897 lines
25 KiB
C
897 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 <assert.h>
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#include <signal.h>
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#include <unistd.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 "miscemu.h"
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#include "winnt.h"
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#include "server.h"
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#include "stackframe.h"
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#include "debug.h"
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#ifndef __i386__
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THDB *pCurrentThread;
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#endif
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static BOOL32 THREAD_Signaled( K32OBJ *obj, DWORD thread_id );
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static BOOL32 THREAD_Satisfied( K32OBJ *obj, DWORD thread_id );
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static void THREAD_AddWait( K32OBJ *obj, DWORD thread_id );
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static void THREAD_RemoveWait( K32OBJ *obj, DWORD thread_id );
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static void THREAD_Destroy( K32OBJ *obj );
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const K32OBJ_OPS THREAD_Ops =
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{
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THREAD_Signaled, /* signaled */
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THREAD_Satisfied, /* satisfied */
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THREAD_AddWait, /* add_wait */
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THREAD_RemoveWait, /* remove_wait */
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NULL, /* read */
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NULL, /* write */
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THREAD_Destroy /* destroy */
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};
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/* The pseudohandle used for the current thread, see GetCurrentThread */
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#define CURRENT_THREAD_PSEUDOHANDLE 0xfffffffe
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/* Is threading code initialized? */
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BOOL32 THREAD_InitDone = FALSE;
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/**********************************************************************
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* THREAD_GetPtr
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*
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* Return a pointer to a thread object. The object count must be decremented
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* when no longer used.
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*/
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THDB *THREAD_GetPtr( HANDLE32 handle, DWORD access, int *server_handle )
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{
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THDB *thread;
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if (handle == CURRENT_THREAD_PSEUDOHANDLE) /* Self-thread handle */
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{
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thread = THREAD_Current();
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if (server_handle) *server_handle = CURRENT_THREAD_PSEUDOHANDLE;
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K32OBJ_IncCount( &thread->header );
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}
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else thread = (THDB *)HANDLE_GetObjPtr( PROCESS_Current(), handle,
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K32OBJ_THREAD, access, server_handle );
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return thread;
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}
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/***********************************************************************
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* THREAD_Current
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*
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* Return the current thread THDB pointer.
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*/
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THDB *THREAD_Current(void)
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{
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if (!THREAD_InitDone) return NULL;
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return (THDB *)((char *)NtCurrentTeb() - (int)&((THDB *)0)->teb);
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}
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/***********************************************************************
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* THREAD_IsWin16
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*/
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BOOL32 THREAD_IsWin16( THDB *thdb )
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{
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if (!thdb || !thdb->process)
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return TRUE;
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else
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{
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TDB* pTask = (TDB*)GlobalLock16( thdb->process->task );
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return !pTask || pTask->thdb == thdb;
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}
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}
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/***********************************************************************
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* THREAD_AddQueue
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*
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* Add a thread to a queue.
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*/
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void THREAD_AddQueue( THREAD_QUEUE *queue, THDB *thread )
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{
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THREAD_ENTRY *entry = HeapAlloc( SystemHeap, HEAP_NO_SERIALIZE,
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sizeof(*entry) );
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assert(entry);
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SYSTEM_LOCK();
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entry->thread = thread;
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if (*queue)
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{
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entry->next = (*queue)->next;
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(*queue)->next = entry;
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}
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else entry->next = entry;
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*queue = entry;
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SYSTEM_UNLOCK();
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}
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/***********************************************************************
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* THREAD_RemoveQueue
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*
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* Remove a thread from a queue.
