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Linux: Add epoll_pwait2 (BZ #27359)
It is similar to epoll_wait, with the difference the timeout has nanosecond resoluting by using struct timespec instead of int. Although Linux interface only provides 64 bit time_t support, old 32 bit interface is also provided (so keep in sync with current practice and to no force opt-in on 64 bit time_t). Checked on x86_64-linux-gnu and i686-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
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3
NEWS
3
NEWS
@ -126,6 +126,9 @@ Major new features:
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checks, this can help to ensure that proper diagnostics are printed if
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the dynamic loader runs on an incompatible CPU.
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* On Linux, the epoll_pwait2 function has been added. It is similar to
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epoll_wait with the difference the timeout has nanoseconds resolution.
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Deprecated and removed features, and other changes affecting compatibility:
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* On x86-64, the LD_PREFER_MAP_32BIT_EXEC environment variable support
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@ -4,6 +4,14 @@
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# ifndef _ISOMAC
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libc_hidden_proto (epoll_pwait)
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#if __TIMESIZE == 64
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# define __epoll_pwait2_time64 epoll_pwait2
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#else
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extern int __epoll_pwait2_time64 (int fd, struct epoll_event *ev, int maxev,
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const struct __timespec64 *tmo,
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const sigset_t *s);
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libc_hidden_proto (__epoll_pwait2_time64)
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#endif
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# endif /* !_ISOMAC */
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#endif
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@ -55,7 +55,7 @@ endif
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ifeq ($(subdir),misc)
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sysdep_routines += adjtimex clone umount umount2 readahead sysctl \
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setfsuid setfsgid epoll_pwait signalfd \
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setfsuid setfsgid epoll_pwait epoll_pwait2 signalfd \
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eventfd eventfd_read eventfd_write prlimit prlimit64 \
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personality epoll_wait tee vmsplice splice \
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open_by_handle_at mlock2 pkey_mprotect pkey_set pkey_get \
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@ -125,6 +125,7 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
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tst-ntp_gettimex tst-sigtimedwait tst-misalign-clone \
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tst-prctl \
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tst-scm_rights \
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tst-epoll \
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# tests
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# Test for the symbol version of fcntl that was replaced in glibc 2.28.
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@ -146,6 +147,7 @@ endif
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tests-time64 += \
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tst-adjtimex-time64 \
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tst-clock_adjtime-time64 \
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tst-epoll-time64 \
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tst-ntp_adjtime-time64 \
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tst-ntp_gettime-time64 \
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tst-ntp_gettimex-time64 \
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@ -293,6 +293,12 @@ libc {
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%endif
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close_range;
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}
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GLIBC_2.35 {
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%ifdef TIME64_NON_DEFAULT
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__epoll_pwait2_time64;
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%endif
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epoll_pwait2;
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}
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GLIBC_PRIVATE {
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# functions used in other libraries
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__syscall_rt_sigqueueinfo;
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@ -2614,3 +2614,4 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2711,6 +2711,7 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2375,3 +2375,4 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -491,8 +491,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _Exit F
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GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
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GLIBC_2.4 _IO_2_1_stdin_ D 0xa0
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@ -488,8 +488,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _Exit F
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GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
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GLIBC_2.4 _IO_2_1_stdin_ D 0xa0
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@ -2647,5 +2647,7 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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44
sysdeps/unix/sysv/linux/epoll_pwait2.c
Normal file
44
sysdeps/unix/sysv/linux/epoll_pwait2.c
Normal file
@ -0,0 +1,44 @@
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/* Implementation of epoll_pwait2 syscall wrapper.
