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-rw-r--r--src/enet/enet.h540
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diff --git a/src/enet/enet.h b/src/enet/enet.h
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-/**
- @file enet.h
- @brief ENet public header file
-*/
-#ifndef __ENET_ENET_H__
-#define __ENET_ENET_H__
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#include <stdlib.h>
-
-#ifdef WIN32
-#include "enet/win32.h"
-#else
-#include "enet/unix.h"
-#endif
-
-#include "enet/types.h"
-#include "enet/protocol.h"
-#include "enet/list.h"
-#include "enet/callbacks.h"
-
-#define ENET_VERSION_MAJOR 1
-#define ENET_VERSION_MINOR 3
-#define ENET_VERSION_PATCH 0
-#define ENET_VERSION_CREATE(major, minor, patch) (((major)<<16) | ((minor)<<8) | (patch))
-#define ENET_VERSION ENET_VERSION_CREATE(ENET_VERSION_MAJOR, ENET_VERSION_MINOR, ENET_VERSION_PATCH)
-
-typedef enet_uint32 ENetVersion;
-
-typedef enum _ENetSocketType
-{
- ENET_SOCKET_TYPE_STREAM = 1,
- ENET_SOCKET_TYPE_DATAGRAM = 2
-} ENetSocketType;
-
-typedef enum _ENetSocketWait
-{
- ENET_SOCKET_WAIT_NONE = 0,
- ENET_SOCKET_WAIT_SEND = (1 << 0),
- ENET_SOCKET_WAIT_RECEIVE = (1 << 1)
-} ENetSocketWait;
-
-typedef enum _ENetSocketOption
-{
- ENET_SOCKOPT_NONBLOCK = 1,
- ENET_SOCKOPT_BROADCAST = 2,
- ENET_SOCKOPT_RCVBUF = 3,
- ENET_SOCKOPT_SNDBUF = 4,
- ENET_SOCKOPT_REUSEADDR = 5
-} ENetSocketOption;
-
-enum
-{
- ENET_HOST_ANY = 0, /**< specifies the default server host */
- ENET_HOST_BROADCAST = 0xFFFFFFFF, /**< specifies a subnet-wide broadcast */
-
- ENET_PORT_ANY = 0 /**< specifies that a port should be automatically chosen */
-};
-
-/**
- * Portable internet address structure.
- *
- * The host must be specified in network byte-order, and the port must be in host
- * byte-order. The constant ENET_HOST_ANY may be used to specify the default
- * server host. The constant ENET_HOST_BROADCAST may be used to specify the
- * broadcast address (255.255.255.255). This makes sense for enet_host_connect,
- * but not for enet_host_create. Once a server responds to a broadcast, the
- * address is updated from ENET_HOST_BROADCAST to the server's actual IP address.
- */
-typedef struct _ENetAddress
-{
- enet_uint32 host;
- enet_uint16 port;
-} ENetAddress;
-
-/**
- * Packet flag bit constants.
- *
- * The host must be specified in network byte-order, and the port must be in
- * host byte-order. The constant ENET_HOST_ANY may be used to specify the
- * default server host.
-
- @sa ENetPacket
-*/
-typedef enum _ENetPacketFlag
-{
- /** packet must be received by the target peer and resend attempts should be
- * made until the packet is delivered */
- ENET_PACKET_FLAG_RELIABLE = (1 << 0),
- /** packet will not be sequenced with other packets
- * not supported for reliable packets
- */
- ENET_PACKET_FLAG_UNSEQUENCED = (1 << 1),
- /** packet will not allocate data, and user must supply it instead */
- ENET_PACKET_FLAG_NO_ALLOCATE = (1 << 2)
-} ENetPacketFlag;
-
-struct _ENetPacket;
-typedef void (ENET_CALLBACK * ENetPacketFreeCallback) (struct _ENetPacket *);
-
-/**
- * ENet packet structure.
