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/cvs/IO-AIO/AIO.xs
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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.280 by root, Tue Sep 10 02:16:41 2019 UTC vs.
Revision 1.285 by root, Tue Dec 29 15:16:28 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 (MOVE_MOUNT_F_SYMLINKS)
1356 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1357 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1358 const_iv (MOVE_MOUNT_T_SYMLINKS)
1359 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1360 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1361
1334 /* these are libeio constants, and are independent of gendef0 */ 1362 /* these are libeio constants, and are independent of gendef0 */
1335 const_eio (SEEK_SET) 1363 const_eio (SEEK_SET)
1336 const_eio (SEEK_CUR) 1364 const_eio (SEEK_CUR)
1337 const_eio (SEEK_END) 1365 const_eio (SEEK_END)
1338 1366
… …
2599 PUSHs (newmortalFH (fd[1], O_WRONLY)); 2627 PUSHs (newmortalFH (fd[1], O_WRONLY));
2600 } 2628 }
2601} 2629}
2602 2630
2603void 2631void
2632pidfd_open (int pid, unsigned int flags = 0)
2633 PPCODE:
2634{
2635 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2636 int fd = syscall (SYS_pidfd_open, pid, flags);
2637 XPUSHs (newmortalFH (fd, O_RDWR));
2638}
2639
2640int
2641pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2642 PPCODE:
2643{
2644 int res;
2645 siginfo_t si = { 0 };
2646
2647 if (SvOK (siginfo))
2648 {
2649 HV *hv;
2650 SV **svp;
2651
2652 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2653 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2654
2655 hv = (HV *)SvRV (siginfo);
2656
2657 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2658 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2659 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2660 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2661 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2662 }
2663
2664 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2665 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2666
2667 XPUSHs (sv_2mortal (newSViv (res)));
2668}
2669
2670void
2671pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2672 PPCODE:
2673{
2674 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2675 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2676 XPUSHs (newmortalFH (fd, O_RDWR));
2677}
2678
2679void
2604eventfd (unsigned int initval = 0, int flags = 0) 2680eventfd (unsigned int initval = 0, int flags = 0)
2605 PPCODE: 2681 PPCODE:
2606{ 2682{
2607 int fd; 2683 int fd;
2608#if HAVE_EVENTFD 2684#if HAVE_EVENTFD
… …
2727 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2803 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2728 XSRETURN_YES; 2804 XSRETURN_YES;
2729 2805
2730 if (errno == EPERM) 2806 if (errno == EPERM)
2731 { 2807 {
2732 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ 2808 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2733 /* our limit overflows a system-wide limit */ 2809 /* our limit overflows a system-wide limit */
2734 /* try an adaptive algorithm, but do not lower the hardlimit */ 2810 /* try an adaptive algorithm, but do not lower the hardlimit */
2735 rl.rlim_max = 0; 2811 rl.rlim_max = 0;
2736 for (bit = 0x40000000U; bit; bit >>= 1) 2812 for (bit = 0x40000000U; bit; bit >>= 1)
2737 { 2813 {
2738 rl.rlim_max |= bit; 2814 rl.rlim_max |= bit;
2739 rl.rlim_cur = rl.rlim_max; 2815 rl.rlim_cur = rl.rlim_max;
2740 2816
2741 /* nevr decrease the hard limit */ 2817 /* never decrease the hard limit */
2742 if (rl.rlim_max < orig_rlim_max) 2818 if (rl.rlim_max < orig_rlim_max)
2743 break; 2819 break;
2744 2820
2745 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2821 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2746 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2822 rl.rlim_max &= ~bit; /* too high, remove bit again */

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