled;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtQueryTimer (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryTimer( HANDLE handle, TIMER_INFORMATION_CLASS class,
void *info, ULONG len, ULONG *ret_len )
{
TIMER_BASIC_INFORMATION *basic_info = info;
NTSTATUS ret;
LARGE_INTEGER now;
TRACE( "(%p,%d,%p,0x%08x,%p)\n", handle, class, info, len, ret_len );
switch (class)
{
case TimerBasicInformation:
if (len < sizeof(TIMER_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( get_timer_info )
{
req->handle = wine_server_obj_handle( handle );
ret = wine_server_call(req);
/* convert server time to absolute NTDLL time */
basic_info->RemainingTime.QuadPart = reply->when;
basic_info->TimerState = reply->signaled;
}
SERVER_END_REQ;
/* convert into relative time */
if (basic_info->RemainingTime.QuadPart > 0) NtQuerySystemTime( &now );
else
{
NtQueryPerformanceCounter( &now, NULL );
basic_info->RemainingTime.QuadPart = -basic_info->RemainingTime.QuadPart;
}
if (now.QuadPart > basic_info->RemainingTime.QuadPart)
basic_info->RemainingTime.QuadPart = 0;
else
basic_info->RemainingTime.QuadPart -= now.QuadPart;
if (ret_len) *ret_len = sizeof(TIMER_BASIC_INFORMATION);
return ret;
}
FIXME( "Unhandled class %d\n", class );
return STATUS_INVALID_INFO_CLASS;
}
/******************************************************************
* NtWaitForMultipleObjects (NTDLL.@)
*/
NTSTATUS WINAPI NtWaitForMultipleObjects( DWORD count, const HANDLE *handles, BOOLEAN wait_any,
BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
select_op_t select_op;
UINT i, flags = SELECT_INTERRUPTIBLE;
if (!count || count > MAXIMUM_WAIT_OBJECTS) return STATUS_INVALID_PARAMETER_1;
if (alertable) flags |= SELECT_ALERTABLE;
select_op.wait.op = wait_any ? SELECT_WAIT : SELECT_WAIT_ALL;
for (i = 0; i < count; i++) select_op.wait.handles[i] = wine_server_obj_handle( handles[i] );
return server_wait( &select_op, offsetof( select_op_t, wait.handles[count] ), flags, timeout );
}
/******************************************************************
* NtWaitForSingleObject (NTDLL.@)
*/
NTSTATUS WINAPI NtWaitForSingleObject( HANDLE handle, BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
return NtWaitForMultipleObjects( 1, &handle, FALSE, alertable, timeout );
}
/******************************************************************
* NtSignalAndWaitForSingleObject (NTDLL.@)
*/
NTSTATUS WINAPI NtSignalAndWaitForSingleObject( HANDLE signal, HANDLE wait,
BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
select_op_t select_op;
UINT flags = SELECT_INTERRUPTIBLE;
if (!signal) return STATUS_INVALID_HANDLE;
if (alertable) flags |= SELECT_ALERTABLE;
select_op.signal_and_wait.op = SELECT_SIGNAL_AND_WAIT;
select_op.signal_and_wait.wait = wine_server_obj_handle( wait );
select_op.signal_and_wait.signal = wine_server_obj_handle( signal );
return server_wait( &select_op, sizeof(select_op.signal_and_wait), flags, timeout );
}
/******************************************************************
* NtYieldExecution (NTDLL.@)
*/
NTSTATUS WINAPI NtYieldExecution(void)
{
#ifdef HAVE_SCHED_YIELD
sched_yield();
return STATUS_SUCCESS;
#else
return STATUS_NO_YIELD_PERFORMED;
#endif
}
/******************************************************************
* NtDelayExecution (NTDLL.@)
*/
NTSTATUS WINAPI NtDelayExecution( BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
/* if alertable, we need to query the server */
if (alertable) return server_wait( NULL, 0, SELECT_INTERRUPTIBLE | SELECT_ALERTABLE, timeout );
if (!timeout || timeout->QuadPart == TIMEOUT_INFINITE) /* sleep forever */
{
for (;;) select( 0, NULL, NULL, NULL, NULL );
}
else
{
LARGE_INTEGER now;
timeout_t when, diff;
if ((when = timeout->QuadPart) < 0)
{
NtQuerySystemTime( &now );
when = now.QuadPart - when;
}
/* Note that we yield after establishing the desired timeout */
NtYieldExecution();
if (!when) return STATUS_SUCCESS;
for (;;)
{
struct timeval tv;
NtQuerySystemTime( &now );
diff = (when - now.QuadPart + 9) / 10;
if (diff <= 0) break;
tv.tv_sec = diff / 1000000;
tv.tv_usec = diff % 1000000;
if (select( 0, NULL, NULL, NULL, &tv ) != -1) break;
}
}
return STATUS_SUCCESS;
}
/******************************************************************************
* NtQueryPerformanceCounter (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryPerformanceCounter( LARGE_INTEGER *counter, LARGE_INTEGER *frequency )
{
counter->QuadPart = monotonic_counter();
if (frequency) frequency->QuadPart = TICKSPERSEC;
return STATUS_SUCCESS;
}
/***********************************************************************
* NtQuerySystemTime (NTDLL.@)
*/
NTSTATUS WINAPI NtQuerySystemTime( LARGE_INTEGER *time )
{
#ifdef HAVE_CLOCK_GETTIME
struct timespec ts;
