862 lines
25 KiB
C
862 lines
25 KiB
C
/*
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* Win32 threads
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*
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* Copyright 1996 Alexandre Julliard
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*/
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#include "config.h"
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#include <assert.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#include <unistd.h>
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#include "wine/winbase16.h"
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#include "thread.h"
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#include "process.h"
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#include "task.h"
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#include "module.h"
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#include "user.h"
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#include "winerror.h"
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#include "heap.h"
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#include "selectors.h"
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#include "winnt.h"
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#include "server.h"
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#include "services.h"
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#include "stackframe.h"
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#include "builtin16.h"
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#include "debugtools.h"
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#include "queue.h"
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#include "hook.h"
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DEFAULT_DEBUG_CHANNEL(thread)
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/* TEB of the initial thread */
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static TEB initial_teb;
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/* Global thread list (FIXME: not thread-safe) */
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TEB *THREAD_First = &initial_teb;
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/***********************************************************************
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* THREAD_IsWin16
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*/
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BOOL THREAD_IsWin16( TEB *teb )
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{
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return !teb || !(teb->flags & TEBF_WIN32);
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}
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/***********************************************************************
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* THREAD_IdToTEB
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*
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* Convert a thread id to a TEB, making sure it is valid.
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*/
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TEB *THREAD_IdToTEB( DWORD id )
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{
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TEB *teb = THREAD_First;
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if (!id) return NtCurrentTeb();
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while (teb)
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{
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if ((DWORD)teb->tid == id) return teb;
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teb = teb->next;
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}
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/* Allow task handles to be used; convert to main thread */
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if ( IsTask16( id ) )
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{
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TDB *pTask = (TDB *)GlobalLock16( id );
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if (pTask) return pTask->teb;
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}
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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/***********************************************************************
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* THREAD_InitTEB
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*
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* Initialization of a newly created TEB.
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*/
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static BOOL THREAD_InitTEB( TEB *teb, DWORD stack_size, BOOL alloc_stack16,
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LPSECURITY_ATTRIBUTES sa )
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{
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DWORD old_prot;
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/* Allocate the stack */
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/* FIXME:
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* If stacksize smaller than 1 MB, allocate 1MB
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* (one program wanted only 10 kB, which is recommendable, but some WINE
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* functions, noteably in the files subdir, push HUGE structures and
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* arrays on the stack. They probably shouldn't.)
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* If stacksize larger than 16 MB, warn the user. (We could shrink the stack
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* but this could give more or less unexplainable crashes.)
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*/
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if (stack_size<1024*1024)
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stack_size = 1024 * 1024;
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if (stack_size >= 16*1024*1024)
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WARN("Thread stack size is %ld MB.\n",stack_size/1024/1024);
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teb->stack_base = VirtualAlloc(NULL, stack_size + SIGNAL_STACK_SIZE +
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(alloc_stack16 ? 0x10000 : 0),
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MEM_COMMIT, PAGE_EXECUTE_READWRITE );
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if (!teb->stack_base) goto error;
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/* Set a guard page at the bottom of the stack */
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VirtualProtect( teb->stack_base, 1, PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
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teb->stack_top = (char *)teb->stack_base + stack_size;
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teb->stack_low = teb->stack_base;
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teb->signal_stack = teb->stack_top; /* start of signal stack */
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/* Allocate the 16-bit stack selector */
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if (alloc_stack16)
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{
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teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, SEGMENT_DATA,
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FALSE, FALSE );
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if (!teb->stack_sel) goto error;
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teb->cur_stack = PTR_SEG_OFF_TO_SEGPTR( teb->stack_sel,
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0x10000 - sizeof(STACK16FRAME) );
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teb->signal_stack = (char *)teb->signal_stack + 0x10000;
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}
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/* Create the thread event */
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if (!(teb->event = CreateEventA( NULL, FALSE, FALSE, NULL ))) goto error;
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teb->event = ConvertToGlobalHandle( teb->event );
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/* StaticUnicodeString */
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teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
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teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
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return TRUE;
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error:
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if (teb->event) CloseHandle( teb->event );
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if (teb->stack_sel) SELECTOR_FreeBlock( teb->stack_sel, 1 );
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if (teb->stack_base) VirtualFree( teb->stack_base, 0, MEM_RELEASE );
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return FALSE;
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}
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/***********************************************************************
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* THREAD_FreeTEB
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*
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* Free data structures associated with a thread.
