static void Demo()
{
var mappingName = "__mappedMem";
uint bytes = 1024;
try
{
using (var map1 = new SharedMemory.SharedMemory(mappingName, bytes))
using (var map2 = new SharedMemory.SharedMemory(mappingName))
{
Console.WriteLine("Created a shared memory...");
//Console.WriteLine($"Handle: {map1.FileHandle}");
Console.Write($"Poiter: {map1.FilePtr}");
Console.WriteLine();
Console.WriteLine("Subscribed to a shared memory...");
//Console.WriteLine($"Handle: {map2.FileHandle}");
Console.WriteLine($"Poiter: {map2.FilePtr}");
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
unsafe static void Run()
{
using (var mapping = new SharedMemory.SharedMemory(_Name))
{
Console.WriteLine($"P2 subscribed to shared memory.");
void * ptr = mapping.FilePtr.ToPointer();
SampleStruct *structPtr = (SampleStruct *)ptr; // Amazing how naturally the memory mapping maps to unsafe structs
Console.WriteLine();
Console.WriteLine($"P2 reading values from memory");
Console.WriteLine($"P2 Int: {structPtr->IntField}");
Console.WriteLine($"P2 Char: {structPtr->CharField}");
Console.WriteLine($"P2 Array[0]: {structPtr->FloatArrayField[0]}");
Console.WriteLine($"P2 Array[1]: {structPtr->FloatArrayField[1]}");
Console.WriteLine($"P2 Array[2]: {structPtr->FloatArrayField[3]}");
Console.WriteLine();
Console.WriteLine($"P2 changing values...");
structPtr->IntField = structPtr->IntField + 1;
structPtr->CharField = 'A';
structPtr->FloatArrayField[0] = 200;
structPtr->FloatArrayField[1] = 306;
structPtr->FloatArrayField[2] = 202;
Console.WriteLine($"P2 Values changed. P1 can read values now");
}
}
unsafe static void Run()
{
using (var mapping = new SharedMemory.SharedMemory(_Name, _Size))
{
Console.WriteLine($"P1 created a map named {_Name} of {_Size} bytes.");
Console.WriteLine($"P1 writing to memory...");
void * ptr = mapping.FilePtr.ToPointer();
SampleStruct *structPtr = (SampleStruct *)ptr; // This is amazing! mapped memory can be directly cast in to an unsafe struct!
structPtr->IntField = 656;
structPtr->CharField = 'M';
structPtr->FloatArrayField[0] = 100;
structPtr->FloatArrayField[2] = 101;
Console.WriteLine($"P1 written to memory.");
Console.WriteLine($"P2 can read and edit now!");
Console.WriteLine("P1 Press 'c' when done...");
char c;
do
{
c = Console.ReadKey().KeyChar;
} while (c != 'c');
Console.WriteLine();
Console.WriteLine($"P1 reading values from memory");
Console.WriteLine($"P1 Int: {structPtr->IntField}");
Console.WriteLine($"P1 Char: {structPtr->CharField}");
Console.WriteLine($"P1 Array[0]: {structPtr->FloatArrayField[0]}");
Console.WriteLine($"P1 Array[1]: {structPtr->FloatArrayField[1]}");
Console.WriteLine($"P1 Array[2]: {structPtr->FloatArrayField[2]}");
}
}
