| 1 | /* Serial interface for local (hardwired) serial ports on Windows systems |
| 2 | |
| 3 | Copyright (C) 2006, 2007 Free Software Foundation, Inc. |
| 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 |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 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 |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 | Boston, MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "serial.h" |
| 24 | #include "ser-base.h" |
| 25 | #include "ser-tcp.h" |
| 26 | |
| 27 | #include <windows.h> |
| 28 | #include <conio.h> |
| 29 | |
| 30 | #include <fcntl.h> |
| 31 | #include <unistd.h> |
| 32 | #include <sys/types.h> |
| 33 | |
| 34 | #include "gdb_assert.h" |
| 35 | #include "gdb_string.h" |
| 36 | |
| 37 | void _initialize_ser_windows (void); |
| 38 | |
| 39 | struct ser_windows_state |
| 40 | { |
| 41 | int in_progress; |
| 42 | OVERLAPPED ov; |
| 43 | DWORD lastCommMask; |
| 44 | HANDLE except_event; |
| 45 | }; |
| 46 | |
| 47 | /* Open up a real live device for serial I/O. */ |
| 48 | |
| 49 | static int |
| 50 | ser_windows_open (struct serial *scb, const char *name) |
| 51 | { |
| 52 | HANDLE h; |
| 53 | struct ser_windows_state *state; |
| 54 | COMMTIMEOUTS timeouts; |
| 55 | |
| 56 | /* Only allow COM ports. */ |
| 57 | if (strncmp (name, "COM", 3) != 0) |
| 58 | { |
| 59 | errno = ENOENT; |
| 60 | return -1; |
| 61 | } |
| 62 | |
| 63 | h = CreateFile (name, GENERIC_READ | GENERIC_WRITE, 0, NULL, |
| 64 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); |
| 65 | if (h == INVALID_HANDLE_VALUE) |
| 66 | { |
| 67 | errno = ENOENT; |
| 68 | return -1; |
| 69 | } |
| 70 | |
| 71 | scb->fd = _open_osfhandle ((long) h, O_RDWR); |
| 72 | if (scb->fd < 0) |
| 73 | { |
| 74 | errno = ENOENT; |
| 75 | return -1; |
| 76 | } |
| 77 | |
| 78 | if (!SetCommMask (h, EV_RXCHAR)) |
| 79 | { |
| 80 | errno = EINVAL; |
| 81 | return -1; |
| 82 | } |
| 83 | |
| 84 | timeouts.ReadIntervalTimeout = MAXDWORD; |
| 85 | timeouts.ReadTotalTimeoutConstant = 0; |
| 86 | timeouts.ReadTotalTimeoutMultiplier = 0; |
| 87 | timeouts.WriteTotalTimeoutConstant = 0; |
| 88 | timeouts.WriteTotalTimeoutMultiplier = 0; |
| 89 | if (!SetCommTimeouts (h, &timeouts)) |
| 90 | { |
| 91 | errno = EINVAL; |
| 92 | return -1; |
| 93 | } |
| 94 | |
| 95 | state = xmalloc (sizeof (struct ser_windows_state)); |
| 96 | memset (state, 0, sizeof (struct ser_windows_state)); |
| 97 | scb->state = state; |
| 98 | |
| 99 | /* Create a manual reset event to watch the input buffer. */ |
| 100 | state->ov.hEvent = CreateEvent (0, TRUE, FALSE, 0); |
| 101 | |
| 102 | /* Create a (currently unused) handle to record exceptions. */ |
| 103 | state->except_event = CreateEvent (0, TRUE, FALSE, 0); |
| 104 | |
| 105 | return 0; |
| 106 | } |
| 107 | |
| 108 | /* Wait for the output to drain away, as opposed to flushing (discarding) |
| 109 | it. */ |
| 110 | |
| 111 | static int |
| 112 | ser_windows_drain_output (struct serial *scb) |
| 113 | { |
| 114 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 115 | |
| 116 | return (FlushFileBuffers (h) != 0) ? 0 : -1; |
| 117 | } |
| 118 | |
| 119 | static int |
| 120 | ser_windows_flush_output (struct serial *scb) |
| 121 | { |
| 122 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 123 | |
| 124 | return (PurgeComm (h, PURGE_TXCLEAR) != 0) ? 0 : -1; |
| 125 | } |
| 126 | |
| 127 | static int |
| 128 | ser_windows_flush_input (struct serial *scb) |
| 129 | { |
| 130 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 131 | |
| 132 | return (PurgeComm (h, PURGE_RXCLEAR) != 0) ? 0 : -1; |
| 133 | } |
| 134 | |
| 135 | static int |
| 136 | ser_windows_send_break (struct serial *scb) |
| 137 | { |
| 138 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 139 | |
| 140 | if (SetCommBreak (h) == 0) |
| 141 | return -1; |
| 142 | |
| 143 | /* Delay for 250 milliseconds. */ |
| 144 | Sleep (250); |
| 145 | |
| 146 | if (ClearCommBreak (h)) |
| 147 | return -1; |
| 148 | |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | static void |
| 153 | ser_windows_raw (struct serial *scb) |
| 154 | { |
| 155 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 156 | DCB state; |
| 157 | |
| 158 | if (GetCommState (h, &state) == 0) |
| 159 | return; |
| 160 | |
| 161 | state.fParity = FALSE; |
| 162 | state.fOutxCtsFlow = FALSE; |
| 163 | state.fOutxDsrFlow = FALSE; |
| 164 | state.fDtrControl = DTR_CONTROL_ENABLE; |
| 165 | state.fDsrSensitivity = FALSE; |
| 166 | state.fOutX = FALSE; |
| 167 | state.fInX = FALSE; |
| 168 | state.fNull = FALSE; |
| 169 | state.fAbortOnError = FALSE; |
| 170 | state.ByteSize = 8; |
| 171 | state.Parity = NOPARITY; |
| 172 | |
| 173 | scb->current_timeout = 0; |
| 174 | |
| 175 | if (SetCommState (h, &state) == 0) |
| 176 | warning (_("SetCommState failed\n")); |
| 177 | } |
| 178 | |
| 179 | static int |
| 180 | ser_windows_setstopbits (struct serial *scb, int num) |
| 181 | { |
| 182 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 183 | DCB state; |