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* Must be called from the context of another thread.
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*/
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void CALLBACK THREAD_FreeTEB( ULONG_PTR arg )
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{
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TEB *teb = (TEB *)arg;
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TEB **pptr = &THREAD_First;
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TRACE("(%p) called\n", teb );
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SERVICE_Delete( teb->cleanup );
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PROCESS_CallUserSignalProc( USIG_THREAD_EXIT, (DWORD)teb->tid, 0 );
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CloseHandle( teb->event );
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while (*pptr && (*pptr != teb)) pptr = &(*pptr)->next;
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if (*pptr) *pptr = teb->next;
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/* Free the associated memory */
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if (teb->stack_sel) SELECTOR_FreeBlock( teb->stack_sel, 1 );
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SELECTOR_FreeBlock( teb->teb_sel, 1 );
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close( teb->socket );
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if (teb->buffer) munmap( teb->buffer, teb->buffer_size );
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VirtualFree( teb->stack_base, 0, MEM_RELEASE );
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VirtualFree( teb, 0, MEM_FREE );
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}
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/***********************************************************************
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* THREAD_CreateInitialThread
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*
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* Create the initial thread.
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*/
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TEB *THREAD_CreateInitialThread( PDB *pdb, int server_fd )
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{
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initial_teb.except = (void *)-1;
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initial_teb.self = &initial_teb;
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initial_teb.flags = /* TEBF_WIN32 */ 0;
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initial_teb.tls_ptr = initial_teb.tls_array;
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initial_teb.process = pdb;
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initial_teb.exit_code = 0x103; /* STILL_ACTIVE */
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initial_teb.socket = server_fd;
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/* Allocate the TEB selector (%fs register) */
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if (!(initial_teb.teb_sel = SELECTOR_AllocBlock( &initial_teb, 0x1000,
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SEGMENT_DATA, TRUE, FALSE )))
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{
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MESSAGE("Could not allocate fs register for initial thread\n" );
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return NULL;
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}
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SYSDEPS_SetCurThread( &initial_teb );
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/* Now proceed with normal initialization */
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if (CLIENT_InitThread()) return NULL;
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if (!THREAD_InitTEB( &initial_teb, 0, TRUE, NULL )) return NULL;
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return &initial_teb;
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}
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/***********************************************************************
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* THREAD_Create
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*
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* NOTES:
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* Native NT dlls are using the space left on the allocated page
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* the first allocated TEB on NT is at 0x7ffde000, since we can't
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* allocate in this area and don't support a granularity of 4kb
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* yet we leave it to VirtualAlloc to choose an address.
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*/
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TEB *THREAD_Create( PDB *pdb, int fd, DWORD flags, DWORD stack_size, BOOL alloc_stack16,
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LPSECURITY_ATTRIBUTES sa, int *server_handle )
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{
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struct new_thread_request *req = get_req_buffer();
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HANDLE cleanup_object;
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TEB *teb = VirtualAlloc(0, 0x1000, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
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if (!teb) return NULL;
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teb->except = (void *)-1;
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teb->htask16 = pdb->task;
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teb->self = teb;
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teb->flags = (pdb->flags & PDB32_WIN16_PROC)? 0 : TEBF_WIN32;
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teb->tls_ptr = teb->tls_array;
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teb->process = pdb;
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teb->exit_code = 0x103; /* STILL_ACTIVE */
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teb->socket = fd;
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/* Allocate the TEB selector (%fs register) */
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*server_handle = -1;
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teb->teb_sel = SELECTOR_AllocBlock( teb, 0x1000, SEGMENT_DATA, TRUE, FALSE );
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if (!teb->teb_sel) goto error;
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/* Create the thread on the server side */
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if (teb->socket == -1)
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{
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req->suspend = ((flags & CREATE_SUSPENDED) != 0);
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req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
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if (server_call_fd( REQ_NEW_THREAD, -1, &teb->socket )) goto error;
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teb->tid = req->tid;
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*server_handle = req->handle;
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fcntl( teb->socket, F_SETFD, 1 ); /* set close on exec flag */
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}
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/* Do the rest of the initialization */
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if (!THREAD_InitTEB( teb, stack_size, alloc_stack16, sa )) goto error;
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teb->next = THREAD_First;
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THREAD_First = teb;
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/* Install cleanup handler */
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if ( !DuplicateHandle( GetCurrentProcess(), *server_handle,
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GetCurrentProcess(), &cleanup_object,
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0, FALSE, DUPLICATE_SAME_ACCESS ) ) goto error;
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teb->cleanup = SERVICE_AddObject( cleanup_object, THREAD_FreeTEB, (ULONG_PTR)teb );
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TRACE("(%p) succeeded\n", teb);
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return teb;
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error:
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if (*server_handle != -1) CloseHandle( *server_handle );
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if (teb->teb_sel) SELECTOR_FreeBlock( teb->teb_sel, 1 );
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if (teb->socket != -1) close( teb->socket );
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VirtualFree( teb, 0, MEM_FREE );
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return NULL;
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}
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/***********************************************************************
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* THREAD_Start
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*
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* Start execution of a newly created thread. Does not return.
