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// SPDX-License-Identifier: BSD-2-Clause
#ifndef __LIBBASE_TIMEOUT_H
#define __LIBBASE_TIMEOUT_H
#include <stdint.h>
struct timeout {
uint64_t remaining;
uint64_t last;
};
/* Nested deadlines share the uptime counter, or timer0 in free-running mode.
* Without uptime, do not reprogram timer0 (e.g. busy_wait) while a deadline is
* active, and poll at least once per 2^32 system-clock cycles. */
void timeout_start(struct timeout *timeout, unsigned int us);
int timeout_expired(struct timeout *timeout);
#endif