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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <string.h>
#include <time.h>
#include "cras_util.h"
#include "packet_status_logger.h"
void packet_status_logger_init(struct packet_status_logger *logger)
{
memset(logger->data, 0, PACKET_STATUS_LEN_BYTES);
logger->size = PACKET_STATUS_LEN_BYTES * 8;
logger->wp = 0;
logger->num_wraps = 0;
clock_gettime(CLOCK_MONOTONIC_RAW, &logger->ts);
}
void packet_status_logger_update(struct packet_status_logger *logger, bool val)
{
if (val) {
logger->data[logger->wp / 8] |= 1UL << (logger->wp % 8);
} else {
logger->data[logger->wp / 8] &= ~(1UL << (logger->wp % 8));
}
logger->wp++;
if (logger->wp >= logger->size) {
logger->wp %= logger->size;
logger->num_wraps += 1;
}
if (logger->wp == 0 || (logger->num_wraps == 0 && logger->wp == 1))
clock_gettime(CLOCK_MONOTONIC_RAW, &logger->ts);
}
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