1 |
/* $Header$ */
|
2 |
|
3 |
/*
|
4 |
* Tclwinserial.c --
|
5 |
*
|
6 |
* This file implements the Windows-specific serial port functions,
|
7 |
* and the "serial" channel driver.
|
8 |
*
|
9 |
* Copyright (c) 1999 by Scriptics Corp.
|
10 |
*
|
11 |
* See the file "license.terms" for information on usage and redistribution
|
12 |
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
13 |
* Changes by Rolf.Schroedter@dlr.de June 25-27, 1999
|
14 |
*
|
15 |
* RCS: @(#) $Id: tclwinserial.c,v 1.1.1.1 2001/06/13 04:50:16 dtashley Exp $
|
16 |
*/
|
17 |
|
18 |
#include "tclWinInt.h"
|
19 |
|
20 |
#include <dos.h>
|
21 |
#include <fcntl.h>
|
22 |
#include <io.h>
|
23 |
#include <sys/stat.h>
|
24 |
|
25 |
/*
|
26 |
* The following variable is used to tell whether this module has been
|
27 |
* initialized.
|
28 |
*/
|
29 |
|
30 |
static int initialized = 0;
|
31 |
|
32 |
/*
|
33 |
* Bit masks used in the flags field of the SerialInfo structure below.
|
34 |
*/
|
35 |
|
36 |
#define SERIAL_PENDING (1<<0) /* Message is pending in the queue. */
|
37 |
#define SERIAL_ASYNC (1<<1) /* Channel is non-blocking. */
|
38 |
|
39 |
/*
|
40 |
* Bit masks used in the sharedFlags field of the SerialInfo structure below.
|
41 |
*/
|
42 |
|
43 |
#define SERIAL_EOF (1<<2) /* Serial has reached EOF. */
|
44 |
#define SERIAL_ERROR (1<<4)
|
45 |
#define SERIAL_WRITE (1<<5) /* enables fileevent writable
|
46 |
* one time after write operation */
|
47 |
|
48 |
/*
|
49 |
* Default time to block between checking status on the serial port.
|
50 |
*/
|
51 |
#define SERIAL_DEFAULT_BLOCKTIME 10 /* 10 msec */
|
52 |
|
53 |
/*
|
54 |
* Define Win32 read/write error masks returned by ClearCommError()
|
55 |
*/
|
56 |
#define SERIAL_READ_ERRORS ( CE_RXOVER | CE_OVERRUN | CE_RXPARITY \
|
57 |
| CE_FRAME | CE_BREAK )
|
58 |
#define SERIAL_WRITE_ERRORS ( CE_TXFULL )
|
59 |
|
60 |
/*
|
61 |
* This structure describes per-instance data for a serial based channel.
|
62 |
*/
|
63 |
|
64 |
typedef struct SerialInfo {
|
65 |
HANDLE handle;
|
66 |
struct SerialInfo *nextPtr; /* Pointer to next registered serial. */
|
67 |
Tcl_Channel channel; /* Pointer to channel structure. */
|
68 |
int validMask; /* OR'ed combination of TCL_READABLE,
|
69 |
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
70 |
* which operations are valid on the file. */
|
71 |
int watchMask; /* OR'ed combination of TCL_READABLE,
|
72 |
* TCL_WRITABLE, or TCL_EXCEPTION: indicates
|
73 |
* which events should be reported. */
|
74 |
int flags; /* State flags, see above for a list. */
|
75 |
int writable; /* flag that the channel is readable */
|
76 |
int readable; /* flag that the channel is readable */
|
77 |
int blockTime; /* max. blocktime in msec */
|
78 |
DWORD error; /* pending error code returned by
|
79 |
* ClearCommError() */
|
80 |
DWORD lastError; /* last error code, can be fetched with
|
81 |
* fconfigure chan -lasterror */
|
82 |
} SerialInfo;
|
83 |
|
84 |
typedef struct ThreadSpecificData {
|
85 |
/*
|
86 |
* The following pointer refers to the head of the list of serials
|
87 |
* that are being watched for file events.
|
88 |
*/
|
89 |
|
90 |
SerialInfo *firstSerialPtr;
|
91 |
} ThreadSpecificData;
|
92 |
|
93 |
static Tcl_ThreadDataKey dataKey;
|
94 |
|
95 |
/*
|
96 |
* The following structure is what is added to the Tcl event queue when
|
97 |
* serial events are generated.
|
98 |
*/
|
99 |
|
100 |
typedef struct SerialEvent {
|
101 |
Tcl_Event header; /* Information that is standard for
|
102 |
* all events. */
|
103 |
SerialInfo *infoPtr; /* Pointer to serial info structure. Note
|
104 |
* that we still have to verify that the
|
105 |
* serial exists before dereferencing this
|
106 |
* pointer. */
|
107 |
} SerialEvent;
|
108 |
|
109 |
COMMTIMEOUTS timeout_sync = { /* Timouts for blocking mode */
|
110 |
MAXDWORD, /* ReadIntervalTimeout */
|
111 |
MAXDWORD, /* ReadTotalTimeoutMultiplier */
|
112 |
MAXDWORD-1, /* ReadTotalTimeoutConstant,
|
113 |
MAXDWORD-1 works for both Win95/NT */
|
114 |
0, /* WriteTotalTimeoutMultiplier */
|
115 |
0, /* WriteTotalTimeoutConstant */
|
116 |
};
|
117 |
|
118 |
COMMTIMEOUTS timeout_async = { /* Timouts for non-blocking mode */
|
119 |
0, /* ReadIntervalTimeout */
|
120 |
0, /* ReadTotalTimeoutMultiplier */
|
121 |
1, /* ReadTotalTimeoutConstant */
|
122 |
0, /* WriteTotalTimeoutMultiplier */
|
123 |
0, /* WriteTotalTimeoutConstant */
|
124 |
};
|
125 |
|
126 |
/*
|
127 |
* Declarations for functions used only in this file.
