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46 | # define NAME_MAX 4096 |
46 | # define NAME_MAX 4096 |
47 | #endif |
47 | #endif |
48 | |
48 | |
49 | #if __ia64 |
49 | #if __ia64 |
50 | # define STACKSIZE 65536 |
50 | # define STACKSIZE 65536 |
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51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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52 | # define STACKSIZE PTHREAD_STACK_MIN |
51 | #else |
53 | #else |
52 | # define STACKSIZE 8192 |
54 | # define STACKSIZE 16384 |
53 | #endif |
55 | #endif |
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56 | |
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57 | /* buffer size for various temporary buffers */ |
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58 | #define AIO_BUFSIZE 65536 |
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59 | |
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60 | #define dBUF \ |
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61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
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62 | if (!aio_buf) \ |
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63 | return -1; |
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64 | |
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65 | #define fBUF free (aio_buf) |
54 | |
66 | |
55 | enum { |
67 | enum { |
56 | REQ_QUIT, |
68 | REQ_QUIT, |
57 | REQ_OPEN, REQ_CLOSE, |
69 | REQ_OPEN, REQ_CLOSE, |
58 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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207 | fd_set rfd; |
219 | fd_set rfd; |
208 | |
220 | |
209 | while (nreqs) |
221 | while (nreqs) |
210 | { |
222 | { |
211 | aio_req req; |
223 | aio_req req; |
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|
224 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
212 | pthread_mutex_lock (&reslock); |
225 | pthread_mutex_lock (&reslock); |
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226 | #endif |
213 | req = ress; |
227 | req = ress; |
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228 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
214 | pthread_mutex_unlock (&reslock); |
229 | pthread_mutex_unlock (&reslock); |
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|
230 | #endif |
215 | |
231 | |
216 | if (req) |
232 | if (req) |
217 | return; |
233 | return; |
218 | |
234 | |
219 | FD_ZERO(&rfd); |
235 | FD_ZERO(&rfd); |
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590 | #if !HAVE_READAHEAD |
606 | #if !HAVE_READAHEAD |
591 | # define readahead aio_readahead |
607 | # define readahead aio_readahead |
592 | |
608 | |
593 | static ssize_t readahead (int fd, off_t offset, size_t count) |
609 | static ssize_t readahead (int fd, off_t offset, size_t count) |
594 | { |
610 | { |
595 | char readahead_buf[4096]; |
611 | dBUF; |
596 | |
612 | |
597 | while (count > 0) |
613 | while (count > 0) |
598 | { |
614 | { |
599 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
615 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
600 | |
616 | |
601 | pread (fd, readahead_buf, len, offset); |
617 | pread (fd, aio_buf, len, offset); |
602 | offset += len; |
618 | offset += len; |
603 | count -= len; |
619 | count -= len; |
604 | } |
620 | } |
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621 | |
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622 | fBUF; |
605 | |
623 | |
606 | errno = 0; |
624 | errno = 0; |
607 | } |
625 | } |
608 | #endif |
626 | #endif |
609 | |
627 | |
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695 | #endif |
713 | #endif |
696 | ) |
714 | ) |
697 | ) |
715 | ) |
698 | { |
716 | { |
699 | /* emulate sendfile. this is a major pain in the ass */ |
717 | /* emulate sendfile. this is a major pain in the ass */ |
700 | char buf[4096]; |
718 | dBUF; |
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719 | |
701 | res = 0; |
720 | res = 0; |
702 | |
721 | |
703 | while (count) |
722 | while (count) |
704 | { |
723 | { |
705 | ssize_t cnt; |
724 | ssize_t cnt; |
706 | |
725 | |
707 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
726 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
708 | |
727 | |
709 | if (cnt <= 0) |
728 | if (cnt <= 0) |
710 | { |
729 | { |
711 | if (cnt && !res) res = -1; |
730 | if (cnt && !res) res = -1; |
712 | break; |
731 | break; |
713 | } |
732 | } |
714 | |
733 | |
715 | cnt = write (ofd, buf, cnt); |
734 | cnt = write (ofd, aio_buf, cnt); |
716 | |
735 | |
717 | if (cnt <= 0) |
736 | if (cnt <= 0) |
718 | { |
737 | { |
719 | if (cnt && !res) res = -1; |
738 | if (cnt && !res) res = -1; |
720 | break; |
739 | break; |
… | |
… | |
722 | |
741 | |
723 | offset += cnt; |
742 | offset += cnt; |
724 | res += cnt; |
743 | res += cnt; |
725 | count -= cnt; |
744 | count -= cnt; |
726 | } |
745 | } |
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|
746 | |
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|
747 | fBUF; |
727 | } |
748 | } |
728 | |
749 | |
729 | return res; |
750 | return res; |
730 | } |
751 | } |
731 | |
752 | |
732 | /* read a full directory */ |
753 | /* read a full directory */ |
733 | static int scandir_ (const char *path, void **namesp) |
754 | static int scandir_ (const char *path, void **namesp) |
734 | { |
755 | { |
735 | DIR *dirp = opendir (path); |
756 | DIR *dirp; |
736 | union |
757 | union |
737 | { |
758 | { |
738 | struct dirent d; |
759 | struct dirent d; |
739 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
760 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
740 | } u; |
761 | } *u; |
741 | struct dirent *entp; |
762 | struct dirent *entp; |
742 | char *name, *names; |
763 | char *name, *names; |
743 | int memlen = 4096; |
764 | int memlen = 4096; |
744 | int memofs = 0; |
765 | int memofs = 0; |
745 | int res = 0; |
766 | int res = 0; |
746 | int errorno; |
767 | int errorno; |
747 | |
768 | |
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|
769 | dirp = opendir (path); |
748 | if (!dirp) |
770 | if (!dirp) |
749 | return -1; |
771 | return -1; |
750 | |
772 | |
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|
773 | u = malloc (sizeof (*u)); |
751 | names = malloc (memlen); |
774 | names = malloc (memlen); |
752 | |
775 | |
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776 | if (u && names) |
753 | for (;;) |
777 | for (;;) |
754 | { |
778 | { |
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|
779 | errno = 0; |
755 | errno = 0, readdir_r (dirp, &u.d, &entp); |
780 | readdir_r (dirp, &u->d, &entp); |
756 | |
781 | |
757 | if (!entp) |
782 | if (!entp) |
758 | break; |
783 | break; |
759 | |
784 | |
760 | name = entp->d_name; |
785 | name = entp->d_name; |
761 | |
786 | |
762 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
787 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
763 | { |
788 | { |
764 | int len = strlen (name) + 1; |
789 | int len = strlen (name) + 1; |
765 | |
790 | |
766 | res++; |
791 | res++; |
767 | |
792 | |
768 | while (memofs + len > memlen) |
793 | while (memofs + len > memlen) |
769 | { |
794 | { |
770 | memlen *= 2; |
795 | memlen *= 2; |
771 | names = realloc (names, memlen); |
796 | names = realloc (names, memlen); |
772 | if (!names) |
797 | if (!names) |
773 | break; |
798 | break; |
774 | } |
799 | } |
775 | |
800 | |
776 | memcpy (names + memofs, name, len); |
801 | memcpy (names + memofs, name, len); |
777 | memofs += len; |
802 | memofs += len; |
778 | } |
803 | } |
779 | } |
804 | } |
780 | |
805 | |
781 | errorno = errno; |
806 | errorno = errno; |
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|
807 | free (u); |
782 | closedir (dirp); |
808 | closedir (dirp); |
783 | |
809 | |
784 | if (errorno) |
810 | if (errorno) |
785 | { |
811 | { |
786 | free (names); |
812 | free (names); |