| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: txport.c,v 1.2 2002/01/30 09:27:10 mdw Exp $ |
| 4 | * |
| 5 | * Transport switch glue |
| 6 | * |
| 7 | * (c) 2001 Mark Wooding |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Jog: Programming for a jogging machine. |
| 13 | * |
| 14 | * Jog is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * Jog is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with Jog; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: txport.c,v $ |
| 32 | * Revision 1.2 2002/01/30 09:27:10 mdw |
| 33 | * Transport configuration overhaul. Configuration string is now a list of |
| 34 | * `;'-separated `key=value' strings, which can be handled either by the |
| 35 | * core or the transport module. The newline character(s) are a core |
| 36 | * parameter now. |
| 37 | * |
| 38 | * Revision 1.1 2002/01/25 19:34:45 mdw |
| 39 | * Initial revision |
| 40 | * |
| 41 | */ |
| 42 | |
| 43 | /*----- Header files ------------------------------------------------------*/ |
| 44 | |
| 45 | #ifdef HAVE_CONFIG_H |
| 46 | # include "config.h" |
| 47 | #endif |
| 48 | |
| 49 | #include <ctype.h> |
| 50 | #include <errno.h> |
| 51 | #include <stdio.h> |
| 52 | #include <stdarg.h> |
| 53 | |
| 54 | #include <sys/types.h> |
| 55 | #include <sys/time.h> |
| 56 | #include <unistd.h> |
| 57 | #include <pthread.h> |
| 58 | |
| 59 | #include <mLib/darray.h> |
| 60 | #include <mLib/dstr.h> |
| 61 | #include <mLib/lbuf.h> |
| 62 | #include <mLib/sub.h> |
| 63 | #include <mLib/tv.h> |
| 64 | |
| 65 | #include "err.h" |
| 66 | #include "jog.h" |
| 67 | #include "txport.h" |
| 68 | |
| 69 | /*----- Global variables --------------------------------------------------*/ |
| 70 | |
| 71 | #define TX_LIST 0 |
| 72 | #include "tx-socket.h" |
| 73 | #include "tx-serial-unix.h" |
| 74 | txport_ops *txlist = TX_LIST; |
| 75 | |
| 76 | const char *txname = 0; |
| 77 | const char *txfile = 0; |
| 78 | const char *txconf = 0; |
| 79 | |
| 80 | /*----- Main code ---------------------------------------------------------*/ |
| 81 | |
| 82 | /* --- @newline@ --- * |
| 83 | * |
| 84 | * Arguments: @char *s@ = pointer to line |
| 85 | * @size_t len@ = length of line |
| 86 | * @void *txv@ = pointer to transport context |
| 87 | * |
| 88 | * Returns: --- |
| 89 | * |
| 90 | * Use: Adds a line to the list. |
| 91 | */ |
| 92 | |
| 93 | static void newline(char *s, size_t len, void *txv) |
| 94 | { |
| 95 | txport *tx = txv; |
| 96 | txline *l; |
| 97 | |
| 98 | if (!s) |
| 99 | return; |
| 100 | T( trace(T_TX, "tx: completed line: `%s'", s); ) |
| 101 | l = CREATE(txline); |
| 102 | l->s = xmalloc(len + 1); |
| 103 | memcpy(l->s, s, len + 1); |
| 104 | l->len = len; |
| 105 | l->tx = tx; |
| 106 | l->next = 0; |
| 107 | l->prev = tx->ll_tail; |
| 108 | if (tx->ll_tail) |
| 109 | tx->ll_tail->next = l; |
| 110 | else |
| 111 | tx->ll = l; |
| 112 | tx->ll_tail = l; |
| 113 | } |
| 114 | |
| 115 | /* --- @tx_configure@ --- * |
