include/thread.h

   1 /*
   2  * Thread definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  */
  20
  21 #ifndef __WINE_THREAD_H
  22 #define __WINE_THREAD_H
  23
  24 #include <stdarg.h>
  25 #include <windef.h>
  26 #include <winbase.h>
  27 #include <winreg.h>
  28 #define WINE_NO_TEB
  29 #include <winternl.h>
  30 #include <wine/windef16.h>
  31
  32 struct _SECURITY_ATTRIBUTES;
  33 struct tagSYSLEVEL;
  34 struct server_buffer_info;
  35 struct fiber_data;
  36
  37 struct debug_info
  38 {
  39     char *str_pos;       /* current position in strings buffer */
  40     char *out_pos;       /* current position in output buffer */
  41     char  strings[1024]; /* buffer for temporary strings */
  42     char  output[1024];  /* current output line */
  43 };
  44
  45 /* Thread exception block
  46
  47   flags in the comment:
  48   1-- win95 field
  49   d-- win95 debug version
  50   -2- nt field
  51   --3 wine special
  52   --n wine unused
  53   !-- or -!- likely or observed  collision
  54   more problems (collected from mailing list):
  55   psapi.dll 0x10/0x30 (expects nt fields)
  56   ie4       0x40
  57   PESHiELD  0x23/0x30 (win95)
  58 */
  59 #ifndef WINE_TEB_DEFINED
  60 #define WINE_TEB_DEFINED
  61 typedef struct _TEB
  62 {
  63     NT_TIB       Tib;            /* 12-  00 Thread information block */
  64     WORD         tibflags;       /* 1!n  1c Flags (NT: EnvironmentPointer) */
  65     WORD         mutex_count;    /* 1-n  1e Win16 mutex count */
  66     CLIENT_ID    ClientId;       /* -2-  20 Process and thread id (win95: debug context) */
  67     HQUEUE16     queue;          /* 1!-  28 Message queue (NT: DWORD ActiveRpcHandle)*/
  68     WORD         pad1;           /* --n  2a */
  69     PVOID        ThreadLocalStoragePointer; /* 1--  2c Pointer to TLS array */
  70     PEB         *Peb;            /* 12-  30 owning process PEB */
  71     DWORD        flags;          /* 1-n  34 */
  72     DWORD        exit_code;      /* 1--  38 Termination status */
  73     WORD         teb_sel;        /* 1--  3c Selector to TEB */
  74     WORD         emu_sel;        /* 1-n  3e 80387 emulator selector */
  75     DWORD        unknown1;       /* --n  40 */
  76     DWORD        unknown2;       /* --n  44 */
  77     DWORD        unknown3;       /* --n  48 */
  78     int          thread_errno;   /* --3  4c Per-thread errno (was: ring0_thread) */
  79     int          thread_h_errno; /* --3  50 Per-thread h_errno (was: ptr to tdbx structure) */
  80     void        *signal_stack;   /* --3  54 Signal stack (was: stack_base) */
  81     void        *exit_stack;     /* 1-n  58 Exit stack */
  82     void        *emu_data;       /* --n  5c Related to 80387 emulation */
  83     DWORD        last_error;     /* 1--  60 Last error code */
  84     HANDLE       debug_cb;       /* 1-n  64 Debugger context block */
  85     DWORD        debug_thread;   /* 1-n  68 Thread debugging this one (?) */
  86     void        *pcontext;       /* 1-n  6c Thread register context */
  87     DWORD        cur_stack;      /* --3  70 Current stack (was: unknown) */
  88     DWORD        ThunkConnect;   /* 1-n  74 */
  89     DWORD        NegStackBase;   /* 1-n  78 */
  90     WORD         current_ss;     /* 1-n  7c Another 16-bit stack selector */
  91     WORD         pad2;           /* --n  7e */
  92     void        *ss_table;       /* --n  80 Pointer to info about 16-bit stack */
  93     WORD         stack_sel;      /* --3  84 16-bit stack selector */
  94     HTASK16      htask16;        /* --3  86 Win16 task handle */
  95     DWORD        pad4[15];       /* --n  88 */
  96     ULONG        CurrentLocale;  /* -2-  C4 */
  97     DWORD        pad5[48];       /* --n  C8 */
