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//===-- Implementation of timespec_get for gpu ----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/time/timespec_get.h"
#include "hdr/time_macros.h"
#include "src/__support/common.h"
#include "src/__support/macros/config.h"
#include "src/__support/time/gpu/time_utils.h"
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(int, timespec_get, (struct timespec * ts, int base)) {
if (base != TIME_MONOTONIC || !ts)
return 0;
uint64_t ns_per_tick = TICKS_PER_SEC / GPU_CLOCKS_PER_SEC;
uint64_t ticks = gpu::fixed_frequency_clock();
ts->tv_nsec = (ticks * ns_per_tick) % TICKS_PER_SEC;
ts->tv_sec = (ticks * ns_per_tick) / TICKS_PER_SEC;
return base;
}
} // namespace LIBC_NAMESPACE_DECL
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