127 lines
5.1 KiB
C
127 lines
5.1 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 apc_queue
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{
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struct thread_apc *head;
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struct thread_apc *tail;
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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 apc_queue system_apc; /* queue of system async procedure calls */
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struct apc_queue user_apc; /* queue of user 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( handle_t 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 sec, int usec, 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 system, int nb_args, ... );
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extern void thread_cancel_apc( struct thread *thread, struct object *owner, int system );
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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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