static clockid_t clock_id = CLOCK_MONOTONIC; /* placeholder */
if (clock_id == CLOCK_MONOTONIC)
{
#ifdef CLOCK_REALTIME_COARSE
struct timespec res;
/* Use CLOCK_REALTIME_COARSE if it has 1 ms or better resolution */
if (!clock_getres( CLOCK_REALTIME_COARSE, &res ) && res.tv_sec == 0 && res.tv_nsec <= 1000000)
clock_id = CLOCK_REALTIME_COARSE;
else
#endif /* CLOCK_REALTIME_COARSE */
clock_id = CLOCK_REALTIME;
}
if (!clock_gettime( clock_id, &ts ))
{
time->QuadPart = ts.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
time->QuadPart += (ts.tv_nsec + 50) / 100;
}
else
#endif /* HAVE_CLOCK_GETTIME */
{
struct timeval now;
gettimeofday( &now, 0 );
time->QuadPart = now.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
time->QuadPart += now.tv_usec * 10;
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtSetSystemTime (NTDLL.@)
*/
NTSTATUS WINAPI NtSetSystemTime( const LARGE_INTEGER *new, LARGE_INTEGER *old )
{
LARGE_INTEGER now;
LONGLONG diff;
NtQuerySystemTime( &now );
if (old) *old = now;
diff = new->QuadPart - now.QuadPart;
if (diff > -TICKSPERSEC / 2 && diff < TICKSPERSEC / 2) return STATUS_SUCCESS;
ERR( "not allowed: difference %d ms\n", (int)(diff / 10000) );
return STATUS_PRIVILEGE_NOT_HELD;
}
/***********************************************************************
* NtQueryTimerResolution (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryTimerResolution( ULONG *min_res, ULONG *max_res, ULONG *current_res )
{
FIXME( "(%p,%p,%p), stub!\n", min_res, max_res, current_res );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtSetTimerResolution (NTDLL.@)
*/
NTSTATUS WINAPI NtSetTimerResolution( ULONG res, BOOLEAN set, ULONG *current_res )
{
FIXME( "(%u,%u,%p), stub!\n", res, set, current_res );
return STATUS_NOT_IMPLEMENTED;
}
/******************************************************************************
* NtSetIntervalProfile (NTDLL.@)
*/
NTSTATUS WINAPI NtSetIntervalProfile( ULONG interval, KPROFILE_SOURCE source )
{
FIXME( "%u,%d\n", interval, source );
return STATUS_SUCCESS;
}
/******************************************************************************
* NtGetTickCount (NTDLL.@)
*/
ULONG WINAPI NtGetTickCount(void)
{
/* note: we ignore TickCountMultiplier */
return user_shared_data->u.TickCount.LowPart;
}
/******************************************************************************
* RtlGetSystemTimePrecise (NTDLL.@)
*/
LONGLONG WINAPI RtlGetSystemTimePrecise(void)
{
struct timeval now;
#ifdef HAVE_CLOCK_GETTIME
struct timespec ts;
if (!clock_gettime( CLOCK_REALTIME, &ts ))
return ts.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970 + (ts.tv_nsec + 50) / 100;
#endif
gettimeofday( &now, 0 );
return now.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970 + now.tv_usec * 10;
}
/******************************************************************************
* NtCreateKeyedEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateKeyedEvent( HANDLE *handle, ACCESS_MASK access,
const OBJECT_ATTRIBUTES *attr, ULONG flags )
{
NTSTATUS ret;
data_size_t len;
struct object_attributes *objattr;
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_keyed_event )
{
req->access = access;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/******************************************************************************
* NtOpenKeyedEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenKeyedEvent( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_keyed_event )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtWaitForKeyedEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtWaitForKeyedEvent( HANDLE handle, const void *key,
BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
select_op_t select_op;
UINT flags = SELECT_INTERRUPTIBLE;
if (!handle) handle = keyed_event;
if ((ULONG_PTR)key & 1) return STATUS_INVALID_PARAMETER_1;
if (alertable) flags |= SELECT_ALERTABLE;
select_op.keyed_event.op = SELECT_KEYED_EVENT_WAIT;
select_op.keyed_event.handle = wine_server_obj_handle( handle );
select_op.keyed_event.key = wine_server_client_ptr( key );
return server_wait( &select_op, sizeof(select_op.keyed_event), flags, timeout );
}
/******************************************************************************
* NtReleaseKeyedEvent (NTDLL.@)
*/
NTSTATUS WINAPI NtReleaseKeyedEvent( HANDLE handle, const void *key,
BOOLEAN alertable, const LARGE_INTEGER *timeout )
{
select_op_t select_op;
UINT flags = SELECT_INTERRUPTIBLE;
if (!handle) handle = keyed_event;
if ((ULONG_PTR)key & 1) return STATUS_INVALID_PARAMETER_1;
if (alertable) flags |= SELECT_ALERTABLE;
select_op.keyed_event.op = SELECT_KEYED_EVENT_RELEASE;
select_op.keyed_event.handle = wine_server_obj_handle( handle );
select_op.keyed_event.key = wine_server_client_ptr( key );
