42 lines
1.2 KiB
C++
42 lines
1.2 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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#include "Utils.h"
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#include <string.h>
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using android::base::ErrnoError;
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using android::base::Result;
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namespace android {
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void zeroMemory(uint8_t* data, size_t size) {
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memset(data, 0, size);
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}
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Result<void> setNonBlocking(android::base::borrowed_fd fd) {
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int flags = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_GETFL));
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if (flags == -1) {
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return ErrnoError() << "Could not get flags for fd";
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}
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if (int ret = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_SETFL, flags | O_NONBLOCK)); ret == -1) {
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return ErrnoError() << "Could not set non-blocking flag for fd";
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}
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return {};
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}
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} // namespace android
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