libcamera/test/process/process_test.cpp
Laurent Pinchart dbafe16da7 meson: Remove -Wno-unused-parameter
We build libcamera with -Wno-unused-parameter and this doesn't cause
much issue internally. However, it prevents catching unused parameters
in inline functions defined in public headers. This can lead to
compilation warnings for applications compiled without
-Wno-unused-parameter.

To catch those issues, remove -Wno-unused-parameter and fix all the
related warnings with [[maybe_unused]].

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-08-25 02:58:04 +03:00

108 lines
2.1 KiB
C++

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* process_test.cpp - Process test
*/
#include <iostream>
#include <unistd.h>
#include <vector>
#include <libcamera/event_dispatcher.h>
#include <libcamera/timer.h>
#include "libcamera/internal/process.h"
#include "libcamera/internal/thread.h"
#include "libcamera/internal/utils.h"
#include "test.h"
using namespace std;
using namespace libcamera;
class ProcessTestChild
{
public:
int run(int status)
{
usleep(50000);
return status;
}
};
class ProcessTest : public Test
{
public:
ProcessTest()
: exitStatus_(Process::NotExited), exitCode_(-1)
{
}
protected:
int run()
{
EventDispatcher *dispatcher = Thread::current()->eventDispatcher();
Timer timeout;
int exitCode = 42;
vector<std::string> args;
args.push_back(to_string(exitCode));
proc_.finished.connect(this, &ProcessTest::procFinished);
/* Test that kill() on an unstarted process is safe. */
proc_.kill();
/* Test starting the process and retrieving the exit code. */
int ret = proc_.start("/proc/self/exe", args);
if (ret) {
cerr << "failed to start process" << endl;
return TestFail;
}
timeout.start(2000);
while (timeout.isRunning() && exitStatus_ == Process::NotExited)
dispatcher->processEvents();
if (exitStatus_ != Process::NormalExit) {
cerr << "process did not exit normally" << endl;
return TestFail;
}
if (exitCode != exitCode_) {
cerr << "exit code should be " << exitCode
<< ", actual is " << exitCode_ << endl;
return TestFail;
}
return TestPass;
}
private:
void procFinished([[maybe_unused]] Process *proc,
enum Process::ExitStatus exitStatus, int exitCode)
{
exitStatus_ = exitStatus;
exitCode_ = exitCode;
}
Process proc_;
enum Process::ExitStatus exitStatus_;
int exitCode_;
};
/*
* Can't use TEST_REGISTER() as single binary needs to act as both
* parent and child processes.
*/
int main(int argc, char **argv)
{
if (argc == 2) {
int status = std::stoi(argv[1]);
ProcessTestChild child;
return child.run(status);
}
return ProcessTest().execute();
}