Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/google/cacheinvalidation/impl/simple-registration-store.h

Index: third_party/cacheinvalidation/src/google/cacheinvalidation/impl/simple-registration-store.h
diff --git a/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/simple-registration-store.h b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/simple-registration-store.h
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index 0000000000000000000000000000000000000000..226cb876755390c0010ec025c97daac639637e19
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+++ b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/simple-registration-store.h
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+// Copyright 2012 Google Inc.
+//
+// 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.
+
+// Simple, map-based implementation of DigestStore.
+
+#ifndef GOOGLE_CACHEINVALIDATION_IMPL_SIMPLE_REGISTRATION_STORE_H_
+#define GOOGLE_CACHEINVALIDATION_IMPL_SIMPLE_REGISTRATION_STORE_H_
+
+#include <map>
+
+#include "google/cacheinvalidation/deps/digest-function.h"
+#include "google/cacheinvalidation/deps/string_util.h"
+#include "google/cacheinvalidation/impl/client-protocol-namespace-fix.h"
+#include "google/cacheinvalidation/impl/digest-store.h"
+
+namespace invalidation {
+
+using INVALIDATION_STL_NAMESPACE::map;
+
+class SimpleRegistrationStore : public DigestStore<ObjectIdP> {
+ public:
+  explicit SimpleRegistrationStore(DigestFunction* digest_function)
+      : digest_function_(digest_function) {
+    RecomputeDigest();
+  }
+
+  virtual ~SimpleRegistrationStore() {}
+
+  virtual bool Add(const ObjectIdP& oid);
+
+  virtual void Add(const vector<ObjectIdP>& oids,
+                   vector<ObjectIdP>* oids_to_send);
+
+  virtual bool Remove(const ObjectIdP& oid);
+
+  virtual void Remove(const vector<ObjectIdP>& oids,
+                      vector<ObjectIdP>* oids_to_send);
+
+  virtual void RemoveAll(vector<ObjectIdP>* oids);
+
+  virtual bool Contains(const ObjectIdP& oid);
+
+  virtual int size() {
+    return registrations_.size();
+  }
+
+  virtual string GetDigest() {
+    return digest_;
+  }
+
+  virtual void GetElements(const string& oid_digest_prefix, int prefix_len,
+                           vector<ObjectIdP>* result);
+
+  virtual string ToString() {
+    return StringPrintf("SimpleRegistrationStore: %d registrations",
+                        static_cast<int>(registrations_.size()));
+  }
+
+ private:
+  /* Recomputes the digests over all objects and sets this.digest. */
+  void RecomputeDigest();
+
+  /* All the registrations in the store mappd from the digest to the ibject id.
+   */
+  map<string, ObjectIdP> registrations_;
+
+  /* The function used to compute digests of objects. */
+  DigestFunction* digest_function_;
+
+  /* The memoized digest of all objects in registrations. */
+  string digest_;
+};
+
+}  // namespace invalidation
+
+#endif  // GOOGLE_CACHEINVALIDATION_IMPL_SIMPLE_REGISTRATION_STORE_H_