| 184 | |
| 185 | if (GetCommState (h, &state) == 0) |
| 186 | return -1; |
| 187 | |
| 188 | switch (num) |
| 189 | { |
| 190 | case SERIAL_1_STOPBITS: |
| 191 | state.StopBits = ONESTOPBIT; |
| 192 | break; |
| 193 | case SERIAL_1_AND_A_HALF_STOPBITS: |
| 194 | state.StopBits = ONE5STOPBITS; |
| 195 | break; |
| 196 | case SERIAL_2_STOPBITS: |
| 197 | state.StopBits = TWOSTOPBITS; |
| 198 | break; |
| 199 | default: |
| 200 | return 1; |
| 201 | } |
| 202 | |
| 203 | return (SetCommState (h, &state) != 0) ? 0 : -1; |
| 204 | } |
| 205 | |
| 206 | static int |
| 207 | ser_windows_setbaudrate (struct serial *scb, int rate) |
| 208 | { |
| 209 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 210 | DCB state; |
| 211 | |
| 212 | if (GetCommState (h, &state) == 0) |
| 213 | return -1; |
| 214 | |
| 215 | state.BaudRate = rate; |
| 216 | |
| 217 | return (SetCommState (h, &state) != 0) ? 0 : -1; |
| 218 | } |
| 219 | |
| 220 | static void |
| 221 | ser_windows_close (struct serial *scb) |
| 222 | { |
| 223 | struct ser_windows_state *state; |
| 224 | |
| 225 | /* Stop any pending selects. */ |
| 226 | CancelIo ((HANDLE) _get_osfhandle (scb->fd)); |
| 227 | state = scb->state; |
| 228 | CloseHandle (state->ov.hEvent); |
| 229 | CloseHandle (state->except_event); |
| 230 | |
| 231 | if (scb->fd < 0) |
| 232 | return; |
| 233 | |
| 234 | close (scb->fd); |
| 235 | scb->fd = -1; |
| 236 | |
| 237 | xfree (scb->state); |
| 238 | } |
| 239 | |
| 240 | static void |
| 241 | ser_windows_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) |
| 242 | { |
| 243 | struct ser_windows_state *state; |
| 244 | COMSTAT status; |
| 245 | DWORD errors; |
| 246 | HANDLE h = (HANDLE) _get_osfhandle (scb->fd); |
| 247 | |
| 248 | state = scb->state; |
| 249 | |
| 250 | *except = state->except_event; |
| 251 | *read = state->ov.hEvent; |
| 252 | |
| 253 | if (state->in_progress) |
| 254 | return; |
| 255 | |
| 256 | /* Reset the mask - we are only interested in any characters which |
| 257 | arrive after this point, not characters which might have arrived |
| 258 | and already been read. */ |
| 259 | |
| 260 | /* This really, really shouldn't be necessary - just the second one. |
| 261 | But otherwise an internal flag for EV_RXCHAR does not get |
| 262 | cleared, and we get a duplicated event, if the last batch |
| 263 | of characters included at least two arriving close together. */ |
| 264 | if (!SetCommMask (h, 0)) |
| 265 | warning (_("ser_windows_wait_handle: reseting mask failed")); |
| 266 | |
| 267 | if (!SetCommMask (h, EV_RXCHAR)) |
| 268 | warning (_("ser_windows_wait_handle: reseting mask failed (2)")); |
| 269 | |
| 270 | /* There's a potential race condition here; we must check cbInQue |
| 271 | and not wait if that's nonzero. */ |
| 272 | |
| 273 | ClearCommError (h, &errors, &status); |
| 274 | if (status.cbInQue > 0) |
| 275 | { |
| 276 | SetEvent (state->ov.hEvent); |
| 277 | return; |
| 278 | } |
| 279 | |
| 280 | state->in_progress = 1; |
| 281 | ResetEvent (state->ov.hEvent); |
| 282 | state->lastCommMask = -2; |
| 283 | if (WaitCommEvent (h, &state->lastCommMask, &state->ov)) |
| 284 | { |
| 285 | gdb_assert (state->lastCommMask & EV_RXCHAR); |
| 286 | SetEvent (state->ov.hEvent); |
| 287 | } |
| 288 | else |
| 289 | gdb_assert (GetLastError () == ERROR_IO_PENDING); |
| 290 | } |
| 291 | |
| 292 | static int |
| 293 | ser_windows_read_prim (struct serial *scb, size_t count) |
| 294 | { |
| 295 | struct ser_windows_state *state; |
| 296 | OVERLAPPED ov; |
| 297 | DWORD bytes_read, bytes_read_tmp; |
| 298 | HANDLE h; |
| 299 | gdb_byte *p; |
| 300 | |
| 301 | state = scb->state; |
| 302 | if (state->in_progress) |
| 303 | { |
| 304 | WaitForSingleObject (state->ov.hEvent, INFINITE); |
| 305 | state->in_progress = 0; |
| 306 | ResetEvent (state->ov.hEvent); |
| 307 | } |
| 308 | |
| 309 | memset (&ov, 0, sizeof (OVERLAPPED)); |
| 310 | ov.hEvent = CreateEvent (0, FALSE, FALSE, 0); |
| 311 | h = (HANDLE) _get_osfhandle (scb->fd); |
| 312 | |
| 313 | if (!ReadFile (h, scb->buf, /* count */ 1, &bytes_read, &ov)) |
| 314 | { |
| 315 | if (GetLastError () != ERROR_IO_PENDING |
| 316 | || !GetOverlappedResult (h, &ov, &bytes_read, TRUE)) |
| 317 | bytes_read = -1; |
| 318 | } |
| 319 | |
| 320 | CloseHandle (ov.hEvent); |
| 321 | return bytes_read; |
| 322 | } |
| 323 | |
| 324 | static int |
| 325 | ser_windows_write_prim (struct serial *scb, const void *buf, size_t len) |
| 326 | { |
| 327 | struct ser_windows_state *state; |
| 328 | OVERLAPPED ov; |
| 329 | DWORD bytes_written; |
| 330 | HANDLE h; |
| 331 | |
| 332 | memset (&ov, 0, sizeof (OVERLAPPED)); |
| 333 | ov.hEvent = CreateEvent (0, FALSE, FALSE, 0); |
| 334 | h = (HANDLE) _get_osfhandle (scb->fd); |
| 335 | if (!WriteFile (h, buf, len, &bytes_written, &ov)) |
| 336 | { |
| 337 | if (GetLastError () != ERROR_IO_PENDING |
| 338 | || !GetOverlappedResult (h, &ov, &bytes_written, TRUE)) |
| 339 | bytes_written = -1; |
| 340 | } |
| 341 | |
