libsysio/src/rw.c

   1 /*
   2  *    This Cplant(TM) source code is the property of Sandia National
   3  *    Laboratories.
   4  *
   5  *    This Cplant(TM) source code is copyrighted by Sandia National
   6  *    Laboratories.
   7  *
   8  *    The redistribution of this Cplant(TM) source code is subject to the
   9  *    terms of the GNU Lesser General Public License
  10  *    (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html)
  11  *
  12  *    Cplant(TM) Copyright 1998-2004 Sandia Corporation.
  13  *    Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
  14  *    license for use of this work by or on behalf of the US Government.
  15  *    Export of this program may require a license from the United States
  16  *    Government.
  17  */
  18
  19 /*
  20  * This library is free software; you can redistribute it and/or
  21  * modify it under the terms of the GNU Lesser General Public
  22  * License as published by the Free Software Foundation; either
  23  * version 2.1 of the License, or (at your option) any later version.
  24  *
  25  * This library is distributed in the hope that it will be useful,
  26  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  28  * Lesser General Public License for more details.
  29  *
  30  * You should have received a copy of the GNU Lesser General Public
  31  * License along with this library; if not, write to the Free Software
  32  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  33  *
  34  * Questions or comments about this library should be sent to:
  35  *
  36  * Lee Ward
  37  * Sandia National Laboratories, New Mexico
  38  * P.O. Box 5800
  39  * Albuquerque, NM 87185-1110
  40  *
  41  * lee@sandia.gov
  42  */
  43
  44 #include <stdlib.h>
  45 #include <unistd.h>
  46 #include <errno.h>
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49 #include <fcntl.h>
  50 #include <sys/uio.h>
  51 #include <sys/queue.h>
  52
  53 #include "sysio.h"
  54 #include "xtio.h"
  55 #include "file.h"
  56 #include "inode.h"
  57
  58 #include "sysio-symbols.h"
  59
  60 #define IIOXOP_READ(ino)        (ino)->i_ops.inop_read, 0
  61 #define IIOXOP_WRITE(ino)       (ino)->i_ops.inop_write, 1
  62
  63 /*
  64  * Decoding the interface routine names:
  65  *
  66  * Much of this carries legacy from the POSIX world and the Intel ASCI
  67  * Red programming environment. Routine names are composed of prefix,
  68  * basic POSIX names, and postfix. The basic POSIX names are read and write.
  69  * Prefixes, left-to-right:
  70  *
  71  *      - 'i' -- asynchronous operation (from ASCI Red)
  72  *      - 'p' -- positional (POSIX)
  73  * Posfixes, only one:
  74  *      - 'v' -- vectored (POSIX)
  75  *      - 'x' -- extent-based (new for Red Storm)
  76  *
  77  * All valid combinations are available and symmetric.
  78  */
  79
  80 /*
  81  * Post op using iovec with regions specified by the passed extent vector.
  82  *
  83  * NOTE: There are enough parameters that we should really consider
  84  * passing them in a structure.
  85  */
  86 static int
  87 _sysio_iiox(int (*f)(struct inode *, struct ioctx *),
  88             int wr,
  89             struct file *fil,
  90             const struct iovec *iov,
  91             size_t iov_count,
  92             void (*iov_free)(struct ioctx *),
  93             const struct intnl_xtvec *xtv,
  94             size_t xtv_count,
  95             void (*xtv_free)(struct ioctx *),
  96             void (*completio)(struct ioctx *, void *),
  97             struct ioctx **ioctxp)
  98 {
  99         struct inode *ino;
 100         ssize_t cc;
 101         struct ioctx *ioctx;
 102         int     err;
 103         struct ioctx_callback *cb;
 104
 105         /*
 106          * Check that it was opened with flags supporting the operation.
 107          */
 108         if (!F_CHKRW(fil, wr ? 'w' : 'r'))
 109                 return -EBADF;
 110
 111         ino = fil->f_ino;
 112         if (!ino) {
 113                 /*
 114                  * Huh? It's dead.
 115                  */
 116                 return -EBADF;
 117         }
 118         cc =
 119             _sysio_validx(xtv, xtv_count,
 120                           iov, iov_count,
 121 #if defined(_LARGEFILE64_SOURCE) && defined(O_LARGEFILE)
 122                           (fil->f_flags & O_LARGEFILE) == 0
 123                             ? LONG_MAX
 124                             :
 125 #endif
 126                           _SYSIO_OFF_T_MAX);
 127         if (cc < 0)
 128                 return cc;
 129         ioctx = _sysio_ioctx_new(ino, wr, iov, iov_count, xtv, xtv_count);
 130         if (!ioctx)
 131                 return -ENOMEM;
 132         if ((iov_free &&
 133              (err = _sysio_ioctx_cb(ioctx,
 134                                     (void (*)(struct ioctx *,
 135                                               void *))iov_free,
 136                                     NULL))) ||
 137             (xtv_free &&
 138              (err = _sysio_ioctx_cb(ioctx,
 139                                     (void (*)(struct ioctx *,
 140                                               void *))xtv_free,
 141                                     NULL))) ||
 142             (completio &&
 143              (err = _sysio_ioctx_cb(ioctx,
 144                                     (void (*)(struct ioctx *,
 145                                               void *))completio,
 146                                     fil))) ||
 147             (err = (*f)(ino, ioctx))) {
 148                 /*
 149                  * Release the callback queue. Don't want it run after all.
