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0ea3f30e DJ |
1 | /* Serial interface for local (hardwired) serial ports on Windows systems |
2 | ||
9b254dd1 | 3 | Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc. |
0ea3f30e DJ |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
0ea3f30e DJ |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
0ea3f30e DJ |
19 | |
20 | #include "defs.h" | |
21 | #include "serial.h" | |
22 | #include "ser-base.h" | |
23 | #include "ser-tcp.h" | |
24 | ||
25 | #include <windows.h> | |
c3e2b812 | 26 | #include <conio.h> |
0ea3f30e DJ |
27 | |
28 | #include <fcntl.h> | |
29 | #include <unistd.h> | |
30 | #include <sys/types.h> | |
31 | ||
32 | #include "gdb_assert.h" | |
33 | #include "gdb_string.h" | |
34 | ||
35 | void _initialize_ser_windows (void); | |
36 | ||
37 | struct ser_windows_state | |
38 | { | |
39 | int in_progress; | |
40 | OVERLAPPED ov; | |
41 | DWORD lastCommMask; | |
42 | HANDLE except_event; | |
43 | }; | |
44 | ||
45 | /* Open up a real live device for serial I/O. */ | |
46 | ||
47 | static int | |
48 | ser_windows_open (struct serial *scb, const char *name) | |
49 | { | |
50 | HANDLE h; | |
51 | struct ser_windows_state *state; | |
52 | COMMTIMEOUTS timeouts; | |
53 | ||
54 | /* Only allow COM ports. */ | |
55 | if (strncmp (name, "COM", 3) != 0) | |
56 | { | |
57 | errno = ENOENT; | |
58 | return -1; | |
59 | } | |
60 | ||
61 | h = CreateFile (name, GENERIC_READ | GENERIC_WRITE, 0, NULL, | |
62 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); | |
63 | if (h == INVALID_HANDLE_VALUE) | |
64 | { | |
65 | errno = ENOENT; | |
66 | return -1; | |
67 | } | |
68 | ||
69 | scb->fd = _open_osfhandle ((long) h, O_RDWR); | |
70 | if (scb->fd < 0) | |
71 | { | |
72 | errno = ENOENT; | |
73 | return -1; | |
74 | } | |
75 | ||
76 | if (!SetCommMask (h, EV_RXCHAR)) | |
77 | { | |
78 | errno = EINVAL; | |
79 | return -1; | |
80 | } | |
81 | ||
82 | timeouts.ReadIntervalTimeout = MAXDWORD; | |
83 | timeouts.ReadTotalTimeoutConstant = 0; | |
84 | timeouts.ReadTotalTimeoutMultiplier = 0; | |
85 | timeouts.WriteTotalTimeoutConstant = 0; | |
86 | timeouts.WriteTotalTimeoutMultiplier = 0; | |
87 | if (!SetCommTimeouts (h, &timeouts)) | |
88 | { | |
89 | errno = EINVAL; | |
90 | return -1; | |
91 | } | |
92 | ||
93 | state = xmalloc (sizeof (struct ser_windows_state)); | |
94 | memset (state, 0, sizeof (struct ser_windows_state)); | |
95 | scb->state = state; | |
96 | ||
97 | /* Create a manual reset event to watch the input buffer. */ | |
98 | state->ov.hEvent = CreateEvent (0, TRUE, FALSE, 0); | |
99 | ||
100 | /* Create a (currently unused) handle to record exceptions. */ | |
101 | state->except_event = CreateEvent (0, TRUE, FALSE, 0); | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
106 | /* Wait for the output to drain away, as opposed to flushing (discarding) | |
107 | it. */ | |
108 | ||
109 | static int | |
110 | ser_windows_drain_output (struct serial *scb) | |
111 | { | |
112 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
113 | ||
114 | return (FlushFileBuffers (h) != 0) ? 0 : -1; | |
115 | } | |
116 | ||
117 | static int | |
118 | ser_windows_flush_output (struct serial *scb) | |
119 | { | |
120 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
121 | ||
122 | return (PurgeComm (h, PURGE_TXCLEAR) != 0) ? 0 : -1; | |
123 | } | |
124 | ||
125 | static int | |
126 | ser_windows_flush_input (struct serial *scb) | |
127 | { | |
128 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
129 | ||
130 | return (PurgeComm (h, PURGE_RXCLEAR) != 0) ? 0 : -1; | |
131 | } | |
132 | ||
133 | static int | |
134 | ser_windows_send_break (struct serial *scb) | |
135 | { | |
136 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
137 | ||
138 | if (SetCommBreak (h) == 0) | |
139 | return -1; | |
140 | ||
141 | /* Delay for 250 milliseconds. */ | |
142 | Sleep (250); | |
143 | ||
144 | if (ClearCommBreak (h)) | |
145 | return -1; | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
150 | static void | |
151 | ser_windows_raw (struct serial *scb) | |
152 | { | |
153 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
154 | DCB state; | |
155 | ||
156 | if (GetCommState (h, &state) == 0) | |
157 | return; | |
158 | ||
159 | state.fParity = FALSE; | |
160 | state.fOutxCtsFlow = FALSE; | |
161 | state.fOutxDsrFlow = FALSE; | |
162 | state.fDtrControl = DTR_CONTROL_ENABLE; | |
163 | state.fDsrSensitivity = FALSE; | |
164 | state.fOutX = FALSE; | |
165 | state.fInX = FALSE; | |
166 | state.fNull = FALSE; | |
167 | state.fAbortOnError = FALSE; | |
168 | state.ByteSize = 8; | |
169 | state.Parity = NOPARITY; | |
170 | ||
171 | scb->current_timeout = 0; | |
172 | ||
173 | if (SetCommState (h, &state) == 0) | |
174 | warning (_("SetCommState failed\n")); | |
175 | } | |
176 | ||
177 | static int | |
178 | ser_windows_setstopbits (struct serial *scb, int num) | |
179 | { | |
180 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
181 | DCB state; | |
182 | ||
183 | if (GetCommState (h, &state) == 0) | |
184 | return -1; | |
185 | ||
186 | switch (num) | |
187 | { | |
188 | case SERIAL_1_STOPBITS: | |
189 | state.StopBits = ONESTOPBIT; | |
190 | break; | |
191 | case SERIAL_1_AND_A_HALF_STOPBITS: | |
192 | state.StopBits = ONE5STOPBITS; | |
193 | break; | |
194 | case SERIAL_2_STOPBITS: | |
195 | state.StopBits = TWOSTOPBITS; | |
196 | break; | |
197 | default: | |
198 | return 1; | |
199 | } | |
200 | ||
201 | return (SetCommState (h, &state) != 0) ? 0 : -1; | |
202 | } | |
203 | ||
204 | static int | |
