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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.
*/
#include "utils/s2n_timer.h"
#include "tls/s2n_config.h"
#include "utils/s2n_result.h"
#include "utils/s2n_safety.h"
S2N_RESULT s2n_timer_start(struct s2n_config *config, struct s2n_timer *timer)
{
RESULT_ENSURE(config->monotonic_clock(config->monotonic_clock_ctx, &timer->time) >= S2N_SUCCESS,
S2N_ERR_CANCELLED);
return S2N_RESULT_OK;
}
S2N_RESULT s2n_timer_elapsed(struct s2n_config *config, struct s2n_timer *timer, uint64_t *nanoseconds)
{
uint64_t current_time;
RESULT_ENSURE(config->monotonic_clock(config->monotonic_clock_ctx, ¤t_time) >= S2N_SUCCESS,
S2N_ERR_CANCELLED);
*nanoseconds = current_time - timer->time;
return S2N_RESULT_OK;
}
S2N_RESULT s2n_timer_reset(struct s2n_config *config, struct s2n_timer *timer, uint64_t *nanoseconds)
{
uint64_t previous_time = timer->time;
RESULT_GUARD(s2n_timer_start(config, timer));
*nanoseconds = timer->time - previous_time;
return S2N_RESULT_OK;
}
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