| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include <fbl/function.h> |
| #include <fbl/unique_fd.h> |
| #include <fuchsia/paver/c/fidl.h> |
| #include <lib/fidl-utils/bind.h> |
| #include <lib/fzl/vmo-mapper.h> |
| #include <lib/zx/channel.h> |
| #include <lib/zx/vmo.h> |
| #include <zircon/types.h> |
| |
| namespace netsvc { |
| |
| // Reads the data into the vmo at offset, size. Can block. |
| using ReadCallback = fbl::Function<zx_status_t(void* /*buf*/, size_t /*offset*/, size_t /*size*/, |
| size_t* /*actual*/)>; |
| |
| class PayloadStreamer { |
| public: |
| PayloadStreamer(zx::channel chan, ReadCallback callback); |
| |
| PayloadStreamer(const PayloadStreamer&) = delete; |
| PayloadStreamer& operator=(const PayloadStreamer&) = delete; |
| PayloadStreamer(PayloadStreamer&&) = delete; |
| PayloadStreamer& operator=(PayloadStreamer&&) = delete; |
| |
| zx_status_t RegisterVmo(zx_handle_t vmo_handle, fidl_txn_t* txn); |
| |
| zx_status_t ReadData(fidl_txn_t* txn); |
| |
| private: |
| using Binder = fidl::Binder<PayloadStreamer>; |
| |
| static constexpr fuchsia_paver_PayloadStream_ops_t ops_ = { |
| .RegisterVmo = Binder::BindMember<&PayloadStreamer::RegisterVmo>, |
| .ReadData = Binder::BindMember<&PayloadStreamer::ReadData>, |
| }; |
| |
| ReadCallback read_; |
| zx::vmo vmo_; |
| fzl::VmoMapper mapper_; |
| size_t read_offset_ = 0; |
| bool eof_reached_ = false; |
| }; |
| |
| } // namespace netsvc |