3 Copyright 1996, 1997, 1998, 1999, 2000 Cygnus Solutions.
5 This file is part of Cygwin.
7 This software is a copyrighted work licensed under the terms of the
8 Cygwin license. Please consult the file "CYGWIN_LICENSE" for
14 #include <sys/ioctl.h>
18 Code is located in fhandler.cc unless another file name is given.
20 fhandler_base normal I/O
23 fhandler_serial Adds vmin and vtime.
24 fhandler_dev_null Not really I/O
25 fhandler_dev_zero Faked
27 fhandler_dev_raw (fhandler_raw.cc)
28 fhandler_dev_floppy (fhandler_floppy.cc)
29 fhandler_dev_tape (fhandler_tape.cc)
32 fhandler_socket (fhandler_socket.cc)
34 fhandler_tty_slave (tty.cc)
35 fhandler_pty_master (tty.cc)
36 fhandler_tty_master (tty.cc)
38 fhandler_console Out with ansi control. (console.cc)
40 fhandler_windows Windows messages I/O (fhandler_windows.cc)
42 fhandler_dev_random /dev/[u]random implementation (fhandler_random.cc)
44 fhandler_dev_mem /dev/mem implementation (fhandler_mem.cc)
46 fhandler_dev_clipboard /dev/clipboard implementation (fhandler_clipboard.cc)
48 fhandler_proc Interesting possibility, not implemented yet
53 FH_RBINARY = 0x00001000, /* binary read mode */
54 FH_WBINARY = 0x00002000, /* binary write mode */
55 FH_CLOEXEC = 0x00004000, /* close-on-exec */
56 FH_RBINSET = 0x00008000, /* binary read mode has been explicitly set */
57 FH_WBINSET = 0x00010000, /* binary write mode has been explicitly set */
58 FH_APPEND = 0x00020000, /* always append */
59 FH_ASYNC = 0x00040000, /* async I/O */
60 FH_HADEOF = 0x00080000, /* EOF seen */
62 FH_SYMLINK = 0x00100000, /* is a symlink */
63 FH_EXECABL = 0x00200000, /* file looked like it would run:
64 * ends in .exe or .bat or begins with #! */
65 FH_W95LSBUG= 0x00400000, /* set when lseek is called as a flag that
66 * _write should check if we've moved beyond
67 * EOF, zero filling if so. */
68 FH_NOFRNAME= 0x00800000, /* Set if shouldn't free unix_path_name_ and
69 windows_path_name_ on destruction. */
70 FH_NOEINTR = 0x01000000, /* Set if I/O should be uninterruptible. */
71 FH_FFIXUP = 0x02000000, /* Set if need to fixup after fork. */
72 FH_LOCAL = 0x04000000, /* File is unix domain socket */
73 FH_FIFO = 0x08000000, /* File is FIFO */
74 FH_HASACLS = 0x40000000, /* True if fs of file has ACLS */
79 FH_CONSOLE = 0x00000001, /* is a console */
80 FH_CONIN = 0x00000002, /* console input */
81 FH_CONOUT = 0x00000003, /* console output */
82 FH_TTYM = 0x00000004, /* is a tty master */
83 FH_TTYS = 0x00000005, /* is a tty slave */
84 FH_PTYM = 0x00000006, /* is a pty master */
85 FH_SERIAL = 0x00000007, /* is a serial port */
86 FH_PIPE = 0x00000008, /* is a pipe */
87 FH_PIPER = 0x00000009, /* read end of a pipe */
88 FH_PIPEW = 0x0000000a, /* write end of a pipe */
89 FH_SOCKET = 0x0000000b, /* is a socket */
90 FH_WINDOWS = 0x0000000c, /* is a window */
92 FH_SLOW = 0x00000010, /* "slow" device if below this */
95 FH_DISK = 0x00000010, /* is a disk */
96 FH_FLOPPY = 0x00000011, /* is a floppy */
97 FH_TAPE = 0x00000012, /* is a tape */
98 FH_NULL = 0x00000013, /* is the null device */
99 FH_ZERO = 0x00000014, /* is the zero device */
100 FH_RANDOM = 0x00000015, /* is a random device */
101 FH_MEM = 0x00000016, /* is a mem device */
102 FH_CLIPBOARD = 0x00000017, /* is a clipbaord device */
104 FH_NDEV = 0x00000018, /* Maximum number of devices */
105 FH_DEVMASK = 0x00000fff, /* devices live here */
109 #define FHDEVN(n) ((n) & FH_DEVMASK)
110 #define FHISSETF(x) __ISSETF (this, x, FH)
111 #define FHSETF(x) __SETF (this, x, FH)
112 #define FHCLEARF(x) __CLEARF (this, x, FH)
113 #define FHCONDSETF(n, x) __CONDSETF(n, this, x, FH)
117 extern const char *windows_device_names[];
118 extern struct __cygwin_perfile *perfile_table;
