94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/* select.h
|
|
|
|
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
|
2005, 2006, 2007, 2008, 2009, 2010, 2011 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#ifndef _SELECT_H_
|
|
#define _SELECT_H_
|
|
|
|
struct select_record
|
|
{
|
|
int fd;
|
|
HANDLE h;
|
|
fhandler_base *fh;
|
|
int thread_errno;
|
|
bool windows_handle;
|
|
bool read_ready, write_ready, except_ready;
|
|
bool read_selected, write_selected, except_selected;
|
|
bool except_on_write;
|
|
int (*startup) (select_record *me, class select_stuff *stuff);
|
|
int (*peek) (select_record *, bool);
|
|
int (*verify) (select_record *me, fd_set *readfds, fd_set *writefds,
|
|
fd_set *exceptfds);
|
|
void (*cleanup) (select_record *me, class select_stuff *stuff);
|
|
struct select_record *next;
|
|
void set_select_errno () {__seterrno (); thread_errno = errno;}
|
|
int saw_error () {return thread_errno;}
|
|
select_record () {}
|
|
select_record (int): fd (0), h (NULL), fh (NULL), thread_errno (0),
|
|
windows_handle (false), read_ready (false), write_ready (false),
|
|
except_ready (false), read_selected (false), write_selected (false),
|
|
except_selected (false), except_on_write (false),
|
|
startup (NULL), peek (NULL), verify (NULL), cleanup (NULL),
|
|
next (NULL) {}
|
|
};
|
|
|
|
struct select_info
|
|
{
|
|
cygthread *thread;
|
|
bool stop_thread;
|
|
select_record *start;
|
|
select_info () {}
|
|
};
|
|
|
|
struct select_pipe_info: public select_info
|
|
{
|
|
};
|
|
|
|
struct select_socket_info: public select_info
|
|
{
|
|
int num_w4;
|
|
LONG *ser_num;
|
|
HANDLE *w4;
|
|
};
|
|
|
|
struct select_serial_info: public select_info
|
|
{
|
|
};
|
|
|
|
struct select_mailslot_info: public select_info
|
|
{
|
|
};
|
|
|
|
class select_stuff
|
|
{
|
|
public:
|
|
~select_stuff ();
|
|
bool always_ready, windows_used;
|
|
select_record start;
|
|
|
|
select_pipe_info *device_specific_pipe;
|
|
select_socket_info *device_specific_socket;
|
|
select_serial_info *device_specific_serial;
|
|
select_mailslot_info *device_specific_mailslot;
|
|
|
|
bool test_and_set (int i, fd_set *readfds, fd_set *writefds,
|
|
fd_set *exceptfds);
|
|
int poll (fd_set *readfds, fd_set *writefds, fd_set *exceptfds);
|
|
int wait (fd_set *readfds, fd_set *writefds, fd_set *exceptfds, DWORD ms);
|
|
void cleanup ();
|
|
void destroy ();
|
|
select_stuff (): always_ready (0), windows_used (0), start (0),
|
|
device_specific_pipe (0),
|
|
device_specific_socket (0),
|
|
device_specific_serial (0),
|
|
device_specific_mailslot (0) {}
|
|
};
|
|
#endif /* _SELECT_H_ */
|