205 | ser_windows_setbaudrate (struct serial *scb, int rate) | |
206 | { | |
207 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
208 | DCB state; | |
209 | ||
210 | if (GetCommState (h, &state) == 0) | |
211 | return -1; | |
212 | ||
213 | state.BaudRate = rate; | |
214 | ||
215 | return (SetCommState (h, &state) != 0) ? 0 : -1; | |
216 | } | |
217 | ||
218 | static void | |
219 | ser_windows_close (struct serial *scb) | |
220 | { | |
221 | struct ser_windows_state *state; | |
222 | ||
223 | /* Stop any pending selects. */ | |
224 | CancelIo ((HANDLE) _get_osfhandle (scb->fd)); | |
225 | state = scb->state; | |
226 | CloseHandle (state->ov.hEvent); | |
227 | CloseHandle (state->except_event); | |
228 | ||
229 | if (scb->fd < 0) | |
230 | return; | |
231 | ||
232 | close (scb->fd); | |
233 | scb->fd = -1; | |
234 | ||
235 | xfree (scb->state); | |
236 | } | |
237 | ||
238 | static void | |
239 | ser_windows_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
240 | { | |
241 | struct ser_windows_state *state; | |
242 | COMSTAT status; | |
243 | DWORD errors; | |
244 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); | |
245 | ||
246 | state = scb->state; | |
247 | ||
248 | *except = state->except_event; | |
249 | *read = state->ov.hEvent; | |
250 | ||
251 | if (state->in_progress) | |
252 | return; | |
253 | ||
254 | /* Reset the mask - we are only interested in any characters which | |
255 | arrive after this point, not characters which might have arrived | |
256 | and already been read. */ | |
257 | ||
258 | /* This really, really shouldn't be necessary - just the second one. | |
259 | But otherwise an internal flag for EV_RXCHAR does not get | |
260 | cleared, and we get a duplicated event, if the last batch | |
261 | of characters included at least two arriving close together. */ | |
262 | if (!SetCommMask (h, 0)) | |
263 | warning (_("ser_windows_wait_handle: reseting mask failed")); | |
264 | ||
265 | if (!SetCommMask (h, EV_RXCHAR)) | |
266 | warning (_("ser_windows_wait_handle: reseting mask failed (2)")); | |
267 | ||
268 | /* There's a potential race condition here; we must check cbInQue | |
269 | and not wait if that's nonzero. */ | |
270 | ||
271 | ClearCommError (h, &errors, &status); | |
272 | if (status.cbInQue > 0) | |
273 | { | |
274 | SetEvent (state->ov.hEvent); | |
275 | return; | |
276 | } | |
277 | ||
278 | state->in_progress = 1; | |
279 | ResetEvent (state->ov.hEvent); | |
280 | state->lastCommMask = -2; | |
281 | if (WaitCommEvent (h, &state->lastCommMask, &state->ov)) | |
282 | { | |
283 | gdb_assert (state->lastCommMask & EV_RXCHAR); | |
284 | SetEvent (state->ov.hEvent); | |
285 | } | |
286 | else | |
287 | gdb_assert (GetLastError () == ERROR_IO_PENDING); | |
288 | } | |
289 | ||
290 | static int | |
291 | ser_windows_read_prim (struct serial *scb, size_t count) | |
292 | { | |
293 | struct ser_windows_state *state; | |
294 | OVERLAPPED ov; | |
295 | DWORD bytes_read, bytes_read_tmp; | |
296 | HANDLE h; | |
297 | gdb_byte *p; | |
298 | ||
299 | state = scb->state; | |
300 | if (state->in_progress) | |
301 | { | |
302 | WaitForSingleObject (state->ov.hEvent, INFINITE); | |
303 | state->in_progress = 0; | |
304 | ResetEvent (state->ov.hEvent); | |
305 | } | |
306 | ||
307 | memset (&ov, 0, sizeof (OVERLAPPED)); | |
308 | ov.hEvent = CreateEvent (0, FALSE, FALSE, 0); | |
309 | h = (HANDLE) _get_osfhandle (scb->fd); | |
310 | ||
311 | if (!ReadFile (h, scb->buf, /* count */ 1, &bytes_read, &ov)) | |
312 | { | |
313 | if (GetLastError () != ERROR_IO_PENDING | |
314 | || !GetOverlappedResult (h, &ov, &bytes_read, TRUE)) | |
315 | bytes_read = -1; | |
316 | } | |
317 | ||
318 | CloseHandle (ov.hEvent); | |
319 | return bytes_read; | |
320 | } | |
321 | ||
322 | static int | |
323 | ser_windows_write_prim (struct serial *scb, const void *buf, size_t len) | |
324 | { | |
325 | struct ser_windows_state *state; | |
326 | OVERLAPPED ov; | |
327 | DWORD bytes_written; | |
328 | HANDLE h; | |
329 | ||
330 | memset (&ov, 0, sizeof (OVERLAPPED)); | |
331 | ov.hEvent = CreateEvent (0, FALSE, FALSE, 0); | |
332 | h = (HANDLE) _get_osfhandle (scb->fd); | |
333 | if (!WriteFile (h, buf, len, &bytes_written, &ov)) | |
334 | { | |
335 | if (GetLastError () != ERROR_IO_PENDING | |
336 | || !GetOverlappedResult (h, &ov, &bytes_written, TRUE)) | |
337 | bytes_written = -1; | |
338 | } | |
339 | ||
340 | CloseHandle (ov.hEvent); | |
341 | return bytes_written; | |
342 | } | |
343 | ||
4577549b DJ |
344 | /* On Windows, gdb_select is implemented using WaitForMulpleObjects. |
345 | A "select thread" is created for each file descriptor. These | |
346 | threads looks for activity on the corresponding descriptor, using | |
347 | whatever techniques are appropriate for the descriptor type. When | |
348 | that activity occurs, the thread signals an appropriate event, | |
349 | which wakes up WaitForMultipleObjects. | |
350 | ||
351 | Each select thread is in one of two states: stopped or started. | |
352 | Select threads begin in the stopped state. When gdb_select is | |
353 | called, threads corresponding to the descriptors of interest are | |
354 | started by calling a wait_handle function. Each thread that | |
355 | notices activity signals the appropriate event and then reenters | |
356 | the stopped state. Before gdb_select returns it calls the | |
357 | wait_handle_done functions, which return the threads to the stopped | |
358 | state. */ | |
359 | ||
360 | enum select_thread_state { | |
361 | STS_STARTED, | |
362 | STS_STOPPED | |
363 | }; | |
364 | ||
0ea3f30e DJ |
365 | struct ser_console_state |
