mirror of https://github.com/EdgeVPNio/evio.git
158 lines
3.5 KiB
C++
158 lines
3.5 KiB
C++
/*
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* EdgeVPNio
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* Copyright 2020, University of Florida
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef TINCAN_ASYNCIO_H_
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#define TINCAN_ASYNCIO_H_
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#include "rtc_base/logging.h"
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#if defined(_TNC_WIN)
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#include <Winsock2.h>
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#include <minwinbase.h>
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#endif
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#include "tincan_base.h"
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namespace tincan
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{
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enum AIO_OP
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{
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AIO_READ,
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AIO_WRITE,
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AIO_MAX
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};
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struct AsyncIo
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#if defined(_TNC_WIN)
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: public OVERLAPPED
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#endif // defined(_TNC_WIN)
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{
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AsyncIo() :
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buffer_to_transfer_(nullptr),
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context_(nullptr),
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bytes_to_transfer_(0),
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bytes_transferred_(0),
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flags_(AIO_READ),
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good_(true)
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{
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#if defined(_TNC_WIN)
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ZeroMemory(this, sizeof(OVERLAPPED));
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#endif // defined(_TNC_WIN)
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}
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AsyncIo(
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uint8_t* buffer,
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uint32_t bytes_to_transfer,
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void* context,
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AIO_OP flags,
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uint32_t bytes_transferred = 0) :
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buffer_to_transfer_(buffer),
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context_(context),
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bytes_to_transfer_(bytes_to_transfer),
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bytes_transferred_(bytes_transferred),
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flags_(flags),
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good_(true)
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{
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#if defined(_TNC_WIN)
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ZeroMemory(this, sizeof(OVERLAPPED));
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#endif // defined(_TNC_WIN)
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}
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#if !defined(_TNC_WIN)
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virtual ~AsyncIo() = default;
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#endif // defined(_TNC_WIN)
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void Initialize(
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uint8_t* buffer_to_transfer,
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uint32_t bytes_to_transfer,
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void* context = nullptr,
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AIO_OP flags = AIO_READ,
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uint32_t bytes_transferred = 0)
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{
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buffer_to_transfer_ = buffer_to_transfer;
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bytes_to_transfer_ = bytes_to_transfer;
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context_ = context;
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flags_ = flags;
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bytes_transferred_ = bytes_transferred;
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}
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void BufferToTransfer(uint8_t* val)
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{
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buffer_to_transfer_ = val;
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}
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uint8_t* BufferToTransfer()
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{
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return buffer_to_transfer_;
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}
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void BytesToTransfer(uint32_t val)
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{
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bytes_to_transfer_ = val;
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}
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uint32_t BytesToTransfer()
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{
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return bytes_to_transfer_;
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}
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void BytesTransferred(uint32_t val)
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{
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bytes_transferred_ = val;
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}
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uint32_t BytesTransferred()
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{
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return bytes_transferred_;
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}
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void Context(void * val)
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{
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context_ = val;
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}
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void * Context()
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{
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return context_;
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}
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bool IsRead()
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{
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return flags_ == AIO_READ;
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}
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void SetReadOp()
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{
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flags_ = AIO_READ;
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}
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bool IsWrite()
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{
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return flags_ == AIO_WRITE;
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}
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void SetWriteOp()
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{
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flags_ = AIO_WRITE;
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}
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bool IsGood()
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{
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return good_;
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}
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uint8_t * buffer_to_transfer_;
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void * context_;
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uint32_t bytes_to_transfer_;
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uint32_t bytes_transferred_;
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AIO_OP flags_;
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bool good_;
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};
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}
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#endif// TINCAN_ASYNCIO_H_
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