45 lines
1.8 KiB
C#
45 lines
1.8 KiB
C#
using System;
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namespace Unosquare.RaspberryIO.Abstractions {
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/// <summary>
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/// Interface for timing methods using interop.
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/// </summary>
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public interface ITiming {
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/// <summary>
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/// This returns a number representing the number of milliseconds since system boot.
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/// </summary>
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/// <returns>The milliseconds since system boot.</returns>
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UInt32 Milliseconds {
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get;
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}
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/// <summary>
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/// This returns a number representing the number of microseconds since system boot.
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/// </summary>
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/// <returns>The microseconds since system boot.</returns>
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UInt32 Microseconds {
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get;
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}
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/// <summary>
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/// This causes program execution to pause for at least how long milliseconds.
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/// Due to the multi-tasking nature of Linux it could be longer.
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/// Note that the maximum delay is an unsigned 32-bit integer or approximately 49 days.
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/// </summary>
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/// <param name="millis">The number of milliseconds to sleep.</param>
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void SleepMilliseconds(UInt32 millis);
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/// <summary>
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/// This causes program execution to pause for at least how long microseconds.
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/// Due to the multi-tasking nature of Linux it could be longer.
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/// Note that the maximum delay is an unsigned 32-bit integer microseconds or approximately 71 minutes.
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/// Delays under 100 microseconds are timed using a hard-coded loop continually polling the system time,
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/// Delays over 100 microseconds are done using the system nanosleep() function –
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/// You may need to consider the implications of very short delays on the overall performance of the system,
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/// especially if using threads.
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/// </summary>
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/// <param name="micros">The number of microseconds to sleep.</param>
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void SleepMicroseconds(UInt32 micros);
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}
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}
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