- *
- * An ENet data packet that may be sent to or received from a peer. The shown
- * fields should only be read and never modified. The data field contains the
- * allocated data for the packet. The dataLength fields specifies the length
- * of the allocated data. The flags field is either 0 (specifying no flags),
- * or a bitwise-or of any combination of the following flags:
- *
- * ENET_PACKET_FLAG_RELIABLE - packet must be received by the target peer
- * and resend attempts should be made until the packet is delivered
- *
- * ENET_PACKET_FLAG_UNSEQUENCED - packet will not be sequenced with other packets
- * (not supported for reliable packets)
- *
- * ENET_PACKET_FLAG_NO_ALLOCATE - packet will not allocate data, and user must supply it instead
-
- @sa ENetPacketFlag
- */
-typedef struct _ENetPacket
-{
- size_t referenceCount; /**< internal use only */
- enet_uint32 flags; /**< bitwise-or of ENetPacketFlag constants */
- enet_uint8 * data; /**< allocated data for packet */
- size_t dataLength; /**< length of data */
- ENetPacketFreeCallback freeCallback; /**< function to be called when the packet is no longer in use */
-} ENetPacket;
-
-typedef struct _ENetAcknowledgement
-{
- ENetListNode acknowledgementList;
- enet_uint32 sentTime;
- ENetProtocol command;
-} ENetAcknowledgement;
-
-typedef struct _ENetOutgoingCommand
-{
- ENetListNode outgoingCommandList;
- enet_uint16 reliableSequenceNumber;
- enet_uint16 unreliableSequenceNumber;
- enet_uint32 sentTime;
- enet_uint32 roundTripTimeout;
- enet_uint32 roundTripTimeoutLimit;
- enet_uint32 fragmentOffset;
- enet_uint16 fragmentLength;
- enet_uint16 sendAttempts;
- ENetProtocol command;
- ENetPacket * packet;
-} ENetOutgoingCommand;
-
-typedef struct _ENetIncomingCommand
-{
- ENetListNode incomingCommandList;
- enet_uint16 reliableSequenceNumber;
- enet_uint16 unreliableSequenceNumber;
- ENetProtocol command;
- enet_uint32 fragmentCount;
- enet_uint32 fragmentsRemaining;
- enet_uint32 * fragments;
- ENetPacket * packet;
-} ENetIncomingCommand;
-
-typedef enum _ENetPeerState
-{
- ENET_PEER_STATE_DISCONNECTED = 0,
- ENET_PEER_STATE_CONNECTING = 1,
- ENET_PEER_STATE_ACKNOWLEDGING_CONNECT = 2,
- ENET_PEER_STATE_CONNECTION_PENDING = 3,
- ENET_PEER_STATE_CONNECTION_SUCCEEDED = 4,
- ENET_PEER_STATE_CONNECTED = 5,
- ENET_PEER_STATE_DISCONNECT_LATER = 6,
- ENET_PEER_STATE_DISCONNECTING = 7,
- ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT = 8,
- ENET_PEER_STATE_ZOMBIE = 9
-} ENetPeerState;
-
-#ifndef ENET_BUFFER_MAXIMUM
-#define ENET_BUFFER_MAXIMUM (1 + 2 * ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS)
-#endif
-
-enum
-{
- ENET_HOST_RECEIVE_BUFFER_SIZE = 256 * 1024,
- ENET_HOST_SEND_BUFFER_SIZE = 256 * 1024,
- ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL = 1000,
- ENET_HOST_DEFAULT_MTU = 1400,
-
- ENET_PEER_DEFAULT_ROUND_TRIP_TIME = 500,
- ENET_PEER_DEFAULT_PACKET_THROTTLE = 32,
- ENET_PEER_PACKET_THROTTLE_SCALE = 32,
- ENET_PEER_PACKET_THROTTLE_COUNTER = 7,
- ENET_PEER_PACKET_THROTTLE_ACCELERATION = 2,
- ENET_PEER_PACKET_THROTTLE_DECELERATION = 2,
- ENET_PEER_PACKET_THROTTLE_INTERVAL = 5000,
- ENET_PEER_PACKET_LOSS_SCALE = (1 << 16),
- ENET_PEER_PACKET_LOSS_INTERVAL = 10000,
- ENET_PEER_WINDOW_SIZE_SCALE = 64 * 1024,
- ENET_PEER_TIMEOUT_LIMIT = 32,
- ENET_PEER_TIMEOUT_MINIMUM = 5000,
- ENET_PEER_TIMEOUT_MAXIMUM = 30000,
- ENET_PEER_PING_INTERVAL = 500,
- ENET_PEER_UNSEQUENCED_WINDOWS = 64,
- ENET_PEER_UNSEQUENCED_WINDOW_SIZE = 1024,
- ENET_PEER_FREE_UNSEQUENCED_WINDOWS = 32,
- ENET_PEER_RELIABLE_WINDOWS = 16,
- ENET_PEER_RELIABLE_WINDOW_SIZE = 0x1000,
- ENET_PEER_FREE_RELIABLE_WINDOWS = 8
-};
-
-typedef struct _ENetChannel
-{
- enet_uint16 outgoingReliableSequenceNumber;
- enet_uint16 outgoingUnreliableSequenceNumber;
- enet_uint16 usedReliableWindows;
- enet_uint16 reliableWindows [ENET_PEER_RELIABLE_WINDOWS];
- enet_uint16 incomingReliableSequenceNumber;
- ENetList incomingReliableCommands;
- ENetList incomingUnreliableCommands;
-} ENetChannel;
-
-/**
- * An ENet peer which data packets may be sent or received from.
