Xin Zhang / azure-iot-c-sdk-f767zi

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Dependents:   samplemqtt

serializer/src/dataserializer.c@0:f7f1f0d76dd6, 2018-08-23 (annotated)

Committer:
XinZhangMS
Date:
Thu Aug 23 06:52:14 2018 +0000
Revision:
0:f7f1f0d76dd6
azure-c-sdk for mbed os supporting NUCLEO_F767ZI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
XinZhangMS 0:f7f1f0d76dd6 1 // Copyright (c) Microsoft. All rights reserved.
XinZhangMS 0:f7f1f0d76dd6 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
XinZhangMS 0:f7f1f0d76dd6 3
XinZhangMS 0:f7f1f0d76dd6 4 #include "azure_c_shared_utility/gballoc.h"
XinZhangMS 0:f7f1f0d76dd6 5
XinZhangMS 0:f7f1f0d76dd6 6 #include "dataserializer.h"
XinZhangMS 0:f7f1f0d76dd6 7 #include "azure_c_shared_utility/xlogging.h"
XinZhangMS 0:f7f1f0d76dd6 8
XinZhangMS 0:f7f1f0d76dd6 9 DEFINE_ENUM_STRINGS(DATA_SERIALIZER_RESULT, DATA_SERIALIZER_RESULT_VALUES);
XinZhangMS 0:f7f1f0d76dd6 10
XinZhangMS 0:f7f1f0d76dd6 11 BUFFER_HANDLE DataSerializer_Encode(MULTITREE_HANDLE multiTreeHandle, DATA_SERIALIZER_MULTITREE_TYPE dataType, DATA_SERIALIZER_ENCODE_FUNC encodeFunc)
XinZhangMS 0:f7f1f0d76dd6 12 {
XinZhangMS 0:f7f1f0d76dd6 13 BUFFER_HANDLE pBuffer;
XinZhangMS 0:f7f1f0d76dd6 14
XinZhangMS 0:f7f1f0d76dd6 15 /* Codes_SRS_DATA_SERIALIZER_07_003: [NULL shall be returned when an invalid parameter is supplied.] */
XinZhangMS 0:f7f1f0d76dd6 16 if (multiTreeHandle == NULL || encodeFunc == NULL)
XinZhangMS 0:f7f1f0d76dd6 17 {
XinZhangMS 0:f7f1f0d76dd6 18 pBuffer = NULL;
XinZhangMS 0:f7f1f0d76dd6 19 LogError("(Error code: %s)", ENUM_TO_STRING(DATA_SERIALIZER_RESULT, DATA_SERIALIZER_INVALID_ARG) );
XinZhangMS 0:f7f1f0d76dd6 20 }
XinZhangMS 0:f7f1f0d76dd6 21 else
XinZhangMS 0:f7f1f0d76dd6 22 {
XinZhangMS 0:f7f1f0d76dd6 23 /* Codes_SRS_DATA_SERIALIZER_07_009: [DataSerializer_Encode function shall call into the given DATA_SERIALIZER_ENCODE_FUNC callback with a valid BUFFER object and valid MULTITREE_HANDLE object.] */
XinZhangMS 0:f7f1f0d76dd6 24 pBuffer = encodeFunc(multiTreeHandle, dataType);
XinZhangMS 0:f7f1f0d76dd6 25 if (pBuffer == NULL)
XinZhangMS 0:f7f1f0d76dd6 26 {
XinZhangMS 0:f7f1f0d76dd6 27 /* Codes_SRS_DATA_SERIALIZER_07_010: [Upon a DATA_SERIALIZER_ENCODE_FUNC failure the DataSerializer_Encode function shall return NULL.] */
XinZhangMS 0:f7f1f0d76dd6 28 LogError("(Error code: %s)", ENUM_TO_STRING(DATA_SERIALIZER_RESULT, DATA_SERIALIZER_ERROR) );
XinZhangMS 0:f7f1f0d76dd6 29 }
XinZhangMS 0:f7f1f0d76dd6 30 }
XinZhangMS 0:f7f1f0d76dd6 31 /* Codes_SRS_DATA_SERIALIZER_07_002: [DataSerializer_Encode shall return a valid BUFFER_HANDLE when the function executes successfully.] */
XinZhangMS 0:f7f1f0d76dd6 32 return pBuffer;
XinZhangMS 0:f7f1f0d76dd6 33 }
XinZhangMS 0:f7f1f0d76dd6 34
XinZhangMS 0:f7f1f0d76dd6 35 MULTITREE_HANDLE DataSerializer_Decode(BUFFER_HANDLE data, DATA_SERIALIZER_DECODE_FUNC decodeFunc)
XinZhangMS 0:f7f1f0d76dd6 36 {
XinZhangMS 0:f7f1f0d76dd6 37 MULTITREE_HANDLE multiTreeHandle;
XinZhangMS 0:f7f1f0d76dd6 38
XinZhangMS 0:f7f1f0d76dd6 39 /* Codes_SRS_DATA_SERIALIZER_07_007: [NULL shall be returned when an invalid parameter is supplied.] */
XinZhangMS 0:f7f1f0d76dd6 40 if (data == NULL || decodeFunc == NULL)
XinZhangMS 0:f7f1f0d76dd6 41 {
XinZhangMS 0:f7f1f0d76dd6 42 multiTreeHandle = NULL;
XinZhangMS 0:f7f1f0d76dd6 43 LogError("(Error code: %s)", ENUM_TO_STRING(DATA_SERIALIZER_RESULT, DATA_SERIALIZER_INVALID_ARG) );
XinZhangMS 0:f7f1f0d76dd6 44 }
XinZhangMS 0:f7f1f0d76dd6 45 else
XinZhangMS 0:f7f1f0d76dd6 46 {
XinZhangMS 0:f7f1f0d76dd6 47 /* Codes_SRS_DATA_SERIALIZER_07_012: [DataSerializer_Decode function shall call into the given DATA_SERIALIZER_DECODE_FUNC callback with a valid BUFFER object and valid MULTITREE_HANDLE object.] */
XinZhangMS 0:f7f1f0d76dd6 48 multiTreeHandle = decodeFunc(data);
XinZhangMS 0:f7f1f0d76dd6 49 if (multiTreeHandle == NULL)
XinZhangMS 0:f7f1f0d76dd6 50 {
XinZhangMS 0:f7f1f0d76dd6 51 /* Codes_SRS_DATA_SERIALIZER_07_013: [Upon a DATA_SERIALIZER_DECODE_FUNC callback failure the DataSerializer_Encode function Shall return NULL.] */
XinZhangMS 0:f7f1f0d76dd6 52 LogError("(Error code: %s)", ENUM_TO_STRING(DATA_SERIALIZER_RESULT, DATA_SERIALIZER_ERROR) );
XinZhangMS 0:f7f1f0d76dd6 53 }
XinZhangMS 0:f7f1f0d76dd6 54 }
XinZhangMS 0:f7f1f0d76dd6 55
XinZhangMS 0:f7f1f0d76dd6 56 /* Codes_SRS_DATA_SERIALIZER_07_006: [DataSerializer_Decode shall return a valid MULTITREE_HANDLE when the function executes successfully.] */
XinZhangMS 0:f7f1f0d76dd6 57 return multiTreeHandle;
XinZhangMS 0:f7f1f0d76dd6 58 }