Azure IoT common library
Dependents: STM32F746_iothub_client_sample_mqtt f767zi_mqtt iothub_client_sample_amqp iothub_client_sample_http ... more
constmap.c
- Committer:
- Azure.IoT Build
- Date:
- 2016-04-08
- Revision:
- 0:fa2de1b79154
- Child:
- 1:9190c0f4d23a
File content as of revision 0:fa2de1b79154:
// Copyright (c) Microsoft. All rights reserved. // Licensed under the MIT license. See LICENSE file in the project root for full license information. #include <stdlib.h> #ifdef _CRTDBG_MAP_ALLOC #include <crtdbg.h> #endif #include "azure_c_shared_utility/gballoc.h" #include "azure_c_shared_utility/map.h" #include "azure_c_shared_utility/constmap.h" #include "azure_c_shared_utility/iot_logging.h" #include "azure_c_shared_utility/refcount.h" DEFINE_ENUM_STRINGS(CONSTMAP_RESULT, CONSTMAP_RESULT_VALUES); typedef struct CONSTMAP_HANDLE_DATA_TAG { MAP_HANDLE map; } CONSTMAP_HANDLE_DATA; DEFINE_REFCOUNT_TYPE(CONSTMAP_HANDLE_DATA); #define LOG_CONSTMAP_ERROR(result) LogError("result = %s\r\n", ENUM_TO_STRING(CONSTMAP_RESULT, (result))); CONSTMAP_HANDLE ConstMap_Create(MAP_HANDLE sourceMap) { CONSTMAP_HANDLE_DATA* result = REFCOUNT_TYPE_CREATE(CONSTMAP_HANDLE_DATA); if (result == NULL) { LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_048: [ConstMap_Create shall accept any non-NULL MAP_HANDLE as input.]*/ /*Codes_SRS_CONSTMAP_17_001: [ConstMap_Create shall create an immutable map, populated by the key, value pairs in the source map.]*/ result->map = Map_Clone(sourceMap); if (result->map == NULL) { free(result); /*Codes_SRS_CONSTMAP_17_002: [If during creation there are any errors, then ConstMap_Create shall return NULL.]*/ result = NULL; LOG_CONSTMAP_ERROR(CONSTMAP_ERROR); } } /*Codes_SRS_CONSTMAP_17_003: [Otherwise, it shall return a non-NULL handle that can be used in subsequent calls.]*/ return (CONSTMAP_HANDLE)result; } void ConstMap_Destroy(CONSTMAP_HANDLE handle) { /*Codes_SRS_CONSTMAP_17_005: [If parameter handle is NULL then ConstMap_Destroy shall take no action.]*/ if (handle == NULL) { LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_049: [ConstMap_Destroy shall decrement the internal reference count of the immutable map.]*/ if (DEC_REF(CONSTMAP_HANDLE_DATA, handle) == DEC_RETURN_ZERO) { /*Codes_SRS_CONSTMAP_17_004: [If the reference count is zero, ConstMap_Destroy shall release all resources associated with the immutable map.]*/ Map_Destroy(((CONSTMAP_HANDLE_DATA *)handle)->map); free(handle); } } } CONSTMAP_HANDLE ConstMap_Clone(CONSTMAP_HANDLE handle) { /*Codes_SRS_CONSTMAP_17_038: [ConstMap_Clone returns NULL if parameter handle is NULL.] */ if (handle == NULL) { LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_039: [ConstMap_Clone shall increase the internal reference count of the immutable map indicated by parameter handle]*/ /*Codes_SRS_CONSTMAP_17_050: [ConstMap_Clone shall return the non-NULL handle. ]*/ INC_REF(CONSTMAP_HANDLE_DATA, handle); } return (handle); } static CONSTMAP_RESULT ConstMap_ErrorConvert(MAP_RESULT mapResult) { CONSTMAP_RESULT result; switch (mapResult) { case MAP_OK: result = CONSTMAP_OK; break; case MAP_INVALIDARG: result = CONSTMAP_INVALIDARG; break; case MAP_KEYNOTFOUND: result = CONSTMAP_KEYNOTFOUND; break; default: result = CONSTMAP_ERROR; break; } return result; } MAP_HANDLE ConstMap_CloneWriteable(CONSTMAP_HANDLE handle) { MAP_HANDLE result = NULL; if (handle == NULL) { /*Codes_SRS_CONSTMAP_17_051: [ConstMap_CloneWriteable returns NULL if parameter handle is NULL. ]*/ LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_052: [ConstMap_CloneWriteable shall create a new, writeable map, populated by the key, value pairs in the parameter defined by handle.]