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*/
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void THREAD_RemoveQueue( THREAD_QUEUE *queue, THDB *thread )
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{
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THREAD_ENTRY *entry = *queue;
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SYSTEM_LOCK();
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if (entry->next == entry) /* Only one element in the queue */
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{
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assert( entry->thread == thread );
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*queue = NULL;
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}
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else
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{
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THREAD_ENTRY *next;
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while (entry->next->thread != thread)
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{
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entry = entry->next;
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assert( entry != *queue ); /* Have we come all the way around? */
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}
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if ((next = entry->next) == *queue) *queue = entry;
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entry->next = entry->next->next;
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entry = next; /* This is the one we want to free */
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}
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HeapFree( SystemHeap, 0, entry );
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SYSTEM_UNLOCK();
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}
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/***********************************************************************
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* THREAD_Create
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*/
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THDB *THREAD_Create( PDB32 *pdb, DWORD stack_size, BOOL32 alloc_stack16,
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int *server_thandle, int *server_phandle,
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LPTHREAD_START_ROUTINE start_addr, LPVOID param )
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{
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DWORD old_prot;
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WORD cs, ds;
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THDB *thdb = HeapAlloc( SystemHeap, HEAP_ZERO_MEMORY, sizeof(THDB) );
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if (!thdb) return NULL;
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thdb->header.type = K32OBJ_THREAD;
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thdb->header.refcount = 1;
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thdb->process = pdb;
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thdb->teb.except = (void *)-1;
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thdb->teb.htask16 = 0; /* FIXME */
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thdb->teb.self = &thdb->teb;
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thdb->teb.tls_ptr = thdb->tls_array;
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thdb->teb.process = pdb;
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thdb->wait_list = &thdb->wait_struct;
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thdb->exit_code = 0x103; /* STILL_ACTIVE */
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thdb->entry_point = start_addr;
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thdb->entry_arg = param;
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thdb->socket = -1;
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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,"Thread stack size is %ld MB.\n",stack_size/1024/1024);
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thdb->stack_base = VirtualAlloc(NULL,
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stack_size + (alloc_stack16 ? 0x10000 : 0),
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MEM_COMMIT, PAGE_EXECUTE_READWRITE );
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if (!thdb->stack_base) goto error;
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/* Set a guard page at the bottom of the stack */
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VirtualProtect( thdb->stack_base, 1, PAGE_EXECUTE_READWRITE | PAGE_GUARD,
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&old_prot );
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thdb->teb.stack_top = (char *)thdb->stack_base + stack_size;
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thdb->teb.stack_low = thdb->stack_base;
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thdb->exit_stack = thdb->teb.stack_top;
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/* Allocate the TEB selector (%fs register) */
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thdb->teb_sel = SELECTOR_AllocBlock( &thdb->teb, 0x1000, SEGMENT_DATA,
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TRUE, FALSE );
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if (!thdb->teb_sel) goto error;
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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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thdb->teb.stack_sel = SELECTOR_AllocBlock( thdb->teb.stack_top,
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0x10000, SEGMENT_DATA,
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FALSE, FALSE );
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if (!thdb->teb.stack_sel) goto error;
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thdb->cur_stack = PTR_SEG_OFF_TO_SEGPTR( thdb->teb.stack_sel,
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0x10000 - sizeof(STACK16FRAME) );
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}
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/* Allocate the event */
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if (!(thdb->event = EVENT_Create( TRUE, FALSE ))) goto error;
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/* Create the thread socket */
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if (CLIENT_NewThread( thdb, server_thandle, server_phandle )) goto error;
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/* Add thread to process's list of threads */
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THREAD_AddQueue( &pdb->thread_list, thdb );
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/* Initialize the thread context */
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GET_CS(cs);
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GET_DS(ds);
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thdb->pcontext = &thdb->context;
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thdb->context.SegCs = cs;
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thdb->context.SegDs = ds;
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thdb->context.SegEs = ds;
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thdb->context.SegGs = ds;
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thdb->context.SegSs = ds;
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thdb->context.SegFs = thdb->teb_sel;
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thdb->context.Eip = (DWORD)start_addr;
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thdb->context.Esp = (DWORD)thdb->teb.stack_top;
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PE_InitTls( thdb );
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return thdb;
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error:
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if (thdb->socket != -1) close( thdb->socket );
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if (thdb->event) K32OBJ_DecCount( thdb->event );
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if (thdb->teb.stack_sel) SELECTOR_FreeBlock( thdb->teb.stack_sel, 1 );
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if (thdb->teb_sel) SELECTOR_FreeBlock( thdb->teb_sel, 1 );
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if (thdb->stack_base) VirtualFree( thdb->stack_base, 0, MEM_RELEASE );
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HeapFree( SystemHeap, 0, thdb );
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return NULL;
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}
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/***********************************************************************
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* THREAD_Signaled
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*/
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static BOOL32 THREAD_Signaled( K32OBJ *obj, DWORD thread_id )
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{
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THDB *thdb = (THDB *)obj;
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assert( obj->type == K32OBJ_THREAD );
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return K32OBJ_OPS( thdb->event )->signaled( thdb->event, thread_id );
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}
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/***********************************************************************
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* THREAD_Satisfied
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*
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* Wait on this object has been satisfied.
