523 lines
16 KiB
C
523 lines
16 KiB
C
/*
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* NT threads support
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*
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* Copyright 1996, 2003 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <stdarg.h>
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#include <limits.h>
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#include <sys/types.h>
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#define NONAMELESSUNION
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "winternl.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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#include "ddk/wdm.h"
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#include "wine/exception.h"
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WINE_DECLARE_DEBUG_CHANNEL(relay);
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WINE_DECLARE_DEBUG_CHANNEL(thread);
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struct _KUSER_SHARED_DATA *user_shared_data = (void *)0x7ffe0000;
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/***********************************************************************
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* __wine_dbg_get_channel_flags (NTDLL.@)
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*
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* Get the flags to use for a given channel, possibly setting them too in case of lazy init
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*/
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unsigned char __cdecl __wine_dbg_get_channel_flags( struct __wine_debug_channel *channel )
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{
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return unix_funcs->dbg_get_channel_flags( channel );
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}
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/***********************************************************************
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* __wine_dbg_strdup (NTDLL.@)
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*/
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const char * __cdecl __wine_dbg_strdup( const char *str )
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{
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return unix_funcs->dbg_strdup( str );
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}
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/***********************************************************************
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* __wine_dbg_header (NTDLL.@)
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*/
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int __cdecl __wine_dbg_header( enum __wine_debug_class cls, struct __wine_debug_channel *channel,
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const char *function )
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{
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return unix_funcs->dbg_header( cls, channel, function );
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}
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/***********************************************************************
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* __wine_dbg_output (NTDLL.@)
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*/
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int __cdecl __wine_dbg_output( const char *str )
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{
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return unix_funcs->dbg_output( str );
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}
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/***********************************************************************
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* RtlExitUserThread (NTDLL.@)
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*/
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void WINAPI RtlExitUserThread( ULONG status )
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{
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ULONG last;
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NtQueryInformationThread( GetCurrentThread(), ThreadAmILastThread, &last, sizeof(last), NULL );
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if (last) RtlExitUserProcess( status );
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LdrShutdownThread();
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for (;;) NtTerminateThread( GetCurrentThread(), status );
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}
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/***********************************************************************
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* RtlUserThreadStart (NTDLL.@)
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*/
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#ifdef __i386__
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__ASM_STDCALL_FUNC( RtlUserThreadStart, 8,
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"movl %ebx,8(%esp)\n\t" /* arg */
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"movl %eax,4(%esp)\n\t" /* entry */
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"jmp " __ASM_NAME("call_thread_func") )
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/* wrapper to call BaseThreadInitThunk */
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extern void DECLSPEC_NORETURN call_thread_func_wrapper( void *thunk, PRTL_THREAD_START_ROUTINE entry, void *arg );
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__ASM_GLOBAL_FUNC( call_thread_func_wrapper,
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"pushl %ebp\n\t"
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__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
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__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
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"movl %esp,%ebp\n\t"
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__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
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"subl $4,%esp\n\t"
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"andl $~0xf,%esp\n\t"
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"xorl %ecx,%ecx\n\t"
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"movl 12(%ebp),%edx\n\t"
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"movl 16(%ebp),%eax\n\t"
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"movl %eax,(%esp)\n\t"
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"call *8(%ebp)" )
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void DECLSPEC_HIDDEN call_thread_func( PRTL_THREAD_START_ROUTINE entry, void *arg )
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{
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__TRY
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{
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TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
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call_thread_func_wrapper( pBaseThreadInitThunk, entry, arg );
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}
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__EXCEPT(call_unhandled_exception_filter)
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{
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NtTerminateProcess( GetCurrentProcess(), GetExceptionCode() );
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}
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__ENDTRY
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}
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#else /* __i386__ */
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void WINAPI RtlUserThreadStart( PRTL_THREAD_START_ROUTINE entry, void *arg )
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{
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__TRY
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{