- *
- * No fields should be modified unless otherwise specified.
- */
-typedef struct _ENetPeer
-{
- ENetListNode dispatchList;
- struct _ENetHost * host;
- enet_uint16 outgoingPeerID;
- enet_uint16 incomingPeerID;
- enet_uint32 connectID;
- enet_uint8 outgoingSessionID;
- enet_uint8 incomingSessionID;
- ENetAddress address; /**< Internet address of the peer */
- void * data; /**< Application private data, may be freely modified */
- ENetPeerState state;
- ENetChannel * channels;
- size_t channelCount; /**< Number of channels allocated for communication with peer */
- enet_uint32 incomingBandwidth; /**< Downstream bandwidth of the client in bytes/second */
- enet_uint32 outgoingBandwidth; /**< Upstream bandwidth of the client in bytes/second */
- enet_uint32 incomingBandwidthThrottleEpoch;
- enet_uint32 outgoingBandwidthThrottleEpoch;
- enet_uint32 incomingDataTotal;
- enet_uint32 outgoingDataTotal;
- enet_uint32 lastSendTime;
- enet_uint32 lastReceiveTime;
- enet_uint32 nextTimeout;
- enet_uint32 earliestTimeout;
- enet_uint32 packetLossEpoch;
- enet_uint32 packetsSent;
- enet_uint32 packetsLost;
- enet_uint32 packetLoss; /**< mean packet loss of reliable packets as a ratio with respect to the constant ENET_PEER_PACKET_LOSS_SCALE */
- enet_uint32 packetLossVariance;
- enet_uint32 packetThrottle;
- enet_uint32 packetThrottleLimit;
- enet_uint32 packetThrottleCounter;
- enet_uint32 packetThrottleEpoch;
- enet_uint32 packetThrottleAcceleration;
- enet_uint32 packetThrottleDeceleration;
- enet_uint32 packetThrottleInterval;
- enet_uint32 lastRoundTripTime;
- enet_uint32 lowestRoundTripTime;
- enet_uint32 lastRoundTripTimeVariance;
- enet_uint32 highestRoundTripTimeVariance;
- enet_uint32 roundTripTime; /**< mean round trip time (RTT), in milliseconds, between sending a reliable packet and receiving its acknowledgement */
- enet_uint32 roundTripTimeVariance;
- enet_uint32 mtu;
- enet_uint32 windowSize;
- enet_uint32 reliableDataInTransit;
- enet_uint16 outgoingReliableSequenceNumber;
- ENetList acknowledgements;
- ENetList sentReliableCommands;
- ENetList sentUnreliableCommands;
- ENetList outgoingReliableCommands;
- ENetList outgoingUnreliableCommands;
- ENetList dispatchedCommands;
- int needsDispatch;
- enet_uint16 incomingUnsequencedGroup;
- enet_uint16 outgoingUnsequencedGroup;
- enet_uint32 unsequencedWindow [ENET_PEER_UNSEQUENCED_WINDOW_SIZE / 32];
- enet_uint32 eventData;
-} ENetPeer;
-
-/** An ENet packet compressor for compressing UDP packets before socket sends or receives.
