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5f3a7ebc35
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>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/* 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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