| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * 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. |
| */ |
| /** |
| ************************************************************************ |
| * @file M4OSA_FileReader.c |
| * @author Cedric Lecoutre (cedric.lecoutre@philips.com) |
| * Laurent Fay (laurent.fay@philips.com) |
| * @par Org: Philips Digital Systems Laboratories - Paris (PDSL-P) |
| * @brief File reader for Android |
| * @note This file implements functions to read a file. |
| ************************************************************************ |
| */ |
| |
| |
| #include "M4OSA_Debug.h" |
| #include "M4OSA_FileCommon_priv.h" |
| #include "M4OSA_FileReader.h" |
| #include "M4OSA_FileReader_priv.h" |
| #include "M4OSA_Memory.h" |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| #include "M4OSA_Semaphore.h" |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| |
| /** |
| ************************************************************************ |
| * @brief This function opens the provided URL and returns its context. |
| * If an error occured, the context is set to NULL. |
| * @param context: (OUT) Context of the core file reader |
| * @param url: (IN) URL of the input file |
| * @param fileModeAccess: (IN) File mode access |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_ALLOC: there is no more memory available |
| * @return M4ERR_NOT_IMPLEMENTED: the URL does not match with the supported |
| * file |
| * @return M4ERR_FILE_NOT_FOUND: the file cannot be found |
| * @return M4ERR_FILE_LOCKED: the file is locked by an other |
| * application/process |
| * @return M4ERR_FILE_BAD_MODE_ACCESS: the file mode access is not correct |
| ************************************************************************ |
| */ |
| M4OSA_ERR M4OSA_fileReadOpen(M4OSA_Context* pContext, M4OSA_Void* pFileDescriptor, |
| M4OSA_UInt32 fileModeAccess) |
| { |
| M4OSA_TRACE1_3("M4OSA_fileReadOpen : pC = 0x%p fd = 0x%p mode = %lu", |
| pContext, pFileDescriptor, fileModeAccess); |
| |
| return M4OSA_fileCommonOpen(M4OSA_FILE_READER, pContext, |
| pFileDescriptor, fileModeAccess); |
| } |
| |
| /** |
| ************************************************************************ |
| * @brief This function reads the 'size' bytes in the core file reader |
| * (selected by its 'context') and writes the data to the 'data' |
| * pointer. |
| * @note If 'size' byte cannot be read in the core file reader, 'size' |
| * parameter is updated to match the correct |
| * @note number of read bytes. |
| * @param context: (IN/OUT) Context of the core file reader |
| * @param buffer: (OUT) Data pointer of the read data |
| * @param size: (IN/OUT) Size of the data to read (in bytes) |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_BAD_CONTEXT: provided context is not a valid one |
| * @return M4ERR_ALLOC: there is no more memory available |
| * @return M4WAR_NO_DATA_YET: there is no enough data to fill the 'data' |
| * buffer, so the size parameter has been updated. |
| ************************************************************************ |
| */ |
| M4OSA_ERR M4OSA_fileReadData(M4OSA_Context pContext, M4OSA_MemAddr8 data, |
| M4OSA_UInt32* pSize) |
| { |
| M4OSA_FileContext* pFileContext = pContext; |
| M4OSA_ERR err = M4NO_ERROR; |
| M4OSA_Int32 uiSizeRead; |
| |
| M4OSA_TRACE2_2("M4OSA_fileReadData : data = 0x%p size = %lu", |
| data, (M4OSA_NULL != pSize) ? (*pSize) : 0); |
| |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, |
| "M4OSA_fileReadData: pContext is M4OSA_NULL"); |
| M4OSA_DEBUG_IF2(M4OSA_NULL == data, M4ERR_PARAMETER, |