| 342 | CloseHandle (ov.hEvent); |
| 343 | return bytes_written; |
| 344 | } |
| 345 | |
| 346 | struct ser_console_state |
| 347 | { |
| 348 | HANDLE read_event; |
| 349 | HANDLE except_event; |
| 350 | |
| 351 | HANDLE start_select; |
| 352 | HANDLE stop_select; |
| 353 | HANDLE exit_select; |
| 354 | HANDLE have_stopped; |
| 355 | |
| 356 | HANDLE thread; |
| 357 | }; |
| 358 | |
| 359 | static DWORD WINAPI |
| 360 | console_select_thread (void *arg) |
| 361 | { |
| 362 | struct serial *scb = arg; |
| 363 | struct ser_console_state *state; |
| 364 | int event_index; |
| 365 | HANDLE h; |
| 366 | |
| 367 | state = scb->state; |
| 368 | h = (HANDLE) _get_osfhandle (scb->fd); |
| 369 | |
| 370 | while (1) |
| 371 | { |
| 372 | HANDLE wait_events[2]; |
| 373 | INPUT_RECORD record; |
| 374 | DWORD n_records; |
| 375 | |
| 376 | SetEvent (state->have_stopped); |
| 377 | |
| 378 | wait_events[0] = state->start_select; |
| 379 | wait_events[1] = state->exit_select; |
| 380 | |
| 381 | if (WaitForMultipleObjects (2, wait_events, FALSE, INFINITE) != WAIT_OBJECT_0) |
| 382 | return 0; |
| 383 | |
| 384 | ResetEvent (state->have_stopped); |
| 385 | |
| 386 | retry: |
| 387 | wait_events[0] = state->stop_select; |
| 388 | wait_events[1] = h; |
| 389 | |
| 390 | event_index = WaitForMultipleObjects (2, wait_events, FALSE, INFINITE); |
| 391 | |
| 392 | if (event_index == WAIT_OBJECT_0 |
| 393 | || WaitForSingleObject (state->stop_select, 0) == WAIT_OBJECT_0) |
| 394 | continue; |
| 395 | |
| 396 | if (event_index != WAIT_OBJECT_0 + 1) |
| 397 | { |
| 398 | /* Wait must have failed; assume an error has occured, e.g. |
| 399 | the handle has been closed. */ |
| 400 | SetEvent (state->except_event); |
| 401 | continue; |
| 402 | } |
| 403 | |
| 404 | /* We've got a pending event on the console. See if it's |
| 405 | of interest. */ |
| 406 | if (!PeekConsoleInput (h, &record, 1, &n_records) || n_records != 1) |
| 407 | { |
| 408 | /* Something went wrong. Maybe the console is gone. */ |
| 409 | SetEvent (state->except_event); |
| 410 | continue; |
| 411 | } |
| 412 | |
| 413 | if (record.EventType == KEY_EVENT && record.Event.KeyEvent.bKeyDown) |
| 414 | { |
| 415 | WORD keycode = record.Event.KeyEvent.wVirtualKeyCode; |
| 416 | |
| 417 | /* Ignore events containing only control keys. We must |
| 418 | recognize "enhanced" keys which we are interested in |
| 419 | reading via getch, if they do not map to ASCII. But we |
| 420 | do not want to report input available for e.g. the |
| 421 | control key alone. */ |
| 422 | |
| 423 | if (record.Event.KeyEvent.uChar.AsciiChar != 0 |
| 424 | || keycode == VK_PRIOR |
| 425 | || keycode == VK_NEXT |
| 426 | || keycode == VK_END |
| 427 | || keycode == VK_HOME |
| 428 | || keycode == VK_LEFT |
| 429 | || keycode == VK_UP |
| 430 | || keycode == VK_RIGHT |
| 431 | || keycode == VK_DOWN |
| 432 | || keycode == VK_INSERT |
| 433 | || keycode == VK_DELETE) |
| 434 | { |
| 435 | /* This is really a keypress. */ |
| 436 | SetEvent (state->read_event); |
| 437 | continue; |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | /* Otherwise discard it and wait again. */ |
| 442 | ReadConsoleInput (h, &record, 1, &n_records); |
| 443 | goto retry; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | static int |
| 448 | fd_is_pipe (int fd) |
| 449 | { |
| 450 | if (PeekNamedPipe ((HANDLE) _get_osfhandle (fd), NULL, 0, NULL, NULL, NULL)) |
| 451 | return 1; |
| 452 | else |
| 453 | return 0; |
| 454 | } |
| 455 | |
| 456 | static DWORD WINAPI |
| 457 | pipe_select_thread (void *arg) |
| 458 | { |
| 459 | struct serial *scb = arg; |
| 460 | struct ser_console_state *state; |
| 461 | int event_index; |
| 462 | HANDLE h; |
| 463 | |
| 464 | state = scb->state; |
| 465 | h = (HANDLE) _get_osfhandle (scb->fd); |
| 466 | |
| 467 | while (1) |
| 468 | { |
| 469 | HANDLE wait_events[2]; |
| 470 | DWORD n_avail; |
| 471 | |
| 472 | SetEvent (state->have_stopped); |
| 473 | |
| 474 | wait_events[0] = state->start_select; |
| 475 | wait_events[1] = state->exit_select; |
| 476 | |
| 477 | if (WaitForMultipleObjects (2, wait_events, FALSE, INFINITE) != WAIT_OBJECT_0) |
| 478 | return 0; |
| 479 | |
| 480 | ResetEvent (state->have_stopped); |
| 481 | |
| 482 | retry: |
| 483 | if (!PeekNamedPipe (h, NULL, 0, NULL, &n_avail, NULL)) |
| 484 | { |
| 485 | SetEvent (state->except_event); |
| 486 | continue; |
| 487 | } |
| 488 | |
| 489 | if (n_avail > 0) |
| 490 | { |
| 491 | SetEvent (state->read_event); |
| 492 | continue; |
| 493 | } |
| 494 | |
| 495 | /* Delay 10ms before checking again, but allow the stop event |
| 496 | to wake us. */ |
| 497 | if (WaitForSingleObject (state->stop_select, 10) == WAIT_OBJECT_0) |
| 498 | continue; |
| 499 | |
| 500 | goto retry; |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | static void |
| 505 | ser_console_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) |
| 506 | { |
| 507 | struct ser_console_state *state = scb->state; |
| 508 | |
| 509 | if (state == NULL) |
