… | |
… | |
74 | #else |
74 | #else |
75 | |
75 | |
76 | # include "config.h" |
76 | # include "config.h" |
77 | # include <sys/time.h> |
77 | # include <sys/time.h> |
78 | # include <sys/select.h> |
78 | # include <sys/select.h> |
79 | # include <sys/mman.h> |
|
|
80 | # include <unistd.h> |
79 | # include <unistd.h> |
81 | # include <utime.h> |
80 | # include <utime.h> |
82 | # include <signal.h> |
81 | # include <signal.h> |
83 | # include <dirent.h> |
82 | # include <dirent.h> |
|
|
83 | |
|
|
84 | #if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES |
|
|
85 | # include <sys/mman.h> |
|
|
86 | #endif |
84 | |
87 | |
85 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
88 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
86 | # if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
89 | # if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
87 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
90 | # define _DIRENT_HAVE_D_TYPE /* sigh */ |
88 | # define D_INO(de) (de)->d_fileno |
91 | # define D_INO(de) (de)->d_fileno |
… | |
… | |
1392 | break; |
1395 | break; |
1393 | } |
1396 | } |
1394 | } |
1397 | } |
1395 | } |
1398 | } |
1396 | |
1399 | |
|
|
1400 | #ifdef PAGESIZE |
|
|
1401 | # define eio_pagesize() PAGESIZE |
|
|
1402 | #else |
|
|
1403 | static intptr_t |
|
|
1404 | eio_pagesize (void) |
|
|
1405 | { |
|
|
1406 | static intptr_t page; |
|
|
1407 | |
|
|
1408 | if (!page) |
|
|
1409 | page = sysconf (_SC_PAGESIZE); |
|
|
1410 | |
|
|
1411 | return page; |
|
|
1412 | } |
|
|
1413 | #endif |
|
|
1414 | |
|
|
1415 | static void |
|
|
1416 | eio_page_align (void **addr, size_t *length) |
|
|
1417 | { |
|
|
1418 | intptr_t mask = eio_pagesize () - 1; |
|
|
1419 | |
|
|
1420 | /* round down addr */ |
|
|
1421 | intptr_t adj = mask & (intptr_t)*addr; |
|
|
1422 | |
|
|
1423 | *addr = (void *)((intptr_t)*addr - adj); |
|
|
1424 | *length += adj; |
|
|
1425 | |
|
|
1426 | /* round up length */ |
|
|
1427 | *length = (*length + mask) & ~mask; |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | #if !_POSIX_MEMLOCK |
|
|
1431 | # define eio__mlock(a,b) ((errno = ENOSYS), -1) |
|
|
1432 | # define eio__mlockall(a) ((errno = ENOSYS), -1) |
|
|
1433 | #else |
|
|
1434 | |
|
|
1435 | static int |
|
|
1436 | eio__mlock (void *addr, size_t length) |
|
|
1437 | { |
|
|
1438 | eio_page_align (&addr, &length); |
|
|
1439 | |
|
|
1440 | mlock (addr, length); |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | static int |
|
|
1444 | eio__mlockall (int flags) |
|
|
1445 | { |
|
|
1446 | #if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
|
|
1447 | extern int mallopt (int, int); |
|
|
1448 | mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | if (EIO_MCL_CURRENT != MCL_CURRENT |
|
|
1452 | || EIO_MCL_FUTURE != MCL_FUTURE) |
|
|
1453 | { |
|
|
1454 | flags = 0 |
|
|
1455 | | (flags & EIO_MCL_CURRENT ? MCL_CURRENT : 0) |
|
|
1456 | | (flags & EIO_MCL_FUTURE ? MCL_FUTURE : 0); |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | mlockall (flags); |
|
|
1460 | } |
|
|
1461 | #endif |
|
|
1462 | |
1397 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1463 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1398 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
1464 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
1399 | #else |
1465 | #else |
1400 | |
1466 | |
1401 | int |
1467 | int |
1402 | eio__msync (void *mem, size_t len, int flags) |
1468 | eio__msync (void *mem, size_t len, int flags) |
1403 | { |
1469 | { |
|
|
1470 | eio_page_align (&mem, &len); |
|
|
1471 | |
1404 | if (EIO_MS_ASYNC != MS_SYNC |
1472 | if (EIO_MS_ASYNC != MS_SYNC |
1405 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
1473 | || EIO_MS_INVALIDATE != MS_INVALIDATE |