| "M4OSA_fileReadData: data is M4OSA_NULL"); |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pSize, M4ERR_PARAMETER, |
| "M4OSA_fileReadData: pSize is M4OSA_NULL"); |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, |
| M4ERR_BAD_CONTEXT, "M4OSA_fileReadData: semaphore_context is M4OSA_NULL"); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| if(M4OSA_kDescRWAccess == pFileContext->m_DescrModeAccess) /* read write */ |
| { |
| uiSizeRead = fread(data, sizeof(M4OSA_Char), *pSize, |
| pFileContext->file_desc); |
| if(-1 == uiSizeRead) |
| { |
| /* handle is invalid, or the file is not open for reading, or the file is locked */ |
| *pSize = 0; |
| err = M4ERR_BAD_CONTEXT; |
| } |
| else |
| { |
| pFileContext->read_position = pFileContext->read_position + uiSizeRead; |
| if ((M4OSA_UInt32)uiSizeRead < *pSize) |
| { |
| *pSize = uiSizeRead; |
| /* This is the end of file */ |
| pFileContext->b_is_end_of_file = M4OSA_TRUE; |
| err = M4WAR_NO_DATA_YET; |
| } |
| else |
| { |
| *pSize = uiSizeRead; |
| } |
| } |
| |
| return err; |
| } |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| if(pFileContext->current_seek != SeekRead) |
| { |
| /* fseek to the last read position */ |
| err = M4OSA_fileCommonSeek(pContext, M4OSA_kFileSeekBeginning, |
| &(pFileContext->read_position)); |
| if(M4OSA_ERR_IS_ERROR(err)) |
| { |
| M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return err; |
| } |
| |
| pFileContext->current_seek = SeekRead; |
| } |
| |
| /* Read data */ |
| uiSizeRead = fread(data, sizeof(M4OSA_Char), *pSize, |
| pFileContext->file_desc); |
| if(-1 == uiSizeRead) |
| { |
| /* handle is invalid, or the file is not open for reading, |
| or the file is locked */ |
| *pSize = 0; |
| err = M4ERR_BAD_CONTEXT; |
| } |
| else |
| { |
| pFileContext->read_position = pFileContext->read_position + uiSizeRead; |
| if ((M4OSA_UInt32)uiSizeRead < *pSize) |
| { |
| *pSize = uiSizeRead; |
| |
| /* This is the end of file */ |
| pFileContext->b_is_end_of_file = M4OSA_TRUE; |
| |
| err = M4WAR_NO_DATA_YET; |
| } |
| else |
| { |
| *pSize = uiSizeRead; |
| } |
| } |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| |
| return err; |
| } |
| |
| |
| /** |
| ************************************************************************ |
| * @brief This function seeks at the provided position in the core file |
| * reader (selected by its 'context'). The position is related to |
| * the seekMode parameter it can be either from the beginning, from |
| * the end or from the current postion. To support large file |
| * access (more than 2GBytes), the position is provided on a 64 |
| * bits. |
| * @note If this function returns an error the current position pointer |
| * in the file must not change. Else the current |
| * position pointer must be updated. |
| * @param context: (IN/OUT) Context of the core file reader |
| * @param seekMode: (IN) Seek access mode |
| * @param position: (IN/OUT) Position in the file |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_BAD_CONTEXT: provided context is not a valid one |
| * @return M4ERR_ALLOC: there is no more memory available |
| * @return M4ERR_FILE_INVALID_POSITION: the position cannot be reached |
| ************************************************************************ |
| */ |
| |
| M4OSA_ERR M4OSA_fileReadSeek(M4OSA_Context pContext, M4OSA_FileSeekAccessMode seekMode, |
| M4OSA_FilePosition* pPosition) |
| { |
| M4OSA_FileContext* pFileContext = (M4OSA_FileContext*)pContext; |
| M4OSA_ERR err; |
| |
| M4OSA_TRACE2_2("M4OSA_fileReadSeek : mode = %d pos = %lu", seekMode, |
