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| 1 // Copyright 2016 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 MOJO_PUBLIC_APPLICATION_CONNECTION_CONTEXT_H_ | |
| 6 #define MOJO_PUBLIC_APPLICATION_CONNECTION_CONTEXT_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 namespace mojo { | |
| 11 | |
| 12 // A |ConnectionContext| is used to track context about a given message pipe | |
| 13 // connection. It is usually associated to the "impl" side of an interface. | |
| 14 // | |
| 15 // |Application| (see //mojo/public/interfaces/application/application.mojom) | |
| 16 // accepts a message that looks like: | |
| 17 // | |
| 18 // AcceptConnection(string requestor_url, | |
| 19 // string resolved_url, | |
| 20 // ServiceProvider& services); | |
| 21 // | |
| 22 // Upon handling |AcceptConnection()|, the |ServiceProvider| implementation | |
| 23 // bound to |services| is given a |ConnectionContext| with |type = | |
| 24 // Type::INCOMING|, |remote_url = requestor_url|, and |connection_url = | |
| 25 // resolved_url|. | |
| 26 // | |
| 27 // The |ConnectionContext| is meant to be propagated: If the remote side uses | |
| 28 // its |ServiceProviderPtr| to request a |Foo| (from the local side), then the | |
| 29 // |Foo| implementation (again, on the local side) may be given (a copy of) the | |
| 30 // |ConnectionContext| described above. | |
| 31 struct ConnectionContext { | |
| 32 enum class Type { | |
| 33 UNKNOWN = 0, | |
| 34 INCOMING, | |
| 35 }; | |
| 36 | |
| 37 ConnectionContext() {} | |
| 38 ConnectionContext(Type type, | |
| 39 const std::string& remote_url, | |
| 40 const std::string& connection_url) | |
| 41 : type(type), remote_url(remote_url), connection_url(connection_url) {} | |
| 42 | |
| 43 Type type = Type::UNKNOWN; | |
| 44 | |
| 45 // The URL of the remote side of this connection (as provided by the |Shell|); | |
| 46 // if unknown/not applicable, this is empty. | |
| 47 std::string remote_url; | |
| 48 | |
| 49 // The URL used by the remote side to establish "this" connection (or a parent | |
| 50 // thereof); if unknown/not applicable, this is empty. | |
| 51 std::string connection_url; | |
| 52 }; | |
| 53 | |
| 54 } // namespace mojo | |
| 55 | |
| 56 #endif // MOJO_PUBLIC_APPLICATION_CONNECTION_CONTEXT_H_ | |
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