d549f6909e
file descriptor. Associate file descriptors with handles on the server side so that we don't need to pass the fd every time the client wants to use it.
122 lines
5.0 KiB
C
122 lines
5.0 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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#ifndef __WINE_SERVER_THREAD_H
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#define __WINE_SERVER_THREAD_H
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#ifndef __WINE_SERVER__
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#error This file can only be used in the Wine server
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#endif
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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 mutex;
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struct debug_ctx;
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struct debug_event;
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struct startup_info;
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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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struct thread
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{
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struct object obj; /* object header */
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struct thread *next; /* system-wide thread list */
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struct thread *prev;
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struct thread *proc_next; /* per-process thread list */
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struct thread *proc_prev;
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struct process *process;
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struct mutex *mutex; /* 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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struct msg_queue *queue; /* message queue */
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struct startup_info*info; /* startup info for child process */
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struct thread_wait *wait; /* current wait condition if sleeping */
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struct thread_apc *apc_head; /* queue of async procedure calls */
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struct thread_apc *apc_tail; /* queue of async procedure calls */
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unsigned int error; /* current error code */
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struct object *request_fd; /* fd for receiving client requests */
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int pass_fd; /* fd to pass to the client */
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int reply_fd; /* fd to use to wake a client waiting on a reply */
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enum run_state state; /* running state */
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int attached; /* is thread attached with ptrace? */
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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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CONTEXT *context; /* current context if in an exception handler */
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void *teb; /* TEB address (in client address space) */
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int priority; /* priority level */
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int affinity; /* affinity mask */
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int suspend; /* suspend count */
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void *buffer; /* buffer for communication with the client */
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struct server_buffer_info *buffer_info; /* buffer information structure */
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enum request last_req; /* last request received (for debugging) */
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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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/* callback function for building the thread reply when sleep_on is finished */
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typedef void (*sleep_reply)( struct thread *thread, struct object *obj, int signaled );
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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( void *id );
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extern struct thread *get_thread_from_handle( int handle, unsigned int access );
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extern struct thread *get_thread_from_pid( int pid );
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extern int suspend_thread( struct thread *thread, int check_limit );
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extern int resume_thread( struct thread *thread );
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extern void suspend_all_threads( void );
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extern void resume_all_threads( void );
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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 wake_up( struct object *obj, int max );
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extern int sleep_on( int count, struct object *objects[], int flags,
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int timeout, sleep_reply func );
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extern int thread_queue_apc( struct thread *thread, struct object *owner, void *func,
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enum apc_type type, int nb_args, ... );
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extern void thread_cancel_apc( struct thread *thread, struct object *owner );
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extern struct thread_snapshot *thread_snap( int *count );
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/* ptrace functions */
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extern void sigchld_handler();
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extern void wait4_thread( struct thread *thread, int signal );
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extern void stop_thread( struct thread *thread );
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extern void continue_thread( struct thread *thread );
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extern void detach_thread( struct thread *thread, int sig );
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extern int suspend_for_ptrace( struct thread *thread );
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extern int read_thread_int( struct thread *thread, const int *addr, int *data );
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extern int write_thread_int( struct thread *thread, int *addr, int data, unsigned int mask );
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extern void *get_thread_ip( struct thread *thread );
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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 *get_thread_id( struct thread *thread ) { return thread; }
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#endif /* __WINE_SERVER_THREAD_H */
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