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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* file_descriptor.cpp - FileDescriptor test
*/
#include <fcntl.h>
#include <iostream>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <libcamera/file_descriptor.h>
#include "test.h"
using namespace libcamera;
using namespace std;
class FileDescriptorTest : public Test
{
protected:
int init()
{
desc1_ = nullptr;
desc2_ = nullptr;
fd_ = open("/tmp", O_TMPFILE | O_RDWR, S_IRUSR | S_IWUSR);
if (fd_ < 0)
return TestFail;
/* Cache inode number of temp file. */
struct stat s;
if (fstat(fd_, &s))
return TestFail;
inodeNr_ = s.st_ino;
return 0;
}
int run()
{
/* Test creating empty FileDescriptor. */
desc1_ = new FileDescriptor();
if (desc1_->fd() != -1) {
std::cout << "Failed fd numerical check (default constructor)"
<< std::endl;
return TestFail;
}
delete desc1_;
desc1_ = nullptr;
/* Test creating FileDescriptor from numerical file descriptor. */
desc1_ = new FileDescriptor(fd_);
if (desc1_->fd() == fd_) {
std::cout << "Failed fd numerical check (int constructor)"
<< std::endl;
return TestFail;
}
if (!isValidFd(fd_) || !isValidFd(desc1_->fd())) {
std::cout << "Failed fd validity after construction (int constructor)"
<< std::endl;
return TestFail;
}
int fd = desc1_->fd();
delete desc1_;
desc1_ = nullptr;
if (!isValidFd(fd_) || isValidFd(fd)) {
std::cout << "Failed fd validity after destruction (int constructor)"
<< std::endl;
return TestFail;
}
/* Test creating FileDescriptor from other FileDescriptor. */
desc1_ = new FileDescriptor(fd_);
desc2_ = new FileDescriptor(*desc1_);
if (desc1_->fd() == fd_ || desc2_->fd() == fd_ || desc1_->fd() != desc2_->fd()) {
std::cout << "Failed fd numerical check (copy constructor)"
<< std::endl;
return TestFail;
}
if (!isValidFd(desc1_->fd()) || !isValidFd(desc2_->fd())) {
std::cout << "Failed fd validity after construction (copy constructor)"
<< std::endl;
return TestFail;
}
delete desc1_;
desc1_ = nullptr;
if (!isValidFd(desc2_->fd())) {
std::cout << "Failed fd validity after destruction (copy constructor)"
<< std::endl;
return TestFail;
}
delete desc2_;
desc2_ = nullptr;
/* Test creating FileDescriptor by taking over other FileDescriptor. */
desc1_ = new FileDescriptor(fd_);
fd = desc1_->fd();
desc2_ = new FileDescriptor(std::move(*desc1_));
if (desc1_->fd() != -1 || desc2_->fd() != fd) {
std::cout << "Failed fd numerical check (move constructor)"
<< std::endl;
return TestFail;
}
if (!isValidFd(desc2_->fd())) {
std::cout << "Failed fd validity after construction (move constructor)"
<< std::endl;
return TestFail;
}
delete desc1_;
desc1_ = nullptr;
delete desc2_;
desc2_ = nullptr;
/* Test creating FileDescriptor by copy assignment. */
desc1_ = new FileDescriptor();
desc2_ = new FileDescriptor(fd_);
fd = desc2_->fd();
*desc1_ = *desc2_;
if (desc1_->fd() != fd || desc2_->fd() != fd) {
std::cout << "Failed fd numerical check (copy assignment)"
<< std::endl;
return TestFail;
}
if (!isValidFd(desc1_->fd()) || !isValidFd(desc2_->fd())) {
std::cout << "Failed fd validity after construction (copy assignment)"
<< std::endl;
return TestFail;
}
delete desc1_;
desc1_ = nullptr;
delete desc2_;
desc2_ = nullptr;
/* Test creating FileDescriptor by move assignment. */
desc1_ = new FileDescriptor();
desc2_ = new FileDescriptor(fd_);
fd = desc2_->fd();
*desc1_ = std::move(*desc2_);
if (desc1_->fd() != fd || desc2_->fd() != -1) {
std::cout << "Failed fd numerical check (move assignment)"
<< std::endl;
return TestFail;
}
if (!isValidFd(desc1_->fd())) {
std::cout << "Failed fd validity after construction (move assignment)"
<< std::endl;
return TestFail;
}
delete desc1_;
desc1_ = nullptr;
delete desc2_;
desc2_ = nullptr;
return TestPass;
}
void cleanup()
{
delete desc2_;
delete desc1_;
if (fd_ > 0)
close(fd_);
}
private:
bool isValidFd(int fd)
{
struct stat s;
if (fstat(fd, &s))
return false;
/* Check that inode number matches cached temp file. */
return s.st_ino == inodeNr_;
}
int fd_;
ino_t inodeNr_;
FileDescriptor *desc1_, *desc2_;
};
TEST_REGISTER(FileDescriptorTest)
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