 150                  */
 151                 while ((cb = ioctx->ioctx_cbq.tqh_first)) {
 152                         TAILQ_REMOVE(&ioctx->ioctx_cbq,
 153                                      cb,
 154                                      iocb_next);
 155                         _sysio_ioctx_cb_free(cb);
 156                 }
 157                 _sysio_ioctx_complete(ioctx);
 158                 return err;
 159         }
 160         *ioctxp = ioctx;
 161         return 0;
 162 }
 163
 164 /*
 165  * Sum iovec entries, returning total found or error if range of ssize_t would
 166  * be exceeded.
 167  */
 168 static ssize_t
 169 _sysio_sum_iovec(const struct iovec *iov, int count)
 170 {
 171         ssize_t tmp, cc;
 172
 173         if (count <= 0)
 174                 return -EINVAL;
 175
 176         cc = 0;
 177         while (count--) {
 178                 tmp = cc;
 179                 cc += iov->iov_len;
 180                 if (tmp && iov->iov_len && cc <= tmp)
 181                         return -EINVAL;
 182                 iov++;
 183         }
 184         return cc;
 185 }
 186
 187 /*
 188  * Asynch IO from/to iovec from/to current file offset.
 189  */
 190 static int
 191 _sysio_iiov(int (*f)(struct inode *, struct ioctx *),
 192             int wr,
 193             struct file *fil,
 194             const struct iovec *iov,
 195             int count,
 196             void (*iov_free)(struct ioctx *),
 197             struct intnl_xtvec *xtv,
 198             void (*xtv_free)(struct ioctx *),
 199             struct ioctx **ioctxp)
 200 {
 201         ssize_t cc;
 202         _SYSIO_OFF_T off;
 203         int     err;
 204
 205         cc = _sysio_sum_iovec(iov, count);
 206         if (cc < 0)
 207                 return (int )cc;
 208         xtv->xtv_off = fil->f_pos;
 209         xtv->xtv_len = cc;
 210         off = xtv->xtv_off + xtv->xtv_len;
 211         if (xtv->xtv_off && off <= xtv->xtv_off) {
 212                 /*
 213                  * Ouch! The IO vector specifies more bytes than
 214                  * are addressable. Trim the region to limit how
 215                  * much of the IO vector is finally transferred.
 216                  */
 217                 xtv->xtv_len = _SYSIO_OFF_T_MAX - xtv->xtv_off;
 218         }
 219         err =
 220             _sysio_iiox(f,
 221                         wr,
 222                         fil,
 223                         iov, count, iov_free,
 224                         xtv, 1, xtv_free,
 225                         (void (*)(struct ioctx *, void *))_sysio_fcompletio,
 226                         ioctxp);
 227         if (err)
 228                 return err;
 229         return 0;
 230 }
 231
 232 static void
 233 free_xtv(struct ioctx *ioctx)
 234 {
 235
 236         free((struct iovec *)ioctx->ioctx_xtv);
 237         ioctx->ioctx_iov = NULL;
 238 }
 239
 240 ioid_t
 241 SYSIO_INTERFACE_NAME(ireadv)(int fd, const struct iovec *iov, int count)
 242 {
 243         struct file *fil;
 244         struct intnl_xtvec *xtv;
 245         struct ioctx *ioctx;
 246         int     err;
 247         SYSIO_INTERFACE_DISPLAY_BLOCK;
 248
 249         SYSIO_INTERFACE_ENTER;
 250         fil = _sysio_fd_find(fd);
 251         if (!fil)
 252                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 253
 254         xtv = malloc(sizeof(struct intnl_xtvec));
 255         if (!xtv)
 256                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 257
 258         err =
 259             _sysio_iiov(IIOXOP_READ(fil->f_ino),
 260                         fil,
 261                         iov, count, NULL,
 262                         xtv, free_xtv,
 263                         &ioctx);
 264         if (err) {
 265                 free(xtv);
 266                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 267         }
 268         SYSIO_INTERFACE_RETURN(ioctx, 0);
 269 }
 270
 271 ssize_t
 272 SYSIO_INTERFACE_NAME(readv)(int fd, const struct iovec *iov, int count)
 273 {
 274         struct file *fil;
 275         struct intnl_xtvec xtvector;
 276         struct ioctx *ioctx;
 277         int     err;
 278         ssize_t cc;
 279         SYSIO_INTERFACE_DISPLAY_BLOCK;
 280
 281         SYSIO_INTERFACE_ENTER;
 282         fil = _sysio_fd_find(fd);
 283         if (!fil)
 284                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
 285
 286         err =
 287             _sysio_iiov(IIOXOP_READ(fil->f_ino),
 288                         fil,
 289                         iov, count, NULL,
 290                         &xtvector, NULL,
 291                         &ioctx);
 292         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 293                 err = (int )cc;
 294
 295         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
 296 }
 297
 298 #if defined(__GLIBC__)
 299 #undef __readv
 300 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(readv),
 301                      PREPEND(__, SYSIO_INTERFACE_NAME(readv)))
 302 #undef __libc_readv
 303 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(readv),
 304                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_readv)))
 305 #endif
 306
 307 static void
 308 free_iov(struct ioctx *ioctx)
 309 {
 310
 311         free((struct iovec *)ioctx->ioctx_iov);
 312         ioctx->ioctx_iov = NULL;
 313 }
 314
 315 ioid_t
 316 SYSIO_INTERFACE_NAME(iread)(int fd, void *buf, size_t count)
 317 {
 318         struct iovec *iov;
 319         struct file *fil;
 320         struct intnl_xtvec *xtv;
 321         struct ioctx *ioctx;
 322         int     err;
 323         SYSIO_INTERFACE_DISPLAY_BLOCK;
 324
 325         SYSIO_INTERFACE_ENTER;
 326         fil = _sysio_fd_find(fd);
 327         if (!fil)
 328                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 329
 330         iov = malloc(sizeof(struct iovec));
 331         if (!iov)
 332                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 333