- */
-typedef struct _ENetCompressor
-{
- /** Context data for the compressor. Must be non-NULL. */
- void * context;
- /** Compresses from inBuffers[0:inBufferCount-1], containing inLimit bytes, to outData, outputting at most outLimit bytes. Should return 0 on failure. */
- size_t (ENET_CALLBACK * compress) (void * context, const ENetBuffer * inBuffers, size_t inBufferCount, size_t inLimit, enet_uint8 * outData, size_t outLimit);
- /** Decompresses from inData, containing inLimit bytes, to outData, outputting at most outLimit bytes. Should return 0 on failure. */
- size_t (ENET_CALLBACK * decompress) (void * context, const enet_uint8 * inData, size_t inLimit, enet_uint8 * outData, size_t outLimit);
- /** Destroys the context when compression is disabled or the host is destroyed. May be NULL. */
- void (ENET_CALLBACK * destroy) (void * context);
-} ENetCompressor;
-
-/** Callback that computes the checksum of the data held in buffers[0:bufferCount-1] */
-typedef enet_uint32 (ENET_CALLBACK * ENetChecksumCallback) (const ENetBuffer * buffers, size_t bufferCount);
-
-/** An ENet host for communicating with peers.
- *
- * No fields should be modified unless otherwise stated.
-
- @sa enet_host_create()
- @sa enet_host_destroy()
- @sa enet_host_connect()
- @sa enet_host_service()
- @sa enet_host_flush()
- @sa enet_host_broadcast()
- @sa enet_host_compress()
- @sa enet_host_compress_with_range_coder()
- @sa enet_host_channel_limit()
- @sa enet_host_bandwidth_limit()
- @sa enet_host_bandwidth_throttle()
- */
-typedef struct _ENetHost
-{
- ENetSocket socket;
- ENetAddress address; /**< Internet address of the host */
- enet_uint32 incomingBandwidth; /**< downstream bandwidth of the host */
- enet_uint32 outgoingBandwidth; /**< upstream bandwidth of the host */
- enet_uint32 bandwidthThrottleEpoch;
- enet_uint32 mtu;
- enet_uint32 randomSeed;
- int recalculateBandwidthLimits;
- ENetPeer * peers; /**< array of peers allocated for this host */
- size_t peerCount; /**< number of peers allocated for this host */
- size_t channelLimit; /**< maximum number of channels allowed for connected peers */
- enet_uint32 serviceTime;
- ENetList dispatchQueue;
- int continueSending;
- size_t packetSize;
- enet_uint16 headerFlags;
- ENetProtocol commands [ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS];
- size_t commandCount;
- ENetBuffer buffers [ENET_BUFFER_MAXIMUM];
- size_t bufferCount;
- ENetChecksumCallback checksum; /**< callback the user can set to enable packet checksums for this host */
- ENetCompressor compressor;
- enet_uint8 packetData [2][ENET_PROTOCOL_MAXIMUM_MTU];
- ENetAddress receivedAddress;
- enet_uint8 * receivedData;
- size_t receivedDataLength;
- enet_uint32 totalSentData; /**< total data sent, user should reset to 0 as needed to prevent overflow */
- enet_uint32 totalSentPackets; /**< total UDP packets sent, user should reset to 0 as needed to prevent overflow */
- enet_uint32 totalReceivedData; /**< total data received, user should reset to 0 as needed to prevent overflow */
- enet_uint32 totalReceivedPackets; /**< total UDP packets received, user should reset to 0 as needed to prevent overflow */
-} ENetHost;
-
-/**
- * An ENet event type, as specified in @ref ENetEvent.
- */
-typedef enum _ENetEventType
-{
- /** no event occurred within the specified time limit */
- ENET_EVENT_TYPE_NONE = 0,
-
- /** a connection request initiated by enet_host_connect has completed.
- * The peer field contains the peer which successfully connected.
- */
- ENET_EVENT_TYPE_CONNECT = 1,
-
- /** a peer has disconnected. This event is generated on a successful
- * completion of a disconnect initiated by enet_pper_disconnect, if
- * a peer has timed out, or if a connection request intialized by
- * enet_host_connect has timed out. The peer field contains the peer
- * which disconnected. The data field contains user supplied data
- * describing the disconnection, or 0, if none is available.
