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Sweden-Number/dlls/kernel/thread.c

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/*
* Win32 threads
*
* Copyright 1996 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/types.h>
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "ntstatus.h"
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "winnls.h"
#include "module.h"
#include "thread.h"
#include "wine/winbase16.h"
#include "wine/library.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(thread);
WINE_DECLARE_DEBUG_CHANNEL(relay);
/* TEB of the initial thread */
static TEB initial_teb;
extern struct _PDB current_process;
/***********************************************************************
* THREAD_InitTEB
*
* Initialization of a newly created TEB.
*/
static BOOL THREAD_InitTEB( TEB *teb )
{
teb->Tib.ExceptionList = (void *)~0UL;
teb->Tib.StackBase = (void *)~0UL;
teb->Tib.Self = &teb->Tib;
teb->tibflags = TEBF_WIN32;
teb->exit_code = STILL_ACTIVE;
teb->request_fd = -1;
teb->reply_fd = -1;
teb->wait_fd[0] = -1;
teb->wait_fd[1] = -1;
teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
InitializeListHead(&teb->TlsLinks);
teb->teb_sel = wine_ldt_alloc_fs();
return (teb->teb_sel != 0);
}
/***********************************************************************
* THREAD_InitStack
*
* Allocate the stack of a thread.
*/
TEB *THREAD_InitStack( TEB *teb, DWORD stack_size )
{
DWORD old_prot, total_size;
DWORD page_size = getpagesize();
void *base;
/* Allocate the stack */
/* if size is smaller than default, get stack size from parent */
if (stack_size < 1024 * 1024)
{
if (teb)
stack_size = 1024 * 1024; /* no parent */
else
stack_size = ((char *)NtCurrentTeb()->Tib.StackBase
- (char *)NtCurrentTeb()->DeallocationStack
- SIGNAL_STACK_SIZE - 3 * page_size);
}
/* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
stack_size += 64 * 1024;
/* Memory layout in allocated block:
*
* size contents
* 1 page NOACCESS guard page
* SIGNAL_STACK_SIZE signal stack
* 1 page NOACCESS guard page
* 1 page PAGE_GUARD guard page
* stack_size normal stack
* 1 page TEB (except for initial thread)
*/
stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
total_size = stack_size + SIGNAL_STACK_SIZE + 3 * page_size;
if (!teb) total_size += page_size;
if (!(base = VirtualAlloc( NULL, total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
return NULL;
if (!teb)
{
teb = (TEB *)((char *)base + total_size - page_size);
if (!THREAD_InitTEB( teb ))
{
VirtualFree( base, 0, MEM_RELEASE );
return NULL;
}
}
teb->DeallocationStack = base;
teb->signal_stack = (char *)base + page_size;
teb->Tib.StackBase = (char *)base + 3 * page_size + SIGNAL_STACK_SIZE + stack_size;
teb->Tib.StackLimit = base; /* note: limit is lower than base since the stack grows down */
/* Setup guard pages */
VirtualProtect( base, 1, PAGE_NOACCESS, &old_prot );
VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE, 1, PAGE_NOACCESS, &old_prot );
VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE + page_size, 1,
PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
return teb;
}
/***********************************************************************
* THREAD_Init
*
* Setup the initial thread.
*
* NOTES: The first allocated TEB on NT is at 0x7ffde000.
*/
void THREAD_Init(void)
{
static struct debug_info info; /* debug info for initial thread */
if (!initial_teb.Tib.Self) /* do it only once */
{
THREAD_InitTEB( &initial_teb );
assert( initial_teb.teb_sel );
info.str_pos = info.strings;
info.out_pos = info.output;
initial_teb.debug_info = &info;
initial_teb.Peb = (PEB *)&current_process; /* FIXME */
SYSDEPS_SetCurThread( &initial_teb );
}
}
DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
/***********************************************************************
* THREAD_Start
*
* Start execution of a newly created thread. Does not return.