366 | { | |
4577549b DJ |
367 | /* Signaled by the select thread to indicate that data is available |
368 | on the file descriptor. */ | |
0ea3f30e | 369 | HANDLE read_event; |
4577549b DJ |
370 | /* Signaled by the select thread to indicate that an exception has |
371 | occurred on the file descriptor. */ | |
0ea3f30e | 372 | HANDLE except_event; |
4577549b DJ |
373 | /* Signaled by the select thread to indicate that it has entered the |
374 | started state. HAVE_STARTED and HAVE_STOPPED are never signaled | |
375 | simultaneously. */ | |
376 | HANDLE have_started; | |
377 | /* Signaled by the select thread to indicate that it has stopped, | |
378 | either because data is available (and READ_EVENT is signaled), | |
379 | because an exception has occurred (and EXCEPT_EVENT is signaled), | |
380 | or because STOP_SELECT was signaled. */ | |
381 | HANDLE have_stopped; | |
0ea3f30e | 382 | |
4577549b DJ |
383 | /* Signaled by the main program to tell the select thread to enter |
384 | the started state. */ | |
0ea3f30e | 385 | HANDLE start_select; |
4577549b DJ |
386 | /* Signaled by the main program to tell the select thread to enter |
387 | the stopped state. */ | |
0ea3f30e | 388 | HANDLE stop_select; |
4577549b DJ |
389 | /* Signaled by the main program to tell the select thread to |
390 | exit. */ | |
c3e2b812 | 391 | HANDLE exit_select; |
c3e2b812 | 392 | |
4577549b | 393 | /* The handle for the select thread. */ |
c3e2b812 | 394 | HANDLE thread; |
4577549b DJ |
395 | /* The state of the select thread. This field is only accessed in |
396 | the main program, never by the select thread itself. */ | |
397 | enum select_thread_state thread_state; | |
0ea3f30e DJ |
398 | }; |
399 | ||
4577549b DJ |
400 | /* Called by a select thread to enter the stopped state. This |
401 | function does not return until the thread has re-entered the | |
402 | started state. */ | |
403 | static void | |
404 | select_thread_wait (struct ser_console_state *state) | |
405 | { | |
406 | HANDLE wait_events[2]; | |
407 | ||
408 | /* There are two things that can wake us up: a request that we enter | |
409 | the started state, or that we exit this thread. */ | |
410 | wait_events[0] = state->start_select; | |
411 | wait_events[1] = state->exit_select; | |
412 | if (WaitForMultipleObjects (2, wait_events, FALSE, INFINITE) | |
413 | != WAIT_OBJECT_0) | |
414 | /* Either the EXIT_SELECT event was signaled (requesting that the | |
415 | thread exit) or an error has occurred. In either case, we exit | |
416 | the thread. */ | |
417 | ExitThread (0); | |
418 | ||
419 | /* We are now in the started state. */ | |
420 | SetEvent (state->have_started); | |
421 | } | |
422 | ||
423 | typedef DWORD WINAPI (*thread_fn_type)(void *); | |
424 | ||
425 | /* Create a new select thread for SCB executing THREAD_FN. The STATE | |
426 | will be filled in by this function before return. */ | |
427 | void | |
428 | create_select_thread (thread_fn_type thread_fn, | |
429 | struct serial *scb, | |
430 | struct ser_console_state *state) | |
431 | { | |
432 | DWORD threadId; | |
433 | ||
434 | /* Create all of the events. These are all auto-reset events. */ | |
435 | state->read_event = CreateEvent (NULL, FALSE, FALSE, NULL); | |
436 | state->except_event = CreateEvent (NULL, FALSE, FALSE, NULL); | |
437 | state->have_started = CreateEvent (NULL, FALSE, FALSE, NULL); | |
438 | state->have_stopped = CreateEvent (NULL, FALSE, FALSE, NULL); | |
439 | state->start_select = CreateEvent (NULL, FALSE, FALSE, NULL); | |
440 | state->stop_select = CreateEvent (NULL, FALSE, FALSE, NULL); | |
441 | state->exit_select = CreateEvent (NULL, FALSE, FALSE, NULL); | |
442 | ||
443 | state->thread = CreateThread (NULL, 0, thread_fn, scb, 0, &threadId); | |
444 | /* The thread begins in the stopped state. */ | |
445 | state->thread_state = STS_STOPPED; | |
446 | } | |
447 | ||
448 | /* Destroy the select thread indicated by STATE. */ | |
449 | static void | |
450 | destroy_select_thread (struct ser_console_state *state) | |
451 | { | |
452 | /* Ask the thread to exit. */ | |
453 | SetEvent (state->exit_select); | |
454 | /* Wait until it does. */ | |
455 | WaitForSingleObject (state->thread, INFINITE); | |
456 | ||
457 | /* Destroy the events. */ | |
458 | CloseHandle (state->read_event); | |
459 | CloseHandle (state->except_event); | |
460 | CloseHandle (state->have_started); | |
461 | CloseHandle (state->have_stopped); | |
462 | CloseHandle (state->start_select); | |
463 | CloseHandle (state->stop_select); | |
464 | CloseHandle (state->exit_select); | |
465 | } | |
466 | ||
467 | /* Called by gdb_select to start the select thread indicated by STATE. | |
468 | This function does not return until the thread has started. */ | |
469 | static void | |
470 | start_select_thread (struct ser_console_state *state) | |
471 | { | |
472 | /* Ask the thread to start. */ | |
473 | SetEvent (state->start_select); | |
474 | /* Wait until it does. */ | |
475 | WaitForSingleObject (state->have_started, INFINITE); | |
476 | /* The thread is now started. */ | |
477 | state->thread_state = STS_STARTED; | |
478 | } | |
479 | ||
480 | /* Called by gdb_select to stop the select thread indicated by STATE. | |
481 | This function does not return until the thread has stopped. */ | |
482 | static void | |
483 | stop_select_thread (struct ser_console_state *state) | |
484 | { | |
485 | /* If the thread is already in the stopped state, we have nothing to | |
486 | do. Some of the wait_handle functions avoid calling | |
487 | start_select_thread if they notice activity on the relevant file | |