119 #define __fmode (*(user_data->fmode_ptr))
123 class fhandler_disk_file;
133 enum executable_states
137 dont_care_if_executable,
138 dont_know_if_executable
151 unsigned long namehash_; /* hashed filename, used as inode num */
153 /* Full unix path name of this file */
154 /* File open flags from open () and fcntl () calls */
158 char *rabuf; /* used for crlf conversion in text files */
164 char *unix_path_name_;
165 char *win32_path_name_;
168 void set_name (const char * unix_path, const char * win32_path = NULL,
171 virtual fhandler_base& operator =(fhandler_base &x);
172 fhandler_base (DWORD dev, const char *name = 0, int unit = 0);
173 virtual ~fhandler_base ();
175 /* Non-virtual simple accessor functions. */
176 void set_io_handle (HANDLE x) { io_handle = x; }
178 void set_cb (size_t size) { cb = size; }
179 DWORD get_device () { return status & FH_DEVMASK; }
180 virtual int get_unit () { return 0; }
181 virtual BOOL is_slow () { return get_device () < FH_SLOW; }
183 int get_access () { return access_; }
184 void set_access (int x) { access_ = x; }
186 int get_async () { return FHISSETF (ASYNC); }
187 void set_async (int x) { FHCONDSETF (x, ASYNC); }
189 int get_flags () { return openflags_; }
190 void set_flags (int x) { openflags_ = x; }
192 int get_w_binary () { return FHISSETF (WBINARY); }
193 int get_r_binary () { return FHISSETF (RBINARY); }
195 int get_w_binset () { return FHISSETF (WBINSET); }
196 int get_r_binset () { return FHISSETF (RBINSET); }
198 void set_w_binary (int b) { FHCONDSETF (b, WBINARY); FHSETF (WBINSET); }
199 void set_r_binary (int b) { FHCONDSETF (b, RBINARY); FHSETF (RBINSET); }
201 int get_default_fmode (int flags);
203 int get_r_no_interrupt () { return FHISSETF (NOEINTR); }
204 void set_r_no_interrupt (int b) { FHCONDSETF (b, NOEINTR); }
206 int get_close_on_exec () { return FHISSETF (CLOEXEC); }
207 int set_close_on_exec_flag (int b) { return FHCONDSETF (b, CLOEXEC); }
209 void set_check_win95_lseek_bug (int b = 1) { FHCONDSETF (b, W95LSBUG); }
210 int get_check_win95_lseek_bug () { return FHISSETF (W95LSBUG); }
212 int get_need_fork_fixup () { return FHISSETF (FFIXUP); }
213 void set_need_fork_fixup () { FHSETF (FFIXUP); }
215 virtual void set_close_on_exec (int val);
217 virtual void fixup_before_fork_exec (DWORD) {}
218 virtual void fixup_after_fork (HANDLE);
219 virtual void fixup_after_exec (HANDLE) {}
221 int get_symlink_p () { return FHISSETF (SYMLINK); }
222 void set_symlink_p (int val) { FHCONDSETF (val, SYMLINK); }
223 void set_symlink_p () { FHSETF (SYMLINK); }
225 int get_socket_p () { return FHISSETF (LOCAL); }
226 void set_socket_p (int val) { FHCONDSETF (val, LOCAL); }
227 void set_socket_p () { FHSETF (LOCAL); }
229 int get_execable_p () { return FHISSETF (EXECABL); }
230 void set_execable_p (executable_states val)
232 FHCONDSETF (val == is_executable, EXECABL);
234 void set_execable_p () { FHSETF (EXECABL); }
236 int get_append_p () { return FHISSETF (APPEND); }
237 void set_append_p (int val) { FHCONDSETF (val, APPEND); }
238 void set_append_p () { FHSETF (APPEND); }
240 int get_readahead_valid () { return raixget < ralen; }
241 int puts_readahead (const char *s, size_t len = (size_t) -1);
242 int put_readahead (char value);
244 int get_readahead ();
245 int peek_readahead (int queryput = 0);
247 int eat_readahead (int n);
249 void set_readahead_valid (int val, int ch = -1);
251 int get_readahead_into_buffer (char *buf, size_t buflen);
253 int has_acls () { return FHISSETF (HASACLS); }
254 void set_has_acls (int val) { FHCONDSETF (val, HASACLS); }
256 int no_free_names () { return FHISSETF (NOFRNAME); }
257 void set_no_free_names (int val) { FHCONDSETF (val, NOFRNAME); }
258 void set_no_free_names () { FHSETF (NOFRNAME); }
