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127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/**
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******************************************************************************
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*
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* @file uavobjectpersistence.c
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
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* @brief handles uavo persistence
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* --
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "openpilot.h"
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#include "pios_struct_helper.h"
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#include "inc/uavobjectprivate.h"
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extern uintptr_t pios_uavo_settings_fs_id;
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/**
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* Save the data of the specified object to the file system (SD card).
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* If the object contains multiple instances, all of them will be saved.
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* A new file with the name of the object will be created.
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* The object data can be restored using the UAVObjLoad function.
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* @param[in] obj The object handle.
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* @param[in] instId The instance ID
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* @return 0 if success or -1 if failure
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*/
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int32_t UAVObjSave(UAVObjHandle obj_handle, uint16_t instId)
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{
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PIOS_Assert(obj_handle);
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if (UAVObjIsMetaobject(obj_handle)) {
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if (instId != 0) {
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return -1;
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}
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if (PIOS_FLASHFS_ObjSave(pios_uavo_settings_fs_id, UAVObjGetID(obj_handle), instId, (uint8_t *)MetaDataPtr((struct UAVOMeta *)obj_handle), UAVObjGetNumBytes(obj_handle)) != 0) {
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return -1;
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}
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} else {
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InstanceHandle instEntry = getInstance((struct UAVOData *)obj_handle, instId);
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if (instEntry == NULL) {
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return -1;
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}
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if (InstanceData(instEntry) == NULL) {
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return -1;
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}
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if (PIOS_FLASHFS_ObjSave(pios_uavo_settings_fs_id, UAVObjGetID(obj_handle), instId, InstanceData(instEntry), UAVObjGetNumBytes(obj_handle)) != 0) {
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return -1;
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}
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}
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return 0;
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}
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/**
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* Load an object from the file system (SD card).
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* A file with the name of the object will be opened.
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* The object data can be saved using the UAVObjSave function.
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* @param[in] obj The object handle.
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* @param[in] instId The object instance
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* @return 0 if success or -1 if failure
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*/
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int32_t UAVObjLoad(UAVObjHandle obj_handle, uint16_t instId)
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{
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PIOS_Assert(obj_handle);
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if (UAVObjIsMetaobject(obj_handle)) {
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if (instId != 0) {
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return -1;
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}
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// Fire event on success
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if (PIOS_FLASHFS_ObjLoad(pios_uavo_settings_fs_id, UAVObjGetID(obj_handle), instId, (uint8_t *)MetaDataPtr((struct UAVOMeta *)obj_handle), UAVObjGetNumBytes(obj_handle)) == 0) {
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sendEvent((struct UAVOBase *)obj_handle, instId, EV_UNPACKED);
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} else {
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return -1;
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}
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} else {
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InstanceHandle instEntry = getInstance((struct UAVOData *)obj_handle, instId);
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if (instEntry == NULL) {
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return -1;
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}
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// Fire event on success
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if (PIOS_FLASHFS_ObjLoad(pios_uavo_settings_fs_id, UAVObjGetID(obj_handle), instId, InstanceData(instEntry), UAVObjGetNumBytes(obj_handle)) == 0) {
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sendEvent((struct UAVOBase *)obj_handle, instId, EV_UNPACKED);
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} else {
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return -1;
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}
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}
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return 0;
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}
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/**
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* Delete an object from the file system (SD card).
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* @param[in] obj The object handle.
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* @param[in] instId The object instance
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* @return 0 if success or -1 if failure
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*/
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int32_t UAVObjDelete(UAVObjHandle obj_handle, uint16_t instId)
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{
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PIOS_Assert(obj_handle);
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PIOS_FLASHFS_ObjDelete(pios_uavo_settings_fs_id, UAVObjGetID(obj_handle), instId);
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return 0;
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}
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