[edk2-devel] [PATCH 3/3] RedfishPkg/JsonLib: add object clear interface

Nickle Wang via groups.io nicklew=nvidia.com at groups.io
Mon Jul 3 13:20:30 UTC 2023


-Add JsonObjectClear() interface for application to clear
all elements in JSON object.
-Fix typo.

Signed-off-by: Nickle Wang <nicklew at nvidia.com>
Cc: Abner Chang <abner.chang at amd.com>
Cc: Igor Kulchytskyy <igork at ami.com>
Cc: Nick Ramirez <nramirez at nvidia.com>
---
 RedfishPkg/Include/Library/JsonLib.h | 33 +++++++++++++++++------
 RedfishPkg/Library/JsonLib/JsonLib.c | 39 ++++++++++++++++++++++------
 2 files changed, 56 insertions(+), 16 deletions(-)

diff --git a/RedfishPkg/Include/Library/JsonLib.h b/RedfishPkg/Include/Library/JsonLib.h
index f98f4e779ede..8f31d9341481 100644
--- a/RedfishPkg/Include/Library/JsonLib.h
+++ b/RedfishPkg/Include/Library/JsonLib.h
@@ -3,6 +3,7 @@
 
   Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
  (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+ Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 
     SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -97,7 +98,7 @@ typedef enum {
 
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
-  @retval      The created JSON value which contains a JSON array or NULL if intial a JSON array
+  @retval      The created JSON value which contains a JSON array or NULL if initial a JSON array
                is failed.
 
 **/
@@ -116,7 +117,7 @@ JsonValueInitArray (
 
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
-  @retval      The created JSON value which contains a JSON object or NULL if intial a JSON object
+  @retval      The created JSON value which contains a JSON object or NULL if initial a JSON object
                is failed.
 
 **/
@@ -571,6 +572,22 @@ JsonObjectSize (
   IN    EDKII_JSON_OBJECT  JsonObject
   );
 
+/**
+  The function removes all elements from object. Returns 0 on success and -1 if object is not
+  a JSON object. The reference count of all removed values are decremented.
+
+  @param[in]   JsonObject              The provided JSON object.
+
+  @retval      EFI_ABORTED            Some error occur and operation aborted.
+  @retval      EFI_SUCCESS            JSON value has been appended to the end of the JSON array.
+
+**/
+EFI_STATUS
+EFIAPI
+JsonObjectClear (
+  IN    EDKII_JSON_OBJECT  JsonObject
+  );
+
 /**
   The function is used to enumerate all keys in a JSON object.
 
@@ -705,7 +722,7 @@ JsonArrayAppendValue (
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
   @param[in]   JsonArray              The provided JSON array.
-  @param[in]   Index                  The Index position before removement.
+  @param[in]   Index                  The Index position before removal.
 
   @retval      EFI_ABORTED            Some error occur and operation aborted.
   @retval      EFI_SUCCESS            The JSON array has been removed at position index.
@@ -722,7 +739,7 @@ JsonArrayRemoveValue (
   Dump JSON to a buffer.
 
   @param[in]   JsonValue       The provided JSON value.
-  @param[in]   Flags           The Index position before removement. The value
+  @param[in]   Flags           The Index position before removal. The value
                                could be the combination of below flags.
                                  - EDKII_JSON_INDENT(n)
                                  - EDKII_JSON_COMPACT
@@ -737,7 +754,7 @@ JsonArrayRemoveValue (
                                https://jansson.readthedocs.io/en/2.13/apiref.html#encoding
 
   @retval      CHAR8 *         Dump fail if NULL returned, otherwise the buffer
-                               contain JSON paylaod in ASCII string. The return
+                               contain JSON payload in ASCII string. The return
                                value must be freed by the caller FreePool().
 **/
 CHAR8 *
@@ -753,7 +770,7 @@ JsonDumpString (
   value. Only object and array represented strings can be converted successfully,
   since they are the only valid root values of a JSON text for UEFI usage.
 
-  Real number and number with exponent part are not supportted by UEFI.
+  Real number and number with exponent part are not supported by UEFI.
 
   Caller needs to cleanup the root value by calling JsonValueFree().
 
@@ -775,7 +792,7 @@ JsonLoadString (
 /**
   Load JSON from a buffer.
 
-  @param[in]   Buffer        Bufffer to the JSON payload
+  @param[in]   Buffer        Buffier to the JSON payload
   @param[in]   BufferLen     Length of the buffer
   @param[in]   Flags         Flag of loading JSON buffer, the value
                              could be the combination of below flags.
@@ -807,7 +824,7 @@ JsonLoadBuffer (
   When the reference count drops to zero, there are no references left and the
   value can be destroyed.
 
