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569eb766c5
freebsd-dev/lib/libc
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Mark Johnston 569eb766c5 Fix handling of EV_EOF for named pipes. 
Contrary to the kevent man page, EV_EOF on a fifo is not cleared by
EV_CLEAR.  Modify the read and write filters to clear EV_EOF when the
fifo's PIPE_EOF flag is clear, and update the man page to document the
new behaviour.

Modify the write filter to return the amount of buffer space available
even if no readers are present.  This matches the behaviour for sockets.

When reading from a pipe, only call pipeselwakeup() if some data was
actually read.  This prevents the continuous re-triggering of a
EVFILT_READ event on EOF when in edge-triggered mode.

PR:		203366, 224615
Submitted by:	Jan Kokemüller <jan.kokemueller@gmail.com>
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D24528
2020-04-27 15:59:19 +00:00
..
aarch64 Fix initial exec TLS mode for dynamically loaded shared objects. 2019-03-29 17:52:57 +00:00
amd64 amd64: sync up libc memcmp with the kernel version (r357309) 2020-01-30 19:57:05 +00:00
arm arm/ffs.S: remove stale comment. 2019-12-28 02:11:41 +00:00
capability Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
compat-43 Adjust history, info source from v1's manuals 2019-09-04 13:44:46 +00:00
db Remove "All rights reserved" from my files. 2018-05-10 06:41:08 +00:00
gdtoa Remove sparc64 specific parts of libc. 2020-02-26 18:55:09 +00:00
gen Attempt to use AT_PS_STRINGS to get the ps_strings pointer. 2020-04-15 20:28:20 +00:00
gmon mcount: tidy up ANSIfication 2018-10-20 22:39:35 +00:00
i386 remove obsolete i386 MD memchr implementation 2019-09-25 16:49:22 +00:00
iconv libc: correct iconv buffer overflow 2019-07-02 23:56:37 +00:00
include Mark closefrom(2) COMPAT12, reimplement in libc to wrap close_range 2020-04-14 18:07:42 +00:00
inet libc: fix cases of undefined behavior. 2018-08-07 15:24:19 +00:00
isc SPDX: more ISC-related files. 2017-12-08 17:52:53 +00:00
locale Use proper mdoc(7) macros for literal text and do not use Tn 2020-04-01 09:01:35 +00:00
md Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
mips mips: fix some mcount nits 2019-09-02 01:55:55 +00:00
nameser Bounds check again after advancing cp, otherwise we have a possible 2019-09-05 19:35:30 +00:00
net libc: Shortcut if_indextoname() if index == 0 2020-04-23 21:16:51 +00:00
nls Fix race condition in catopen(3). 2020-03-19 06:33:06 +00:00
posix1e Remove some redundant code in _posix1e_acl_strip_np 2019-02-19 19:15:15 +00:00
powerpc [PowerPC] Fix typo in _ctx_start on ppc32 2019-11-23 23:41:21 +00:00
powerpc64 Fix r358688 -- Remember to actually save r3 before processing. 2020-03-11 23:34:44 +00:00
powerpcspe [PowerPC] Fix SPE floating point environment manipulation 2019-12-12 17:12:18 +00:00
quad Add casts and L suffixes to libc quad support, to work around various 2020-02-17 20:14:59 +00:00
regex lib/libc/regex: fix build with REDEBUG defined 2019-09-24 12:21:01 +00:00
resolv Rather than using the legacy IP struct fields in the union for the 2019-06-04 20:53:35 +00:00
riscv Check the magic value in longjmp() before calling sigprocmask(). 2020-04-21 17:40:23 +00:00
rpc Fix -Wvoid-pointer-to-enum-cast warnings. 2020-04-15 18:15:58 +00:00
secure ssp: knock out some trivial warnings that come up with WARNS=6 2020-01-04 20:07:11 +00:00
softfloat Add implementations for clog(3), clogf(3), and clog(3). 2018-05-13 09:54:34 +00:00
stdio Add HISTORY section to getc(3) 2020-04-10 09:37:20 +00:00
stdlib Update jemalloc to version 5.2.1 2020-04-23 23:57:43 +00:00
stdtime strptime: make %k and %l specifiers match their description in 2018-11-03 23:37:13 +00:00
string memset.3: better fix previous typo 2020-02-08 21:17:48 +00:00
sys Fix handling of EV_EOF for named pipes. 2020-04-27 15:59:19 +00:00
tests Provide O_SEARCH 2020-02-02 16:34:57 +00:00
uuid libc: further adoption of SPDX licensing ID tags. 2017-11-25 17:12:48 +00:00
x86 Remove resolver_qual from DEFINE_IFUNC/DEFINE_UIFUNC macros. 2019-05-16 22:20:54 +00:00
xdr typo: s/impelmentation/implementation/. 2020-02-07 15:14:29 +00:00
yp Increase the size of the send and receive buffers for YP client rpc 2019-09-16 06:42:01 +00:00
libc_nossp.ldscript Add different libc ldscript: the one without libssp -- 2016-10-12 13:19:21 +00:00
libc.ldscript
Makefile Remove sparc64 specific parts of libc. 2020-02-26 18:55:09 +00:00
Makefile.depend Update Makefile.depend files 2019-12-11 17:37:53 +00:00
Makefile.depend.options Update libssp paths in various Makefile.depend* files 2020-01-06 18:15:55 +00:00
Versions.def Create namespace for the symbols added during 13-CURRENT cycle. 2018-11-12 19:12:14 +00:00