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/*
* NT threads support
*
* Copyright 1996, 2003 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 <assert.h>
#include <stdarg.h>
#include <sys/types.h>
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#define NONAMELESSUNION
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "winternl.h"
#include "wine/library.h"
#include "wine/server.h"
#include "wine/debug.h"
#include "ntdll_misc.h"
#include "ddk/wdm.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(thread);
WINE_DECLARE_DEBUG_CHANNEL(relay);
struct _KUSER_SHARED_DATA *user_shared_data = NULL;
PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
/* info passed to a starting thread */
struct startup_info
{
TEB *teb;
PRTL_THREAD_START_ROUTINE entry_point;
void *entry_arg;
};
static PEB_LDR_DATA ldr;
static RTL_USER_PROCESS_PARAMETERS params; /* default parameters if no parent */
static WCHAR current_dir[MAX_NT_PATH_LENGTH];
static RTL_BITMAP tls_bitmap;
static RTL_BITMAP tls_expansion_bitmap;
static RTL_BITMAP fls_bitmap;
static LIST_ENTRY tls_links;
static size_t sigstack_total_size;
static ULONG sigstack_zero_bits;
static int nb_threads = 1;
static RTL_CRITICAL_SECTION ldt_section;
static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &ldt_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
};
static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
static sigset_t ldt_sigset;
/***********************************************************************
* locking for LDT routines
*/
static void ldt_lock(void)
{
sigset_t sigset;
pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
RtlEnterCriticalSection( &ldt_section );
if (ldt_section.RecursionCount == 1) ldt_sigset = sigset;
}
static void ldt_unlock(void)
{
if (ldt_section.RecursionCount == 1)
{
sigset_t sigset = ldt_sigset;
RtlLeaveCriticalSection( &ldt_section );
pthread_sigmask( SIG_SETMASK, &sigset, NULL );
}
else RtlLeaveCriticalSection( &ldt_section );
}
/***********************************************************************
* init_teb
*/
static inline NTSTATUS init_teb( TEB *teb )
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
teb->Tib.ExceptionList = (void *)~0UL;
teb->Tib.StackBase = (void *)~0UL;
teb->Tib.Self = &teb->Tib;
teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
thread_data->request_fd = -1;
thread_data->reply_fd = -1;
thread_data->wait_fd[0] = -1;
thread_data->wait_fd[1] = -1;
return STATUS_SUCCESS;
}
/***********************************************************************
* fix_unicode_string
*
* Make sure the unicode string doesn't point beyond the end pointer
*/
static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr )
{
if ((char *)str->Buffer >= end_ptr)
{
str->Length = str->MaximumLength = 0;
str->Buffer = NULL;
return;
}
if ((char *)str->Buffer + str->MaximumLength > end_ptr)
{
str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
}
if (str->Length >= str->MaximumLength)
{
if (str->MaximumLength >= sizeof(WCHAR))
str->Length = str->MaximumLength - sizeof(WCHAR);
else
str->Length = str->MaximumLength = 0;
}
}
/***********************************************************************
* init_user_process_params
*
* Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
*/
static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
{
void *ptr;
SIZE_T env_size;
NTSTATUS status;
RTL_USER_PROCESS_PARAMETERS *params = NULL;
status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
MEM_COMMIT, PAGE_READWRITE );
if (status != STATUS_SUCCESS) return status;
params->AllocationSize = info_size;
NtCurrentTeb()->Peb->ProcessParameters = params;
SERVER_START_REQ( get_startup_info )
{
wine_server_set_reply( req, params, info_size );
if (!(status = wine_server_call( req )))
{
info_size = wine_server_reply_size( reply );
*exe_file = wine_server_ptr_handle( reply->exe_file );
params->hStdInput = wine_server_ptr_handle( reply->hstdin );
params->hStdOutput = wine_server_ptr_handle( reply->hstdout );
params->hStdError = wine_server_ptr_handle( reply->hstderr );
}
}
SERVER_END_REQ;
if (status != STATUS_SUCCESS) return status;
if (params->Size > info_size) params->Size = info_size;
/* make sure the strings are valid */
fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
fix_unicode_string( &params->DllPath, (char *)info_size );
fix_unicode_string( &params->ImagePathName, (char *)info_size );
fix_unicode_string( &params->CommandLine, (char *)info_size );
fix_unicode_string( &params->WindowTitle, (char *)info_size );
fix_unicode_string( &params->Desktop, (char *)info_size );
fix_unicode_string( &params->ShellInfo, (char *)info_size );
fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
/* environment needs to be a separate memory block */
env_size = info_size - params->Size;
if (!env_size) env_size = 1;
ptr = NULL;
status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
MEM_COMMIT, PAGE_READWRITE );
if (status != STATUS_SUCCESS) return status;
memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
params->Environment = ptr;
RtlNormalizeProcessParams( params );
return status;
}
/***********************************************************************
* thread_init
*
* Setup the initial thread.