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*/
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static BOOL32 THREAD_Satisfied( K32OBJ *obj, DWORD thread_id )
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{
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THDB *thdb = (THDB *)obj;
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assert( obj->type == K32OBJ_THREAD );
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return K32OBJ_OPS( thdb->event )->satisfied( thdb->event, thread_id );
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}
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/***********************************************************************
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* THREAD_AddWait
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*
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* Add thread to object wait queue.
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*/
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static void THREAD_AddWait( K32OBJ *obj, DWORD thread_id )
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{
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THDB *thdb = (THDB *)obj;
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assert( obj->type == K32OBJ_THREAD );
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return K32OBJ_OPS( thdb->event )->add_wait( thdb->event, thread_id );
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}
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/***********************************************************************
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* THREAD_RemoveWait
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*
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* Remove thread from object wait queue.
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*/
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static void THREAD_RemoveWait( K32OBJ *obj, DWORD thread_id )
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{
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THDB *thdb = (THDB *)obj;
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assert( obj->type == K32OBJ_THREAD );
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return K32OBJ_OPS( thdb->event )->remove_wait( thdb->event, thread_id );
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}
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/***********************************************************************
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* THREAD_Destroy
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*/
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static void THREAD_Destroy( K32OBJ *ptr )
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{
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THDB *thdb = (THDB *)ptr;
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assert( ptr->type == K32OBJ_THREAD );
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ptr->type = K32OBJ_UNKNOWN;
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/* Free the associated memory */
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#ifdef __i386__
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{
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/* Check if we are deleting the current thread */
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WORD fs;
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GET_FS( fs );
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if (fs == thdb->teb_sel)
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{
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GET_DS( fs );
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SET_FS( fs );
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}
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}
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#endif
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close( thdb->socket );
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K32OBJ_DecCount( thdb->event );
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SELECTOR_FreeBlock( thdb->teb_sel, 1 );
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if (thdb->teb.stack_sel) SELECTOR_FreeBlock( thdb->teb.stack_sel, 1 );
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HeapFree( SystemHeap, 0, thdb );
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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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void THREAD_Start( THDB *thdb )
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{
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LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)thdb->entry_point;
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assert( THREAD_Current() == thdb );
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CLIENT_InitThread();
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PE_InitializeDLLs( thdb->process, DLL_THREAD_ATTACH, NULL );
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ExitThread( func( thdb->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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HANDLE32 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 server_handle = -1;
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HANDLE32 handle = INVALID_HANDLE_VALUE32;
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BOOL32 inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
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THDB *thread = THREAD_Create( PROCESS_Current(), stack,
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TRUE, &server_handle, NULL, start, param );
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if (!thread) return INVALID_HANDLE_VALUE32;
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handle = HANDLE_Alloc( PROCESS_Current(), &thread->header,
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THREAD_ALL_ACCESS, inherit, server_handle );
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if (handle == INVALID_HANDLE_VALUE32) goto error;
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if (SYSDEPS_SpawnThread( thread ) == -1) goto error;
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*id = THDB_TO_THREAD_ID( thread );
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return handle;
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error:
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if (handle != INVALID_HANDLE_VALUE32) CloseHandle( handle );
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K32OBJ_DecCount( &thread->header );
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return INVALID_HANDLE_VALUE32;
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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(
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DWORD code) /* [in] Exit code for this thread */
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{
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THDB *thdb = THREAD_Current();
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LONG count;
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/* Remove thread from process's list */
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THREAD_RemoveQueue( &thdb->process->thread_list, thdb );
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PE_InitializeDLLs( thdb->process, DLL_THREAD_DETACH, NULL );
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SYSTEM_LOCK();
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thdb->exit_code = code;
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EVENT_Set( thdb->event );
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/* Abandon all owned mutexes */
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while (thdb->mutex_list) MUTEX_Abandon( thdb->mutex_list );
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/* FIXME: should free the stack somehow */
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#if 0
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/* FIXME: We cannot do this; once the current thread is destroyed,
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synchronization primitives do not work properly. */
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K32OBJ_DecCount( &thdb->header );
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#endif
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/* Completely unlock the system lock just in case */
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count = SYSTEM_LOCK_COUNT();
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while (count--) SYSTEM_UNLOCK();
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SYSDEPS_ExitThread();
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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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HANDLE32 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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* GetCurrentThreadId [KERNEL32.201] Returns thread identifier.
