4 * Copyright (C) 1998 Alexandre Julliard
7 #ifndef __WINE_SERVER_THREAD_H
8 #define __WINE_SERVER_THREAD_H
10 #ifndef __WINE_SERVER__
11 #error This file can only be used in the Wine server
16 /* thread structure */
29 RUNNING, /* running normally */
30 TERMINATED /* terminated */
36 struct object obj; /* object header */
37 struct thread *next; /* system-wide thread list */
39 struct thread *proc_next; /* per-process thread list */
40 struct thread *proc_prev;
41 struct process *process;
42 struct mutex *mutex; /* list of currently owned mutexes */
43 struct debug_ctx *debug_ctx; /* debugger context if this thread is a debugger */
44 struct debug_event *debug_event; /* debug event being sent to debugger */
45 struct msg_queue *queue; /* message queue */
46 struct startup_info*info; /* startup info for child process */
47 struct thread_wait *wait; /* current wait condition if sleeping */
48 struct thread_apc *apc_head; /* queue of async procedure calls */
49 struct thread_apc *apc_tail; /* queue of async procedure calls */
50 int error; /* current error code */
51 int pass_fd; /* fd to pass to the client */
52 enum run_state state; /* running state */
53 int attached; /* is thread attached with ptrace? */
54 int exit_code; /* thread exit code */
55 int unix_pid; /* Unix pid of client */
56 CONTEXT *context; /* current context if in an exception handler */
57 void *teb; /* TEB address (in client address space) */
58 int priority; /* priority level */
59 int affinity; /* affinity mask */
60 int suspend; /* suspend count */
61 void *buffer; /* buffer for communication with the client */
62 struct server_buffer_info *buffer_info; /* buffer information structure */
63 enum request last_req; /* last request received (for debugging) */
66 struct thread_snapshot
68 struct thread *thread; /* thread ptr */
69 int count; /* thread refcount */
70 int priority; /* priority class */
73 /* callback function for building the thread reply when sleep_on is finished */
74 typedef void (*sleep_reply)( struct thread *thread, struct object *obj, int signaled );
76 extern struct thread *current;
78 /* thread functions */
80 extern struct thread *create_thread( int fd, struct process *process );
81 extern struct thread *get_thread_from_id( void *id );
82 extern struct thread *get_thread_from_handle( int handle, unsigned int access );
83 extern struct thread *get_thread_from_pid( int pid );
84 extern int suspend_thread( struct thread *thread, int check_limit );
85 extern int resume_thread( struct thread *thread );
86 extern void suspend_all_threads( void );
87 extern void resume_all_threads( void );
88 extern int add_queue( struct object *obj, struct wait_queue_entry *entry );
89 extern void remove_queue( struct object *obj, struct wait_queue_entry *entry );
90 extern void kill_thread( struct thread *thread, int violent_death );
91 extern void wake_up( struct object *obj, int max );
92 extern int sleep_on( int count, struct object *objects[], int flags,
93 int timeout, sleep_reply func );
94 extern int thread_queue_apc( struct thread *thread, struct object *owner, void *func,
95 enum apc_type type, int nb_args, ... );
96 extern void thread_cancel_apc( struct thread *thread, struct object *owner );
97 extern struct thread_snapshot *thread_snap( int *count );
99 /* ptrace functions */
101 extern void sigchld_handler();
102 extern void wait4_thread( struct thread *thread, int signal );
103 extern void stop_thread( struct thread *thread );
104 extern void continue_thread( struct thread *thread );
105 extern void detach_thread( struct thread *thread, int sig );
106 extern int suspend_for_ptrace( struct thread *thread );
107 extern int read_thread_int( struct thread *thread, const int *addr, int *data );
108 extern int write_thread_int( struct thread *thread, int *addr, int data, unsigned int mask );
109 extern void *get_thread_ip( struct thread *thread );
111 extern int global_error; /* global error code for when no thread is current */
113 static inline int get_error(void) { return current ? current->error : global_error; }
114 static inline void set_error( int err ) { global_error = err; if (current) current->error = err; }
115 static inline void clear_error(void) { set_error(0); }
117 static inline void *get_thread_id( struct thread *thread ) { return thread; }
119 #endif /* __WINE_SERVER_THREAD_H */