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;
135 unsigned long namehash_; /* hashed filename, used as inode num */
137 /* Full unix path name of this file */
138 /* File open flags from open () and fcntl () calls */
142 char *rabuf; /* used for crlf conversion in text files */
148 char *unix_path_name_;
149 char *win32_path_name_;
152 void set_name (const char * unix_path, const char * win32_path = NULL,
155 virtual fhandler_base& operator =(fhandler_base &x);
156 fhandler_base (DWORD dev, const char *name = 0, int unit = 0);
157 virtual ~fhandler_base ();
159 /* Non-virtual simple accessor functions. */
160 void set_io_handle (HANDLE x) { io_handle = x; }
162 void set_cb (size_t size) { cb = size; }
163 DWORD get_device () { return status & FH_DEVMASK; }
164 virtual int get_unit () { return 0; }
165 virtual BOOL is_slow () { return get_device () < FH_SLOW; }
167 int get_access () { return access_; }
168 void set_access (int x) { access_ = x; }
170 int get_async () { return FHISSETF (ASYNC); }
171 void set_async (int x) { FHCONDSETF (x, ASYNC); }
173 int get_flags () { return openflags_; }
174 void set_flags (int x) { openflags_ = x; }
176 int get_w_binary () { return FHISSETF (WBINARY); }
177 int get_r_binary () { return FHISSETF (RBINARY); }
179 int get_w_binset () { return FHISSETF (WBINSET); }
180 int get_r_binset () { return FHISSETF (RBINSET); }
182 void set_w_binary (int b) { FHCONDSETF (b, WBINARY); FHSETF (WBINSET); }
183 void set_r_binary (int b) { FHCONDSETF (b, RBINARY); FHSETF (RBINSET); }
185 int get_default_fmode (int flags);
187 int get_r_no_interrupt () { return FHISSETF (NOEINTR); }
188 void set_r_no_interrupt (int b) { FHCONDSETF (b, NOEINTR); }
190 int get_close_on_exec () { return FHISSETF (CLOEXEC); }
191 int set_close_on_exec_flag (int b) { return FHCONDSETF (b, CLOEXEC); }
193 void set_check_win95_lseek_bug (int b = 1) { FHCONDSETF (b, W95LSBUG); }
194 int get_check_win95_lseek_bug () { return FHISSETF (W95LSBUG); }
196 int get_need_fork_fixup () { return FHISSETF (FFIXUP); }
197 void set_need_fork_fixup () { FHSETF (FFIXUP); }
199 virtual void set_close_on_exec (int val);
201 virtual void fixup_before_fork_exec (DWORD) {}
202 virtual void fixup_after_fork (HANDLE);
203 virtual void fixup_after_exec (HANDLE) {}
205 int get_symlink_p () { return FHISSETF (SYMLINK); }
206 void set_symlink_p (int val) { FHCONDSETF (val, SYMLINK); }
207 void set_symlink_p () { FHSETF (SYMLINK); }
209 int get_socket_p () { return FHISSETF (LOCAL); }
210 void set_socket_p (int val) { FHCONDSETF (val, LOCAL); }
211 void set_socket_p () { FHSETF (LOCAL); }
213 int get_execable_p () { return FHISSETF (EXECABL); }
214 void set_execable_p (int val) { FHCONDSETF (val, EXECABL); }
215 void set_execable_p () { FHSETF (EXECABL); }
217 int get_append_p () { return FHISSETF (APPEND); }
218 void set_append_p (int val) { FHCONDSETF (val, APPEND); }
219 void set_append_p () { FHSETF (APPEND); }
221 int get_readahead_valid () { return raixget < ralen; }
222 int puts_readahead (const char *s, size_t len = (size_t) -1);
223 int put_readahead (char value);
225 int get_readahead ();
226 int peek_readahead (int queryput = 0);
228 int eat_readahead (int n);
230 void set_readahead_valid (int val, int ch = -1);
232 int get_readahead_into_buffer (char *buf, size_t buflen);
234 int has_acls () { return FHISSETF (HASACLS); }
235 void set_has_acls (int val) { FHCONDSETF (val, HASACLS); }
237 int no_free_names () { return FHISSETF (NOFRNAME); }
238 void set_no_free_names (int val) { FHCONDSETF (val, NOFRNAME); }
239 void set_no_free_names () { FHSETF (NOFRNAME); }
241 const char *get_name () { return unix_path_name_; }
242 const char *get_win32_name () { return win32_path_name_; }
243 unsigned long get_namehash () { return namehash_; }
