Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / deps / grpc / src / core / ext / filters / client_channel / resolver_factory.h

diff --git a/legacy-libs/grpc-cloned/deps/grpc/src/core/ext/filters/client_channel/resolver_factory.h b/legacy-libs/grpc-cloned/deps/grpc/src/core/ext/filters/client_channel/resolver_factory.h
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+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/support/string_util.h>
+
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/lib/gprpp/abstract.h"
+#include "src/core/lib/gprpp/memory.h"
+#include "src/core/lib/gprpp/orphanable.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/uri/uri_parser.h"
+
+namespace grpc_core {
+
+struct ResolverArgs {
+  /// The parsed URI to resolve.
+  grpc_uri* uri = nullptr;
+  /// Channel args to be included in resolver results.
+  const grpc_channel_args* args = nullptr;
+  /// Used to drive I/O in the name resolution process.
+  grpc_pollset_set* pollset_set = nullptr;
+  /// The combiner under which all resolver calls will be run.
+  grpc_combiner* combiner = nullptr;
+  /// The result handler to be used by the resolver.
+  UniquePtr<Resolver::ResultHandler> result_handler;
+};
+
+class ResolverFactory {
+ public:
+  /// Returns a bool indicating whether the input uri is valid to create a
+  /// resolver.
+  virtual bool IsValidUri(const grpc_uri* uri) const GRPC_ABSTRACT;
+
+  /// Returns a new resolver instance.
+  virtual OrphanablePtr<Resolver> CreateResolver(ResolverArgs args) const
+      GRPC_ABSTRACT;
+
+  /// Returns a string representing the default authority to use for this
+  /// scheme.
+  virtual UniquePtr<char> GetDefaultAuthority(grpc_uri* uri) const {
+    const char* path = uri->path;
+    if (path[0] == '/') ++path;
+    return UniquePtr<char>(gpr_strdup(path));
+  }
+
+  /// Returns the URI scheme that this factory implements.
+  /// Caller does NOT take ownership of result.
+  virtual const char* scheme() const GRPC_ABSTRACT;
+
+  virtual ~ResolverFactory() {}
+
+  GRPC_ABSTRACT_BASE_CLASS
+};
+
+}  // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H */