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| 1 // Copyright 2006-2009 Google Inc. | |
| 2 // | |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 // you may not use this file except in compliance with the License. | |
| 5 // You may obtain a copy of the License at | |
| 6 // | |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 // | |
| 9 // Unless required by applicable law or agreed to in writing, software | |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 // See the License for the specific language governing permissions and | |
| 13 // limitations under the License. | |
| 14 // ======================================================================== | |
| 15 // | |
| 16 // Defines class FileStore | |
| 17 | |
| 18 #include <vector> | |
| 19 #include "omaha/base/debug.h" | |
| 20 #include "omaha/base/file.h" | |
| 21 #include "omaha/base/file_store.h" | |
| 22 #include "omaha/base/string.h" | |
| 23 #include "omaha/base/utils.h" | |
| 24 | |
| 25 namespace omaha { | |
| 26 | |
| 27 // Open the store | |
| 28 bool FileStore::Open(const TCHAR* file_path) { | |
| 29 file_path_ = String_MakeEndWith(file_path, _T("\\"), false); | |
| 30 return true; | |
| 31 } | |
| 32 | |
| 33 // Close the store | |
| 34 bool FileStore::Close() { | |
| 35 file_path_.Empty(); | |
| 36 return true; | |
| 37 } | |
| 38 | |
| 39 // Clear the store | |
| 40 bool FileStore::Clear() { | |
| 41 if (File::Exists(file_path_) && File::IsDirectory(file_path_)) { | |
| 42 return SUCCEEDED(DeleteDirectoryFiles(file_path_)); | |
| 43 } else { | |
| 44 return true; | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 // Read a value from the store | |
| 49 bool FileStore::Read(const TCHAR* name, std::vector<byte>* data) const { | |
| 50 ASSERT1(name); | |
| 51 ASSERT1(data); | |
| 52 | |
| 53 return Exists(name) && SUCCEEDED(ReadEntireFile(file_path_ + name, 0, data)); | |
| 54 } | |
| 55 | |
| 56 // Write a value to the store | |
| 57 bool FileStore::Write(const TCHAR* name, byte* data, int data_size) { | |
| 58 ASSERT1(name); | |
| 59 ASSERT1(data); | |
| 60 ASSERT1(data_size); | |
| 61 | |
| 62 std::vector<byte> buffer(data_size); | |
| 63 memcpy(&buffer.front(), data, data_size); | |
| 64 | |
| 65 return SUCCEEDED(WriteEntireFile(file_path_ + name, buffer)); | |
| 66 } | |
| 67 | |
| 68 // Check to see a named value exists in the store | |
| 69 bool FileStore::Exists(const TCHAR* name) const { | |
| 70 ASSERT1(name); | |
| 71 | |
| 72 return File::Exists(file_path_ + name); | |
| 73 } | |
| 74 | |
| 75 // Remove a value from the store | |
| 76 bool FileStore::Remove(const TCHAR* name) { | |
| 77 ASSERT1(name); | |
| 78 | |
| 79 return SUCCEEDED(File::Remove(file_path_ + name)); | |
| 80 } | |
| 81 | |
| 82 // Get the number of values for this store | |
| 83 bool FileStore::GetValueCount(uint32* value_count) { | |
| 84 ASSERT1(value_count); | |
| 85 | |
| 86 std::vector<CString> matching_paths; | |
| 87 | |
| 88 if (FAILED(File::GetWildcards(file_path_, _T("*"), &matching_paths))) { | |
| 89 return false; | |
| 90 } | |
| 91 | |
| 92 *value_count = matching_paths.size(); | |
| 93 | |
| 94 return true; | |
| 95 } | |
| 96 | |
| 97 // Get the value name for the given value name index | |
| 98 bool FileStore::GetValueNameAt(uint32 index, CString* value_name) { | |
| 99 ASSERT1(value_name); | |
| 100 | |
| 101 std::vector<CString> matching_paths; | |
| 102 | |
| 103 if (FAILED(File::GetWildcards(file_path_, _T("*"), &matching_paths))) { | |
| 104 return false; | |
| 105 } | |
| 106 if (index >= matching_paths.size()) { | |
| 107 return false; | |
| 108 } | |
| 109 | |
| 110 *value_name = matching_paths[index].Mid(file_path_.GetLength()); | |
| 111 | |
| 112 return true; | |
| 113 } | |
| 114 | |
| 115 } // namespace omaha | |
| 116 | |
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Chromium Code Reviews
Issue 624713003:
Keep only base/extractor.[cc|h]. (Closed)
Base URL: https://chromium.googlesource.com/external/omaha.git@master