diff options
Diffstat (limited to 'service/system/logger_service/server/src/mem_reader.cpp')
-rwxr-xr-x | service/system/logger_service/server/src/mem_reader.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/service/system/logger_service/server/src/mem_reader.cpp b/service/system/logger_service/server/src/mem_reader.cpp new file mode 100755 index 0000000..5ad6a6c --- /dev/null +++ b/service/system/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 |