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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.271 by root, Fri Dec 28 12:43:00 2018 UTC vs.
Revision 1.282 by root, Wed Feb 26 15:49:25 2020 UTC

… …
117 117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES 118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h> 119# include <sys/mman.h>
120#endif 120#endif
121 121
122#if HAVE_SYS_UIO_H
123# include <sys/uio.h>
124#endif
125
122#if HAVE_ST_XTIMENSEC 126#if HAVE_ST_XTIMENSEC
123# define ATIMENSEC PL_statcache.st_atimensec 127# define ATIMENSEC PL_statcache.st_atimensec
124# define MTIMENSEC PL_statcache.st_mtimensec 128# define MTIMENSEC PL_statcache.st_mtimensec
125# define CTIMENSEC PL_statcache.st_ctimensec 129# define CTIMENSEC PL_statcache.st_ctimensec
126#elif HAVE_ST_XTIMESPEC 130#elif HAVE_ST_XTIMESPEC
… …
289}; 293};
290 294
291/*****************************************************************************/ 295/*****************************************************************************/
292 296
293/* helper: set scalar to foreign ptr with custom free */ 297/* helper: set scalar to foreign ptr with custom free */
298ecb_noinline
294static void 299static void
295sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length) 300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
296{ 301{
297 sv_force_normal (sv); 302 sv_force_normal (sv);
298 303
… …
425 430
426/*****************************************************************************/ 431/*****************************************************************************/
427 432
428static int close_fd; /* dummy fd to close fds via dup2 */ 433static int close_fd; /* dummy fd to close fds via dup2 */
429 434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
430enum { 444enum {
431 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
432}; 446};
433 447
434typedef eio_req *aio_req; 448typedef eio_req *aio_req;
… …
457 /* read any signals sent by the worker threads */ 471 /* read any signals sent by the worker threads */
458 s_epipe_drain (&respipe); 472 s_epipe_drain (&respipe);
459} 473}
460 474
461/* must be called at most once */ 475/* must be called at most once */
476ecb_noinline
462static SV * 477static SV *
463req_sv (aio_req req, HV *stash) 478req_sv (aio_req req, HV *stash)
464{ 479{
465 if (!req->self) 480 if (!req->self)
466 { 481 {
… …
475newSVaio_wd (aio_wd wd) 490newSVaio_wd (aio_wd wd)
476{ 491{
477 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash); 492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
478} 493}
479 494
495ecb_noinline
480static aio_req 496static aio_req
481SvAIO_REQ (SV *sv) 497SvAIO_REQ (SV *sv)
482{ 498{
483 MAGIC *mg; 499 MAGIC *mg;
484 500
… …
547 FREETMPS; 563 FREETMPS;
548 LEAVE; 564 LEAVE;
549 } 565 }
550} 566}
551 567
568ecb_noinline
552static void 569static void
553req_submit (eio_req *req) 570req_submit (eio_req *req)
554{ 571{
555 eio_submit (req); 572 eio_submit (req);
556 573
… …
817 } 834 }
818 else 835 else
819 PUSHs (sv_result); 836 PUSHs (sv_result);
820 break; 837 break;
821 838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
822 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
823 if (req->result > 0) 846 if (req->result > 0)
824 SvIV_set (sv_result, 0); 847 SvIV_set (sv_result, 0);
825 /* FALLTHROUGH */ 848 /* FALLTHROUGH */
826 849
… …
877 grp->sv2 = 0; 900 grp->sv2 = 0;
878 901
879 eio_grp_cancel (grp); 902 eio_grp_cancel (grp);
880} 903}
881 904
882static void ecb_cold 905ecb_cold
906static void