| 510 | { |
| 511 | DWORD threadId; |
| 512 | int is_tty; |
| 513 | |
| 514 | is_tty = isatty (scb->fd); |
| 515 | if (!is_tty && !fd_is_pipe (scb->fd)) |
| 516 | { |
| 517 | *read = NULL; |
| 518 | *except = NULL; |
| 519 | return; |
| 520 | } |
| 521 | |
| 522 | state = xmalloc (sizeof (struct ser_console_state)); |
| 523 | memset (state, 0, sizeof (struct ser_console_state)); |
| 524 | scb->state = state; |
| 525 | |
| 526 | /* Create auto reset events to wake, stop, and exit the select |
| 527 | thread. */ |
| 528 | state->start_select = CreateEvent (0, FALSE, FALSE, 0); |
| 529 | state->stop_select = CreateEvent (0, FALSE, FALSE, 0); |
| 530 | state->exit_select = CreateEvent (0, FALSE, FALSE, 0); |
| 531 | |
| 532 | /* Create a manual reset event to signal whether the thread is |
| 533 | stopped. This must be manual reset, because we may wait on |
| 534 | it multiple times without ever starting the thread. */ |
| 535 | state->have_stopped = CreateEvent (0, TRUE, FALSE, 0); |
| 536 | |
| 537 | /* Create our own events to report read and exceptions separately. */ |
| 538 | state->read_event = CreateEvent (0, FALSE, FALSE, 0); |
| 539 | state->except_event = CreateEvent (0, FALSE, FALSE, 0); |
| 540 | |
| 541 | if (is_tty) |
| 542 | state->thread = CreateThread (NULL, 0, console_select_thread, scb, 0, |
| 543 | &threadId); |
| 544 | else |
| 545 | state->thread = CreateThread (NULL, 0, pipe_select_thread, scb, 0, |
| 546 | &threadId); |
| 547 | } |
| 548 | |
| 549 | *read = state->read_event; |
| 550 | *except = state->except_event; |
| 551 | |
| 552 | /* Start from a blank state. */ |
| 553 | ResetEvent (state->read_event); |
| 554 | ResetEvent (state->except_event); |
| 555 | ResetEvent (state->stop_select); |
| 556 | |
| 557 | /* First check for a key already in the buffer. If there is one, |
| 558 | we don't need a thread. This also catches the second key of |
| 559 | multi-character returns from getch, for instance for arrow |
| 560 | keys. The second half is in a C library internal buffer, |
| 561 | and PeekConsoleInput will not find it. */ |
| 562 | if (_kbhit ()) |
| 563 | { |
| 564 | SetEvent (state->read_event); |
| 565 | return; |
| 566 | } |
| 567 | |
| 568 | /* Otherwise, start the select thread. */ |
| 569 | SetEvent (state->start_select); |
| 570 | } |
| 571 | |
| 572 | static void |
| 573 | ser_console_done_wait_handle (struct serial *scb) |
| 574 | { |
| 575 | struct ser_console_state *state = scb->state; |
| 576 | |
| 577 | if (state == NULL) |
| 578 | return; |
| 579 | |
| 580 | SetEvent (state->stop_select); |
| 581 | WaitForSingleObject (state->have_stopped, INFINITE); |
| 582 | } |
| 583 | |
| 584 | static void |
| 585 | ser_console_close (struct serial *scb) |
| 586 | { |
| 587 | struct ser_console_state *state = scb->state; |
| 588 | |
| 589 | if (scb->state) |
| 590 | { |
| 591 | SetEvent (state->exit_select); |
| 592 | |
| 593 | WaitForSingleObject (state->thread, INFINITE); |
| 594 | |
| 595 | CloseHandle (state->start_select); |
| 596 | CloseHandle (state->stop_select); |
| 597 | CloseHandle (state->exit_select); |
| 598 | CloseHandle (state->have_stopped); |
| 599 | |
| 600 | CloseHandle (state->read_event); |
| 601 | CloseHandle (state->except_event); |
| 602 | |
| 603 | xfree (scb->state); |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | struct ser_console_ttystate |
| 608 | { |
| 609 | int is_a_tty; |
| 610 | }; |
| 611 | |
| 612 | static serial_ttystate |
| 613 | ser_console_get_tty_state (struct serial *scb) |
| 614 | { |
| 615 | if (isatty (scb->fd)) |
| 616 | { |
| 617 | struct ser_console_ttystate *state; |
| 618 | state = (struct ser_console_ttystate *) xmalloc (sizeof *state); |
| 619 | state->is_a_tty = 1; |
| 620 | return state; |
| 621 | } |
| 622 | else |
| 623 | return NULL; |
| 624 | } |
| 625 | |
| 626 | struct pipe_state |
| 627 | { |
| 628 | /* Since we use the pipe_select_thread for our select emulation, |
| 629 | we need to place the state structure it requires at the front |
| 630 | of our state. */ |
| 631 | struct ser_console_state wait; |
| 632 | |
| 633 | /* The pex obj for our (one-stage) pipeline. */ |
| 634 | struct pex_obj *pex; |
| 635 | |
| 636 | /* Streams for the pipeline's input and output. */ |
| 637 | FILE *input, *output; |
| 638 | }; |
| 639 | |
| 640 | static struct pipe_state * |
| 641 | make_pipe_state (void) |
| 642 | { |
| 643 | struct pipe_state *ps = XMALLOC (struct pipe_state); |
| 644 | |
| 645 | memset (ps, 0, sizeof (*ps)); |
| 646 | ps->wait.read_event = INVALID_HANDLE_VALUE; |
| 647 | ps->wait.except_event = INVALID_HANDLE_VALUE; |
| 648 | ps->wait.start_select = INVALID_HANDLE_VALUE; |
| 649 | ps->wait.stop_select = INVALID_HANDLE_VALUE; |
| 650 | |
| 651 | return ps; |
| 652 | } |
| 653 | |
| 654 | static void |
| 655 | free_pipe_state (struct pipe_state *ps) |
| 656 | { |
| 657 | int saved_errno = errno; |
| 658 | |
| 659 | if (ps->wait.read_event != INVALID_HANDLE_VALUE) |
| 660 | { |
| 661 | SetEvent (ps->wait.exit_select); |
