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Diffstat (limited to 'inc/protected/persComDbAccess.h')
| -rw-r--r-- | inc/protected/persComDbAccess.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/inc/protected/persComDbAccess.h b/inc/protected/persComDbAccess.h new file mode 100644 index 0000000..0a169fd --- /dev/null +++ b/inc/protected/persComDbAccess.h @@ -0,0 +1,154 @@ +#ifndef OSS_PERSISTENCE_COMMON_DB_ACCESS_H +#define OSS_PERSISTENCE_COMMON_DB_ACCESS_H + +/********************************************************************************************************************** +* +* Copyright (C) 2012 Continental Automotive Systems, Inc. +* +* Author: Ionut.Ieremie@continental-corporation.com +* +* Interface: protected - Access to local and shared DBs +* +* For additional details see +* https://collab.genivi.org/wiki/display/genivi/SysInfraEGPersistenceConceptInterface +* +* This Source Code Form is subject to the terms of the Mozilla Public +* License, v. 2.0. If a copy of the MPL was not distributed with this +* file, You can obtain one at http://mozilla.org/MPL/2.0/. +* +* Date Author Reason +* 2013.01.23 uidl9757 4.0.0.0 CSP_WZ#2798: Change PERS_DB_MAX_SIZE_KEY_DATA to 16KB +* 2013.01.23 uidl9757 3.0.0.0 CSP_WZ#2060: CoC_SSW:Persistence: common interface to be used by both PCL and PAS +* +**********************************************************************************************************************/ + +/** \defgroup PERS_COM_DB_ACCESS Database access API + * \{ + */ + +#ifdef __cplusplus +extern "C" +{ +#endif /* #ifdef __cplusplus */ + +/** \defgroup PERS_DB_ACCESS_IF_VERSION Interface version + * \{ + */ +#define PERS_COM_DB_ACCESS_INTERFACE_VERSION (0x04000000U) +/** \} */ + + + +/** \defgroup PERS_DB_ACCESS_CONFIG Database configurations + * \{ + */ +/* maximum data size for a key type resourceID */ +#define PERS_DB_MAX_LENGTH_KEY_NAME 128 /**< Max. length of the key identifier */ +#define PERS_DB_MAX_SIZE_KEY_DATA 16384 /**< Max. size of the key entry (slot definition) */ +/** \} */ + + +/** \defgroup PERS_DB_ACCESS_FUNCTIONS Functions + * \{ + */ + + +/** + * \brief Obtain a handler to DB indicated by dbPathname + * \note : DB is created if it does not exist and (bForceCreationIfNotPresent != 0) + * + * \param dbPathname [in] absolute path to database (length limited to \ref PERS_ORG_MAX_LENGTH_PATH_FILENAME) + * \param bForceCreationIfNotPresent [in] if !=0x0, the database is created if it does not exist + * + * \return >= 0 for valid handler, negative value for error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbOpen(char const * dbPathname, unsigned char bForceCreationIfNotPresent) ; + +/** + * \brief Close handler to DB + * + * \param handlerDB [in] handler obtained with persComDbOpen + * + * \return 0 for success, negative value for error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbClose(signed int handlerDB) ; + +/** + * \brief write a key-value pair into local/shared database + * + * \param handlerDB [in] handler obtained with persComDbOpen + * \param key [in] key's name (length limited to \ref PERS_DB_MAX_LENGTH_KEY_NAME) + * \param data [in] buffer with key's data + * \param dataSize [in] size of key's data (max allowed \ref PERS_DB_MAX_SIZE_KEY_DATA) + * + * \return 0 for success, negative value otherwise (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbWriteKey(signed int handlerDB, char const * key, char const * data, signed int dataSize) ; + + +/** + * \brief read a key's value from local/shared database + * + * \param handlerDB [in] handler obtained with persComDbOpen + * \param key [in] key's name (length limited to \ref PERS_DB_MAX_LENGTH_KEY_NAME) + * \param dataBuffer_out [out]buffer where to return the read data + * \param dataBufferSize [in] size of dataBuffer_out + * + * \return read size, or negative value in case of error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbReadKey(signed int handlerDB, char const * key, char* dataBuffer_out, signed int dataBufferSize) ; + +/** + * \brief read a key's value from local/shared database + * + * \param handlerDB [in] handler obtained with persComDbOpen + * \param key [in] key's name (length limited to \ref PERS_DB_MAX_LENGTH_KEY_NAME) + * + * \return key's size, or negative value in case of error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbGetKeySize(signed int handlerDB, char const * key) ; + +/** + * \brief delete key from local/shared database + * + * \param handlerDB [in] handler obtained with persComDbOpen + * \param key [in] key's name (length limited to \ref PERS_DB_MAX_LENGTH_KEY_NAME) + * + * \return 0 for success, negative value otherwise (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbDeleteKey(signed int handlerDB, char const * key) ; + + +/** + * \brief Find the buffer's size needed to accomodate the list of keys' names in local/shared database + * + * \param handlerDB [in] handler obtained with persComDbOpen + * + * \return needed size, or negative value in case of error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbGetSizeKeysList(signed int handlerDB) ; + + +/** + * \brief Obtain the list of the keys' names in local/shared database + * \note : keys in the list are separated by '\0' + * + * \param handlerDB [in] handler obtained with persComDbOpen + * \param listBuffer_out [out]buffer where to return the list of keys + * \param listBufferSize [in] size of listingBuffer_out + * \return >=0 for size of the list, or negative value in case of error (\ref PERS_COM_ERROR_CODES_DEFINES) + */ +signed int persComDbGetKeysList(signed int handlerDB, char* listBuffer_out, signed int listBufferSize) ; + +/** \} */ /* End of PERS_DB_ACCESS_FUNCTIONS */ + + +#ifdef __cplusplus +} +#endif /* extern "C" { */ +/** \} */ /* End of PERS_COM_DB_ACCESS */ +#endif /* OSS_PERSISTENCE_COMMON_DB_ACCESS_H */ + + + + |