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33 lines
823 B
C++
33 lines
823 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <errno.h>
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#include <poll.h>
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#include <sys/time.h>
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#include <syscall.h>
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extern "C" {
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// https://pubs.opengroup.org/onlinepubs/9699919799/functions/poll.html
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int poll(pollfd* fds, nfds_t nfds, int timeout_ms)
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{
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timespec timeout;
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timespec* timeout_ts = &timeout;
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if (timeout_ms < 0)
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timeout_ts = nullptr;
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else
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timeout = { timeout_ms / 1000, (timeout_ms % 1000) * 1'000'000 };
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return ppoll(fds, nfds, timeout_ts, nullptr);
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}
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int ppoll(pollfd* fds, nfds_t nfds, const timespec* timeout, const sigset_t* sigmask)
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{
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Syscall::SC_poll_params params { fds, nfds, timeout, sigmask };
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int rc = syscall(SC_poll, ¶ms);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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}
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