0b15663830
(Second upload of this CL; original upload had the wrong version of usb_windows.cpp that caused a compilation error. Fixed error and re-tested.) This CL creates a Transport object to provide a generic interface for various transports. Specifically this is designed to be able to add UDP support to fastboot in an upcoming CL without changing the main program logic. Also includes some minor code style fixes and replaces malloc/free in the USB implementation files with smart pointers and std::string. Bug: http://b/22029765 Change-Id: I1175bbce08690fbd15f51e68166be9b3e9973ea0
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef TRANSPORT_H_
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#define TRANSPORT_H_
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#include <base/macros.h>
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// General interface to allow the fastboot protocol to be used over different
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// types of transports.
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class Transport {
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public:
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Transport() = default;
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virtual ~Transport() = default;
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// Reads |len| bytes into |data|. Returns the number of bytes actually
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// read or -1 on error.
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virtual ssize_t Read(void* data, size_t len) = 0;
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// Writes |len| bytes from |data|. Returns the number of bytes actually
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// written or -1 on error.
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virtual ssize_t Write(const void* data, size_t len) = 0;
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// Closes the underlying transport. Returns 0 on success.
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virtual int Close() = 0;
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// Blocks until the transport disconnects. Transports that don't support
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// this will return immediately. Returns 0 on success.
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virtual int WaitForDisconnect() { return 0; }
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private:
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DISALLOW_COPY_AND_ASSIGN(Transport);
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};
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#endif // TRANSPORT_H_
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