*
* NOTES: The first allocated TEB on NT is at 0x7ffde000.
*/
HANDLE thread_init(void)
{
PEB *peb;
TEB *teb;
void *addr;
SIZE_T size, info_size;
HANDLE exe_file = 0;
LARGE_INTEGER now;
struct ntdll_thread_data *thread_data;
static struct debug_info debug_info; /* debug info for initial thread */
virtual_init();
/* reserve space for shared user data */
addr = (void *)0x7ffe0000;
size = 0x10000;
NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
user_shared_data = addr;
/* allocate and initialize the PEB */
addr = NULL;
size = sizeof(*peb);
NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
peb = addr;
peb->NumberOfProcessors = 1;
peb->ProcessParameters = &params;
peb->TlsBitmap = &tls_bitmap;
peb->TlsExpansionBitmap = &tls_expansion_bitmap;
peb->FlsBitmap = &fls_bitmap;
peb->LdrData = &ldr;
params.CurrentDirectory.DosPath.Buffer = current_dir;
params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
params.wShowWindow = 1; /* SW_SHOWNORMAL */
RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
sizeof(peb->TlsExpansionBitmapBits) * 8 );
RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
InitializeListHead( &peb->FlsListHead );
InitializeListHead( &ldr.InLoadOrderModuleList );
InitializeListHead( &ldr.InMemoryOrderModuleList );
InitializeListHead( &ldr.InInitializationOrderModuleList );
InitializeListHead( &tls_links );
/* allocate and initialize the initial TEB */
sigstack_total_size = get_signal_stack_total_size();
while (1U << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
assert( 1U << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */
assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
addr = NULL;
size = sigstack_total_size;
NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
&size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
teb = addr;
teb->Peb = peb;
init_teb( teb );
thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
thread_data->debug_info = &debug_info;
InsertHeadList( &tls_links, &teb->TlsLinks );
signal_init_thread( teb );
virtual_init_threading();
debug_info.str_pos = debug_info.strings;
debug_info.out_pos = debug_info.output;
debug_init();
/* setup the server connection */
server_init_process();
info_size = server_init_thread( peb );
/* create the process heap */
if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
{
MESSAGE( "wine: failed to create the process heap\n" );
exit(1);
}
/* allocate user parameters */
if (info_size)
{
init_user_process_params( info_size, &exe_file );
}
else
{
/* This is wine specific: we have no parent (we're started from unix)
* so, create a simple console with bare handles to unix stdio
*/
wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE, OBJ_INHERIT, &params.hStdInput );
wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
}
/* initialize LDT locking */
wine_ldt_init_locking( ldt_lock, ldt_unlock );
/* initialize time values in user_shared_data */
NtQuerySystemTime( &now );
user_shared_data->SystemTime.LowPart = now.u.LowPart;
user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
user_shared_data->TickCountMultiplier = 1 << 24;
return exe_file;
}
/***********************************************************************
* abort_thread
*/
void abort_thread( int status )
{
pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
close( ntdll_get_thread_data()->wait_fd[0] );
close( ntdll_get_thread_data()->wait_fd[1] );
close( ntdll_get_thread_data()->reply_fd );
close( ntdll_get_thread_data()->request_fd );
pthread_exit( UIntToPtr(status) );
}
/***********************************************************************
* exit_thread
*/
void exit_thread( int status )
{
static void *prev_teb;
TEB *teb;
if (status) /* send the exit code to the server (0 is already the default) */
{
SERVER_START_REQ( terminate_thread )
{
req->handle = wine_server_obj_handle( GetCurrentThread() );
req->exit_code = status;
wine_server_call( req );
}
SERVER_END_REQ;
}
if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
{
LdrShutdownProcess();
exit( status );
}
LdrShutdownThread();
RtlAcquirePebLock();
RemoveEntryList( &NtCurrentTeb()->TlsLinks );
RtlReleasePebLock();
RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
SIZE_T size;
pthread_join( thread_data->pthread_id, NULL );
wine_ldt_free_fs( thread_data->fs );
size = 0;
NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
size = 0;
NtFreeVirtualMemory( GetCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
}
close( ntdll_get_thread_data()->wait_fd[0] );
close( ntdll_get_thread_data()->wait_fd[1] );
close( ntdll_get_thread_data()->reply_fd );
close( ntdll_get_thread_data()->request_fd );
pthread_exit( UIntToPtr(status) );
}
/***********************************************************************
* start_thread
*
* Startup routine for a newly created thread.