| 662 | |
| 663 | WaitForSingleObject (ps->wait.thread, INFINITE); |
| 664 | |
| 665 | CloseHandle (ps->wait.start_select); |
| 666 | CloseHandle (ps->wait.stop_select); |
| 667 | CloseHandle (ps->wait.exit_select); |
| 668 | CloseHandle (ps->wait.have_stopped); |
| 669 | |
| 670 | CloseHandle (ps->wait.read_event); |
| 671 | CloseHandle (ps->wait.except_event); |
| 672 | } |
| 673 | |
| 674 | /* Close the pipe to the child. We must close the pipe before |
| 675 | calling pex_free because pex_free will wait for the child to exit |
| 676 | and the child will not exit until the pipe is closed. */ |
| 677 | if (ps->input) |
| 678 | fclose (ps->input); |
| 679 | if (ps->pex) |
| 680 | pex_free (ps->pex); |
| 681 | /* pex_free closes ps->output. */ |
| 682 | |
| 683 | xfree (ps); |
| 684 | |
| 685 | errno = saved_errno; |
| 686 | } |
| 687 | |
| 688 | static void |
| 689 | cleanup_pipe_state (void *untyped) |
| 690 | { |
| 691 | struct pipe_state *ps = untyped; |
| 692 | |
| 693 | free_pipe_state (ps); |
| 694 | } |
| 695 | |
| 696 | static int |
| 697 | pipe_windows_open (struct serial *scb, const char *name) |
| 698 | { |
| 699 | struct pipe_state *ps; |
| 700 | FILE *pex_stderr; |
| 701 | |
| 702 | char **argv = buildargv (name); |
| 703 | struct cleanup *back_to = make_cleanup_freeargv (argv); |
| 704 | if (! argv[0] || argv[0][0] == '\0') |
| 705 | error ("missing child command"); |
| 706 | |
| 707 | |
| 708 | ps = make_pipe_state (); |
| 709 | make_cleanup (cleanup_pipe_state, ps); |
| 710 | |
| 711 | ps->pex = pex_init (PEX_USE_PIPES, "target remote pipe", NULL); |
| 712 | if (! ps->pex) |
| 713 | goto fail; |
| 714 | ps->input = pex_input_pipe (ps->pex, 1); |
| 715 | if (! ps->input) |
| 716 | goto fail; |
| 717 | |
| 718 | { |
| 719 | int err; |
| 720 | const char *err_msg |
| 721 | = pex_run (ps->pex, PEX_SEARCH | PEX_BINARY_INPUT | PEX_BINARY_OUTPUT |
| 722 | | PEX_STDERR_TO_PIPE, |
| 723 | argv[0], argv, NULL, NULL, |
| 724 | &err); |
| 725 | |
| 726 | if (err_msg) |
| 727 | { |
| 728 | /* Our caller expects us to return -1, but all they'll do with |
| 729 | it generally is print the message based on errno. We have |
| 730 | all the same information here, plus err_msg provided by |
| 731 | pex_run, so we just raise the error here. */ |
| 732 | if (err) |
| 733 | error ("error starting child process '%s': %s: %s", |
| 734 | name, err_msg, safe_strerror (err)); |
| 735 | else |
| 736 | error ("error starting child process '%s': %s", |
| 737 | name, err_msg); |
| 738 | } |
| 739 | } |
| 740 | |
| 741 | ps->output = pex_read_output (ps->pex, 1); |
| 742 | if (! ps->output) |
| 743 | goto fail; |
| 744 | scb->fd = fileno (ps->output); |
| 745 | |
| 746 | pex_stderr = pex_read_err (ps->pex, 1); |
| 747 | if (! pex_stderr) |
| 748 | goto fail; |
| 749 | scb->error_fd = fileno (pex_stderr); |
| 750 | |
| 751 | scb->state = (void *) ps; |
| 752 | |
| 753 | discard_cleanups (back_to); |
| 754 | return 0; |
| 755 | |
| 756 | fail: |
| 757 | do_cleanups (back_to); |
| 758 | return -1; |
| 759 | } |
| 760 | |
| 761 | |
| 762 | static void |
| 763 | pipe_windows_close (struct serial *scb) |
| 764 | { |
| 765 | struct pipe_state *ps = scb->state; |
| 766 | |
| 767 | /* In theory, we should try to kill the subprocess here, but the pex |
| 768 | interface doesn't give us enough information to do that. Usually |
| 769 | closing the input pipe will get the message across. */ |
| 770 | |
| 771 | free_pipe_state (ps); |
| 772 | } |
| 773 | |
| 774 | |
| 775 | static int |
| 776 | pipe_windows_read (struct serial *scb, size_t count) |
| 777 | { |
| 778 | HANDLE pipeline_out = (HANDLE) _get_osfhandle (scb->fd); |
| 779 | DWORD available; |
| 780 | DWORD bytes_read; |
| 781 | |
| 782 | if (pipeline_out == INVALID_HANDLE_VALUE) |
| 783 | return -1; |
| 784 | |
| 785 | if (! PeekNamedPipe (pipeline_out, NULL, 0, NULL, &available, NULL)) |
| 786 | return -1; |
| 787 | |
| 788 | if (count > available) |
| 789 | count = available; |
| 790 | |
| 791 | if (! ReadFile (pipeline_out, scb->buf, count, &bytes_read, NULL)) |
| 792 | return -1; |
| 793 | |
| 794 | return bytes_read; |
| 795 | } |
| 796 | |
| 797 | |
| 798 | static int |
| 799 | pipe_windows_write (struct serial *scb, const void *buf, size_t count) |
| 800 | { |
| 801 | struct pipe_state *ps = scb->state; |
| 802 | HANDLE pipeline_in; |
| 803 | DWORD written; |
| 804 | |
| 805 | int pipeline_in_fd = fileno (ps->input); |
| 806 | if (pipeline_in_fd < 0) |
| 807 | return -1; |
| 808 | |
| 809 | pipeline_in = (HANDLE) _get_osfhandle (pipeline_in_fd); |
| 810 | if (pipeline_in == INVALID_HANDLE_VALUE) |
| 811 | return -1; |
| 812 | |
| 813 | if (! WriteFile (pipeline_in, buf, count, &written, NULL)) |
| 814 | return -1; |
| 815 | |
| 816 | return written; |
| 817 | } |
| 818 | |
| 819 | |
| 820 | static void |
| 821 | pipe_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) |
| 822 | { |
| 823 | struct pipe_state *ps = scb->state; |
| 824 | |
| 825 | /* Have we allocated our events yet? */ |