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*/
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static void THREAD_Start(void)
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{
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LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
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PROCESS_CallUserSignalProc( USIG_THREAD_INIT, (DWORD)NtCurrentTeb()->tid, 0 );
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PE_InitTls();
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MODULE_DllThreadAttach( NULL );
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if (NtCurrentTeb()->process->flags & PDB32_DEBUGGED) DEBUG_SendCreateThreadEvent( func );
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ExitThread( func( NtCurrentTeb()->entry_arg ) );
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}
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/***********************************************************************
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* CreateThread (KERNEL32.63)
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*/
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HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, DWORD stack,
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LPTHREAD_START_ROUTINE start, LPVOID param,
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DWORD flags, LPDWORD id )
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{
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int handle = -1;
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TEB *teb = THREAD_Create( PROCESS_Current(), -1, flags, stack, TRUE, sa, &handle );
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if (!teb) return 0;
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teb->flags |= TEBF_WIN32;
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teb->entry_point = start;
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teb->entry_arg = param;
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teb->startup = THREAD_Start;
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if (SYSDEPS_SpawnThread( teb ) == -1)
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{
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CloseHandle( handle );
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return 0;
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}
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if (id) *id = (DWORD)teb->tid;
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return handle;
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}
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/***********************************************************************
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* CreateThread16 (KERNEL.441)
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*/
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static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
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{
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FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
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DWORD param = ((DWORD *)threadArgs)[1];
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HeapFree( GetProcessHeap(), 0, threadArgs );
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((LPDWORD)CURRENT_STACK16)[-1] = param;
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return CallTo16Long( start, sizeof(DWORD) );
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}
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HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
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FARPROC16 start, SEGPTR param,
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DWORD flags, LPDWORD id )
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{
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DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
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if (!threadArgs) return INVALID_HANDLE_VALUE;
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threadArgs[0] = (DWORD)start;
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threadArgs[1] = (DWORD)param;
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return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
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}
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/***********************************************************************
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* ExitThread [KERNEL32.215] Ends a thread
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*
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* RETURNS
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* None
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*/
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void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
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{
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MODULE_DllThreadDetach( NULL );
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TerminateThread( GetCurrentThread(), code );
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}
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/***********************************************************************
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* GetCurrentThread [KERNEL32.200] Gets pseudohandle for current thread
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*
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* RETURNS
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* Pseudohandle for the current thread
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*/
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HANDLE WINAPI GetCurrentThread(void)
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{
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return CURRENT_THREAD_PSEUDOHANDLE;
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}
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/**********************************************************************
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* GetLastError [KERNEL.148] [KERNEL32.227] Returns last-error code.
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*
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* RETURNS
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* Calling thread's last error code value.
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*/
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DWORD WINAPI GetLastError(void)
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{
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return NtCurrentTeb()->last_error;
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}
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/**********************************************************************
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* SetLastErrorEx [USER32.485] Sets the last-error code.
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*
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* RETURNS
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* None.
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*/
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void WINAPI SetLastErrorEx(
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DWORD error, /* [in] Per-thread error code */
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DWORD type) /* [in] Error type */
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{
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TRACE("(0x%08lx, 0x%08lx)\n", error,type);
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switch(type) {
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case 0:
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break;
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case SLE_ERROR:
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case SLE_MINORERROR:
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case SLE_WARNING:
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/* Fall through for now */
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default:
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FIXME("(error=%08lx, type=%08lx): Unhandled type\n", error,type);
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break;
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}
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SetLastError( error );
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}
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/**********************************************************************
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* TlsAlloc [KERNEL32.530] Allocates a TLS index.