260 const char *get_name () { return unix_path_name_; }
261 const char *get_win32_name () { return win32_path_name_; }
262 unsigned long get_namehash () { return namehash_; }
264 virtual void hclose (HANDLE h) {CloseHandle (h);}
265 virtual void set_inheritance (HANDLE &h, int not_inheriting,
266 const char *name = NULL);
268 /* fixup fd possibly non-inherited handles after fork */
269 void fork_fixup (HANDLE parent, HANDLE &h, const char *name);
271 /* Potentially overridden virtual functions. */
272 virtual int open (const char *, int flags, mode_t mode = 0)
274 return open (flags, mode);
276 virtual int open (int flags, mode_t mode = 0);
277 virtual int close ();
278 virtual int fstat (struct stat *buf) { return stat_dev (get_device (), get_unit (), get_namehash (), buf); }
279 virtual int ioctl (unsigned int cmd, void *);
280 virtual int fcntl (int cmd, void *);
281 virtual char const * ttyname () { return get_name(); }
282 virtual int read (void *ptr, size_t len);
283 virtual int write (const void *ptr, size_t len);
284 virtual off_t lseek (off_t offset, int whence);
285 virtual int lock (int, struct flock *);
286 virtual void dump ();
287 virtual int dup (fhandler_base *child);
289 virtual HANDLE mmap (caddr_t *addr, size_t len, DWORD access,
290 int flags, off_t off);
291 virtual int munmap (HANDLE h, caddr_t addr, size_t len);
292 virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags);
293 virtual BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
294 DWORD size, void *address);
296 void *operator new (size_t, void *p) {return p;}
298 virtual void init (HANDLE, DWORD, mode_t);
300 virtual int tcflush (int);
301 virtual int tcsendbreak (int);
302 virtual int tcdrain ();
303 virtual int tcflow (int);
304 virtual int tcsetattr (int a, const struct termios *t);
305 virtual int tcgetattr (struct termios *t);
306 virtual int tcsetpgrp (const pid_t pid);
307 virtual int tcgetpgrp ();
308 virtual int is_tty () { return 0; }
309 virtual BOOL is_device () { return TRUE; }
310 virtual char *ptsname () { return NULL;}
311 virtual class fhandler_socket *is_socket () { return 0; }
312 virtual class fhandler_console *is_console () { return 0; }
313 virtual int is_windows () {return 0; }
315 virtual int raw_read (void *ptr, size_t ulen);
316 virtual int raw_write (const void *ptr, size_t ulen);
318 /* Virtual accessor functions to hide the fact
319 that some fd's have two handles. */
320 virtual HANDLE& get_handle () { return io_handle; }
321 virtual HANDLE& get_io_handle () { return io_handle; }
322 virtual HANDLE& get_output_handle () { return io_handle; }
323 virtual BOOL hit_eof () {return FALSE;}
324 virtual select_record *select_read (select_record *s);
325 virtual select_record *select_write (select_record *s);
326 virtual select_record *select_except (select_record *s);
327 virtual int ready_for_read (int fd, DWORD howlong, int ignra);
328 virtual const char * get_native_name ()
330 return windows_device_names[FHDEVN (status)];
332 virtual bg_check_types bg_check (int) {return bg_ok;}
333 void clear_readahead ()
335 raixput = raixget = ralen = rabuflen = 0;
338 void operator delete (void *);
341 class fhandler_socket: public fhandler_base
345 struct _WSAPROTOCOL_INFOA *prot_info_ptr;
348 fhandler_socket (const char *name = 0);
350 int get_socket () { return (int) get_handle(); }
351 fhandler_socket * is_socket () { return this; }
352 int write (const void *ptr, size_t len);
353 int read (void *ptr, size_t len);
354 int ioctl (unsigned int cmd, void *);
355 int fcntl (int cmd, void *);
356 off_t lseek (off_t, int) { return 0; }
358 void hclose (HANDLE) {close ();}
359 int dup (fhandler_base *child);
361 virtual void fixup_before_fork_exec (DWORD);