883create_respipe (void) 907create_respipe (void)
884{ 908{
885 if (s_epipe_renew (&respipe)) 909 if (s_epipe_renew (&respipe))
886 croak ("IO::AIO: unable to initialize result pipe"); 910 croak ("IO::AIO: unable to initialize result pipe");
887} 911}
… …
921 945
922 poll_wait (); 946 poll_wait ();
923 } 947 }
924} 948}
925 949
926static void ecb_cold 950ecb_cold
951static void
927reinit (void) 952reinit (void)
928{ 953{
929 create_respipe (); 954 create_respipe ();
930 955
931 if (eio_init (want_poll, done_poll) < 0) 956 if (eio_init (want_poll, done_poll) < 0)
… …
939{ 964{
940 SvGETMAGIC (cb_sv); 965 SvGETMAGIC (cb_sv);
941 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
942} 967}
943 968
969ecb_noinline
944static aio_req ecb_noinline 970static aio_req ecb_noinline
945dreq (SV *callback) 971dreq (SV *callback)
946{ 972{
947 SV *cb_cv; 973 SV *cb_cv;
948 aio_req req; 974 aio_req req;
… …
970 SPAGAIN; \ 996 SPAGAIN; \
971 \ 997 \
972 if (GIMME_V != G_VOID) \ 998 if (GIMME_V != G_VOID) \
973 XPUSHs (req_sv (req, aio_req_stash)); 999 XPUSHs (req_sv (req, aio_req_stash));
974 1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
975ecb_inline void 1002ecb_inline
1003void
976req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) 1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
977{ 1005{
978 if (expect_false (SvROK (path))) 1006 if (expect_false (SvROK (path)))
979 { 1007 {
980 SV *rv = SvRV (path); 1008 SV *rv = SvRV (path);
981 SV *wdob; 1009 SV *wdob;
… …
1006 1034
1007 *pathsv = newSVsv (path); 1035 *pathsv = newSVsv (path);
1008 *ptr = SvPVbyte_nolen (*pathsv); 1036 *ptr = SvPVbyte_nolen (*pathsv);
1009} 1037}
1010 1038
1011static void ecb_noinline 1039ecb_noinline
1040static void
1012req_set_path1 (aio_req req, SV *path) 1041req_set_path1 (aio_req req, SV *path)
1013{ 1042{
1014 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); 1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1015} 1044}
1016 1045
1017static void ecb_noinline 1046ecb_noinline
1047static void
1018req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) 1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1019{ 1049{
1020 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; 1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1021 1051
1022 switch (SvTYPE (rv)) 1052 switch (SvTYPE (rv))
… …
1165 const_iv (MAP_STACK) 1195 const_iv (MAP_STACK)
1166 1196
1167 const_iv (MREMAP_MAYMOVE) 1197 const_iv (MREMAP_MAYMOVE)
1168 const_iv (MREMAP_FIXED) 1198 const_iv (MREMAP_FIXED)
1169 1199
1170 const_iv (F_DUPFD_CLOEXEC)
1171
1172 const_iv (MSG_CMSG_CLOEXEC) 1200 const_iv (MSG_CMSG_CLOEXEC)
1173 const_iv (SOCK_CLOEXEC) 1201 const_iv (SOCK_CLOEXEC)
1202
1203 const_iv (F_DUPFD_CLOEXEC)
1204
1205 const_iv (F_ADD_SEALS)
1206 const_iv (F_GET_SEALS)
1207 const_iv (F_SEAL_SEAL)
1208 const_iv (F_SEAL_SHRINK)
1209 const_iv (F_SEAL_GROW)
1210 const_iv (F_SEAL_WRITE)
1174 1211
1175 const_iv (F_OFD_GETLK) 1212 const_iv (F_OFD_GETLK)
1176 const_iv (F_OFD_SETLK) 1213 const_iv (F_OFD_SETLK)
1177 const_iv (F_OFD_GETLKW) 1214 const_iv (F_OFD_GETLKW)
1178 1215
… …
1255 1292
1256 const_iv (EFD_CLOEXEC) 1293 const_iv (EFD_CLOEXEC)
1257 const_iv (EFD_NONBLOCK) 1294 const_iv (EFD_NONBLOCK)
1258 const_iv (EFD_SEMAPHORE) 1295 const_iv (EFD_SEMAPHORE)
1259 1296
1297 const_iv (MFD_CLOEXEC)
1298 const_iv (MFD_ALLOW_SEALING)
1299 const_iv (MFD_HUGETLB)
1300
1260 const_iv (CLOCK_REALTIME) 1301 const_iv (CLOCK_REALTIME)
1261 const_iv (CLOCK_MONOTONIC) 1302 const_iv (CLOCK_MONOTONIC)