return server_wait( &select_op, sizeof(select_op.keyed_event), flags, timeout );
}
/***********************************************************************
* NtCreateIoCompletion (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateIoCompletion( HANDLE *handle, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr,
ULONG threads )
{
NTSTATUS status;
data_size_t len;
struct object_attributes *objattr;
TRACE( "(%p, %x, %p, %d)\n", handle, access, attr, threads );
if (!handle) return STATUS_INVALID_PARAMETER;
if ((status = alloc_object_attributes( attr, &objattr, &len ))) return status;
SERVER_START_REQ( create_completion )
{
req->access = access;
req->concurrent = threads;
wine_server_add_data( req, objattr, len );
if (!(status = wine_server_call( req ))) *handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return status;
}
/***********************************************************************
* NtOpenIoCompletion (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenIoCompletion( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS status;
if (!handle) return STATUS_INVALID_PARAMETER;
if ((status = validate_open_object_attributes( attr ))) return status;
SERVER_START_REQ( open_completion )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
status = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return status;
}
/***********************************************************************
* NtSetIoCompletion (NTDLL.@)
*/
NTSTATUS WINAPI NtSetIoCompletion( HANDLE handle, ULONG_PTR key, ULONG_PTR value,
NTSTATUS status, SIZE_T count )
{
NTSTATUS ret;
TRACE( "(%p, %lx, %lx, %x, %lx)\n", handle, key, value, status, count );
SERVER_START_REQ( add_completion )
{
req->handle = wine_server_obj_handle( handle );
req->ckey = key;
req->cvalue = value;
req->status = status;
req->information = count;
ret = wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* NtRemoveIoCompletion (NTDLL.@)
*/
NTSTATUS WINAPI NtRemoveIoCompletion( HANDLE handle, ULONG_PTR *key, ULONG_PTR *value,
IO_STATUS_BLOCK *io, LARGE_INTEGER *timeout )
{
NTSTATUS status;
TRACE( "(%p, %p, %p, %p, %p)\n", handle, key, value, io, timeout );
for (;;)
{
SERVER_START_REQ( remove_completion )
{
req->handle = wine_server_obj_handle( handle );
if (!(status = wine_server_call( req )))
{
*key = reply->ckey;
*value = reply->cvalue;
io->Information = reply->information;
io->u.Status = reply->status;
}
}
SERVER_END_REQ;
if (status != STATUS_PENDING) return status;
status = NtWaitForSingleObject( handle, FALSE, timeout );
if (status != WAIT_OBJECT_0) return status;
}
}
/***********************************************************************
* NtRemoveIoCompletionEx (NTDLL.@)
*/
NTSTATUS WINAPI NtRemoveIoCompletionEx( HANDLE handle, FILE_IO_COMPLETION_INFORMATION *info, ULONG count,
ULONG *written, LARGE_INTEGER *timeout, BOOLEAN alertable )
{
NTSTATUS status;
ULONG i = 0;
TRACE( "%p %p %u %p %p %u\n", handle, info, count, written, timeout, alertable );
for (;;)
{
while (i < count)
{
SERVER_START_REQ( remove_completion )
{
req->handle = wine_server_obj_handle( handle );
if (!(status = wine_server_call( req )))
{
info[i].CompletionKey = reply->ckey;
info[i].CompletionValue = reply->cvalue;
info[i].IoStatusBlock.Information = reply->information;
info[i].IoStatusBlock.u.Status = reply->status;
}
}
SERVER_END_REQ;
if (status != STATUS_SUCCESS) break;
++i;
}
if (i || status != STATUS_PENDING)
{
if (status == STATUS_PENDING) status = STATUS_SUCCESS;
break;
}
status = NtWaitForSingleObject( handle, alertable, timeout );
if (status != WAIT_OBJECT_0) break;
}
*written = i ? i : 1;
return status;
}
/***********************************************************************
* NtQueryIoCompletion (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryIoCompletion( HANDLE handle, IO_COMPLETION_INFORMATION_CLASS class,
void *buffer, ULONG len, ULONG *ret_len )
{
NTSTATUS status;
TRACE( "(%p, %d, %p, 0x%x, %p)\n", handle, class, buffer, len, ret_len );
if (!buffer) return STATUS_INVALID_PARAMETER;
switch (class)
{
case IoCompletionBasicInformation:
{
ULONG *info = buffer;
if (ret_len) *ret_len = sizeof(*info);
if (len == sizeof(*info))
{
SERVER_START_REQ( query_completion )
{
req->handle = wine_server_obj_handle( handle );
if (!(status = wine_server_call( req ))) *info = reply->depth;
}
SERVER_END_REQ;
}
else status = STATUS_INFO_LENGTH_MISMATCH;
break;
}
default:
return STATUS_INVALID_PARAMETER;
}
return status;
}
/***********************************************************************
* NtCreateSection (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
const LARGE_INTEGER *size, ULONG protect,
ULONG sec_flags, HANDLE file )
{
NTSTATUS ret;
unsigned int file_access;
data_size_t len;
struct object_attributes *objattr;
