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104 lines
2.9 KiB
104 lines
2.9 KiB
/*
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* Copyright (C) 2006 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 AdbInterfaceEnumObject class that
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encapsulates enumerator of USB interfaces available through this API.
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*/
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#include "stdafx.h"
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#include "adb_api.h"
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#include "adb_interface_enum.h"
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#include "adb_helper_routines.h"
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AdbInterfaceEnumObject::AdbInterfaceEnumObject()
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: AdbObjectHandle(AdbObjectTypeInterfaceEnumerator) {
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current_interface_ = interfaces_.begin();
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}
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AdbInterfaceEnumObject::~AdbInterfaceEnumObject() {
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}
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bool AdbInterfaceEnumObject::InitializeEnum(GUID class_id,
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bool exclude_not_present,
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bool exclude_removed,
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bool active_only) {
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// Calc flags for SetupDiGetClassDevs
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DWORD flags = DIGCF_DEVICEINTERFACE;
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if (exclude_not_present)
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flags |= DIGCF_PRESENT;
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// Do the enum
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bool ret = EnumerateDeviceInterfaces(class_id,
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flags,
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exclude_removed,
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active_only,
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&interfaces_);
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// If enum was successfull set current enum pointer
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// to the beginning of the array
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if (ret)
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current_interface_ = interfaces_.begin();
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return ret;
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}
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bool AdbInterfaceEnumObject::Next(AdbInterfaceInfo* info, ULONG* size) {
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// Make sure that it's opened
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if (!IsOpened()) {
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SetLastError(ERROR_INVALID_HANDLE);
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return false;
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}
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ATLASSERT(NULL != size);
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if (NULL == size) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return false;
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}
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// Lets see if enum is over
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if (interfaces_.end() == current_interface_) {
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SetLastError(ERROR_NO_MORE_ITEMS);
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return false;
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}
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AdbInstanceEnumEntry& entry = *current_interface_;
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// Big enough?
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if ((NULL == info) || (*size < entry.GetFlatSize())) {
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*size = entry.GetFlatSize();
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return false;
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}
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// All checks passed
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entry.Save(info);
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current_interface_++;
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return true;
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}
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bool AdbInterfaceEnumObject::Reset() {
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// Make sure that it's opened
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if (!IsOpened()) {
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SetLastError(ERROR_INVALID_HANDLE);
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return false;
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}
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current_interface_ = interfaces_.begin();
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return true;
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}
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