488 | descriptors. The wait_handle_done functions still call | |
489 | stop_select_thread -- but it is already stopped. */ | |
490 | if (state->thread_state != STS_STARTED) | |
491 | return; | |
492 | /* Ask the thread to stop. */ | |
493 | SetEvent (state->stop_select); | |
494 | /* Wait until it does. */ | |
495 | WaitForSingleObject (state->have_stopped, INFINITE); | |
496 | /* The thread is now stopped. */ | |
497 | state->thread_state = STS_STOPPED; | |
498 | } | |
499 | ||
0ea3f30e DJ |
500 | static DWORD WINAPI |
501 | console_select_thread (void *arg) | |
502 | { | |
503 | struct serial *scb = arg; | |
c3e2b812 DJ |
504 | struct ser_console_state *state; |
505 | int event_index; | |
0ea3f30e DJ |
506 | HANDLE h; |
507 | ||
c3e2b812 DJ |
508 | state = scb->state; |
509 | h = (HANDLE) _get_osfhandle (scb->fd); | |
0ea3f30e DJ |
510 | |
511 | while (1) | |
512 | { | |
513 | HANDLE wait_events[2]; | |
514 | INPUT_RECORD record; | |
515 | DWORD n_records; | |
516 | ||
4577549b | 517 | select_thread_wait (state); |
c3e2b812 | 518 | |
4577549b DJ |
519 | while (1) |
520 | { | |
521 | wait_events[0] = state->stop_select; | |
522 | wait_events[1] = h; | |
0ea3f30e | 523 | |
4577549b | 524 | event_index = WaitForMultipleObjects (2, wait_events, FALSE, INFINITE); |
0ea3f30e | 525 | |
4577549b DJ |
526 | if (event_index == WAIT_OBJECT_0 |
527 | || WaitForSingleObject (state->stop_select, 0) == WAIT_OBJECT_0) | |
528 | break; | |
0ea3f30e | 529 | |
4577549b DJ |
530 | if (event_index != WAIT_OBJECT_0 + 1) |
531 | { | |
532 | /* Wait must have failed; assume an error has occured, e.g. | |
533 | the handle has been closed. */ | |
534 | SetEvent (state->except_event); | |
535 | break; | |
536 | } | |
0ea3f30e | 537 | |
4577549b DJ |
538 | /* We've got a pending event on the console. See if it's |
539 | of interest. */ | |
540 | if (!PeekConsoleInput (h, &record, 1, &n_records) || n_records != 1) | |
541 | { | |
542 | /* Something went wrong. Maybe the console is gone. */ | |
543 | SetEvent (state->except_event); | |
544 | break; | |
545 | } | |
0ea3f30e | 546 | |
4577549b | 547 | if (record.EventType == KEY_EVENT && record.Event.KeyEvent.bKeyDown) |
c3e2b812 | 548 | { |
4577549b DJ |
549 | WORD keycode = record.Event.KeyEvent.wVirtualKeyCode; |
550 | ||
551 | /* Ignore events containing only control keys. We must | |
552 | recognize "enhanced" keys which we are interested in | |
553 | reading via getch, if they do not map to ASCII. But we | |
554 | do not want to report input available for e.g. the | |
555 | control key alone. */ | |
556 | ||
557 | if (record.Event.KeyEvent.uChar.AsciiChar != 0 | |
558 | || keycode == VK_PRIOR | |
559 | || keycode == VK_NEXT | |
560 | || keycode == VK_END | |
561 | || keycode == VK_HOME | |
562 | || keycode == VK_LEFT | |
563 | || keycode == VK_UP | |
564 | || keycode == VK_RIGHT | |
565 | || keycode == VK_DOWN | |
566 | || keycode == VK_INSERT | |
567 | || keycode == VK_DELETE) | |
568 | { | |
569 | /* This is really a keypress. */ | |
570 | SetEvent (state->read_event); | |
571 | break; | |
572 | } | |
c3e2b812 | 573 | } |
4577549b DJ |
574 | |
575 | /* Otherwise discard it and wait again. */ | |
576 | ReadConsoleInput (h, &record, 1, &n_records); | |
0ea3f30e DJ |
577 | } |
578 | ||
4577549b | 579 | SetEvent(state->have_stopped); |
0ea3f30e DJ |
580 | } |
581 | } | |
582 | ||
583 | static int | |
584 | fd_is_pipe (int fd) | |
585 | { | |
586 | if (PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, NULL, NULL)) | |
587 | return 1; | |
588 | else | |
589 | return 0; | |
590 | } | |
591 | ||
7e71daaa JG |
592 | static int |
593 | fd_is_file (int fd) | |
594 | { | |
595 | if (GetFileType ((HANDLE) _get_osfhandle (fd)) == FILE_TYPE_DISK) | |
596 | return 1; | |
597 | else | |
598 | return 0; | |
599 | } | |
600 | ||
0ea3f30e DJ |
601 | static DWORD WINAPI |
602 | pipe_select_thread (void *arg) | |
603 | { | |
604 | struct serial *scb = arg; | |
c3e2b812 DJ |
605 | struct ser_console_state *state; |
606 | int event_index; | |
0ea3f30e DJ |
607 | HANDLE h; |
608 | ||
c3e2b812 DJ |
609 | state = scb->state; |
610 | h = (HANDLE) _get_osfhandle (scb->fd); | |
0ea3f30e DJ |
611 | |
612 | while (1) | |
613 | { | |
0ea3f30e DJ |
614 | DWORD n_avail; |
615 | ||
4577549b | 616 | select_thread_wait (state); |
c3e2b812 | 617 | |
4577549b DJ |
618 | /* Wait for something to happen on the pipe. */ |
619 | while (1) | |
0ea3f30e | 620 | { |
4577549b DJ |
621 | if (!PeekNamedPipe (h, NULL, 0, NULL, &n_avail, NULL)) |
622 | { | |
623 | SetEvent (state->except_event); | |
624 | break; | |
625 | } | |
0ea3f30e | 626 | |
4577549b DJ |
627 | if (n_avail > 0) |
628 | { | |
629 | SetEvent (state->read_event); | |
630 | break; | |
631 | } | |
0ea3f30e | 632 | |
4577549b DJ |
633 | /* Delay 10ms before checking again, but allow the stop |
634 | event to wake us. */ | |
635 | if (WaitForSingleObject (state->stop_select, 10) == WAIT_OBJECT_0) | |
636 | break; | |
637 | } | |
0ea3f30e | 638 | |
4577549b | 639 | SetEvent (state->have_stopped); |
0ea3f30e DJ |
640 | } |
641 | } | |
642 | ||
7e71daaa JG |
643 | static DWORD WINAPI |
644 | file_select_thread (void *arg) | |
645 | { | |
646 | struct serial *scb = arg; | |
647 | struct ser_console_state *state; | |
648 | int event_index; | |
649 | HANDLE h; | |
650 | ||
651 | state = scb->state; | |
652 | h = (HANDLE) _get_osfhandle (scb->fd); | |
653 | ||
654 | while (1) | |
655 | { | |
4577549b | 656 | select_thread_wait (state); |
7e71daaa JG |
657 | |
658 | if (SetFilePointer (h, 0, NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER) | |
