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