| 826 | if (ps->wait.read_event == INVALID_HANDLE_VALUE) |
| 827 | { |
| 828 | DWORD threadId; |
| 829 | |
| 830 | /* Create auto reset events to wake, stop, and exit the select |
| 831 | thread. */ |
| 832 | ps->wait.start_select = CreateEvent (0, FALSE, FALSE, 0); |
| 833 | ps->wait.stop_select = CreateEvent (0, FALSE, FALSE, 0); |
| 834 | ps->wait.exit_select = CreateEvent (0, FALSE, FALSE, 0); |
| 835 | |
| 836 | /* Create a manual reset event to signal whether the thread is |
| 837 | stopped. This must be manual reset, because we may wait on |
| 838 | it multiple times without ever starting the thread. */ |
| 839 | ps->wait.have_stopped = CreateEvent (0, TRUE, FALSE, 0); |
| 840 | |
| 841 | /* Create our own events to report read and exceptions separately. |
| 842 | The exception event is currently never used. */ |
| 843 | ps->wait.read_event = CreateEvent (0, FALSE, FALSE, 0); |
| 844 | ps->wait.except_event = CreateEvent (0, FALSE, FALSE, 0); |
| 845 | |
| 846 | /* Start the select thread. */ |
| 847 | CreateThread (NULL, 0, pipe_select_thread, scb, 0, &threadId); |
| 848 | } |
| 849 | |
| 850 | *read = ps->wait.read_event; |
| 851 | *except = ps->wait.except_event; |
| 852 | |
| 853 | /* Start from a blank state. */ |
| 854 | ResetEvent (ps->wait.read_event); |
| 855 | ResetEvent (ps->wait.except_event); |
| 856 | ResetEvent (ps->wait.stop_select); |
| 857 | |
| 858 | /* Start the select thread. */ |
| 859 | SetEvent (ps->wait.start_select); |
| 860 | } |
| 861 | |
| 862 | static void |
| 863 | pipe_done_wait_handle (struct serial *scb) |
| 864 | { |
| 865 | struct pipe_state *ps = scb->state; |
| 866 | |
| 867 | /* Have we allocated our events yet? */ |
| 868 | if (ps->wait.read_event == INVALID_HANDLE_VALUE) |
| 869 | return; |
| 870 | |
| 871 | SetEvent (ps->wait.stop_select); |
| 872 | WaitForSingleObject (ps->wait.have_stopped, INFINITE); |
| 873 | } |
| 874 | |
| 875 | static int |
| 876 | pipe_avail (struct serial *scb, int fd) |
| 877 | { |
| 878 | HANDLE h = (HANDLE) _get_osfhandle (fd); |
| 879 | DWORD numBytes; |
| 880 | BOOL r = PeekNamedPipe (h, NULL, 0, NULL, &numBytes, NULL); |
| 881 | if (r == FALSE) |
| 882 | numBytes = 0; |
| 883 | return numBytes; |
| 884 | } |
| 885 | |
| 886 | struct net_windows_state |
| 887 | { |
| 888 | HANDLE read_event; |
| 889 | HANDLE except_event; |
| 890 | |
| 891 | HANDLE start_select; |
| 892 | HANDLE stop_select; |
| 893 | HANDLE exit_select; |
| 894 | HANDLE have_stopped; |
| 895 | |
| 896 | HANDLE sock_event; |
| 897 | |
| 898 | HANDLE thread; |
| 899 | }; |
| 900 | |
| 901 | static DWORD WINAPI |
| 902 | net_windows_select_thread (void *arg) |
| 903 | { |
| 904 | struct serial *scb = arg; |
| 905 | struct net_windows_state *state, state_copy; |
| 906 | int event_index; |
| 907 | |
| 908 | state = scb->state; |
| 909 | |
| 910 | while (1) |
| 911 | { |
| 912 | HANDLE wait_events[2]; |
| 913 | WSANETWORKEVENTS events; |
| 914 | |
| 915 | SetEvent (state->have_stopped); |
| 916 | |
| 917 | wait_events[0] = state->start_select; |
| 918 | wait_events[1] = state->exit_select; |
| 919 | |
| 920 | if (WaitForMultipleObjects (2, wait_events, FALSE, INFINITE) != WAIT_OBJECT_0) |
| 921 | return 0; |
| 922 | |
| 923 | ResetEvent (state->have_stopped); |
| 924 | |
| 925 | wait_events[0] = state->stop_select; |
| 926 | wait_events[1] = state->sock_event; |
| 927 | |
| 928 | event_index = WaitForMultipleObjects (2, wait_events, FALSE, INFINITE); |
| 929 | |
| 930 | if (event_index == WAIT_OBJECT_0 |
| 931 | || WaitForSingleObject (state->stop_select, 0) == WAIT_OBJECT_0) |
| 932 | continue; |
| 933 | |
| 934 | if (event_index != WAIT_OBJECT_0 + 1) |
| 935 | { |
| 936 | /* Some error has occured. Assume that this is an error |
| 937 | condition. */ |
| 938 | SetEvent (state->except_event); |
| 939 | continue; |
| 940 | } |
| 941 | |
| 942 | /* Enumerate the internal network events, and reset the object that |
| 943 | signalled us to catch the next event. */ |
| 944 | WSAEnumNetworkEvents (scb->fd, state->sock_event, &events); |
| 945 | |
| 946 | gdb_assert (events.lNetworkEvents & (FD_READ | FD_CLOSE)); |
| 947 | |
| 948 | if (events.lNetworkEvents & FD_READ) |
| 949 | SetEvent (state->read_event); |
| 950 | |
| 951 | if (events.lNetworkEvents & FD_CLOSE) |
| 952 | SetEvent (state->except_event); |
| 953 | } |
| 954 | } |
| 955 | |
| 956 | static void |
| 957 | net_windows_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) |
| 958 | { |
| 959 | struct net_windows_state *state = scb->state; |
| 960 | |
| 961 | /* Start from a clean slate. */ |
| 962 | ResetEvent (state->read_event); |
| 963 | ResetEvent (state->except_event); |
| 964 | ResetEvent (state->stop_select); |
| 965 | |
| 966 | *read = state->read_event; |
| 967 | *except = state->except_event; |
| 968 | |
| 969 | /* Check any pending events. This both avoids starting the thread |
| 970 | unnecessarily, and handles stray FD_READ events (see below). */ |
| 971 | if (WaitForSingleObject (state->sock_event, 0) == WAIT_OBJECT_0) |