245 virtual void hclose (HANDLE h) {CloseHandle (h);}
246 virtual void set_inheritance (HANDLE &h, int not_inheriting,
247 const char *name = NULL);
249 /* fixup fd possibly non-inherited handles after fork */
250 void fork_fixup (HANDLE parent, HANDLE &h, const char *name);
252 /* Potentially overridden virtual functions. */
253 virtual int open (const char *, int flags, mode_t mode = 0)
255 return open (flags, mode);
257 virtual int open (int flags, mode_t mode = 0);
258 virtual int close ();
259 virtual int fstat (struct stat *buf) { return stat_dev (get_device (), get_unit (), get_namehash (), buf); }
260 virtual int ioctl (unsigned int cmd, void *);
261 virtual int fcntl (int cmd, void *);
262 virtual char const * ttyname () { return get_name(); }
263 virtual int read (void *ptr, size_t len);
264 virtual int write (const void *ptr, size_t len);
265 virtual off_t lseek (off_t offset, int whence);
266 virtual int lock (int, struct flock *);
267 virtual void dump ();
268 virtual int dup (fhandler_base *child);
270 virtual HANDLE mmap (caddr_t *addr, size_t len, DWORD access,
271 int flags, off_t off);
272 virtual int munmap (HANDLE h, caddr_t addr, size_t len);
273 virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags);
275 void *operator new (size_t, void *p) {return p;}
277 virtual void init (HANDLE, DWORD, mode_t);
279 virtual int tcflush (int);
280 virtual int tcsendbreak (int);
281 virtual int tcdrain ();
282 virtual int tcflow (int);
283 virtual int tcsetattr (int a, const struct termios *t);
284 virtual int tcgetattr (struct termios *t);
285 virtual int tcsetpgrp (const pid_t pid);
286 virtual int tcgetpgrp ();
287 virtual int is_tty () { return 0; }
288 virtual BOOL is_device () { return TRUE; }
289 virtual char *ptsname () { return NULL;}
290 virtual class fhandler_socket *is_socket () { return 0; }
291 virtual class fhandler_console *is_console () { return 0; }
292 virtual int is_windows () {return 0; }
294 virtual int raw_read (void *ptr, size_t ulen);
295 virtual int raw_write (const void *ptr, size_t ulen);
297 /* Virtual accessor functions to hide the fact
298 that some fd's have two handles. */
299 virtual HANDLE get_handle () const { return io_handle; }
300 virtual HANDLE get_io_handle () const { return io_handle; }
301 virtual HANDLE get_output_handle () const { return io_handle; }
302 virtual BOOL hit_eof () {return FALSE;}
303 virtual select_record *select_read (select_record *s);
304 virtual select_record *select_write (select_record *s);
305 virtual select_record *select_except (select_record *s);
306 virtual int ready_for_read (int fd, DWORD howlong, int ignra);
307 virtual const char * get_native_name ()
309 return windows_device_names[FHDEVN (status)];
311 virtual int bg_check (int) {return 1;}
312 void clear_readahead ()
314 raixput = raixget = ralen = rabuflen = 0;
317 void operator delete (void *);
320 class fhandler_socket: public fhandler_base
324 struct _WSAPROTOCOL_INFOA *prot_info_ptr;
327 fhandler_socket (const char *name = 0);
329 int get_socket () const { return (int) get_handle(); }
330 fhandler_socket * is_socket () { return this; }
331 int write (const void *ptr, size_t len);
332 int read (void *ptr, size_t len);
333 int ioctl (unsigned int cmd, void *);
334 int fcntl (int cmd, void *);
335 off_t lseek (off_t, int) { return 0; }
337 void hclose (HANDLE) {close ();}
338 int dup (fhandler_base *child);
340 virtual void fixup_before_fork_exec (DWORD);
341 void fixup_after_fork (HANDLE);
342 void fixup_after_exec (HANDLE parent) { fixup_after_fork (parent); }
344 select_record *select_read (select_record *s);
345 select_record *select_write (select_record *s);
346 select_record *select_except (select_record *s);
347 int ready_for_read (int fd, DWORD howlong, int ignra);
348 int get_addr_family () {return addr_family;}