|
128 |
*/
|
129 |
|
130 |
static int SerialBlockProc(ClientData instanceData, int mode);
|
131 |
static void SerialCheckProc(ClientData clientData, int flags);
|
132 |
static int SerialCloseProc(ClientData instanceData,
|
133 |
Tcl_Interp *interp);
|
134 |
static int SerialEventProc(Tcl_Event *evPtr, int flags);
|
135 |
static void SerialExitHandler(ClientData clientData);
|
136 |
static int SerialGetHandleProc(ClientData instanceData,
|
137 |
int direction, ClientData *handlePtr);
|
138 |
static ThreadSpecificData *SerialInit(void);
|
139 |
static int SerialInputProc(ClientData instanceData, char *buf,
|
140 |
int toRead, int *errorCode);
|
141 |
static int SerialOutputProc(ClientData instanceData, char *buf,
|
142 |
int toWrite, int *errorCode);
|
143 |
static void SerialSetupProc(ClientData clientData, int flags);
|
144 |
static void SerialWatchProc(ClientData instanceData, int mask);
|
145 |
static void ProcExitHandler(ClientData clientData);
|
146 |
static int SerialGetOptionProc _ANSI_ARGS_((ClientData instanceData,
|
147 |
Tcl_Interp *interp, char *optionName,
|
148 |
Tcl_DString *dsPtr));
|
149 |
static int SerialSetOptionProc _ANSI_ARGS_((ClientData instanceData,
|
150 |
Tcl_Interp *interp, char *optionName,
|
151 |
char *value));
|
152 |
|
153 |
/*
|
154 |
* This structure describes the channel type structure for command serial
|
155 |
* based IO.
|
156 |
*/
|
157 |
|
158 |
static Tcl_ChannelType serialChannelType = {
|
159 |
"serial", /* Type name. */
|
160 |
SerialBlockProc, /* Set blocking or non-blocking mode.*/
|
161 |
SerialCloseProc, /* Close proc. */
|
162 |
SerialInputProc, /* Input proc. */
|
163 |
SerialOutputProc, /* Output proc. */
|
164 |
NULL, /* Seek proc. */
|
165 |
SerialSetOptionProc, /* Set option proc. */
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166 |
SerialGetOptionProc, /* Get option proc. */
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167 |
SerialWatchProc, /* Set up notifier to watch the channel. */
|
168 |
SerialGetHandleProc, /* Get an OS handle from channel. */
|
169 |
};
|
170 |
|
171 |
/*
|
172 |
*----------------------------------------------------------------------
|
173 |
*
|
174 |
* SerialInit --
|
175 |
*
|
176 |
* This function initializes the static variables for this file.
|
177 |
*
|
178 |
* Results:
|
179 |
* None.
|
180 |
*
|
181 |
* Side effects:
|
182 |
* Creates a new event source.
|
183 |
*
|
184 |
*----------------------------------------------------------------------
|
185 |
*/
|
186 |
|
187 |
static ThreadSpecificData *
|
188 |
SerialInit()
|
189 |
{
|
190 |
ThreadSpecificData *tsdPtr;
|
191 |
|
192 |
/*
|
193 |
* Check the initialized flag first, then check it again in the mutex.
|
194 |
* This is a speed enhancement.
|
195 |
*/
|
196 |
|
197 |
if (!initialized) {
|
198 |
if (!initialized) {
|
199 |
initialized = 1;
|
200 |
Tcl_CreateExitHandler(ProcExitHandler, NULL);
|
201 |
}
|
202 |
}
|
203 |
|
204 |
tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey);
|
205 |
if (tsdPtr == NULL) {
|
206 |
tsdPtr = TCL_TSD_INIT(&dataKey);
|
207 |
tsdPtr->firstSerialPtr = NULL;
|
208 |
Tcl_CreateEventSource(SerialSetupProc, SerialCheckProc, NULL);
|
209 |
Tcl_CreateThreadExitHandler(SerialExitHandler, NULL);
|
210 |
}
|
211 |
return tsdPtr;
|
212 |
}
|
213 |
|
214 |
/*
|
215 |
*----------------------------------------------------------------------
|
216 |
*
|
217 |
* SerialExitHandler --
|
218 |
*
|
219 |
* This function is called to cleanup the serial module before
|
220 |
* Tcl is unloaded.
|
221 |
*
|
222 |
* Results:
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223 |
* None.
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224 |
*
|
225 |
* Side effects:
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226 |
* Removes the serial event source.
|
227 |
*
|
228 |
*----------------------------------------------------------------------
|
229 |
*/
|
230 |
|
231 |
static void
|
232 |
SerialExitHandler(
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233 |
ClientData clientData) /* Old window proc */
|
234 |
{
|
235 |
Tcl_DeleteEventSource(SerialSetupProc, SerialCheckProc, NULL);
|
236 |
}
|
237 |
|
238 |
/*
|
239 |
*----------------------------------------------------------------------
|
240 |
*
|
241 |
* ProcExitHandler --
|
242 |
*
|
243 |
* This function is called to cleanup the process list before
|
244 |
* Tcl is unloaded.
|
245 |
*
|
246 |
* Results:
|
247 |
* None.
|
248 |
*
|
249 |
* Side effects:
|
250 |
* Resets the process list.
|
251 |
*
|
252 |
*----------------------------------------------------------------------
|
253 |
*/
|
254 |
|
255 |
static void
|
256 |
ProcExitHandler(
|
257 |
ClientData clientData) /* Old window proc */
|
258 |
{
|
259 |
initialized = 0;
|
260 |
}
|
261 |
|
262 |
/*
|
263 |
*----------------------------------------------------------------------
|
264 |
*
|
265 |
* SerialBlockTime --
|
266 |
*
|
267 |
* Wrapper to set Tcl's block time in msec
|
268 |
*
|
269 |
* Results:
|
270 |
* None.
|
271 |
*----------------------------------------------------------------------
|
272 |
*/
|
273 |
|
274 |
void
|
275 |
SerialBlockTime(
|
276 |
int msec) /* milli-seconds */
|
277 |
{
|
278 |
Tcl_Time blockTime;
|
279 |
|
280 |
blockTime.sec = msec / 1000;
|
281 |
blockTime.usec = (msec % 1000) * 1000;
|
282 |
Tcl_SetMaxBlockTime(&blockTime);
|
283 |
}
|
284 |
/*
|
285 |
*----------------------------------------------------------------------
|
286 |
*
|
287 |
* SerialSetupProc --
|
288 |
*
|
289 |
* This procedure is invoked before Tcl_DoOneEvent blocks waiting
|
290 |
* for an event.
|
291 |
*
|
292 |
* Results:
|
293 |
* None.
|
294 |
*
|
295 |
* Side effects:
|
296 |
* Adjusts the block time if needed.