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TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
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pBaseThreadInitThunk( 0, (LPTHREAD_START_ROUTINE)entry, arg );
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}
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__EXCEPT(call_unhandled_exception_filter)
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{
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NtTerminateProcess( GetCurrentProcess(), GetExceptionCode() );
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}
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__ENDTRY
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}
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#endif /* __i386__ */
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/***********************************************************************
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* RtlCreateUserThread (NTDLL.@)
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*/
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NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, SECURITY_DESCRIPTOR *descr,
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BOOLEAN suspended, ULONG zero_bits,
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SIZE_T stack_reserve, SIZE_T stack_commit,
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PRTL_THREAD_START_ROUTINE start, void *param,
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HANDLE *handle_ptr, CLIENT_ID *id )
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{
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ULONG flags = suspended ? THREAD_CREATE_FLAGS_CREATE_SUSPENDED : 0;
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ULONG_PTR buffer[offsetof( PS_ATTRIBUTE_LIST, Attributes[2] ) / sizeof(ULONG_PTR)];
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PS_ATTRIBUTE_LIST *attr_list = (PS_ATTRIBUTE_LIST *)buffer;
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HANDLE handle, actctx;
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TEB *teb;
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ULONG ret;
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NTSTATUS status;
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CLIENT_ID client_id;
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OBJECT_ATTRIBUTES attr;
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attr_list->TotalLength = sizeof(buffer);
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attr_list->Attributes[0].Attribute = PS_ATTRIBUTE_CLIENT_ID;
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attr_list->Attributes[0].Size = sizeof(client_id);
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attr_list->Attributes[0].ValuePtr = &client_id;
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attr_list->Attributes[0].ReturnLength = NULL;
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attr_list->Attributes[1].Attribute = PS_ATTRIBUTE_TEB_ADDRESS;
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attr_list->Attributes[1].Size = sizeof(teb);
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attr_list->Attributes[1].ValuePtr = &teb;
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attr_list->Attributes[1].ReturnLength = NULL;
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InitializeObjectAttributes( &attr, NULL, 0, NULL, descr );
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RtlGetActiveActivationContext( &actctx );
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if (actctx) flags |= THREAD_CREATE_FLAGS_CREATE_SUSPENDED;
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status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, &attr, process, start, param,
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flags, zero_bits, stack_commit, stack_reserve, attr_list );
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if (!status)
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{
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if (actctx)
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{
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ULONG_PTR cookie;
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RtlActivateActivationContextEx( 0, teb, actctx, &cookie );
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if (!suspended) NtResumeThread( handle, &ret );
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}
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if (id) *id = client_id;
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if (handle_ptr) *handle_ptr = handle;
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else NtClose( handle );
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}
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if (actctx) RtlReleaseActivationContext( actctx );
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return status;
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}
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/******************************************************************************
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* RtlGetNtGlobalFlags (NTDLL.@)
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*/
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ULONG WINAPI RtlGetNtGlobalFlags(void)
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{
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return NtCurrentTeb()->Peb->NtGlobalFlag;
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}
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/******************************************************************************
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* RtlPushFrame (NTDLL.@)
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*/
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void WINAPI RtlPushFrame( TEB_ACTIVE_FRAME *frame )
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{
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frame->Previous = NtCurrentTeb()->ActiveFrame;
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NtCurrentTeb()->ActiveFrame = frame;
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}
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/******************************************************************************
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* RtlPopFrame (NTDLL.@)
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*/
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void WINAPI RtlPopFrame( TEB_ACTIVE_FRAME *frame )
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{
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NtCurrentTeb()->ActiveFrame = frame->Previous;
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}
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/******************************************************************************
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* RtlGetFrame (NTDLL.@)
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*/
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TEB_ACTIVE_FRAME * WINAPI RtlGetFrame(void)
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{
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return NtCurrentTeb()->ActiveFrame;
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}
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/***********************************************************************
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* Fibers
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***********************************************************************/
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static GLOBAL_FLS_DATA fls_data = { { NULL }, { &fls_data.fls_list_head, &fls_data.fls_list_head } };
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static RTL_CRITICAL_SECTION fls_section;
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static RTL_CRITICAL_SECTION_DEBUG fls_critsect_debug =
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{
