8267511c96
To support both, WinUsb and Legacy driver APIs we need to abstract classes that depend on driver API details and then implement two sets of the actual classes: one for WinUsb, and another for the Legacy drivers, so we can choose in runtime which objects should be instantiated, depending on what type of driver we have underneath this API.
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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* Copyright (C) 2009 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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/** \file
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This file consists of implementation of class AdbIOCompletion that
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encapsulates a generic wrapper around OVERLAPPED Win32 structure
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returned from asynchronous I/O requests.
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*/
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#include "stdafx.h"
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#include "adb_io_completion.h"
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AdbIOCompletion::AdbIOCompletion(AdbEndpointObject* parent_io_obj,
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ULONG expected_trans_size,
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HANDLE event_hndl)
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: AdbObjectHandle(AdbObjectTypeIoCompletion),
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expected_transfer_size_(expected_trans_size),
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parent_io_object_(parent_io_obj) {
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ATLASSERT(NULL != parent_io_obj);
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parent_io_obj->AddRef();
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ZeroMemory(&overlapped_, sizeof(overlapped_));
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overlapped_.hEvent = event_hndl;
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}
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AdbIOCompletion::~AdbIOCompletion() {
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parent_io_object_->Release();
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}
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bool AdbIOCompletion::IsCompleted() {
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SetLastError(NO_ERROR);
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if (!IsOpened()) {
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SetLastError(ERROR_INVALID_HANDLE);
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return true;
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}
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return HasOverlappedIoCompleted(overlapped()) ? true : false;
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}
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