| 116 | * |
| 117 | * Arguments: @txport *tx@ = pointer to transport block |
| 118 | * @const char *config@ = config string |
| 119 | * |
| 120 | * Returns: Zero if OK, nonzero on errors. |
| 121 | * |
| 122 | * Use: Applies a configuration string to a transport. |
| 123 | */ |
| 124 | |
| 125 | int tx_configure(txport *tx, const char *config) |
| 126 | { |
| 127 | char *c; |
| 128 | char *k, *v; |
| 129 | int rc = -1; |
| 130 | |
| 131 | if (!config) |
| 132 | return (0); |
| 133 | c = xstrdup(config); |
| 134 | for (k = strtok(c, ";"); k; k = strtok(0, ";")) { |
| 135 | if ((v = strchr(k, '=')) != 0) |
| 136 | *v++ = 0; |
| 137 | if (strcmp(k, "nl") == 0 || strcmp(k, "newline") == 0) { |
| 138 | int d; |
| 139 | if (!v) |
| 140 | d = LBUF_CRLF; |
| 141 | else if (strcmp(v, "none") == 0) |
| 142 | d = 0; |
| 143 | else if (strcmp(v, "crlf") == 0) |
| 144 | d = LBUF_CRLF; |
| 145 | else if (strcmp(v, "crlf-strict") == 0 || |
| 146 | strcmp(v, "strict-crlf") == 0) |
| 147 | d = LBUF_STRICTCRLF; |
| 148 | else if (strcmp(v, "cr") == 0) |
| 149 | d = '\r'; |
| 150 | else if (strcmp(v, "lf") == 0) |
| 151 | d = '\n'; |
| 152 | else if (v[0] == '\\') switch (v[1]) { |
| 153 | case 0: d = '\\'; break; |
| 154 | case 'a': d = 0x07; goto d_single; |
| 155 | case 'b': d = 0x08; goto d_single; |
| 156 | case 'f': d = 0x0c; goto d_single; |
| 157 | case 'n': d = 0x0a; goto d_single; |
| 158 | case 'r': d = 0x0d; goto d_single; |
| 159 | case 't': d = 0x09; goto d_single; |
| 160 | case 'v': d = 0x0b; goto d_single; |
| 161 | case 'e': d = 0x1b; goto d_single; |
| 162 | case 'x': |
| 163 | if (!isxdigit((unsigned char)v[2]) || |
| 164 | (d = strtoul(v + 2, &v, 16) || *v)) { |
| 165 | err_report(ERR_TXPORT, ERRTX_CONFIG, 0, |
| 166 | "bad hex escape `%s' in `newline' config", v); |
| 167 | goto err; |
| 168 | } |
| 169 | break; |
| 170 | default: |
| 171 | if (isdigit((unsigned char)v[0])) { |
| 172 | d = strtoul(v + 1, &v, 8); |
| 173 | if (*v) { |
| 174 | err_report(ERR_TXPORT, ERRTX_CONFIG, 0, |
| 175 | "bad octal escape `%s' in `newline' config", v); |
| 176 | goto err; |
| 177 | } |
| 178 | } |
| 179 | d = v[1]; |
| 180 | d_single: |
| 181 | if (v[2]) { |
| 182 | err_report(ERR_TXPORT, ERRTX_CONFIG, 0, |
| 183 | "unknown escape `%s' in `newline' config", v); |
| 184 | goto err; |
| 185 | } |
| 186 | break; |
| 187 | } else if (v[1] == 0) |
| 188 | d = v[0]; |
| 189 | else { |
| 190 | err_report(ERR_TXPORT, ERRTX_CONFIG, 0, |
| 191 | "unknown delimiter `%s' in `newline' config", v); |
| 192 | goto err; |
| 193 | } |
| 194 | tx->lb.delim = d; |
| 195 | } else { |
| 196 | int e = 0; |
| 197 | if (tx->ops->configure) |
| 198 | e = tx->ops->configure(tx, k, v); |
| 199 | if (!e) { |
| 200 | err_report(ERR_TXPORT, ERRTX_CONFIG, 0, |
| 201 | "unrecognized configuration keyword `%s'", k); |
| 202 | } |
| 203 | if (e <= 0) |
| 204 | goto err; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | rc = 0; |