|
297 |
*
|
298 |
*----------------------------------------------------------------------
|
299 |
*/
|
300 |
|
301 |
void
|
302 |
SerialSetupProc(
|
303 |
ClientData data, /* Not used. */
|
304 |
int flags) /* Event flags as passed to Tcl_DoOneEvent. */
|
305 |
{
|
306 |
SerialInfo *infoPtr;
|
307 |
int block = 1;
|
308 |
int msec = INT_MAX; /* min. found block time */
|
309 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
310 |
|
311 |
if (!(flags & TCL_FILE_EVENTS)) {
|
312 |
return;
|
313 |
}
|
314 |
|
315 |
/*
|
316 |
* Look to see if any events handlers installed. If they are, do not block.
|
317 |
*/
|
318 |
|
319 |
for (infoPtr = tsdPtr->firstSerialPtr; infoPtr != NULL;
|
320 |
infoPtr = infoPtr->nextPtr) {
|
321 |
|
322 |
if( infoPtr->watchMask & (TCL_WRITABLE | TCL_READABLE) ) {
|
323 |
block = 0;
|
324 |
msec = min( msec, infoPtr->blockTime );
|
325 |
}
|
326 |
}
|
327 |
|
328 |
if (!block) {
|
329 |
SerialBlockTime(msec);
|
330 |
}
|
331 |
}
|
332 |
|
333 |
/*
|
334 |
*----------------------------------------------------------------------
|
335 |
*
|
336 |
* SerialCheckProc --
|
337 |
*
|
338 |
* This procedure is called by Tcl_DoOneEvent to check the serial
|
339 |
* event source for events.
|
340 |
*
|
341 |
* Results:
|
342 |
* None.
|
343 |
*
|
344 |
* Side effects:
|
345 |
* May queue an event.
|
346 |
*
|
347 |
*----------------------------------------------------------------------
|
348 |
*/
|
349 |
|
350 |
static void
|
351 |
SerialCheckProc(
|
352 |
ClientData data, /* Not used. */
|
353 |
int flags) /* Event flags as passed to Tcl_DoOneEvent. */
|
354 |
{
|
355 |
SerialInfo *infoPtr;
|
356 |
SerialEvent *evPtr;
|
357 |
int needEvent;
|
358 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
359 |
COMSTAT cStat;
|
360 |
|
361 |
if (!(flags & TCL_FILE_EVENTS)) {
|
362 |
return;
|
363 |
}
|
364 |
|
365 |
/*
|
366 |
* Queue events for any ready serials that don't already have events
|
367 |
* queued.
|
368 |
*/
|
369 |
|
370 |
for (infoPtr = tsdPtr->firstSerialPtr; infoPtr != NULL;
|
371 |
infoPtr = infoPtr->nextPtr) {
|
372 |
if (infoPtr->flags & SERIAL_PENDING) {
|
373 |
continue;
|
374 |
}
|
375 |
|
376 |
needEvent = 0;
|
377 |
|
378 |
/*
|
379 |
* If any READABLE or WRITABLE watch mask is set
|
380 |
* call ClearCommError to poll cbInQue,cbOutQue
|
381 |
* Window errors are ignored here
|
382 |
*/
|
383 |
|
384 |
if( infoPtr->watchMask & (TCL_WRITABLE | TCL_READABLE) ) {
|
385 |
if( ClearCommError( infoPtr->handle, &infoPtr->error, &cStat ) ) {
|
386 |
/*
|
387 |
* Look for empty output buffer. If empty, poll.
|
388 |
*/
|
389 |
|
390 |
if( infoPtr->watchMask & TCL_WRITABLE ) {
|
391 |
/*
|
392 |
* force fileevent after serial write error
|
393 |
*/
|
394 |
if (((infoPtr->flags & SERIAL_WRITE) != 0) &&
|
395 |
((cStat.cbOutQue == 0) ||
|
396 |
(infoPtr->error & SERIAL_WRITE_ERRORS))) {
|
397 |
/*
|
398 |
* allow only one fileevent after each callback
|
399 |
*/
|
400 |
|
401 |
infoPtr->flags &= ~SERIAL_WRITE;
|
402 |
infoPtr->writable = 1;
|
403 |
needEvent = 1;
|
404 |
}
|
405 |
}
|
406 |
|
407 |
/*
|
408 |
* Look for characters already pending in windows queue.
|
409 |
* If they are, poll.
|
410 |
*/
|
411 |
|
412 |
if( infoPtr->watchMask & TCL_READABLE ) {
|
413 |
/*
|
414 |
* force fileevent after serial read error
|
415 |
*/
|
416 |
if( (cStat.cbInQue > 0) ||
|
417 |
(infoPtr->error & SERIAL_READ_ERRORS) ) {
|
418 |
infoPtr->readable = 1;
|
419 |
needEvent = 1;
|
420 |
}
|
421 |
}
|
422 |
}
|
423 |
}
|
424 |
|
425 |
/*
|
426 |
* Queue an event if the serial is signaled for reading or writing.
|
427 |
*/
|
428 |
|
429 |
if (needEvent) {
|
430 |
infoPtr->flags |= SERIAL_PENDING;
|
431 |
evPtr = (SerialEvent *) ckalloc(sizeof(SerialEvent));
|
432 |
evPtr->header.proc = SerialEventProc;
|
433 |
evPtr->infoPtr = infoPtr;
|
434 |
Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL);
|
435 |
}
|
436 |
}
|
437 |
}
|
438 |
|
439 |
/*
|
440 |
*----------------------------------------------------------------------
|
441 |
*
|
442 |
* SerialBlockProc --
|
443 |
*
|
444 |
* Set blocking or non-blocking mode on channel.
|
445 |
*
|
446 |
* Results:
|
447 |
* 0 if successful, errno when failed.
|
448 |
*
|
449 |
* Side effects:
|
450 |
* Sets the device into blocking or non-blocking mode.
|
451 |
*
|
452 |
*----------------------------------------------------------------------
|
453 |
*/
|
454 |
|
455 |
static int
|
456 |
SerialBlockProc(
|
457 |
ClientData instanceData, /* Instance data for channel. */
|
458 |
int mode) /* TCL_MODE_BLOCKING or
|
459 |
* TCL_MODE_NONBLOCKING. */
|
460 |
{
|
461 |
COMMTIMEOUTS *timeout;
|
462 |
int errorCode = 0;
|
463 |
|
464 |
SerialInfo *infoPtr = (SerialInfo *) instanceData;
|
465 |
|
466 |
/*
|
467 |
* Serial IO on Windows can not be switched between blocking & nonblocking,
|
468 |
* hence we have to emulate the behavior. This is done in the input
|
469 |
* function by checking against a bit in the state. We set or unset the
|
470 |
* bit here to cause the input function to emulate the correct behavior.
