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 */
38 RUNNING, /* running normally */
39 TERMINATED /* terminated */
44 struct thread_apc *head;
45 struct thread_apc *tail;
48 /* descriptor for fds currently in flight from client to server */
51 int client; /* fd on the client side (or -1 if entry is free) */
52 int server; /* fd on the server side */
54 #define MAX_INFLIGHT_FDS 16 /* max number of fds in flight per thread */
58 struct object obj; /* object header */
59 struct thread *next; /* system-wide thread list */
61 struct thread *proc_next; /* per-process thread list */
62 struct thread *proc_prev;
63 struct process *process;
64 thread_id_t id; /* thread id */
65 struct mutex *mutex; /* list of currently owned mutexes */
66 struct debug_ctx *debug_ctx; /* debugger context if this thread is a debugger */
67 struct debug_event *debug_event; /* debug event being sent to debugger */
68 struct msg_queue *queue; /* message queue */
69 struct thread_wait *wait; /* current wait condition if sleeping */
70 struct apc_queue system_apc; /* queue of system async procedure calls */
71 struct apc_queue user_apc; /* queue of user async procedure calls */
72 struct inflight_fd inflight[MAX_INFLIGHT_FDS]; /* fds currently in flight */
73 unsigned int error; /* current error code */
74 union generic_request req; /* current request */
75 void *req_data; /* variable-size data for request */
76 unsigned int req_toread; /* amount of data still to read in request */
77 void *reply_data; /* variable-size data for reply */
78 unsigned int reply_size; /* size of reply data */
79 unsigned int reply_towrite; /* amount of data still to write in reply */
80 struct fd *request_fd; /* fd for receiving client requests */
81 struct fd *reply_fd; /* fd to send a reply to a client */
82 struct fd *wait_fd; /* fd to use to wake a sleeping client */
83 enum run_state state; /* running state */
84 int attached; /* is thread attached with ptrace? */
85 int exit_code; /* thread exit code */
86 int unix_pid; /* Unix pid of client */
87 int unix_tid; /* Unix tid of client */
88 CONTEXT *context; /* current context if in an exception handler */
89 void *teb; /* TEB address (in client address space) */
90 int priority; /* priority level */
91 int affinity; /* affinity mask */
92 int suspend; /* suspend count */
93 time_t creation_time; /* Thread creation time */
94 time_t exit_time; /* Thread exit time */
95 struct token *token; /* security token associated with this thread */
98 struct thread_snapshot
100 struct thread *thread; /* thread ptr */
101 int count; /* thread refcount */
102 int priority; /* priority class */
105 extern struct thread *current;
107 /* thread functions */
109 extern struct thread *create_thread( int fd, struct process *process );
110 extern struct thread *get_thread_from_id( thread_id_t id );
111 extern struct thread *get_thread_from_handle( obj_handle_t handle, unsigned int access );
112 extern struct thread *get_thread_from_pid( int pid );
113 extern void stop_thread( struct thread *thread );
114 extern int wake_thread( struct thread *thread );
115 extern int add_queue( struct object *obj, struct wait_queue_entry *entry );
116 extern void remove_queue( struct object *obj, struct wait_queue_entry *entry );
117 extern void kill_thread( struct thread *thread, int violent_death );
118 extern void wake_up( struct object *obj, int max );
119 extern int thread_queue_apc( struct thread *thread, struct object *owner, void *func,
120 enum apc_type type, int system, void *arg1, void *arg2, void *arg3 );
121 extern void thread_cancel_apc( struct thread *thread, struct object *owner, int system );
122 extern int thread_add_inflight_fd( struct thread *thread, int client, int server );
123 extern int thread_get_inflight_fd( struct thread *thread, int client );
124 extern struct thread_snapshot *thread_snap( int *count );
126 /* ptrace functions */
128 extern void sigchld_callback(void);
129 extern int get_ptrace_pid( struct thread *thread );
130 extern void detach_thread( struct thread *thread, int sig );
131 extern int attach_process( struct process *process );
132 extern void detach_process( struct process *process );
133 extern int suspend_for_ptrace( struct thread *thread );
134 extern void resume_after_ptrace( struct thread *thread );
135 extern int read_thread_int( struct thread *thread, const int *addr, int *data );
136 extern int write_thread_int( struct thread *thread, int *addr, int data, unsigned int mask );
137 extern void *get_thread_ip( struct thread *thread );
138 extern int get_thread_single_step( struct thread *thread );
139 extern int tkill( int pid, int sig );
140 extern int send_thread_signal( struct thread *thread, int sig );
142 extern unsigned int global_error; /* global error code for when no thread is current */
144 static inline unsigned int get_error(void) { return current ? current->error : global_error; }
145 static inline void set_error( unsigned int err ) { global_error = err; if (current) current->error = err; }
146 static inline void clear_error(void) { set_error(0); }
148 static inline thread_id_t get_thread_id( struct thread *thread ) { return thread->id; }
150 #endif /* __WINE_SERVER_THREAD_H */