blob: b559baccbe6db197f81afb6224a8a1f45535929a [file] [log] [blame]
// Copyright 2017 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 "base/memory/shared_memory_handle.h"
#include <zircon/syscalls.h>
#include "base/logging.h"
#include "base/unguessable_token.h"
#include "starboard/types.h"
namespace base {
SharedMemoryHandle::SharedMemoryHandle() {}
SharedMemoryHandle::SharedMemoryHandle(zx_handle_t h,
size_t size,
const base::UnguessableToken& guid)
: handle_(h), guid_(guid), size_(size) {}
void SharedMemoryHandle::Close() const {
DCHECK(handle_ != ZX_HANDLE_INVALID);
zx_handle_close(handle_);
}
bool SharedMemoryHandle::IsValid() const {
return handle_ != ZX_HANDLE_INVALID;
}
SharedMemoryHandle SharedMemoryHandle::Duplicate() const {
zx_handle_t duped_handle;
zx_status_t status =
zx_handle_duplicate(handle_, ZX_RIGHT_SAME_RIGHTS, &duped_handle);
if (status != ZX_OK)
return SharedMemoryHandle();
SharedMemoryHandle handle(duped_handle, GetSize(), GetGUID());
handle.SetOwnershipPassesToIPC(true);
return handle;
}
zx_handle_t SharedMemoryHandle::GetHandle() const {
return handle_;
}
void SharedMemoryHandle::SetOwnershipPassesToIPC(bool ownership_passes) {
ownership_passes_to_ipc_ = ownership_passes;
}
bool SharedMemoryHandle::OwnershipPassesToIPC() const {
return ownership_passes_to_ipc_;
}
} // namespace base