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newlib-cygwin/winsup/cygwin
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Takashi Yano 1d1451ccd2 Cygwin: signal: Fix high load when retrying to process pending signal 
The commit e10f822a2b39 has a problem that CPU load gets high if
pending signal is not processed successfully for a long time.
With this patch, wait_sig() calls Sleep(1), rather than yield(),
if the pending signal has not been processed successfully for a
predetermined time to prevent CPU from high load.

Addresses: https://cygwin.com/pipermail/cygwin/2024-December/256884.html
Fixes: e10f822a2b39 ("Cygwin: signal: Handle queued signal without explicit __SIGFLUSH")
Reported-by: 凯夏 <walkerxk@gmail.com>
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
2024-12-12 21:38:20 +09:00
..
DevDocs
Cygwin: testsuite: Add x86_64 code to "dynamically load cygwin" test
2022-08-29 17:53:48 +01:00
fhandler
Cygwin: console: Ignore intermediate byte in CSI sequence
2024-12-08 22:34:17 +09:00
include
Cygwin: Change pthread_sigqueue() to accept thread id
2024-11-12 13:05:07 +01:00
lib
Cygwin: drop __stdcall usage
2022-08-04 20:54:09 +02:00
libc
Cygwin: Fix compatibility with GCC 15
2024-12-04 16:50:59 +01:00
linux-locale-helpers
Cygwin: replace all fgrep' with grep -F'
2024-01-18 10:53:25 +01:00
local_includes
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
math
Cygwin: fix return value of ilogbl(NaN)
2023-04-18 13:43:06 +02:00
mm
Cygwin: cygheap: compute bucket instead of looping over it
2024-03-01 22:35:22 +01:00
regex
Cygwin: regex: fix faulty check for valid range expression
2023-03-20 12:58:03 +01:00
release
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
scripts
Cygwin: _cygtls: Remove _cygtls::spinning
2024-12-08 08:58:27 +09:00
sec
Cygwin: access: Correction for samba/SMB share
2024-12-11 07:32:22 +09:00
tzcode
Cygwin: move EXPORT_ALIAS expressions to end of source
2024-03-07 21:50:07 +01:00
x86_64
Cygwin: x86_64: import swab.S from NetBSD
2022-12-20 10:19:23 +01:00
advapi32.cc
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
aio.cc
Cygwin: fix build failure due to redefinition of __restrict in sys/cdefs.h
2023-08-07 16:04:32 +02:00
assert.cc
…
autoload.cc
Cygwin: mixer: Fix volume control for no WAVECAPS_LRVOLUME device
2024-06-01 15:23:37 +09:00
automode.c
…
binmode.c
…
clock.cc
Cygwin: drop unnecessary inclusion of spinlock.h
2024-12-04 14:53:08 +01:00
config.h.in
…
create_posix_thread.cc
Cygwin: add memory_layout.h
2022-10-28 16:26:53 +02:00
crt0.c
Cygwin: drop 32 bit considerations in crt0 code
2022-05-16 18:17:06 +02:00
ctype.cc
Cygwin: fully support KOI8-T codeset
2023-02-25 16:12:51 +01:00
cxx.cc
…
cygthread.cc
Cygwin: cygthread: add description for pty_master_fwd_thread
2024-12-09 13:15:19 +01:00
cygtls.cc
Cygwin: _cygtls: Remove _cygtls::spinning
2024-12-08 08:58:27 +09:00
cygwait.cc
Cygwin: cygtls: rename sig to current_sig
2024-11-23 12:23:15 +01:00
cygwin.din
Cygwin: timespec_get: implement C11 function
2024-02-16 20:44:31 +01:00
cygwin.ldif
…
cygwin.sc.in
Cygwin: drop objcopy .gnu_debuglink juggle
2022-10-28 16:26:53 +02:00
cygxdr.cc
…
dcrt0.cc
Cygwin: globify: read full 32 bit character
2024-04-09 22:30:03 +02:00
debug.cc
Cygwin: debugging: convert muto to SRWLOCK
2022-08-22 14:38:49 +02:00
devices.cc
Cygwin: console: Fix race issue on allocating console simultaneously.
