driAn
c6e385ea38
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@14 e016b1c5-ed68-44aa-a2f7-31cac88cffde
74 lines
1.8 KiB
C
Executable File
74 lines
1.8 KiB
C
Executable File
/**
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@file packet.c
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@brief ENet packet management functions
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*/
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#include <string.h>
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#define ENET_BUILDING_LIB 1
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#include "enet/memory.h"
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#include "enet/enet.h"
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/** @defgroup Packet ENet packet functions
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@{
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*/
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/** Creates a packet that may be sent to a peer.
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@param dataContents initial contents of the packet's data; the packet's data will remain uninitialized if dataContents is NULL.
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@param dataLength size of the data allocated for this packet
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@param flags flags for this packet as described for the ENetPacket structure.
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@returns the packet on success, NULL on failure
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*/
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ENetPacket *
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enet_packet_create (const void * data, size_t dataLength, enet_uint32 flags)
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{
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ENetPacket * packet = (ENetPacket *) enet_malloc (sizeof (ENetPacket));
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packet -> data = (enet_uint8 *) enet_malloc (dataLength);
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if (data != NULL)
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memcpy (packet -> data, data, dataLength);
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packet -> referenceCount = 0;
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packet -> flags = flags;
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packet -> dataLength = dataLength;
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return packet;
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}
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/** Destroys the packet and deallocates its data.
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@param packet packet to be destroyed
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*/
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void
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enet_packet_destroy (ENetPacket * packet)
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{
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enet_free (packet -> data);
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enet_free (packet);
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}
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/** Attempts to resize the data in the packet to length specified in the
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dataLength parameter
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@param packet packet to resize
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@param dataLength new size for the packet data
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@returns 0 on success, < 0 on failure
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*/
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int
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enet_packet_resize (ENetPacket * packet, size_t dataLength)
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{
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enet_uint8 * newData;
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if (dataLength <= packet -> dataLength)
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{
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packet -> dataLength = dataLength;
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return 0;
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}
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newData = (enet_uint8 *) enet_realloc (packet -> data, dataLength);
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packet -> data = newData;
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packet -> dataLength = dataLength;
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return 0;
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}
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/** @} */
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