| (pPosition != M4OSA_NULL) ? (*pPosition) : 0); |
| |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, |
| "M4OSA_fileReadSeek: pContext is M4OSA_NULL"); |
| M4OSA_DEBUG_IF2(0 == seekMode, M4ERR_PARAMETER, |
| "M4OSA_fileReadSeek: seekMode is 0"); |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pPosition, M4ERR_PARAMETER, |
| "M4OSA_fileReadSeek: pPosition is M4OSA_NULL"); |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, |
| M4ERR_BAD_CONTEXT, "M4OSA_fileReadSeek: semaphore_context is M4OSA_NULL"); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| if (M4OSA_kDescRWAccess == pFileContext->m_DescrModeAccess) |
| { |
| M4OSA_UInt32 SeekModeOption; |
| /* Go to the desired position */ |
| if (M4OSA_kFileSeekBeginning == seekMode) |
| { |
| SeekModeOption = SEEK_SET; |
| } |
| else if (M4OSA_kFileSeekEnd == seekMode) |
| { |
| SeekModeOption = SEEK_END; |
| } |
| else if (M4OSA_kFileSeekCurrent == seekMode) |
| { |
| SeekModeOption = SEEK_CUR; |
| } |
| else |
| { |
| M4OSA_TRACE1_0("M4OSA_fileReadSeek: END WITH ERROR !!! (CONVERION ERROR FOR THE SEEK MODE)"); |
| return M4ERR_PARAMETER; |
| } |
| |
| /** |
| * Go to the desired position */ |
| err = fseek(pFileContext->file_desc, *pPosition, SeekModeOption); |
| if(err != 0) |
| { |
| /* converts the error to PSW format*/ |
| err=((M4OSA_UInt32)(M4_ERR)<<30)+(((M4OSA_FILE_WRITER)&0x003FFF)<<16)+(M4OSA_Int16)(err); |
| M4OSA_TRACE1_1("M4OSA_FileReadSeek error:%x",err); |
| } |
| else |
| { |
| return M4NO_ERROR; |
| } |
| |
| /* Return without error */ |
| return err; |
| } |
| |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| if(pFileContext->current_seek != SeekRead) |
| { |
| |
| /* fseek to the last read position */ |
| err = M4OSA_fileCommonSeek(pContext, M4OSA_kFileSeekBeginning, |
| &(pFileContext->read_position)); |
| if(M4OSA_ERR_IS_ERROR(err)) |
| { |
| M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return err; |
| } |
| |
| pFileContext->current_seek = SeekRead; |
| } |
| |
| err = M4OSA_fileCommonSeek(pContext, seekMode, pPosition); |
| if(M4OSA_ERR_IS_ERROR(err)) |
| { |
| M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); |
| } |
| else |
| { |
| pFileContext->read_position = *pPosition; |
| } |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return err; |
| } |
| |
| |
| /** |
| ************************************************************************ |
| * @brief This function asks the core file reader to close the file |
| * (associated to the context). |
| * @note The context of the core file reader is freed. |
| * @param pContext: (IN/OUT) Context of the core file reader |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_BAD_CONTEXT: provided context is not a valid one |
| * @return M4ERR_ALLOC: there is no more memory available |
| ************************************************************************ |
| */ |
| M4OSA_ERR M4OSA_fileReadClose(M4OSA_Context pContext) |
| { |
| M4OSA_FileContext* pFileContext = (M4OSA_FileContext*)pContext; |
| |
| M4OSA_TRACE1_1("M4OSA_fileReadClose : pC = 0x%p", pContext); |
| |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, |
| "M4OSA_fileReadClose: pContext is M4OSA_NULL"); |
| |
| if(M4OSA_FILE_WRITER == pFileContext->coreID_write) |
| { |
| return M4NO_ERROR; |
| } |
| |
| return M4OSA_fileCommonClose(M4OSA_FILE_READER, pContext); |
| } |
| |
| |
| |
| |
| /** |
| ************************************************************************ |
| * @brief This function asks the core file reader to return the value |