switch (protect & 0xff)
{
case PAGE_READONLY:
case PAGE_EXECUTE_READ:
case PAGE_WRITECOPY:
case PAGE_EXECUTE_WRITECOPY:
file_access = FILE_READ_DATA;
break;
case PAGE_READWRITE:
case PAGE_EXECUTE_READWRITE:
if (sec_flags & SEC_IMAGE) file_access = FILE_READ_DATA;
else file_access = FILE_READ_DATA | FILE_WRITE_DATA;
break;
case PAGE_EXECUTE:
case PAGE_NOACCESS:
file_access = 0;
break;
default:
return STATUS_INVALID_PAGE_PROTECTION;
}
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
SERVER_START_REQ( create_mapping )
{
req->access = access;
req->flags = sec_flags;
req->file_handle = wine_server_obj_handle( file );
req->file_access = file_access;
req->size = size ? size->QuadPart : 0;
wine_server_add_data( req, objattr, len );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
free( objattr );
return ret;
}
/***********************************************************************
* NtOpenSection (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
{
NTSTATUS ret;
if ((ret = validate_open_object_attributes( attr ))) return ret;
SERVER_START_REQ( open_mapping )
{
req->access = access;
req->attributes = attr->Attributes;
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
if (attr->ObjectName)
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* NtCreatePort (NTDLL.@)
*/
NTSTATUS WINAPI NtCreatePort( HANDLE *handle, OBJECT_ATTRIBUTES *attr, ULONG info_len,
ULONG data_len, ULONG *reserved )
{
FIXME( "(%p,%p,%u,%u,%p),stub!\n", handle, attr, info_len, data_len, reserved );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtConnectPort (NTDLL.@)
*/
NTSTATUS WINAPI NtConnectPort( HANDLE *handle, UNICODE_STRING *name, SECURITY_QUALITY_OF_SERVICE *qos,
LPC_SECTION_WRITE *write, LPC_SECTION_READ *read, ULONG *max_len,
void *info, ULONG *info_len )
{
FIXME( "(%p,%s,%p,%p,%p,%p,%p,%p),stub!\n", handle, debugstr_us(name), qos,
write, read, max_len, info, info_len );
if (info && info_len) TRACE("msg = %s\n", debugstr_an( info, *info_len ));
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtSecureConnectPort (NTDLL.@)
*/
NTSTATUS WINAPI NtSecureConnectPort( HANDLE *handle, UNICODE_STRING *name, SECURITY_QUALITY_OF_SERVICE *qos,
LPC_SECTION_WRITE *write, PSID sid, LPC_SECTION_READ *read,
ULONG *max_len, void *info, ULONG *info_len )
{
FIXME( "(%p,%s,%p,%p,%p,%p,%p,%p,%p),stub!\n", handle, debugstr_us(name), qos,
write, sid, read, max_len, info, info_len );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtListenPort (NTDLL.@)
*/
NTSTATUS WINAPI NtListenPort( HANDLE handle, LPC_MESSAGE *msg )
{
FIXME("(%p,%p),stub!\n", handle, msg );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtAcceptConnectPort (NTDLL.@)
*/
NTSTATUS WINAPI NtAcceptConnectPort( HANDLE *handle, ULONG id, LPC_MESSAGE *msg, BOOLEAN accept,
LPC_SECTION_WRITE *write, LPC_SECTION_READ *read )
{
FIXME("(%p,%u,%p,%d,%p,%p),stub!\n", handle, id, msg, accept, write, read );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtCompleteConnectPort (NTDLL.@)
*/
NTSTATUS WINAPI NtCompleteConnectPort( HANDLE handle )
{
FIXME( "(%p),stub!\n", handle );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtRegisterThreadTerminatePort (NTDLL.@)
*/
NTSTATUS WINAPI NtRegisterThreadTerminatePort( HANDLE handle )
{
FIXME( "(%p),stub!\n", handle );
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtRequestWaitReplyPort (NTDLL.@)
*/
NTSTATUS WINAPI NtRequestWaitReplyPort( HANDLE handle, LPC_MESSAGE *msg_in, LPC_MESSAGE *msg_out )
{
FIXME( "(%p,%p,%p),stub!\n", handle, msg_in, msg_out );
if (msg_in)
TRACE("datasize %u msgsize %u type %u ranges %u client %p/%p msgid %lu size %lu data %s\n",
msg_in->DataSize, msg_in->MessageSize, msg_in->MessageType, msg_in->VirtualRangesOffset,
msg_in->ClientId.UniqueProcess, msg_in->ClientId.UniqueThread, msg_in->MessageId,
msg_in->SectionSize, debugstr_an( (const char *)msg_in->Data, msg_in->DataSize ));
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* NtReplyWaitReceivePort (NTDLL.@)
*/
NTSTATUS WINAPI NtReplyWaitReceivePort( HANDLE handle, ULONG *id, LPC_MESSAGE *reply, LPC_MESSAGE *msg )
{
FIXME("(%p,%p,%p,%p),stub!\n", handle, id, reply, msg );
return STATUS_NOT_IMPLEMENTED;
}
#define MAX_ATOM_LEN 255
#define IS_INTATOM(x) (((ULONG_PTR)(x) >> 16) == 0)
static NTSTATUS is_integral_atom( const WCHAR *atomstr, ULONG len, RTL_ATOM *ret_atom )
{
RTL_ATOM atom;
if ((ULONG_PTR)atomstr >> 16)
{
const WCHAR* ptr = atomstr;
if (!len) return STATUS_OBJECT_NAME_INVALID;
if (*ptr++ == '#')
{
atom = 0;
while (ptr < atomstr + len && *ptr >= '0' && *ptr <= '9')
{
atom = atom * 10 + *ptr++ - '0';
}
if (ptr > atomstr + 1 && ptr == atomstr + len) goto done;
}
if (len > MAX_ATOM_LEN) return STATUS_INVALID_PARAMETER;
return STATUS_MORE_ENTRIES;
}
else atom = LOWORD( atomstr );
done:
if (!atom || atom >= MAXINTATOM) return STATUS_INVALID_PARAMETER;
*ret_atom = atom;
return STATUS_SUCCESS;
}
static ULONG integral_atom_name( WCHAR *buffer, ULONG len, RTL_ATOM atom )
{
char tmp[16];
int ret = sprintf( tmp, "#%u", atom );
len /= sizeof(WCHAR);
if (len)
{
if (len <= ret) ret = len - 1;
ascii_to_unicode( buffer, tmp, ret );
buffer[ret] = 0;
}
return ret * sizeof(WCHAR);
}
/***********************************************************************
* NtAddAtom (NTDLL.@)
*/
NTSTATUS WINAPI NtAddAtom( const WCHAR *name, ULONG length, RTL_ATOM *atom )
{
NTSTATUS status = is_integral_atom( name, length / sizeof(WCHAR), atom );
if (status == STATUS_MORE_ENTRIES)
{
SERVER_START_REQ( add_atom )
{
wine_server_add_data( req, name, length );
req->table = 0;
status = wine_server_call( req );
*atom = reply->atom;
}
SERVER_END_REQ;
}
TRACE( "%s -> %x\n", debugstr_wn(name, length/sizeof(WCHAR)), status == STATUS_SUCCESS ? *atom : 0 );
return status;
}
/***********************************************************************
* NtDeleteAtom (NTDLL.@)
*/
NTSTATUS WINAPI NtDeleteAtom( RTL_ATOM atom )
{
NTSTATUS status;
SERVER_START_REQ( delete_atom )
{
req->atom = atom;
req->table = 0;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
/***********************************************************************
* NtFindAtom (NTDLL.@)
*/
NTSTATUS WINAPI NtFindAtom( const WCHAR *name, ULONG length, RTL_ATOM *atom )
{
NTSTATUS status = is_integral_atom( name, length / sizeof(WCHAR), atom );
if (status == STATUS_MORE_ENTRIES)
{
SERVER_START_REQ( find_atom )
{
wine_server_add_data( req, name, length );
req->table = 0;
status = wine_server_call( req );
*atom = reply->atom;
}
SERVER_END_REQ;
}
TRACE( "%s -> %x\n", debugstr_wn(name, length/sizeof(WCHAR)), status == STATUS_SUCCESS ? *atom : 0 );
return status;
}
/***********************************************************************
* NtQueryInformationAtom (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryInformationAtom( RTL_ATOM atom, ATOM_INFORMATION_CLASS class,
void *ptr, ULONG size, ULONG *retsize )
{
NTSTATUS status;
switch (class)
{
case AtomBasicInformation:
{
ULONG name_len;
ATOM_BASIC_INFORMATION *abi = ptr;
if (size < sizeof(ATOM_BASIC_INFORMATION)) return STATUS_INVALID_PARAMETER;
name_len = size - sizeof(ATOM_BASIC_INFORMATION);
if (atom < MAXINTATOM)
{
if (atom)
{
abi->NameLength = integral_atom_name( abi->Name, name_len, atom );
status = name_len ? STATUS_SUCCESS : STATUS_BUFFER_TOO_SMALL;
abi->ReferenceCount = 1;
abi->Pinned = 1;
}
else status = STATUS_INVALID_PARAMETER;
}
else
{
SERVER_START_REQ( get_atom_information )
{
req->atom = atom;
if (name_len) wine_server_set_reply( req, abi->Name, name_len );
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
name_len = wine_server_reply_size( reply );
if (name_len)
{
abi->NameLength = name_len;
abi->Name[name_len / sizeof(WCHAR)] = 0;
}
else
{
name_len = reply->total;
abi->NameLength = name_len;
status = STATUS_BUFFER_TOO_SMALL;
}
abi->ReferenceCount = reply->count;
abi->Pinned = reply->pinned;
}
else name_len = 0;
}
SERVER_END_REQ;
}
TRACE( "%x -> %s (%u)\n", atom, debugstr_wn(abi->Name, abi->NameLength / sizeof(WCHAR)), status );
if (retsize) *retsize = sizeof(ATOM_BASIC_INFORMATION) + name_len;
break;
}
default:
FIXME( "Unsupported class %u\n", class );
status = STATUS_INVALID_INFO_CLASS;
break;
}
return status;
}
#ifdef __linux__
NTSTATUS CDECL fast_RtlpWaitForCriticalSection( RTL_CRITICAL_SECTION *crit, int timeout )
{
int val;
struct timespec timespec;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
timespec.tv_sec = timeout;
timespec.tv_nsec = 0;
while ((val = InterlockedCompareExchange( (int *)&crit->LockSemaphore, 0, 1 )) != 1)
{
/* note: this may wait longer than specified in case of signals or */
/* multiple wake-ups, but that shouldn't be a problem */
if (futex_wait( (int *)&crit->LockSemaphore, val, &timespec ) == -1 && errno == ETIMEDOUT)
return STATUS_TIMEOUT;
}
return STATUS_WAIT_0;
}
NTSTATUS CDECL fast_RtlpUnWaitCriticalSection( RTL_CRITICAL_SECTION *crit )
{
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
*(int *)&crit->LockSemaphore = 1;
futex_wake( (int *)&crit->LockSemaphore, 1 );
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_RtlDeleteCriticalSection( RTL_CRITICAL_SECTION *crit )
{
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
return STATUS_SUCCESS;
}
#elif defined(__APPLE__)
static inline semaphore_t get_mach_semaphore( RTL_CRITICAL_SECTION *crit )
{
semaphore_t ret = *(int *)&crit->LockSemaphore;
if (!ret)
{
semaphore_t sem;
if (semaphore_create( mach_task_self(), &sem, SYNC_POLICY_FIFO, 0 )) return 0;
if (!(ret = InterlockedCompareExchange( (int *)&crit->LockSemaphore, sem, 0 )))
ret = sem;
else