349 void set_addr_family (int af) {addr_family = af;}
352 class fhandler_pipe: public fhandler_base
355 fhandler_pipe (const char *name = 0, DWORD devtype = FH_PIPE);
356 off_t lseek (off_t offset, int whence);
357 /* This strange test is due to the fact that we can't rely on
358 Windows shells to "do the right thing" with pipes. Apparently
359 the can keep one end of the pipe open when it shouldn't be. */
360 BOOL is_slow () {return os_being_run == winNT;}
361 select_record *select_read (select_record *s);
362 select_record *select_write (select_record *s);
363 select_record *select_except (select_record *s);
364 int ready_for_read (int fd, DWORD howlong, int ignra);
367 class fhandler_dev_raw: public fhandler_base
374 int eom_detected : 1;
375 int eof_detected : 1;
376 int lastblk_to_read : 1;
382 virtual void clear (void);
383 virtual int writebuf (void);
385 /* returns not null, if `win_error' determines an end of media condition */
386 virtual int is_eom(int win_error) = 0;
387 /* returns not null, if `win_error' determines an end of file condition */
388 virtual int is_eof(int win_error) = 0;
390 fhandler_dev_raw (DWORD dev, const char *name, int unit);
393 ~fhandler_dev_raw (void);
395 int open (const char *path, int flags, mode_t mode = 0);
398 int raw_read (void *ptr, size_t ulen);
399 int raw_write (const void *ptr, size_t ulen);
401 int fstat (struct stat *buf);
403 int dup (fhandler_base *child);
405 int ioctl (unsigned int cmd, void *buf);
408 class fhandler_dev_floppy: public fhandler_dev_raw
411 virtual int is_eom (int win_error);
412 virtual int is_eof (int win_error);
415 fhandler_dev_floppy (const char *name, int unit);
417 virtual int open (const char *path, int flags, mode_t mode = 0);
418 virtual int close (void);
420 virtual off_t lseek (off_t offset, int whence);
422 virtual int ioctl (unsigned int cmd, void *buf);
425 class fhandler_dev_tape: public fhandler_dev_raw
431 virtual void clear (void);
433 virtual int is_eom (int win_error);
434 virtual int is_eof (int win_error);
437 fhandler_dev_tape (const char *name, int unit);
439 virtual int open (const char *path, int flags, mode_t mode = 0);
440 virtual int close (void);
442 virtual off_t lseek (off_t offset, int whence);
444 virtual int fstat (struct stat *buf);
446 virtual int dup (fhandler_base *child);
448 virtual int ioctl (unsigned int cmd, void *buf);
451 int tape_write_marks (int marktype, DWORD len);
452 int tape_get_pos (unsigned long *ret);
453 int tape_set_pos (int mode, long count, BOOLEAN sfm_func = FALSE);
454 int tape_erase (int mode);
455 int tape_prepare (int action);
456 BOOLEAN tape_get_feature (DWORD parm);
457 int tape_get_blocksize (long *min, long *def, long *max, long *cur);
458 int tape_set_blocksize (long count);
459 int tape_status (struct mtget *get);
460 int tape_compression (long count);
463 /* Standard disk file */
465 class fhandler_disk_file: public fhandler_base
468 int check_execable_p (const char *path);
471 fhandler_disk_file (const char *name);
473 int open (const char *path, int flags, mode_t mode = 0);
474 int open (path_conv& real_path, int flags, mode_t mode);
476 int lock (int, struct flock *);
477 BOOL is_device () { return FALSE; }
478 int fstat (struct stat *buf);
480 HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
481 int munmap (HANDLE h, caddr_t addr, size_t len);
482 int msync (HANDLE h, caddr_t addr, size_t len, int flags);
485 class fhandler_serial: public fhandler_base
488 unsigned int vmin_; /* from termios */
489 unsigned int vtime_; /* from termios */
493 int overlapped_armed;
494 OVERLAPPED io_status;
497 fhandler_serial (const char *name, DWORD devtype = FH_SERIAL, int unit = 0);
499 int open (const char *path, int flags, mode_t mode);
501 void init (HANDLE h, DWORD a, mode_t flags);
502 void overlapped_setup ();