| 972 | { |
| 973 | WSANETWORKEVENTS events; |
| 974 | int any = 0; |
| 975 | |
| 976 | /* Enumerate the internal network events, and reset the object that |
| 977 | signalled us to catch the next event. */ |
| 978 | WSAEnumNetworkEvents (scb->fd, state->sock_event, &events); |
| 979 | |
| 980 | /* You'd think that FD_READ or FD_CLOSE would be set here. But, |
| 981 | sometimes, neither is. I suspect that the FD_READ is set and |
| 982 | the corresponding event signalled while recv is running, and |
| 983 | the FD_READ is then lowered when recv consumes all the data, |
| 984 | but there's no way to un-signal the event. This isn't a |
| 985 | problem for the call in net_select_thread, since any new |
| 986 | events after this point will not have been drained by recv. |
| 987 | It just means that we can't have the obvious assert here. */ |
| 988 | |
| 989 | /* If there is a read event, it might be still valid, or it might |
| 990 | not be - it may have been signalled before we last called |
| 991 | recv. Double-check that there is data. */ |
| 992 | if (events.lNetworkEvents & FD_READ) |
| 993 | { |
| 994 | unsigned long available; |
| 995 | |
| 996 | if (ioctlsocket (scb->fd, FIONREAD, &available) == 0 |
| 997 | && available > 0) |
| 998 | { |
| 999 | SetEvent (state->read_event); |
| 1000 | any = 1; |
| 1001 | } |
| 1002 | else |
| 1003 | /* Oops, no data. This call to recv will cause future |
| 1004 | data to retrigger the event, e.g. while we are |
| 1005 | in net_select_thread. */ |
| 1006 | recv (scb->fd, NULL, 0, 0); |
| 1007 | } |
| 1008 | |
| 1009 | /* If there's a close event, then record it - it is obviously |
| 1010 | still valid, and it will not be resignalled. */ |
| 1011 | if (events.lNetworkEvents & FD_CLOSE) |
| 1012 | { |
| 1013 | SetEvent (state->except_event); |
| 1014 | any = 1; |
| 1015 | } |
| 1016 | |
| 1017 | /* If we set either handle, there's no need to wake the thread. */ |
| 1018 | if (any) |
| 1019 | return; |
| 1020 | } |
| 1021 | |
| 1022 | /* Start the select thread. */ |
| 1023 | SetEvent (state->start_select); |
| 1024 | } |
| 1025 | |
| 1026 | static void |
| 1027 | net_windows_done_wait_handle (struct serial *scb) |
| 1028 | { |
| 1029 | struct net_windows_state *state = scb->state; |
| 1030 | |
| 1031 | SetEvent (state->stop_select); |
| 1032 | WaitForSingleObject (state->have_stopped, INFINITE); |
| 1033 | } |
| 1034 | |
| 1035 | static int |
| 1036 | net_windows_open (struct serial *scb, const char *name) |
| 1037 | { |
| 1038 | struct net_windows_state *state; |
| 1039 | int ret; |
| 1040 | DWORD threadId; |
| 1041 | |
| 1042 | ret = net_open (scb, name); |
| 1043 | if (ret != 0) |
| 1044 | return ret; |
| 1045 | |
| 1046 | state = xmalloc (sizeof (struct net_windows_state)); |
| 1047 | memset (state, 0, sizeof (struct net_windows_state)); |
| 1048 | scb->state = state; |
| 1049 | |
| 1050 | /* Create auto reset events to wake, stop, and exit the select |
| 1051 | thread. */ |
| 1052 | state->start_select = CreateEvent (0, FALSE, FALSE, 0); |
| 1053 | state->stop_select = CreateEvent (0, FALSE, FALSE, 0); |
| 1054 | state->exit_select = CreateEvent (0, FALSE, FALSE, 0); |
| 1055 | |
| 1056 | /* Create a manual reset event to signal whether the thread is |
| 1057 | stopped. This must be manual reset, because we may wait on |
| 1058 | it multiple times without ever starting the thread. */ |
| 1059 | state->have_stopped = CreateEvent (0, TRUE, FALSE, 0); |
| 1060 | |
| 1061 | /* Associate an event with the socket. */ |
| 1062 | state->sock_event = CreateEvent (0, TRUE, FALSE, 0); |
| 1063 | WSAEventSelect (scb->fd, state->sock_event, FD_READ | FD_CLOSE); |
| 1064 | |
| 1065 | /* Create our own events to report read and close separately. */ |
| 1066 | state->read_event = CreateEvent (0, FALSE, FALSE, 0); |
| 1067 | state->except_event = CreateEvent (0, FALSE, FALSE, 0); |
| 1068 | |
| 1069 | /* And finally start the select thread. */ |
| 1070 | state->thread = CreateThread (NULL, 0, net_windows_select_thread, scb, 0, |
| 1071 | &threadId); |
| 1072 | |
| 1073 | return 0; |
| 1074 | } |
| 1075 | |
| 1076 | |
| 1077 | static void |
| 1078 | net_windows_close (struct serial *scb) |
| 1079 | { |
| 1080 | struct net_windows_state *state = scb->state; |
| 1081 | |
| 1082 | SetEvent (state->exit_select); |
| 1083 | WaitForSingleObject (state->thread, INFINITE); |
| 1084 | |
| 1085 | CloseHandle (state->read_event); |
| 1086 | CloseHandle (state->except_event); |
| 1087 | |
| 1088 | CloseHandle (state->start_select); |
| 1089 | CloseHandle (state->stop_select); |
| 1090 | CloseHandle (state->exit_select); |
| 1091 | CloseHandle (state->have_stopped); |
| 1092 | |
| 1093 | CloseHandle (state->sock_event); |
| 1094 | |
| 1095 | xfree (scb->state); |
| 1096 | |
| 1097 | net_close (scb); |
| 1098 | } |
| 1099 | |
| 1100 | void |
| 1101 | _initialize_ser_windows (void) |
| 1102 | { |
| 1103 | WSADATA wsa_data; |
| 1104 | struct serial_ops *ops; |
| 1105 | |