1262 const_iv (CLOCK_BOOTTIME) 1303 const_iv (CLOCK_BOOTTIME)
1263 const_iv (CLOCK_REALTIME_ALARM) 1304 const_iv (CLOCK_REALTIME_ALARM)
1264 const_iv (CLOCK_BOOTTIME_ALARM) 1305 const_iv (CLOCK_BOOTTIME_ALARM)
… …
1266 const_iv (TFD_NONBLOCK) 1307 const_iv (TFD_NONBLOCK)
1267 const_iv (TFD_CLOEXEC) 1308 const_iv (TFD_CLOEXEC)
1268 1309
1269 const_iv (TFD_TIMER_ABSTIME) 1310 const_iv (TFD_TIMER_ABSTIME)
1270 const_iv (TFD_TIMER_CANCEL_ON_SET) 1311 const_iv (TFD_TIMER_CANCEL_ON_SET)
1312
1313 const_iv (STATX_TYPE)
1314 const_iv (STATX_MODE)
1315 const_iv (STATX_NLINK)
1316 const_iv (STATX_UID)
1317 const_iv (STATX_GID)
1318 const_iv (STATX_ATIME)
1319 const_iv (STATX_MTIME)
1320 const_iv (STATX_CTIME)
1321 const_iv (STATX_INO)
1322 const_iv (STATX_SIZE)
1323 const_iv (STATX_BLOCKS)
1324 const_iv (STATX_BASIC_STATS)
1325 const_iv (STATX_ALL)
1326 const_iv (STATX_BTIME)
1327 const_iv (STATX_ATTR_COMPRESSED)
1328 const_iv (STATX_ATTR_IMMUTABLE)
1329 const_iv (STATX_ATTR_APPEND)
1330 const_iv (STATX_ATTR_NODUMP)
1331 const_iv (STATX_ATTR_ENCRYPTED)
1332 const_iv (STATX_ATTR_AUTOMOUNT)
1271 1333
1272 /* these are libeio constants, and are independent of gendef0 */ 1334 /* these are libeio constants, and are independent of gendef0 */
1273 const_eio (SEEK_SET) 1335 const_eio (SEEK_SET)
1274 const_eio (SEEK_CUR) 1336 const_eio (SEEK_CUR)
1275 const_eio (SEEK_END) 1337 const_eio (SEEK_END)
… …
1472 1534
1473void 1535void
1474aio_close (SV *fh, SV *callback = &PL_sv_undef) 1536aio_close (SV *fh, SV *callback = &PL_sv_undef)
1475 PPCODE: 1537 PPCODE:
1476{ 1538{
1539 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1540 dREQ;
1478 int fd = s_fileno_croak (fh, 0); 1541#if 0
1479
1480 /* partially duplicate logic in s_fileno */ 1542 /* partially duplicate logic in s_fileno */
1481 SvGETMAGIC (fh); 1543 SvGETMAGIC (fh);
1482 1544
1483 if (SvROK (fh)) 1545 if (SvROK (fh))
1484 { 1546 {
… …
1492 PerlIOUnix_refcnt_inc (fd); 1554 PerlIOUnix_refcnt_inc (fd);
1493 do_close ((GV *)fh, 1); 1555 do_close ((GV *)fh, 1);
1494 1556
1495 req->type = EIO_CLOSE; 1557 req->type = EIO_CLOSE;
1496 req->int1 = fd; 1558 req->int1 = fd;
1497 req->sv2 = newSVsv (fh); 1559 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1498 } 1560 }
1499 else 1561 else
1562#endif
1500 { 1563 {
1501 /* fd number */ 1564 /* fd number */
1502 req->type = EIO_DUP2; 1565 req->type = EIO_DUP2;
1503 req->int1 = close_fd; 1566 req->int1 = close_fd;
1504 req->sv2 = newSVsv (fh); 1567 req->sv2 = newSVsv (fh);
… …
1841 eio_wd wd2 = 0; 1904 eio_wd wd2 = 0;
1842 dREQ; 1905 dREQ;
1843 1906
1844 req->type = ix; 1907 req->type = ix;
1845 req_set_path1 (req, oldpath); 1908 req_set_path1 (req, oldpath);
1846 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1909 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1847 req->int3 = (long)wd2; 1910 req->int3 = (long)wd2;
1848 1911
1849 REQ_SEND; 1912 REQ_SEND;
1850} 1913}
1851 1914
… …
1856 eio_wd wd2 = 0; 1919 eio_wd wd2 = 0;
1857 dREQ; 1920 dREQ;
1858 1921
1859 req->type = EIO_RENAME; 1922 req->type = EIO_RENAME;
1860 req_set_path1 (req, oldpath); 1923 req_set_path1 (req, oldpath);
1861 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1924 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1862 req->int2 = flags; 1925 req->int2 = flags;
1863 req->int3 = (long)wd2; 1926 req->int3 = (long)wd2;
1864 1927
1865 REQ_SEND; 1928 REQ_SEND;
1866} 1929}
… …
2288#endif 2351#endif
2289 OUTPUT: 2352 OUTPUT:
2290 RETVAL 2353 RETVAL
2291 2354
2292int 2355int
2356statx (SV8 *pathname, int flags, UV mask)
