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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <unistd.h>
/**
* A pipe class for use when testing or fuzzing Looper
*/
class Pipe {
public:
int sendFd;
int receiveFd;
Pipe() {
int fds[2];
::pipe(fds);
receiveFd = fds[0];
sendFd = fds[1];
}
~Pipe() {
if (sendFd != -1) {
::close(sendFd);
}
if (receiveFd != -1) {
::close(receiveFd);
}
}
android::status_t writeSignal() {
ssize_t nWritten = ::write(sendFd, "*", 1);
return nWritten == 1 ? 0 : -errno;
}
android::status_t readSignal() {
char buf[1];
ssize_t nRead = ::read(receiveFd, buf, 1);
return nRead == 1 ? 0 : nRead == 0 ? -EPIPE : -errno;
}
};
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