| 1106 | /* First register the serial port driver. */ |
| 1107 | |
| 1108 | ops = XMALLOC (struct serial_ops); |
| 1109 | memset (ops, 0, sizeof (struct serial_ops)); |
| 1110 | ops->name = "hardwire"; |
| 1111 | ops->next = 0; |
| 1112 | ops->open = ser_windows_open; |
| 1113 | ops->close = ser_windows_close; |
| 1114 | |
| 1115 | ops->flush_output = ser_windows_flush_output; |
| 1116 | ops->flush_input = ser_windows_flush_input; |
| 1117 | ops->send_break = ser_windows_send_break; |
| 1118 | |
| 1119 | /* These are only used for stdin; we do not need them for serial |
| 1120 | ports, so supply the standard dummies. */ |
| 1121 | ops->get_tty_state = ser_base_get_tty_state; |
| 1122 | ops->set_tty_state = ser_base_set_tty_state; |
| 1123 | ops->print_tty_state = ser_base_print_tty_state; |
| 1124 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; |
| 1125 | |
| 1126 | ops->go_raw = ser_windows_raw; |
| 1127 | ops->setbaudrate = ser_windows_setbaudrate; |
| 1128 | ops->setstopbits = ser_windows_setstopbits; |
| 1129 | ops->drain_output = ser_windows_drain_output; |
| 1130 | ops->readchar = ser_base_readchar; |
| 1131 | ops->write = ser_base_write; |
| 1132 | ops->async = ser_base_async; |
| 1133 | ops->read_prim = ser_windows_read_prim; |
| 1134 | ops->write_prim = ser_windows_write_prim; |
| 1135 | ops->wait_handle = ser_windows_wait_handle; |
| 1136 | |
| 1137 | serial_add_interface (ops); |
| 1138 | |
| 1139 | /* Next create the dummy serial driver used for terminals. We only |
| 1140 | provide the TTY-related methods. */ |
| 1141 | |
| 1142 | ops = XMALLOC (struct serial_ops); |
| 1143 | memset (ops, 0, sizeof (struct serial_ops)); |
| 1144 | |
| 1145 | ops->name = "terminal"; |
| 1146 | ops->next = 0; |
| 1147 | |
| 1148 | ops->close = ser_console_close; |
| 1149 | ops->get_tty_state = ser_console_get_tty_state; |
| 1150 | ops->set_tty_state = ser_base_set_tty_state; |
| 1151 | ops->print_tty_state = ser_base_print_tty_state; |
| 1152 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; |
| 1153 | ops->drain_output = ser_base_drain_output; |
| 1154 | ops->wait_handle = ser_console_wait_handle; |
| 1155 | ops->done_wait_handle = ser_console_done_wait_handle; |
| 1156 | |
| 1157 | serial_add_interface (ops); |
| 1158 | |
| 1159 | /* The pipe interface. */ |
| 1160 | |
| 1161 | ops = XMALLOC (struct serial_ops); |
| 1162 | memset (ops, 0, sizeof (struct serial_ops)); |
| 1163 | ops->name = "pipe"; |
| 1164 | ops->next = 0; |
| 1165 | ops->open = pipe_windows_open; |
| 1166 | ops->close = pipe_windows_close; |
| 1167 | ops->readchar = ser_base_readchar; |
| 1168 | ops->write = ser_base_write; |
| 1169 | ops->flush_output = ser_base_flush_output; |
| 1170 | ops->flush_input = ser_base_flush_input; |
| 1171 | ops->send_break = ser_base_send_break; |
| 1172 | ops->go_raw = ser_base_raw; |
| 1173 | ops->get_tty_state = ser_base_get_tty_state; |
| 1174 | ops->set_tty_state = ser_base_set_tty_state; |
| 1175 | ops->print_tty_state = ser_base_print_tty_state; |
| 1176 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; |
| 1177 | ops->setbaudrate = ser_base_setbaudrate; |
| 1178 | ops->setstopbits = ser_base_setstopbits; |
| 1179 | ops->drain_output = ser_base_drain_output; |
| 1180 | ops->async = ser_base_async; |
| 1181 | ops->read_prim = pipe_windows_read; |
| 1182 | ops->write_prim = pipe_windows_write; |
| 1183 | ops->wait_handle = pipe_wait_handle; |
| 1184 | ops->done_wait_handle = pipe_done_wait_handle; |
| 1185 | ops->avail = pipe_avail; |
| 1186 | |
| 1187 | serial_add_interface (ops); |
| 1188 | |
| 1189 | /* If WinSock works, register the TCP/UDP socket driver. */ |
| 1190 | |
| 1191 | if (WSAStartup (MAKEWORD (1, 0), &wsa_data) != 0) |
| 1192 | /* WinSock is unavailable. */ |
| 1193 | return; |
| 1194 | |
| 1195 | ops = XMALLOC (struct serial_ops); |
| 1196 | memset (ops, 0, sizeof (struct serial_ops)); |
| 1197 | ops->name = "tcp"; |
| 1198 | ops->next = 0; |
| 1199 | ops->open = net_windows_open; |
| 1200 | ops->close = net_windows_close; |
| 1201 | ops->readchar = ser_base_readchar; |
| 1202 | ops->write = ser_base_write; |
| 1203 | ops->flush_output = ser_base_flush_output; |
| 1204 | ops->flush_input = ser_base_flush_input; |
| 1205 | ops->send_break = ser_base_send_break; |
| 1206 | ops->go_raw = ser_base_raw; |
| 1207 | ops->get_tty_state = ser_base_get_tty_state; |
| 1208 | ops->set_tty_state = ser_base_set_tty_state; |
| 1209 | ops->print_tty_state = ser_base_print_tty_state; |
| 1210 | ops->noflush_set_tty_state = ser_base_noflush_set_tty_state; |
| 1211 | ops->setbaudrate = ser_base_setbaudrate; |
| 1212 | ops->setstopbits = ser_base_setstopbits; |
| 1213 | ops->drain_output = ser_base_drain_output; |
| 1214 | ops->async = ser_base_async; |
| 1215 | ops->read_prim = net_read_prim; |
| 1216 | ops->write_prim = net_write_prim; |
| 1217 | ops->wait_handle = net_windows_wait_handle; |
| 1218 | ops->done_wait_handle = net_windows_done_wait_handle; |
| 1219 | serial_add_interface (ops); |
| 1220 | } |