4577549b DJ |
659 | SetEvent (state->except_event); |
660 | else | |
661 | SetEvent (state->read_event); | |
7e71daaa | 662 | |
4577549b | 663 | SetEvent (state->have_stopped); |
7e71daaa JG |
664 | } |
665 | } | |
666 | ||
0ea3f30e DJ |
667 | static void |
668 | ser_console_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
669 | { | |
670 | struct ser_console_state *state = scb->state; | |
671 | ||
672 | if (state == NULL) | |
673 | { | |
4577549b | 674 | thread_fn_type thread_fn; |
0ea3f30e DJ |
675 | int is_tty; |
676 | ||
677 | is_tty = isatty (scb->fd); | |
7e71daaa | 678 | if (!is_tty && !fd_is_file (scb->fd) && !fd_is_pipe (scb->fd)) |
0ea3f30e DJ |
679 | { |
680 | *read = NULL; | |
681 | *except = NULL; | |
682 | return; | |
683 | } | |
684 | ||
685 | state = xmalloc (sizeof (struct ser_console_state)); | |
686 | memset (state, 0, sizeof (struct ser_console_state)); | |
687 | scb->state = state; | |
688 | ||
0ea3f30e | 689 | if (is_tty) |
4577549b | 690 | thread_fn = console_select_thread; |
7e71daaa | 691 | else if (fd_is_pipe (scb->fd)) |
4577549b | 692 | thread_fn = pipe_select_thread; |
7e71daaa | 693 | else |
4577549b DJ |
694 | thread_fn = file_select_thread; |
695 | ||
696 | create_select_thread (thread_fn, scb, state); | |
0ea3f30e DJ |
697 | } |
698 | ||
c3e2b812 DJ |
699 | *read = state->read_event; |
700 | *except = state->except_event; | |
701 | ||
702 | /* Start from a blank state. */ | |
0ea3f30e DJ |
703 | ResetEvent (state->read_event); |
704 | ResetEvent (state->except_event); | |
c3e2b812 DJ |
705 | ResetEvent (state->stop_select); |
706 | ||
707 | /* First check for a key already in the buffer. If there is one, | |
708 | we don't need a thread. This also catches the second key of | |
709 | multi-character returns from getch, for instance for arrow | |
710 | keys. The second half is in a C library internal buffer, | |
711 | and PeekConsoleInput will not find it. */ | |
712 | if (_kbhit ()) | |
713 | { | |
714 | SetEvent (state->read_event); | |
715 | return; | |
716 | } | |
0ea3f30e | 717 | |
c3e2b812 | 718 | /* Otherwise, start the select thread. */ |
4577549b | 719 | start_select_thread (state); |
c3e2b812 | 720 | } |
0ea3f30e | 721 | |
c3e2b812 DJ |
722 | static void |
723 | ser_console_done_wait_handle (struct serial *scb) | |
724 | { | |
725 | struct ser_console_state *state = scb->state; | |
726 | ||
727 | if (state == NULL) | |
728 | return; | |
729 | ||
4577549b | 730 | stop_select_thread (state); |
0ea3f30e DJ |
731 | } |
732 | ||
733 | static void | |
734 | ser_console_close (struct serial *scb) | |
735 | { | |
736 | struct ser_console_state *state = scb->state; | |
737 | ||
738 | if (scb->state) | |
739 | { | |
4577549b | 740 | destroy_select_thread (state); |
0ea3f30e DJ |
741 | xfree (scb->state); |
742 | } | |
743 | } | |
744 | ||
745 | struct ser_console_ttystate | |
746 | { | |
747 | int is_a_tty; | |
748 | }; | |
749 | ||
750 | static serial_ttystate | |
751 | ser_console_get_tty_state (struct serial *scb) | |
752 | { | |
753 | if (isatty (scb->fd)) | |
754 | { | |
755 | struct ser_console_ttystate *state; | |
756 | state = (struct ser_console_ttystate *) xmalloc (sizeof *state); | |
757 | state->is_a_tty = 1; | |
758 | return state; | |
759 | } | |
760 | else | |
761 | return NULL; | |
762 | } | |
763 | ||
5f1fb6dc JB |
764 | struct pipe_state |
765 | { | |
766 | /* Since we use the pipe_select_thread for our select emulation, | |
767 | we need to place the state structure it requires at the front | |
768 | of our state. */ | |
769 | struct ser_console_state wait; | |
770 | ||
771 | /* The pex obj for our (one-stage) pipeline. */ | |
772 | struct pex_obj *pex; | |
773 | ||
774 | /* Streams for the pipeline's input and output. */ | |
775 | FILE *input, *output; | |
776 | }; | |
777 | ||
778 | static struct pipe_state * | |
779 | make_pipe_state (void) | |
780 | { | |
781 | struct pipe_state *ps = XMALLOC (struct pipe_state); | |
782 | ||
783 | memset (ps, 0, sizeof (*ps)); | |
784 | ps->wait.read_event = INVALID_HANDLE_VALUE; | |
785 | ps->wait.except_event = INVALID_HANDLE_VALUE; | |
786 | ps->wait.start_select = INVALID_HANDLE_VALUE; | |
787 | ps->wait.stop_select = INVALID_HANDLE_VALUE; | |
788 | ||
789 | return ps; | |
790 | } | |
791 | ||
792 | static void | |
793 | free_pipe_state (struct pipe_state *ps) | |
794 | { | |
795 | int saved_errno = errno; | |
796 | ||
797 | if (ps->wait.read_event != INVALID_HANDLE_VALUE) | |
4577549b | 798 | destroy_select_thread (&ps->wait); |
5f1fb6dc JB |
799 | |
800 | /* Close the pipe to the child. We must close the pipe before | |
801 | calling pex_free because pex_free will wait for the child to exit | |
802 | and the child will not exit until the pipe is closed. */ | |
803 | if (ps->input) | |
804 | fclose (ps->input); | |
805 | if (ps->pex) | |
806 | pex_free (ps->pex); | |
807 | /* pex_free closes ps->output. */ | |
808 | ||
809 | xfree (ps); | |
810 | ||
811 | errno = saved_errno; | |
812 | } | |
813 | ||
814 | static void | |
815 | cleanup_pipe_state (void *untyped) | |
816 | { | |
817 | struct pipe_state *ps = untyped; | |
818 | ||
819 | free_pipe_state (ps); | |
820 | } | |
821 | ||
822 | static int | |
823 | pipe_windows_open (struct serial *scb, const char *name) | |
824 | { | |
ef7723eb | 825 | struct pipe_state *ps; |
65cc4390 | 826 | FILE *pex_stderr; |
ef7723eb | 827 | |
5f1fb6dc JB |
828 | char **argv = buildargv (name); |
829 | struct cleanup *back_to = make_cleanup_freeargv (argv); | |
830 | if (! argv[0] || argv[0][0] == '\0') | |