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Copyright (C) 2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sys/epoll.h>
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#include <sysdep.h>
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int
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__epoll_pwait2_time64 (int fd, struct epoll_event *ev, int maxev,
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const struct __timespec64 *tmo, const sigset_t *s)
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{
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/* The syscall only supports 64-bit time_t. */
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return SYSCALL_CANCEL (epoll_pwait2, fd, ev, maxev, tmo, s, __NSIG_BYTES);
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}
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#if __TIMESIZE != 64
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libc_hidden_def (__epoll_pwait2_time64)
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int
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epoll_pwait2 (int fd, struct epoll_event *ev, int maxev,
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const struct timespec *tmo, const sigset_t *s)
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{
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struct __timespec64 tmo64, *ptmo64 = NULL;
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if (tmo != NULL)
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{
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tmo64 = valid_timespec_to_timespec64 (*tmo);
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ptmo64 = &tmo64;
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}
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return __epoll_pwait2_time64 (fd, ev, maxev, ptmo64, s);
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}
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#endif
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@ -2596,8 +2596,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2780,8 +2780,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2549,6 +2549,7 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -492,8 +492,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _Exit F
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GLIBC_2.4 _IO_2_1_stderr_ D 0x98
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GLIBC_2.4 _IO_2_1_stdin_ D 0x98
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2696,5 +2696,7 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2693,5 +2693,7 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2688,8 +2688,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2686,8 +2686,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2694,8 +2694,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2600,6 +2600,7 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 __confstr_chk F
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GLIBC_2.4 __fgets_chk F
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GLIBC_2.4 __fgets_unlocked_chk F
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@ -2735,5 +2735,7 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -697,6 +697,7 @@ GLIBC_2.35 epoll_create F
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GLIBC_2.35 epoll_create1 F
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GLIBC_2.35 epoll_ctl F
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GLIBC_2.35 epoll_pwait F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.35 epoll_wait F
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GLIBC_2.35 erand48 F
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GLIBC_2.35 erand48_r F
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@ -2750,8 +2750,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2783,8 +2783,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2508,6 +2508,7 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2810,3 +2810,4 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2377,3 +2377,4 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2577,3 +2577,4 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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@ -2748,8 +2748,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2545,6 +2545,7 @@ GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __memcmpeq F
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GLIBC_2.35 _dl_find_object F
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GLIBC_2.35 epoll_pwait2 F
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GLIBC_2.4 _IO_fprintf F
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GLIBC_2.4 _IO_printf F
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GLIBC_2.4 _IO_sprintf F
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@ -2603,8 +2603,10 @@ GLIBC_2.34 tss_create F
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GLIBC_2.34 tss_delete F
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GLIBC_2.34 tss_get F
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GLIBC_2.34 tss_set F
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GLIBC_2.35 __epoll_pwait2_time64 F
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GLIBC_2.35 __memcmpeq F
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||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
GLIBC_2.4 __confstr_chk F
|
||||
GLIBC_2.4 __fgets_chk F
|
||||
GLIBC_2.4 __fgets_unlocked_chk F
|
||||
|
@ -2600,8 +2600,10 @@ GLIBC_2.34 tss_create F
|
||||
GLIBC_2.34 tss_delete F
|
||||
GLIBC_2.34 tss_get F
|
||||
GLIBC_2.34 tss_set F
|
||||
GLIBC_2.35 __epoll_pwait2_time64 F
|
||||
GLIBC_2.35 __memcmpeq F
|
||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
GLIBC_2.4 __confstr_chk F
|
||||
GLIBC_2.4 __fgets_chk F
|
||||
GLIBC_2.4 __fgets_unlocked_chk F
|
||||
|
@ -2743,8 +2743,10 @@ GLIBC_2.34 tss_create F
|
||||
GLIBC_2.34 tss_delete F
|
||||
GLIBC_2.34 tss_get F
|
||||
GLIBC_2.34 tss_set F
|
||||
GLIBC_2.35 __epoll_pwait2_time64 F
|
||||
GLIBC_2.35 __memcmpeq F
|
||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
GLIBC_2.4 _IO_fprintf F
|
||||
GLIBC_2.4 _IO_printf F
|
||||
GLIBC_2.4 _IO_sprintf F
|
||||
|
@ -2572,6 +2572,7 @@ GLIBC_2.34 tss_get F
|
||||
GLIBC_2.34 tss_set F
|
||||
GLIBC_2.35 __memcmpeq F
|
||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
GLIBC_2.4 __confstr_chk F
|
||||
GLIBC_2.4 __fgets_chk F
|
||||
GLIBC_2.4 __fgets_unlocked_chk F
|
||||
|
@ -22,6 +22,7 @@
|
||||
#include <sys/types.h>
|
||||
|
||||
#include <bits/types/sigset_t.h>
|
||||
#include <bits/types/struct_timespec.h>
|
||||
|
||||
/* Get the platform-dependent flags. */
|
||||
#include <bits/epoll.h>
|
||||
@ -133,6 +134,26 @@ extern int epoll_pwait (int __epfd, struct epoll_event *__events,
|
||||
int __maxevents, int __timeout,
|
||||
const __sigset_t *__ss);
|
||||
|
||||
/* Same as epoll_pwait, but the timeout as a timespec.
|
||||
|
||||
This function is a cancellation point and therefore not marked with
|
||||
__THROW. */
|
||||
#ifndef __USE_TIME_BITS64
|
||||
extern int epoll_pwait2 (int __epfd, struct epoll_event *__events,
|
||||
int __maxevents, const struct timespec *__timeout,
|
||||
const __sigset_t *__ss);
|
||||
#else
|
||||
# ifdef __REDIRECT
|
||||
extern int __REDIRECT (epoll_pwait2, (int __epfd, struct epoll_event *__ev,
|
||||
int __maxevs,
|
||||
const struct timespec *__timeout,
|
||||
const __sigset_t *__ss),
|
||||
__epoll_pwait2_time64);
|
||||
# else
|
||||
# define epoll_pwait2 __epoll_pwait2_time64
|
||||
# endif
|
||||
#endif
|
||||
|
||||
__END_DECLS
|
||||
|
||||
#endif /* sys/epoll.h */
|
||||
|
1
sysdeps/unix/sysv/linux/tst-epoll-time64.c
Normal file
1
sysdeps/unix/sysv/linux/tst-epoll-time64.c
Normal file
@ -0,0 +1 @@
|
||||
#include "tst-epoll.c"
|
211
sysdeps/unix/sysv/linux/tst-epoll.c
Normal file
211
sysdeps/unix/sysv/linux/tst-epoll.c
Normal file
@ -0,0 +1,211 @@
|
||||
/* Basic tests for Linux epoll_* wrappers.