503 int dup (fhandler_base *child);
504 int raw_read (void *ptr, size_t ulen);
505 int raw_write (const void *ptr, size_t ulen);
506 int tcsendbreak (int);
509 int tcsetattr (int a, const struct termios *t);
510 int tcgetattr (struct termios *t);
511 off_t lseek (off_t, int) { return 0; }
514 int is_tty () { return 1; }
515 void fixup_after_fork (HANDLE parent);
516 void fixup_after_exec (HANDLE);
518 /* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we
519 don't use it for permissions checking. fhandler_tty_slave does
520 permission checking on pgrps. */
521 virtual int tcgetpgrp () { return pgrp_; }
522 virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; }
523 select_record *select_read (select_record *s);
524 select_record *select_write (select_record *s);
525 select_record *select_except (select_record *s);
526 int ready_for_read (int fd, DWORD howlong, int ignra);
529 #define acquire_output_mutex(ms) \
530 __acquire_output_mutex (__PRETTY_FUNCTION__, __LINE__, ms);
532 #define release_output_mutex() \
533 __release_output_mutex (__PRETTY_FUNCTION__, __LINE__);
537 class fhandler_termios: public fhandler_base
540 HANDLE output_handle;
541 virtual void doecho (const void *, DWORD) {};
542 virtual int accept_input () {return 1;};
545 fhandler_termios (DWORD dev, const char *name = 0, int unit = 0) :
546 fhandler_base (dev, name, unit)
550 HANDLE get_output_handle () const { return output_handle; }
551 int line_edit (const char *rptr, int nread, int always_accept = 0);
552 void set_output_handle (HANDLE h) { output_handle = h; }
553 void tcinit (tty_min *this_tc, int force = FALSE);
554 virtual int is_tty () { return 1; }
556 int tcsetpgrp (int pid);
557 void set_ctty (int ttynum, int flags);
558 int bg_check (int sig);
559 virtual DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms) {return 1;}
560 virtual void __release_output_mutex (const char *fn, int ln) {}
563 /* This is a input and output console handle */
564 class fhandler_console: public fhandler_termios
570 // enum {normal, gotesc, gotsquare, gotarg1, gotcommand} state;
589 void clear_screen (int, int, int, int);
590 void scroll_screen (int, int, int, int, int, int);
591 void cursor_set (BOOL, int, int);
592 void cursor_get (int *, int *);
593 void cursor_rel (int, int);
594 const unsigned char * write_normal (unsigned const char*, unsigned const char *);
595 void char_command (char);
596 int output_tcsetattr (int a, const struct termios *t);
599 int igncr_enabled ();
600 int input_tcsetattr (int a, const struct termios *t);
601 void set_cursor_maybe ();
605 fhandler_console (const char *name);
607 fhandler_console* is_console () { return this; }
609 int open (const char *path, int flags, mode_t mode = 0);
611 int write (const void *ptr, size_t len);
612 void doecho (const void *str, DWORD len) { (void) write (str, len); }
613 int read (void *ptr, size_t len);
617 int tcsetattr (int a, const struct termios *t);
618 int tcgetattr (struct termios *t);
620 /* Special dup as we must dup two handles */
621 int dup (fhandler_base *child);
623 int ioctl (unsigned int cmd, void *);
624 void init (HANDLE, DWORD, mode_t);
626 select_record *select_read (select_record *s);
627 select_record *select_write (select_record *s);
628 select_record *select_except (select_record *s);
629 int ready_for_read (int fd, DWORD howlong, int ignra);
630 void fixup_after_exec (HANDLE);
631 void set_close_on_exec (int val);
632 void fixup_after_fork (HANDLE parent);
633 void set_input_state ();
636 class fhandler_tty_common: public fhandler_termios
639 fhandler_tty_common (DWORD dev, const char *name = 0, int unit = 0) :
640 fhandler_termios (dev, name, unit),
645 HANDLE output_done_event; // Raised by master when tty's output buffer
646 // written. Write status in tty::write_retval.