831 | error ("missing child command"); | |
832 | ||
ef7723eb VP |
833 | |
834 | ps = make_pipe_state (); | |
5f1fb6dc JB |
835 | make_cleanup (cleanup_pipe_state, ps); |
836 | ||
837 | ps->pex = pex_init (PEX_USE_PIPES, "target remote pipe", NULL); | |
838 | if (! ps->pex) | |
839 | goto fail; | |
840 | ps->input = pex_input_pipe (ps->pex, 1); | |
841 | if (! ps->input) | |
842 | goto fail; | |
843 | ||
844 | { | |
845 | int err; | |
846 | const char *err_msg | |
65cc4390 VP |
847 | = pex_run (ps->pex, PEX_SEARCH | PEX_BINARY_INPUT | PEX_BINARY_OUTPUT |
848 | | PEX_STDERR_TO_PIPE, | |
5f1fb6dc JB |
849 | argv[0], argv, NULL, NULL, |
850 | &err); | |
851 | ||
852 | if (err_msg) | |
853 | { | |
854 | /* Our caller expects us to return -1, but all they'll do with | |
855 | it generally is print the message based on errno. We have | |
856 | all the same information here, plus err_msg provided by | |
857 | pex_run, so we just raise the error here. */ | |
858 | if (err) | |
859 | error ("error starting child process '%s': %s: %s", | |
860 | name, err_msg, safe_strerror (err)); | |
861 | else | |
862 | error ("error starting child process '%s': %s", | |
863 | name, err_msg); | |
864 | } | |
865 | } | |
866 | ||
867 | ps->output = pex_read_output (ps->pex, 1); | |
868 | if (! ps->output) | |
869 | goto fail; | |
5f1fb6dc | 870 | scb->fd = fileno (ps->output); |
65cc4390 VP |
871 | |
872 | pex_stderr = pex_read_err (ps->pex, 1); | |
873 | if (! pex_stderr) | |
874 | goto fail; | |
875 | scb->error_fd = fileno (pex_stderr); | |
876 | ||
5f1fb6dc JB |
877 | scb->state = (void *) ps; |
878 | ||
879 | discard_cleanups (back_to); | |
880 | return 0; | |
881 | ||
882 | fail: | |
883 | do_cleanups (back_to); | |
884 | return -1; | |
885 | } | |
886 | ||
887 | ||
888 | static void | |
889 | pipe_windows_close (struct serial *scb) | |
890 | { | |
891 | struct pipe_state *ps = scb->state; | |
892 | ||
893 | /* In theory, we should try to kill the subprocess here, but the pex | |
894 | interface doesn't give us enough information to do that. Usually | |
895 | closing the input pipe will get the message across. */ | |
896 | ||
897 | free_pipe_state (ps); | |
898 | } | |
899 | ||
900 | ||
901 | static int | |
902 | pipe_windows_read (struct serial *scb, size_t count) | |
903 | { | |
4998c1df | 904 | HANDLE pipeline_out = (HANDLE) _get_osfhandle (scb->fd); |
ef7723eb VP |
905 | DWORD available; |
906 | DWORD bytes_read; | |
907 | ||
5f1fb6dc JB |
908 | if (pipeline_out == INVALID_HANDLE_VALUE) |
909 | return -1; | |
910 | ||
5f1fb6dc JB |
911 | if (! PeekNamedPipe (pipeline_out, NULL, 0, NULL, &available, NULL)) |
912 | return -1; | |
913 | ||
914 | if (count > available) | |
915 | count = available; | |
916 | ||
5f1fb6dc JB |
917 | if (! ReadFile (pipeline_out, scb->buf, count, &bytes_read, NULL)) |
918 | return -1; | |
919 | ||
920 | return bytes_read; | |
921 | } | |
922 | ||
923 | ||
924 | static int | |
925 | pipe_windows_write (struct serial *scb, const void *buf, size_t count) | |
926 | { | |
927 | struct pipe_state *ps = scb->state; | |
ef7723eb VP |
928 | HANDLE pipeline_in; |
929 | DWORD written; | |
930 | ||
5f1fb6dc JB |
931 | int pipeline_in_fd = fileno (ps->input); |
932 | if (pipeline_in_fd < 0) | |
933 | return -1; | |
934 | ||
ef7723eb | 935 | pipeline_in = (HANDLE) _get_osfhandle (pipeline_in_fd); |
5f1fb6dc JB |
936 | if (pipeline_in == INVALID_HANDLE_VALUE) |
937 | return -1; | |
938 | ||
5f1fb6dc JB |
939 | if (! WriteFile (pipeline_in, buf, count, &written, NULL)) |
940 | return -1; | |
941 | ||
942 | return written; | |
943 | } | |
944 | ||
945 | ||
946 | static void | |
947 | pipe_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
948 | { | |
949 | struct pipe_state *ps = scb->state; | |
950 | ||
951 | /* Have we allocated our events yet? */ | |
952 | if (ps->wait.read_event == INVALID_HANDLE_VALUE) | |
4577549b DJ |
953 | /* Start the thread. */ |
954 | create_select_thread (pipe_select_thread, scb, &ps->wait); | |
5f1fb6dc | 955 | |
774a49c0 DJ |
956 | *read = ps->wait.read_event; |
957 | *except = ps->wait.except_event; | |
958 | ||
959 | /* Start from a blank state. */ | |
5f1fb6dc JB |
960 | ResetEvent (ps->wait.read_event); |
961 | ResetEvent (ps->wait.except_event); | |
774a49c0 | 962 | ResetEvent (ps->wait.stop_select); |
5f1fb6dc | 963 | |
4577549b | 964 | start_select_thread (&ps->wait); |
5f1fb6dc JB |
965 | } |
966 | ||
774a49c0 DJ |
967 | static void |
968 | pipe_done_wait_handle (struct serial *scb) | |
969 | { | |
970 | struct pipe_state *ps = scb->state; | |
971 | ||
972 | /* Have we allocated our events yet? */ | |
973 | if (ps->wait.read_event == INVALID_HANDLE_VALUE) | |
974 | return; | |
975 | ||
4577549b | 976 | stop_select_thread (&ps->wait); |
774a49c0 | 977 | } |
5f1fb6dc | 978 | |
65cc4390 VP |
979 | static int |
980 | pipe_avail (struct serial *scb, int fd) | |
981 | { | |
982 | HANDLE h = (HANDLE) _get_osfhandle (fd); | |
983 | DWORD numBytes; | |
984 | BOOL r = PeekNamedPipe (h, NULL, 0, NULL, &numBytes, NULL); | |
985 | if (r == FALSE) | |
986 | numBytes = 0; | |
987 | return numBytes; | |
988 | } | |
989 | ||
0ea3f30e DJ |
990 | struct net_windows_state |
991 | { | |
4577549b DJ |
992 | struct ser_console_state base; |
993 | ||
0ea3f30e DJ |
994 | HANDLE sock_event; |
995 | }; | |
996 | ||
997 | static DWORD WINAPI | |
998 | net_windows_select_thread (void *arg) | |
999 | { | |
1000 | struct serial *scb = arg; | |
4577549b | 1001 | struct net_windows_state *state; |
c3e2b812 | 1002 | int event_index; |
0ea3f30e | 1003 | |
c3e2b812 | 1004 | state = scb->state; |
