| 1 | /* $Id: thread.h,v 1.4 1999-07-07 08:11:09 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Thread definitions
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| 5 | *
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| 6 | * Copyright 1996 Alexandre Julliard
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| 7 | */
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| 8 |
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| 9 | #ifndef __WINE_THREAD_H
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| 10 | #define __WINE_THREAD_H
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| 11 |
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| 12 | #include "config.h"
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| 13 | #include "winbase.h"
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| 14 | //#include "selectors.h" /* for SET_FS */
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| 15 |
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| 16 | #ifdef __WIN32OS2__
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| 17 | #define TLS_MINIMUM_AVAILABLE 64
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| 18 | #endif
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| 19 |
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| 20 | struct _PDB;
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| 21 |
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| 22 | /* Thread exception block */
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| 23 | typedef struct _TEB
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| 24 | {
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| 25 | void *except; /* 00 Head of exception handling chain */
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| 26 | void *stack_top; /* 04 Top of thread stack */
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| 27 | void *stack_low; /* 08 Stack low-water mark */
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| 28 | HTASK16 htask16; /* 0c Win16 task handle */
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| 29 | WORD stack_sel; /* 0e 16-bit stack selector */
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| 30 | DWORD selman_list; /* 10 Selector manager list */
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| 31 | DWORD user_ptr; /* 14 User pointer */
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| 32 | struct _TEB *self; /* 18 Pointer to this structure */
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| 33 | WORD flags; /* 1c Flags */
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| 34 | WORD mutex_count; /* 1e Win16 mutex count */
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| 35 | DWORD debug_context; /* 20 Debug context */
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| 36 | DWORD *ppriority; /* 24 Pointer to current priority */
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| 37 | HQUEUE16 queue; /* 28 Message queue */
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| 38 | WORD pad1; /* 2a */
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| 39 | LPVOID *tls_ptr; /* 2c Pointer to TLS array */
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| 40 | struct _PDB *process; /* 30 owning process (used by NT3.51 applets)*/
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| 41 | } TEB;
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| 42 |
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| 43 | /* Thread exception flags */
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| 44 | #define TEBF_WIN32 0x0001
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| 45 | #define TEBF_TRAP 0x0002
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| 46 |
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| 47 | /* Thread database */
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| 48 | typedef struct _THDB
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| 49 | {
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| 50 | LONG header[2]; /* 00 Kernel object header */
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| 51 | struct _PDB *process; /* 08 Process owning this thread */
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| 52 | HANDLE event; /* 0c Thread event */
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| 53 | TEB teb; /* 10 Thread exception block */
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| 54 | DWORD flags; /* 44 Flags */
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| 55 | DWORD exit_code; /* 48 Termination status */
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| 56 | WORD teb_sel; /* 4c Selector to TEB */
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| 57 | WORD emu_sel; /* 4e 80387 emulator selector */
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| 58 | int thread_errno; /* 50 Per-thread errno (was: unknown) */
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| 59 | void *wait_list; /* 54 Event waiting list */
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| 60 | int thread_h_errno; /* 50 Per-thread h_errno (was: unknown) */
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| 61 | void *ring0_thread; /* 5c Pointer to ring 0 thread */
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| 62 | void *ptdbx; /* 60 Pointer to TDBX structure */
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| 63 | void *stack_base; /* 64 Base of the stack */
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| 64 | void *exit_stack; /* 68 Stack pointer on thread exit */
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| 65 | void *emu_data; /* 6c Related to 80387 emulation */
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| 66 | DWORD last_error; /* 70 Last error code */
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| 67 | void *debugger_CB; /* 74 Debugger context block */
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| 68 | DWORD debug_thread; /* 78 Thread debugging this one (?) */
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| 69 | void *pcontext; /* 7c Thread register context */
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| 70 | DWORD cur_stack; /* 80 Current stack (was: unknown) */
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| 71 | DWORD unknown3[2]; /* 84 Unknown */
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| 72 | WORD current_ss; /* 8c Another 16-bit stack selector */
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| 73 | WORD pad2; /* 8e */
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| 74 | void *ss_table; /* 90 Pointer to info about 16-bit stack */
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| 75 | WORD thunk_ss; /* 94 Yet another 16-bit stack selector */
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| 76 | WORD pad3; /* 96 */
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| 77 | #ifdef __WIN32OS2__
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| 78 | LPVOID tls_array[TLS_MINIMUM_AVAILABLE]; /* 98 Thread local storage */
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| 79 | #else
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| 80 | LPVOID tls_array[64]; /* 98 Thread local storage */
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| 81 | #endif
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| 82 | DWORD delta_priority; /* 198 Priority delta */
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| 83 | DWORD unknown4[7]; /* 19c Unknown */
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| 84 | void *create_data; /* 1b8 Pointer to creation structure */
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| 85 | DWORD suspend_count; /* 1bc SuspendThread() counter */
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| 86 | void *entry_point; /* 1c0 Thread entry point (was: unknown) */
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| 87 | void *entry_arg; /* 1c4 Entry point arg (was: unknown) */
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| 88 | DWORD unknown5[4]; /* 1c8 Unknown */
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| 89 | DWORD sys_count[4]; /* 1d8 Syslevel mutex entry counters */
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| 90 | CRITICAL_SECTION *sys_mutex[4];/* 1e8 Syslevel mutex pointers */
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| 91 | DWORD unknown6[2]; /* 1f8 Unknown */
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| 92 | /* The following are Wine-specific fields */
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| 93 | int socket; /* Socket for server communication */
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| 94 | unsigned int seq; /* Server sequence number */
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| 95 | void *server_tid; /* Server id for this thread */
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| 96 | void (*startup)(void); /* Thread startup routine */
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| 97 | struct _THDB *next; /* Global thread list */
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| 98 | #ifdef __WIN32OS2__
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| 99 | DWORD OrgTIBSel; // Original OS/2 TIB selector (always the same, but let's not assume too much for future compatibility)
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| 100 | #endif
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| 101 | } THDB;
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| 102 |
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| 103 | /* The pseudo handle value returned by GetCurrentThread */
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| 104 | #define CURRENT_THREAD_PSEUDOHANDLE 0xfffffffe
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| 105 |
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| 106 | #ifdef __i386__
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| 107 | /* On the i386, the current thread is in the %fs register */
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| 108 | # define SET_CUR_THREAD(thdb) SET_FS((thdb)->teb_sel)
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| 109 | #else
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| 110 | extern THDB *pCurrentThread;
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| 111 | # define SET_CUR_THREAD(thdb) (pCurrentThread = (thdb))
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| 112 | #endif /* __i386__ */
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| 113 |
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| 114 |
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| 115 | /* scheduler/thread.c */
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| 116 | extern THDB *THREAD_CreateInitialThread( struct _PDB *pdb, int server_fd );
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| 117 | extern THDB *THREAD_Create( struct _PDB *pdb, DWORD flags,
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| 118 | DWORD stack_size, BOOL alloc_stack16,
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| 119 | LPSECURITY_ATTRIBUTES sa, int *server_handle );
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| 120 | extern THDB *THREAD_Current(void);
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| 121 | extern BOOL THREAD_IsWin16( THDB *thdb );
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| 122 | extern THDB *THREAD_IdToTHDB( DWORD id );
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| 123 |
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| 124 | /* scheduler/sysdeps.c */
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| 125 | extern int SYSDEPS_SpawnThread( THDB *thread );
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| 126 | extern void SYSDEPS_ExitThread(void);
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| 127 | extern TEB * WINAPI NtCurrentTeb(void);
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| 128 |
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| 129 | #endif /* __WINE_THREAD_H */
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