70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
#pragma once
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#include "acpi/discovery.h"
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namespace apic {
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struct duration_t {
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uint64_t timer_count;
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};
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struct timestamp_t {
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uint64_t timer_count;
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};
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struct seconds_nanoseconds_t {
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uint64_t seconds;
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uint64_t nanoseconds;
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};
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constexpr duration_t operator+(duration_t left, duration_t right) {
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return duration_t{left.timer_count + right.timer_count};
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}
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constexpr duration_t operator-(duration_t left, duration_t right) {
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return duration_t{left.timer_count - right.timer_count};
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}
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constexpr duration_t operator*(duration_t duration, uint64_t scalar) {
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return duration_t{duration.timer_count * scalar};
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}
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constexpr duration_t operator*(uint64_t scalar, duration_t duration) {
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return duration_t{duration.timer_count * scalar};
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}
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constexpr timestamp_t operator+(timestamp_t timestamp, duration_t duration) {
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return timestamp_t{timestamp.timer_count + duration.timer_count};
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}
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constexpr timestamp_t operator+(duration_t duration, timestamp_t timestamp) {
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return timestamp_t{timestamp.timer_count + duration.timer_count};
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}
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constexpr timestamp_t operator-(timestamp_t timestamp, duration_t duration) {
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return timestamp_t{timestamp.timer_count - duration.timer_count};
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}
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constexpr duration_t operator-(timestamp_t left, timestamp_t right) {
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return duration_t{left.timer_count - right.timer_count};
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}
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bool calibrateTimer(const acpi::discovery_result_t& discovery);
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duration_t seconds(uint64_t count);
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duration_t milliseconds(uint64_t count);
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duration_t microseconds(uint64_t count);
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duration_t nanoseconds(uint64_t count);
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seconds_nanoseconds_t toSecondsAndNanoseconds(duration_t duration);
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void busyWait(duration_t duration);
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timestamp_t now();
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// TODO: when dynamic allocation and lists are available
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// struct Timer {};
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//
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// Timer getCoreTimerInstance();
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} // namespace apic
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