- */
- ENET_EVENT_TYPE_DISCONNECT = 2,
-
- /** a packet has been received from a peer. The peer field specifies the
- * peer which sent the packet. The channelID field specifies the channel
- * number upon which the packet was received. The packet field contains
- * the packet that was received; this packet must be destroyed with
- * enet_packet_destroy after use.
- */
- ENET_EVENT_TYPE_RECEIVE = 3
-} ENetEventType;
-
-/**
- * An ENet event as returned by enet_host_service().
-
- @sa enet_host_service
- */
-typedef struct _ENetEvent
-{
- ENetEventType type; /**< type of the event */
- ENetPeer * peer; /**< peer that generated a connect, disconnect or receive event */
- enet_uint8 channelID; /**< channel on the peer that generated the event, if appropriate */
- enet_uint32 data; /**< data associated with the event, if appropriate */
- ENetPacket * packet; /**< packet associated with the event, if appropriate */
-} ENetEvent;
-
-/** @defgroup global ENet global functions
- @{
-*/
-
-/**
- Initializes ENet globally. Must be called prior to using any functions in
- ENet.
- @returns 0 on success, < 0 on failure
-*/
-ENET_API int enet_initialize (void);
-
-/**
- Initializes ENet globally and supplies user-overridden callbacks. Must be called prior to using any functions in ENet. Do not use enet_initialize() if you use this variant. Make sure the ENetCallbacks structure is zeroed out so that any additional callbacks added in future versions will be properly ignored.
-
- @param version the constant ENET_VERSION should be supplied so ENet knows which version of ENetCallbacks struct to use
- @param inits user-overriden callbacks where any NULL callbacks will use ENet's defaults
- @returns 0 on success, < 0 on failure
-*/
-ENET_API int enet_initialize_with_callbacks (ENetVersion version, const ENetCallbacks * inits);
-
-/**
- Shuts down ENet globally. Should be called when a program that has
- initialized ENet exits.
-*/
-ENET_API void enet_deinitialize (void);
-
-/** @} */
-
-/** @defgroup private ENet private implementation functions */
-
-/**
- Returns the wall-time in milliseconds. Its initial value is unspecified
- unless otherwise set.
- */
-ENET_API enet_uint32 enet_time_get (void);
-/**
- Sets the current wall-time in milliseconds.
- */
-ENET_API void enet_time_set (enet_uint32);
-
-/** @defgroup socket ENet socket functions
- @{
-*/
-ENET_API ENetSocket enet_socket_create (ENetSocketType);
-ENET_API int enet_socket_bind (ENetSocket, const ENetAddress *);
-ENET_API int enet_socket_listen (ENetSocket, int);
-ENET_API ENetSocket enet_socket_accept (ENetSocket, ENetAddress *);
-ENET_API int enet_socket_connect (ENetSocket, const ENetAddress *);
-ENET_API int enet_socket_send (ENetSocket, const ENetAddress *, const ENetBuffer *, size_t);
-ENET_API int enet_socket_receive (ENetSocket, ENetAddress *, ENetBuffer *, size_t);
-ENET_API int enet_socket_wait (ENetSocket, enet_uint32 *, enet_uint32);
-ENET_API int enet_socket_set_option (ENetSocket, ENetSocketOption, int);
-ENET_API void enet_socket_destroy (ENetSocket);
-ENET_API int enet_socketset_select (ENetSocket, ENetSocketSet *, ENetSocketSet *, enet_uint32);
-
-/** @} */
-
-/** @defgroup Address ENet address functions
- @{
-*/
-/** Attempts to resolve the host named by the parameter hostName and sets
- the host field in the address parameter if successful.
- @param address destination to store resolved address
- @param hostName host name to lookup
- @retval 0 on success
- @retval < 0 on failure
- @returns the address of the given hostName in address on success
-*/
-ENET_API int enet_address_set_host (ENetAddress * address, const char * hostName);
-
-/** Gives the printable form of the ip address specified in the address parameter.
- @param address address printed
- @param hostName destination for name, must not be NULL
- @param nameLength maximum length of hostName.