2024-07-09 00:01:22 +09:00
devices.in
Cygwin: console: Fix race issue on allocating console simultaneously.
2024-07-09 00:01:22 +09:00
dir.cc
Cygwin: opendir(3): move ENOTDIR check into main function
2024-03-20 12:34:51 +01:00
dlfcn.cc
Cygwin: remove miscellaneous 32-bit code
2022-05-29 17:54:32 -04:00
dll_init.cc
Cygwin: redefine how to recognize forkee state
2024-01-29 13:33:05 +01:00
dtable.cc
Cygwin: pipe: Switch pipe mode to blocking mode by default
2024-11-01 04:50:45 +09:00
environ.cc
Cygwin: reorder list of CYGWIN env var options alphabetically again
2024-02-03 19:54:50 +01:00
errno.cc
Cygwin: set ENOSHARE and ECASECLASH _sys_errlist[] entries to empty
2024-02-28 09:59:07 +01:00
exceptions.cc
Cygwin: _cygtls: Remove _cygtls::spinning
2024-12-08 08:58:27 +09:00
exec.cc
Cygwin: move EXPORT_ALIAS expressions to end of source
2024-03-07 21:50:07 +01:00
external.cc
Cygwin: CW_CMDLINE_ALLOC: fix a pontentially undefined return value
2024-02-01 13:34:52 +01:00
fcntl.cc
Cygwin: simplify some function names
2022-05-29 17:45:52 -04:00
fenv.c
…
flock.cc
Cygwin: flock: Fix overlap handling in lf_setlock() and lf_clearlock()
2024-11-20 21:19:15 +09:00
fork.cc
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
forkable.cc
Cygwin: unlink_nt: declare in winsup.h
2023-09-08 22:34:52 +02:00
gcrt0.c
Revert "sys/types.h: Don't include sys/_stdint.h"
2022-05-04 15:08:44 +02:00
glob_pattern_p.cc
…
glob.cc
Revert "Cygwin: glob: perform ignore_case_with_glob on input"
2024-03-18 11:10:13 +01:00
globals.cc
Cygwin: Do not show Error dialogs by default
2024-02-03 19:54:50 +01:00
gmon.c
…
grp.cc
Cygwin: getgrent: don't skip SAM-only builtin-accounts
2024-03-11 12:46:50 +01:00
hookapi.cc
Cygwin: Fix previous attempt to drop i386 targets from hookapi
2022-07-28 16:38:01 +02:00
init.cc
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
ioctl.cc
…
ipc.cc
Cygwin: simplify some function names
2022-05-29 17:45:52 -04:00
kernel32.cc
Cygwin: cygwin_GetCommandLineW/A: don't rely on __argv[0] content
2024-01-31 20:11:58 +01:00
ldap.cc
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
libstdcxx_wrapper.cc
Cygwin: remove miscellaneous 32-bit code
2022-05-29 17:54:32 -04:00
loadavg.cc
…
lsearch.cc
…
Makefile.am
Add libaio to SUBLIBS built for Cygwin
2024-11-19 17:02:13 +01:00
mcount.c
…
miscfuncs.cc
Cygwin: sched_setscheduler: accept SCHED_BATCH
2024-12-12 10:32:00 +01:00
mktemp.cc
Cygwin: simplify some function names
2022-05-29 17:45:52 -04:00
mount.cc
Cygwin: check remote drives for being SSDs as well
2024-01-08 11:45:13 +01:00
msg.cc
…
net.cc
Cygwin: Fix warnings about narrowing conversions of socket ioctls
2024-08-13 19:35:49 +01:00
netdb.cc
…
nfs.cc
…
nlsfuncs.cc
Cygwin: Avoid use-after-free warnings in __set_lc_time_from_win() etc.
2024-08-13 19:44:00 +01:00
ntea.cc
Cygwin: use new XATTR_{NAME,SIZE}_MAX instead of MAX_EA_{NAME,VALUE}_LEN
2023-06-16 21:44:41 +02:00
passwd.cc
Cygwin: getgrent/getpwent: avoid local enumeration on DCs
2024-02-20 23:55:51 +01:00
path.cc
Cygwin: cache IsWow64Process2 host arch in wincap.
