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b3a68ed095
DirtySDK (EA's Dirty Sockets library) will be used for the LiveAPI implementation, and depends on: EABase, EAThread.
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*H*************************************************************************************/
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/*!
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\File protobufcommon.h
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\Description
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Shared definitions and functionality for the protobuf encoder / decoder
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\Copyright
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Copyright (c) Electronic Arts 2017. ALL RIGHTS RESERVED.
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\Version 07/05/2017 (eesponda)
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*/
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/*************************************************************************************H*/
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/*** Include Files *********************************************************************/
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#include "DirtySDK/platform.h"
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#include "DirtySDK/util/protobufcommon.h"
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/*** Varibles **************************************************************************/
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//! strings representation for debugging
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static const char *_ProtobufCommon_aTypes[] =
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{
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"PROTOBUF_TYPE_VARINT",
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"PROTOBUF_TYPE_64BIT",
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"PROTOBUF_TYPE_LENGTH_DELIMITED",
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"PROTOBUF_TYPE_START_GROUP",
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"PROTOBUF_TYPE_END_GROUP",
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"PROTOBUF_TYPE_32BIT"
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};
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/*** Public Functions ******************************************************************/
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/*F*************************************************************************************/
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/*!
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\Function ProtobufCommonReadSize
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\Description
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Reads the encoded size of the message from the buffer
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\Input *pBuffer - buffer we are using to read
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\Input iBufLen - size of the buffer
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\Input *pResult - [out] size of the message
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\Output
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const uint8_t * - location past the encoded size or NULL if iBufLen is less than
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4 bytes or the size of the message
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\Version 07/05/2017 (eesponda)
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*/
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/*************************************************************************************F*/
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const uint8_t *ProtobufCommonReadSize(const uint8_t *pBuffer, int32_t iBufLen, int32_t *pResult)
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{
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*pResult = 0;
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/* if the full size of the buffer is less than the size
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we cannot read the message size */
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if (iBufLen < 4)
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{
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return(pBuffer);
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}
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iBufLen -= 4;
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*pResult |= (*pBuffer++ << 24);
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*pResult |= (*pBuffer++ << 16);
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*pResult |= (*pBuffer++ << 8);
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*pResult |= (*pBuffer++ << 0);
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// make sure that the size of the message isn't larger than the buffer
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return((*pResult <= iBufLen) ? pBuffer : NULL);
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}
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/*F*************************************************************************************/
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/*!
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\Function ProtobufCommonGetType
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\Description
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Converts the type to its string representation
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\Input eType - type we are converting
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\Output
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const char * - string representation or empty string if no mapping found
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\Version 07/05/2017 (eesponda)
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*/
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/*************************************************************************************F*/
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const char *ProtobufCommonGetType(ProtobufTypeE eType)
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{
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return((eType >= PROTOBUF_TYPE_VARINT) && (eType <= PROTOBUF_TYPE_32BIT) ? _ProtobufCommon_aTypes[eType] : "");
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}
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