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0, 0, &fls_section,
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{ &fls_critsect_debug.ProcessLocksList, &fls_critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": fls_section") }
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};
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static RTL_CRITICAL_SECTION fls_section = { &fls_critsect_debug, -1, 0, 0, 0, 0 };
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#define MAX_FLS_DATA_COUNT 0xff0
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static void lock_fls_data(void)
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{
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RtlEnterCriticalSection( &fls_section );
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}
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static void unlock_fls_data(void)
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{
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RtlLeaveCriticalSection( &fls_section );
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}
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static unsigned int fls_chunk_size( unsigned int chunk_index )
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{
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return 0x10 << chunk_index;
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}
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static unsigned int fls_index_from_chunk_index( unsigned int chunk_index, unsigned int index )
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{
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return 0x10 * ((1 << chunk_index) - 1) + index;
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}
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static unsigned int fls_chunk_index_from_index( unsigned int index, unsigned int *index_in_chunk )
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{
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unsigned int chunk_index = 0;
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while (index >= fls_chunk_size( chunk_index ))
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index -= fls_chunk_size( chunk_index++ );
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*index_in_chunk = index;
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return chunk_index;
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}
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TEB_FLS_DATA *fls_alloc_data(void)
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{
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TEB_FLS_DATA *fls;
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if (!(fls = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*fls) )))
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return NULL;
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lock_fls_data();
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InsertTailList( &fls_data.fls_list_head, &fls->fls_list_entry );
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unlock_fls_data();
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return fls;
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}
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/***********************************************************************
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* RtlFlsAlloc (NTDLL.@)
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*/
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NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsAlloc( PFLS_CALLBACK_FUNCTION callback, ULONG *ret_index )
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{
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unsigned int chunk_index, index, i;
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FLS_INFO_CHUNK *chunk;
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TEB_FLS_DATA *fls;
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if (!(fls = NtCurrentTeb()->FlsSlots)
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&& !(NtCurrentTeb()->FlsSlots = fls = fls_alloc_data()))
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return STATUS_NO_MEMORY;
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lock_fls_data();
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for (i = 0; i < ARRAY_SIZE(fls_data.fls_callback_chunks); ++i)
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{
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if (!fls_data.fls_callback_chunks[i] || fls_data.fls_callback_chunks[i]->count < fls_chunk_size( i ))
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break;
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}
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if ((chunk_index = i) == ARRAY_SIZE(fls_data.fls_callback_chunks))
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{
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unlock_fls_data();
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return STATUS_NO_MEMORY;
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}
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if ((chunk = fls_data.fls_callback_chunks[chunk_index]))
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{
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for (index = 0; index < fls_chunk_size( chunk_index ); ++index)
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if (!chunk->callbacks[index].callback)
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break;
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assert( index < fls_chunk_size( chunk_index ));
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}
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else
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{
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fls_data.fls_callback_chunks[chunk_index] = chunk = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
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offsetof(FLS_INFO_CHUNK, callbacks) + sizeof(*chunk->callbacks) * fls_chunk_size( chunk_index ));
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if (!chunk)
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{
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unlock_fls_data();
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return STATUS_NO_MEMORY;
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}
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if (chunk_index)
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{
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index = 0;
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}
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else
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{
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chunk->count = 1; /* FLS index 0 is prohibited. */
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chunk->callbacks[0].callback = (void *)~(ULONG_PTR)0;
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index = 1;
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}
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}
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++chunk->count;
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chunk->callbacks[index].callback = callback ? callback : (PFLS_CALLBACK_FUNCTION)~(ULONG_PTR)0;
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if ((*ret_index = fls_index_from_chunk_index( chunk_index, index )) > fls_data.fls_high_index)
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fls_data.fls_high_index = *ret_index;
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unlock_fls_data();
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* RtlFlsFree (NTDLL.@)
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*/
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NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsFree( ULONG index )
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{
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PFLS_CALLBACK_FUNCTION callback;
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unsigned int chunk_index, idx;