|
471 |
*/
|
472 |
|
473 |
if (mode == TCL_MODE_NONBLOCKING) {
|
474 |
infoPtr->flags |= SERIAL_ASYNC;
|
475 |
timeout = &timeout_async;
|
476 |
} else {
|
477 |
infoPtr->flags &= ~(SERIAL_ASYNC);
|
478 |
timeout = &timeout_sync;
|
479 |
}
|
480 |
if (SetCommTimeouts(infoPtr->handle, timeout) == FALSE) {
|
481 |
TclWinConvertError(GetLastError());
|
482 |
errorCode = errno;
|
483 |
}
|
484 |
return errorCode;
|
485 |
}
|
486 |
|
487 |
/*
|
488 |
*----------------------------------------------------------------------
|
489 |
*
|
490 |
* SerialCloseProc --
|
491 |
*
|
492 |
* Closes a serial based IO channel.
|
493 |
*
|
494 |
* Results:
|
495 |
* 0 on success, errno otherwise.
|
496 |
*
|
497 |
* Side effects:
|
498 |
* Closes the physical channel.
|
499 |
*
|
500 |
*----------------------------------------------------------------------
|
501 |
*/
|
502 |
|
503 |
static int
|
504 |
SerialCloseProc(
|
505 |
ClientData instanceData, /* Pointer to SerialInfo structure. */
|
506 |
Tcl_Interp *interp) /* For error reporting. */
|
507 |
{
|
508 |
SerialInfo *serialPtr = (SerialInfo *) instanceData;
|
509 |
int errorCode, result = 0;
|
510 |
SerialInfo *infoPtr, **nextPtrPtr;
|
511 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
512 |
|
513 |
errorCode = 0;
|
514 |
serialPtr->validMask &= ~TCL_READABLE;
|
515 |
serialPtr->validMask &= ~TCL_WRITABLE;
|
516 |
|
517 |
/*
|
518 |
* Don't close the Win32 handle if the handle is a standard channel
|
519 |
* during the exit process. Otherwise, one thread may kill the stdio
|
520 |
* of another.
|
521 |
*/
|
522 |
|
523 |
if (!TclInExit()
|
524 |
|| ((GetStdHandle(STD_INPUT_HANDLE) != serialPtr->handle)
|
525 |
&& (GetStdHandle(STD_OUTPUT_HANDLE) != serialPtr->handle)
|
526 |
&& (GetStdHandle(STD_ERROR_HANDLE) != serialPtr->handle))) {
|
527 |
if (CloseHandle(serialPtr->handle) == FALSE) {
|
528 |
TclWinConvertError(GetLastError());
|
529 |
errorCode = errno;
|
530 |
}
|
531 |
}
|
532 |
|
533 |
serialPtr->watchMask &= serialPtr->validMask;
|
534 |
|
535 |
/*
|
536 |
* Remove the file from the list of watched files.
|
537 |
*/
|
538 |
|
539 |
for (nextPtrPtr = &(tsdPtr->firstSerialPtr), infoPtr = *nextPtrPtr;
|
540 |
infoPtr != NULL;
|
541 |
nextPtrPtr = &infoPtr->nextPtr, infoPtr = *nextPtrPtr) {
|
542 |
if (infoPtr == (SerialInfo *)serialPtr) {
|
543 |
*nextPtrPtr = infoPtr->nextPtr;
|
544 |
break;
|
545 |
}
|
546 |
}
|
547 |
|
548 |
/*
|
549 |
* Wrap the error file into a channel and give it to the cleanup
|
550 |
* routine.
|
551 |
*/
|
552 |
|
553 |
ckfree((char*) serialPtr);
|
554 |
|
555 |
if (errorCode == 0) {
|
556 |
return result;
|
557 |
}
|
558 |
return errorCode;
|
559 |
}
|
560 |
|
561 |
/*
|
562 |
*----------------------------------------------------------------------
|
563 |
*
|
564 |
* SerialInputProc --
|
565 |
*
|
566 |
* Reads input from the IO channel into the buffer given. Returns
|
567 |
* count of how many bytes were actually read, and an error indication.
|
568 |
*
|
569 |
* Results:
|
570 |
* A count of how many bytes were read is returned and an error
|
571 |
* indication is returned in an output argument.
|
572 |
*
|
573 |
* Side effects:
|
574 |
* Reads input from the actual channel.
|
575 |
*
|
576 |
*----------------------------------------------------------------------
|
577 |
*/
|
578 |
static int
|
579 |
SerialInputProc(
|
580 |
ClientData instanceData, /* Serial state. */
|
581 |
char *buf, /* Where to store data read. */
|
582 |
int bufSize, /* How much space is available
|
583 |
* in the buffer? */
|
584 |
int *errorCode) /* Where to store error code. */
|
585 |
{
|
586 |
SerialInfo *infoPtr = (SerialInfo *) instanceData;
|
587 |
DWORD bytesRead = 0;
|
588 |
DWORD err;
|
589 |
COMSTAT cStat;
|
590 |
|
591 |
*errorCode = 0;
|
592 |
|
593 |
/*
|
594 |
* Check if there is a CommError pending from SerialCheckProc
|
595 |
*/
|
596 |
if( infoPtr->error & SERIAL_READ_ERRORS ){
|
597 |
goto commError;
|
598 |
}
|
599 |
|
600 |
/*
|
601 |
* Look for characters already pending in windows queue.
