1 files changed, 125 insertions, 0 deletions
diff --git a/systemservice/logger_service/server/src/mem_reader.cpp b/systemservice/logger_service/server/src/mem_reader.cpp
new file mode 100644
index 00000000..5ad6a6c3
--- /dev/null
+++ b/systemservice/logger_service/server/src/mem_reader.cpp
@@ -0,0 +1,125 @@
+/*
+ * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * 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.
+ */
+
+///////////////////////////////////////////////////////////////////////////////
+/// \ingroup  tag_SS_LoggerService
+/// \brief    This file supports reading from a shared mem area.
+///
+///////////////////////////////////////////////////////////////////////////////
+#include "readerWriter/reader/mem_reader.h"
+#include <string>
+
+namespace ReaderWriter {
+
+CMemReader::CMemReader()
+    : m_pSharedBuf(NULL),
+      m_sharedBufSize(0) {
+}
+
+CMemReader::~CMemReader() {
+  this->Close();
+}
+
+EFrameworkunifiedStatus CMemReader::Initialize(CLoggerCfg* f_pLoggerCfg, std::string f_name,
+                                  UI_32 f_maxSize) {
+  FRAMEWORKUNIFIEDLOG(ZONE_FUNC, __FUNCTION__, "+");
+  EFrameworkunifiedStatus l_eStatus = eFrameworkunifiedStatusInvldParam;
+  m_sharedBufSize = f_maxSize;
+  m_pSharedBuf = new (std::nothrow) CNSSharedMemReader(f_name, TRUE);  // LCOV_EXCL_BR_LINE 5:Cannot pass because it cannot be new
+  if (NULL != m_pSharedBuf) {  // LCOV_EXCL_BR_LINE 5:Cannot pass because it cannot be new
+    l_eStatus = this->Open();
+  } else {
+    l_eStatus = eFrameworkunifiedStatusNullPointer;
+  }
+  FRAMEWORKUNIFIEDLOG(ZONE_FUNC, __FUNCTION__, "-: %d", l_eStatus);
+  return (l_eStatus);
+}
+
+EFrameworkunifiedStatus CMemReader::Open(void) {
+  EFrameworkunifiedStatus l_eStatus = eFrameworkunifiedStatusInvldParam;
+  if (NULL != m_pSharedBuf) {  // LCOV_EXCL_BR_LINE 5: new will aways sucess, so m_pSharedBuf will noe be null
+    if (!m_pSharedBuf->IsOpen()) {
+      // maps the shared memory buffer
+      l_eStatus = m_pSharedBuf->Open();
+    } else {
+      // Already opened no action required
+      l_eStatus = eFrameworkunifiedStatusOK;
+    }
+  } else {
+    l_eStatus = eFrameworkunifiedStatusNullPointer;
+  }
+  return l_eStatus;
+}
+
+BOOL CMemReader::IsOpen(void) {
+  return this->m_pSharedBuf->IsOpen();
+}
+
+EFrameworkunifiedStatus CMemReader::Read(UI_8* f_data, UI_32 f_length, SI_32& f_bytesRead) {
+  EFrameworkunifiedStatus l_eStatus = eFrameworkunifiedStatusOK;
+
+  if (this->m_pSharedBuf != NULL) {
+    if (TRUE != this->m_pSharedBuf->IsOpen()) {
+      l_eStatus = m_pSharedBuf->Open();
+    }
+    if (l_eStatus == eFrameworkunifiedStatusOK) {
+      f_bytesRead = m_pSharedBuf->Read(reinterpret_cast<char *>(f_data), f_length);
+      if (NS_SHM_ERROR != f_bytesRead) {
+        l_eStatus = eFrameworkunifiedStatusOK;
+      } else {
+        l_eStatus = eFrameworkunifiedStatusFail;
+      }
+    }
+
+  } else {
+    l_eStatus = eFrameworkunifiedStatusNullPointer;
+  }
+  return (l_eStatus);
+}
+
+EFrameworkunifiedStatus CMemReader::ReadToFile(std::string f_fileName, UI_32& f_Written) {
+  EFrameworkunifiedStatus l_eStatus = eFrameworkunifiedStatusFail;
+
+  if ((NULL != m_pSharedBuf) &&  // LCOV_EXCL_BR_LINE 5: new will aways sucess, so m_pSharedBuf will noe be null
+      (f_fileName.length() != 0)) {
+    l_eStatus = m_pSharedBuf->DumpToFile(f_fileName.c_str(), &f_Written);
+  }
+
+  return l_eStatus;
+}
+
+void CMemReader::Close(void) {
+  if (NULL != m_pSharedBuf) {  // LCOV_EXCL_BR_LINE 6: m_pSharedBuf can not be null
+    // un-map the shared memory object
+    (void) m_pSharedBuf->Close();
+
+    delete m_pSharedBuf;
+    m_pSharedBuf = NULL;
+  }
+}
+
+EFrameworkunifiedStatus CMemReader::ResetPosition(void) {
+  FRAMEWORKUNIFIEDLOG(ZONE_FUNC, __FUNCTION__, "+");
+  EFrameworkunifiedStatus l_eStatus = eFrameworkunifiedStatusNullPointer;
+  if (NULL != m_pSharedBuf) {  // LCOV_EXCL_BR_LINE 6:Because m_pSharedBuf is always NULL
+    // un-map the shared memory object
+    l_eStatus = m_pSharedBuf->SetReadPtrToWritePtr();
+    LOG_STATUS_IF_ERRORED(l_eStatus, "m_pSharedBuf->SetReadPtrToWritePtr();");  // LCOV_EXCL_BR_LINE 15:Macro
+  }
+  FRAMEWORKUNIFIEDLOG(ZONE_FUNC, __FUNCTION__, "-: %d", l_eStatus);
+  return (l_eStatus);
+}
+}  // namespace ReaderWriter