 334         iov->iov_base = buf;
 335         iov->iov_len = count;
 336         xtv = malloc(sizeof(struct intnl_xtvec));
 337         if (!xtv) {
 338                 free(iov);
 339                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 340         }
 341         err =
 342             _sysio_iiov(IIOXOP_READ(fil->f_ino),
 343                         fil,
 344                         iov, 1, free_iov,
 345                         xtv, free_xtv,
 346                         &ioctx);
 347         if (err) {
 348                 free(xtv);
 349                 free(iov);
 350                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 351         }
 352         SYSIO_INTERFACE_RETURN(ioctx, 0);
 353 }
 354
 355 ssize_t
 356 SYSIO_INTERFACE_NAME(read)(int fd, void *buf, size_t count)
 357 {
 358         struct file *fil;
 359         struct iovec iovector;
 360         struct intnl_xtvec xtvector;
 361         int     err;
 362         struct ioctx *ioctx;
 363         ssize_t cc;
 364         SYSIO_INTERFACE_DISPLAY_BLOCK;
 365
 366         SYSIO_INTERFACE_ENTER;
 367         fil = _sysio_fd_find(fd);
 368         if (!fil)
 369                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
 370
 371         iovector.iov_base = buf;
 372         iovector.iov_len = count;
 373         err =
 374             _sysio_iiov(IIOXOP_READ(fil->f_ino),
 375                         fil,
 376                         &iovector, 1, NULL,
 377                         &xtvector, NULL,
 378                         &ioctx);
 379         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 380                 err = (int )cc;
 381         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
 382 }
 383
 384 #ifdef __GLIBC__
 385 #undef __read
 386 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(read),
 387                      PREPEND(__, SYSIO_INTERFACE_NAME(read)))
 388 #undef __libc_read
 389 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(read),
 390                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_read)))
 391 #endif
 392
 393 /*
 394  * Asynch IO between iovec and data at the given offset.
 395  */
 396 static int
 397 _sysio_ipiov(int (*f)(struct inode *, struct ioctx *),
 398              int wr,
 399              struct file *fil,
 400              const struct iovec *iov,
 401              int count,
 402              void (*iov_free)(struct ioctx *),
 403              _SYSIO_OFF_T off,
 404              struct intnl_xtvec *xtv,
 405              void (*xtv_free)(struct ioctx *),
 406              struct ioctx **ioctxp)
 407 {
 408         ssize_t cc;
 409         int     err;
 410
 411         SYSIO_ENTER;
 412         cc = _sysio_sum_iovec(iov, count);
 413         if (cc < 0) {
 414                 SYSIO_LEAVE;
 415                 return (int )cc;
 416         }
 417         xtv->xtv_off = off,
 418         xtv->xtv_len = cc;
 419         err =
 420             _sysio_iiox(f,
 421                         wr,
 422                         fil,
 423                         iov, count, iov_free,
 424                         xtv, 1, xtv_free,
 425                         NULL,
 426                         ioctxp);
 427         SYSIO_LEAVE;
 428         if (err)
 429                 return err;
 430         return 0;
 431 }
 432
 433 static ioid_t
 434 PREPEND(_, SYSIO_INTERFACE_NAME(ipreadv))(int fd,
 435                                           const struct iovec *iov,
 436                                           size_t count,
 437                                           _SYSIO_OFF_T offset)
 438 {
 439         struct file *fil;
 440         struct intnl_xtvec *xtv;
 441         struct ioctx *ioctx;
 442         int     err;
 443         SYSIO_INTERFACE_DISPLAY_BLOCK;
 444
 445         SYSIO_INTERFACE_ENTER;
 446         fil = _sysio_fd_find(fd);
 447         if (!fil)
 448                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 449
 450         xtv = malloc(sizeof(struct intnl_xtvec));
 451         if (!xtv)
 452                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 453
 454         err =
 455             _sysio_ipiov(IIOXOP_READ(fil->f_ino),
 456                          fil,
 457                          iov, count, NULL,
 458                          offset,
 459                          xtv, free_xtv,
 460                          &ioctx);
 461         if (err) {
 462                 free(xtv);
 463                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 464         }
 465         SYSIO_INTERFACE_RETURN(ioctx, 0);
 466 }
 467
 468 #ifdef _LARGEFILE64_SOURCE
 469 #undef ipread64v
 470 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ipreadv)),
 471                      SYSIO_INTERFACE_NAME(ipread64v))
 472 #endif
 473
 474 ioid_t
 475 SYSIO_INTERFACE_NAME(ipreadv)(int fd,
 476                               const struct iovec *iov,
 477                               size_t count,
 478                               off_t offset)
 479 {
 480
 481         return PREPEND(_, SYSIO_INTERFACE_NAME(ipreadv))(fd,
 482                                                          iov,
 483                                                          count,
 484                                                          offset);
 485 }
 486
 487 static ssize_t
 488 PREPEND(_, SYSIO_INTERFACE_NAME(preadv))(int fd,
 489                                          const struct iovec *iov,
 490                                          size_t count,
 491                                          _SYSIO_OFF_T offset)
 492 {
 493         struct file *fil;
 494         struct intnl_xtvec xtvector;
 495         struct ioctx *ioctx;
 496         int     err;
 497         ssize_t cc;
 498         SYSIO_INTERFACE_DISPLAY_BLOCK;
 499
 500         SYSIO_INTERFACE_ENTER;
 501         fil = _sysio_fd_find(fd);
 502         if (!fil)
 503                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
 504
 505         err =