|
602 |
* This is the mainly restored good old code from Tcl8.0
|
603 |
*/
|
604 |
|
605 |
if( ClearCommError( infoPtr->handle, &infoPtr->error, &cStat ) ) {
|
606 |
/*
|
607 |
* Check for errors here, but not in the evSetup/Check procedures
|
608 |
*/
|
609 |
|
610 |
if( infoPtr->error & SERIAL_READ_ERRORS ) {
|
611 |
goto commError;
|
612 |
}
|
613 |
if( infoPtr->flags & SERIAL_ASYNC ) {
|
614 |
/*
|
615 |
* NON_BLOCKING mode:
|
616 |
* Avoid blocking by reading more bytes than available
|
617 |
* in input buffer
|
618 |
*/
|
619 |
|
620 |
if( cStat.cbInQue > 0 ) {
|
621 |
if( (DWORD) bufSize > cStat.cbInQue ) {
|
622 |
bufSize = cStat.cbInQue;
|
623 |
}
|
624 |
} else {
|
625 |
errno = *errorCode = EAGAIN;
|
626 |
return -1;
|
627 |
}
|
628 |
} else {
|
629 |
/*
|
630 |
* BLOCKING mode:
|
631 |
* Tcl trys to read a full buffer of 4 kBytes here
|
632 |
*/
|
633 |
|
634 |
if( cStat.cbInQue > 0 ) {
|
635 |
if( (DWORD) bufSize > cStat.cbInQue ) {
|
636 |
bufSize = cStat.cbInQue;
|
637 |
}
|
638 |
} else {
|
639 |
bufSize = 1;
|
640 |
}
|
641 |
}
|
642 |
}
|
643 |
|
644 |
if( bufSize == 0 ) {
|
645 |
return bytesRead = 0;
|
646 |
}
|
647 |
|
648 |
if (ReadFile(infoPtr->handle, (LPVOID) buf, (DWORD) bufSize, &bytesRead,
|
649 |
NULL) == FALSE) {
|
650 |
err = GetLastError();
|
651 |
if (err != ERROR_IO_PENDING) {
|
652 |
goto error;
|
653 |
}
|
654 |
}
|
655 |
return bytesRead;
|
656 |
|
657 |
error:
|
658 |
TclWinConvertError(GetLastError());
|
659 |
*errorCode = errno;
|
660 |
return -1;
|
661 |
|
662 |
commError:
|
663 |
infoPtr->lastError = infoPtr->error; /* save last error code */
|
664 |
infoPtr->error = 0; /* reset error code */
|
665 |
*errorCode = EIO; /* to return read-error only once */
|
666 |
return -1;
|
667 |
}
|
668 |
|
669 |
/*
|
670 |
*----------------------------------------------------------------------
|
671 |
*
|
672 |
* SerialOutputProc --
|
673 |
*
|
674 |
* Writes the given output on the IO channel. Returns count of how
|
675 |
* many characters were actually written, and an error indication.
|
676 |
*
|
677 |
* Results:
|
678 |
* A count of how many characters were written is returned and an
|
679 |
* error indication is returned in an output argument.
|
680 |
*
|
681 |
* Side effects:
|
682 |
* Writes output on the actual channel.
|
683 |
*
|
684 |
*----------------------------------------------------------------------
|
685 |
*/
|
686 |
|
687 |
static int
|
688 |
SerialOutputProc(
|
689 |
ClientData instanceData, /* Serial state. */
|
690 |
char *buf, /* The data buffer. */
|
691 |
int toWrite, /* How many bytes to write? */
|
692 |
int *errorCode) /* Where to store error code. */
|
693 |
{
|
694 |
SerialInfo *infoPtr = (SerialInfo *) instanceData;
|
695 |
DWORD bytesWritten, err;
|
696 |
|
697 |
*errorCode = 0;
|
698 |
|
699 |
/*
|
700 |
* Check if there is a CommError pending from SerialCheckProc
|
701 |
*/
|
702 |
if( infoPtr->error & SERIAL_WRITE_ERRORS ){
|
703 |
infoPtr->lastError = infoPtr->error; /* save last error code */
|
704 |
infoPtr->error = 0; /* reset error code */
|
705 |
*errorCode = EIO; /* to return read-error only once */
|
706 |
return -1;
|
707 |
}
|
708 |
|
709 |
/*
|
710 |
* Check for a background error on the last write.
|
711 |
* Allow one write-fileevent after each callback
|
712 |
*/
|
713 |
|
714 |
if( toWrite ) {
|
715 |
infoPtr->flags |= SERIAL_WRITE;
|
716 |
}
|
717 |
|
718 |
if (WriteFile(infoPtr->handle, (LPVOID) buf, (DWORD) toWrite,
|
719 |
&bytesWritten, NULL) == FALSE) {
|
720 |
err = GetLastError();
|
721 |
if (err != ERROR_IO_PENDING) {
|
722 |
TclWinConvertError(GetLastError());
|
723 |
goto error;
|
724 |
}
|
725 |
}
|
726 |
|
727 |
return bytesWritten;
|
728 |
|
729 |
error:
|
730 |
*errorCode = errno;
|
731 |
return -1;
|
732 |
|
733 |
}
|
734 |
|
735 |
/*
|
736 |
*----------------------------------------------------------------------
|
737 |
*
|
738 |
* SerialEventProc --
|
739 |
*
|
740 |
* This function is invoked by Tcl_ServiceEvent when a file event
|
741 |
* reaches the front of the event queue. This procedure invokes
|
742 |
* Tcl_NotifyChannel on the serial.
|
743 |
*
|
744 |
* Results:
|
745 |
* Returns 1 if the event was handled, meaning it should be removed
|
746 |
* from the queue. Returns 0 if the event was not handled, meaning
|
747 |
* it should stay on the queue. The only time the event isn't
|
748 |
* handled is if the TCL_FILE_EVENTS flag bit isn't set.
|
749 |
*
|
750 |
* Side effects:
|
751 |
* Whatever the notifier callback does.
|
752 |
*
|
753 |
*----------------------------------------------------------------------
|
754 |
*/
|
755 |
|
756 |
static int
|
757 |
SerialEventProc(
|
758 |
Tcl_Event *evPtr, /* Event to service. */
|
759 |
int flags) /* Flags that indicate what events to
|
760 |
* handle, such as TCL_FILE_EVENTS. */
|
761 |
{
|
762 |
SerialEvent *serialEvPtr = (SerialEvent *)evPtr;
|
763 |
SerialInfo *infoPtr;
|
764 |
int mask;
|
765 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
766 |
|
767 |
if (!(flags & TCL_FILE_EVENTS)) {
|
768 |
return 0;
|
769 |
}
|
770 |
|
771 |
/*
|
772 |
* Search through the list of watched serials for the one whose handle
|
773 |
* matches the event. We do this rather than simply dereferencing
|
774 |
* the handle in the event so that serials can be deleted while the
|
775 |
* event is in the queue.