362 void fixup_after_fork (HANDLE);
363 void fixup_after_exec (HANDLE parent) { fixup_after_fork (parent); }
365 select_record *select_read (select_record *s);
366 select_record *select_write (select_record *s);
367 select_record *select_except (select_record *s);
368 int ready_for_read (int fd, DWORD howlong, int ignra);
369 int get_addr_family () {return addr_family;}
370 void set_addr_family (int af) {addr_family = af;}
373 class fhandler_pipe: public fhandler_base
376 fhandler_pipe (const char *name = 0, DWORD devtype = FH_PIPE);
377 off_t lseek (off_t offset, int whence);
378 /* This strange test is due to the fact that we can't rely on
379 Windows shells to "do the right thing" with pipes. Apparently
380 the can keep one end of the pipe open when it shouldn't be. */
381 BOOL is_slow () {return os_being_run == winNT;}
382 select_record *select_read (select_record *s);
383 select_record *select_write (select_record *s);
384 select_record *select_except (select_record *s);
385 int ready_for_read (int fd, DWORD howlong, int ignra);
388 class fhandler_dev_raw: public fhandler_base
395 int eom_detected : 1;
396 int eof_detected : 1;
397 int lastblk_to_read : 1;
403 virtual void clear (void);
404 virtual int writebuf (void);
406 /* returns not null, if `win_error' determines an end of media condition */
407 virtual int is_eom(int win_error) = 0;
408 /* returns not null, if `win_error' determines an end of file condition */
409 virtual int is_eof(int win_error) = 0;
411 fhandler_dev_raw (DWORD dev, const char *name, int unit);
414 ~fhandler_dev_raw (void);
416 int open (const char *path, int flags, mode_t mode = 0);
419 int raw_read (void *ptr, size_t ulen);
420 int raw_write (const void *ptr, size_t ulen);
422 int fstat (struct stat *buf);
424 int dup (fhandler_base *child);
426 int ioctl (unsigned int cmd, void *buf);
428 void fixup_after_fork (HANDLE);
429 void fixup_after_exec (HANDLE parent) { fixup_after_fork (parent); }
432 class fhandler_dev_floppy: public fhandler_dev_raw
435 virtual int is_eom (int win_error);
436 virtual int is_eof (int win_error);
439 fhandler_dev_floppy (const char *name, int unit);
441 virtual int open (const char *path, int flags, mode_t mode = 0);
442 virtual int close (void);
444 virtual off_t lseek (off_t offset, int whence);
446 virtual int ioctl (unsigned int cmd, void *buf);
449 class fhandler_dev_tape: public fhandler_dev_raw
455 virtual void clear (void);
457 virtual int is_eom (int win_error);
458 virtual int is_eof (int win_error);
461 fhandler_dev_tape (const char *name, int unit);
463 virtual int open (const char *path, int flags, mode_t mode = 0);
464 virtual int close (void);
466 virtual off_t lseek (off_t offset, int whence);
468 virtual int fstat (struct stat *buf);
470 virtual int dup (fhandler_base *child);
472 virtual int ioctl (unsigned int cmd, void *buf);
475 int tape_write_marks (int marktype, DWORD len);
476 int tape_get_pos (unsigned long *ret);
477 int tape_set_pos (int mode, long count, BOOLEAN sfm_func = FALSE);
478 int tape_erase (int mode);
479 int tape_prepare (int action);
480 BOOLEAN tape_get_feature (DWORD parm);
481 int tape_get_blocksize (long *min, long *def, long *max, long *cur);
482 int tape_set_blocksize (long count);
483 int tape_status (struct mtget *get);
484 int tape_compression (long count);
487 /* Standard disk file */
489 class fhandler_disk_file: public fhandler_base
492 fhandler_disk_file (const char *name);
494 int open (const char *path, int flags, mode_t mode = 0);
495 int open (path_conv& real_path, int flags, mode_t mode);
497 int lock (int, struct flock *);
498 BOOL is_device () { return FALSE; }
499 int fstat (struct stat *buf);
501 HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