 506             _sysio_ipiov(IIOXOP_READ(fil->f_ino),
 507                          fil,
 508                          iov, count, NULL,
 509                          offset,
 510                          &xtvector, NULL,
 511                          &ioctx);
 512         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 513                 err = (int )cc;
 514
 515         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
 516 }
 517
 518 #ifdef _LARGEFILE64_SOURCE
 519 #undef pread64v
 520 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(preadv)),
 521                      SYSIO_INTERFACE_NAME(pread64v))
 522 #endif
 523
 524 ssize_t
 525 SYSIO_INTERFACE_NAME(preadv)(int fd,
 526                              const struct iovec *iov,
 527                              size_t count,
 528                              off_t offset)
 529 {
 530
 531         return PREPEND(_, SYSIO_INTERFACE_NAME(preadv))(fd,
 532                                                         iov,
 533                                                         count,
 534                                                         offset);
 535 }
 536
 537 static ioid_t
 538 PREPEND(_, SYSIO_INTERFACE_NAME(ipread))(int fd,
 539                                          void *buf,
 540                                          size_t count,
 541                                          _SYSIO_OFF_T offset)
 542 {
 543         struct file *fil;
 544         struct intnl_xtvec *xtv;
 545         struct iovec *iov;
 546         struct ioctx *ioctx;
 547         int     err;
 548         SYSIO_INTERFACE_DISPLAY_BLOCK;
 549
 550         SYSIO_INTERFACE_ENTER;
 551         fil = _sysio_fd_find(fd);
 552         if (!fil)
 553                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 554
 555         xtv = malloc(sizeof(struct intnl_xtvec));
 556         iov = malloc(sizeof(struct iovec));
 557         if (!(xtv && iov)) {
 558                 err = -ENOMEM;
 559                 goto error;
 560         }
 561         xtv->xtv_off = offset;
 562         iov->iov_base = buf;
 563         xtv->xtv_len = iov->iov_len = count;
 564         err =
 565             _sysio_ipiov(IIOXOP_READ(fil->f_ino),
 566                          fil,
 567                          iov, 1, free_iov,
 568                          offset,
 569                          xtv, free_xtv,
 570                          &ioctx);
 571 error:
 572         if (err) {
 573                 if (iov)
 574                         free(iov);
 575                 if (xtv)
 576                         free(xtv);
 577                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 578         }
 579         SYSIO_INTERFACE_RETURN(ioctx, 0);
 580 }
 581
 582 #ifdef _LARGEFILE64_SOURCE
 583 #undef ipread64
 584 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ipread)),
 585                      SYSIO_INTERFACE_NAME(ipread64))
 586 #endif
 587
 588 ioid_t
 589 SYSIO_INTERFACE_NAME(ipread)(int fd,
 590                              void *buf,
 591                              size_t count,
 592                              off_t offset)
 593 {
 594
 595         return PREPEND(_, SYSIO_INTERFACE_NAME(ipread))(fd,
 596                                                         buf,
 597                                                         count,
 598                                                         offset);
 599 }
 600
 601 ssize_t
 602 PREPEND(_, SYSIO_INTERFACE_NAME(pread))(int fd,
 603                                         void *buf,
 604                                         size_t count,
 605                                         _SYSIO_OFF_T offset)
 606 {
 607         struct file *fil;
 608         struct intnl_xtvec xtvec;
 609         struct iovec iovec;
 610         struct ioctx *ioctx;
 611         int     err;
 612         ssize_t cc;
 613         SYSIO_INTERFACE_DISPLAY_BLOCK;
 614
 615         SYSIO_INTERFACE_ENTER;
 616         fil = _sysio_fd_find(fd);
 617         if (!fil)
 618                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 619
 620         xtvec.xtv_off = offset;
 621         iovec.iov_base = buf;
 622         xtvec.xtv_len = iovec.iov_len = count;
 623         err =
 624             _sysio_ipiov(IIOXOP_READ(fil->f_ino),
 625                          fil,
 626                          &iovec, 1, NULL,
 627                          offset,
 628                          &xtvec, NULL,
 629                          &ioctx);
 630         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 631                 err = (int )cc;
 632
 633         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
 634 }
 635
 636 #ifdef _LARGEFILE64_SOURCE
 637 #undef pread64
 638 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pread)),
 639                      SYSIO_INTERFACE_NAME(pread64))
 640 #if __GLIBC__
 641 #undef __pread64
 642 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pread)),
 643                      PREPEND(__, SYSIO_INTERFACE_NAME(pread64)))
 644 #undef __libc_pread64
 645 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pread)),
 646                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_pread64)))
 647 #endif
 648 #endif
 649
 650 ssize_t
 651 SYSIO_INTERFACE_NAME(pread)(int fd, void *buf, size_t count, off_t offset)
 652 {
 653
 654         return PREPEND(_, SYSIO_INTERFACE_NAME(pread))(fd,
 655                                                        buf,
 656                                                        count,
 657                                                        offset);
 658 }
 659
 660 #if __GLIBC__
 661 #undef __pread
 662 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(pread),
 663                      PREPEND(__, SYSIO_INTERFACE_NAME(pread)))
 664 #undef __libc_pread
 665 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(pread),
 666                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_pread)))
 667 #endif
 668
 669 static ioid_t