647 HANDLE ioctl_request_event; // Raised by slave to perform ioctl() request.
648 // Ioctl() request in tty::cmd/arg.
649 HANDLE ioctl_done_event; // Raised by master on ioctl() completion.
650 // Ioctl() status in tty::ioctl_retval.
652 HANDLE inuse; // used to indicate that a tty is in use
655 DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms);
656 void __release_output_mutex (const char *fn, int ln);
658 int ttynum; // Master tty num.
659 virtual int dup (fhandler_base *child);
661 tty *get_ttyp () { return (tty *)tc; }
662 int get_unit () { return ttynum; }
665 void set_close_on_exec (int val);
666 void fixup_after_fork (HANDLE parent);
667 select_record *select_read (select_record *s);
668 select_record *select_write (select_record *s);
669 select_record *select_except (select_record *s);
670 int ready_for_read (int fd, DWORD howlong, int ignra);
673 class fhandler_tty_slave: public fhandler_tty_common
677 fhandler_tty_slave (const char *name);
678 fhandler_tty_slave (int, const char *name);
680 int open (const char *path, int flags, mode_t mode = 0);
681 int write (const void *ptr, size_t len);
682 int read (void *ptr, size_t len);
683 void init (HANDLE, DWORD, mode_t);
685 int tcsetattr (int a, const struct termios *t);
686 int tcgetattr (struct termios *t);
688 int ioctl (unsigned int cmd, void *);
690 off_t lseek (off_t, int) { return 0; }
693 class fhandler_pty_master: public fhandler_tty_common
695 int pktmode; // non-zero if pty in a packet mode.
697 int need_nl; // Next read should start with \n
700 fhandler_pty_master (const char *name, DWORD devtype = FH_PTYM, int unit = -1);
702 int process_slave_output (char *buf, size_t len, int pktmode_on);
703 void doecho (const void *str, DWORD len);
705 int open (const char *path, int flags, mode_t mode = 0);
706 int write (const void *ptr, size_t len);
707 int read (void *ptr, size_t len);
710 int tcsetattr (int a, const struct termios *t);
711 int tcgetattr (struct termios *t);
713 int ioctl (unsigned int cmd, void *);
715 off_t lseek (off_t, int) { return 0; }
718 void set_close_on_exec (int val);
722 class fhandler_tty_master: public fhandler_pty_master
726 fhandler_tty_master (const char *name, int unit);
727 fhandler_console *console; // device handler to perform real i/o.
