#define WORLD_BEGIN_MARKER 1243635
#define WORLD_END_MARKER 5365456
#define CLIENT_BEGIN_MARKER 42345 
#define CLIENT_END_MARKER 8752845

#define EXIT_CONNECTION_FAILED 1
#define EXIT_PROTOCOL_ERROR 2
#define EXIT_SOCKET_READ_FAILED 3 
#define EXIT_SOCKET_CLOSED 4
#define EXIT_OPEN_SOCKET_FAILED 5
#define EXIT_CREATE_MUTEX_FAILED 6