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/* Copyright (c) 2013-2018, Linaro Limited
* Copyright (c) 2020-2023, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <odp_posix_extensions.h>
#include <odp/api/align.h>
#include <odp/api/hints.h>
#include <odp/api/time_types.h>
#include <odp/api/abi/time_inlines.h>
#include <odp_debug_internal.h>
#include <odp_init_internal.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
typedef struct _odp_time_global_t {
struct timespec start_time;
} _odp_time_global_t;
_odp_time_global_t _odp_time_glob;
static inline uint64_t time_diff_nsec(struct timespec *t2, struct timespec *t1)
{
struct timespec diff;
uint64_t nsec;
diff.tv_sec = t2->tv_sec - t1->tv_sec;
diff.tv_nsec = t2->tv_nsec - t1->tv_nsec;
if (diff.tv_nsec < 0) {
diff.tv_nsec += ODP_TIME_SEC_IN_NS;
diff.tv_sec -= 1;
}
nsec = (diff.tv_sec * ODP_TIME_SEC_IN_NS) + diff.tv_nsec;
return nsec;
}
#include <odp/visibility_begin.h>
odp_time_t _odp_time_cur(void)
{
int ret;
odp_time_t time;
struct timespec sys_time;
struct timespec *start_time = &_odp_time_glob.start_time;
ret = clock_gettime(CLOCK_MONOTONIC_RAW, &sys_time);
if (odp_unlikely(ret != 0))
_ODP_ABORT("clock_gettime() failed\n");
time.nsec = time_diff_nsec(&sys_time, start_time);
return time;
}
uint64_t _odp_time_res(void)
{
int ret;
struct timespec tres;
ret = clock_getres(CLOCK_MONOTONIC_RAW, &tres);
if (odp_unlikely(ret != 0))
_ODP_ABORT("clock_getres() failed\n");
return ODP_TIME_SEC_IN_NS / (uint64_t)tres.tv_nsec;
}
#include <odp/visibility_end.h>
int _odp_time_init_global(void)
{
struct timespec *start_time;
int ret = 0;
_odp_time_global_t *global = &_odp_time_glob;
memset(global, 0, sizeof(_odp_time_global_t));
start_time = &global->start_time;
start_time->tv_sec = 0;
start_time->tv_nsec = 0;
ret = clock_gettime(CLOCK_MONOTONIC_RAW, start_time);
if (ret)
_ODP_ERR("clock_gettime() failed: %d\n", ret);
return ret;
}
int _odp_time_term_global(void)
{
return 0;
}
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