fibersTest.cpp

#define WIN32_LEAN_AND_MEAN
#define NOMINMAX
#include <windows.h>
#include <stdio.h>
#include <stdint.h>
#include <array>
#include <algorithm>

void printStack( const char* what )
{
	ULONG_PTR lo, high;
	GetCurrentThreadStackLimits( &lo, &high );
	printf( "%s: %p - %p\n", what, lo, high );
}

void* fiberMain, *fiberSecondary;

constexpr size_t cbBuffer = 24;

void __stdcall fiberProc( void* lpFiberParameter )
{
	std::array<uint8_t, cbBuffer> localBuffer;
	std::copy_n( (const uint8_t*)lpFiberParameter, cbBuffer, localBuffer.begin() );

	printStack( "fiber" );
	SwitchToFiber( fiberMain );
}

int main()
{
	printStack( "start" );

	std::array<uint8_t, cbBuffer> localBuffer = { 0x4e, 0x65, 0x76, 0x65, 0x72, 0x20, 0x67, 0x6f, 0x6e, 0x6e, 0x61, 0x20, 0x67, 0x69, 0x76, 0x65, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x75, 0x70, 0x2c };

	fiberMain = ConvertThreadToFiber( nullptr );
	fiberSecondary = CreateFiber( 0, &fiberProc, localBuffer.data() );

	printStack( "converted" );

	SwitchToFiber( fiberSecondary );

	printStack( "back to main" );
	return 0;
}