148 lines
7.2 KiB
C
148 lines
7.2 KiB
C
/*
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* Wine server threads
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*
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* Copyright (C) 1998 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_SERVER_THREAD_H
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#define __WINE_SERVER_THREAD_H
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#include "object.h"
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/* thread structure */
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struct process;
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struct thread_wait;
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struct thread_apc;
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struct debug_ctx;
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struct debug_event;
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struct msg_queue;
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enum run_state
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{
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RUNNING, /* running normally */
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TERMINATED /* terminated */
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};
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/* descriptor for fds currently in flight from client to server */
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struct inflight_fd
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{
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int client; /* fd on the client side (or -1 if entry is free) */
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int server; /* fd on the server side */
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};
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#define MAX_INFLIGHT_FDS 16 /* max number of fds in flight per thread */
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struct thread
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{
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struct object obj; /* object header */
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struct list entry; /* entry in system-wide thread list */
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struct list proc_entry; /* entry in per-process thread list */
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struct process *process;
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thread_id_t id; /* thread id */
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struct list mutex_list; /* list of currently owned mutexes */
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struct debug_ctx *debug_ctx; /* debugger context if this thread is a debugger */
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struct debug_event *debug_event; /* debug event being sent to debugger */
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int debug_break; /* debug breakpoint pending? */
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struct msg_queue *queue; /* message queue */
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struct thread_wait *wait; /* current wait condition if sleeping */
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struct list system_apc; /* queue of system async procedure calls */
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struct list user_apc; /* queue of user async procedure calls */
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struct inflight_fd inflight[MAX_INFLIGHT_FDS]; /* fds currently in flight */
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unsigned int error; /* current error code */
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union generic_request req; /* current request */
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void *req_data; /* variable-size data for request */
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unsigned int req_toread; /* amount of data still to read in request */
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void *reply_data; /* variable-size data for reply */
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unsigned int reply_size; /* size of reply data */
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unsigned int reply_towrite; /* amount of data still to write in reply */
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struct fd *request_fd; /* fd for receiving client requests */
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struct fd *reply_fd; /* fd to send a reply to a client */
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struct fd *wait_fd; /* fd to use to wake a sleeping client */
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enum run_state state; /* running state */
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int exit_code; /* thread exit code */
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int unix_pid; /* Unix pid of client */
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int unix_tid; /* Unix tid of client */
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context_t *context; /* current context if in an exception handler */
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context_t *suspend_context; /* current context if suspended */
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client_ptr_t teb; /* TEB address (in client address space) */
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affinity_t affinity; /* affinity mask */
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int priority; /* priority level */
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int suspend; /* suspend count */
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obj_handle_t desktop; /* desktop handle */
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int desktop_users; /* number of objects using the thread desktop */
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timeout_t creation_time; /* Thread creation time */
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timeout_t exit_time; /* Thread exit time */
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struct token *token; /* security token associated with this thread */
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};
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struct thread_snapshot
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{
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struct thread *thread; /* thread ptr */
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int count; /* thread refcount */
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int priority; /* priority class */
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};
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extern struct thread *current;
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/* thread functions */
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extern struct thread *create_thread( int fd, struct process *process );
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extern struct thread *get_thread_from_id( thread_id_t id );
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extern struct thread *get_thread_from_handle( obj_handle_t handle, unsigned int access );
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extern struct thread *get_thread_from_tid( int tid );
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extern struct thread *get_thread_from_pid( int pid );
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extern struct thread *get_wait_queue_thread( struct wait_queue_entry *entry );
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extern enum select_op get_wait_queue_select_op( struct wait_queue_entry *entry );
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extern client_ptr_t get_wait_queue_key( struct wait_queue_entry *entry );
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extern void make_wait_abandoned( struct wait_queue_entry *entry );
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extern void stop_thread( struct thread *thread );
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extern void stop_thread_if_suspended( struct thread *thread );
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extern int wake_thread( struct thread *thread );
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extern int wake_thread_queue_entry( struct wait_queue_entry *entry );
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extern int add_queue( struct object *obj, struct wait_queue_entry *entry );
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extern void remove_queue( struct object *obj, struct wait_queue_entry *entry );
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extern void kill_thread( struct thread *thread, int violent_death );
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extern void break_thread( struct thread *thread );
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extern void wake_up( struct object *obj, int max );
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extern int thread_queue_apc( struct thread *thread, struct object *owner, const apc_call_t *call_data );
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extern void thread_cancel_apc( struct thread *thread, struct object *owner, enum apc_type type );
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extern int thread_add_inflight_fd( struct thread *thread, int client, int server );
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extern int thread_get_inflight_fd( struct thread *thread, int client );
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extern struct thread_snapshot *thread_snap( int *count );
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extern struct token *thread_get_impersonation_token( struct thread *thread );
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extern int set_thread_affinity( struct thread *thread, affinity_t affinity );
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/* ptrace functions */
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extern void sigchld_callback(void);
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extern void get_thread_context( struct thread *thread, context_t *context, unsigned int flags );
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extern void set_thread_context( struct thread *thread, const context_t *context, unsigned int flags );
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extern int send_thread_signal( struct thread *thread, int sig );
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extern void get_selector_entry( struct thread *thread, int entry, unsigned int *base,
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unsigned int *limit, unsigned char *flags );
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extern unsigned int global_error; /* global error code for when no thread is current */
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static inline unsigned int get_error(void) { return current ? current->error : global_error; }
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static inline void set_error( unsigned int err ) { global_error = err; if (current) current->error = err; }
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static inline void clear_error(void) { set_error(0); }
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static inline void set_win32_error( unsigned int err ) { set_error( 0xc0010000 | err ); }
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static inline thread_id_t get_thread_id( struct thread *thread ) { return thread->id; }
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#endif /* __WINE_SERVER_THREAD_H */
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