| * associated with the optionID. The caller is responsible for |
| * allocating/de-allocating the memory of the value field. |
| * @note 'value' must be cast according to the type related to the |
| * optionID As the caller is responsible for |
| * allocating/de-allocating the 'value' field, the callee must copy |
| * this field to its internal variable. |
| * @param pContext: (IN/OUT) Context of the core file reader |
| * @param pOptionID: (IN) ID of the option |
| * @param pOptionValue: (OUT) Value of the option |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_BAD_CONTEXT: provided context is not a valid one |
| * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one |
| * @return M4ERR_WRITE_ONLY: this option is a write only one |
| * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented |
| ************************************************************************ |
| */ |
| M4OSA_ERR M4OSA_fileReadGetOption(M4OSA_Context pContext, M4OSA_FileReadOptionID optionID, |
| M4OSA_DataOption* pOptionValue) |
| { |
| M4OSA_FileContext* pFileContext = pContext; |
| |
| M4OSA_TRACE2_1("M4OSA_fileReadGetOption : option = 0x%x", optionID); |
| |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, |
| "M4OSA_fileReadGetOption: pContext is M4OSA_NULL"); |
| M4OSA_DEBUG_IF2(optionID == 0, M4ERR_PARAMETER, |
| "M4OSA_fileReadGetOption: optionID is 0"); |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pOptionValue, M4ERR_PARAMETER, |
| "M4OSA_fileReadGetOption: pOptionValue is M4OSA_NULL"); |
| |
| M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_FILE_READER), |
| M4ERR_BAD_OPTION_ID, "M4OSA_fileReadGetOption"); |
| M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_READABLE(optionID), |
| M4ERR_WRITE_ONLY, "M4OSA_fileReadGetOption"); |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, |
| M4ERR_BAD_CONTEXT, |
| "M4OSA_fileReadGetOption: semaphore_context is M4OSA_NULL"); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| switch(optionID) |
| { |
| #if(M4OSA_OPTIONID_FILE_READ_GET_FILE_POSITION == M4OSA_TRUE) |
| case M4OSA_kFileReadGetFilePosition: |
| { |
| M4OSA_FilePosition* pPosition = (M4OSA_FilePosition*)pOptionValue; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| *pPosition = pFileContext->read_position; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return M4NO_ERROR; |
| } |
| #endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_POSITION*/ |
| |
| #if(M4OSA_OPTIONID_FILE_READ_IS_EOF == M4OSA_TRUE) |
| case M4OSA_kFileReadIsEOF: |
| { |
| M4OSA_Bool* bIsEndOfFile = (M4OSA_Bool*)pOptionValue; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| *bIsEndOfFile = pFileContext->b_is_end_of_file; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return M4NO_ERROR; |
| } |
| #endif /*M4OSA_OPTIONID_FILE_READ_IS_EOF*/ |
| |
| |
| #if(M4OSA_OPTIONID_FILE_READ_GET_FILE_SIZE == M4OSA_TRUE) |
| case M4OSA_kFileReadGetFileSize: |
| { |
| M4OSA_FilePosition* pPosition = (M4OSA_FilePosition*)pOptionValue; |
| M4OSA_Int32 iSavePos = 0; |
| M4OSA_Int32 iSize = 0; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| /** |
| * Bugfix: update the file size. |
| * When a file is in read mode, may be another application is writing in. |
| * So, we have to update the file size */ |
| iSavePos = ftell(pFileContext->file_desc); /*1- Check the first position */ |
| fseek(pFileContext->file_desc, 0, SEEK_END); /*2- Go to the end of the file */ |
| iSize = ftell(pFileContext->file_desc); /*3- Check the file size*/ |
| fseek(pFileContext->file_desc, iSavePos, SEEK_SET); /*4- go to the first position*/ |
