80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
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/*
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* Copyright (C) 2010 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 TESTHELPERS_H
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#define TESTHELPERS_H
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#include <utils/threads.h>
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namespace android {
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class Pipe {
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public:
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int sendFd;
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int receiveFd;
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Pipe() {
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int fds[2];
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::pipe(fds);
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receiveFd = fds[0];
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sendFd = fds[1];
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}
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~Pipe() {
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if (sendFd != -1) {
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::close(sendFd);
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}
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if (receiveFd != -1) {
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::close(receiveFd);
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}
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}
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status_t writeSignal() {
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ssize_t nWritten = ::write(sendFd, "*", 1);
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return nWritten == 1 ? 0 : -errno;
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}
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status_t readSignal() {
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char buf[1];
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ssize_t nRead = ::read(receiveFd, buf, 1);
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return nRead == 1 ? 0 : nRead == 0 ? -EPIPE : -errno;
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}
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};
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class DelayedTask : public Thread {
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int mDelayMillis;
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public:
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DelayedTask(int delayMillis) : mDelayMillis(delayMillis) { }
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protected:
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virtual ~DelayedTask() { }
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virtual void doTask() = 0;
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virtual bool threadLoop() {
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usleep(mDelayMillis * 1000);
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doTask();
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return false;
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}
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};
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} // namespace android
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#endif // TESTHELPERS_H
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