semaphore_destroy( mach_task_self(), sem ); /* somebody beat us to it */
}
return ret;
}
NTSTATUS CDECL fast_RtlpWaitForCriticalSection( RTL_CRITICAL_SECTION *crit, int timeout )
{
mach_timespec_t timespec;
semaphore_t sem = get_mach_semaphore( crit );
timespec.tv_sec = timeout;
timespec.tv_nsec = 0;
for (;;)
{
switch( semaphore_timedwait( sem, timespec ))
{
case KERN_SUCCESS:
return STATUS_WAIT_0;
case KERN_ABORTED:
continue; /* got a signal, restart */
case KERN_OPERATION_TIMED_OUT:
return STATUS_TIMEOUT;
default:
return STATUS_INVALID_HANDLE;
}
}
}
NTSTATUS CDECL fast_RtlpUnWaitCriticalSection( RTL_CRITICAL_SECTION *crit )
{
semaphore_t sem = get_mach_semaphore( crit );
semaphore_signal( sem );
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_RtlDeleteCriticalSection( RTL_CRITICAL_SECTION *crit )
{
semaphore_destroy( mach_task_self(), *(int *)&crit->LockSemaphore );
return STATUS_SUCCESS;
}
#else /* __APPLE__ */
NTSTATUS CDECL fast_RtlpWaitForCriticalSection( RTL_CRITICAL_SECTION *crit, int timeout )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlpUnWaitCriticalSection( RTL_CRITICAL_SECTION *crit )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlDeleteCriticalSection( RTL_CRITICAL_SECTION *crit )
{
return STATUS_NOT_IMPLEMENTED;
}
#endif
#ifdef __linux__
/* Futex-based SRW lock implementation:
*
* Since we can rely on the kernel to release all threads and don't need to
* worry about NtReleaseKeyedEvent(), we can simplify the layout a bit. The
* layout looks like this:
*
* 31 - Exclusive lock bit, set if the resource is owned exclusively.
* 30-16 - Number of exclusive waiters. Unlike the fallback implementation,
* this does not include the thread owning the lock, or shared threads
* waiting on the lock.
* 15 - Does this lock have any shared waiters? We use this as an
* optimization to avoid unnecessary FUTEX_WAKE_BITSET calls when
* releasing an exclusive lock.
* 14-0 - Number of shared owners. Unlike the fallback implementation, this
* does not include the number of shared threads waiting on the lock.
* Thus the state [1, x, >=1] will never occur.
*/
#define SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT 0x80000000
#define SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK 0x7fff0000
#define SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_INC 0x00010000
#define SRWLOCK_FUTEX_SHARED_WAITERS_BIT 0x00008000
#define SRWLOCK_FUTEX_SHARED_OWNERS_MASK 0x00007fff
#define SRWLOCK_FUTEX_SHARED_OWNERS_INC 0x00000001
/* Futex bitmasks; these are independent from the bits in the lock itself. */
#define SRWLOCK_FUTEX_BITSET_EXCLUSIVE 1
#define SRWLOCK_FUTEX_BITSET_SHARED 2
NTSTATUS CDECL fast_RtlTryAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
{
int old, new, *futex;
NTSTATUS ret;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
do
{
old = *futex;
if (!(old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT)
&& !(old & SRWLOCK_FUTEX_SHARED_OWNERS_MASK))
{
/* Not locked exclusive or shared. We can try to grab it. */
new = old | SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT;
ret = STATUS_SUCCESS;
}
else
{
new = old;
ret = STATUS_TIMEOUT;
}
} while (InterlockedCompareExchange( futex, new, old ) != old);
return ret;
}
NTSTATUS CDECL fast_RtlAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
{
int old, new, *futex;
BOOLEAN wait;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
/* Atomically increment the exclusive waiter count. */
do
{
old = *futex;
new = old + SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_INC;
assert(new & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK);
} while (InterlockedCompareExchange( futex, new, old ) != old);
for (;;)
{
do
{
old = *futex;
if (!(old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT)
&& !(old & SRWLOCK_FUTEX_SHARED_OWNERS_MASK))
{
/* Not locked exclusive or shared. We can try to grab it. */
new = old | SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT;
assert(old & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK);
new -= SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_INC;
wait = FALSE;
}
else
{
new = old;
wait = TRUE;
}
} while (InterlockedCompareExchange( futex, new, old ) != old);
if (!wait)
return STATUS_SUCCESS;
futex_wait_bitset( futex, new, NULL, SRWLOCK_FUTEX_BITSET_EXCLUSIVE );
}
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_RtlTryAcquireSRWLockShared( RTL_SRWLOCK *lock )
{
int new, old, *futex;
NTSTATUS ret;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
do
{
old = *futex;
if (!(old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT)
&& !(old & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK))
{
/* Not locked exclusive, and no exclusive waiters. We can try to
* grab it. */