2357 CODE:
2358{
2359 /* undocumented, and might go away, and anyway, should use eio_statx */
2360 SV *wdsv = 0;
2361 SV *pathsv = 0;
2362 eio_wd wd = EIO_CWD;
2363 void *ptr;
2364 int res;
2365
2366 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2367 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2368
2369 SvREFCNT_dec (pathsv);
2370 SvREFCNT_dec (wdsv);
2371}
2372 OUTPUT:
2373 RETVAL
2374
2375U32
2376stx_mode ()
2377 PROTOTYPE:
2378 CODE:
2379#if HAVE_STATX
2380 RETVAL = stx.stx_mode;
2381#else
2382 XSRETURN_UNDEF;
2383#endif
2384 OUTPUT:
2385 RETVAL
2386
2387#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2388#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2389#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2390#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2391#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2392#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2393#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2394#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2395#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2396#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2397#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2398#define STATX_OFFSET_size statx_offsetof (stx_size)
2399#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2400#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2401#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2402#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2403#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2404#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2405
2406U32
2407stx_mask ()
2408 PROTOTYPE:
2409 ALIAS:
2410 stx_mask = STATX_OFFSET_mask
2411 stx_blksize = STATX_OFFSET_blksize
2412 stx_nlink = STATX_OFFSET_nlink
2413 stx_uid = STATX_OFFSET_uid
2414 stx_gid = STATX_OFFSET_gid
2415 stx_rdev_major = STATX_OFFSET_rdev_major
2416 stx_rdev_minor = STATX_OFFSET_rdev_minor
2417 stx_dev_major = STATX_OFFSET_dev_major
2418 stx_dev_minor = STATX_OFFSET_dev_minor
2419 CODE:
2420#if HAVE_STATX
2421 RETVAL = *(__u32 *)((char *)&stx + ix);
2422#else
2423 XSRETURN_UNDEF;
2424#endif
2425 OUTPUT:
2426 RETVAL
2427
2428VAL64
2429stx_attributes ()
2430 PROTOTYPE:
2431 ALIAS:
2432 stx_attributes = STATX_OFFSET_attributes
2433 stx_ino = STATX_OFFSET_ino
2434 stx_size = STATX_OFFSET_size
2435 stx_blocks = STATX_OFFSET_blocks
2436 stx_attributes_mask = STATX_OFFSET_attributes_mask
2437 CODE:
2438#if HAVE_STATX
2439 RETVAL = *(__u64 *)((char *)&stx + ix);
2440#else
2441 XSRETURN_UNDEF;
2442#endif
2443 OUTPUT:
2444 RETVAL
2445
2446NV
2447stx_atime ()
2448 PROTOTYPE:
2449 ALIAS:
2450 stx_atime = STATX_OFFSET_atime
2451 stx_btime = STATX_OFFSET_btime
2452 stx_ctime = STATX_OFFSET_ctime
2453 stx_mtime = STATX_OFFSET_mtime
2454 CODE:
2455#if HAVE_STATX
2456 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2457 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2458#else
2459 XSRETURN_UNDEF;
2460#endif
2461 OUTPUT:
2462 RETVAL
2463
2464VAL64
2465stx_atimesec ()
2466 PROTOTYPE:
2467 ALIAS:
2468 stx_atimesec = STATX_OFFSET_atime
2469 stx_btimesec = STATX_OFFSET_btime
2470 stx_ctimesec = STATX_OFFSET_ctime
2471 stx_mtimesec = STATX_OFFSET_mtime
2472 CODE:
2473#if HAVE_STATX
2474 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2475 RETVAL = ts->tv_sec;
2476#else
2477 XSRETURN_UNDEF;
2478#endif
2479 OUTPUT:
2480 RETVAL
2481
2482U32
2483stx_atimensec ()
2484 PROTOTYPE:
2485 ALIAS:
2486 stx_atimensec = STATX_OFFSET_atime
2487 stx_btimensec = STATX_OFFSET_btime
