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mojo/public/go/system/shared_buffer.go

Index: mojo/public/go/system/shared_buffer.go
diff --git a/mojo/public/go/system/shared_buffer.go b/mojo/public/go/system/shared_buffer.go
deleted file mode 100644
index dad439f816de8ac0c8980316f1d73fb7e3ccf6e1..0000000000000000000000000000000000000000
--- a/mojo/public/go/system/shared_buffer.go
+++ /dev/null
@@ -1,74 +0,0 @@
-// 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.
-
-package system
-
-// SharedBufferHandle is a handle for a buffer that can be shared between
-// applications.
-type SharedBufferHandle interface {
-	Handle
-
-	// DuplicateBufferHandle duplicates the handle to a buffer.
-	DuplicateBufferHandle(opts *DuplicateBufferHandleOptions) (MojoResult, SharedBufferHandle)
-
-	// MapBuffer maps the requested part of the shared buffer given by handle
-	// into memory with specified flags. On success, it returns slice that
-	// points to the requested shared buffer.
-	MapBuffer(offset uint64, numBytes int, flags MojoMapBufferFlags) (MojoResult, []byte)
-
-	// UnmapBuffer unmaps a buffer that was returned by MapBuffer.
-	UnmapBuffer(buffer []byte) MojoResult
-
-	// Gets the shared buffer information (buffer size, and the specified flags).
-	GetBufferInformation() (MojoResult, MojoBufferInformation)
-}
-
-type sharedBuffer struct {
-	// baseHandle should always be the first component of this struct,
-	// see |finalizeHandle()| for more details.
-	baseHandle
-}
-
-func (h *sharedBuffer) DuplicateBufferHandle(opts *DuplicateBufferHandleOptions) (MojoResult, SharedBufferHandle) {
-	var flags uint32
-	if opts != nil {
-		flags = uint32(opts.Flags)
-	}
-	h.core.mu.Lock()
-	r, dup := sysImpl.DuplicateBufferHandle(uint32(h.mojoHandle), flags)
-	h.core.mu.Unlock()
-	return MojoResult(r), core.AcquireNativeHandle(MojoHandle(dup)).ToSharedBufferHandle()
-}
-
-func (h *sharedBuffer) MapBuffer(offset uint64, numBytes int, flags MojoMapBufferFlags) (MojoResult, []byte) {
-	h.core.mu.Lock()
-	r, buf := sysImpl.MapBuffer(uint32(h.mojoHandle), offset, uint64(numBytes), uint32(flags))
-	h.core.mu.Unlock()
-	if r != 0 {
-		return MojoResult(r), nil
-	}
-
-	return MojoResult(r), buf
-}
-
-func (h *sharedBuffer) UnmapBuffer(buffer []byte) MojoResult {
-	h.core.mu.Lock()
-	r := sysImpl.UnmapBuffer(buffer)
-	h.core.mu.Unlock()
-	return MojoResult(r)
-}
-
-func (h *sharedBuffer) GetBufferInformation() (MojoResult, MojoBufferInformation) {
-	h.core.mu.Lock()
-	r, flags, numBytes := sysImpl.GetBufferInformation(uint32(h.mojoHandle))
-	h.core.mu.Unlock()
-
-	if r != 0 {
-		return MojoResult(r), MojoBufferInformation{}
-	}
-
-	return MojoResult(r), MojoBufferInformation{
-		Flags:    MojoBufferInformationFlags(flags),
-		NumBytes: numBytes}
-}