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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/time.h $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2012,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef __TIME_H
#define __TIME_H
#include <stdint.h>
// POSIX structure for time (sec / nsec pairs).
struct timespec
{
uint64_t tv_sec;
uint64_t tv_nsec;
};
typedef struct timespec timespec_t;
// POSIX clock IDs.
typedef enum
{
CLOCK_REALTIME = 0,
CLOCK_MONOTONIC = 1
} clockid_t;
/** @fn clock_gettime
* @brief Reads the clock value from a POSIX clock.
*
* @note Currently, we only support CLOCK_MONOTONIC.
* CLOCK_REALTIME requires synchronization of the timebase with the FSP
* RTC.
*
* @param[in] clk_id - The clock ID to read.
* @param[out] tp - The timespec struct to store the clock value in.
*
* @return 0 or -(errno).
* @retval 0 - SUCCESS.
* @retval -EINVAL - Invalid clock requested.
* @retval -EFAULT - NULL ptr given for timespec struct.
*
*/
int clock_gettime(clockid_t clk_id, timespec_t* tp);
#endif
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