|
||||
Copyright (C) 2022 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <intprops.h>
|
||||
#include <support/check.h>
|
||||
#include <support/support.h>
|
||||
#include <support/xsignal.h>
|
||||
#include <support/xunistd.h>
|
||||
#include <support/xtime.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/epoll.h>
|
||||
|
||||
/* The test focus on checking if the timeout argument is correctly handled
|
||||
by glibc wrappers. */
|
||||
|
||||
static void
|
||||
handler (int sig)
|
||||
{
|
||||
}
|
||||
|
||||
typedef int (*epoll_wait_check_t) (int, struct epoll_event *, int,
|
||||
int, const sigset_t *);
|
||||
|
||||
static void
|
||||
test_epoll_basic (epoll_wait_check_t epoll_wait_check)
|
||||
{
|
||||
{
|
||||
sigset_t ss_usr1;
|
||||
sigemptyset (&ss_usr1);
|
||||
sigaddset (&ss_usr1, SIGUSR1);
|
||||
TEST_COMPARE (sigprocmask (SIG_BLOCK, &ss_usr1, NULL), 0);
|
||||
}
|
||||
|
||||
int fds[2][2];
|
||||
xpipe (fds[0]);
|
||||
xpipe (fds[1]);
|
||||
|
||||
sigset_t ss;
|
||||
TEST_COMPARE (sigprocmask (SIG_SETMASK, NULL, &ss), 0);
|
||||
sigdelset (&ss, SIGUSR1);
|
||||
|
||||
int efd = epoll_create1 (0);
|
||||
TEST_VERIFY_EXIT (efd != -1);
|
||||
|
||||
struct epoll_event event;
|
||||
|
||||
event.data.fd = fds[1][0];
|
||||
event.events = EPOLLIN | EPOLLET;
|
||||
TEST_COMPARE (epoll_ctl (efd, EPOLL_CTL_ADD, fds[1][0], &event), 0);
|
||||
|
||||
pid_t parent = getpid ();
|
||||
pid_t p = xfork ();
|
||||
if (p == 0)
|
||||
{
|
||||
xclose (fds[0][1]);
|
||||
xclose (fds[1][0]);
|
||||
|
||||
event.data.fd = fds[0][0];
|
||||
event.events = EPOLLIN | EPOLLET;
|
||||
TEST_COMPARE (epoll_ctl (efd, EPOLL_CTL_ADD, fds[0][0], &event), 0);
|
||||
|
||||
int e;
|
||||
do
|
||||
{
|
||||
if (getppid () != parent)
|
||||
FAIL_EXIT1 ("getppid()=%d != parent=%d", getppid(), parent);
|
||||
|
||||
errno = 0;
|
||||
e = epoll_wait_check (efd, &event, 1, 500, &ss);
|
||||
}
|
||||
while (e == 0);
|
||||
|
||||
TEST_COMPARE (e, -1);
|
||||
TEST_COMPARE (errno, EINTR);
|
||||
|
||||
TEMP_FAILURE_RETRY (write (fds[1][1], "foo", 3));
|
||||
|
||||
exit (0);
|
||||
}
|
||||
|
||||
xclose (fds[0][0]);
|
||||
xclose (fds[1][1]);
|
||||
|
||||
/* Wait some time so child is blocked on the syscall. */
|
||||
nanosleep (&(struct timespec) {0, 10000000}, NULL);
|
||||
TEST_COMPARE (kill (p, SIGUSR1), 0);
|
||||
|
||||
int e = epoll_wait_check (efd, &event, 1, 500000000, &ss);
|
||||
TEST_COMPARE (e, 1);
|
||||
TEST_VERIFY (event.events & EPOLLIN);
|
||||
|
||||
xclose (fds[0][1]);
|
||||
xclose (fds[1][0]);
|
||||
xclose (efd);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
test_epoll_large_timeout (epoll_wait_check_t epoll_wait_check)
|
||||
{
|
||||
timer_t t = support_create_timer (0, 100000000, true, NULL);
|
||||
|
||||
int fds[2];
|
||||
xpipe (fds);
|
||||
|
||||
fd_set rfds;
|
||||
FD_ZERO (&rfds);
|
||||
FD_SET (fds[0], &rfds);
|
||||
|
||||
sigset_t ss;
|
||||
TEST_COMPARE (sigprocmask (SIG_SETMASK, NULL, &ss), 0);
|
||||
sigdelset (&ss, SIGALRM);
|
||||
