169 lines
6.8 KiB
C
169 lines
6.8 KiB
C
/*
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* Thread definitions
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*
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* Copyright 1996 Alexandre Julliard
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*/
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#ifndef __WINE_THREAD_H
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#define __WINE_THREAD_H
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#include "config.h"
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#include "k32obj.h"
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#include "windows.h"
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#include "winbase.h"
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#include "winnt.h"
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#include "selectors.h" /* for SET_FS */
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#ifdef linux
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#define HAVE_CLONE_SYSCALL
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#endif
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/* This is what we will use on *BSD, once threads using rfork() get
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* implemented:
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*
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* #if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
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* #define HAVE_RFORK
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* #endif
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*/
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#if (defined(HAVE_CLONE_SYSCALL) || defined(HAVE_RFORK)) && !defined(NO_REENTRANT_LIBC)
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#define USE_THREADS
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#endif
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struct _PDB32;
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/* Thread exception block */
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typedef struct _TEB
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{
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void *except; /* 00 Head of exception handling chain */
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void *stack_top; /* 04 Top of thread stack */
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void *stack_low; /* 08 Stack low-water mark */
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HTASK16 htask16; /* 0c Win16 task handle */
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WORD stack_sel; /* 0e 16-bit stack selector */
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DWORD selman_list; /* 10 Selector manager list */
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DWORD user_ptr; /* 14 User pointer */
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struct _TEB *self; /* 18 Pointer to this structure */
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WORD flags; /* 1c Flags */
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WORD mutex_count; /* 1e Win16 mutex count */
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DWORD debug_context; /* 20 Debug context */
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DWORD *ppriority; /* 24 Pointer to current priority */
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HQUEUE16 queue; /* 28 Message queue */
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WORD pad1; /* 2a */
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LPVOID *tls_ptr; /* 2c Pointer to TLS array */
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struct _PDB32 *process; /* 30 owning process (used by NT3.51 applets)*/
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} TEB;
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/* Thread exception flags */
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#define TEBF_WIN32 0x0001
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#define TEBF_TRAP 0x0002
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/* Event waiting structure */
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typedef struct
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{
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DWORD count; /* Count of valid objects */
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DWORD signaled; /* Index of signaled object (or WAIT_FAILED)*/
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BOOL32 wait_all; /* Wait for all objects flag */
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K32OBJ *objs[MAXIMUM_WAIT_OBJECTS]; /* Object pointers */
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int server[MAXIMUM_WAIT_OBJECTS]; /* Server handles */
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} WAIT_STRUCT;
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/* Thread database */
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typedef struct _THDB
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{
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K32OBJ header; /* 00 Kernel object header */
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struct _PDB32 *process; /* 08 Process owning this thread */
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HANDLE32 event; /* 0c Thread event */
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TEB teb; /* 10 Thread exception block */
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DWORD flags; /* 44 Flags */
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DWORD exit_code; /* 48 Termination status */
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WORD teb_sel; /* 4c Selector to TEB */
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WORD emu_sel; /* 4e 80387 emulator selector */
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int thread_errno; /* 50 Per-thread errno (was: unknown) */
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WAIT_STRUCT *wait_list; /* 54 Event waiting list */
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int thread_h_errno; /* 50 Per-thread h_errno (was: unknown) */
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void *ring0_thread; /* 5c Pointer to ring 0 thread */
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void *ptdbx; /* 60 Pointer to TDBX structure */
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void *stack_base; /* 64 Base of the stack */
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void *exit_stack; /* 68 Stack pointer on thread exit */
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void *emu_data; /* 6c Related to 80387 emulation */
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DWORD last_error; /* 70 Last error code */