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*
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* Allocates a thread local storage index
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*
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* RETURNS
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* Success: TLS Index
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* Failure: 0xFFFFFFFF
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*/
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DWORD WINAPI TlsAlloc( void )
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{
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PDB *process = PROCESS_Current();
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DWORD i, mask, ret = 0;
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DWORD *bits = process->tls_bits;
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EnterCriticalSection( &process->crit_section );
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if (*bits == 0xffffffff)
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{
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bits++;
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ret = 32;
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if (*bits == 0xffffffff)
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{
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LeaveCriticalSection( &process->crit_section );
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SetLastError( ERROR_NO_MORE_ITEMS );
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return 0xffffffff;
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}
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}
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for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
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*bits |= mask;
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LeaveCriticalSection( &process->crit_section );
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return ret + i;
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}
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/**********************************************************************
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* TlsFree [KERNEL32.531] Releases a TLS index.
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*
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* Releases a thread local storage index, making it available for reuse
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*
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* RETURNS
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* Success: TRUE
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* Failure: FALSE
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*/
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BOOL WINAPI TlsFree(
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DWORD index) /* [in] TLS Index to free */
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{
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PDB *process = PROCESS_Current();
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DWORD mask;
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DWORD *bits = process->tls_bits;
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if (index >= 64)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return FALSE;
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}
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EnterCriticalSection( &process->crit_section );
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if (index >= 32) bits++;
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mask = (1 << (index & 31));
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if (!(*bits & mask)) /* already free? */
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{
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LeaveCriticalSection( &process->crit_section );
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SetLastError( ERROR_INVALID_PARAMETER );
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return FALSE;
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}
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*bits &= ~mask;
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NtCurrentTeb()->tls_array[index] = 0;
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/* FIXME: should zero all other thread values */
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LeaveCriticalSection( &process->crit_section );
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return TRUE;
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}
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/**********************************************************************
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* TlsGetValue [KERNEL32.532] Gets value in a thread's TLS slot
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*
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* RETURNS
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* Success: Value stored in calling thread's TLS slot for index
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* Failure: 0 and GetLastError returns NO_ERROR
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*/
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LPVOID WINAPI TlsGetValue(
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DWORD index) /* [in] TLS index to retrieve value for */
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{
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if (index >= 64)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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SetLastError( ERROR_SUCCESS );
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return NtCurrentTeb()->tls_array[index];
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}
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/**********************************************************************
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* TlsSetValue [KERNEL32.533] Stores a value in the thread's TLS slot.
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*
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* RETURNS
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* Success: TRUE
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* Failure: FALSE
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*/
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BOOL WINAPI TlsSetValue(
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DWORD index, /* [in] TLS index to set value for */
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LPVOID value) /* [in] Value to be stored */
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{
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if (index >= 64)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return FALSE;
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}
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NtCurrentTeb()->tls_array[index] = value;
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return TRUE;
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}
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/***********************************************************************
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* SetThreadContext [KERNEL32.670] Sets context of thread.
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*
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* RETURNS
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* Success: TRUE
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* Failure: FALSE
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*/
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BOOL WINAPI SetThreadContext( HANDLE handle, /* [in] Handle to thread with context */
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const CONTEXT *context ) /* [in] Address of context structure */
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{
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struct set_thread_context_request *req = get_req_buffer();
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req->handle = handle;
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req->flags = context->ContextFlags;
|
|
memcpy( &req->context, context, sizeof(*context) );
|
|
return !server_call( REQ_SET_THREAD_CONTEXT );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetThreadContext [KERNEL32.294] Retrieves context of thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI GetThreadContext( HANDLE handle, /* [in] Handle to thread with context */
|
|
CONTEXT *context ) /* [out] Address of context structure */
|
|
{
|
|
struct get_thread_context_request *req = get_req_buffer();
|
|
req->handle = handle;
|
|
req->flags = context->ContextFlags;
|
|
memcpy( &req->context, context, sizeof(*context) );
|
|
if (server_call( REQ_GET_THREAD_CONTEXT )) return FALSE;
|
|
memcpy( context, &req->context, sizeof(*context) );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetThreadPriority [KERNEL32.296] Returns priority for thread.
|
|
*
|
|
* RETURNS
|
|
* Success: Thread's priority level.