502 int munmap (HANDLE h, caddr_t addr, size_t len);
503 int msync (HANDLE h, caddr_t addr, size_t len, int flags);
504 BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
505 DWORD size, void *address);
508 class fhandler_serial: public fhandler_base
511 unsigned int vmin_; /* from termios */
512 unsigned int vtime_; /* from termios */
516 int overlapped_armed;
517 OVERLAPPED io_status;
520 fhandler_serial (const char *name, DWORD devtype = FH_SERIAL, int unit = 0);
522 int open (const char *path, int flags, mode_t mode);
524 void init (HANDLE h, DWORD a, mode_t flags);
525 void overlapped_setup ();
526 int dup (fhandler_base *child);
527 int raw_read (void *ptr, size_t ulen);
528 int raw_write (const void *ptr, size_t ulen);
529 int tcsendbreak (int);
532 int tcsetattr (int a, const struct termios *t);
533 int tcgetattr (struct termios *t);
534 off_t lseek (off_t, int) { return 0; }
537 int is_tty () { return 1; }
538 void fixup_after_fork (HANDLE parent);
539 void fixup_after_exec (HANDLE);
541 /* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we
542 don't use it for permissions checking. fhandler_tty_slave does
543 permission checking on pgrps. */
544 virtual int tcgetpgrp () { return pgrp_; }
545 virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; }
546 select_record *select_read (select_record *s);
547 select_record *select_write (select_record *s);
548 select_record *select_except (select_record *s);
549 int ready_for_read (int fd, DWORD howlong, int ignra);
552 #define acquire_output_mutex(ms) \
553 __acquire_output_mutex (__PRETTY_FUNCTION__, __LINE__, ms);
555 #define release_output_mutex() \
556 __release_output_mutex (__PRETTY_FUNCTION__, __LINE__);
560 class fhandler_termios: public fhandler_base
563 HANDLE output_handle;
564 virtual void doecho (const void *, DWORD) {};
565 virtual int accept_input () {return 1;};
568 fhandler_termios (DWORD dev, const char *name = 0, int unit = 0) :
569 fhandler_base (dev, name, unit)
571 set_need_fork_fixup ();
573 HANDLE& get_output_handle () { return output_handle; }
574 int line_edit (const char *rptr, int nread, int always_accept = 0);
575 void set_output_handle (HANDLE h) { output_handle = h; }
576 void tcinit (tty_min *this_tc, int force = FALSE);
577 virtual int is_tty () { return 1; }
579 int tcsetpgrp (int pid);
580 void set_ctty (int ttynum, int flags);
581 bg_check_types bg_check (int sig);
582 virtual DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms) {return 1;}
583 virtual void __release_output_mutex (const char *fn, int ln) {}
584 void fixup_after_fork (HANDLE);
585 void fixup_after_exec (HANDLE parent) { fixup_after_fork (parent); }
606 /* This is a input and output console handle */
607 class fhandler_console: public fhandler_termios
611 WORD default_color, underline_color, dim_color;
613 /* Used to determine if an input keystroke should be modified with META. */
621 BOOL saw_question_mark;
623 char my_title_buf [TITLESIZE + 1];
625 WORD current_win32_attr;
626 ansi_intensity intensity;
627 BOOL underline, blink, reverse;
630 /* saved cursor coordinates */
643 COORD dwCursorPosition;
647 COORD dwLastCursorPosition;
648 DWORD dwLastButtonState;
652 BOOL raw_win32_keyboard_mode;
655 void set_default_attr ();
656 WORD get_win32_attr ();
659 void clear_screen (int, int, int, int);
660 void scroll_screen (int, int, int, int, int, int);
661 void cursor_set (BOOL, int, int);
662 void cursor_get (int *, int *);
663 void cursor_rel (int, int);
664 const unsigned char * write_normal (unsigned const char*, unsigned const char *);
665 void char_command (char);
666 BOOL set_raw_win32_keyboard_mode (BOOL);
667 int output_tcsetattr (int a, const struct termios *t);
