| Index: third_party/mojo/src/mojo/public/cpp/system/buffer.h
|
| diff --git a/third_party/mojo/src/mojo/public/cpp/system/buffer.h b/third_party/mojo/src/mojo/public/cpp/system/buffer.h
|
| deleted file mode 100644
|
| index 2b5bb50324f07cc14dec8493c84d474f1c885eb8..0000000000000000000000000000000000000000
|
| --- a/third_party/mojo/src/mojo/public/cpp/system/buffer.h
|
| +++ /dev/null
|
| @@ -1,132 +0,0 @@
|
| -// Copyright 2014 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.
|
| -
|
| -// This file provides a C++ wrapping around the Mojo C API for shared buffers,
|
| -// replacing the prefix of "Mojo" with a "mojo" namespace, and using more
|
| -// strongly-typed representations of |MojoHandle|s.
|
| -//
|
| -// Please see "third_party/mojo/src/mojo/public/c/system/buffer.h" for complete documentation of the
|
| -// API.
|
| -
|
| -#ifndef THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_SYSTEM_BUFFER_H_
|
| -#define THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_SYSTEM_BUFFER_H_
|
| -
|
| -#include <assert.h>
|
| -
|
| -#include "third_party/mojo/src/mojo/public/c/system/buffer.h"
|
| -#include "third_party/mojo/src/mojo/public/cpp/system/handle.h"
|
| -#include "third_party/mojo/src/mojo/public/cpp/system/macros.h"
|
| -
|
| -namespace mojo {
|
| -
|
| -// A strongly-typed representation of a |MojoHandle| referring to a shared
|
| -// buffer.
|
| -class SharedBufferHandle : public Handle {
|
| - public:
|
| - SharedBufferHandle() {}
|
| - explicit SharedBufferHandle(MojoHandle value) : Handle(value) {}
|
| -
|
| - // Copying and assignment allowed.
|
| -};
|
| -
|
| -static_assert(sizeof(SharedBufferHandle) == sizeof(Handle),
|
| - "Bad size for C++ SharedBufferHandle");
|
| -
|
| -typedef ScopedHandleBase<SharedBufferHandle> ScopedSharedBufferHandle;
|
| -static_assert(sizeof(ScopedSharedBufferHandle) == sizeof(SharedBufferHandle),
|
| - "Bad size for C++ ScopedSharedBufferHandle");
|
| -
|
| -// Creates a shared buffer. See |MojoCreateSharedBuffer()| for complete
|
| -// documentation.
|
| -inline MojoResult CreateSharedBuffer(
|
| - const MojoCreateSharedBufferOptions* options,
|
| - uint64_t num_bytes,
|
| - ScopedSharedBufferHandle* shared_buffer) {
|
| - assert(shared_buffer);
|
| - SharedBufferHandle handle;
|
| - MojoResult rv =
|
| - MojoCreateSharedBuffer(options, num_bytes, handle.mutable_value());
|
| - // Reset even on failure (reduces the chances that a "stale"/incorrect handle
|
| - // will be used).
|
| - shared_buffer->reset(handle);
|
| - return rv;
|
| -}
|
| -
|
| -// Duplicates a handle to a buffer, most commonly so that the buffer can be
|
| -// shared with other applications. See |MojoDuplicateBufferHandle()| for
|
| -// complete documentation.
|
| -//
|
| -// TODO(ggowan): Rename this to DuplicateBufferHandle since it is making another
|
| -// handle to the same buffer, not duplicating the buffer itself.
|
| -//
|
| -// TODO(vtl): This (and also the functions below) are templatized to allow for
|
| -// future/other buffer types. A bit "safer" would be to overload this function
|
| -// manually. (The template enforces that the in and out handles be of the same
|
| -// type.)
|
| -template <class BufferHandleType>
|
| -inline MojoResult DuplicateBuffer(
|
| - BufferHandleType buffer,
|
| - const MojoDuplicateBufferHandleOptions* options,
|
| - ScopedHandleBase<BufferHandleType>* new_buffer) {
|
| - assert(new_buffer);
|
| - BufferHandleType handle;
|
| - MojoResult rv = MojoDuplicateBufferHandle(
|
| - buffer.value(), options, handle.mutable_value());
|
| - // Reset even on failure (reduces the chances that a "stale"/incorrect handle
|
| - // will be used).
|
| - new_buffer->reset(handle);
|
| - return rv;
|
| -}
|
| -
|
| -// Maps a part of a buffer (specified by |buffer|, |offset|, and |num_bytes|)
|
| -// into memory. See |MojoMapBuffer()| for complete documentation.
|
| -template <class BufferHandleType>
|
| -inline MojoResult MapBuffer(BufferHandleType buffer,
|
| - uint64_t offset,
|
| - uint64_t num_bytes,
|
| - void** pointer,
|
| - MojoMapBufferFlags flags) {
|
| - assert(buffer.is_valid());
|
| - return MojoMapBuffer(buffer.value(), offset, num_bytes, pointer, flags);
|
| -}
|
| -
|
| -// Unmaps a part of a buffer that was previously mapped with |MapBuffer()|.
|
| -// See |MojoUnmapBuffer()| for complete documentation.
|
| -inline MojoResult UnmapBuffer(void* pointer) {
|
| - assert(pointer);
|
| - return MojoUnmapBuffer(pointer);
|
| -}
|
| -
|
| -// A wrapper class that automatically creates a shared buffer and owns the
|
| -// handle.
|
| -class SharedBuffer {
|
| - public:
|
| - explicit SharedBuffer(uint64_t num_bytes);
|
| - SharedBuffer(uint64_t num_bytes,
|
| - const MojoCreateSharedBufferOptions& options);
|
| - ~SharedBuffer();
|
| -
|
| - ScopedSharedBufferHandle handle;
|
| -};
|
| -
|
| -inline SharedBuffer::SharedBuffer(uint64_t num_bytes) {
|
| - MojoResult result = CreateSharedBuffer(nullptr, num_bytes, &handle);
|
| - MOJO_ALLOW_UNUSED_LOCAL(result);
|
| - assert(result == MOJO_RESULT_OK);
|
| -}
|
| -
|
| -inline SharedBuffer::SharedBuffer(
|
| - uint64_t num_bytes,
|
| - const MojoCreateSharedBufferOptions& options) {
|
| - MojoResult result = CreateSharedBuffer(&options, num_bytes, &handle);
|
| - MOJO_ALLOW_UNUSED_LOCAL(result);
|
| - assert(result == MOJO_RESULT_OK);
|
| -}
|
| -
|
| -inline SharedBuffer::~SharedBuffer() {
|
| -}
|
| -
|
| -} // namespace mojo
|
| -
|
| -#endif // THIRD_PARTY_MOJO_SRC_MOJO_PUBLIC_CPP_SYSTEM_BUFFER_H_
|
|
|