/* * Thread definitions * * Copyright 1996 Alexandre Julliard */ #ifndef __WINE_THREAD_H #define __WINE_THREAD_H #include "config.h" #include "k32obj.h" #include "windows.h" #include "winbase.h" #include "winnt.h" #include "selectors.h" /* for SET_FS */ #ifdef linux #define HAVE_CLONE_SYSCALL #endif /* This is what we will use on *BSD, once threads using rfork() get * implemented: * * #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) * #define HAVE_RFORK * #endif */ #if (defined(HAVE_CLONE_SYSCALL) || defined(HAVE_RFORK)) && !defined(NO_REENTRANT_LIBC) #define USE_THREADS #endif struct _PDB32; /* Thread exception block */ typedef struct _TEB { void *except; /* 00 Head of exception handling chain */ void *stack_top; /* 04 Top of thread stack */ void *stack_low; /* 08 Stack low-water mark */ HTASK16 htask16; /* 0c Win16 task handle */ WORD stack_sel; /* 0e 16-bit stack selector */ DWORD selman_list; /* 10 Selector manager list */ DWORD user_ptr; /* 14 User pointer */ struct _TEB *self; /* 18 Pointer to this structure */ WORD flags; /* 1c Flags */ WORD mutex_count; /* 1e Win16 mutex count */ DWORD debug_context; /* 20 Debug context */ DWORD *ppriority; /* 24 Pointer to current priority */ HQUEUE16 queue; /* 28 Message queue */ WORD pad1; /* 2a */ LPVOID *tls_ptr; /* 2c Pointer to TLS array */ struct _PDB32 *process; /* 30 owning process (used by NT3.51 applets)*/ } TEB; /* Event waiting structure */ typedef struct { DWORD count; /* Count of valid objects */ DWORD signaled; /* Index of signaled object (or WAIT_FAILED)*/ BOOL32 wait_all; /* Wait for all objects flag */ BOOL32 wait_msg; /* Wait for message flag */ K32OBJ *objs[MAXIMUM_WAIT_OBJECTS]; /* Object pointers */ int server[MAXIMUM_WAIT_OBJECTS]; /* Server handles */ } WAIT_STRUCT; /* Thread database */ typedef struct _THDB { K32OBJ header; /* 00 Kernel object header */ struct _PDB32 *process; /* 08 Process owning this thread */ K32OBJ *event; /* 0c Thread event */ TEB teb; /* 10 Thread exception block */ DWORD flags; /* 44 Flags */ DWORD exit_code; /* 48 Termination status */ WORD teb_sel; /* 4c Selector to TEB */ WORD emu_sel; /* 4e 80387 emulator selector */ int thread_errno; /* 50 Per-thread errno (was: unknown) */ WAIT_STRUCT *wait_list; /* 54 Event waiting list */ int thread_h_errno; /* 50 Per-thread h_errno (was: unknown) */ void *ring0_thread; /* 5c Pointer to ring 0 thread */ void *ptdbx; /* 60 Pointer to TDBX structure */ void *stack_base; /* 64 Base of the stack */ void *exit_stack; /* 68 Stack pointer on thread exit */ void *emu_data; /* 6c Related to 80387 emulation */ DWORD last_error; /* 70 Last error code */ void *debugger_CB; /* 74 Debugger context block */ DWORD debug_thread; /* 78 Thread debugging this one (?) */ void *pcontext; /* 7c Thread register context */ DWORD cur_stack; /* 80 Current stack (was: unknown) */ DWORD unknown3[2]; /* 84 Unknown */ WORD current_ss; /* 8c Another 16-bit stack selector */ WORD pad2; /* 8e */ void *ss_table; /* 90 Pointer to info about 16-bit stack */ WORD thunk_ss; /* 94 Yet another 16-bit stack selector */ WORD pad3; /* 96 */ LPVOID tls_array[64]; /* 98 Thread local storage */ DWORD