/* * Thread definitions * * 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 */ #ifndef __WINE_THREAD_H #define __WINE_THREAD_H #include "winternl.h" #include "wine/windef16.h" struct __EXCEPTION_FRAME; struct _SECURITY_ATTRIBUTES; struct tagSYSLEVEL; struct server_buffer_info; struct fiber_data; struct debug_info { char *str_pos; /* current position in strings buffer */ char *out_pos; /* current position in output buffer */ char strings[1024]; /* buffer for temporary strings */ char output[1024]; /* current output line */ }; /* Thread exception block flags in the comment: 1-- win95 field d-- win95 debug version -2- nt field --3 wine special --n wine unused !-- or -!- likely or observed collision more problems (collected from mailing list): psapi.dll 0x10/0x30 (expects nt fields) ie4 0x40 PESHiELD 0x23/0x30 (win95) */ typedef struct _TEB { /* start of NT_TIB */ struct __EXCEPTION_FRAME *except; /* 12- 00 Head of exception handling chain */ void *stack_top; /* 12- 04 Top of thread stack */ void *stack_low; /* 12- 08 Stack low-water mark */ HTASK16 htask16; /* 1-- 0c Win16 task handle */ WORD stack_sel; /* 1-- 0e 16-bit stack selector */ struct fiber_data *fiber; /* -2- 10 Current fiber data (Win95: selector manager list) */ DWORD user_ptr; /* 12n 14 User pointer */ /* end of NT_TIB */ struct _TEB *self; /* 12- 18 Pointer to this structure */ WORD tibflags; /* 1!n 1c Flags (NT: EnvironmentPointer) */ WORD mutex_count; /* 1-n 1e Win16 mutex count */ DWORD pid; /* !2- 20 Process id (win95: debug context) */ DWORD tid; /* -2- 24 Thread id */ HQUEUE16 queue; /* 1!- 28 Message queue (NT: DWORD ActiveRpcHandle)*/ WORD pad1; /* --n 2a */ LPVOID *tls_ptr; /* 1-- 2c Pointer to TLS array */ PEB *Peb; /* 12- 30 owning process PEB */ DWORD flags; /* 1-n 34 */ DWORD exit_code; /* 1-- 38 Termination status */ WORD teb_sel; /* 1-- 3c Selector to TEB */ WORD emu_sel; /* 1-n 3e 80387 emulator selector */ DWORD unknown1; /* --n 40 */ DWORD unknown2; /* --n 44 */ DWORD unknown3; /* --n 48 */ int thread_errno; /* --3 4c Per-thread errno (was: ring0_thread) */ int thread_h_errno; /* --3 50 Per-thread h_errno (was: ptr to tdbx structure) */ void *signal_stack; /* --3 54 Signal stack (was: stack_base) */ void *exit_stack; /* 1-n 58 Exit stack */ void *emu_data; /* --n 5c Related to 80387 emulation */ DWORD last_error; /* 1-- 60 Last error code */ HANDLE debug_cb; /* 1-n 64 Debugger context block */ DWORD debug_thread; /* 1-n 68 Thread debugging this one (?) */ void *pcontext; /* 1-n 6c Thread register context */ DWORD cur_stack; /* --3 70 Current stack (was: unknown) */ DWORD ThunkConnect; /* 1-n 74 */ DWORD NegStackBase; /* 1-n 78 */ WORD current_ss; /* 1-n 7c Another 16-bit stack selector */ WORD pad2; /* --n 7e */ void *ss_table; /* --n 80 Pointer to info about 16-bit stack */ WORD thunk_ss; /* --n 84 Yet another 16-bit stack selector */ WORD pad3; /* --n 86 */ DWORD pad4[15]; /* --n 88 */ ULONG CurrentLocale; /* -2- C4 */ DWORD pad5[48]; /* --n C8 */ DWORD delta_priority; /* 1-n 188 Priority delta */ DWORD unknown4[7]; /* d-n 18c Unknown */ void *create_data; /* d-n 1a8 Pointer to creation structure */ DWORD suspend_count; /* d-n 1ac SuspendThread() counter */ void *entry_point; /* --3 1b0 Thread entry point (was: unknown) */ void *entry_arg; /* --3 1b4 Entry point arg (was: unknown) */ DWORD unknown5[4]; /* --n 1b8 Unknown */ DWORD sys_count[4]; /* --3 1c8 Syslevel mutex entry counters */ struct tagSYSLEVEL *sys_mutex[4]; /* --3 1d8 Syslevel mutex pointers */ DWORD unknown6[5]; /* --n 1e8 Unknown */ /* The following are Wine-specific fields (NT: GDI stuff) */ UINT code_page; /* --3 1fc Thread code page */ DWORD unused[2]; /* --3 200 Was server buffer */ DWORD gs_sel; /* --3 208 %gs selector for this thread */ int request_fd; /* --3 20c fd for sending server requests */ int reply_fd; /* --3 210 fd for receiving server replies */ int wait_fd[2]; /* --3 214 fd for sleeping server requests */ struct debug_info *debug_info; /* --3 21c Info for debugstr functions */ void *pthread_data; /* --3 220 Data for pthread emulation */ struct async_private *pending_list; /* --3 224 list of pending async operations */ void *driver_data; /* --3 228 Graphics driver private data */ DWORD dpmi_vif; /* --3 22c Protected mode virtual interrupt flag */ DWORD vm86_pending; /* --3 230 Data for vm86 mode */ void *vm86_ptr; /* --3 234 Data for vm86 mode */ /* here is plenty space for wine specific fields (don't forget to change pad6!!) */ /* the following are nt specific fields */ DWORD pad6[624]; /* --n 238 */ UNICODE_STRING StaticUnicodeString; /* -2- bf8 used by advapi32 */ USHORT StaticUnicodeBuffer[261]; /* -2- c00 used by advapi32 */ void *stack_base; /* -2- e0c Base of the stack */ LPVOID tls_array[64]; /* -2- e10 Thread local storage */ DWORD pad8[3]; /* --n f10 */ PVOID ReservedForNtRpc; /* -2- f1c used by rpcrt4 */ DWORD pad9[24]; /* --n f20 */ PVOID ErrorInfo; /* -2- f80 used by ole32 (IErrorInfo*) */ } TEB; /* Thread exception flags */ #define TEBF_WIN32 0x0001 #define TEBF_TRAP 0x0002 /* The per-thread signal stack size */ #define SIGNAL_STACK_SIZE 0x100000 /* 1Mb FIXME: should be much smaller than that */ /* scheduler/thread.c */ extern void THREAD_Init(void); extern TEB *THREAD_InitStack( TEB *teb, DWORD stack_size ); extern TEB *THREAD_IdToTEB( DWORD id ); /* scheduler/sysdeps.c */ extern int SYSDEPS_SpawnThread( void (*func)(TEB *), TEB *teb ); extern void SYSDEPS_SetCurThread( TEB *teb ); extern int SYSDEPS_GetUnixTid(void); extern void DECLSPEC_NORETURN SYSDEPS_ExitThread( int status ); extern void DECLSPEC_NORETURN SYSDEPS_AbortThread( int status ); extern void DECLSPEC_NORETURN SYSDEPS_SwitchToThreadStack( void (*func)(void *), void *arg ); /* signal handling */ extern BOOL SIGNAL_Init(void); extern void SIGNAL_Block(void); extern void SIGNAL_Unblock(void); extern void SIGNAL_Reset(void); #endif /* __WINE_THREAD_H */