- @returns the null-terminated name of the host in hostName on success
- @retval 0 on success
- @retval < 0 on failure
-*/
-ENET_API int enet_address_get_host_ip (const ENetAddress * address, char * hostName, size_t nameLength);
-
-/** Attempts to do a reverse lookup of the host field in the address parameter.
- @param address address used for reverse lookup
- @param hostName destination for name, must not be NULL
- @param nameLength maximum length of hostName.
- @returns the null-terminated name of the host in hostName on success
- @retval 0 on success
- @retval < 0 on failure
-*/
-ENET_API int enet_address_get_host (const ENetAddress * address, char * hostName, size_t nameLength);
-
-/** @} */
-
-ENET_API ENetPacket * enet_packet_create (const void *, size_t, enet_uint32);
-ENET_API void enet_packet_destroy (ENetPacket *);
-ENET_API int enet_packet_resize (ENetPacket *, size_t);
-extern enet_uint32 enet_crc32 (const ENetBuffer *, size_t);
-
-ENET_API ENetHost * enet_host_create (const ENetAddress *, size_t, size_t, enet_uint32, enet_uint32);
-ENET_API void enet_host_destroy (ENetHost *);
-ENET_API ENetPeer * enet_host_connect (ENetHost *, const ENetAddress *, size_t, enet_uint32);
-ENET_API int enet_host_check_events (ENetHost *, ENetEvent *);
-ENET_API int enet_host_service (ENetHost *, ENetEvent *, enet_uint32);
-ENET_API void enet_host_flush (ENetHost *);
-ENET_API void enet_host_broadcast (ENetHost *, enet_uint8, ENetPacket *);
-ENET_API void enet_host_compress (ENetHost *, const ENetCompressor *);
-ENET_API int enet_host_compress_with_range_coder (ENetHost * host);
-ENET_API void enet_host_channel_limit (ENetHost *, size_t);
-ENET_API void enet_host_bandwidth_limit (ENetHost *, enet_uint32, enet_uint32);
-extern void enet_host_bandwidth_throttle (ENetHost *);
-
-ENET_API int enet_peer_send (ENetPeer *, enet_uint8, ENetPacket *);
-ENET_API ENetPacket * enet_peer_receive (ENetPeer *, enet_uint8 * channelID);
-ENET_API void enet_peer_ping (ENetPeer *);
-ENET_API void enet_peer_reset (ENetPeer *);
-ENET_API void enet_peer_disconnect (ENetPeer *, enet_uint32);
-ENET_API void enet_peer_disconnect_now (ENetPeer *, enet_uint32);
-ENET_API void enet_peer_disconnect_later (ENetPeer *, enet_uint32);
-ENET_API void enet_peer_throttle_configure (ENetPeer *, enet_uint32, enet_uint32, enet_uint32);
-extern int enet_peer_throttle (ENetPeer *, enet_uint32);
-extern void enet_peer_reset_queues (ENetPeer *);
-extern void enet_peer_setup_outgoing_command (ENetPeer *, ENetOutgoingCommand *);
-extern ENetOutgoingCommand * enet_peer_queue_outgoing_command (ENetPeer *, const ENetProtocol *, ENetPacket *, enet_uint32, enet_uint16);
-extern ENetIncomingCommand * enet_peer_queue_incoming_command (ENetPeer *, const ENetProtocol *, ENetPacket *, enet_uint32);
-extern ENetAcknowledgement * enet_peer_queue_acknowledgement (ENetPeer *, const ENetProtocol *, enet_uint16);
-extern void enet_peer_dispatch_incoming_unreliable_commands (ENetPeer *, ENetChannel *);
-extern void enet_peer_dispatch_incoming_reliable_commands (ENetPeer *, ENetChannel *);
-
-ENET_API void * enet_range_coder_create (void);
-ENET_API void enet_range_coder_destroy (void *);
-ENET_API size_t enet_range_coder_compress (void *, const ENetBuffer *, size_t, size_t, enet_uint8 *, size_t);
-ENET_API size_t enet_range_coder_decompress (void *, const enet_uint8 *, size_t, enet_uint8 *, size_t);
-
-extern size_t enet_protocol_command_size (enet_uint8);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __ENET_ENET_H__ */
-