Sweden-Number/dlls/ntdll/thread.c

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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 <assert.h>
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#include <stdarg.h>
#include <limits.h>
#include <sys/types.h>
#define NONAMELESSUNION
#include "ntstatus.h"
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#define WIN32_NO_STATUS
#include "winternl.h"
#include "wine/server.h"
#include "wine/debug.h"
#include "ntdll_misc.h"
#include "ddk/wdm.h"
#include "wine/exception.h"
WINE_DECLARE_DEBUG_CHANNEL(relay);
struct _KUSER_SHARED_DATA *user_shared_data = (void *)0x7ffe0000;
/***********************************************************************
* __wine_dbg_get_channel_flags (NTDLL.@)
*
* Get the flags to use for a given channel, possibly setting them too in case of lazy init
*/
unsigned char __cdecl __wine_dbg_get_channel_flags( struct __wine_debug_channel *channel )
{
return unix_funcs->dbg_get_channel_flags( channel );
}
/***********************************************************************
* __wine_dbg_strdup (NTDLL.@)
*/
const char * __cdecl __wine_dbg_strdup( const char *str )
{
return unix_funcs->dbg_strdup( str );
}
/***********************************************************************
* __wine_dbg_header (NTDLL.@)
*/
int __cdecl __wine_dbg_header( enum __wine_debug_class cls, struct __wine_debug_channel *channel,
const char *function )
{
return unix_funcs->dbg_header( cls, channel, function );
}
/***********************************************************************
* __wine_dbg_output (NTDLL.@)
*/
int __cdecl __wine_dbg_output( const char *str )
{
return unix_funcs->dbg_output( str );
}
/***********************************************************************
* RtlExitUserThread (NTDLL.@)
*/
void WINAPI RtlExitUserThread( ULONG status )
{
ULONG last;
NtQueryInformationThread( GetCurrentThread(), ThreadAmILastThread, &last, sizeof(last), NULL );
if (last) RtlExitUserProcess( status );
LdrShutdownThread();
RtlFreeThreadActivationContextStack();
for (;;) NtTerminateThread( GetCurrentThread(), status );
}
/***********************************************************************
* RtlUserThreadStart (NTDLL.@)
*/
#ifdef __i386__
__ASM_STDCALL_FUNC( RtlUserThreadStart, 8,
"pushl %ebp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
"movl %esp,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"pushl %ebx\n\t" /* arg */
"pushl %eax\n\t" /* entry */
"call " __ASM_NAME("call_thread_func") )
/* wrapper for apps that don't declare the thread function correctly */
extern DWORD call_thread_func_wrapper( PRTL_THREAD_START_ROUTINE entry, void *arg );
__ASM_GLOBAL_FUNC(call_thread_func_wrapper,
"pushl %ebp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
"movl %esp,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"subl $4,%esp\n\t"
"pushl 12(%ebp)\n\t"
"call *8(%ebp)\n\t"
"leave\n\t"
__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
__ASM_CFI(".cfi_same_value %ebp\n\t")
"ret" )
void DECLSPEC_HIDDEN call_thread_func( PRTL_THREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
RtlExitUserThread( call_thread_func_wrapper( entry, arg ));
}
__EXCEPT(call_unhandled_exception_filter)
{
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
}
#else /* __i386__ */
void WINAPI RtlUserThreadStart( PRTL_THREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
RtlExitUserThread( ((LPTHREAD_START_ROUTINE)entry)( arg ));
}
__EXCEPT(call_unhandled_exception_filter)
{
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
}
#endif /* __i386__ */
/***********************************************************************
* RtlCreateUserThread (NTDLL.@)
*/
NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, 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 )
{
ULONG flags = suspended ? THREAD_CREATE_FLAGS_CREATE_SUSPENDED : 0;
ULONG_PTR buffer[offsetof( PS_ATTRIBUTE_LIST, Attributes[2] ) / sizeof(ULONG_PTR)];
PS_ATTRIBUTE_LIST *attr_list = (PS_ATTRIBUTE_LIST *)buffer;
HANDLE handle, actctx;
TEB *teb;
ULONG ret;
NTSTATUS status;
CLIENT_ID client_id;
OBJECT_ATTRIBUTES attr;
attr_list->TotalLength = sizeof(buffer);
attr_list->Attributes[0].Attribute = PS_ATTRIBUTE_CLIENT_ID;
attr_list->Attributes[0].Size = sizeof(client_id);
attr_list->Attributes[0].ValuePtr = &client_id;
attr_list->Attributes[0].ReturnLength = NULL;
attr_list->Attributes[1].Attribute = PS_ATTRIBUTE_TEB_ADDRESS;
attr_list->Attributes[1].Size = sizeof(teb);
attr_list->Attributes[1].ValuePtr = &teb;
attr_list->Attributes[1].ReturnLength = NULL;
InitializeObjectAttributes( &attr, NULL, 0, NULL, descr );
RtlGetActiveActivationContext( &actctx );
if (actctx) flags |= THREAD_CREATE_FLAGS_CREATE_SUSPENDED;
status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, &attr, process, start, param,
flags, 0, stack_commit, stack_reserve, attr_list );
if (!status)
{
if (actctx)
{
ULONG_PTR cookie;
RtlActivateActivationContextEx( 0, teb, actctx, &cookie );
if (!suspended) NtResumeThread( handle, &ret );
}
if (id) *id = client_id;
if (handle_ptr) *handle_ptr = handle;
else NtClose( handle );
}
if (actctx) RtlReleaseActivationContext( actctx );
return status;
}
/******************************************************************************
* RtlGetNtGlobalFlags (NTDLL.@)
*/
ULONG WINAPI RtlGetNtGlobalFlags(void)
{
return NtCurrentTeb()->Peb->NtGlobalFlag;
}
/******************************************************************************
* RtlPushFrame (NTDLL.@)
*/
void WINAPI RtlPushFrame( TEB_ACTIVE_FRAME *frame )
{
frame->Previous = NtCurrentTeb()->ActiveFrame;
NtCurrentTeb()->ActiveFrame = frame;
}
/******************************************************************************
* RtlPopFrame (NTDLL.@)
*/
void WINAPI RtlPopFrame( TEB_ACTIVE_FRAME *frame )
{
NtCurrentTeb()->ActiveFrame = frame->Previous;
}
/******************************************************************************
* RtlGetFrame (NTDLL.@)
*/
TEB_ACTIVE_FRAME * WINAPI RtlGetFrame(void)
{
return NtCurrentTeb()->ActiveFrame;
}