34 lines · cpp
1//===-- Linux implementation of the time function -------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/time/time_func.h"10 11#include "hdr/time_macros.h"12#include "src/__support/common.h"13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include "src/__support/time/clock_gettime.h"16 17namespace LIBC_NAMESPACE_DECL {18// avoid inconsitent clang-format behavior19using time_ptr_t = time_t *;20LLVM_LIBC_FUNCTION(time_t, time, (time_ptr_t tp)) {21 struct timespec ts;22 auto result = internal::clock_gettime(CLOCK_REALTIME, &ts);23 if (!result.has_value()) {24 libc_errno = result.error();25 return -1;26 }27 28 if (tp != nullptr)29 *tp = time_t(ts.tv_sec);30 return time_t(ts.tv_sec);31}32 33} // namespace LIBC_NAMESPACE_DECL34