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*
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* RETURNS
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* Thread identifier of calling thread
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*/
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DWORD WINAPI GetCurrentThreadId(void)
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{
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return THDB_TO_THREAD_ID( THREAD_Current() );
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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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THDB *thread = THREAD_Current();
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DWORD ret = thread->last_error;
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TRACE(thread,"0x%lx\n",ret);
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return ret;
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}
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/**********************************************************************
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* SetLastError [KERNEL.147] [KERNEL32.497] 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 SetLastError(
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DWORD error) /* [in] Per-thread error code */
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{
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THDB *thread = THREAD_Current();
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/* This one must work before we have a thread (FIXME) */
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TRACE(thread,"%p error=0x%lx\n",thread,error);
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if (thread)
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thread->last_error = 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(thread, "(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(thread, "(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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* THREAD_TlsAlloc
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*/
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DWORD THREAD_TlsAlloc(THDB *thread)
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{
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DWORD i, mask, ret = 0;
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DWORD *bits = thread->process->tls_bits;
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EnterCriticalSection( &thread->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( &thread->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( &thread->process->crit_section );
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return ret + i;
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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
|
|
* Failure: 0xFFFFFFFF
|
|
*/
|
|
DWORD WINAPI TlsAlloc(void)
|
|
{
|
|
return THREAD_TlsAlloc(THREAD_Current());
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* TlsFree [KERNEL32.531] Releases a TLS index.
|
|
*
|
|
* Releases a thread local storage index, making it available for reuse
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI TlsFree(
|
|
DWORD index) /* [in] TLS Index to free */
|
|
{
|
|
DWORD mask;
|
|
THDB *thread = THREAD_Current();
|
|
DWORD *bits = thread->process->tls_bits;
|
|
if (index >= 64)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return FALSE;
|
|
}
|
|
EnterCriticalSection( &thread->process->crit_section );
|
|
if (index >= 32) bits++;
|
|
mask = (1 << (index & 31));
|
|
if (!(*bits & mask)) /* already free? */
|
|
{
|
|
LeaveCriticalSection( &thread->process->crit_section );
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return FALSE;
|
|
}
|
|
*bits &= ~mask;
