4 * Copyright 1995 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
38 #include "wine/winbase16.h"
45 #include "selectors.h"
46 #include "wine/server.h"
47 #include "stackframe.h"
52 #include "wine/debug.h"
54 WINE_DEFAULT_DEBUG_CHANNEL(task
);
56 static THHOOK DefaultThhook
;
57 THHOOK
*pThhook
= &DefaultThhook
;
59 #define hFirstTask (pThhook->HeadTDB)
61 /***********************************************************************
64 static TDB
*TASK_GetPtr( HTASK16 hTask
)
66 return GlobalLock16( hTask
);
70 /***********************************************************************
73 TDB
*TASK_GetCurrent(void)
75 return TASK_GetPtr( GetCurrentTask() );
79 /***********************************************************************
80 * GetCurrentTask (KERNEL32.@)
82 HTASK16 WINAPI
GetCurrentTask(void)
84 return NtCurrentTeb()->htask16
;
87 /***********************************************************************
88 * GetCurrentPDB (KERNEL.37)
90 * UNDOC: returns PSP of KERNEL in high word
92 DWORD WINAPI
GetCurrentPDB16(void)
96 if (!(pTask
= TASK_GetCurrent())) return 0;
97 return MAKELONG(pTask
->hPDB
, 0); /* FIXME */
101 /***********************************************************************
104 static inline HMODULE16
GetExePtrHelper( HANDLE16 handle
, HTASK16
*hTask
)
109 /* Check for module handle */
111 if (!(ptr
= GlobalLock16( handle
))) return 0;
112 if (((NE_MODULE
*)ptr
)->magic
== IMAGE_OS2_SIGNATURE
) return handle
;
114 /* Search for this handle inside all tasks */
119 TDB
*pTask
= TASK_GetPtr( *hTask
);
120 if ((*hTask
== handle
) ||
121 (pTask
->hInstance
== handle
) ||
122 (pTask
->hQueue
== handle
) ||
123 (pTask
->hPDB
== handle
)) return pTask
->hModule
;
124 *hTask
= pTask
->hNext
;
127 /* Check the owner for module handle */
129 owner
= FarGetOwner16( handle
);
130 if (!(ptr
= GlobalLock16( owner
))) return 0;
131 if (((NE_MODULE
*)ptr
)->magic
== IMAGE_OS2_SIGNATURE
) return owner
;
133 /* Search for the owner inside all tasks */
138 TDB
*pTask
= TASK_GetPtr( *hTask
);
139 if ((*hTask
== owner
) ||
140 (pTask
->hInstance
== owner
) ||
141 (pTask
->hQueue
== owner
) ||
142 (pTask
->hPDB
== owner
)) return pTask
->hModule
;
143 *hTask
= pTask
->hNext
;
149 /***********************************************************************
150 * GetExePtr (KERNEL.133)
152 HMODULE16 WINAPI
WIN16_GetExePtr( HANDLE16 handle
)
155 HMODULE16 hModule
= GetExePtrHelper( handle
, &hTask
);
156 STACK16FRAME
*frame
= CURRENT_STACK16
;
157 frame
->ecx
= hModule
;
158 if (hTask
) frame
->es
= hTask
;
163 /***********************************************************************
166 HMODULE16 WINAPI
GetExePtr( HANDLE16 handle
)
169 return GetExePtrHelper( handle
, &hTask
);