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| 1 // Copyright (c) 2009 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 #ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_INSTALL_ACTION_H__ | |
| 6 #define CHROMEOS_PLATFORM_UPDATE_ENGINE_INSTALL_ACTION_H__ | |
| 7 | |
| 8 #include "base/scoped_ptr.h" | |
| 9 #include "update_engine/action.h" | |
| 10 #include "update_engine/delta_diff_parser.h" | |
| 11 #include "update_engine/install_plan.h" | |
| 12 #include "update_engine/update_metadata.pb.h" | |
| 13 | |
| 14 // The Install Action is responsible for ensuring the update that's been | |
| 15 // downloaded has been installed. This may be a no-op in the case of a full | |
| 16 // update, since those will be downloaded directly into the destination | |
| 17 // partition. However, for a delta update some work is required. | |
| 18 | |
| 19 // An InstallPlan struct must be passed to this action before PerformAction() | |
| 20 // is called so that this action knows if it's a delta update, and if so, | |
| 21 // what the paths are. | |
| 22 | |
| 23 // TODO(adlr): At the moment, InstallAction is synchronous. It should be | |
| 24 // updated to be asynchronous at some point. | |
| 25 | |
| 26 namespace chromeos_update_engine { | |
| 27 | |
| 28 class InstallAction; | |
| 29 class NoneType; | |
| 30 | |
| 31 template<> | |
| 32 class ActionTraits<InstallAction> { | |
| 33 public: | |
| 34 // Takes the InstallPlan for input | |
| 35 typedef InstallPlan InputObjectType; | |
| 36 // On success, puts the output device path on output | |
| 37 typedef std::string OutputObjectType; | |
| 38 }; | |
| 39 | |
| 40 class InstallAction : public Action<InstallAction> { | |
| 41 public: | |
| 42 InstallAction() {} | |
| 43 typedef ActionTraits<InstallAction>::InputObjectType InputObjectType; | |
| 44 typedef ActionTraits<InstallAction>::OutputObjectType OutputObjectType; | |
| 45 void PerformAction(); | |
| 46 | |
| 47 // This action is synchronous for now. | |
| 48 void TerminateProcessing() { CHECK(false); } | |
| 49 | |
| 50 // Debugging/logging | |
| 51 static std::string StaticType() { return "InstallAction"; } | |
| 52 std::string Type() const { return StaticType(); } | |
| 53 | |
| 54 private: | |
| 55 // Installs 'file' into mountpoint. 'path' is the path that 'file' | |
| 56 // should have when we reboot and mountpoint is root. | |
| 57 bool InstallFile(const std::string& mountpoint, | |
| 58 const DeltaArchiveManifest_File& file, | |
| 59 const std::string& path, | |
| 60 const DeltaDiffParser& parser) const; | |
| 61 // These are helpers for InstallFile. They focus on specific file types: | |
| 62 // Regular data files: | |
| 63 bool InstallFileRegularFile(const std::string& mountpoint, | |
| 64 const DeltaArchiveManifest_File& file, | |
| 65 const std::string& path, | |
| 66 const DeltaDiffParser& parser, | |
| 67 const bool exists) const; | |
| 68 // char/block devices, fifos, and sockets: | |
| 69 bool InstallFileSpecialFile(const std::string& mountpoint, | |
| 70 const DeltaArchiveManifest_File& file, | |
| 71 const std::string& path, | |
| 72 const DeltaDiffParser& parser, | |
| 73 const bool exists) const; | |
| 74 // symlinks: | |
| 75 bool InstallFileSymlink(const std::string& mountpoint, | |
| 76 const DeltaArchiveManifest_File& file, | |
| 77 const std::string& path, | |
| 78 const DeltaDiffParser& parser, | |
| 79 const bool exists) const; | |
| 80 | |
| 81 DISALLOW_COPY_AND_ASSIGN(InstallAction); | |
| 82 }; | |
| 83 | |
| 84 } // namespace chromeos_update_engine | |
| 85 | |
| 86 #endif // CHROMEOS_PLATFORM_UPDATE_ENGINE_INSTALL_ACTION_H__ | |
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Chromium Code Reviews
Issue 545072:
AU: Gut code for old updater. New protobuf for v2 updater. (Closed)