|
|
thread->tls_array[index] = 0;
|
|
/* FIXME: should zero all other thread values */
|
|
LeaveCriticalSection( &thread->process->crit_section );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* TlsGetValue [KERNEL32.532] Gets value in a thread's TLS slot
|
|
*
|
|
* RETURNS
|
|
* Success: Value stored in calling thread's TLS slot for index
|
|
* Failure: 0 and GetLastError returns NO_ERROR
|
|
*/
|
|
LPVOID WINAPI TlsGetValue(
|
|
DWORD index) /* [in] TLS index to retrieve value for */
|
|
{
|
|
THDB *thread = THREAD_Current();
|
|
if (index >= 64)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return NULL;
|
|
}
|
|
SetLastError( ERROR_SUCCESS );
|
|
return thread->tls_array[index];
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* TlsSetValue [KERNEL32.533] Stores a value in the thread's TLS slot.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI TlsSetValue(
|
|
DWORD index, /* [in] TLS index to set value for */
|
|
LPVOID value) /* [in] Value to be stored */
|
|
{
|
|
THDB *thread = THREAD_Current();
|
|
if (index >= 64)
|
|
{
|
|
SetLastError( ERROR_INVALID_PARAMETER );
|
|
return FALSE;
|
|
}
|
|
thread->tls_array[index] = value;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetThreadContext [KERNEL32.670] Sets context of thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI SetThreadContext(
|
|
HANDLE32 handle, /* [in] Handle to thread with context */
|
|
CONTEXT *context) /* [out] Address of context structure */
|
|
{
|
|
THDB *thread = THREAD_GetPtr( handle, THREAD_GET_CONTEXT, NULL );
|
|
if (!thread) return FALSE;
|
|
*context = thread->context;
|
|
K32OBJ_DecCount( &thread->header );
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* GetThreadContext [KERNEL32.294] Retrieves context of thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI GetThreadContext(
|
|
HANDLE32 handle, /* [in] Handle to thread with context */
|
|
CONTEXT *context) /* [out] Address of context structure */
|
|
{
|
|
THDB *thread = THREAD_GetPtr( handle, THREAD_GET_CONTEXT, NULL );
|
|
if (!thread) return FALSE;
|
|
*context = thread->context;
|
|
K32OBJ_DecCount( &thread->header );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetThreadPriority [KERNEL32.296] Returns priority for thread.
|
|
*
|
|
* RETURNS
|
|
* Success: Thread's priority level.
|
|
* Failure: THREAD_PRIORITY_ERROR_RETURN
|
|
*/
|
|
INT32 WINAPI GetThreadPriority(
|
|
HANDLE32 hthread) /* [in] Handle to thread */
|
|
{
|
|
THDB *thread;
|
|
INT32 ret;
|
|
|
|
if (!(thread = THREAD_GetPtr( hthread, THREAD_QUERY_INFORMATION, NULL )))
|
|
return THREAD_PRIORITY_ERROR_RETURN;
|
|
ret = thread->delta_priority;
|
|
K32OBJ_DecCount( &thread->header );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SetThreadPriority [KERNEL32.514] Sets priority for thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI SetThreadPriority(
|
|
HANDLE32 hthread, /* [in] Handle to thread */
|
|
INT32 priority) /* [in] Thread priority level */
|
|
{
|
|
THDB *thread;
|
|
|
|
if (!(thread = THREAD_GetPtr( hthread, THREAD_SET_INFORMATION, NULL )))
|
|
return FALSE;
|
|
thread->delta_priority = priority;
|
|
K32OBJ_DecCount( &thread->header );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* TerminateThread [KERNEL32.685] Terminates a thread
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI TerminateThread(
|
|
HANDLE32 handle, /* [in] Handle to thread */
|
|
DWORD exitcode) /* [in] Exit code for thread */
|
|
{
|
|
int server_handle;
|
|
BOOL32 ret;
|
|
THDB *thread;
|
|
|
|
if (!(thread = THREAD_GetPtr( handle, THREAD_TERMINATE, &server_handle )))
|
|
return FALSE;
|
|
ret = !CLIENT_TerminateThread( server_handle, exitcode );
|
|
K32OBJ_DecCount( &thread->header );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetExitCodeThread [KERNEL32.???] Gets termination status of thread.
