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205 Commits

Author SHA1 Message Date
leitner
45f99bbd0a in io_eagain, make sure the kernel knows we wanted to write to the 
descriptor in case we optimized the syscall away previously
in iob_send leave loop if we got a partial write
 2021-04-24 11:39:18 +00:00
leitner
f4cd377378 fix out of bounds memory access 2021-04-23 08:02:09 +00:00
leitner
86e596b870 limit iovec size for sendmsg code path to 50 2021-04-22 12:53:53 +00:00
leitner
1fb5505cc2 add missing includes 2021-04-22 11:12:52 +00:00
leitner
b5f21a3900 add support for saving syscalls with accept4 2021-03-12 16:23:32 +00:00
leitner
c4b0dd6b81 move cleanup after check that all events are handled 2021-03-12 10:43:46 +00:00
leitner
15f004df55 prevent infinite loop in cleanup code for 
io_close-with-outstanding-events-queued race prevention
 2021-03-11 14:13:51 +00:00
leitner
5f9f1a2a62 properly initialize deferred list in io_fd (did not help though) 2021-03-09 13:54:59 +00:00
leitner
ad37bd83de add snarky comment 2021-02-18 23:21:57 +00:00
leitner
d4ac8fe906 might actually work now 2021-02-17 13:48:39 +00:00
leitner
75fe9a620e attempt to prevent future endless loops in io_wait half-closed fd 
cleanup
 2021-02-16 15:50:38 +00:00
leitner
ddfdd4d077 add compiler.h to abstract gcc attributes 2020-11-08 00:29:35 +00:00
leitner
69c9d1454d port the epoll optimizations to kqueue, hopefully repairing it in the process 2020-05-15 11:42:53 +00:00
leitner
9d51f000ef silence another compiler warning 2020-05-14 14:48:40 +00:00
leitner
bbaf63c7fd remove compiler warnings in ent 
try to fix io_waituntil2 on freebsd
 2020-05-14 14:46:31 +00:00
leitner
8b0450cd29 some old glibc may define MSG_ZEROCOPY but not SO_ZEROCOPY :-( 2020-04-05 20:19:25 +00:00
leitner
278a675a69 bsd fix 2019-02-21 12:43:06 +00:00
leitner
97368fbfa6 BSD build fix (hopefully) 
move more #include to <libowfat/...>
 2019-02-21 12:24:05 +00:00
leitner
3873bab74b add stralloc_APPEND 
use atomic updates for iom->working
 2018-04-11 14:12:50 +00:00
leitner
ce595ae0cc add experimental iom API for multithreaded I/O multiplexing (in io.h) 2018-03-27 02:23:00 +00:00
leitner
94feba3667 use write in buffer_put for a slight perf improvement 2018-03-12 13:04:30 +00:00
leitner
e4a2f4d068 compile if MSG_ZEROCOPY is not defined by libc 2017-11-24 17:21:10 +00:00
leitner
f8c4132df0 add MSG_ZEROCOPY support (only used for buffers >8k) 2017-11-15 14:09:26 +00:00
leitner
760598ec2f #include <foo.h> -> #include <libowfat/foo.h> 2017-05-13 22:51:26 +00:00
leitner
c29096b2e0 some more eagain handling in tryread and trywrite 
cosmetic change
 2017-02-04 17:23:33 +00:00
leitner
d862c9e482 "fmt.h" instead of <fmt.h> 2016-10-15 12:29:00 +00:00
leitner
b4c4eb607e remove OpenBSD #warning (obsd maintainer says no longer needed) 2016-10-11 11:45:46 +00:00
leitner
2a0bcc2fb6 implement deferred closing 2016-10-04 22:43:31 +00:00
leitner
b73a699dab reengineer alt queue handling to prevent race 2016-10-04 21:31:14 +00:00
leitner
f9570b38a1 attempt to work around race condition when you close an fd but there are 
still outstanding events queued on it.
 2016-10-04 20:38:04 +00:00
leitner
8913f6174c document race condition caused by queueing of multiple events 2016-10-01 20:10:38 +00:00
leitner
137b80ea74 test for pread and use it instead of lseek+read in cdb and io_mmapwritefile 2016-06-23 19:42:13 +00:00
leitner
a1f1986247 include <foo> -> include "foo" 2016-03-17 11:13:23 +00:00
leitner
7bdc1b29bb a few missing headers and minor fixes 
fix corking behavior for the case where a buffer follows a buffer in
iob_send
 2015-09-06 18:01:02 +00:00
leitner
fce165fdcb remove dead store 2015-04-10 23:15:59 +00:00
leitner
c60c2425ce hopefully fix the infinite loop in gatling 2014-10-19 01:52:36 +00:00
leitner
193dfba16b remove compiler warning 2014-10-16 16:17:09 +00:00
leitner
4fa4a524d2 add io_fd_flags so the caller can tell io_fd whether the socket is blocking 
(saves one fcntl syscall)
 2014-10-09 09:02:28 +00:00
leitner
953eb639b2 on Linux, save a few syscalls by using sendto/sendmsg with MSG_MORE 
instead of write/writev + setsockopt TCP_CORK
 2014-10-07 13:43:50 +00:00
leitner
4404ab35f3 revert to level triggering for epoll (forgot io_wantread) 2014-09-09 13:48:04 +00:00
leitner
967e3ce019 revert edge triggering epoll; it had reliability and fairness issues and 
was also not actually faster
 2014-08-28 19:03:57 +00:00
leitner
39e7ee90bb introduce io_eagain_read and io_eagain_write (discontinue using io_eagain plz) 2014-06-05 20:43:01 +00:00
leitner
d9cbb3940c it turns out you don't need -1/EGAIN to know edge triggering told you 
there is no more data, it's enough to read/write less than you asked for
 2014-06-05 19:17:24 +00:00
leitner
5baf943f0a finish epoll move to edge triggering 2014-05-08 04:25:42 +00:00
leitner
a544abc39c switch io_fds from array to newly implemented (hopefully thread-safe) iarray 
switch epoll from level triggering to edge triggering
 2014-04-04 18:11:03 +00:00
leitner
ff3a3410ec hopefully this fixes the looping gatling processes 2013-10-01 23:15:51 +00:00
leitner
e175800a8c add io_fd_canwrite (like io_fd but assume the fd is writable) 
save a few syscalls here and there
 2012-04-10 21:15:51 +00:00
leitner
6e6fc8b85d fix endless loop bug on freebsd 2012-03-19 02:38:52 +00:00
leitner
c2a2a15c12 document the return value expected from the callback given to iob_write 
remove unused #include in iob_reset
if iob_addfile_close fails, it now closes the fd
if iob_addbuf_munmap fails, it now munmaps the buf
if iob_addbuf_free fails, it now frees the buf
some win32 cross-compile fixes for iarray
 2012-02-24 02:00:52 +00:00
leitner
662cf55fc9 accept -3 as error return from the callback, too 2012-01-20 19:19:49 +00:00