*/
static void start_thread( struct startup_info *info )
{
TEB *teb = info->teb;
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
PRTL_THREAD_START_ROUTINE func = info->entry_point;
void *arg = info->entry_arg;
struct debug_info debug_info;
debug_info.str_pos = debug_info.strings;
debug_info.out_pos = debug_info.output;
thread_data->debug_info = &debug_info;
thread_data->pthread_id = pthread_self();
signal_init_thread( teb );
server_init_thread( func );
pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
RtlAcquirePebLock();
InsertHeadList( &tls_links, &teb->TlsLinks );
RtlReleasePebLock();
MODULE_DllThreadAttach( NULL );
if (TRACE_ON(relay))
DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
}
/***********************************************************************
* RtlCreateUserThread (NTDLL.@)
*/
NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
BOOLEAN suspended, PVOID stack_addr,
SIZE_T stack_reserve, SIZE_T stack_commit,
PRTL_THREAD_START_ROUTINE start, void *param,
HANDLE *handle_ptr, CLIENT_ID *id )
{
sigset_t sigset;
pthread_t pthread_id;
pthread_attr_t attr;
struct ntdll_thread_data *thread_data = NULL;
struct ntdll_thread_regs *thread_regs;
struct startup_info *info = NULL;
void *addr = NULL;
HANDLE handle = 0;
TEB *teb;
DWORD tid = 0;
int request_pipe[2];
NTSTATUS status;
SIZE_T size;
if (process != NtCurrentProcess())
{
apc_call_t call;
apc_result_t result;
memset( &call, 0, sizeof(call) );
call.create_thread.type = APC_CREATE_THREAD;
call.create_thread.func = wine_server_client_ptr( start );
call.create_thread.arg = wine_server_client_ptr( param );
call.create_thread.reserve = stack_reserve;
call.create_thread.commit = stack_commit;
call.create_thread.suspend = suspended;
status = NTDLL_queue_process_apc( process, &call, &result );
if (status != STATUS_SUCCESS) return status;
if (result.create_thread.status == STATUS_SUCCESS)
{
if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
}
return result.create_thread.status;
}
if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
wine_server_send_fd( request_pipe[0] );
SERVER_START_REQ( new_thread )
{
req->access = THREAD_ALL_ACCESS;
req->attributes = 0; /* FIXME */
req->suspend = suspended;
req->request_fd = request_pipe[0];
if (!(status = wine_server_call( req )))
{
handle = wine_server_ptr_handle( reply->handle );
tid = reply->tid;
}
close( request_pipe[0] );
}
SERVER_END_REQ;
if (status)
{
close( request_pipe[1] );
return status;
}
pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
addr = NULL;
size = sigstack_total_size;
if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
&size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
goto error;
teb = addr;
teb->Peb = NtCurrentTeb()->Peb;
info = (struct startup_info *)(teb + 1);
info->teb = teb;
info->entry_point = start;
info->entry_arg = param;
if ((status = init_teb( teb ))) goto error;
teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
teb->ClientId.UniqueThread = ULongToHandle(tid);
thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
thread_data->request_fd = request_pipe[1];
/* inherit debug registers from parent thread */
thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
pthread_attr_init( &attr );
pthread_attr_setstack( &attr, teb->DeallocationStack,
(char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
interlocked_xchg_add( &nb_threads, 1 );
if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
{
interlocked_xchg_add( &nb_threads, -1 );
pthread_attr_destroy( &attr );
size = 0;
NtFreeVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
status = STATUS_NO_MEMORY;
goto error;
}
pthread_attr_destroy( &attr );
pthread_sigmask( SIG_SETMASK, &sigset, NULL );
if (id) id->UniqueThread = ULongToHandle(tid);
if (handle_ptr) *handle_ptr = handle;
else NtClose( handle );
return STATUS_SUCCESS;
error:
if (thread_data) wine_ldt_free_fs( thread_data->fs );
if (addr)
{
size = 0;
NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
}
if (handle) NtClose( handle );
pthread_sigmask( SIG_SETMASK, &sigset, NULL );
close( request_pipe[1] );
return status;
}
/***********************************************************************
* NtOpenThread (NTDLL.@)
* ZwOpenThread (NTDLL.@)
*/
NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
{
NTSTATUS ret;
SERVER_START_REQ( open_thread )