728 HANDLE hThread; // process_output thread handle.
732 void fixup_after_fork (HANDLE parent);
733 void fixup_after_exec (HANDLE);
736 class fhandler_dev_null: public fhandler_base
739 fhandler_dev_null (const char *name);
742 select_record *select_read (select_record *s);
743 select_record *select_write (select_record *s);
744 select_record *select_except (select_record *s);
747 class fhandler_dev_zero: public fhandler_base
750 fhandler_dev_zero (const char *name);
751 int open (const char *path, int flags, mode_t mode = 0);
752 int write (const void *ptr, size_t len);
753 int read (void *ptr, size_t len);
754 off_t lseek (off_t offset, int whence);
760 class fhandler_dev_random: public fhandler_base
764 HCRYPTPROV crypt_prov;
767 BOOL crypt_gen_random (void *ptr, size_t len);
768 int pseudo_write (const void *ptr, size_t len);
769 int pseudo_read (void *ptr, size_t len);
772 fhandler_dev_random (const char *name, int unit);
773 int get_unit () { return unit; }
774 int open (const char *path, int flags, mode_t mode = 0);
775 int write (const void *ptr, size_t len);
776 int read (void *ptr, size_t len);
777 off_t lseek (off_t offset, int whence);
779 int dup (fhandler_base *child);
784 class fhandler_dev_mem: public fhandler_base
792 fhandler_dev_mem (const char *name, int unit);
793 ~fhandler_dev_mem (void);
795 int open (const char *path, int flags, mode_t mode = 0);
796 int write (const void *ptr, size_t ulen);
797 int read (void *ptr, size_t ulen);
798 off_t lseek (off_t offset, int whence);
800 int fstat (struct stat *buf);
801 int dup (fhandler_base *child);
803 HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
804 int munmap (HANDLE h, caddr_t addr, size_t len);
805 int msync (HANDLE h, caddr_t addr, size_t len, int flags);
810 class fhandler_dev_clipboard: public fhandler_base
813 fhandler_dev_clipboard (const char *name);
814 int is_windows (void) { return 1; }
815 int open (const char *path, int flags, mode_t mode = 0);
816 int write (const void *ptr, size_t len);
817 int read (void *ptr, size_t len);
818 off_t lseek (off_t offset, int whence);
824 class fhandler_windows: public fhandler_base
827 HWND hWnd_; // the window whose messages are to be retrieved by read() call
828 int method_; // write method (Post or Send)
830 fhandler_windows (const char *name = 0);
831 int is_windows (void) { return 1; }
832 int open (const char *path, int flags, mode_t mode = 0);
833 int write (const void *ptr, size_t len);
834 int read (void *ptr, size_t len);
835 int ioctl (unsigned int cmd, void *);
836 off_t lseek (off_t, int) { return 0; }
837 int close (void) { return 0; }
839 void set_close_on_exec (int val);
840 void fixup_after_fork (HANDLE parent);
841 select_record *select_read (select_record *s);
842 select_record *select_write (select_record *s);
843 select_record *select_except (select_record *s);
844 int ready_for_read (int fd, DWORD howlong, int ignra);
848 /* You can't do this */
851 fhandler_normal normal;
852 fhandler_dev_null dev_null;
857 #define fhandler_union fhandler_console
866 BOOL read_ready, write_ready, except_ready;
867 BOOL read_selected, write_selected, except_selected;
868 int (*startup) (select_record *me, class select_stuff *stuff);
869 int (*poll) (select_record *me, fd_set *readfds, fd_set *writefds,
871 int (*verify) (select_record *me, fd_set *readfds, fd_set *writefds,
873 void (*cleanup) (select_record *me, class select_stuff *stuff);
874 struct select_record *next;
876 select_record (fhandler_base *in_fh = NULL) : fd (0), h (NULL),
877 fh (in_fh), saw_error (0), windows_handle (0),
878 read_ready (0), write_ready (0), except_ready (0),
879 read_selected (0), write_selected (0), except_selected (0),
880 startup (NULL), poll (NULL), verify (NULL), cleanup (NULL),
888 select_stuff (): always_ready (0), windows_used (0), start (0)
890 memset (device_specific, 0, sizeof (device_specific));
892 BOOL always_ready, windows_used;
894 void *device_specific[FH_NDEV];
896 int test_and_set (int i, fd_set *readfds, fd_set *writefds,
898 int poll (fd_set *readfds, fd_set *writefds, fd_set *exceptfds);
899 int wait (fd_set *readfds, fd_set *writefds, fd_set *exceptfds, DWORD ms);
902 uid_t __stdcall get_file_owner (int, const char *);
903 gid_t __stdcall get_file_group (int, const char *);
904 int __stdcall set_console_state_for_spawn ();
906 #endif /* _FHANDLER_H_ */