 670 PREPEND(_, SYSIO_INTERFACE_NAME(ireadx))(int fd,
 671                                          const struct iovec *iov,
 672                                          size_t iov_count,
 673                                          const struct intnl_xtvec *xtv,
 674                                          size_t xtv_count)
 675 {
 676         struct file *fil;
 677         int     err;
 678         struct ioctx *ioctx;
 679         SYSIO_INTERFACE_DISPLAY_BLOCK;
 680
 681         SYSIO_INTERFACE_ENTER;
 682         fil = _sysio_fd_find(fd);
 683         if (!fil)
 684                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 685
 686         /* Perform a check on the iov_count and xtv_count */
 687         if ((iov_count == 0) || (xtv_count == 0))
 688                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EINVAL);
 689
 690         err =
 691             _sysio_iiox(IIOXOP_READ(fil->f_ino),
 692                         fil,
 693                         iov, iov_count, NULL,
 694                         xtv, xtv_count, NULL,
 695                         NULL,
 696                         &ioctx);
 697
 698         SYSIO_INTERFACE_RETURN(err ? IOID_FAIL : ioctx, err);
 699 }
 700
 701 #ifdef _LARGEFILE64_SOURCE
 702 #undef iread64x
 703 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ireadx)),
 704                      SYSIO_INTERFACE_NAME(iread64x))
 705 #endif
 706
 707 #ifdef _LARGEFILE64_SOURCE
 708 ioid_t
 709 SYSIO_INTERFACE_NAME(ireadx)(int fd,
 710                              const struct iovec *iov, size_t iov_count,
 711                              const struct xtvec *xtv, size_t xtv_count)
 712 {
 713         struct file *fil;
 714         struct intnl_xtvec *ixtv, *ixtvent;
 715         size_t  count;
 716         int     err;
 717         struct ioctx *ioctx;
 718         SYSIO_INTERFACE_DISPLAY_BLOCK;
 719
 720         SYSIO_INTERFACE_ENTER;
 721         fil = _sysio_fd_find(fd);
 722         if (!fil)
 723                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 724
 725
 726         /* Perform a check on the iov_count and xtv_count */
 727         if ((iov_count == 0) || (xtv_count == 0))
 728                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EINVAL);
 729
 730         ixtv = ixtvent = malloc(xtv_count * sizeof(struct intnl_xtvec));
 731         if (!ixtv)
 732                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 733
 734         count = xtv_count;
 735         while (count--) {
 736                 ixtvent->xtv_off = xtv->xtv_off;
 737                 ixtvent->xtv_len = xtv->xtv_len;
 738                 ixtvent++;
 739                 xtv++;
 740         }
 741
 742         err =
 743             _sysio_iiox(IIOXOP_READ(fil->f_ino),
 744                         fil,
 745                         iov, iov_count, NULL,
 746                         ixtv, xtv_count, free_xtv,
 747                         NULL,
 748                         &ioctx);
 749         if (err) {
 750                 free(ixtv);
 751                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 752         }
 753         SYSIO_INTERFACE_RETURN(ioctx, 0);
 754 }
 755 #else
 756 #undef ireadx
 757 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ireadx)),
 758                      SYSIO_INTERFACE_NAME(ireadx))
 759 #endif
 760
 761 ssize_t
 762 SYSIO_INTERFACE_NAME(readx)(int fd,
 763                             const struct iovec *iov, size_t iov_count,
 764                             const struct xtvec *xtv, size_t xtv_count)
 765 {
 766         ioid_t  ioid;
 767
 768         if ((ioid = SYSIO_INTERFACE_NAME(ireadx)(fd,
 769                                                  iov,
 770                                                  iov_count,
 771                                                  xtv,
 772                                                  xtv_count)) == IOID_FAIL)
 773                 return -1;
 774         return SYSIO_INTERFACE_NAME(iowait)(ioid);
 775 }
 776
 777 #ifdef _LARGEFILE64_SOURCE
 778 #undef iread64x
 779 ssize_t
 780 SYSIO_INTERFACE_NAME(read64x)(int fd,
 781                               const struct iovec *iov, size_t iov_count,
 782                               const struct xtvec64 *xtv, size_t xtv_count)
 783 {
 784         ioid_t  ioid;
 785
 786         if ((ioid = SYSIO_INTERFACE_NAME(iread64x)(fd,
 787                                                    iov,
 788                                                    iov_count,
 789                                                    xtv,
 790                                                    xtv_count)) == IOID_FAIL)
 791                 return -1;
 792         return SYSIO_INTERFACE_NAME(iowait)(ioid);
 793 }
 794 #endif
 795
 796 #ifdef notdef
 797 int
 798 read_list(int fd,
 799           int mem_list_count,
 800           char *mem_offsets[],
 801           int mem_lengths[],
 802           int file_list_count,
 803           int64_t file_offsets[],
 804           int32_t file_lengths[])
 805 {
 806         SYSIO_INTERFACE_DISPLAY_BLOCK;
 807
 808         SYSIO_INTERFACE_ENTER;
 809         SYSIO_INTERFACE_RETURN(-1, -ENOSYS);
 810 }
 811 #endif
 812
 813 ioid_t
 814 SYSIO_INTERFACE_NAME(iwritev)(int fd,
 815                               const struct iovec *iov,
 816                               int count)
 817 {
 818         struct file *fil;
 819         struct intnl_xtvec *xtv;
 820         struct ioctx *ioctx;
 821         int     err;
 822         SYSIO_INTERFACE_DISPLAY_BLOCK;
 823
 824         SYSIO_INTERFACE_ENTER;
 825         fil = _sysio_fd_find(fd);
 826         if (!fil)
 827                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 828
 829         xtv = malloc(sizeof(struct intnl_xtvec));
 830         if (!xtv)
 831                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 832
 833         err =
 834             _sysio_iiov(IIOXOP_WRITE(fil->f_ino),
 835                         fil,
 836                         iov, count, NULL,
