// Copyright 2018 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.
|
|
#include "mojo/core/platform_handle_utils.h"
|
|
#include "build/build_config.h"
|
|
#if defined(OS_FUCHSIA)
|
#include <lib/zx/vmo.h>
|
#elif defined(OS_POSIX)
|
#include "base/files/scoped_file.h"
|
#elif defined(OS_WIN)
|
#include "base/win/scoped_handle.h"
|
#endif
|
|
#if defined(OS_MACOSX) && !defined(OS_IOS)
|
#include "base/mac/scoped_mach_port.h"
|
#endif
|
|
namespace mojo {
|
namespace core {
|
|
void ExtractPlatformHandlesFromSharedMemoryRegionHandle(
|
base::subtle::PlatformSharedMemoryRegion::ScopedPlatformHandle handle,
|
PlatformHandle* extracted_handle,
|
PlatformHandle* extracted_readonly_handle) {
|
#if defined(OS_WIN)
|
*extracted_handle = PlatformHandle(base::win::ScopedHandle(handle.Take()));
|
#elif defined(OS_FUCHSIA)
|
*extracted_handle = PlatformHandle(std::move(handle));
|
#elif defined(OS_MACOSX) && !defined(OS_IOS)
|
// This is a Mach port. Same code as above and below, but separated for
|
// clarity.
|
*extracted_handle = PlatformHandle(std::move(handle));
|
#elif defined(OS_ANDROID)
|
// This is a file descriptor. Same code as above, but separated for clarity.
|
*extracted_handle = PlatformHandle(std::move(handle));
|
#else
|
*extracted_handle = PlatformHandle(std::move(handle.fd));
|
*extracted_readonly_handle = PlatformHandle(std::move(handle.readonly_fd));
|
#endif
|
}
|
|
base::subtle::PlatformSharedMemoryRegion::ScopedPlatformHandle
|
CreateSharedMemoryRegionHandleFromPlatformHandles(
|
PlatformHandle handle,
|
PlatformHandle readonly_handle) {
|
#if defined(OS_WIN)
|
DCHECK(!readonly_handle.is_valid());
|
return handle.TakeHandle();
|
#elif defined(OS_FUCHSIA)
|
DCHECK(!readonly_handle.is_valid());
|
return zx::vmo(handle.TakeHandle());
|
#elif defined(OS_MACOSX) && !defined(OS_IOS)
|
DCHECK(!readonly_handle.is_valid());
|
return handle.TakeMachPort();
|
#elif defined(OS_ANDROID)
|
DCHECK(!readonly_handle.is_valid());
|
return handle.TakeFD();
|
#else
|
return base::subtle::ScopedFDPair(handle.TakeFD(), readonly_handle.TakeFD());
|
#endif
|
}
|
|
} // namespace core
|
} // namespace mojo
|
