backend: copyright header change, retrieve api return value changed

Author: pimpalemahesh

examples/temperature-measurement-app/esp32/main/diagnostic-logs-provider-delegate-impl.cpp

@@ -128,9 +128,9 @@ CHIP_ERROR LogProvider::PrepareLogContextForIntent(LogContext * context, IntentE
                             ChipLogError(DeviceLayer, "Empty Diagnostic buffer"));
         // Retrieve data from the diagnostic storage
         CHIP_ERROR err = mStorageInstance->Retrieve(endUserSupportSpan, sReadEntries);
-        if (err != CHIP_NO_ERROR)
+        if (err != CHIP_NO_ERROR && err != CHIP_ERROR_BUFFER_TOO_SMALL && err != CHIP_ERROR_END_OF_TLV)
         {
-            ChipLogError(DeviceLayer, "Failed to retrieve data: %" CHIP_ERROR_FORMAT, err.Format());
+            ChipLogError(DeviceLayer, "Failed to retrieve data: %s", ErrorStr(err));
             return err;
         }
         context->EndUserSupport.span = endUserSupportSpan;

src/tracing/esp32_diagnostic_trace/BUILD.gn

@@ -1,5 +1,5 @@
 #
-#Copyright (c) 2024 Project CHIP Authors
+#Copyright (c) 2025 Project CHIP Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

src/tracing/esp32_diagnostic_trace/Counter.cpp

@@ -1,6 +1,6 @@
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");

src/tracing/esp32_diagnostic_trace/Counter.h

@@ -1,6 +1,6 @@
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");

src/tracing/esp32_diagnostic_trace/DiagnosticEntry.cpp

@@ -1,3 +1,20 @@
+/*
+ *
+ *    Copyright (c) 2025 Project CHIP Authors
+ *    All rights reserved.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
 #include <tracing/esp32_diagnostic_trace/DiagnosticEntry.h>
 using namespace chip::TLV;
 

src/tracing/esp32_diagnostic_trace/DiagnosticEntry.h

@@ -1,6 +1,6 @@
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");

src/tracing/esp32_diagnostic_trace/DiagnosticStorage.cpp

@@ -1,6 +1,6 @@
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
@@ -71,7 +71,7 @@ CHIP_ERROR CircularDiagnosticBuffer::Retrieve(MutableByteSpan & span, uint32_t &
     }
     span.reduce_size(successful_written_bytes);
     ChipLogDetail(DeviceLayer, "---------------Total Retrieved bytes : %ld----------------\n", successful_written_bytes);
-    return CHIP_NO_ERROR;
+    return err;
 }
 
 bool CircularDiagnosticBuffer::IsBufferEmpty()

src/tracing/esp32_diagnostic_trace/DiagnosticStorage.h

@@ -1,3 +1,20 @@
+/*
+ *
+ *    Copyright (c) 2025 Project CHIP Authors
+ *    All rights reserved.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
 #pragma once
 #include <lib/core/TLVCircularBuffer.h>
 #include <lib/support/Span.h>
@@ -29,7 +46,7 @@ class CircularDiagnosticBuffer : public chip::TLV::TLVCircularBuffer
      *
      * This method retrieves the stored diagnostic data and copies it into the
      * provided `payload` buffer. If the buffer is too small to hold all the data,
-     * the method returns the successfully copied entries along with an error code
+     * still method returns the successfully copied entries along with an error code
      * indicating that the buffer was insufficient.
      *
      * @param payload       A reference to a `MutableByteSpan` where the retrieved
@@ -39,6 +56,7 @@ class CircularDiagnosticBuffer : public chip::TLV::TLVCircularBuffer
      *
      * @retval CHIP_NO_ERROR             If the operation succeeded and all data was copied.
      * @retval CHIP_ERROR_BUFFER_TOO_SMALL If the buffer was not large enough to hold all data.
+     * @retval CHIP_ERROR_END_OF_TLV      If the end of the TLV stream is reached.
      * @retval CHIP_ERROR                 If any other failure occurred during the operation.
      */
     CHIP_ERROR Retrieve(MutableByteSpan & payload, uint32_t & read_entries);

src/tracing/esp32_diagnostic_trace/DiagnosticTracing.cpp

@@ -1,7 +1,7 @@
 
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");

src/tracing/esp32_diagnostic_trace/DiagnosticTracing.h

@@ -2,7 +2,7 @@
 
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");

src/tracing/esp32_diagnostic_trace/include/matter/tracing/macros_impl.h

@@ -1,6 +1,6 @@
 /*
  *
- *    Copyright (c) 2024 Project CHIP Authors
+ *    Copyright (c) 2025 Project CHIP Authors
  *    All rights reserved.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");