 837                         xtv, free_xtv,
 838                         &ioctx);
 839         if (err) {
 840                 free(xtv);
 841                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 842         }
 843         SYSIO_INTERFACE_RETURN(ioctx, 0);
 844 }
 845
 846 ssize_t
 847 SYSIO_INTERFACE_NAME(writev)(int fd, const struct iovec *iov, int count)
 848 {
 849         struct file *fil;
 850         struct intnl_xtvec xtvector;
 851         struct ioctx *ioctx;
 852         int     err;
 853         ssize_t cc;
 854         SYSIO_INTERFACE_DISPLAY_BLOCK;
 855
 856         SYSIO_INTERFACE_ENTER;
 857         fil = _sysio_fd_find(fd);
 858         if (!fil)
 859                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
 860
 861         err =
 862             _sysio_iiov(IIOXOP_WRITE(fil->f_ino),
 863                         fil,
 864                         iov, count, NULL,
 865                         &xtvector, NULL,
 866                         &ioctx);
 867         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 868                 err = (int )cc;
 869
 870         SYSIO_INTERFACE_RETURN(err < 0 ? -1 : cc, err);
 871 }
 872
 873 #ifdef __GLIBC__
 874 #undef __writev
 875 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(writev),
 876                      PREPEND(__, SYSIO_INTERFACE_NAME(writev)))
 877 #undef __libc_writev
 878 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(writev),
 879                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_writev)))
 880 #endif
 881
 882 ioid_t
 883 SYSIO_INTERFACE_NAME(iwrite)(int fd, const void *buf, size_t count)
 884 {
 885         struct iovec *iov;
 886         struct file *fil;
 887         struct intnl_xtvec *xtv;
 888         struct ioctx *ioctx;
 889         int     err;
 890         SYSIO_INTERFACE_DISPLAY_BLOCK;
 891
 892         SYSIO_INTERFACE_ENTER;
 893         fil = _sysio_fd_find(fd);
 894         if (!fil)
 895                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 896
 897         iov = malloc(sizeof(struct iovec));
 898         if (!iov)
 899                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 900
 901         iov->iov_base = (void *)buf;
 902         iov->iov_len = count;
 903         xtv = malloc(sizeof(struct intnl_xtvec));
 904         if (!xtv) {
 905                 free(iov);
 906                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 907         }
 908         err =
 909             _sysio_iiov(IIOXOP_WRITE(fil->f_ino),
 910                         fil,
 911                         iov, 1, free_iov,
 912                         xtv, free_xtv,
 913                         &ioctx);
 914         if (err) {
 915                 free(xtv);
 916                 free(iov);
 917                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 918         }
 919         SYSIO_INTERFACE_RETURN(ioctx, 0);
 920 }
 921
 922 ssize_t
 923 SYSIO_INTERFACE_NAME(write)(int fd, const void *buf, size_t count)
 924 {
 925         struct file *fil;
 926         struct iovec iovector;
 927         struct intnl_xtvec xtvector;
 928         int     err;
 929         struct ioctx *ioctx;
 930         ssize_t cc;
 931         SYSIO_INTERFACE_DISPLAY_BLOCK;
 932
 933         SYSIO_INTERFACE_ENTER;
 934         fil = _sysio_fd_find(fd);
 935         if (!fil)
 936                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
 937
 938         iovector.iov_base = (void *)buf;
 939         iovector.iov_len = count;
 940         err =
 941             _sysio_iiov(IIOXOP_WRITE(fil->f_ino),
 942                         fil,
 943                         &iovector, 1, NULL,
 944                         &xtvector, NULL,
 945                         &ioctx);
 946         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
 947                 err = (int )cc;
 948
 949         SYSIO_INTERFACE_RETURN(err < 0 ? -1 : cc, err);
 950 }
 951
 952 #ifdef __GLIBC__
 953 #undef __write
 954 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(write),
 955                      PREPEND(__, SYSIO_INTERFACE_NAME(write)))
 956 #undef __libc_write
 957 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(write),
 958                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_write)))
 959 #endif
 960
 961 static ioid_t
 962 PREPEND(_, SYSIO_INTERFACE_NAME(ipwritev))(int fd,
 963                                            const struct iovec *iov,
 964                                            size_t count,
 965                                            _SYSIO_OFF_T offset)
 966 {
 967         struct file *fil;
 968         struct intnl_xtvec *xtv;
 969         struct ioctx *ioctx;
 970         int     err;
 971         SYSIO_INTERFACE_DISPLAY_BLOCK;
 972
 973         SYSIO_INTERFACE_ENTER;
 974         fil = _sysio_fd_find(fd);
 975         if (!fil)
 976                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
 977
 978         xtv = malloc(sizeof(struct intnl_xtvec));
 979         if (!xtv)
 980                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
 981
 982         err =
 983             _sysio_ipiov(IIOXOP_WRITE(fil->f_ino),
 984                          fil,
 985                          iov, count, NULL,
 986                          offset,
 987                          xtv, free_xtv,
 988                          &ioctx);
 989         if (err) {
 990                 free(xtv);
 991                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
 992         }
 993         SYSIO_INTERFACE_RETURN(ioctx, 0);
 994 }
 995
 996 #ifdef _LARGEFILE64_SOURCE
 997 #undef ipwrite64v
 998 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ipwritev)),
 999                      SYSIO_INTERFACE_NAME(ipwrite64v))
1000 #endif
1001
1002 ioid_t
1003 SYSIO_INTERFACE_NAME(ipwritev)(int fd,
1004                                const struct iovec *iov,
1005                                size_t count,
1006                                off_t offset)