{
req->tid = HandleToULong(id->UniqueThread);
req->access = access;
req->attributes = attr ? attr->Attributes : 0;
ret = wine_server_call( req );
*handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtSuspendThread (NTDLL.@)
* ZwSuspendThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
{
NTSTATUS ret;
SERVER_START_REQ( suspend_thread )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req ))) *count = reply->count;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtResumeThread (NTDLL.@)
* ZwResumeThread (NTDLL.@)
*/
NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
{
NTSTATUS ret;
SERVER_START_REQ( resume_thread )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req ))) *count = reply->count;
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtAlertResumeThread (NTDLL.@)
* ZwAlertResumeThread (NTDLL.@)
*/
NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
{
FIXME( "stub: should alert thread %p\n", handle );
return NtResumeThread( handle, count );
}
/******************************************************************************
* NtAlertThread (NTDLL.@)
* ZwAlertThread (NTDLL.@)
*/
NTSTATUS WINAPI NtAlertThread( HANDLE handle )
{
FIXME( "stub: %p\n", handle );
return STATUS_NOT_IMPLEMENTED;
}
/******************************************************************************
* NtTerminateThread (NTDLL.@)
* ZwTerminateThread (NTDLL.@)
*/
NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
{
NTSTATUS ret;
BOOL self, last;
SERVER_START_REQ( terminate_thread )
{
req->handle = wine_server_obj_handle( handle );
req->exit_code = exit_code;
ret = wine_server_call( req );
self = !ret && reply->self;
last = reply->last;
}
SERVER_END_REQ;
if (self)
{
if (last) _exit( exit_code );
else abort_thread( exit_code );
}
return ret;
}
/******************************************************************************
* NtQueueApcThread (NTDLL.@)
*/
NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
ULONG_PTR arg2, ULONG_PTR arg3 )
{
NTSTATUS ret;
SERVER_START_REQ( queue_apc )
{
req->handle = wine_server_obj_handle( handle );
if (func)
{
req->call.type = APC_USER;
req->call.user.func = wine_server_client_ptr( func );
req->call.user.args[0] = arg1;
req->call.user.args[1] = arg2;
req->call.user.args[2] = arg3;
}
else req->call.type = APC_NONE; /* wake up only */
ret = wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* NtSetContextThread (NTDLL.@)
* ZwSetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
{
NTSTATUS ret;
DWORD dummy, i;
BOOL self = FALSE;
#ifdef __i386__
/* on i386 debug registers always require a server call */
self = (handle == GetCurrentThread());
if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
{
struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
}
#endif
if (!self)
{
context_t server_context;
context_to_server( &server_context, context );
SERVER_START_REQ( set_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->suspend = 0;
wine_server_add_data( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
self = reply->self;
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
{
for (i = 0; i < 100; i++)
{
SERVER_START_REQ( set_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->suspend = 0;
wine_server_add_data( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -10000;
NtDelayExecution( FALSE, &timeout );
}
else break;
}
NtResumeThread( handle, &dummy );
}
if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
}
if (ret) return ret;
}
if (self) set_cpu_context( context );
return STATUS_SUCCESS;
}
/* convert CPU-specific flags to generic server flags */
static inline unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~0x3f; /* mask CPU id flags */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
#ifdef CONTEXT_SEGMENTS
if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
#endif
#ifdef CONTEXT_FLOATING_POINT
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
#endif
#ifdef CONTEXT_DEBUG_REGISTERS
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
#endif
#ifdef CONTEXT_EXTENDED_REGISTERS
if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
#endif
return ret;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD dummy, i;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
#ifdef __i386__
/* on i386 debug registers always require a server call */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