|
776 |
*/
|
777 |
|
778 |
for (infoPtr = tsdPtr->firstSerialPtr; infoPtr != NULL;
|
779 |
infoPtr = infoPtr->nextPtr) {
|
780 |
if (serialEvPtr->infoPtr == infoPtr) {
|
781 |
infoPtr->flags &= ~(SERIAL_PENDING);
|
782 |
break;
|
783 |
}
|
784 |
}
|
785 |
|
786 |
/*
|
787 |
* Remove stale events.
|
788 |
*/
|
789 |
|
790 |
if (!infoPtr) {
|
791 |
return 1;
|
792 |
}
|
793 |
|
794 |
/*
|
795 |
* Check to see if the serial is readable. Note
|
796 |
* that we can't tell if a serial is writable, so we always report it
|
797 |
* as being writable unless we have detected EOF.
|
798 |
*/
|
799 |
|
800 |
mask = 0;
|
801 |
if( infoPtr->watchMask & TCL_WRITABLE ) {
|
802 |
if( infoPtr->writable ) {
|
803 |
mask |= TCL_WRITABLE;
|
804 |
infoPtr->writable = 0;
|
805 |
}
|
806 |
}
|
807 |
|
808 |
if( infoPtr->watchMask & TCL_READABLE ) {
|
809 |
if( infoPtr->readable ) {
|
810 |
mask |= TCL_READABLE;
|
811 |
infoPtr->readable = 0;
|
812 |
}
|
813 |
}
|
814 |
|
815 |
/*
|
816 |
* Inform the channel of the events.
|
817 |
*/
|
818 |
|
819 |
Tcl_NotifyChannel(infoPtr->channel, infoPtr->watchMask & mask);
|
820 |
return 1;
|
821 |
}
|
822 |
|
823 |
/*
|
824 |
*----------------------------------------------------------------------
|
825 |
*
|
826 |
* SerialWatchProc --
|
827 |
*
|
828 |
* Called by the notifier to set up to watch for events on this
|
829 |
* channel.
|
830 |
*
|
831 |
* Results:
|
832 |
* None.
|
833 |
*
|
834 |
* Side effects:
|
835 |
* None.
|
836 |
*
|
837 |
*----------------------------------------------------------------------
|
838 |
*/
|
839 |
|
840 |
static void
|
841 |
SerialWatchProc(
|
842 |
ClientData instanceData, /* Serial state. */
|
843 |
int mask) /* What events to watch for, OR-ed
|
844 |
* combination of TCL_READABLE,
|
845 |
* TCL_WRITABLE and TCL_EXCEPTION. */
|
846 |
{
|
847 |
SerialInfo **nextPtrPtr, *ptr;
|
848 |
SerialInfo *infoPtr = (SerialInfo *) instanceData;
|
849 |
int oldMask = infoPtr->watchMask;
|
850 |
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
|
851 |
|
852 |
/*
|
853 |
* Since the file is always ready for events, we set the block time
|
854 |
* so we will poll.
|
855 |
*/
|
856 |
|
857 |
infoPtr->watchMask = mask & infoPtr->validMask;
|
858 |
if (infoPtr->watchMask) {
|
859 |
if (!oldMask) {
|
860 |
infoPtr->nextPtr = tsdPtr->firstSerialPtr;
|
861 |
tsdPtr->firstSerialPtr = infoPtr;
|
862 |
}
|
863 |
SerialBlockTime(infoPtr->blockTime);
|
864 |
} else {
|
865 |
if (oldMask) {
|
866 |
/*
|
867 |
* Remove the serial port from the list of watched serial ports.
|
868 |
*/
|
869 |
|
870 |
for (nextPtrPtr = &(tsdPtr->firstSerialPtr), ptr = *nextPtrPtr;
|
871 |
ptr != NULL;
|
872 |
nextPtrPtr = &ptr->nextPtr, ptr = *nextPtrPtr) {
|
873 |
if (infoPtr == ptr) {
|
874 |
*nextPtrPtr = ptr->nextPtr;
|
875 |
break;
|
876 |
}
|
877 |
}
|
878 |
}
|
879 |
}
|
880 |
}
|
881 |
|
882 |
/*
|
883 |
*----------------------------------------------------------------------
|
884 |
*
|
885 |
* SerialGetHandleProc --
|
886 |
*
|
887 |
* Called from Tcl_GetChannelHandle to retrieve OS handles from
|
888 |
* inside a command serial port based channel.
|
889 |
*
|
890 |
* Results:
|
891 |
* Returns TCL_OK with the fd in handlePtr, or TCL_ERROR if
|
892 |
* there is no handle for the specified direction.
|
893 |
*
|
894 |
* Side effects:
|
895 |
* None.
|
896 |
*
|
897 |
*----------------------------------------------------------------------
|
898 |
*/
|
899 |
|
900 |
static int
|
901 |
SerialGetHandleProc(
|
902 |
ClientData instanceData, /* The serial state. */
|
903 |
int direction, /* TCL_READABLE or TCL_WRITABLE */
|
904 |
ClientData *handlePtr) /* Where to store the handle. */
|
905 |
{
|
906 |
SerialInfo *infoPtr = (SerialInfo *) instanceData;
|
907 |
|
908 |
*handlePtr = (ClientData) infoPtr->handle;
|
909 |
return TCL_OK;
|
910 |
}
|
911 |
|
912 |
/*
|
913 |
*----------------------------------------------------------------------
|
914 |
*
|
915 |
* TclWinOpenSerialChannel --
|
916 |
*
|
917 |
* Constructs a Serial port channel for the specified standard OS handle.
|
918 |
* This is a helper function to break up the construction of
|
919 |
* channels into File, Console, or Serial.
|
920 |
*
|
921 |
* Results:
|
922 |
* Returns the new channel, or NULL.