-  This funciton decrement the reference count of EDKII_JSON_VALUE. As soon as
+  This function decrement the reference count of EDKII_JSON_VALUE. As soon as
   a call to json_decref() drops the reference count to zero, the value is
   destroyed and it can no longer be used.
 
diff --git a/RedfishPkg/Library/JsonLib/JsonLib.c b/RedfishPkg/Library/JsonLib/JsonLib.c
index 69f2455c00ed..9b758b940293 100644
--- a/RedfishPkg/Library/JsonLib/JsonLib.c
+++ b/RedfishPkg/Library/JsonLib/JsonLib.c
@@ -28,7 +28,7 @@
 
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
-  @retval      The created JSON value which contains a JSON array or NULL if intial a JSON array
+  @retval      The created JSON value which contains a JSON array or NULL if initial a JSON array
                is failed.
 
 **/
@@ -50,7 +50,7 @@ JsonValueInitArray (
 
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
-  @retval      The created JSON value which contains a JSON object or NULL if intial a JSON object
+  @retval      The created JSON value which contains a JSON object or NULL if initial a JSON object
                is failed.
 
 **/
@@ -672,6 +672,29 @@ JsonObjectSize (
   return json_object_size ((json_t *)JsonObject);
 }
 
+/**
+  The function removes all elements from object. Returns 0 on success and -1 if object is not
+  a JSON object. The reference count of all removed values are decremented.
+
+  @param[in]   JsonObject              The provided JSON object.
+
+  @retval      EFI_ABORTED            Some error occur and operation aborted.
+  @retval      EFI_SUCCESS            JSON value has been appended to the end of the JSON array.
+
+**/
+EFI_STATUS
+EFIAPI
+JsonObjectClear (
+  IN    EDKII_JSON_OBJECT  JsonObject
+  )
+{
+  if (json_object_clear ((json_t *)JsonObject) != 0) {
+    return EFI_ABORTED;
+  }
+
+  return EFI_SUCCESS;
+}
+
 /**
   The function is used to enumerate all keys in a JSON object.
 
@@ -864,7 +887,7 @@ JsonArrayAppendValue (
   More details for reference count strategy can refer to the API description for JsonValueFree().
 
   @param[in]   JsonArray              The provided JSON array.
-  @param[in]   Index                  The Index position before removement.
+  @param[in]   Index                  The Index position before removal.
 
   @retval      EFI_ABORTED            Some error occur and operation aborted.
   @retval      EFI_SUCCESS            The JSON array has been removed at position index.
@@ -888,7 +911,7 @@ JsonArrayRemoveValue (
   Dump JSON to a buffer.
 
   @param[in]   JsonValue       The provided JSON value.
-  @param[in]   Flags           The Index position before removement. The value
+  @param[in]   Flags           The Index position before removal. The value
                                could be the combination of below flags.
                                  - EDKII_JSON_INDENT(n)
                                  - EDKII_JSON_COMPACT
@@ -903,7 +926,7 @@ JsonArrayRemoveValue (
                                https://jansson.readthedocs.io/en/2.13/apiref.html#encoding
 
   @retval      CHAR8 *         Dump fail if NULL returned, otherwise the buffer
-                               contain JSON paylaod in ASCII string. The return
+                               contain JSON payload in ASCII string. The return
                                value must be freed by the caller using FreePool().
 **/
 CHAR8 *
@@ -926,7 +949,7 @@ JsonDumpString (
   value. Only object and array represented strings can be converted successfully,
   since they are the only valid root values of a JSON text for UEFI usage.
 
-  Real number and number with exponent part are not supportted by UEFI.
+  Real number and number with exponent part are not supported by UEFI.
 
   Caller needs to cleanup the root value by calling JsonValueFree().
 
@@ -951,7 +974,7 @@ JsonLoadString (
 /**
   Load JSON from a buffer.
 
-  @param[in]   Buffer        Bufffer to the JSON payload
+  @param[in]   Buffer        Buffier to the JSON payload
   @param[in]   BufferLen     Length of the buffer
   @param[in]   Flags         Flag of loading JSON buffer, the value
                              could be the combination of below flags.
@@ -986,7 +1009,7 @@ JsonLoadBuffer (
   When the reference count drops to zero, there are no references left and the
   value can be destroyed.
 
-  This funciton decrement the reference count of EDKII_JSON_VALUE. As soon as
+  This function decrement the reference count of EDKII_JSON_VALUE. As soon as
   a call to json_decref() drops the reference count to zero, the value is
   destroyed and it can no longer be used.
 
-- 
2.17.1



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