670 int igncr_enabled ();
671 int input_tcsetattr (int a, const struct termios *t);
672 void set_cursor_maybe ();
676 fhandler_console (const char *name);
678 fhandler_console* is_console () { return this; }
680 int open (const char *path, int flags, mode_t mode = 0);
682 int write (const void *ptr, size_t len);
683 void doecho (const void *str, DWORD len) { (void) write (str, len); }
684 int read (void *ptr, size_t len);
688 int tcsetattr (int a, const struct termios *t);
689 int tcgetattr (struct termios *t);
691 /* Special dup as we must dup two handles */
692 int dup (fhandler_base *child);
694 int ioctl (unsigned int cmd, void *);
695 void init (HANDLE, DWORD, mode_t);
696 bool mouse_aware () {return use_mouse;}
698 select_record *select_read (select_record *s);
699 select_record *select_write (select_record *s);
700 select_record *select_except (select_record *s);
701 int ready_for_read (int fd, DWORD howlong, int ignra);
702 void fixup_after_exec (HANDLE);
703 void set_close_on_exec (int val);
704 void fixup_after_fork (HANDLE parent);
705 void set_input_state ();
708 class fhandler_tty_common: public fhandler_termios
711 fhandler_tty_common (DWORD dev, const char *name = 0, int unit = 0) :
712 fhandler_termios (dev, name, unit),
717 HANDLE output_done_event; // Raised by master when tty's output buffer
718 // written. Write status in tty::write_retval.
719 HANDLE ioctl_request_event; // Raised by slave to perform ioctl() request.
720 // Ioctl() request in tty::cmd/arg.
721 HANDLE ioctl_done_event; // Raised by master on ioctl() completion.
722 // Ioctl() status in tty::ioctl_retval.
723 HANDLE output_mutex, input_mutex;
724 HANDLE input_available_event;
725 HANDLE inuse; // used to indicate that a tty is in use
728 DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms);
729 void __release_output_mutex (const char *fn, int ln);
731 int ttynum; // Master tty num.
732 virtual int dup (fhandler_base *child);
734 tty *get_ttyp () { return (tty *)tc; }
735 int get_unit () { return ttynum; }
738 void set_close_on_exec (int val);
739 void fixup_after_fork (HANDLE parent);
740 select_record *select_read (select_record *s);
741 select_record *select_write (select_record *s);
742 select_record *select_except (select_record *s);
743 int ready_for_read (int fd, DWORD howlong, int ignra);
746 class fhandler_tty_slave: public fhandler_tty_common
750 fhandler_tty_slave (const char *name);
751 fhandler_tty_slave (int, const char *name);
753 int open (const char *path, int flags, mode_t mode = 0);
754 int write (const void *ptr, size_t len);
755 int read (void *ptr, size_t len);
756 void init (HANDLE, DWORD, mode_t);
758 int tcsetattr (int a, const struct termios *t);
759 int tcgetattr (struct termios *t);
761 int ioctl (unsigned int cmd, void *);
763 off_t lseek (off_t, int) { return 0; }
766 class fhandler_pty_master: public fhandler_tty_common
768 int pktmode; // non-zero if pty in a packet mode.
770 int need_nl; // Next read should start with \n
773 fhandler_pty_master (const char *name, DWORD devtype = FH_PTYM, int unit = -1);
775 int process_slave_output (char *buf, size_t len, int pktmode_on);
776 void doecho (const void *str, DWORD len);
778 int open (const char *path, int flags, mode_t mode = 0);
779 int write (const void *ptr, size_t len);
780 int read (void *ptr, size_t len);
783 int tcsetattr (int a, const struct termios *t);
784 int tcgetattr (struct termios *t);
786 int ioctl (unsigned int cmd, void *);
788 off_t lseek (off_t, int) { return 0; }
791 void set_close_on_exec (int val);
795 class fhandler_tty_master: public fhandler_pty_master
799 fhandler_tty_master (const char *name, int unit);
800 fhandler_console *console; // device handler to perform real i/o.