|
923 |
*
|
924 |
* Side effects:
|
925 |
* May open the channel
|
926 |
*
|
927 |
*----------------------------------------------------------------------
|
928 |
*/
|
929 |
|
930 |
Tcl_Channel
|
931 |
TclWinOpenSerialChannel(handle, channelName, permissions)
|
932 |
HANDLE handle;
|
933 |
char *channelName;
|
934 |
int permissions;
|
935 |
{
|
936 |
SerialInfo *infoPtr;
|
937 |
ThreadSpecificData *tsdPtr;
|
938 |
|
939 |
tsdPtr = SerialInit();
|
940 |
|
941 |
SetupComm(handle, 4096, 4096);
|
942 |
PurgeComm(handle, PURGE_TXABORT | PURGE_RXABORT | PURGE_TXCLEAR
|
943 |
| PURGE_RXCLEAR);
|
944 |
|
945 |
/*
|
946 |
* default is blocking
|
947 |
*/
|
948 |
|
949 |
SetCommTimeouts(handle, &timeout_sync);
|
950 |
|
951 |
infoPtr = (SerialInfo *) ckalloc((unsigned) sizeof(SerialInfo));
|
952 |
memset(infoPtr, 0, sizeof(SerialInfo));
|
953 |
|
954 |
infoPtr->validMask = permissions;
|
955 |
infoPtr->handle = handle;
|
956 |
|
957 |
/*
|
958 |
* Use the pointer to keep the channel names unique, in case
|
959 |
* the handles are shared between multiple channels (stdin/stdout).
|
960 |
*/
|
961 |
|
962 |
wsprintfA(channelName, "file%lx", (int) infoPtr);
|
963 |
|
964 |
infoPtr->channel = Tcl_CreateChannel(&serialChannelType, channelName,
|
965 |
(ClientData) infoPtr, permissions);
|
966 |
|
967 |
|
968 |
infoPtr->readable = infoPtr->writable = 0;
|
969 |
infoPtr->blockTime = SERIAL_DEFAULT_BLOCKTIME;
|
970 |
infoPtr->lastError = infoPtr->error = 0;
|
971 |
|
972 |
/*
|
973 |
* Files have default translation of AUTO and ^Z eof char, which
|
974 |
* means that a ^Z will be accepted as EOF when reading.
|
975 |
*/
|
976 |
|
977 |
Tcl_SetChannelOption(NULL, infoPtr->channel, "-translation", "auto");
|
978 |
Tcl_SetChannelOption(NULL, infoPtr->channel, "-eofchar", "\032 {}");
|
979 |
|
980 |
return infoPtr->channel;
|
981 |
}
|
982 |
|
983 |
/*
|
984 |
*----------------------------------------------------------------------
|
985 |
*
|
986 |
* SerialErrorStr --
|
987 |
*
|
988 |
* Converts a Win32 serial error code to a list of readable errors
|
989 |
*
|
990 |
*----------------------------------------------------------------------
|
991 |
*/
|
992 |
static void
|
993 |
SerialErrorStr(error, dsPtr)
|
994 |
DWORD error; /* Win32 serial error code */
|
995 |
Tcl_DString *dsPtr; /* Where to store string */
|
996 |
{
|
997 |
if( (error & CE_RXOVER) != 0) {
|
998 |
Tcl_DStringAppendElement(dsPtr, "RXOVER");
|
999 |
}
|
1000 |
if( (error & CE_OVERRUN) != 0) {
|
1001 |
Tcl_DStringAppendElement(dsPtr, "OVERRUN");
|
1002 |
}
|
1003 |
if( (error & CE_RXPARITY) != 0) {
|
1004 |
Tcl_DStringAppendElement(dsPtr, "RXPARITY");
|
1005 |
}
|
1006 |
if( (error & CE_FRAME) != 0) {
|
1007 |
Tcl_DStringAppendElement(dsPtr, "FRAME");
|
1008 |
}
|
1009 |
if( (error & CE_BREAK) != 0) {
|
1010 |
Tcl_DStringAppendElement(dsPtr, "BREAK");
|
1011 |
}
|
1012 |
if( (error & CE_TXFULL) != 0) {
|
1013 |
Tcl_DStringAppendElement(dsPtr, "TXFULL");
|
1014 |
}
|
1015 |
if( (error & ~(SERIAL_READ_ERRORS | SERIAL_WRITE_ERRORS)) != 0) {
|
1016 |
char buf[TCL_INTEGER_SPACE + 1];
|
1017 |
wsprintfA(buf, "%d", error);
|
1018 |
Tcl_DStringAppendElement(dsPtr, buf);
|
1019 |
}
|
1020 |
}
|
1021 |
|
1022 |
/*
|
1023 |
*----------------------------------------------------------------------
|
1024 |
*
|
1025 |
* SerialSetOptionProc --
|
1026 |
*
|
1027 |
* Sets an option on a channel.
|
1028 |
*
|
1029 |
* Results:
|
1030 |
* A standard Tcl result. Also sets the interp's result on error if
|
1031 |
* interp is not NULL.
|
1032 |
*
|
1033 |
* Side effects:
|
1034 |
* May modify an option on a device.
|
1035 |
*
|
1036 |
*----------------------------------------------------------------------
|
1037 |
*/
|
1038 |
|
1039 |
static int
|
1040 |
SerialSetOptionProc(instanceData, interp, optionName, value)
|
1041 |
ClientData instanceData; /* File state. */
|
1042 |
Tcl_Interp *interp; /* For error reporting - can be NULL. */
|
1043 |
char *optionName; /* Which option to set? */
|
1044 |
char *value; /* New value for option. */
|
1045 |
{
|
1046 |
SerialInfo *infoPtr;
|
1047 |
DCB dcb;
|
1048 |
int len;
|
1049 |
BOOL result;
|
1050 |
Tcl_DString ds;
|
1051 |
TCHAR *native;
|
1052 |
|
1053 |
infoPtr = (SerialInfo *) instanceData;
|
1054 |
|
1055 |
len = strlen(optionName);
|
1056 |
if ((len > 1) && (strncmp(optionName, "-mode", len) == 0)) {
|
1057 |
if (GetCommState(infoPtr->handle, &dcb)) {
|
1058 |
native = Tcl_WinUtfToTChar(value, -1, &ds);
|
1059 |
result = (*tclWinProcs->buildCommDCBProc)(native, &dcb);
|
1060 |
Tcl_DStringFree(&ds);
|
1061 |
|
1062 |
if ((result == FALSE) ||
|
1063 |
(SetCommState(infoPtr->handle, &dcb) == FALSE)) {
|
1064 |
/*
|
1065 |
* one should separate the 2 errors...
