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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 <sys/types.h>
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "winbase.h"
#include "winerror.h"
#include "winnls.h"
#include "thread.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(thread);
/***********************************************************************
* 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;
}
/***********************************************************************
* SetThreadExecutionState (KERNEL32.@)
*
* Informs the system that activity is taking place for
* power management purposes.
*/
EXECUTION_STATE WINAPI SetThreadExecutionState(EXECUTION_STATE flags)
{
static EXECUTION_STATE current =
ES_SYSTEM_REQUIRED|ES_DISPLAY_REQUIRED|ES_USER_PRESENT;
EXECUTION_STATE old = current;
if (!(current & ES_CONTINUOUS) || (flags & ES_CONTINUOUS))
current = flags;
FIXME("(0x%lx): stub, harmless (power management).\n", flags);
return old;
}
/* 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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