66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/*
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* Copyright (C) 2018 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 "adb_unique_fd.h"
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#include <errno.h>
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#include <unistd.h>
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#include "sysdeps.h"
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#if !defined(_WIN32)
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bool Pipe(unique_fd* read, unique_fd* write, int flags) {
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int pipefd[2];
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#if !defined(__APPLE__)
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if (pipe2(pipefd, flags) != 0) {
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return false;
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}
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#else
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// Darwin doesn't have pipe2. Implement it ourselves.
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if (flags != 0 && (flags & ~(O_CLOEXEC | O_NONBLOCK)) != 0) {
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errno = EINVAL;
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return false;
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}
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if (pipe(pipefd) != 0) {
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return false;
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}
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if (flags & O_CLOEXEC) {
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if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) != 0 ||
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fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) != 0) {
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adb_close(pipefd[0]);
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adb_close(pipefd[1]);
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return false;
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}
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}
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if (flags & O_NONBLOCK) {
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if (fcntl(pipefd[0], F_SETFL, O_NONBLOCK) != 0 ||
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fcntl(pipefd[1], F_SETFL, O_NONBLOCK) != 0) {
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adb_close(pipefd[0]);
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adb_close(pipefd[1]);
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return false;
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}
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}
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#endif
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read->reset(pipefd[0]);
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write->reset(pipefd[1]);
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return true;
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}
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#endif
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