|
1066 |
*/
|
1067 |
|
1068 |
if (interp) {
|
1069 |
Tcl_AppendResult(interp,
|
1070 |
"bad value for -mode: should be ",
|
1071 |
"baud,parity,data,stop", NULL);
|
1072 |
}
|
1073 |
return TCL_ERROR;
|
1074 |
} else {
|
1075 |
return TCL_OK;
|
1076 |
}
|
1077 |
} else {
|
1078 |
if (interp) {
|
1079 |
Tcl_AppendResult(interp, "can't get comm state", NULL);
|
1080 |
}
|
1081 |
return TCL_ERROR;
|
1082 |
}
|
1083 |
} else if ((len > 1) &&
|
1084 |
(strncmp(optionName, "-pollinterval", len) == 0)) {
|
1085 |
if ( Tcl_GetInt(interp, value, &(infoPtr->blockTime)) != TCL_OK ) {
|
1086 |
return TCL_ERROR;
|
1087 |
}
|
1088 |
} else {
|
1089 |
return Tcl_BadChannelOption(interp, optionName,
|
1090 |
"mode pollinterval");
|
1091 |
}
|
1092 |
return TCL_OK;
|
1093 |
}
|
1094 |
|
1095 |
/*
|
1096 |
*----------------------------------------------------------------------
|
1097 |
*
|
1098 |
* SerialGetOptionProc --
|
1099 |
*
|
1100 |
* Gets a mode associated with an IO channel. If the optionName arg
|
1101 |
* is non NULL, retrieves the value of that option. If the optionName
|
1102 |
* arg is NULL, retrieves a list of alternating option names and
|
1103 |
* values for the given channel.
|
1104 |
*
|
1105 |
* Results:
|
1106 |
* A standard Tcl result. Also sets the supplied DString to the
|
1107 |
* string value of the option(s) returned.
|
1108 |
*
|
1109 |
* Side effects:
|
1110 |
* The string returned by this function is in static storage and
|
1111 |
* may be reused at any time subsequent to the call.
|
1112 |
*
|
1113 |
*----------------------------------------------------------------------
|
1114 |
*/
|
1115 |
static int
|
1116 |
SerialGetOptionProc(instanceData, interp, optionName, dsPtr)
|
1117 |
ClientData instanceData; /* File state. */
|
1118 |
Tcl_Interp *interp; /* For error reporting - can be NULL. */
|
1119 |
char *optionName; /* Option to get. */
|
1120 |
Tcl_DString *dsPtr; /* Where to store value(s). */
|
1121 |
{
|
1122 |
SerialInfo *infoPtr;
|
1123 |
DCB dcb;
|
1124 |
int len;
|
1125 |
int valid = 0; /* flag if valid option parsed */
|
1126 |
|
1127 |
infoPtr = (SerialInfo *) instanceData;
|
1128 |
|
1129 |
if (optionName == NULL) {
|
1130 |
len = 0;
|
1131 |
} else {
|
1132 |
len = strlen(optionName);
|
1133 |
}
|
1134 |
|
1135 |
/*
|
1136 |
* get option -mode
|
1137 |
*/
|
1138 |
|
1139 |
if (len == 0) {
|
1140 |
Tcl_DStringAppendElement(dsPtr, "-mode");
|
1141 |
}
|
1142 |
if ((len == 0) ||
|
1143 |
((len > 1) && (strncmp(optionName, "-mode", len) == 0))) {
|
1144 |
valid = 1;
|
1145 |
if (GetCommState(infoPtr->handle, &dcb) == 0) {
|
1146 |
/*
|
1147 |
* shouldn't we flag an error instead ?
|
1148 |
*/
|
1149 |
|
1150 |
Tcl_DStringAppendElement(dsPtr, "");
|
1151 |
|
1152 |
} else {
|
1153 |
char parity;
|
1154 |
char *stop;
|
1155 |
char buf[2 * TCL_INTEGER_SPACE + 16];
|
1156 |
|
1157 |
parity = 'n';
|
1158 |
if (dcb.Parity < 4) {
|
1159 |
parity = "noems"[dcb.Parity];
|
1160 |
}
|
1161 |
|
1162 |
stop = (dcb.StopBits == ONESTOPBIT) ? "1" :
|
1163 |
(dcb.StopBits == ONE5STOPBITS) ? "1.5" : "2";
|
1164 |
|
1165 |
wsprintfA(buf, "%d,%c,%d,%s", dcb.BaudRate, parity,
|
1166 |
dcb.ByteSize, stop);
|
1167 |
Tcl_DStringAppendElement(dsPtr, buf);
|
1168 |
}
|
1169 |
}
|
1170 |
|
1171 |
/*
|
1172 |
* get option -pollinterval
|
1173 |
*/
|
1174 |
|
1175 |
if (len == 0) {
|
1176 |
Tcl_DStringAppendElement(dsPtr, "-pollinterval");
|
1177 |
}
|
1178 |
if ((len == 0) ||
|
1179 |
((len > 1) && (strncmp(optionName, "-pollinterval", len) == 0))) {
|
1180 |
char buf[TCL_INTEGER_SPACE + 1];
|
1181 |
|
1182 |
valid = 1;
|
1183 |
wsprintfA(buf, "%d", infoPtr->blockTime);
|
1184 |
Tcl_DStringAppendElement(dsPtr, buf);
|
1185 |
}
|
1186 |
|
1187 |
/*
|
1188 |
* get option -lasterror
|
1189 |
* option is readonly and returned by [fconfigure chan -lasterror]
|
1190 |
* but not returned by unnamed [fconfigure chan]
|
1191 |
*/
|
1192 |
|
1193 |
if ( (len > 1) && (strncmp(optionName, "-lasterror", len) == 0) ) {
|
1194 |
valid = 1;
|
1195 |
SerialErrorStr(infoPtr->lastError, dsPtr);
|
1196 |
}
|
1197 |
|
1198 |
if (valid) {
|
1199 |
return TCL_OK;
|
1200 |
} else {
|
1201 |
return Tcl_BadChannelOption(interp, optionName,
|
1202 |
"mode pollinterval lasterror");
|
1203 |
}
|
1204 |
}
|
1205 |
|
1206 |
|
1207 |
/* $History: tclwinserial.c $
|
1208 |
*
|
1209 |
* ***************** Version 1 *****************
|
1210 |
* User: Dtashley Date: 1/02/01 Time: 12:27a
|
1211 |
* Created in $/IjuScripter, IjuConsole/Source/Tcl Base
|
1212 |
* Initial check-in.
|
1213 |
*/
|
1214 |
|
1215 |
/* End of TCLWINSERIAL.C */ |