new = old + SRWLOCK_FUTEX_SHARED_OWNERS_INC;
assert(new & SRWLOCK_FUTEX_SHARED_OWNERS_MASK);
ret = STATUS_SUCCESS;
}
else
{
new = old;
ret = STATUS_TIMEOUT;
}
} while (InterlockedCompareExchange( futex, new, old ) != old);
return ret;
}
NTSTATUS CDECL fast_RtlAcquireSRWLockShared( RTL_SRWLOCK *lock )
{
int old, new, *futex;
BOOLEAN wait;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
for (;;)
{
do
{
old = *futex;
if (!(old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT)
&& !(old & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK))
{
/* Not locked exclusive, and no exclusive waiters. We can try
* to grab it. */
new = old + SRWLOCK_FUTEX_SHARED_OWNERS_INC;
assert(new & SRWLOCK_FUTEX_SHARED_OWNERS_MASK);
wait = FALSE;
}
else
{
new = old | SRWLOCK_FUTEX_SHARED_WAITERS_BIT;
wait = TRUE;
}
} while (InterlockedCompareExchange( futex, new, old ) != old);
if (!wait)
return STATUS_SUCCESS;
futex_wait_bitset( futex, new, NULL, SRWLOCK_FUTEX_BITSET_SHARED );
}
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_RtlReleaseSRWLockExclusive( RTL_SRWLOCK *lock )
{
int old, new, *futex;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
do
{
old = *futex;
if (!(old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT))
{
ERR("Lock %p is not owned exclusive! (%#x)\n", lock, *futex);
return STATUS_RESOURCE_NOT_OWNED;
}
new = old & ~SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT;
if (!(new & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK))
new &= ~SRWLOCK_FUTEX_SHARED_WAITERS_BIT;
} while (InterlockedCompareExchange( futex, new, old ) != old);
if (new & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK)
futex_wake_bitset( futex, 1, SRWLOCK_FUTEX_BITSET_EXCLUSIVE );
else if (old & SRWLOCK_FUTEX_SHARED_WAITERS_BIT)
futex_wake_bitset( futex, INT_MAX, SRWLOCK_FUTEX_BITSET_SHARED );
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_RtlReleaseSRWLockShared( RTL_SRWLOCK *lock )
{
int old, new, *futex;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &lock->Ptr )))
return STATUS_NOT_IMPLEMENTED;
do
{
old = *futex;
if (old & SRWLOCK_FUTEX_EXCLUSIVE_LOCK_BIT)
{
ERR("Lock %p is owned exclusive! (%#x)\n", lock, *futex);
return STATUS_RESOURCE_NOT_OWNED;
}
else if (!(old & SRWLOCK_FUTEX_SHARED_OWNERS_MASK))
{
ERR("Lock %p is not owned shared! (%#x)\n", lock, *futex);
return STATUS_RESOURCE_NOT_OWNED;
}
new = old - SRWLOCK_FUTEX_SHARED_OWNERS_INC;
} while (InterlockedCompareExchange( futex, new, old ) != old);
/* Optimization: only bother waking if there are actually exclusive waiters. */
if (!(new & SRWLOCK_FUTEX_SHARED_OWNERS_MASK) && (new & SRWLOCK_FUTEX_EXCLUSIVE_WAITERS_MASK))
futex_wake_bitset( futex, 1, SRWLOCK_FUTEX_BITSET_EXCLUSIVE );
return STATUS_SUCCESS;
}
NTSTATUS CDECL fast_wait_cv( RTL_CONDITION_VARIABLE *variable, const void *value, const LARGE_INTEGER *timeout )
{
const char *value_ptr;
int aligned_value, *futex;
struct timespec timespec;
int ret;
if (!use_futexes())
return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &variable->Ptr )))
return STATUS_NOT_IMPLEMENTED;
value_ptr = (const char *)&value;
value_ptr += ((ULONG_PTR)futex) - ((ULONG_PTR)&variable->Ptr);
aligned_value = *(int *)value_ptr;
if (timeout && timeout->QuadPart != TIMEOUT_INFINITE)
{
timespec_from_timeout( &timespec, timeout );
ret = futex_wait( futex, aligned_value, &timespec );
}
else
ret = futex_wait( futex, aligned_value, NULL );
if (ret == -1 && errno == ETIMEDOUT)
return STATUS_TIMEOUT;
return STATUS_WAIT_0;
}
NTSTATUS CDECL fast_RtlWakeConditionVariable( RTL_CONDITION_VARIABLE *variable, int count )
{
int *futex;
if (!use_futexes()) return STATUS_NOT_IMPLEMENTED;
if (!(futex = get_futex( &variable->Ptr )))
return STATUS_NOT_IMPLEMENTED;
InterlockedIncrement( futex );
futex_wake( futex, count );
return STATUS_SUCCESS;
}
/* We can't map addresses to futex directly, because an application can wait on
* 8 bytes, and we can't pass all 8 as the compare value to futex(). Instead we
* map all addresses to a small fixed table of futexes. This may result in
* spurious wakes, but the application is already expected to handle those. */
static int addr_futex_table[256];
static inline int *hash_addr( const void *addr )
{
ULONG_PTR val = (ULONG_PTR)addr;
return &addr_futex_table[(val >> 2) & 255];
}
static inline NTSTATUS fast_wait_addr( const void *addr, const void *cmp, SIZE_T size,
const LARGE_INTEGER *timeout )
{
int *futex;
int val;
struct timespec timespec;
int ret;
if (!use_futexes())
return STATUS_NOT_IMPLEMENTED;
futex = hash_addr( addr );
/* We must read the previous value of the futex before checking the value
* of the address being waited on. That way, if we receive a wake between
* now and waiting on the futex, we know that val will have changed.