2488 stx_ctimensec = STATX_OFFSET_ctime
2489 stx_mtimensec = STATX_OFFSET_mtime
2490 CODE:
2491#if HAVE_STATX
2492 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2493 RETVAL = ts->tv_nsec;
2494#else
2495 RETVAL = 0;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500void
2501accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2502 PPCODE:
2503{
2504 SV *retval;
2505#if HAVE_ACCEPT4
2506 socklen_t salen_ = salen ? salen + 1 : 0;
2507
2508 if (salen)
2509 {
2510 sv_upgrade (sockaddr, SVt_PV);
2511 sv_grow (sockaddr, salen_);
2512 }
2513
2514 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2515
2516 retval = newmortalFH (res, O_RDWR);
2517
2518 if (res >= 0 && salen > 0)
2519 {
2520 if (salen_ > salen + 1)
2521 salen_ = salen + 1;
2522
2523 SvPOK_only (sockaddr);
2524 SvCUR_set (sockaddr, salen_);
2525 }
2526#else
2527 errno = ENOSYS;
2528 retval = &PL_sv_undef;
2529#endif
2530 XPUSHs (retval);
2531}
2532
2533ssize_t
2293splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags) 2534splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2294 CODE: 2535 CODE:
2295{ 2536{
2296#if HAVE_LINUX_SPLICE 2537#if HAVE_LINUX_SPLICE
2297 loff_t off_in_, off_out_; 2538 loff_t off_in_, off_out_;
… …
2305#endif 2546#endif
2306} 2547}
2307 OUTPUT: 2548 OUTPUT:
2308 RETVAL 2549 RETVAL
2309 2550
2310int 2551ssize_t
2311tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags) 2552tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2312 CODE: 2553 CODE:
2313#if HAVE_LINUX_SPLICE 2554#if HAVE_LINUX_SPLICE
2314 RETVAL = tee (rfh, wfh, length, flags); 2555 RETVAL = tee (rfh, wfh, length, flags);
2315#else 2556#else
… …
2430#else 2671#else
2431 errno = ENOSYS; 2672 errno = ENOSYS;
2432#endif 2673#endif
2433} 2674}
2434 2675
2676void
2677memfd_create (SV8 *pathname, int flags = 0)
2678 PPCODE:
2679{
2680 int fd;
2681#if HAVE_MEMFD_CREATE
2682 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2683#else
2684 fd = (errno = ENOSYS, -1);
2685#endif
2686
2687 XPUSHs (newmortalFH (fd, O_RDWR));
2688}
2689
2435UV 2690UV
2436get_fdlimit () 2691get_fdlimit ()
2437 CODE: 2692 CODE:
2438#if HAVE_RLIMITS 2693#if HAVE_RLIMITS
2439 struct rlimit rl; 2694 struct rlimit rl;
… …
2472 if (0 == setrlimit (RLIMIT_NOFILE, &rl)) 2727 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2473 XSRETURN_YES; 2728 XSRETURN_YES;
2474 2729
2475 if (errno == EPERM) 2730 if (errno == EPERM)
2476 { 2731 {
2477 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ 2732 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2478 /* our limit overflows a system-wide limit */ 2733 /* our limit overflows a system-wide limit */
2479 /* try an adaptive algorithm, but do not lower the hardlimit */ 2734 /* try an adaptive algorithm, but do not lower the hardlimit */
2480 rl.rlim_max = 0; 2735 rl.rlim_max = 0;
2481 for (bit = 0x40000000U; bit; bit >>= 1) 2736 for (bit = 0x40000000U; bit; bit >>= 1)
2482 { 2737 {
2483 rl.rlim_max |= bit; 2738 rl.rlim_max |= bit;
2484 rl.rlim_cur = rl.rlim_max; 2739 rl.rlim_cur = rl.rlim_max;
2485 2740
2486 /* nevr decrease the hard limit */ 2741 /* never decrease the hard limit */
2487 if (rl.rlim_max < orig_rlim_max) 2742 if (rl.rlim_max < orig_rlim_max)
2488 break; 2743 break;
2489 2744
2490 if (0 != setrlimit (RLIMIT_NOFILE, &rl)) 2745 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2491 rl.rlim_max &= ~bit; /* too high, remove bit again */ 2746 rl.rlim_max &= ~bit; /* too high, remove bit again */

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