*/
static void THREAD_Start( TEB *teb )
{
LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)teb->entry_point;
struct debug_info info;
info.str_pos = info.strings;
info.out_pos = info.output;
teb->debug_info = &info;
SYSDEPS_SetCurThread( teb );
SIGNAL_Init();
wine_server_init_thread();
if (TRACE_ON(relay))
DPRINTF("%04lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func );
__TRY
{
MODULE_DllThreadAttach( NULL );
ExitThread( func( NtCurrentTeb()->entry_arg ) );
}
__EXCEPT(UnhandledExceptionFilter)
{
TerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
}
/***********************************************************************
* CreateThread (KERNEL32.@)
*/
HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, SIZE_T stack,
LPTHREAD_START_ROUTINE start, LPVOID param,
DWORD flags, LPDWORD id )
{
HANDLE handle = 0;
TEB *teb;
DWORD tid = 0;
int request_pipe[2];
if (pipe( request_pipe ) == -1)
{
SetLastError( ERROR_TOO_MANY_OPEN_FILES );
return 0;
}
fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
wine_server_send_fd( request_pipe[0] );
SERVER_START_REQ( new_thread )
{
req->suspend = ((flags & CREATE_SUSPENDED) != 0);
req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
req->request_fd = request_pipe[0];
if (!wine_server_call_err( req ))
{
handle = reply->handle;
tid = reply->tid;
}
close( request_pipe[0] );
}
SERVER_END_REQ;
if (!handle || !(teb = THREAD_InitStack( NULL, stack )))
{
close( request_pipe[1] );
return 0;
}
teb->Peb = NtCurrentTeb()->Peb;
teb->ClientId.UniqueThread = (HANDLE)tid;
teb->request_fd = request_pipe[1];
teb->entry_point = start;
teb->entry_arg = param;
teb->htask16 = GetCurrentTask();
RtlAcquirePebLock();
InsertHeadList( &NtCurrentTeb()->TlsLinks, &teb->TlsLinks );
RtlReleasePebLock();
if (id) *id = tid;
if (SYSDEPS_SpawnThread( THREAD_Start, teb ) == -1)
{
CloseHandle( handle );
close( request_pipe[1] );
RtlAcquirePebLock();
RemoveEntryList( &teb->TlsLinks );
RtlReleasePebLock();
wine_ldt_free_fs( teb->teb_sel );
VirtualFree( teb->DeallocationStack, 0, MEM_RELEASE );
return 0;
}
return handle;
}
/***********************************************************************
* OpenThread [KERNEL32.@] Retrieves a handle to a thread from its thread id
*/
HANDLE WINAPI OpenThread( DWORD dwDesiredAccess, BOOL bInheritHandle, DWORD dwThreadId )
{
HANDLE ret = 0;
SERVER_START_REQ( open_thread )
{
req->tid = dwThreadId;
req->access = dwDesiredAccess;
req->inherit = bInheritHandle;
if (!wine_server_call_err( req )) ret = reply->handle;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* ExitThread [KERNEL32.@] Ends a thread
*
* RETURNS
* None
*/
void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
{
BOOL last;
SERVER_START_REQ( terminate_thread )
{
/* send the exit code to the server */
req->handle = GetCurrentThread();
req->exit_code = code;
wine_server_call( req );
last = reply->last;
}
SERVER_END_REQ;
if (last)
{
LdrShutdownProcess();
exit( code );
}
else
{
LdrShutdownThread();
RtlAcquirePebLock();
RemoveEntryList( &NtCurrentTeb()->TlsLinks );
RtlReleasePebLock();
SYSDEPS_ExitThread( code );
}
}
/**********************************************************************
* TerminateThread [KERNEL32.@] Terminates a thread
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI TerminateThread( HANDLE handle, /* [in] Handle to thread */
DWORD exit_code) /* [in] Exit code for thread */
{
NTSTATUS status = NtTerminateThread( handle, exit_code );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/***********************************************************************
* FreeLibraryAndExitThread (KERNEL32.@)
*/
void WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
{
FreeLibrary(hLibModule);
ExitThread(dwExitCode);
}
/**********************************************************************
* 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 */
{
THREAD_BASIC_INFORMATION info;
NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
&info, sizeof(info), NULL );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
if (exitcode) *exitcode = info.ExitStatus;
return TRUE;
}
/***********************************************************************
* SetThreadContext [KERNEL32.@] Sets context of thread.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI SetThreadContext( HANDLE handle, /* [in] Handle to thread with context */
const CONTEXT *context ) /* [in] Address of context structure */
{
NTSTATUS status = NtSetContextThread( handle, context );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/***********************************************************************
* GetThreadContext [KERNEL32.@] 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 */
{
NTSTATUS status = NtGetContextThread( handle, context );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/**********************************************************************
* SuspendThread [KERNEL32.@] Suspends a thread.
*
* RETURNS
* Success: Previous suspend count
* Failure: 0xFFFFFFFF
*/
DWORD WINAPI SuspendThread( HANDLE hthread ) /* [in] Handle to the thread */
{
DWORD ret;
NTSTATUS status = NtSuspendThread( hthread, &ret );
if (status)
{
ret = ~0U;
SetLastError( RtlNtStatusToDosError(status) );
}
return ret;
}
/**********************************************************************
* ResumeThread [KERNEL32.@] 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;
NTSTATUS status = NtResumeThread( hthread, &ret );
if (status)
{
ret = ~0U;
SetLastError( RtlNtStatusToDosError(status) );
}
return ret;
}
/**********************************************************************
* GetThreadPriority [KERNEL32.@] Returns priority for thread.
*
* RETURNS
* Success: Thread's priority level.
