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/*
* Wine server threads
*
* Copyright (C) 1998 Alexandre Julliard
*/
#ifndef __WINE_SERVER_THREAD_H
#define __WINE_SERVER_THREAD_H
#ifndef __WINE_SERVER__
#error This file can only be used in the Wine server
#endif
#include "object.h"
/* thread structure */
struct process;
struct thread_wait;
struct thread_apc;
struct mutex;
struct debug_ctx;
enum run_state
{
RUNNING, /* running normally */
TERMINATED /* terminated */
};
struct thread
{
struct object obj; /* object header */
struct thread *next; /* system-wide thread list */
struct thread *prev;
struct thread *proc_next; /* per-process thread list */
struct thread *proc_prev;
struct process *process;
struct mutex *mutex; /* list of currently owned mutexes */
struct debug_ctx *debug_ctx; /* debugger context if this thread is a debugger */
struct thread_wait *wait; /* current wait condition if sleeping */
struct thread_apc *apc; /* list of async procedure calls */
int apc_count; /* number of outstanding APCs */
int error; /* current error code */
int pass_fd; /* fd to pass to the client */
enum run_state state; /* running state */
int attached; /* is thread attached with ptrace? */
int exit_code; /* thread exit code */
int unix_pid; /* Unix pid of client */
void *teb; /* TEB address (in client address space) */
int priority; /* priority level */
int affinity; /* affinity mask */
int suspend; /* suspend count */
void *buffer; /* buffer for communication with the client */
enum request last_req; /* last request received (for debugging) */
};
/* callback function for building the thread reply when sleep_on is finished */
typedef void (*sleep_reply)( struct thread *thread, struct object *obj, int signaled );
extern struct thread *current;
/* thread functions */
extern void create_initial_thread( int fd );
extern struct thread *get_thread_from_id( void *id );
extern struct thread *get_thread_from_handle( int handle, unsigned int access );
extern struct thread *get_thread_from_pid( int pid );
extern int suspend_thread( struct thread *thread, int check_limit );
extern int resume_thread( struct thread *thread );
extern void suspend_all_threads( void );
extern void resume_all_threads( void );
extern int add_queue( struct object *obj, struct wait_queue_entry *entry );
extern void remove_queue( struct object *obj, struct wait_queue_entry *entry );
extern void kill_thread( struct thread *thread, int exit_code );
extern void wake_up( struct object *obj, int max );
extern int sleep_on( int count, struct object *objects[], int flags,
int timeout, sleep_reply func );
/* ptrace functions */
extern void sigchld_handler();
extern void wait4_thread( struct thread *thread, int signal );
extern void stop_thread( struct thread *thread );
extern void continue_thread( struct thread *thread );
extern void detach_thread( struct thread *thread );
extern int read_thread_int( struct thread *thread, const int *addr, int *data );
extern int write_thread_int( struct thread *thread, int *addr, int data, unsigned int mask );
static inline int get_error(void) { return current->error; }
static inline void set_error( int err ) { current->error = err; }
static inline void clear_error(void) { set_error(0); }
#endif /* __WINE_SERVER_THREAD_H */
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