|
|
* Failure: THREAD_PRIORITY_ERROR_RETURN
|
|
*/
|
|
INT WINAPI GetThreadPriority(
|
|
HANDLE hthread) /* [in] Handle to thread */
|
|
{
|
|
INT ret = THREAD_PRIORITY_ERROR_RETURN;
|
|
struct get_thread_info_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
if (!server_call( REQ_GET_THREAD_INFO )) ret = req->priority;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SetThreadPriority [KERNEL32.514] Sets priority for thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI SetThreadPriority(
|
|
HANDLE hthread, /* [in] Handle to thread */
|
|
INT priority) /* [in] Thread priority level */
|
|
{
|
|
struct set_thread_info_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
req->priority = priority;
|
|
req->mask = SET_THREAD_INFO_PRIORITY;
|
|
return !server_call( REQ_SET_THREAD_INFO );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SetThreadAffinityMask (KERNEL32.669)
|
|
*/
|
|
DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
|
|
{
|
|
struct set_thread_info_request *req = get_req_buffer();
|
|
req->handle = hThread;
|
|
req->affinity = dwThreadAffinityMask;
|
|
req->mask = SET_THREAD_INFO_AFFINITY;
|
|
if (server_call( REQ_SET_THREAD_INFO )) return 0;
|
|
return 1; /* FIXME: should return previous value */
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* TerminateThread [KERNEL32.685] Terminates a thread
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI TerminateThread(
|
|
HANDLE handle, /* [in] Handle to thread */
|
|
DWORD exitcode) /* [in] Exit code for thread */
|
|
{
|
|
struct terminate_thread_request *req = get_req_buffer();
|
|
req->handle = handle;
|
|
req->exit_code = exitcode;
|
|
return !server_call( REQ_TERMINATE_THREAD );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetExitCodeThread [KERNEL32.???] Gets termination status of thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI GetExitCodeThread(
|
|
HANDLE hthread, /* [in] Handle to thread */
|
|
LPDWORD exitcode) /* [out] Address to receive termination status */
|
|
{
|
|
BOOL ret = FALSE;
|
|
struct get_thread_info_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
if (!server_call( REQ_GET_THREAD_INFO ))
|
|
{
|
|
if (exitcode) *exitcode = req->exit_code;
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* ResumeThread [KERNEL32.587] Resumes a thread.
|
|
*
|
|
* Decrements a thread's suspend count. When count is zero, the
|
|
* execution of the thread is resumed.
|
|
*
|
|
* RETURNS
|
|
* Success: Previous suspend count
|
|
* Failure: 0xFFFFFFFF
|
|
* Already running: 0
|
|
*/
|
|
DWORD WINAPI ResumeThread(
|
|
HANDLE hthread) /* [in] Identifies thread to restart */
|
|
{
|
|
DWORD ret = 0xffffffff;
|
|
struct resume_thread_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
if (!server_call( REQ_RESUME_THREAD )) ret = req->count;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SuspendThread [KERNEL32.681] Suspends a thread.
|
|
*
|
|
* RETURNS
|
|
* Success: Previous suspend count
|
|
* Failure: 0xFFFFFFFF
|
|
*/
|
|
DWORD WINAPI SuspendThread(
|
|
HANDLE hthread) /* [in] Handle to the thread */
|
|
{
|
|
DWORD ret = 0xffffffff;
|
|
struct suspend_thread_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
if (!server_call( REQ_SUSPEND_THREAD )) ret = req->count;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* QueueUserAPC (KERNEL32.566)
|
|
*/
|
|
DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
|
|
{
|
|
struct queue_apc_request *req = get_req_buffer();
|
|
req->handle = hthread;
|
|
req->func = func;
|
|
req->param = (void *)data;
|
|
return !server_call( REQ_QUEUE_APC );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetThreadTimes [KERNEL32.???] Obtains timing information.
|
|
*
|
|
* NOTES
|
|
* What are the fields where these values are stored?
