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| 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 #ifndef SYNC_API_ATTACHMENTS_ATTACHMENT_ID_H_ | |
| 6 #define SYNC_API_ATTACHMENTS_ATTACHMENT_ID_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include <set> | |
| 12 #include <string> | |
| 13 #include <vector> | |
| 14 | |
| 15 #include "sync/base/sync_export.h" | |
| 16 #include "sync/internal_api/public/util/immutable.h" | |
| 17 | |
| 18 namespace sync_pb { | |
| 19 class AttachmentIdProto; | |
| 20 } // namespace sync_pb | |
| 21 | |
| 22 namespace syncer { | |
| 23 | |
| 24 // Uniquely identifies an attachment. | |
| 25 // | |
| 26 // Two attachments with equal (operator==) AttachmentIds are considered | |
| 27 // equivalent. | |
| 28 class SYNC_EXPORT AttachmentId { | |
| 29 public: | |
| 30 AttachmentId(const AttachmentId& other); | |
| 31 ~AttachmentId(); | |
| 32 | |
| 33 // Default copy and assignment are welcome. | |
| 34 | |
| 35 bool operator==(const AttachmentId& other) const; | |
| 36 | |
| 37 bool operator!=(const AttachmentId& other) const; | |
| 38 | |
| 39 // Needed for using AttachmentId as key in std::map. | |
| 40 bool operator<(const AttachmentId& other) const; | |
| 41 | |
| 42 // Creates a unique id for an attachment. | |
| 43 // | |
| 44 // |size| is the attachment's size in bytes. | |
| 45 // | |
| 46 // |crc32c| is the attachment's crc32c. | |
| 47 static AttachmentId Create(size_t size, uint32_t crc32c); | |
| 48 | |
| 49 // Creates an attachment id from an initialized proto. | |
| 50 static AttachmentId CreateFromProto(const sync_pb::AttachmentIdProto& proto); | |
| 51 | |
| 52 const sync_pb::AttachmentIdProto& GetProto() const; | |
| 53 | |
| 54 // Returns the size (in bytes) the attachment. | |
| 55 size_t GetSize() const; | |
| 56 | |
| 57 // Returns the crc32c the attachment. | |
| 58 uint32_t GetCrc32c() const; | |
| 59 | |
| 60 private: | |
| 61 // Necessary since we forward-declare sync_pb::AttachmentIdProto; see comments | |
| 62 // in immutable.h. | |
| 63 struct SYNC_EXPORT ImmutableAttachmentIdProtoTraits { | |
| 64 typedef sync_pb::AttachmentIdProto* Wrapper; | |
| 65 static void InitializeWrapper(Wrapper* wrapper); | |
| 66 static void DestroyWrapper(Wrapper* wrapper); | |
| 67 static const sync_pb::AttachmentIdProto& Unwrap(const Wrapper& wrapper); | |
| 68 static sync_pb::AttachmentIdProto* UnwrapMutable(Wrapper* wrapper); | |
| 69 static void Swap(sync_pb::AttachmentIdProto* t1, | |
| 70 sync_pb::AttachmentIdProto* t2); | |
| 71 }; | |
| 72 | |
| 73 typedef Immutable<sync_pb::AttachmentIdProto, | |
| 74 ImmutableAttachmentIdProtoTraits> | |
| 75 ImmutableAttachmentIdProto; | |
| 76 | |
| 77 ImmutableAttachmentIdProto proto_; | |
| 78 | |
| 79 explicit AttachmentId(sync_pb::AttachmentIdProto* proto); | |
| 80 }; | |
| 81 | |
| 82 // All public interfaces use AttachmentIdList. AttachmentIdSet is used in | |
| 83 // implementations of algorithms where set properties are needed. | |
| 84 typedef std::vector<AttachmentId> AttachmentIdList; | |
| 85 typedef std::set<AttachmentId> AttachmentIdSet; | |
| 86 | |
| 87 } // namespace syncer | |
| 88 | |
| 89 #endif // SYNC_API_ATTACHMENTS_ATTACHMENT_ID_H_ | |
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Chromium Code Reviews
Issue 2130453004:
[Sync] Move //sync to //components/sync. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master