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/*
* Thread definitions
*
* Copyright 1996 Alexandre Julliard
*/
#ifndef __WINE_THREAD_H
#define __WINE_THREAD_H
#include "k32obj.h"
#include "windows.h"
#include "winnt.h"
#include "selectors.h" /* for SET_FS */
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 */
K32OBJ *objs[MAXIMUM_WAIT_OBJECTS]; /* Object pointers */
} 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) */
DWORD unknown5[6]; /* 1cc Unknown */
K32OBJ *crit_section; /* 1e4 Some critical section */
K32OBJ *win16_mutex; /* 1e8 Pointer to Win16 mutex */
K32OBJ *win32_mutex; /* 1ec Pointer to KERNEL32 mutex */
K32OBJ *crit_section2; /* 1f0 Another critical section */
K32OBJ *mutex_list; /* 1f4 List of owned mutex (was: unknown)*/
DWORD unknown6[2]; /* 1f8 Unknown */
/* The following are Wine-specific fields */
CONTEXT context; /* 200 Thread context */
WAIT_STRUCT wait_struct; /* Event wait structure */
} 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)
#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,
LPTHREAD_START_ROUTINE start_addr, LPVOID param );
extern THDB *THREAD_Current(void);
extern THDB *THREAD_GetPtr( HANDLE32 handle, DWORD access );
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 );
/* scheduler/sysdeps.c */
extern int SYSDEPS_SpawnThread( THDB *thread );
extern void SYSDEPS_ExitThread(void);
extern TEB * WINAPI NtCurrentTeb(void);
#endif /* __WINE_THREAD_H */
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