1406 | || EIO_MS_SYNC != MS_SYNC) |
1474 | || EIO_MS_SYNC != MS_SYNC) |
1407 | { |
1475 | { |
1408 | flags = 0 |
1476 | flags = 0 |
… | |
… | |
1417 | #endif |
1485 | #endif |
1418 | |
1486 | |
1419 | int |
1487 | int |
1420 | eio__mtouch (void *mem, size_t len, int flags) |
1488 | eio__mtouch (void *mem, size_t len, int flags) |
1421 | { |
1489 | { |
|
|
1490 | eio_page_align (&mem, &len); |
|
|
1491 | |
|
|
1492 | { |
1422 | intptr_t addr = (intptr_t)mem; |
1493 | intptr_t addr = (intptr_t)mem; |
1423 | intptr_t end = addr + len; |
1494 | intptr_t end = addr + len; |
1424 | #ifdef PAGESIZE |
1495 | intptr_t page = eio_pagesize (); |
1425 | const intptr_t page = PAGESIZE; |
|
|
1426 | #else |
|
|
1427 | static intptr_t page; |
|
|
1428 | |
1496 | |
1429 | if (!page) |
|
|
1430 | page = sysconf (_SC_PAGESIZE); |
|
|
1431 | #endif |
|
|
1432 | |
|
|
1433 | /* round down to start of page, although this is probably useless */ |
|
|
1434 | addr &= ~(page - 1); /* assume page size is always a power of two */ |
|
|
1435 | |
|
|
1436 | if (addr < end) |
1497 | if (addr < end) |
1437 | if (flags & EIO_MT_MODIFY) /* modify */ |
1498 | if (flags & EIO_MT_MODIFY) /* modify */ |
1438 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
1499 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
1439 | else |
1500 | else |
1440 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
1501 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
|
|
1502 | } |
1441 | |
1503 | |
1442 | return 0; |
1504 | return 0; |
1443 | } |
1505 | } |
1444 | |
1506 | |
1445 | /*****************************************************************************/ |
1507 | /*****************************************************************************/ |
… | |
… | |
1621 | case EIO_SYNC: req->result = 0; sync (); break; |
1683 | case EIO_SYNC: req->result = 0; sync (); break; |
1622 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1684 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1623 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
1685 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
1624 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1686 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1625 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
1687 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
|
|
1688 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
|
|
1689 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1626 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1690 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1627 | |
1691 | |
1628 | case EIO_READDIR: eio__scandir (req, self); break; |
1692 | case EIO_READDIR: eio__scandir (req, self); break; |
1629 | |
1693 | |
1630 | case EIO_BUSY: |
1694 | case EIO_BUSY: |
… | |
… | |
1716 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1780 | eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) |
1717 | { |
1781 | { |
1718 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1782 | REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; |
1719 | } |
1783 | } |
1720 | |
1784 | |
|
|
1785 | eio_req *eio_mlock (void *addr, size_t length, int pri, eio_cb cb, void *data) |
|
|
1786 | { |
|
|
1787 | REQ (EIO_MLOCK); req->ptr2 = addr; req->size = length; SEND; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) |
|
|
1791 | { |
|
|
1792 | REQ (EIO_MLOCKALL); req->int1 = flags; SEND; |
|
|
1793 | } |
|
|
1794 | |
1721 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
1795 | eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data) |
1722 | { |
1796 | { |
1723 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
1797 | REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND; |
1724 | } |
1798 | } |
1725 | |
1799 | |