delta_priority; /* 198 Priority delta */ DWORD unknown4[7]; /* 19c Unknown */ void *create_data; /* 1b8 Pointer to creation structure */ DWORD suspend_count; /* 1bc SuspendThread() counter */ void *entry_point; /* 1c0 Thread entry point (was: unknown) */ void *entry_arg; /* 1c4 Entry point arg (was: unknown) */ int unix_pid; /* 1c8 Unix thread pid (was: unknown) */ K32OBJ *mutex_list; /* 1cc List of owned mutex (was: unknown)*/ DWORD unknown5[2]; /* 1d0 Unknown */ DWORD sys_count[4]; /* 1d8 Syslevel mutex entry counters */ CRITICAL_SECTION *sys_mutex[4];/* 1e8 Syslevel mutex pointers */ DWORD unknown6[2]; /* 1f8 Unknown */ /* The following are Wine-specific fields */ CONTEXT context; /* 200 Thread context */ WAIT_STRUCT wait_struct; /* Event wait structure */ int socket; /* Socket for server communication */ unsigned int seq; /* Server sequence number */ void *server_tid; /* Server id for this thread */ } THDB; /* Thread queue entry */ typedef struct _THREAD_ENTRY { THDB *thread; struct _THREAD_ENTRY *next; } THREAD_ENTRY; /* A thread queue is a circular list; a THREAD_QUEUE is a pointer */ /* to the end of the queue (i.e. where we add elements) */ typedef THREAD_ENTRY *THREAD_QUEUE; /* THDB <-> Thread id conversion macros */ #define THREAD_OBFUSCATOR ((DWORD)0xdeadbeef) #define THREAD_ID_TO_THDB(id) ((THDB *)((id) ^ THREAD_OBFUSCATOR)) #define THDB_TO_THREAD_ID(thdb) ((DWORD)(thdb) ^ THREAD_OBFUSCATOR) /* The pseudo handle value returned by GetCurrentThread */ #define CURRENT_THREAD_PSEUDOHANDLE 0xfffffffe #ifdef __i386__ /* On the i386, the current thread is in the %fs register */ # define SET_CUR_THREAD(thdb) SET_FS((thdb)->teb_sel) #else extern THDB *pCurrentThread; # define SET_CUR_THREAD(thdb) (pCurrentThread = (thdb)) #endif /* __i386__ */ /* scheduler/thread.c */ extern THDB *THREAD_Create( struct _PDB32 *pdb, DWORD stack_size, BOOL32 alloc_stack16, int *server_thandle, int *server_phandle, LPTHREAD_START_ROUTINE start_addr, LPVOID param ); extern THDB *THREAD_Current(void); extern BOOL32 THREAD_IsWin16( THDB *thdb ); extern THDB *THREAD_IdToTHDB( DWORD id ); extern void THREAD_Start( THDB *thdb ); extern THDB *THREAD_GetPtr( HANDLE32 handle, DWORD access, int *server_handle ); extern void THREAD_AddQueue( THREAD_QUEUE *queue, THDB *thread ); extern void THREAD_RemoveQueue( THREAD_QUEUE *queue, THDB *thread ); extern DWORD THREAD_TlsAlloc( THDB *thread ); /* scheduler/event.c */ extern void EVENT_Set( K32OBJ *obj ); extern K32OBJ *EVENT_Create( BOOL32 manual_reset, BOOL32 initial_state ); /* scheduler/mutex.c */ extern void MUTEX_Abandon( K32OBJ *obj ); /* scheduler/synchro.c */ extern void SYNC_WaitForCondition( WAIT_STRUCT *wait, DWORD timeout ); extern void SYNC_WakeUp( THREAD_QUEUE *queue, DWORD max ); extern void SYNC_MsgWakeUp( THDB *thdb ); extern void SYNC_SetupSignals(void); extern DWORD SYNC_DoWait( DWORD count, const HANDLE32 *handles, BOOL32 wait_all, DWORD timeout, BOOL32 alertable, BOOL32 wait_msg ); /* scheduler/sysdeps.c */ extern int SYSDEPS_SpawnThread( THDB *thread ); extern void SYSDEPS_ExitThread(void); extern TEB * WINAPI NtCurrentTeb(void); #endif /* __WINE_THREAD_H */