Replaced ENet with submodule

This also updates ENet from 1.3.2 to 1.3.18.

The previously supported WITH_BUNDLEDHEADERS option that affected which
ENet was being used has now been reversed and renamed to
USE_SYSTEM_ENET, which defaults to OFF for now.

1 files changed, 0 insertions, 157 deletions

diff --git a/libs/enet/packet.c b/libs/enet/packet.c
deleted file mode 100644
index 2fc9a10e..00000000
--- a/libs/enet/packet.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/** 
- @file  packet.c
- @brief ENet packet management functions
-*/
-#include <string.h>
-#define ENET_BUILDING_LIB 1
-#include "enet/enet.h"
-
-/** @defgroup Packet ENet packet functions 
-    @{ 
-*/
-
-/** Creates a packet that may be sent to a peer.
-    @param dataContents initial contents of the packet's data; the packet's data will remain uninitialized if dataContents is NULL.
-    @param dataLength   size of the data allocated for this packet
-    @param flags        flags for this packet as described for the ENetPacket structure.
-    @returns the packet on success, NULL on failure
-*/
-ENetPacket *
-enet_packet_create (const void * data, size_t dataLength, enet_uint32 flags)
-{
-    ENetPacket * packet = (ENetPacket *) enet_malloc (sizeof (ENetPacket));
-    if (packet == NULL)
-      return NULL;
-
-    if (flags & ENET_PACKET_FLAG_NO_ALLOCATE)
-      packet -> data = (enet_uint8 *) data;
-    else
-    {
-       packet -> data = (enet_uint8 *) enet_malloc (dataLength);
-       if (packet -> data == NULL)
-       {
-          enet_free (packet);
-          return NULL;
-       }
-
-       if (data != NULL)
-         memcpy (packet -> data, data, dataLength);
-    }
-
-    packet -> referenceCount = 0;
-    packet -> flags = flags;
-    packet -> dataLength = dataLength;
-    packet -> freeCallback = NULL;
-
-    return packet;
-}
-
-/** Destroys the packet and deallocates its data.
-    @param packet packet to be destroyed
-*/
-void
-enet_packet_destroy (ENetPacket * packet)
-{
-    if (packet -> freeCallback != NULL)
-      (* packet -> freeCallback) (packet);
-    if (! (packet -> flags & ENET_PACKET_FLAG_NO_ALLOCATE))
-      enet_free (packet -> data);
-    enet_free (packet);
-}
-
-/** Attempts to resize the data in the packet to length specified in the 
-    dataLength parameter 
-    @param packet packet to resize
-    @param dataLength new size for the packet data
-    @returns 0 on success, < 0 on failure
-*/
-int
-enet_packet_resize (ENetPacket * packet, size_t dataLength)
-{
-    enet_uint8 * newData;
-   
-    if (dataLength <= packet -> dataLength || (packet -> flags & ENET_PACKET_FLAG_NO_ALLOCATE))
-    {
-       packet -> dataLength = dataLength;
-
-       return 0;
-    }
-
-    newData = (enet_uint8 *) enet_malloc (dataLength);
-    if (newData == NULL)
-      return -1;
-
-    memcpy (newData, packet -> data, packet -> dataLength);
-    enet_free (packet -> data);
-    
-    packet -> data = newData;
-    packet -> dataLength = dataLength;
-
-    return 0;
-}
-
-static int initializedCRC32 = 0;
-static enet_uint32 crcTable [256];
-
-static enet_uint32 
-reflect_crc (int val, int bits)
-{
-    int result = 0, bit;
-
-    for (bit = 0; bit < bits; bit ++)
-    {
-        if(val & 1) result |= 1 << (bits - 1 - bit); 
-        val >>= 1;
-    }
-
-    return result;
-}
-
-static void 
-initialize_crc32 ()
-{
-    int byte;
-
-    for (byte = 0; byte < 256; ++ byte)
-    {
-        enet_uint32 crc = reflect_crc (byte, 8) << 24;
-        int offset;
-
-        for(offset = 0; offset < 8; ++ offset)
-        {
-            if (crc & 0x80000000)
-                crc = (crc << 1) ^ 0x04c11db7;
-            else
-                crc <<= 1;
-        }
-
-        crcTable [byte] = reflect_crc (crc, 32);
-    }
-
-    initializedCRC32 = 1;
-}
-    
-enet_uint32
-enet_crc32 (const ENetBuffer * buffers, size_t bufferCount)
-{
-    enet_uint32 crc = 0xFFFFFFFF;
-    
-    if (! initializedCRC32) initialize_crc32 ();
-
-    while (bufferCount -- > 0)
-    {
-        const enet_uint8 * data = (const enet_uint8 *) buffers -> data,
-                         * dataEnd = & data [buffers -> dataLength];
-
-        while (data < dataEnd)
-        {
-            crc = (crc >> 8) ^ crcTable [(crc & 0xFF) ^ *data++];        
-        }
-
-        ++ buffers;
-    }
-
-    return ENET_HOST_TO_NET_32 (~ crc);
-}
-
-/** @} */