95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* Copyright (C) 2020 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 _MTP_MOCK_HANDLE_H
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#define _MTP_MOCK_HANDLE_H
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#include <vector>
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typedef std::vector<uint8_t> packet_t;
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namespace android {
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class MtpMockHandle : public IMtpHandle {
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private:
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size_t mPacketNumber;
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size_t mPacketOffset;
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std::vector<packet_t> mPackets;
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public:
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MtpMockHandle() : mPacketNumber(0), mPacketOffset(0) {}
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void add_packet(packet_t pkt) { mPackets.push_back(pkt); }
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// Return number of bytes read/written, or -1 and errno is set
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int read(void *data, size_t len) {
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if (mPacketNumber >= mPackets.size()) {
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return 0;
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} else {
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int readAmt = 0;
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packet_t pkt = mPackets[mPacketNumber];
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ALOGD("%s: sz %zu, pkt %zu+%zu/%zu\n", __func__, len, mPacketNumber, mPacketOffset,
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pkt.size());
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// packet is bigger than what the caller can handle,
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if (pkt.size() > len) {
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memcpy(data, pkt.data() + mPacketOffset, len);
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mPacketOffset += len;
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readAmt = len;
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// packet is equal or smaller than the caller buffer
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} else {
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memcpy(data, pkt.data() + mPacketOffset, pkt.size());
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mPacketNumber++;
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mPacketOffset = 0;
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readAmt = pkt.size();
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}
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return readAmt;
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}
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}
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int write(const void *data, size_t len) {
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ALOGD("MockHandle %s: len=%zu\n", __func__, len);
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// fake the write
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return len;
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}
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// Return 0 if send/receive is successful, or -1 and errno is set
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int receiveFile(mtp_file_range mfr, bool zero_packet) {
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ALOGD("MockHandle %s\n", __func__);
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return 0;
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}
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int sendFile(mtp_file_range mfr) {
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ALOGD("MockHandle %s\n", __func__);
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return 0;
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}
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int sendEvent(mtp_event me) {
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ALOGD("MockHandle %s: len=%zu\n", __func__, me.length);
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return 0;
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}
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// Return 0 if operation is successful, or -1 else
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int start(bool ptp) { return 0; }
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void close() {}
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virtual ~MtpMockHandle() {}
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};
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}; // namespace android
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#endif // _MTP_MOCK_HANDLE_H
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