| 209 | err: |
| 210 | xfree(c); |
| 211 | return (rc); |
| 212 | } |
| 213 | |
| 214 | /* --- @tx_create@ --- * |
| 215 | * |
| 216 | * Arguments: @const char *name@ = name of transport to instantiate |
| 217 | * @const char *file@ = filename for transport |
| 218 | * @const char *config@ = config string |
| 219 | * |
| 220 | * Returns: A pointer to the transport context, or null on error. |
| 221 | * |
| 222 | * Use: Creates a new transport. |
| 223 | */ |
| 224 | |
| 225 | txport *tx_create(const char *name, const char *file, const char *config) |
| 226 | { |
| 227 | txport_ops *o; |
| 228 | txport *tx; |
| 229 | pthread_attr_t ta; |
| 230 | dstr d = DSTR_INIT; |
| 231 | size_t len; |
| 232 | int e; |
| 233 | |
| 234 | /* --- Look up the transport by name --- */ |
| 235 | |
| 236 | if (!name) { |
| 237 | o = txlist; |
| 238 | goto found; |
| 239 | } |
| 240 | len = strlen(name); |
| 241 | for (o = txlist; o; o = o->next) { |
| 242 | if (strncmp(name, o->name, len) == 0) |
| 243 | goto found; |
| 244 | } |
| 245 | err_report(ERR_TXPORT, ERRTX_BADTX, 0, "unknown transport `%s'", name); |
| 246 | return (0); |
| 247 | |
| 248 | /* --- Set up the transport block --- */ |
| 249 | |
| 250 | found: |
| 251 | if (!file) { |
| 252 | const struct txfile *fv; |
| 253 | for (fv = o->fv; fv->env || fv->name; fv++) { |
| 254 | if (fv->env && (file = getenv(fv->env)) == 0) |
| 255 | continue; |
| 256 | DRESET(&d); |
| 257 | if (file) |
| 258 | DPUTS(&d, file); |
| 259 | if (file && fv->name) |
| 260 | DPUTC(&d, '/'); |
| 261 | if (fv->name) |
| 262 | DPUTS(&d, fv->name); |
| 263 | break; |
| 264 | } |
| 265 | file = d.buf; |
| 266 | } |
| 267 | if (!config) |
| 268 | config = o->config; |
| 269 | if ((tx = o->create(file)) == 0) |
| 270 | goto fail_0; |
| 271 | tx->ops = o; |
| 272 | lbuf_init(&tx->lb, newline, tx); |
| 273 | if (tx_configure(tx, config)) |
| 274 | goto fail_1; |
| 275 | tx->ll = 0; |
| 276 | tx->ll_tail = 0; |
| 277 | if ((e = pthread_mutex_init(&tx->mx, 0)) != 0) { |
| 278 | err_report(ERR_TXPORT, ERRTX_CREATE, e, |
| 279 | "mutex creation failed: %s", strerror(e)); |
| 280 | goto fail_1; |
| 281 | } |
| 282 | if ((e = pthread_cond_init(&tx->cv, 0)) != 0) { |
| 283 | err_report(ERR_TXPORT, ERRTX_CREATE, e, |
| 284 | "condvar creation failed: %s", strerror(e)); |
| 285 | goto fail_2; |
| 286 | } |
| 287 | if ((e = pthread_attr_init(&ta)) != 0) { |
| 288 | err_report(ERR_TXPORT, ERRTX_CREATE, e, |
| 289 | "thread attribute creation failed: %s", strerror(e)); |
| 290 | goto fail_3; |
| 291 | } |
| 292 | if ((e = pthread_attr_setdetachstate(&ta, PTHREAD_CREATE_DETACHED)) || |
| 293 | (e = pthread_create(&tx->tid, &ta, tx->ops->fetch, tx)) != 0) { |
| 294 | err_report(ERR_TXPORT, ERRTX_CREATE, e, |
| 295 | "thread creation failed: %s", strerror(e)); |
| 296 | goto fail_4; |
| 297 | } |
| 298 | pthread_attr_destroy(&ta); |
| 299 | DA_CREATE(&tx->buf); |
| 300 | tx->s = TX_READY; |
| 301 | DDESTROY(&d); |
