4 * Copyright (C) 1998 Alexandre Julliard
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.
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.
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
21 #ifndef __WINE_SERVER_THREAD_H
22 #define __WINE_SERVER_THREAD_H
26 /* thread structure */
40 RUNNING
, /* running normally */
41 TERMINATED
/* terminated */
46 struct thread_apc
*head
;
47 struct thread_apc
*tail
;
50 /* descriptor for fds currently in flight from client to server */
53 int client
; /* fd on the client side (or -1 if entry is free) */
54 int server
; /* fd on the server side */
56 #define MAX_INFLIGHT_FDS 16 /* max number of fds in flight per thread */
60 struct object obj
; /* object header */
61 struct thread
*next
; /* system-wide thread list */
63 struct thread
*proc_next
; /* per-process thread list */
64 struct thread
*proc_prev
;
65 struct process
*process
;
66 thread_id_t id
; /* thread id */
67 struct mutex
*mutex
; /* list of currently owned mutexes */
68 struct debug_ctx
*debug_ctx
; /* debugger context if this thread is a debugger */
69 struct debug_event
*debug_event
; /* debug event being sent to debugger */
70 struct msg_queue
*queue
; /* message queue */
71 struct hook_table
*hooks
; /* hooks table */
72 struct startup_info
*info
; /* startup info for child process */
73 struct thread_wait
*wait
; /* current wait condition if sleeping */
74 struct apc_queue system_apc
; /* queue of system async procedure calls */
75 struct apc_queue user_apc
; /* queue of user async procedure calls */
76 struct inflight_fd inflight
[MAX_INFLIGHT_FDS
]; /* fds currently in flight */
77 unsigned int error
; /* current error code */
78 union generic_request req
; /* current request */
79 void *req_data
; /* variable-size data for request */
80 unsigned int req_toread
; /* amount of data still to read in request */
81 void *reply_data
; /* variable-size data for reply */
82 unsigned int reply_size
; /* size of reply data */
83 unsigned int reply_towrite
; /* amount of data still to write in reply */
84 int request_fd
; /* fd for receiving client requests */
85 int reply_fd
; /* fd to send a reply to a client */
86 int wait_fd
; /* fd to use to wake a sleeping client */
87 enum run_state state
; /* running state */
88 int attached
; /* is thread attached with ptrace? */
89 int exit_code
; /* thread exit code */
90 int unix_pid
; /* Unix pid of client */
91 CONTEXT
*context
; /* current context if in an exception handler */
92 void *teb
; /* TEB address (in client address space) */
93 int priority
; /* priority level */
94 int affinity
; /* affinity mask */
95 int suspend
; /* suspend count */
96 time_t creation_time
; /* Thread creation time */
97 time_t exit_time
; /* Thread exit time */
100 struct thread_snapshot
102 struct thread
*thread
; /* thread ptr */
103 int count
; /* thread refcount */
104 int priority
; /* priority class */
107 extern struct thread
*current
;
109 /* thread functions */
111 extern struct thread
*create_thread( int fd
, struct process
*process
);
112 extern struct thread
*get_thread_from_id( thread_id_t id
);
113 extern struct thread
*get_thread_from_handle( obj_handle_t handle
, unsigned int access
);
114 extern struct thread
*get_thread_from_pid( int pid
);
115 extern int suspend_thread( struct thread
*thread
, int check_limit
);
116 extern int resume_thread( struct thread
*thread
);
117 extern int add_queue( struct object
*obj
, struct wait_queue_entry
*entry
);
118 extern void remove_queue( struct object
*obj
, struct wait_queue_entry
*entry
);
119 extern void kill_thread( struct thread
*thread
, int violent_death
);
120 extern void wake_up( struct object
*obj
, int max
);
121 extern int thread_queue_apc( struct thread
*thread
, struct object
*owner
, void *func
,
122 enum apc_type type
, int system
, int nb_args
, ... );
123 extern void thread_cancel_apc( struct thread
*thread
, struct object
*owner
, int system
);
124 extern int thread_add_inflight_fd( struct thread
*thread
, int client
, int server
);
125 extern int thread_get_inflight_fd( struct thread
*thread
, int client
);
126 extern struct thread_snapshot
*thread_snap( int *count
);
128 /* ptrace functions */
130 extern void sigchld_handler();
131 extern void wait4_thread( struct thread
*thread
, int signal
);
132 extern void stop_thread( struct thread
*thread
);
133 extern void continue_thread( struct thread
*thread
);
134 extern void detach_thread( struct thread
*thread
, int sig
);
135 extern int suspend_for_ptrace( struct thread
*thread
);
136 extern int read_thread_int( struct thread
*thread
, const int *addr
, int *data
);
137 extern int write_thread_int( struct thread
*thread
, int *addr
, int data
, unsigned int mask
);
138 extern void *get_thread_ip( struct thread
*thread
);
139 extern int get_thread_single_step( struct thread
*thread
);
141 extern unsigned int global_error
; /* global error code for when no thread is current */
143 static inline unsigned int get_error(void) { return current
? current
->error
: global_error
; }
144 static inline void set_error( unsigned int err
) { global_error
= err
; if (current
) current
->error
= err
; }
145 static inline void clear_error(void) { set_error(0); }
147 static inline thread_id_t
get_thread_id( struct thread
*thread
) { return thread
->id
; }
149 #endif /* __WINE_SERVER_THREAD_H */