Index: mojo/edk/system/data_pipe.h |
diff --git a/mojo/edk/system/data_pipe.h b/mojo/edk/system/data_pipe.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..f17416bfdc220bdf44e21a6aa47fdcc825158981 |
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+++ b/mojo/edk/system/data_pipe.h |
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+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef MOJO_EDK_SYSTEM_DATA_PIPE_H_ |
+#define MOJO_EDK_SYSTEM_DATA_PIPE_H_ |
+ |
+#include "base/compiler_specific.h" |
+#include "mojo/edk/embedder/platform_handle_vector.h" |
+#include "mojo/edk/embedder/scoped_platform_handle.h" |
+#include "mojo/edk/system/system_impl_export.h" |
+#include "mojo/public/c/system/data_pipe.h" |
+#include "mojo/public/c/system/types.h" |
+#include "mojo/public/cpp/system/macros.h" |
+ |
+namespace mojo { |
+namespace edk { |
+class RawChannel; |
+ |
+// Shared code between DataPipeConsumerDispatcher and |
+// DataPipeProducerDispatcher. |
+class MOJO_SYSTEM_IMPL_EXPORT DataPipe { |
+ public: |
+ // The default options for |MojoCreateDataPipe()|. (Real uses should obtain |
+ // this via |ValidateCreateOptions()| with a null |in_options|; this is |
+ // exposed directly for testing convenience.) |
+ static MojoCreateDataPipeOptions GetDefaultCreateOptions(); |
+ |
+ // Validates and/or sets default options for |MojoCreateDataPipeOptions|. If |
+ // non-null, |in_options| must point to a struct of at least |
+ // |in_options->struct_size| bytes. |out_options| must point to a (current) |
+ // |MojoCreateDataPipeOptions| and will be entirely overwritten on success (it |
+ // may be partly overwritten on failure). |
+ static MojoResult ValidateCreateOptions( |
+ const MojoCreateDataPipeOptions* in_options, |
+ MojoCreateDataPipeOptions* out_options); |
+ |
+ // Helper methods used by DataPipeConsumerDispatcher and |
+ // DataPipeProducerDispatcher for serialization and deserialization. |
+ static void StartSerialize(bool have_channel_handle, |
+ bool have_shared_memory, |
+ size_t* max_size, |
+ size_t* max_platform_handles); |
+ static void EndSerialize(const MojoCreateDataPipeOptions& options, |
+ ScopedPlatformHandle channel_handle, |
+ ScopedPlatformHandle shared_memory_handle, |
+ size_t shared_memory_size, |
+ void* destination, |
+ size_t* actual_size, |
+ PlatformHandleVector* platform_handles); |
+ static ScopedPlatformHandle Deserialize( |
+ const void* source, |
+ size_t size, |
+ PlatformHandleVector* platform_handles, |
+ MojoCreateDataPipeOptions* options, |
+ ScopedPlatformHandle* shared_memory_handle, |
+ size_t* shared_memory_size); |
+}; |
+ |
+} // namespace edk |
+} // namespace mojo |
+ |
+#endif // MOJO_EDK_SYSTEM_DATA_PIPE_H_ |