Sweden-Number/include/thread.h

169 lines
6.8 KiB
C

/*
* 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;
/* Thread exception flags */
#define TEBF_WIN32 0x0001
#define TEBF_TRAP 0x0002
/* 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 */
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 */
HANDLE32 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) */
DWORD unknown5[3]; /* 1cc 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/sysdeps.c */
extern int SYSDEPS_SpawnThread( THDB *thread );
extern void SYSDEPS_ExitThread(void);
extern TEB * WINAPI NtCurrentTeb(void);
#endif /* __WINE_THREAD_H */