|
||||
int efd = epoll_create1 (0);
|
||||
TEST_VERIFY_EXIT (efd != -1);
|
||||
|
||||
struct epoll_event event;
|
||||
event.data.fd = fds[0];
|
||||
event.events = EPOLLIN | EPOLLET;
|
||||
TEST_COMPARE (epoll_ctl (efd, EPOLL_CTL_ADD, fds[0], &event), 0);
|
||||
|
||||
int tmo = TYPE_MAXIMUM (int);
|
||||
TEST_COMPARE (epoll_wait_check (efd, &event, 1, tmo, &ss), -1);
|
||||
TEST_VERIFY (errno == EINTR || errno == EOVERFLOW);
|
||||
|
||||
TEST_COMPARE (epoll_wait_check (efd, &event, 1, -1, &ss), -1);
|
||||
TEST_VERIFY (errno == EINTR || errno == EOVERFLOW);
|
||||
|
||||
support_delete_timer (t);
|
||||
|
||||
xclose (fds[0]);
|
||||
xclose (fds[1]);
|
||||
xclose (efd);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
epoll_wait_check (int epfd, struct epoll_event *ev, int maxev, int tmo,
|
||||
const sigset_t *ss)
|
||||
{
|
||||
sigset_t orig;
|
||||
TEST_COMPARE (sigprocmask (SIG_SETMASK, ss, &orig), 0);
|
||||
int r = epoll_wait (epfd, ev, maxev, tmo);
|
||||
TEST_COMPARE (sigprocmask (SIG_SETMASK, &orig, NULL), 0);
|
||||
return r;
|
||||
}
|
||||
|
||||
static int
|
||||
epoll_pwait_check (int epfd, struct epoll_event *ev, int maxev, int tmo,
|
||||
const sigset_t *ss)
|
||||
{
|
||||
return epoll_pwait (epfd, ev, maxev, tmo, ss);
|
||||
}
|
||||
|
||||
static int
|
||||
epoll_pwait2_check (int epfd, struct epoll_event *ev, int maxev, int tmo,
|
||||
const sigset_t *ss)
|
||||
{
|
||||
time_t s = tmo == -1 ? TYPE_MAXIMUM (time_t) : tmo / 1000;
|
||||
long int ns = tmo == -1 ? 0 : (tmo % 1000) * 1000000;
|
||||
return epoll_pwait2 (epfd, ev, maxev, &(struct timespec) { s, ns }, ss);
|
||||
}
|
||||
|
||||
static int
|
||||
do_test (void)
|
||||
{
|
||||
{
|
||||
struct sigaction sa;
|
||||
sa.sa_handler = handler;
|
||||
sa.sa_flags = 0;
|
||||
sigemptyset (&sa.sa_mask);
|
||||
xsigaction (SIGUSR1, &sa, NULL);
|
||||
|
||||
sa.sa_handler = SIG_IGN;
|
||||
xsigaction (SIGCHLD, &sa, NULL);
|
||||
}
|
||||
|
||||
int r = epoll_pwait2 (-1, NULL, 0, NULL, NULL);
|
||||
TEST_COMPARE (r, -1);
|
||||
bool pwait2_supported = errno != ENOSYS;
|
||||
|
||||
test_epoll_basic (epoll_wait_check);
|
||||
test_epoll_basic (epoll_pwait_check);
|
||||
if (pwait2_supported)
|
||||
test_epoll_basic (epoll_pwait2_check);
|
||||
|
||||
test_epoll_large_timeout (epoll_wait_check);
|
||||
test_epoll_large_timeout (epoll_pwait_check);
|
||||
if (pwait2_supported)
|
||||
test_epoll_large_timeout (epoll_pwait2_check);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#include <support/test-driver.c>
|
@ -2523,6 +2523,7 @@ GLIBC_2.34 tss_get F
|
||||
GLIBC_2.34 tss_set F
|
||||
GLIBC_2.35 __memcmpeq F
|
||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
GLIBC_2.4 __confstr_chk F
|
||||
GLIBC_2.4 __fgets_chk F
|
||||
GLIBC_2.4 __fgets_unlocked_chk F
|
||||
|
@ -2629,3 +2629,4 @@ GLIBC_2.34 tss_get F
|
||||
GLIBC_2.34 tss_set F
|
||||
GLIBC_2.35 __memcmpeq F
|
||||
GLIBC_2.35 _dl_find_object F
|
||||
GLIBC_2.35 epoll_pwait2 F
|
||||
|
Loading…
Reference in New Issue
Block a user