* Use an atomic load so that memory accesses are ordered between this read
* and the increment below. */
val = InterlockedCompareExchange( futex, 0, 0 );
if (!compare_addr( addr, cmp, size ))
return STATUS_SUCCESS;
if (timeout)
{
timespec_from_timeout( &timespec, timeout );
ret = futex_wait( futex, val, &timespec );
}
else
ret = futex_wait( futex, val, NULL );
if (ret == -1 && errno == ETIMEDOUT)
return STATUS_TIMEOUT;
return STATUS_SUCCESS;
}
static inline NTSTATUS fast_wake_addr( const void *addr )
{
int *futex;
if (!use_futexes())
return STATUS_NOT_IMPLEMENTED;
futex = hash_addr( addr );
InterlockedIncrement( futex );
futex_wake( futex, INT_MAX );
return STATUS_SUCCESS;
}
#else
NTSTATUS CDECL fast_RtlTryAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlAcquireSRWLockExclusive( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlTryAcquireSRWLockShared( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlAcquireSRWLockShared( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlReleaseSRWLockExclusive( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlReleaseSRWLockShared( RTL_SRWLOCK *lock )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_RtlWakeConditionVariable( RTL_CONDITION_VARIABLE *variable, int count )
{
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS CDECL fast_wait_cv( RTL_CONDITION_VARIABLE *variable, const void *value, const LARGE_INTEGER *timeout )
{
return STATUS_NOT_IMPLEMENTED;
}
static inline NTSTATUS fast_wait_addr( const void *addr, const void *cmp, SIZE_T size,
const LARGE_INTEGER *timeout )
{
return STATUS_NOT_IMPLEMENTED;
}
static inline NTSTATUS fast_wake_addr( const void *addr )
{
return STATUS_NOT_IMPLEMENTED;
}
#endif
/***********************************************************************
* RtlWaitOnAddress (NTDLL.@)
*/
NTSTATUS WINAPI RtlWaitOnAddress( const void *addr, const void *cmp, SIZE_T size,
const LARGE_INTEGER *timeout )
{
select_op_t select_op;
NTSTATUS ret;
timeout_t abs_timeout = timeout ? timeout->QuadPart : TIMEOUT_INFINITE;
if (size != 1 && size != 2 && size != 4 && size != 8)
return STATUS_INVALID_PARAMETER;
if ((ret = fast_wait_addr( addr, cmp, size, timeout )) != STATUS_NOT_IMPLEMENTED)
return ret;
mutex_lock( &addr_mutex );
if (!compare_addr( addr, cmp, size ))
{
mutex_unlock( &addr_mutex );
return STATUS_SUCCESS;
}
if (abs_timeout < 0)
{
LARGE_INTEGER now;
NtQueryPerformanceCounter( &now, NULL );
abs_timeout -= now.QuadPart;
}
select_op.keyed_event.op = SELECT_KEYED_EVENT_WAIT;
select_op.keyed_event.handle = wine_server_obj_handle( keyed_event );
select_op.keyed_event.key = wine_server_client_ptr( addr );
return server_select( &select_op, sizeof(select_op.keyed_event), SELECT_INTERRUPTIBLE,
abs_timeout, NULL, &addr_mutex, NULL );
}
/***********************************************************************
* RtlWakeAddressAll (NTDLL.@)
*/
void WINAPI RtlWakeAddressAll( const void *addr )
{
if (fast_wake_addr( addr ) != STATUS_NOT_IMPLEMENTED) return;
mutex_lock( &addr_mutex );
while (NtReleaseKeyedEvent( 0, addr, 0, &zero_timeout ) == STATUS_SUCCESS) {}
mutex_unlock( &addr_mutex );
}
/***********************************************************************
* RtlWakeAddressSingle (NTDLL.@)
*/
void WINAPI RtlWakeAddressSingle( const void *addr )
{
if (fast_wake_addr( addr ) != STATUS_NOT_IMPLEMENTED) return;
mutex_lock( &addr_mutex );
NtReleaseKeyedEvent( 0, addr, 0, &zero_timeout );
mutex_unlock( &addr_mutex );
}
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