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/cvs/IO-AIO/AIO.xs
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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.279 by root, Fri Sep 6 22:03:45 2019 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

… …
226 226
227#if PAGESIZE <= 0 227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE) 228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif 229#endif
230 230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
233#else
234# define syscall(nr,...) (errno = ENOSYS, -1)
235#endif
236
231/*****************************************************************************/ 237/*****************************************************************************/
232 238
233#if !_POSIX_MAPPED_FILES 239#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1) 240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS () 241# define munmap(addr,length) EIO_ENOSYS ()
… …
344 int count = req->int3; 350 int count = req->int3;
345 351
346 req->flags |= EIO_FLAG_PTR1_FREE; 352 req->flags |= EIO_FLAG_PTR1_FREE;
347 353
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */ 354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */ 355 /* increase in fixed steps */
350 if (count < 0) 356 if (count < 0)
351 count = 8; 357 count = 8;
352 358
353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count); 359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM; 360 errno = ENOMEM;
… …
407 413
408 for (count = 0; count < incmap->fm_mapped_extents; ++count) 414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
409 { 415 {
410 struct fiemap_extent *e = incmap->fm_extents + count; 416 struct fiemap_extent *e = incmap->fm_extents + count;
411 417
418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
419
412 if (e->fe_logical + e->fe_length >= end_offset) 420 if (e->fe_logical >= end_offset)
413 goto done; 421 goto done;
414
415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
416 422
417 if (e->fe_flags & FIEMAP_EXTENT_LAST) 423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done; 424 goto done;
419 425
420 } 426 }
… …
1329 const_iv (STATX_ATTR_APPEND) 1335 const_iv (STATX_ATTR_APPEND)
1330 const_iv (STATX_ATTR_NODUMP) 1336 const_iv (STATX_ATTR_NODUMP)
1331 const_iv (STATX_ATTR_ENCRYPTED) 1337 const_iv (STATX_ATTR_ENCRYPTED)
1332 const_iv (STATX_ATTR_AUTOMOUNT) 1338 const_iv (STATX_ATTR_AUTOMOUNT)
1333 1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (FSOPEN_CLOEXEC)
1356
1357 const_iv (FSPICK_CLOEXEC)
1358 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1359 const_iv (FSPICK_NO_AUTOMOUNT)
1360 const_iv (FSPICK_EMPTY_PATH)
1361
1362 const_iv (MOVE_MOUNT_F_SYMLINKS)
1363 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1364 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1365 const_iv (MOVE_MOUNT_T_SYMLINKS)
1366 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1367 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1368
1334 /* these are libeio constants, and are independent of gendef0 */ 1369 /* these are libeio constants, and are independent of gendef0 */
1335 const_eio (SEEK_SET) 1370 const_eio (SEEK_SET)
1336 const_eio (SEEK_CUR) 1371 const_eio (SEEK_CUR)
1337 const_eio (SEEK_END) 1372 const_eio (SEEK_END)
1338 1373
… …
2528 retval = &PL_sv_undef; 2563 retval = &PL_sv_undef;
2529#endif 2564#endif
2530 XPUSHs (retval); 2565 XPUSHs (retval);
2531} 2566}
2532 2567
2533int 2568ssize_t
2534splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2569splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2535 CODE: 2570 CODE:
2536{ 2571{
2537#if HAVE_LINUX_SPLICE 2572#if HAVE_LINUX_SPLICE
2538 loff_t off_in_, off_out_; 2573 loff_t off_in_, off_out_;
… …
2546#endif 2581#endif
2547} 2582}
2548 OUTPUT: 2583 OUTPUT:
2549 RETVAL 2584 RETVAL
2550 2585
2551int 2586ssize_t
2552tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags) 2587tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2553 CODE: 2588 CODE:
2554#if HAVE_LINUX_SPLICE 2589#if HAVE_LINUX_SPLICE
2555 RETVAL = tee (rfh, wfh, length, flags); 2590 RETVAL = tee (rfh, wfh, length, flags);
2556#else 2591#else
… …
2599 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2634 PUSHs (newmortalFH (fd[1], O_WRONLY));
2600 } 2635 }
2601} 2636}
2602 2637
2603void 2638void
2639pidfd_open (int pid, unsigned int flags = 0)
2640 PPCODE:
2641{
2642 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2643 int fd = syscall (SYS_pidfd_open, pid, flags);
2644 XPUSHs (newmortalFH (fd, O_RDWR));
2645}
2646
2647int
2648pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2649 PPCODE:
2650{
2651 int res;
2652 siginfo_t si = { 0 };
2653
2654 if (SvOK (siginfo))
2655 {
2656 HV *hv;
2657 SV **svp;
2658
2659 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2660 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2661
2662 hv = (HV *)SvRV (siginfo);
2663
2664 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2665 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2666 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2667 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2668 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2669 }
2670
2671 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2672 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2673
2674 XPUSHs (sv_2mortal (newSViv (res)));
2675}
2676
2677void
2678pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2679 PPCODE:
2680{
2681 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2682 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2683 XPUSHs (newmortalFH (fd, O_RDWR));
2684}
2685
2686void
2604eventfd (unsigned int initval = 0, int flags = 0) 2687eventfd (unsigned int initval = 0, int flags = 0)
2605 PPCODE: 2688 PPCODE:
2606{ 2689{
2607 int fd; 2690 int fd;
2608#if HAVE_EVENTFD 2691#if HAVE_EVENTFD
… …
2727 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2810 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2728 XSRETURN_YES; 2811 XSRETURN_YES;
2729 2812
2730 if (errno == EPERM) 2813 if (errno == EPERM)
2731 { 2814 {
2732 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ 2815 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2733 /* our limit overflows a system-wide limit */ 2816 /* our limit overflows a system-wide limit */
2734 /* try an adaptive algorithm, but do not lower the hardlimit */ 2817 /* try an adaptive algorithm, but do not lower the hardlimit */
2735 rl.rlim_max = 0; 2818 rl.rlim_max = 0;
2736 for (bit = 0x40000000U; bit; bit >>= 1) 2819 for (bit = 0x40000000U; bit; bit >>= 1)
2737 { 2820 {
2738 rl.rlim_max |= bit; 2821 rl.rlim_max |= bit;
2739 rl.rlim_cur = rl.rlim_max; 2822 rl.rlim_cur = rl.rlim_max;
2740 2823
2741 /* nevr decrease the hard limit */ 2824 /* never decrease the hard limit */
2742 if (rl.rlim_max < orig_rlim_max) 2825 if (rl.rlim_max < orig_rlim_max)
2743 break; 2826 break;
2744 2827
2745 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2828 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2746 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2829 rl.rlim_max &= ~bit; /* too high, remove bit again */

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