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL WINAPI GetThreadTimes(
|
|
HANDLE thread, /* [in] Specifies the thread of interest */
|
|
LPFILETIME creationtime, /* [out] When the thread was created */
|
|
LPFILETIME exittime, /* [out] When the thread was destroyed */
|
|
LPFILETIME kerneltime, /* [out] Time thread spent in kernel mode */
|
|
LPFILETIME usertime) /* [out] Time thread spent in user mode */
|
|
{
|
|
FIXME("(0x%08x): stub\n",thread);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* AttachThreadInput [KERNEL32.8] Attaches input of 1 thread to other
|
|
*
|
|
* Attaches the input processing mechanism of one thread to that of
|
|
* another thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*
|
|
* TODO:
|
|
* 1. Reset the Key State (currenly per thread key state is not maintained)
|
|
*/
|
|
BOOL WINAPI AttachThreadInput(
|
|
DWORD idAttach, /* [in] Thread to attach */
|
|
DWORD idAttachTo, /* [in] Thread to attach to */
|
|
BOOL fAttach) /* [in] Attach or detach */
|
|
{
|
|
MESSAGEQUEUE *pSrcMsgQ = 0, *pTgtMsgQ = 0;
|
|
BOOL16 bRet = 0;
|
|
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
|
|
/* A thread cannot attach to itself */
|
|
if ( idAttach == idAttachTo )
|
|
goto CLEANUP;
|
|
|
|
/* According to the docs this method should fail if a
|
|
* "Journal record" hook is installed. (attaches all input queues together)
|
|
*/
|
|
if ( HOOK_IsHooked( WH_JOURNALRECORD ) )
|
|
goto CLEANUP;
|
|
|
|
/* Retrieve message queues corresponding to the thread id's */
|
|
pTgtMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( GetThreadQueue16( idAttach ) );
|
|
pSrcMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( GetThreadQueue16( idAttachTo ) );
|
|
|
|
/* Ensure we have message queues and that Src and Tgt threads
|
|
* are not system threads.
|
|
*/
|
|
if ( !pSrcMsgQ || !pTgtMsgQ || !pSrcMsgQ->pQData || !pTgtMsgQ->pQData )
|
|
goto CLEANUP;
|
|
|
|
if (fAttach) /* Attach threads */
|
|
{
|
|
/* Only attach if currently detached */
|
|
if ( pTgtMsgQ->pQData != pSrcMsgQ->pQData )
|
|
{
|
|
/* First release the target threads perQData */
|
|
PERQDATA_Release( pTgtMsgQ->pQData );
|
|
|
|
/* Share a reference to the source threads perQDATA */
|
|
PERQDATA_Addref( pSrcMsgQ->pQData );
|
|
pTgtMsgQ->pQData = pSrcMsgQ->pQData;
|
|
}
|
|
}
|
|
else /* Detach threads */
|
|
{
|
|
/* Only detach if currently attached */
|
|
if ( pTgtMsgQ->pQData == pSrcMsgQ->pQData )
|
|
{
|
|
/* First release the target threads perQData */
|
|
PERQDATA_Release( pTgtMsgQ->pQData );
|
|
|
|
/* Give the target thread its own private perQDATA once more */
|
|
pTgtMsgQ->pQData = PERQDATA_CreateInstance();
|
|
}
|
|
}
|
|
|
|
/* TODO: Reset the Key State */
|
|
|
|
bRet = 1; /* Success */
|
|
|
|
CLEANUP:
|
|
|
|
/* Unlock the queues before returning */
|
|
if ( pSrcMsgQ )
|
|
QUEUE_Unlock( pSrcMsgQ );
|
|
if ( pTgtMsgQ )
|
|
QUEUE_Unlock( pTgtMsgQ );
|
|
|
|
return bRet;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* VWin32_BoostThreadGroup [KERNEL.535]
|
|
*/
|
|
VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
|
|
{
|
|
FIXME("(0x%08lx,%d): stub\n", threadId, boost);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* VWin32_BoostThreadStatic [KERNEL.536]
|
|
*/
|
|
VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
|
|
{
|
|
FIXME("(0x%08lx,%d): stub\n", threadId, boost);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* SetThreadLocale [KERNEL32.671] Sets the calling threads current locale.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*
|
|
* NOTES
|
|
* Implemented in NT only (3.1 and above according to MS
|
|
*/
|
|
BOOL WINAPI SetThreadLocale(
|
|
LCID lcid) /* [in] Locale identifier */
|
|
{
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SetLastError [KERNEL.147] [KERNEL32.497] Sets the last-error code.
|
|
*
|
|
* RETURNS
|
|
* None.
|
|
*/
|
|
#undef SetLastError
|
|
void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
|
|
{
|
|
NtCurrentTeb()->last_error = error;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetCurrentThreadId [KERNEL32.201] Returns thread identifier.
|
|
*
|
|
* RETURNS
|
|
* Thread identifier of calling thread
|
|
*/
|
|
#undef GetCurrentThreadId
|
|
DWORD WINAPI GetCurrentThreadId(void)
|
|
{
|
|
return (DWORD)NtCurrentTeb()->tid;
|
|
}
|