mrvaldes

using Mono.Unix.Native;
using System.IO;

static bool TryLockProcess(string file_to_lock)
{
	int pid = Syscall.getpid();
	int fd = Syscall.open(file_to_lock, OpenFlags.O_CREAT | OpenFlags.O_RDWR, FilePermissions.DEFFILEMODE);
	if (fd > 0) {
		// a write (exclusive) lock
		Flock wl;