1007 {
1008
1009         return PREPEND(_, SYSIO_INTERFACE_NAME(ipwritev))(fd,
1010                                                           iov,
1011                                                           count,
1012                                                           offset);
1013 }
1014
1015 static ssize_t
1016 PREPEND(_, SYSIO_INTERFACE_NAME(pwritev))(int fd,
1017                                           const struct iovec *iov,
1018                                           size_t count,
1019                                           _SYSIO_OFF_T offset)
1020 {
1021         struct file *fil;
1022         struct intnl_xtvec xtvector;
1023         struct ioctx *ioctx;
1024         int     err;
1025         ssize_t cc;
1026         SYSIO_INTERFACE_DISPLAY_BLOCK;
1027
1028         SYSIO_INTERFACE_ENTER;
1029         fil = _sysio_fd_find(fd);
1030         if (!fil)
1031                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
1032
1033         err =
1034             _sysio_ipiov(IIOXOP_WRITE(fil->f_ino),
1035                          fil,
1036                          iov, count, NULL,
1037                          offset,
1038                          &xtvector, NULL,
1039                          &ioctx);
1040         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
1041                 err = (int )cc;
1042
1043         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
1044 }
1045
1046 #ifdef _LARGEFILE64_SOURCE
1047 #undef pwrite64v
1048 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pwritev)),
1049                      SYSIO_INTERFACE_NAME(pwrite64v))
1050 #endif
1051
1052 ssize_t
1053 SYSIO_INTERFACE_NAME(pwritev)(int fd,
1054                               const struct iovec *iov,
1055                               size_t count,
1056                               off_t offset)
1057 {
1058
1059         return PREPEND(_, SYSIO_INTERFACE_NAME(pwritev))(fd,
1060                                                          iov,
1061                                                          count,
1062                                                          offset);
1063 }
1064
1065 static ioid_t
1066 PREPEND(_, SYSIO_INTERFACE_NAME(ipwrite))(int fd,
1067                                           const void *buf,
1068                                           size_t count,
1069                                           _SYSIO_OFF_T offset)
1070 {
1071         struct file *fil;
1072         struct intnl_xtvec *xtv;
1073         struct iovec *iov;
1074         struct ioctx *ioctx;
1075         int     err;
1076         SYSIO_INTERFACE_DISPLAY_BLOCK;
1077
1078         SYSIO_INTERFACE_ENTER;
1079         fil = _sysio_fd_find(fd);
1080         if (!fil)
1081                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
1082
1083         xtv = malloc(sizeof(struct intnl_xtvec));
1084         iov = malloc(sizeof(struct iovec));
1085         if (!(xtv && iov)) {
1086                 err = -errno;
1087                 goto error;
1088         }
1089         xtv->xtv_off = offset;
1090         iov->iov_base = (void *)buf;
1091         xtv->xtv_len = iov->iov_len = count;
1092         err =
1093             _sysio_ipiov(IIOXOP_WRITE(fil->f_ino),
1094                          fil,
1095                          iov, 1, free_iov,
1096                          offset,
1097                          xtv, free_xtv,
1098                          &ioctx);
1099 error:
1100         if (err) {
1101                 if (iov)
1102                         free(iov);
1103                 if (xtv)
1104                         free(xtv);
1105                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
1106         }
1107         SYSIO_INTERFACE_RETURN(ioctx, 0);
1108 }
1109
1110 #ifdef _LARGEFILE64_SOURCE
1111 #undef ipwrite64
1112 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(ipwrite)),
1113                      SYSIO_INTERFACE_NAME(ipwrite64))
1114 #endif
1115
1116 ioid_t
1117 SYSIO_INTERFACE_NAME(ipwrite)(int fd,
1118                               const void *buf,
1119                               size_t count,
1120                               off_t offset)
1121 {
1122
1123         return PREPEND(_, SYSIO_INTERFACE_NAME(ipwrite))(fd,
1124                                                          buf,
1125                                                          count,
1126                                                          offset);
1127 }
1128
1129 ssize_t
1130 PREPEND(_, SYSIO_INTERFACE_NAME(pwrite))(int fd,
1131                                          const void *buf,
1132                                          size_t count,
1133                                          _SYSIO_OFF_T offset)
1134 {
1135         struct file *fil;
1136         struct intnl_xtvec xtvec;
1137         struct iovec iovec;
1138         struct ioctx *ioctx;
1139         int     err;
1140         ssize_t cc;
1141         SYSIO_INTERFACE_DISPLAY_BLOCK;
1142
1143         SYSIO_INTERFACE_ENTER;
1144         fil = _sysio_fd_find(fd);
1145         if (!fil)
1146                 SYSIO_INTERFACE_RETURN(-1, -EBADF);
1147
1148         xtvec.xtv_off = offset;
1149         iovec.iov_base = (void *)buf;
1150         xtvec.xtv_len = iovec.iov_len = count;
1151         err =
1152             _sysio_ipiov(IIOXOP_WRITE(fil->f_ino),
1153                          fil,
1154                          &iovec, 1, NULL,
1155                          offset,
1156                          &xtvec, NULL,
1157                          &ioctx);
1158         if (!err && (cc = _sysio_ioctx_wait(ioctx)) < 0)
1159                 err = (int )cc;
1160
1161         SYSIO_INTERFACE_RETURN(err ? -1 : cc, err);
1162 }
1163
1164 #ifdef _LARGEFILE64_SOURCE
1165 #undef pwrite64
1166 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pwrite)),
1167                      SYSIO_INTERFACE_NAME(pwrite64))
1168 #ifdef __GLIBC
1169 #undef __pwrite64
1170 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pwrite)),
