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In a few locations integer typed variables where used where their corresponding enum would be a better choice.

In a few locations integer typed variables where used where their corresponding enum would be a better choice.
The ape_socket.states struct had origially 4 uint8_t fields. That fits nice in memory. By changing this into enums, We get a better typechecking, but enums are int's which use more memory then uint8_t's. By 'packing' that struct, we can have the cake and eat it as well.

Apperently GCC/Clang does not handle #pragma packed and Visual studio does not handle __attribute__. These extra ifdef's should do the tricks. (only tested with gcc and clang on linux)

pahole with gcc gives:
struct {
                enum ape_socket_flags flags;             /*   108     1 */
                enum ape_socket_proto proto;             /*   109     1 */
                enum ape_socket_type type;               /*   110     1 */
                enum ape_socket_state state;             /*   111     1 */
        } states;                                        /*   108     4 */

pahole with clang gives:
        struct {
        public:

                enum ape_socket_flags flags;             /*   108     1 */
                enum ape_socket_proto proto;             /*   109     1 */
                enum ape_socket_type type;               /*   110     1 */
                enum ape_socket_state state;             /*   111     1 */
        } states;                                        /*   108     4 */
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