#endif
if (!self)
{
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
context_t server_context;
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = server_flags;
req->suspend = 0;
wine_server_set_reply( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
self = reply->self;
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
{
for (i = 0; i < 100; i++)
{
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = server_flags;
req->suspend = 0;
wine_server_set_reply( req, &server_context, sizeof(server_context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -10000;
NtDelayExecution( FALSE, &timeout );
}
else break;
}
NtResumeThread( handle, &dummy );
}
if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
}
if (!ret) ret = context_from_server( context, &server_context );
if (ret) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self)
{
if (needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
#ifdef __i386__
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
{
struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
regs->dr0 = context->Dr0;
regs->dr1 = context->Dr1;
regs->dr2 = context->Dr2;
regs->dr3 = context->Dr3;
regs->dr6 = context->Dr6;
regs->dr7 = context->Dr7;
}
#endif
}
return STATUS_SUCCESS;
}
/******************************************************************************
* NtQueryInformationThread (NTDLL.@)
* ZwQueryInformationThread (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
void *data, ULONG length, ULONG *ret_len )
{
NTSTATUS status;
switch(class)
{
case ThreadBasicInformation:
{
THREAD_BASIC_INFORMATION info;
const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->tid_in = 0;
if (!(status = wine_server_call( req )))
{
info.ExitStatus = reply->exit_code;
info.TebBaseAddress = wine_server_get_ptr( reply->teb );
info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
info.ClientId.UniqueThread = ULongToHandle(reply->tid);
info.AffinityMask = reply->affinity & affinity_mask;
info.Priority = reply->priority;
info.BasePriority = reply->priority; /* FIXME */
}
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
if (data) memcpy( data, &info, min( length, sizeof(info) ));
if (ret_len) *ret_len = min( length, sizeof(info) );
}
}
return status;
case ThreadAffinityMask:
{
const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
ULONG_PTR affinity = 0;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->tid_in = 0;
if (!(status = wine_server_call( req )))
affinity = reply->affinity & affinity_mask;
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
if (ret_len) *ret_len = min( length, sizeof(affinity) );
}
}
return status;
case ThreadTimes:
{
KERNEL_USER_TIMES kusrt;
/* We need to do a server call to get the creation time or exit time */
/* This works on any thread */
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->tid_in = 0;
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
kusrt.CreateTime.QuadPart = reply->creation_time;
kusrt.ExitTime.QuadPart = reply->exit_time;
}
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
/* We call times(2) for kernel time or user time */
/* We can only (portably) do this for the current thread */
if (handle == GetCurrentThread())
{
struct tms time_buf;
long clocks_per_sec = sysconf(_SC_CLK_TCK);
times(&time_buf);
kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
}
else
{
static BOOL reported = FALSE;
kusrt.KernelTime.QuadPart = 0;
kusrt.UserTime.QuadPart = 0;
if (reported)
TRACE("Cannot get kerneltime or usertime of other threads\n");
else
{
FIXME("Cannot get kerneltime or usertime of other threads\n");
reported = TRUE;
}
}
if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
if (ret_len) *ret_len = min( length, sizeof(kusrt) );
}
}
return status;
case ThreadDescriptorTableEntry:
{
#ifdef __i386__
THREAD_DESCRIPTOR_INFORMATION* tdi = data;
if (length < sizeof(*tdi))
status = STATUS_INFO_LENGTH_MISMATCH;
else if (!(tdi->Selector & 4)) /* GDT selector */
{
unsigned sel = tdi->Selector & ~3; /* ignore RPL */
status = STATUS_SUCCESS;
if (!sel) /* null selector */
memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
else
{
tdi->Entry.BaseLow = 0;
tdi->Entry.HighWord.Bits.BaseMid = 0;
tdi->Entry.HighWord.Bits.BaseHi = 0;
tdi->Entry.LimitLow = 0xffff;
tdi->Entry.HighWord.Bits.LimitHi = 0xf;