| 302 | return (tx); |
| 303 | |
| 304 | /* --- Something went wrong --- */ |
| 305 | |
| 306 | fail_4: |
| 307 | pthread_attr_destroy(&ta); |
| 308 | fail_3: |
| 309 | pthread_cond_destroy(&tx->cv); |
| 310 | fail_2: |
| 311 | pthread_mutex_destroy(&tx->mx); |
| 312 | fail_1: |
| 313 | lbuf_destroy(&tx->lb); |
| 314 | tx->ops->destroy(tx); |
| 315 | fail_0: |
| 316 | DDESTROY(&d); |
| 317 | return (0); |
| 318 | } |
| 319 | |
| 320 | /* --- @tx_write@ --- * |
| 321 | * |
| 322 | * Arguments: @txport *tx@ = pointer to transport context |
| 323 | * @const void *p@ = pointer to buffer to write |
| 324 | * @size_t sz@ = size of buffer |
| 325 | * |
| 326 | * Returns: Zero if OK, or @-1@ on error. |
| 327 | * |
| 328 | * Use: Writes some data to a transport. |
| 329 | */ |
| 330 | |
| 331 | int tx_write(txport *tx, const void *p, size_t sz) |
| 332 | { |
| 333 | T( trace_block(T_TX, "tx: outgoing data", p, sz); ) |
| 334 | if (tx->ops->write(tx, p, sz) < 0) { |
| 335 | err_report(ERR_TXPORT, ERRTX_WRITE, errno, |
| 336 | "error writing to transport: %s", strerror(errno)); |
| 337 | return (-1); |
| 338 | } |
| 339 | return (0); |
| 340 | } |
| 341 | |
| 342 | /* --- @tx_printf@ --- * |
| 343 | * |
| 344 | * Arguments: @txport *tx@ = pointer to transport context |
| 345 | * @const char *p@ = pointer to string to write |
| 346 | * |
| 347 | * Returns: The number of characters printed, or @EOF@ on error. |
| 348 | * |
| 349 | * Use: Writes a textual message to a transport. |
| 350 | */ |
| 351 | |
| 352 | int tx_vprintf(txport *tx, const char *p, va_list *ap) |
| 353 | { |
| 354 | dstr d = DSTR_INIT; |
| 355 | int rc; |
| 356 | |
| 357 | dstr_vputf(&d, p, *ap); |
| 358 | rc = d.len; |
| 359 | rc = tx_write(tx, d.buf, d.len); |
| 360 | DDESTROY(&d); |
| 361 | return (rc); |
| 362 | } |
| 363 | |
| 364 | int tx_printf(txport *tx, const char *p, ...) |
| 365 | { |
| 366 | va_list ap; |
| 367 | int rc; |
| 368 | |
| 369 | va_start(ap, p); |
| 370 | rc = tx_vprintf(tx, p, &ap); |
| 371 | va_end(ap); |
| 372 | return (rc); |
| 373 | } |
| 374 | |
| 375 | /* --- @tx_newline@ --- * |
| 376 | * |
| 377 | * Arguments: @txport *tx@ = pointer to transport context |
| 378 | * |
| 379 | * Returns: Zero if OK, nonzero on error. |
| 380 | * |
| 381 | * Use: Writes a newline (record boundary) to the output. |
| 382 | */ |
| 383 | |
| 384 | int tx_newline(txport *tx) |
| 385 | { |
| 386 | static const char crlf[2] = { 0x0d, 0x0a }; |
| 387 | char c; |
| 388 | const char *p; |
| 389 | size_t sz; |
| 390 | |
| 391 | switch (tx->lb.delim) { |
| 392 | case LBUF_CRLF: |
| 393 | case LBUF_STRICTCRLF: |
| 394 | p = crlf; |
| 395 | sz = 2; |
| 396 | break; |
| 397 | case 0: |
| 398 | return (0); |
| 399 | default: |
| 400 | c = tx->lb.delim; |
| 401 | p = &c; |
| 402 | sz = 1; |
| 403 | break; |
| 404 | } |
| 405 | return (tx_write(tx, p, sz)); |
| 406 | } |
| 407 | |
| 408 | /* --- @tx_read@, @tx_readx@ --- * |
| 409 | * |
