/// <summary>
/// Initializes a new instance of the <see cref="MemoryGpioConnectionDriver"/> class.
/// </summary>
public MemoryGpioConnectionDriver()
{
using (var memoryFile = UnixFile.Open("/dev/mem", UnixFileMode.ReadWrite | UnixFileMode.Synchronized)) {
gpioAddress = MemoryMap.Create(
IntPtr.Zero,
Interop.BCM2835_BLOCK_SIZE,
MemoryProtection.ReadWrite,
MemoryFlags.Shared,
memoryFile.Descriptor,
GetProcessorBaseAddress(Board.Current.Processor));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GpioConnectionDriver"/> class.
/// </summary>
public GpioConnectionDriver()
{
using (var memoryFile = UnixFile.Open("/dev/mem", UnixFileMode.ReadWrite | UnixFileMode.Synchronized)) {
gpioAddress = MemoryMap.Create(
IntPtr.Zero,
Interop.BCM2835_BLOCK_SIZE,
MemoryProtection.ReadWrite,
MemoryFlags.Shared,
memoryFile.Descriptor,
Board.Current.Model == '2' ? Interop.BCM2836_GPIO_BASE : Interop.BCM2835_GPIO_BASE);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GpioConnectionDriver" /> class.
/// </summary>
/// <param name="threadFactory">The thread factory.</param>
public GpioConnectionDriver(IThreadFactory threadFactory = null)
{
this.thread = ThreadFactory.EnsureThreadFactory(threadFactory).Create();
using (var memoryFile = UnixFile.Open("/dev/mem", UnixFileMode.ReadWrite | UnixFileMode.Synchronized))
{
this.gpioAddress = MemoryMap.Create(
IntPtr.Zero,
Interop.Bcm2835BlockSize,
MemoryProtection.ReadWrite,
MemoryFlags.Shared,
memoryFile.Descriptor,
GetProcessorBaseAddress(Board.Current.Processor));
}
}
static void Main()
{
var sampleBigDataIn = CreateBigDataParent(10000);
Console.WriteLine(
$"Created '{sampleBigDataIn.Description}'");
Console.WriteLine(
$"with a total SomeDouble: {sampleBigDataIn.BigDataChildren.Sum(x => x.SomeDouble)}");
var stopWatch = new Stopwatch();
stopWatch.Start();
var memoryMap = new MemoryMap <BigDataParent>("SomeKey");
memoryMap.Create(sampleBigDataIn);
Console.WriteLine(
$"memoryMap.Create elapsed time: {stopWatch.Elapsed}");
var sampleBigDataOut = memoryMap.Load();
Console.WriteLine(
$"Create and Load elapsed time: {stopWatch.Elapsed}");
stopWatch.Stop();
var childId = sampleBigDataIn.BigDataChildren[0].Id;
Console.WriteLine($"BigDataParent comparison check for childId: {childId}");
var totalSomeDoubleIn = sampleBigDataIn.BigDataChildren
.Where(x => x.Id.Equals(childId)).Sum(x => x.SomeDouble);
Console.WriteLine($"totalSomeDoubleIn : {totalSomeDoubleIn}");
var totalSomeDoubleOut = sampleBigDataOut.BigDataChildren
.Where(x => x.Id.Equals(childId)).Sum(x => x.SomeDouble);
Console.WriteLine($"totalSomeDoubleOut: {totalSomeDoubleOut}");
Console.ReadKey();
}