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI GetExitCodeThread(
|
|
HANDLE32 hthread, /* [in] Handle to thread */
|
|
LPDWORD exitcode) /* [out] Address to receive termination status */
|
|
{
|
|
THDB *thread;
|
|
int server_handle;
|
|
|
|
if (!(thread = THREAD_GetPtr( hthread, THREAD_QUERY_INFORMATION, &server_handle )))
|
|
return FALSE;
|
|
if (server_handle != -1)
|
|
{
|
|
struct get_thread_info_reply info;
|
|
CLIENT_GetThreadInfo( server_handle, &info );
|
|
if (exitcode) *exitcode = info.exit_code;
|
|
}
|
|
else if (exitcode) *exitcode = thread->exit_code;
|
|
K32OBJ_DecCount( &thread->header );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* 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(
|
|
HANDLE32 hthread) /* [in] Indentifies thread to restart */
|
|
{
|
|
THDB *thread;
|
|
DWORD oldcount;
|
|
|
|
SYSTEM_LOCK();
|
|
if (!(thread = THREAD_GetPtr( hthread, THREAD_QUERY_INFORMATION, NULL )))
|
|
{
|
|
SYSTEM_UNLOCK();
|
|
WARN(thread, "Invalid thread handle\n");
|
|
return 0xFFFFFFFF;
|
|
}
|
|
if ((oldcount = thread->suspend_count) != 0)
|
|
{
|
|
if (!--thread->suspend_count)
|
|
{
|
|
if (kill(thread->unix_pid, SIGCONT))
|
|
{
|
|
WARN(thread, "Unable to CONTinue pid: %04x\n",
|
|
thread->unix_pid);
|
|
oldcount = 0xFFFFFFFF;
|
|
}
|
|
}
|
|
}
|
|
K32OBJ_DecCount(&thread->header);
|
|
SYSTEM_UNLOCK();
|
|
return oldcount;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* SuspendThread [KERNEL32.681] Suspends a thread.
|
|
*
|
|
* RETURNS
|
|
* Success: Previous suspend count
|
|
* Failure: 0xFFFFFFFF
|
|
*/
|
|
DWORD WINAPI SuspendThread(
|
|
HANDLE32 hthread) /* [in] Handle to the thread */
|
|
{
|
|
THDB *thread;
|
|
DWORD oldcount;
|
|
|
|
SYSTEM_LOCK();
|
|
if (!(thread = THREAD_GetPtr( hthread, THREAD_QUERY_INFORMATION, NULL )))
|
|
{
|
|
SYSTEM_UNLOCK();
|
|
WARN(thread, "Invalid thread handle\n");
|
|
return 0xFFFFFFFF;
|
|
}
|
|
|
|
if (!(oldcount = thread->suspend_count))
|
|
{
|
|
if (thread->unix_pid == getpid())
|
|
WARN(thread, "Attempting to suspend myself\n" );
|
|
else
|
|
{
|
|
if (kill(thread->unix_pid, SIGSTOP))
|
|
{
|
|
WARN(thread, "Unable to STOP pid: %04x\n",
|
|
thread->unix_pid);
|
|
oldcount = 0xFFFFFFFF;
|
|
}
|
|
else thread->suspend_count++;
|
|
}
|
|
}
|
|
else thread->suspend_count++;
|
|
K32OBJ_DecCount( &thread->header );
|
|
SYSTEM_UNLOCK();
|
|
return oldcount;
|
|
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* GetThreadTimes [KERNEL32.???] Obtains timing information.
|
|
*
|
|
* NOTES
|
|
* What are the fields where these values are stored?
|
|
*
|
|
* RETURNS
|
|
* Success: TRUE
|
|
* Failure: FALSE
|
|
*/
|
|
BOOL32 WINAPI GetThreadTimes(
|
|
HANDLE32 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(thread,"(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
|
|
*/
|
|
BOOL32 WINAPI AttachThreadInput(
|
|
DWORD idAttach, /* [in] Thread to attach */
|
|
DWORD idAttachTo, /* [in] Thread to attach to */
|
|
BOOL32 fAttach) /* [in] Attach or detach */
|
|
{
|
|
BOOL32 ret;
|
|
|
|
FIXME(thread, "(0x%08lx,0x%08lx,%d): stub\n",idAttach,idAttachTo,fAttach);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
if (fAttach) {
|
|
/* Attach threads */
|
|
ret = FALSE;
|
|
}
|
|
else {
|
|
/* Detach threads */
|
|
ret = FALSE;
|
|
};
|
|
return ret;
|
|
}
|
|
|