2024-11-28 23:52:40 +01:00
pinfo.cc
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
poll.cc
Cygwin: poll: Fix a bug on inquiring same fd with different events.
2022-06-27 10:54:24 +09:00
posix_ipc.cc
Cygwin: move POSIX semaphore API functions to posix_ipc.cc
2022-08-10 18:11:57 +02:00
posix_timer.cc
Cygwin: timer_delete: Fix return value
2024-10-23 13:25:09 +02:00
profil.c
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
pseudo-reloc.cc
Cygwin: drop macro and code for CYGWIN_VERSION_USE_PSEUDO_RELOC_IN_DLL
2022-08-03 16:01:29 +02:00
quotactl.cc
…
random.cc
Cygwin: move EXPORT_ALIAS expressions to end of source
2024-03-07 21:50:07 +01:00
registry.cc
…
resource.cc
Cygwin: fix a few comments mentioning Windows 7 or 8
2022-12-04 14:01:41 +01:00
scandir.cc
…
sched.cc
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
select.cc
Cygwin: pipe: Switch pipe mode to blocking mode by default
2024-11-01 04:50:45 +09:00
sem.cc
…
setlsapwd.cc
…
shm.cc
Cygwin: shm: Convert muto into SRWLOCK and avoid overlocking
2022-08-22 14:28:11 +02:00
signal.cc
Cygwin: signal: Introduce a lock for the signal queue
2024-12-06 19:13:04 +09:00
sigproc.cc
Cygwin: signal: Fix high load when retrying to process pending signal
2024-12-12 21:38:20 +09:00
smallprint.cc
Cygwin: smallprint.cc: Drop HEAP_ZERO_MEMORY
2022-08-22 17:58:53 +02:00
spawn.cc
Cygwin: sched_setscheduler: accept SCHED_RESET_ON_FORK flag
2024-12-12 10:32:00 +01:00
strace.cc
Cygwin: globals: make __progname an alias of program_invocation_short_name
2024-01-31 20:11:58 +01:00
strfuncs.cc
Cygwin: cXXrtomb, mbrtcXX: use function-specific internal state
2023-08-15 22:34:29 +02:00
strsep.cc
…
strsig.cc
Cygwin: signals: drop accidental spaces from real-time signal names
2023-03-15 21:44:52 +01:00
sync.cc
…
syscalls.cc
Cygwin: sched_setscheduler: accept SCHED_BATCH
2024-12-12 10:32:00 +01:00
sysconf.cc
Cygwin: execve: drop argument size limit
2023-08-29 14:17:04 +02:00
syslog.cc
…
termios.cc
Cygwin: drop macro and code for CYGWIN_VERSION_DLL_IS_OLD_TERMIOS
2022-08-03 15:35:29 +02:00
textmode.c
…
textreadmode.c
…
thread.cc
Cygwin: Change pthread_sigqueue() to accept thread id
2024-11-12 13:05:07 +01:00
timerfd.cc
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
times.cc
Cygwin: drop unnecessary inclusion of spinlock.h
2024-12-04 14:53:08 +01:00
tls_pbuf.cc
Cygwin: tls_pathbuf: Use Windows heap
2022-08-23 12:09:44 +02:00
tty.cc
Cygwin: accommodate gcc -Og option
2024-02-14 14:00:34 +01:00
uinfo.cc
Cygwin: (mostly) drop NT4 and Samba < 3.0 support
2024-03-20 12:31:50 +01:00
uname.cc
Cygwin: uname: add host machine tag to sysname.
2024-11-28 23:52:40 +01:00
wait.cc
…
wincap.cc
Cygwin: cache IsWow64Process2 host arch in wincap.
2024-11-28 23:52:40 +01:00
window.cc
Cygwin: drop all usages of WINAPI
2022-08-04 22:13:59 +02:00
winf.cc
…
winver.rc
…