| pFileContext->file_size = iSize; |
| |
| *pPosition = pFileContext->file_size; |
| |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_semaphorePost(pFileContext->semaphore_context); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| return M4NO_ERROR; |
| } |
| #endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_SIZE*/ |
| |
| #if(M4OSA_OPTIONID_FILE_READ_GET_FILE_ATTRIBUTE == M4OSA_TRUE) |
| case M4OSA_kFileReadGetFileAttribute: |
| { |
| return M4OSA_fileCommonGetAttribute(pContext, |
| (M4OSA_FileAttribute*)pOptionValue); |
| } |
| #endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_ATTRIBUTE*/ |
| |
| #if(M4OSA_OPTIONID_FILE_READ_GET_URL == M4OSA_TRUE) |
| case M4OSA_kFileReadGetURL: |
| { |
| return M4OSA_fileCommonGetURL(pContext, (M4OSA_Char**)pOptionValue); |
| } |
| #endif /*M4OSA_OPTIONID_FILE_READ_GET_URL*/ |
| |
| case M4OSA_kFileReadLockMode: |
| { |
| *(M4OSA_UInt32*)pOptionValue = pFileContext->m_uiLockMode; |
| return M4NO_ERROR; |
| } |
| } |
| |
| M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_fileReadGetOption"); |
| |
| return M4ERR_NOT_IMPLEMENTED; |
| } |
| |
| /** |
| ************************************************************************ |
| * @fn M4OSA_ERR M4OSA_fileReadSetOption (M4OSA_Context context, |
| * M4OSA_OptionID optionID, M4OSA_DataOption optionValue)) |
| * @brief This function asks the core file reader to set the value associated with the optionID. |
| * The caller is responsible for allocating/de-allocating the memory of the value field. |
| * @note As the caller is responsible for allocating/de-allocating the 'value' field, the callee must copy this field |
| * to its internal variable. |
| * @param pContext: (IN/OUT) Context of the core file reader |
| * @param optionID: (IN) ID of the option |
| * @param value: (IN) Value of the option |
| * @return M4NO_ERROR: there is no error |
| * @return M4ERR_PARAMETER: at least one parameter is NULL |
| * @return M4ERR_BAD_CONTEXT: provided context is not a valid one |
| * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one |
| * @return M4ERR_READ_ONLY: this option is a read only one |
| * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented |
| ************************************************************************ |
| */ |
| M4OSA_ERR M4OSA_fileReadSetOption(M4OSA_Context pContext, |
| M4OSA_FileReadOptionID optionID, |
| M4OSA_DataOption optionValue) |
| { |
| M4OSA_FileContext* pFileContext = pContext; |
| |
| M4OSA_TRACE2_1("M4OSA_fileReadSetOption : option = 0x%x", optionID); |
| |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, |
| "M4OSA_fileReadSetOption: pContext is M4OSA_NULL"); |
| M4OSA_DEBUG_IF2(0 == optionID, M4ERR_PARAMETER, |
| "M4OSA_fileReadSetOption"); |
| M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_FILE_READER), |
| M4ERR_BAD_OPTION_ID, "M4OSA_fileReadSetOption"); |
| |
| M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_WRITABLE(optionID), |
| M4ERR_READ_ONLY, "M4OSA_fileReadSetOption"); |
| #ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE |
| M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, |
| M4ERR_BAD_CONTEXT, |
| "M4OSA_fileReadSetOption: semaphore_context is M4OSA_NULL"); |
| #endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ |
| |
| switch(optionID) |
| { |
| case M4OSA_kFileReadLockMode: |
| { |
| pFileContext->m_uiLockMode= (M4OSA_UInt32)*(M4OSA_UInt32*)optionValue; |
| return M4NO_ERROR; |
| } |
| default: |
| M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_fileReadSetOption"); |
| return M4ERR_NOT_IMPLEMENTED; |
| } |
| } |
| |