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void *debugger_CB; /* 74 Debugger context block */
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DWORD debug_thread; /* 78 Thread debugging this one (?) */
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void *pcontext; /* 7c Thread register context */
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DWORD cur_stack; /* 80 Current stack (was: unknown) */
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DWORD unknown3[2]; /* 84 Unknown */
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WORD current_ss; /* 8c Another 16-bit stack selector */
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WORD pad2; /* 8e */
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void *ss_table; /* 90 Pointer to info about 16-bit stack */
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WORD thunk_ss; /* 94 Yet another 16-bit stack selector */
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WORD pad3; /* 96 */
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LPVOID tls_array[64]; /* 98 Thread local storage */
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DWORD delta_priority; /* 198 Priority delta */
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DWORD unknown4[7]; /* 19c Unknown */
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void *create_data; /* 1b8 Pointer to creation structure */
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DWORD suspend_count; /* 1bc SuspendThread() counter */
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void *entry_point; /* 1c0 Thread entry point (was: unknown) */
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void *entry_arg; /* 1c4 Entry point arg (was: unknown) */
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int unix_pid; /* 1c8 Unix thread pid (was: unknown) */
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DWORD unknown5[3]; /* 1cc Unknown */
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DWORD sys_count[4]; /* 1d8 Syslevel mutex entry counters */
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CRITICAL_SECTION *sys_mutex[4];/* 1e8 Syslevel mutex pointers */
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DWORD unknown6[2]; /* 1f8 Unknown */
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/* The following are Wine-specific fields */
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CONTEXT context; /* 200 Thread context */
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WAIT_STRUCT wait_struct; /* Event wait structure */
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int socket; /* Socket for server communication */
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unsigned int seq; /* Server sequence number */
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void *server_tid; /* Server id for this thread */
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} THDB;
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/* Thread queue entry */
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typedef struct _THREAD_ENTRY
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{
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THDB *thread;
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struct _THREAD_ENTRY *next;
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} THREAD_ENTRY;
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/* A thread queue is a circular list; a THREAD_QUEUE is a pointer */
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/* to the end of the queue (i.e. where we add elements) */
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typedef THREAD_ENTRY *THREAD_QUEUE;
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/* THDB <-> Thread id conversion macros */
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#define THREAD_OBFUSCATOR ((DWORD)0xdeadbeef)
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#define THREAD_ID_TO_THDB(id) ((THDB *)((id) ^ THREAD_OBFUSCATOR))
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#define THDB_TO_THREAD_ID(thdb) ((DWORD)(thdb) ^ THREAD_OBFUSCATOR)
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/* The pseudo handle value returned by GetCurrentThread */
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#define CURRENT_THREAD_PSEUDOHANDLE 0xfffffffe
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#ifdef __i386__
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/* On the i386, the current thread is in the %fs register */
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# define SET_CUR_THREAD(thdb) SET_FS((thdb)->teb_sel)
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#else
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extern THDB *pCurrentThread;
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# define SET_CUR_THREAD(thdb) (pCurrentThread = (thdb))
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#endif /* __i386__ */
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/* scheduler/thread.c */
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extern THDB *THREAD_Create( struct _PDB32 *pdb, DWORD stack_size,
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BOOL32 alloc_stack16,
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int *server_thandle, int *server_phandle,
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LPTHREAD_START_ROUTINE start_addr, LPVOID param );
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extern THDB *THREAD_Current(void);
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extern BOOL32 THREAD_IsWin16( THDB *thdb );
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extern THDB *THREAD_IdToTHDB( DWORD id );
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extern void THREAD_Start( THDB *thdb );
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extern THDB *THREAD_GetPtr( HANDLE32 handle, DWORD access, int *server_handle );
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extern void THREAD_AddQueue( THREAD_QUEUE *queue, THDB *thread );
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extern void THREAD_RemoveQueue( THREAD_QUEUE *queue, THDB *thread );
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extern DWORD THREAD_TlsAlloc( THDB *thread );
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/* scheduler/sysdeps.c */
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extern int SYSDEPS_SpawnThread( THDB *thread );
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extern void SYSDEPS_ExitThread(void);
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extern TEB * WINAPI NtCurrentTeb(void);
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#endif /* __WINE_THREAD_H */
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