0ea3f30e DJ |
1005 | |
1006 | while (1) | |
1007 | { | |
1008 | HANDLE wait_events[2]; | |
1009 | WSANETWORKEVENTS events; | |
1010 | ||
4577549b | 1011 | select_thread_wait (&state->base); |
c3e2b812 | 1012 | |
4577549b | 1013 | wait_events[0] = state->base.stop_select; |
0ea3f30e DJ |
1014 | wait_events[1] = state->sock_event; |
1015 | ||
1016 | event_index = WaitForMultipleObjects (2, wait_events, FALSE, INFINITE); | |
1017 | ||
1018 | if (event_index == WAIT_OBJECT_0 | |
4577549b DJ |
1019 | || WaitForSingleObject (state->base.stop_select, 0) == WAIT_OBJECT_0) |
1020 | /* We have been requested to stop. */ | |
1021 | ; | |
1022 | else if (event_index != WAIT_OBJECT_0 + 1) | |
1023 | /* Some error has occured. Assume that this is an error | |
1024 | condition. */ | |
1025 | SetEvent (state->base.except_event); | |
1026 | else | |
0ea3f30e | 1027 | { |
4577549b DJ |
1028 | /* Enumerate the internal network events, and reset the |
1029 | object that signalled us to catch the next event. */ | |
1030 | WSAEnumNetworkEvents (scb->fd, state->sock_event, &events); | |
1031 | ||
1032 | gdb_assert (events.lNetworkEvents & (FD_READ | FD_CLOSE)); | |
1033 | ||
1034 | if (events.lNetworkEvents & FD_READ) | |
1035 | SetEvent (state->base.read_event); | |
1036 | ||
1037 | if (events.lNetworkEvents & FD_CLOSE) | |
1038 | SetEvent (state->base.except_event); | |
0ea3f30e DJ |
1039 | } |
1040 | ||
4577549b | 1041 | SetEvent (state->base.have_stopped); |
0ea3f30e DJ |
1042 | } |
1043 | } | |
1044 | ||
1045 | static void | |
1046 | net_windows_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
1047 | { | |
1048 | struct net_windows_state *state = scb->state; | |
1049 | ||
c3e2b812 | 1050 | /* Start from a clean slate. */ |
4577549b DJ |
1051 | ResetEvent (state->base.read_event); |
1052 | ResetEvent (state->base.except_event); | |
1053 | ResetEvent (state->base.stop_select); | |
0ea3f30e | 1054 | |
4577549b DJ |
1055 | *read = state->base.read_event; |
1056 | *except = state->base.except_event; | |
c3e2b812 DJ |
1057 | |
1058 | /* Check any pending events. This both avoids starting the thread | |
1059 | unnecessarily, and handles stray FD_READ events (see below). */ | |
1060 | if (WaitForSingleObject (state->sock_event, 0) == WAIT_OBJECT_0) | |
1061 | { | |
1062 | WSANETWORKEVENTS events; | |
1063 | int any = 0; | |
1064 | ||
1065 | /* Enumerate the internal network events, and reset the object that | |
1066 | signalled us to catch the next event. */ | |
1067 | WSAEnumNetworkEvents (scb->fd, state->sock_event, &events); | |
1068 | ||
1069 | /* You'd think that FD_READ or FD_CLOSE would be set here. But, | |
1070 | sometimes, neither is. I suspect that the FD_READ is set and | |
1071 | the corresponding event signalled while recv is running, and | |
1072 | the FD_READ is then lowered when recv consumes all the data, | |
1073 | but there's no way to un-signal the event. This isn't a | |
1074 | problem for the call in net_select_thread, since any new | |
1075 | events after this point will not have been drained by recv. | |
1076 | It just means that we can't have the obvious assert here. */ | |
1077 | ||
1078 | /* If there is a read event, it might be still valid, or it might | |
1079 | not be - it may have been signalled before we last called | |
1080 | recv. Double-check that there is data. */ | |
1081 | if (events.lNetworkEvents & FD_READ) | |
1082 | { | |
1083 | unsigned long available; | |
1084 | ||
1085 | if (ioctlsocket (scb->fd, FIONREAD, &available) == 0 | |
1086 | && available > 0) | |
1087 | { | |
4577549b | 1088 | SetEvent (state->base.read_event); |
c3e2b812 DJ |
1089 | any = 1; |
1090 | } | |
1091 | else | |
1092 | /* Oops, no data. This call to recv will cause future | |
1093 | data to retrigger the event, e.g. while we are | |
1094 | in net_select_thread. */ | |
1095 | recv (scb->fd, NULL, 0, 0); | |
1096 | } | |
1097 | ||
1098 | /* If there's a close event, then record it - it is obviously | |
1099 | still valid, and it will not be resignalled. */ | |
1100 | if (events.lNetworkEvents & FD_CLOSE) | |
1101 | { | |
4577549b | 1102 | SetEvent (state->base.except_event); |
c3e2b812 DJ |
1103 | any = 1; |
1104 | } | |
1105 | ||
1106 | /* If we set either handle, there's no need to wake the thread. */ | |
1107 | if (any) | |
1108 | return; | |
1109 | } | |
1110 | ||
4577549b | 1111 | start_select_thread (&state->base); |
c3e2b812 DJ |
1112 | } |
1113 | ||
1114 | static void | |
1115 | net_windows_done_wait_handle (struct serial *scb) | |
1116 | { | |
1117 | struct net_windows_state *state = scb->state; | |
1118 | ||
4577549b | 1119 | stop_select_thread (&state->base); |
0ea3f30e DJ |
1120 | } |
1121 | ||
1122 | static int | |
1123 | net_windows_open (struct serial *scb, const char *name) | |
1124 | { | |
1125 | struct net_windows_state *state; | |
1126 | int ret; | |
1127 | DWORD threadId; | |
1128 | ||
1129 | ret = net_open (scb, name); | |
1130 | if (ret != 0) | |
1131 | return ret; | |
1132 | ||
1133 | state = xmalloc (sizeof (struct net_windows_state)); | |
1134 | memset (state, 0, sizeof (struct net_windows_state)); | |
1135 | scb->state = state; | |
1136 | ||
0ea3f30e DJ |
1137 | /* Associate an event with the socket. */ |
1138 | state->sock_event = CreateEvent (0, TRUE, FALSE, 0); | |
1139 | WSAEventSelect (scb->fd, state->sock_event, FD_READ | FD_CLOSE); | |
1140 | ||
4577549b DJ |
1141 | /* Start the thread. */ |
1142 | create_select_thread (net_windows_select_thread, scb, &state->base); | |
0ea3f30e DJ |
1143 | |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | ||
1148 | static void | |