| 410 | * Arguments: @txport *tx@ = pointer to transport context |
| 411 | * @unsigned long t@ = time to wait for data (ms) |
| 412 | * @int (*filter)(const char *s, void *p)@ = filtering function |
| 413 | * @void *p@ = pointer argument for filter |
| 414 | * |
| 415 | * Returns: A pointer to a line block, which must be freed using |
| 416 | * @tx_freeline@. |
| 417 | * |
| 418 | * Use: Fetches a line from the buffer. Each line is passed to the |
| 419 | * filter function in oldest-to-newest order; the filter |
| 420 | * function returns nonzero to choose a line. If no suitable |
| 421 | * line is waiting in the raw buffer, the program blocks while |
| 422 | * more data is fetched, until the time limit @t@ is exceeded, |
| 423 | * in which case a null pointer is returned. A null filter |
| 424 | * function is equivalent to one which always selects its line. |
| 425 | */ |
| 426 | |
| 427 | txline *tx_readx(txport *tx, unsigned long t, |
| 428 | int (*filter)(const char *s, void *p), void *p) |
| 429 | { |
| 430 | txline *l, **ll = &tx->ll; |
| 431 | int e; |
| 432 | struct timeval now, tv; |
| 433 | struct timespec ts; |
| 434 | unsigned f = 0; |
| 435 | |
| 436 | #define f_lock 1u |
| 437 | |
| 438 | /* --- Get the time to wait until --- */ |
| 439 | |
| 440 | T( trace(T_TXSYS, "txsys: tx_readx begin"); ) |
| 441 | if (t != FOREVER) { |
| 442 | gettimeofday(&now, 0); |
| 443 | tv_addl(&tv, &now, t / 1000, (t % 1000) * 1000); |
| 444 | ts.tv_sec = tv.tv_sec; |
| 445 | ts.tv_nsec = tv.tv_usec * 1000; |
| 446 | } |
| 447 | |
| 448 | /* --- Check for a matching line --- */ |
| 449 | |
| 450 | again: |
| 451 | for (; *ll; ll = &l->next) { |
| 452 | l = *ll; |
| 453 | if (!filter || filter(l->s, p)) { |
| 454 | T( trace(T_TXSYS, "txsys: matched line; done"); ) |
| 455 | goto done; |
| 456 | } |
| 457 | } |
| 458 | l = 0; |
| 459 | |
| 460 | /* --- Lock the buffer --- * |
| 461 | * |
| 462 | * The following operations require a lock on the buffer, so we obtain that |
| 463 | * here. |
| 464 | */ |
| 465 | |
| 466 | if (!(f & f_lock)) { |
| 467 | if ((e = pthread_mutex_lock(&tx->mx)) != 0) { |
| 468 | err_report(ERR_TXPORT, ERRTX_READ, e, |
| 469 | "error locking mutex: %s", strerror(errno)); |
| 470 | goto done; |
| 471 | } |
| 472 | f |= f_lock; |
| 473 | T( trace(T_TXSYS, "txsys: locked buffer"); ) |
| 474 | } |
| 475 | |
| 476 | /* --- Push more stuff through the line buffer --- */ |
| 477 | |
| 478 | check: |
| 479 | if (DA_LEN(&tx->buf)) { |
| 480 | T( trace_block(T_TX, "tx: incoming data", |
| 481 | DA(&tx->buf), DA_LEN(&tx->buf)); ) |
| 482 | if (tx->lb.delim) |
| 483 | lbuf_snarf(&tx->lb, DA(&tx->buf), DA_LEN(&tx->buf)); |
| 484 | else |
| 485 | newline((char *)DA(&tx->buf), DA_LEN(&tx->buf), tx); |
| 486 | DA_SHRINK(&tx->buf, DA_LEN(&tx->buf)); |
| 487 | goto again; |
| 488 | } |
| 489 | |
| 490 | /* --- If nothing else can arrive, give up --- */ |
| 491 | |
| 492 | if (tx->s == TX_CLOSE) { |
| 493 | lbuf_close(&tx->lb); |