*/ /*Codes_SRS_CONSTMAP_17_053: [If during cloning, any operation fails, then ConstMap_CloneWriteableap_Clone shall return NULL.]*/ /*Codes_SRS_CONSTMAP_17_054: [Otherwise, ConstMap_CloneWriteable shall return a non-NULL handle that can be used in subsequent calls.]*/ result = Map_Clone(((CONSTMAP_HANDLE_DATA *)handle)->map); } return result; } bool ConstMap_ContainsKey(CONSTMAP_HANDLE handle, const char* key ) { bool keyExists = false; if (handle == NULL) { /*Codes_SRS_CONSTMAP_17_024: [If parameter handle or key are NULL then ConstMap_ContainsKey shall return false.]*/ LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { if (key == NULL) { LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_025: [Otherwise if a key exists then ConstMap_ContainsKey shall return true.]*/ MAP_RESULT mapResult = Map_ContainsKey(((CONSTMAP_HANDLE_DATA *)handle)->map, key, &keyExists); if (mapResult != MAP_OK) { /*Codes_SRS_CONSTMAP_17_026: [If a key doesn't exist, then ConstMap_ContainsKey shall return false.]*/ keyExists = false; LOG_CONSTMAP_ERROR(ConstMap_ErrorConvert(mapResult)); } } } return keyExists; } bool ConstMap_ContainsValue(CONSTMAP_HANDLE handle, const char* value) { bool valueExists = false; if (handle == NULL) { /*Codes_SRS_CONSTMAP_17_027: [If parameter handle or value is NULL then ConstMap_ContainsValue shall return false.]*/ LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { if (value == NULL) { LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_028: [Otherwise, if a pair has its value equal to the parameter value, the ConstMap_ContainsValue shall return true.]*/ MAP_RESULT mapResult = Map_ContainsValue(((CONSTMAP_HANDLE_DATA *)handle)->map, value, &valueExists); if (mapResult != MAP_OK) { /*Codes_SRS_CONSTMAP_17_029: [Otherwise, if such a does not exist, then ConstMap_ContainsValue shall return false.]*/ LOG_CONSTMAP_ERROR(ConstMap_ErrorConvert(mapResult)); } } } return valueExists; } const char* ConstMap_GetValue(CONSTMAP_HANDLE handle, const char* key) { const char* value = NULL; if (handle == NULL) { /*Codes_SRS_CONSTMAP_17_040: [If parameter handle or key is NULL then ConstMap_GetValue returns NULL.]*/ LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { if (key == NULL) { /*Codes_SRS_CONSTMAP_17_040: [If parameter handle or key is NULL then ConstMap_GetValue returns NULL.]*/ LOG_CONSTMAP_ERROR(CONSTMAP_INVALIDARG); } else { /*Codes_SRS_CONSTMAP_17_041: [If the key is not found, then ConstMap_GetValue returns NULL.]*/ /*Codes_SRS_CONSTMAP_17_042: [Otherwise, ConstMap_GetValue returns the key's value.]*/ value = Map_GetValueFromKey(((CONSTMAP_HANDLE_DATA *)handle)->map, key); } } return value; } CONSTMAP_RESULT ConstMap_GetInternals(CONSTMAP_HANDLE handle, const char*const** keys, const char*const** values, size_t* count) { CONSTMAP_RESULT result; if (handle == NULL) { /*Codes_SRS_CONSTMAP_17_046: [If parameter handle, keys, values or count is NULL then ConstMap_GetInternals shall return CONSTMAP_INVALIDARG.]*/ result = CONSTMAP_INVALIDARG; LOG_CONSTMAP_ERROR(result); } else { /*Codes_SRS_CONSTMAP_17_043: [ConstMap_GetInternals shall produce in *keys a pointer to an array of const char* having all the keys stored so far by the map.] *Codes_SRS_CONSTMAP_17_044: [ConstMap_GetInternals shall produce in *values a pointer to an array of const char* having all the values stored so far by the map.] *Codes_SRS_CONSTMAP_17_045: [ ConstMap_GetInternals shall produce in *count the number of stored keys and values.] */ MAP_RESULT mapResult = Map_GetInternals(((CONSTMAP_HANDLE_DATA *)handle)->map, keys, values, count); result = ConstMap_ErrorConvert(mapResult); } return result; }