1149 | net_windows_close (struct serial *scb) | |
1150 | { | |
1151 | struct net_windows_state *state = scb->state; | |
1152 | ||
4577549b | 1153 | destroy_select_thread (&state->base); |
0ea3f30e DJ |
1154 | CloseHandle (state->sock_event); |
1155 | ||
1156 | xfree (scb->state); | |
1157 | ||
1158 | net_close (scb); | |
1159 | } | |
1160 | ||
1161 | void | |
1162 | _initialize_ser_windows (void) | |
1163 | { | |
1164 | WSADATA wsa_data; | |
1165 | struct serial_ops *ops; | |
1166 | ||
1167 | /* First register the serial port driver. */ | |
1168 | ||
1169 | ops = XMALLOC (struct serial_ops); | |
1170 | memset (ops, 0, sizeof (struct serial_ops)); | |
1171 | ops->name = "hardwire"; | |
1172 | ops->next = 0; | |
1173 | ops->open = ser_windows_open; | |
1174 | ops->close = ser_windows_close; | |
1175 | ||
1176 | ops->flush_output = ser_windows_flush_output; | |
1177 | ops->flush_input = ser_windows_flush_input; | |
1178 | ops->send_break = ser_windows_send_break; | |
1179 | ||
1180 | /* These are only used for stdin; we do not need them for serial | |
1181 | ports, so supply the standard dummies. */ | |
1182 | ops->get_tty_state = ser_base_get_tty_state; | |
1183 | ops->set_tty_state = ser_base_set_tty_state; | |
1184 | ops->print_tty_state = ser_base_print_tty_state; | |
1185 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; | |
1186 | ||
1187 | ops->go_raw = ser_windows_raw; | |
1188 | ops->setbaudrate = ser_windows_setbaudrate; | |
1189 | ops->setstopbits = ser_windows_setstopbits; | |
1190 | ops->drain_output = ser_windows_drain_output; | |
1191 | ops->readchar = ser_base_readchar; | |
1192 | ops->write = ser_base_write; | |
1193 | ops->async = ser_base_async; | |
1194 | ops->read_prim = ser_windows_read_prim; | |
1195 | ops->write_prim = ser_windows_write_prim; | |
1196 | ops->wait_handle = ser_windows_wait_handle; | |
1197 | ||
1198 | serial_add_interface (ops); | |
1199 | ||
1200 | /* Next create the dummy serial driver used for terminals. We only | |
1201 | provide the TTY-related methods. */ | |
1202 | ||
1203 | ops = XMALLOC (struct serial_ops); | |
1204 | memset (ops, 0, sizeof (struct serial_ops)); | |
1205 | ||
1206 | ops->name = "terminal"; | |
1207 | ops->next = 0; | |
1208 | ||
1209 | ops->close = ser_console_close; | |
1210 | ops->get_tty_state = ser_console_get_tty_state; | |
1211 | ops->set_tty_state = ser_base_set_tty_state; | |
1212 | ops->print_tty_state = ser_base_print_tty_state; | |
1213 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; | |
1214 | ops->drain_output = ser_base_drain_output; | |
1215 | ops->wait_handle = ser_console_wait_handle; | |
c3e2b812 | 1216 | ops->done_wait_handle = ser_console_done_wait_handle; |
0ea3f30e DJ |
1217 | |
1218 | serial_add_interface (ops); | |
1219 | ||
5f1fb6dc JB |
1220 | /* The pipe interface. */ |
1221 | ||
1222 | ops = XMALLOC (struct serial_ops); | |
1223 | memset (ops, 0, sizeof (struct serial_ops)); | |
1224 | ops->name = "pipe"; | |
1225 | ops->next = 0; | |
1226 | ops->open = pipe_windows_open; | |
1227 | ops->close = pipe_windows_close; | |
1228 | ops->readchar = ser_base_readchar; | |
1229 | ops->write = ser_base_write; | |
1230 | ops->flush_output = ser_base_flush_output; | |
1231 | ops->flush_input = ser_base_flush_input; | |
1232 | ops->send_break = ser_base_send_break; | |
1233 | ops->go_raw = ser_base_raw; | |
1234 | ops->get_tty_state = ser_base_get_tty_state; | |
1235 | ops->set_tty_state = ser_base_set_tty_state; | |
1236 | ops->print_tty_state = ser_base_print_tty_state; | |
1237 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; | |
1238 | ops->setbaudrate = ser_base_setbaudrate; | |
1239 | ops->setstopbits = ser_base_setstopbits; | |
1240 | ops->drain_output = ser_base_drain_output; | |
1241 | ops->async = ser_base_async; | |
1242 | ops->read_prim = pipe_windows_read; | |
1243 | ops->write_prim = pipe_windows_write; | |
1244 | ops->wait_handle = pipe_wait_handle; | |
774a49c0 | 1245 | ops->done_wait_handle = pipe_done_wait_handle; |
65cc4390 | 1246 | ops->avail = pipe_avail; |
5f1fb6dc JB |
1247 | |
1248 | serial_add_interface (ops); | |
1249 | ||
0ea3f30e DJ |
1250 | /* If WinSock works, register the TCP/UDP socket driver. */ |
1251 | ||
1252 | if (WSAStartup (MAKEWORD (1, 0), &wsa_data) != 0) | |
1253 | /* WinSock is unavailable. */ | |
1254 | return; | |
1255 | ||
1256 | ops = XMALLOC (struct serial_ops); | |
1257 | memset (ops, 0, sizeof (struct serial_ops)); | |
1258 | ops->name = "tcp"; | |
1259 | ops->next = 0; | |
1260 | ops->open = net_windows_open; | |
1261 | ops->close = net_windows_close; | |
1262 | ops->readchar = ser_base_readchar; | |
1263 | ops->write = ser_base_write; | |
1264 | ops->flush_output = ser_base_flush_output; | |
1265 | ops->flush_input = ser_base_flush_input; | |
1266 | ops->send_break = ser_base_send_break; | |
1267 | ops->go_raw = ser_base_raw; | |
1268 | ops->get_tty_state = ser_base_get_tty_state; | |
1269 | ops->set_tty_state = ser_base_set_tty_state; | |
1270 | ops->print_tty_state = ser_base_print_tty_state; | |
1271 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; | |
1272 | ops->setbaudrate = ser_base_setbaudrate; | |
1273 | ops->setstopbits = ser_base_setstopbits; | |
1274 | ops->drain_output = ser_base_drain_output; | |
1275 | ops->async = ser_base_async; | |
1276 | ops->read_prim = net_read_prim; | |
1277 | ops->write_prim = net_write_prim; | |
1278 | ops->wait_handle = net_windows_wait_handle; | |
c3e2b812 | 1279 | ops->done_wait_handle = net_windows_done_wait_handle; |
0ea3f30e DJ |
1280 | serial_add_interface (ops); |
1281 | } |