| 494 | T( trace(T_TXSYS, "txsys: transport closed; flushing"); ) |
| 495 | tx->s = TX_CLOSED; |
| 496 | goto again; |
| 497 | } |
| 498 | if (!t || tx->s == TX_CLOSED) { |
| 499 | T( trace(T_TX, "tx: transport is closed"); ) |
| 500 | goto done; |
| 501 | } |
| 502 | |
| 503 | /* --- Wait for some more data to arrive --- */ |
| 504 | |
| 505 | T( trace(T_TXSYS, "txsys: waiting for data"); ) |
| 506 | if (t == FOREVER) |
| 507 | e = pthread_cond_wait(&tx->cv, &tx->mx); |
| 508 | else { |
| 509 | gettimeofday(&now, 0); |
| 510 | if (TV_CMP(&now, >=, &tv)) { |
| 511 | T( trace(T_TXSYS, "txsys: timed out"); ) |
| 512 | goto done; |
| 513 | } |
| 514 | e = pthread_cond_timedwait(&tx->cv, &tx->mx, &ts); |
| 515 | } |
| 516 | if (e && e != ETIMEDOUT && e != EINTR) { |
| 517 | err_report(ERR_TXPORT, ERRTX_READ, e, |
| 518 | "error waiting on condvar: %s", strerror(errno)); |
| 519 | goto done; |
| 520 | } |
| 521 | T( trace(T_TXSYS, "txsys: woken, checking again"); ) |
| 522 | goto check; |
| 523 | |
| 524 | /* --- Everything is finished --- */ |
| 525 | |
| 526 | done: |
| 527 | if (f & f_lock) { |
| 528 | pthread_mutex_unlock(&tx->mx); |
| 529 | T( trace(T_TXSYS, "txsys: unlock buffer"); ) |
| 530 | } |
| 531 | T( trace(T_TXSYS, "tx_readx done"); ) |
| 532 | return (l); |
| 533 | |
| 534 | #undef f_lock |
| 535 | } |
| 536 | |
| 537 | txline *tx_read(txport *tx, unsigned long t) |
| 538 | { |
| 539 | return (tx_readx(tx, t, 0, 0)); |
| 540 | } |
| 541 | |
| 542 | /* --- @tx_freeline@ --- * |
| 543 | * |
| 544 | * Arguments: @txline *l@ = pointer to line |
| 545 | * |
| 546 | * Returns: --- |
| 547 | * |
| 548 | * Use: Frees a line block. |
| 549 | */ |
| 550 | |
| 551 | void tx_freeline(txline *l) |
| 552 | { |
| 553 | txport *tx = l->tx; |
| 554 | if (l->next) |
| 555 | l->next->prev = l->prev; |
| 556 | else |
| 557 | tx->ll_tail = l->prev; |
| 558 | if (l->prev) |
| 559 | l->prev->next = l->next; |
| 560 | else |
| 561 | tx->ll = l->next; |
| 562 | xfree(l->s); |
| 563 | DESTROY(l); |
| 564 | } |
| 565 | |
| 566 | /* --- @tx_destroy@ --- * |
| 567 | * |
| 568 | * Arguments: @txport *tx@ = transport context |
| 569 | * |
| 570 | * Returns: --- |
| 571 | * |
| 572 | * Use: Destroys a transport. |
| 573 | */ |
| 574 | |
| 575 | void tx_destroy(txport *tx) |
| 576 | { |
| 577 | txline *l, *ll; |
| 578 | |
| 579 | if (tx->s == TX_READY) { |
| 580 | pthread_mutex_lock(&tx->mx); |
| 581 | if (tx->s == TX_READY) |
| 582 | pthread_cancel(tx->tid); |
| 583 | pthread_mutex_unlock(&tx->mx); |
| 584 | } |
| 585 | pthread_mutex_destroy(&tx->mx); |
| 586 | pthread_cond_destroy(&tx->cv); |
| 587 | DA_DESTROY(&tx->buf); |
| 588 | lbuf_destroy(&tx->lb); |
| 589 | for (l = tx->ll; l; l = ll) { |
| 590 | ll = l->next; |
| 591 | xfree(l->s); |
| 592 | DESTROY(l); |
| 593 | } |
| 594 | tx->ops->destroy(tx); |
| 595 | } |
| 596 | |
| 597 | /*----- That's all, folks -------------------------------------------------*/ |