tdi->Entry.HighWord.Bits.Dpl = 3;
tdi->Entry.HighWord.Bits.Sys = 0;
tdi->Entry.HighWord.Bits.Pres = 1;
tdi->Entry.HighWord.Bits.Granularity = 1;
tdi->Entry.HighWord.Bits.Default_Big = 1;
tdi->Entry.HighWord.Bits.Type = 0x12;
/* it has to be one of the system GDT selectors */
if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
{
if (sel == (wine_get_cs() & ~3))
tdi->Entry.HighWord.Bits.Type |= 8; /* code segment */
else status = STATUS_ACCESS_DENIED;
}
}
}
else
{
SERVER_START_REQ( get_selector_entry )
{
req->handle = wine_server_obj_handle( handle );
req->entry = tdi->Selector >> 3;
status = wine_server_call( req );
if (!status)
{
if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
status = STATUS_ACCESS_VIOLATION;
else
{
wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
wine_ldt_set_limit( &tdi->Entry, reply->limit );
wine_ldt_set_flags( &tdi->Entry, reply->flags );
}
}
}
SERVER_END_REQ;
}
if (status == STATUS_SUCCESS && ret_len)
/* yes, that's a bit strange, but it's the way it is */
*ret_len = sizeof(LDT_ENTRY);
#else
status = STATUS_NOT_IMPLEMENTED;
#endif
return status;
}
case ThreadAmILastThread:
{
SERVER_START_REQ(get_thread_info)
{
req->handle = wine_server_obj_handle( handle );
req->tid_in = 0;
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
BOOLEAN last = reply->last;
if (data) memcpy( data, &last, min( length, sizeof(last) ));
if (ret_len) *ret_len = min( length, sizeof(last) );
}
}
SERVER_END_REQ;
return status;
}
case ThreadPriority:
case ThreadBasePriority:
case ThreadImpersonationToken:
case ThreadEnableAlignmentFaultFixup:
case ThreadEventPair_Reusable:
case ThreadQuerySetWin32StartAddress:
case ThreadZeroTlsCell:
case ThreadPerformanceCount:
case ThreadIdealProcessor:
case ThreadPriorityBoost:
case ThreadSetTlsArrayAddress:
case ThreadIsIoPending:
default:
FIXME( "info class %d not supported yet\n", class );
return STATUS_NOT_IMPLEMENTED;
}
}
/******************************************************************************
* NtSetInformationThread (NTDLL.@)
* ZwSetInformationThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
LPCVOID data, ULONG length )
{
NTSTATUS status;
switch(class)
{
case ThreadZeroTlsCell:
if (handle == GetCurrentThread())
{
LIST_ENTRY *entry;
DWORD index;
if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
index = *(const DWORD *)data;
if (index < TLS_MINIMUM_AVAILABLE)
{
RtlAcquirePebLock();
for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
{
TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
teb->TlsSlots[index] = 0;
}
RtlReleasePebLock();
}
else
{
index -= TLS_MINIMUM_AVAILABLE;
if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
return STATUS_INVALID_PARAMETER;
RtlAcquirePebLock();
for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
{
TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
}
RtlReleasePebLock();
}
return STATUS_SUCCESS;
}
FIXME( "ZeroTlsCell not supported on other threads\n" );
return STATUS_NOT_IMPLEMENTED;
case ThreadImpersonationToken:
{
const HANDLE *phToken = data;
if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->token = wine_server_obj_handle( *phToken );
req->mask = SET_THREAD_INFO_TOKEN;
status = wine_server_call( req );
}
SERVER_END_REQ;
}
return status;
case ThreadBasePriority:
{
const DWORD *pprio = data;
if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->priority = *pprio;
req->mask = SET_THREAD_INFO_PRIORITY;
status = wine_server_call( req );
}
SERVER_END_REQ;
}
return status;
case ThreadAffinityMask:
{
const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
const ULONG_PTR *paff = data;
if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->affinity = *paff;
req->mask = SET_THREAD_INFO_AFFINITY;
status = wine_server_call( req );
}
SERVER_END_REQ;
}
return status;
case ThreadBasicInformation:
case ThreadTimes:
case ThreadPriority:
case ThreadDescriptorTableEntry:
case ThreadEnableAlignmentFaultFixup:
case ThreadEventPair_Reusable:
case ThreadQuerySetWin32StartAddress:
case ThreadPerformanceCount:
case ThreadAmILastThread:
case ThreadIdealProcessor:
case ThreadPriorityBoost:
case ThreadSetTlsArrayAddress:
case ThreadIsIoPending:
default:
FIXME( "info class %d not supported yet\n", class );
return STATUS_NOT_IMPLEMENTED;
}
}
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