1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/component_updater/component_updater_paths.h" 6 7 #include "base/lazy_instance.h" 8 #include "base/path_service.h" 9 10 namespace component_updater { 11 12 namespace { 13 14 // This key gives the root directory of all the component installations. 15 static int g_components_root_key = -1; 16 17 } // namespace 18 19 bool PathProvider(int key, base::FilePath* result) { 20 DCHECK_GT(g_components_root_key, 0); 21 22 // Early exit here to prevent a potential infinite loop when we retrieve 23 // the path for g_components_root_key. 24 if (key < PATH_START || key > PATH_END) 25 return false; 26 27 base::FilePath cur; 28 if (!PathService::Get(g_components_root_key, &cur)) 29 return false; 30 31 switch (key) { 32 case DIR_COMPONENT_CLD2: 33 cur = cur.Append(FILE_PATH_LITERAL("CLD")); 34 break; 35 case DIR_RECOVERY_BASE: 36 cur = cur.Append(FILE_PATH_LITERAL("recovery")); 37 break; 38 case DIR_SWIFT_SHADER: 39 cur = cur.Append(FILE_PATH_LITERAL("SwiftShader")); 40 break; 41 case DIR_SW_REPORTER: 42 cur = cur.Append(FILE_PATH_LITERAL("SwReporter")); 43 break; 44 case DIR_COMPONENT_EV_WHITELIST: 45 cur = cur.Append(FILE_PATH_LITERAL("EVWhitelist")); 46 break; 47 default: 48 return false; 49 } 50 51 *result = cur; 52 return true; 53 } 54 55 // This cannot be done as a static initializer sadly since Visual Studio will 56 // eliminate this object file if there is no direct entry point into it. 57 void RegisterPathProvider(int components_root_key) { 58 DCHECK_EQ(g_components_root_key, -1); 59 DCHECK_GT(components_root_key, 0); 60 DCHECK(components_root_key < PATH_START || components_root_key > PATH_END); 61 62 g_components_root_key = components_root_key; 63 PathService::RegisterProvider(PathProvider, PATH_START, PATH_END); 64 } 65 66 } // namespace component_updater 67