  98     DWORD        delta_priority; /* 1-n 188 Priority delta */
  99     DWORD        unknown4[7];    /* d-n 18c Unknown */
 100     void        *create_data;    /* d-n 1a8 Pointer to creation structure */
 101     DWORD        suspend_count;  /* d-n 1ac SuspendThread() counter */
 102     void        *entry_point;    /* --3 1b0 Thread entry point (was: unknown) */
 103     void        *entry_arg;      /* --3 1b4 Entry point arg (was: unknown) */
 104     DWORD        unknown5[4];    /* --n 1b8 Unknown */
 105     DWORD        sys_count[4];   /* --3 1c8 Syslevel mutex entry counters */
 106     struct tagSYSLEVEL *sys_mutex[4];   /* --3 1d8 Syslevel mutex pointers */
 107     DWORD        unknown6[5];    /* --n 1e8 Unknown */
 108
 109     /* The following are Wine-specific fields (NT: GDI stuff) */
 110     UINT         code_page;      /* --3 1fc Thread code page */
 111     DWORD        unused[2];      /* --3 200 Was server buffer */
 112     DWORD        gs_sel;         /* --3 208 %gs selector for this thread */
 113     int          request_fd;     /* --3 20c fd for sending server requests */
 114     int          reply_fd;       /* --3 210 fd for receiving server replies */
 115     int          wait_fd[2];     /* --3 214 fd for sleeping server requests */
 116     struct debug_info *debug_info;        /* --3 21c Info for debugstr functions */
 117     void        *pthread_data;   /* --3 220 Data for pthread emulation */
 118     struct async_private *pending_list;   /* --3 224 list of pending async operations */
 119     void        *driver_data;    /* --3 228 Graphics driver private data */
 120     DWORD        dpmi_vif;       /* --3 22c Protected mode virtual interrupt flag */
 121     DWORD        vm86_pending;   /* --3 230 Data for vm86 mode */
 122     void        *vm86_ptr;       /* --3 234 Data for vm86 mode */
 123     /* here is plenty space for wine specific fields (don't forget to change pad6!!) */
 124
 125     /* the following are nt specific fields */
 126     DWORD        pad6[624];                  /* --n 238 */
 127     UNICODE_STRING StaticUnicodeString;      /* -2- bf8 used by advapi32 */
 128     USHORT       StaticUnicodeBuffer[261];   /* -2- c00 used by advapi32 */
 129     PVOID        DeallocationStack;          /* -2- e0c Base of the stack */
 130     LPVOID       TlsSlots[64];               /* -2- e10 Thread local storage */
 131     LIST_ENTRY   TlsLinks;                   /* -2- f10 */
 132     DWORD        pad8[1];                    /* --n f18 */
 133     PVOID        ReservedForNtRpc;           /* -2- f1c used by rpcrt4 */
 134     DWORD        pad9[24];                   /* --n f20 */
 135     PVOID        ReservedForOle;             /* -2- f80 used by ole32 (IErrorInfo*) */
 136 } TEB;
 137 #endif /* WINE_TEB_DEFINED */
 138
 139 /* Thread exception flags */
 140 #define TEBF_WIN32  0x0001
 141 #define TEBF_TRAP   0x0002
 142
 143 /* The per-thread signal stack size */
 144 #define SIGNAL_STACK_SIZE  0x100000  /* 1Mb  FIXME: should be much smaller than that */
 145
 146
 147 /* scheduler/thread.c */
 148 extern void THREAD_Init(void);
 149 extern TEB *THREAD_InitStack( TEB *teb, DWORD stack_size );
 150
 151 /* scheduler/sysdeps.c */
 152 extern int SYSDEPS_SpawnThread( void (*func)(TEB *), TEB *teb );
 153 extern void SYSDEPS_SetCurThread( TEB *teb );
 154 extern int SYSDEPS_GetUnixTid(void);
 155 extern void DECLSPEC_NORETURN SYSDEPS_ExitThread( int status );
 156 extern void DECLSPEC_NORETURN SYSDEPS_AbortThread( int status );
 157
 158 /* signal handling */
 159 extern BOOL SIGNAL_Init(void);
 160 extern void SIGNAL_Block(void);
 161 extern void SIGNAL_Unblock(void);
 162 extern void SIGNAL_Reset(void);
 163
 164 #endif  /* __WINE_THREAD_H */