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Diffstat (limited to 'include/utils/backup_helpers.h')
| -rw-r--r-- | include/utils/backup_helpers.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/utils/backup_helpers.h b/include/utils/backup_helpers.h index 137c5f1..73b9989 100644 --- a/include/utils/backup_helpers.h +++ b/include/utils/backup_helpers.h @@ -1,15 +1,69 @@ +/* + * Copyright (C) 2009 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. + */ + #ifndef _UTILS_BACKUP_HELPERS_H #define _UTILS_BACKUP_HELPERS_H +#include <utils/Errors.h> +#include <utils/String8.h> + +namespace android { + int back_up_files(int oldSnapshotFD, int oldDataStream, int newSnapshotFD, char const* fileBase, char const* const* files, int fileCount); +/** + * Reads the data. + * + * If an error occurs, it poisons this object and all write calls will fail + * with the error that occurred. + */ +class BackupDataWriter +{ +public: + BackupDataWriter(int fd); + // does not close fd + ~BackupDataWriter(); + + status_t WriteAppHeader(const String8& packageName); + + status_t WriteEntityHeader(const String8& key, size_t dataSize); + status_t WriteEntityData(const void* data, size_t size); + + status_t WriteAppFooter(); + +private: + explicit BackupDataWriter(); + status_t write_padding_for(int n); + + int m_fd; + status_t m_status; + ssize_t m_pos; + int m_entityCount; +}; + #define TEST_BACKUP_HELPERS 0 #if TEST_BACKUP_HELPERS int backup_helper_test_empty(); int backup_helper_test_four(); int backup_helper_test_files(); +int backup_helper_test_data_writer(); #endif +} // namespace android + #endif // _UTILS_BACKUP_HELPERS_H |