1171                      PREPEND(__, SYSIO_INTERFACE_NAME(pwrite64)))
1172 #undef __libc_pwrite64
1173 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(pwrite)),
1174                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_pwrite64)))
1175 #endif
1176 #endif
1177
1178 ssize_t
1179 SYSIO_INTERFACE_NAME(pwrite)(int fd,
1180                              const void *buf,
1181                              size_t count,
1182                              off_t offset)
1183 {
1184
1185         return PREPEND(_, SYSIO_INTERFACE_NAME(pwrite))(fd,
1186                                                         buf,
1187                                                         count,
1188                                                         offset);
1189 }
1190
1191 #ifdef __GLIBC
1192 #undef __libc_pwrite
1193 sysio_sym_weak_alias(SYSIO_INTERFACE_NAME(pwrite), __libc_pwrite)
1194                      PREPEND(__, SYSIO_INTERFACE_NAME(libc_pwrite)))
1195 #endif
1196
1197 static ioid_t
1198 PREPEND(_, SYSIO_INTERFACE_NAME(iwritex))(int fd,
1199                                           const struct iovec *iov,
1200                                           size_t iov_count,
1201                                           const struct intnl_xtvec *xtv,
1202                                           size_t xtv_count)
1203 {
1204         struct file *fil;
1205         int     err;
1206         struct ioctx *ioctx;
1207         SYSIO_INTERFACE_DISPLAY_BLOCK;
1208
1209         SYSIO_INTERFACE_ENTER;
1210         fil = _sysio_fd_find(fd);
1211         if (!(fil && xtv_count))
1212                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
1213
1214         err =
1215             _sysio_iiox(IIOXOP_WRITE(fil->f_ino),
1216                         fil,
1217                         iov, iov_count, NULL,
1218                         xtv, xtv_count, NULL,
1219                         NULL,
1220                         &ioctx);
1221
1222         SYSIO_INTERFACE_RETURN(err ? IOID_FAIL : ioctx, err);
1223 }
1224
1225 #ifdef _LARGEFILE64_SOURCE
1226 #undef iwrite64x
1227 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(iwritex)),
1228                      SYSIO_INTERFACE_NAME(iwrite64x))
1229 #endif
1230
1231 #ifdef _LARGEFILE64_SOURCE
1232 ioid_t
1233 SYSIO_INTERFACE_NAME(iwritex)(int fd,
1234                               const struct iovec *iov, size_t iov_count,
1235                               const struct xtvec *xtv, size_t xtv_count)
1236 {
1237         struct file *fil;
1238         struct intnl_xtvec *ixtv, *ixtvent;
1239         size_t  count;
1240         int     err;
1241         struct ioctx *ioctx;
1242         SYSIO_INTERFACE_DISPLAY_BLOCK;
1243
1244         SYSIO_INTERFACE_ENTER;
1245         fil = _sysio_fd_find(fd);
1246         if (!fil)
1247                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EBADF);
1248
1249         /* Perform a check on the iov_count and xtv_count */
1250         if ((iov_count == 0) || (xtv_count == 0))
1251                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -EINVAL);
1252
1253         ixtv = ixtvent = malloc(xtv_count * sizeof(struct intnl_xtvec));
1254         if (!ixtv)
1255                 SYSIO_INTERFACE_RETURN(IOID_FAIL, -ENOMEM);
1256
1257         count = xtv_count;
1258         while (count--) {
1259                 ixtvent->xtv_off = xtv->xtv_off;
1260                 ixtvent->xtv_len = xtv->xtv_len;
1261                 ixtvent++;
1262                 xtv++;
1263         }
1264
1265         err =
1266             _sysio_iiox(IIOXOP_WRITE(fil->f_ino),
1267                         fil,
1268                         iov, iov_count, NULL,
1269                         ixtv, xtv_count, free_xtv,
1270                         NULL,
1271                         &ioctx);
1272         if (err) {
1273                 free(ixtv);
1274                 SYSIO_INTERFACE_RETURN(IOID_FAIL, err);
1275         }
1276         SYSIO_INTERFACE_RETURN(ioctx, 0);
1277 }
1278 #else
1279 #undef iwritex
1280 sysio_sym_weak_alias(PREPEND(_, SYSIO_INTERFACE_NAME(iwritex)),
1281                      SYSIO_INTERFACE_NAME(iwritex))
1282 #endif
1283
1284 #undef writex
1285 ssize_t
1286 SYSIO_INTERFACE_NAME(writex)(int fd,
1287                              const struct iovec *iov, size_t iov_count,
1288                              const struct xtvec *xtv, size_t xtv_count)
1289 {
1290         ioid_t  ioid;
1291
1292         if ((ioid =
1293              SYSIO_INTERFACE_NAME(iwritex)(fd,
1294                                            iov,
1295                                            iov_count,
1296                                            xtv,
1297                                            xtv_count)) == IOID_FAIL)
1298                 return -1;
1299         return SYSIO_INTERFACE_NAME(iowait)(ioid);
1300 }
1301
1302 #ifdef _LARGEFILE64_SOURCE
1303 #undef write64x
1304 ssize_t
1305 SYSIO_INTERFACE_NAME(write64x)(int fd,
1306          const struct iovec *iov, size_t iov_count,
1307          const struct xtvec64 *xtv, size_t xtv_count)
1308 {
1309         ioid_t  ioid;
1310
1311         if ((ioid = SYSIO_INTERFACE_NAME(iwrite64x)(fd,
1312                                                     iov,
1313                                                     iov_count,
1314                                                     xtv,
1315                                                     xtv_count)) == IOID_FAIL)
1316                 return -1;
1317         return SYSIO_INTERFACE_NAME(iowait)(ioid);
1318 }
1319 #endif
1320
1321 #ifdef notdef
1322 int
1323 write_list(int fd,
1324            int mem_list_count,
1325            char *mem_offsets[],
1326            int mem_lengths[],
1327            int file_list_count,
1328            int64_t file_offsets[],
1329            int32_t file_lengths[])
1330 {
1331         SYSIO_INTERFACE_DISPLAY_BLOCK;
1332
1333         SYSIO_INTERFACE_ENTER;
1334         SYSIO_INTERFACE_RETURN(-1, -ENOSYS);
1335 }
1336 #endif