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FLS_INFO_CHUNK *chunk;
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LIST_ENTRY *entry;
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lock_fls_data();
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if (!index || index > fls_data.fls_high_index)
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{
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unlock_fls_data();
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return STATUS_INVALID_PARAMETER;
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}
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chunk_index = fls_chunk_index_from_index( index, &idx );
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if (!(chunk = fls_data.fls_callback_chunks[chunk_index])
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|| !(callback = chunk->callbacks[idx].callback))
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{
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unlock_fls_data();
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return STATUS_INVALID_PARAMETER;
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}
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for (entry = fls_data.fls_list_head.Flink; entry != &fls_data.fls_list_head; entry = entry->Flink)
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{
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TEB_FLS_DATA *fls = CONTAINING_RECORD(entry, TEB_FLS_DATA, fls_list_entry);
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if (fls->fls_data_chunks[chunk_index] && fls->fls_data_chunks[chunk_index][idx + 1])
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{
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if (callback != (void *)~(ULONG_PTR)0)
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{
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TRACE_(relay)("Calling FLS callback %p, arg %p.\n", callback,
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fls->fls_data_chunks[chunk_index][idx + 1]);
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callback( fls->fls_data_chunks[chunk_index][idx + 1] );
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}
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fls->fls_data_chunks[chunk_index][idx + 1] = NULL;
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}
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}
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--chunk->count;
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chunk->callbacks[idx].callback = NULL;
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unlock_fls_data();
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* RtlFlsSetValue (NTDLL.@)
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*/
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NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsSetValue( ULONG index, void *data )
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{
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unsigned int chunk_index, idx;
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TEB_FLS_DATA *fls;
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if (!index || index >= MAX_FLS_DATA_COUNT)
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return STATUS_INVALID_PARAMETER;
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if (!(fls = NtCurrentTeb()->FlsSlots)
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&& !(NtCurrentTeb()->FlsSlots = fls = fls_alloc_data()))
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return STATUS_NO_MEMORY;
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chunk_index = fls_chunk_index_from_index( index, &idx );
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if (!fls->fls_data_chunks[chunk_index] &&
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!(fls->fls_data_chunks[chunk_index] = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
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(fls_chunk_size( chunk_index ) + 1) * sizeof(*fls->fls_data_chunks[chunk_index]) )))
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return STATUS_NO_MEMORY;
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fls->fls_data_chunks[chunk_index][idx + 1] = data;
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* RtlFlsGetValue (NTDLL.@)
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*/
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NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsGetValue( ULONG index, void **data )
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{
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unsigned int chunk_index, idx;
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TEB_FLS_DATA *fls;
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if (!index || index >= MAX_FLS_DATA_COUNT || !(fls = NtCurrentTeb()->FlsSlots))
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return STATUS_INVALID_PARAMETER;
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chunk_index = fls_chunk_index_from_index( index, &idx );
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*data = fls->fls_data_chunks[chunk_index] ? fls->fls_data_chunks[chunk_index][idx + 1] : NULL;
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* RtlProcessFlsData (NTDLL.@)
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*/
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void WINAPI DECLSPEC_HOTPATCH RtlProcessFlsData( void *teb_fls_data, ULONG flags )
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{
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TEB_FLS_DATA *fls = teb_fls_data;
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unsigned int i, index;
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TRACE_(thread)( "teb_fls_data %p, flags %#x.\n", teb_fls_data, flags );
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if (flags & ~3)
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FIXME_(thread)( "Unknown flags %#x.\n", flags );
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if (!fls)
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return;
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if (flags & 1)
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{
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lock_fls_data();
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for (i = 0; i < ARRAY_SIZE(fls->fls_data_chunks); ++i)
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{
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if (!fls->fls_data_chunks[i] || !fls_data.fls_callback_chunks[i]
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|| !fls_data.fls_callback_chunks[i]->count)
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continue;
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for (index = 0; index < fls_chunk_size( i ); ++index)
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{
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PFLS_CALLBACK_FUNCTION callback = fls_data.fls_callback_chunks[i]->callbacks[index].callback;
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if (!fls->fls_data_chunks[i][index + 1])
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continue;
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if (callback && callback != (void *)~(ULONG_PTR)0)
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{
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|
TRACE_(relay)("Calling FLS callback %p, arg %p.\n", callback,
|
|
fls->fls_data_chunks[i][index + 1]);
|
|
|
|
callback( fls->fls_data_chunks[i][index + 1] );
|
|
}
|
|
fls->fls_data_chunks[i][index + 1] = NULL;
|
|
}
|
|
}
|
|
/* Not using RemoveEntryList() as Windows does not zero list entry here. */
|
|
fls->fls_list_entry.Flink->Blink = fls->fls_list_entry.Blink;
|
|
fls->fls_list_entry.Blink->Flink = fls->fls_list_entry.Flink;
|
|
unlock_fls_data();
|
|
}
|
|
|
|
if (flags & 2)
|
|
{
|
|
for (i = 0; i < ARRAY_SIZE(fls->fls_data_chunks); ++i)
|
|
RtlFreeHeap( GetProcessHeap(), 0, fls->fls_data_chunks[i] );
|
|
|
|
RtlFreeHeap( GetProcessHeap(), 0, fls );
|
|
}
|
|
}
|