801 HANDLE hThread; // process_output thread handle.
805 void fixup_after_fork (HANDLE parent);
806 void fixup_after_exec (HANDLE);
809 class fhandler_dev_null: public fhandler_base
812 fhandler_dev_null (const char *name);
815 select_record *select_read (select_record *s);
816 select_record *select_write (select_record *s);
817 select_record *select_except (select_record *s);
820 class fhandler_dev_zero: public fhandler_base
823 fhandler_dev_zero (const char *name);
824 int open (const char *path, int flags, mode_t mode = 0);
825 int write (const void *ptr, size_t len);
826 int read (void *ptr, size_t len);
827 off_t lseek (off_t offset, int whence);
833 class fhandler_dev_random: public fhandler_base
837 HCRYPTPROV crypt_prov;
840 BOOL crypt_gen_random (void *ptr, size_t len);
841 int pseudo_write (const void *ptr, size_t len);
842 int pseudo_read (void *ptr, size_t len);
845 fhandler_dev_random (const char *name, int unit);
846 int get_unit () { return unit; }
847 int open (const char *path, int flags, mode_t mode = 0);
848 int write (const void *ptr, size_t len);
849 int read (void *ptr, size_t len);
850 off_t lseek (off_t offset, int whence);
852 int dup (fhandler_base *child);
857 class fhandler_dev_mem: public fhandler_base
865 fhandler_dev_mem (const char *name, int unit);
866 ~fhandler_dev_mem (void);
868 int open (const char *path, int flags, mode_t mode = 0);
869 int write (const void *ptr, size_t ulen);
870 int read (void *ptr, size_t ulen);
871 off_t lseek (off_t offset, int whence);
873 int fstat (struct stat *buf);
874 int dup (fhandler_base *child);
876 HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
877 int munmap (HANDLE h, caddr_t addr, size_t len);
878 int msync (HANDLE h, caddr_t addr, size_t len, int flags);
879 BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
880 DWORD size, void *address);
885 class fhandler_dev_clipboard: public fhandler_base
888 fhandler_dev_clipboard (const char *name);
889 int is_windows (void) { return 1; }
890 int open (const char *path, int flags, mode_t mode = 0);
891 int write (const void *ptr, size_t len);
892 int read (void *ptr, size_t len);
893 off_t lseek (off_t offset, int whence);
899 class fhandler_windows: public fhandler_base
902 HWND hWnd_; // the window whose messages are to be retrieved by read() call
903 int method_; // write method (Post or Send)
905 fhandler_windows (const char *name = 0);
906 int is_windows (void) { return 1; }
907 int open (const char *path, int flags, mode_t mode = 0);
908 int write (const void *ptr, size_t len);
909 int read (void *ptr, size_t len);
910 int ioctl (unsigned int cmd, void *);
911 off_t lseek (off_t, int) { return 0; }
912 int close (void) { return 0; }
914 void set_close_on_exec (int val);
915 void fixup_after_fork (HANDLE parent);
916 select_record *select_read (select_record *s);
917 select_record *select_write (select_record *s);
918 select_record *select_except (select_record *s);
919 int ready_for_read (int fd, DWORD howlong, int ignra);
923 /* You can't do this */
926 fhandler_normal normal;
927 fhandler_dev_null dev_null;
932 #define fhandler_union fhandler_console
941 BOOL read_ready, write_ready, except_ready;
942 BOOL read_selected, write_selected, except_selected;
943 int (*startup) (select_record *me, class select_stuff *stuff);
944 int (*poll) (select_record *me, fd_set *readfds, fd_set *writefds,
946 int (*verify) (select_record *me, fd_set *readfds, fd_set *writefds,
948 void (*cleanup) (select_record *me, class select_stuff *stuff);
949 struct select_record *next;
951 select_record (fhandler_base *in_fh = NULL) : fd (0), h (NULL),
952 fh (in_fh), saw_error (0), windows_handle (0),
953 read_ready (0), write_ready (0), except_ready (0),
954 read_selected (0), write_selected (0), except_selected (0),
955 startup (NULL), poll (NULL), verify (NULL), cleanup (NULL),
963 select_stuff (): always_ready (0), windows_used (0), start (0)
965 memset (device_specific, 0, sizeof (device_specific));
967 BOOL always_ready, windows_used;
969 void *device_specific[FH_NDEV];
971 int test_and_set (int i, fd_set *readfds, fd_set *writefds,
973 int poll (fd_set *readfds, fd_set *writefds, fd_set *exceptfds);
974 int wait (fd_set *readfds, fd_set *writefds, fd_set *exceptfds, DWORD ms);
977 int __stdcall set_console_state_for_spawn ();
979 #endif /* _FHANDLER_H_ */