* Failure: THREAD_PRIORITY_ERROR_RETURN
*/
INT WINAPI GetThreadPriority(
HANDLE hthread) /* [in] Handle to thread */
{
THREAD_BASIC_INFORMATION info;
NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
&info, sizeof(info), NULL );
if (status)
{
SetLastError( RtlNtStatusToDosError(status) );
return THREAD_PRIORITY_ERROR_RETURN;
}
return info.Priority;
}
/**********************************************************************
* SetThreadPriority [KERNEL32.@] Sets priority for thread.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI SetThreadPriority(
HANDLE hthread, /* [in] Handle to thread */
INT priority) /* [in] Thread priority level */
{
BOOL ret;
SERVER_START_REQ( set_thread_info )
{
req->handle = hthread;
req->priority = priority;
req->mask = SET_THREAD_INFO_PRIORITY;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* GetThreadPriorityBoost [KERNEL32.@] Returns priority boost for thread.
*
* Always reports that priority boost is disabled.
*
* RETURNS
* Success: TRUE.
* Failure: FALSE
*/
BOOL WINAPI GetThreadPriorityBoost(
HANDLE hthread, /* [in] Handle to thread */
PBOOL pstate) /* [out] pointer to var that receives the boost state */
{
if (pstate) *pstate = FALSE;
return NO_ERROR;
}
/**********************************************************************
* SetThreadPriorityBoost [KERNEL32.@] Sets priority boost for thread.
*
* Priority boost is not implemented. Thsi function always returns
* FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
*
* RETURNS
* Always returns FALSE to indicate a failure
*/
BOOL WINAPI SetThreadPriorityBoost(
HANDLE hthread, /* [in] Handle to thread */
BOOL disable) /* [in] TRUE to disable priority boost */
{
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
/**********************************************************************
* SetThreadAffinityMask (KERNEL32.@)
*/
DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
{
DWORD ret;
SERVER_START_REQ( set_thread_info )
{
req->handle = hThread;
req->affinity = dwThreadAffinityMask;
req->mask = SET_THREAD_INFO_AFFINITY;
ret = !wine_server_call_err( req );
/* FIXME: should return previous value */
}
SERVER_END_REQ;
return ret;
}
/**********************************************************************
* SetThreadIdealProcessor [KERNEL32.@] Obtains timing information.
*
* RETURNS
* Success: Value of last call to SetThreadIdealProcessor
* Failure: -1
*/
DWORD WINAPI SetThreadIdealProcessor(
HANDLE hThread, /* [in] Specifies the thread of interest */
DWORD dwIdealProcessor) /* [in] Specifies the new preferred processor */
{
FIXME("(%p): stub\n",hThread);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return -1L;
}
/* callback for QueueUserAPC */
static void CALLBACK call_user_apc( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 )
{
PAPCFUNC func = (PAPCFUNC)arg1;
func( arg2 );
}
/***********************************************************************
* QueueUserAPC (KERNEL32.@)
*/
DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
{
NTSTATUS status = NtQueueApcThread( hthread, call_user_apc, (ULONG_PTR)func, data, 0 );
if (status) SetLastError( RtlNtStatusToDosError(status) );
return !status;
}
/**********************************************************************
* GetThreadTimes [KERNEL32.@] Obtains timing information.
*
* 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 */
{
BOOL ret = TRUE;
if (creationtime || exittime)
{
/* We need to do a server call to get the creation time or exit time */
/* This works on any thread */
SERVER_START_REQ( get_thread_info )
{
req->handle = thread;
req->tid_in = 0;
if ((ret = !wine_server_call_err( req )))
{
if (creationtime)
RtlSecondsSince1970ToTime( reply->creation_time, (LARGE_INTEGER*)creationtime );
if (exittime)
RtlSecondsSince1970ToTime( reply->exit_time, (LARGE_INTEGER*)exittime );
}
}
SERVER_END_REQ;
}
if (ret && (kerneltime || usertime))
{
/* We call times(2) for kernel time or user time */
/* We can only (portably) do this for the current thread */
if (thread == GetCurrentThread())
{
ULONGLONG time;
struct tms time_buf;
long clocks_per_sec = sysconf(_SC_CLK_TCK);
times(&time_buf);
if (kerneltime)
{
time = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
kerneltime->dwHighDateTime = time >> 32;
kerneltime->dwLowDateTime = (DWORD)time;
}
if (usertime)
{
time = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
usertime->dwHighDateTime = time >> 32;
usertime->dwLowDateTime = (DWORD)time;
}
}
else
{
if (kerneltime) kerneltime->dwHighDateTime = kerneltime->dwLowDateTime = 0;
if (usertime) usertime->dwHighDateTime = usertime->dwLowDateTime = 0;
FIXME("Cannot get kerneltime or usertime of other threads\n");
}
}
return ret;
}
/**********************************************************************
* 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);
}
/***********************************************************************
* GetCurrentThread [KERNEL32.@] Gets pseudohandle for current thread
*
* RETURNS
* Pseudohandle for the current thread
*/
#undef GetCurrentThread
HANDLE WINAPI GetCurrentThread(void)
{
return (HANDLE)0xfffffffe;
}
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