diff options
Diffstat (limited to 'test/shared-fd.cpp')
| -rw-r--r-- | test/shared-fd.cpp | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/test/shared-fd.cpp b/test/shared-fd.cpp new file mode 100644 index 00000000..60e5d0aa --- /dev/null +++ b/test/shared-fd.cpp @@ -0,0 +1,243 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2019, Google Inc. + * + * shared_fd.cpp - SharedFD test + */ + +#include <fcntl.h> +#include <iostream> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> + +#include <libcamera/base/shared_fd.h> +#include <libcamera/base/utils.h> + +#include "test.h" + +using namespace libcamera; +using namespace std; + +class SharedFDTest : 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 SharedFD. */ + desc1_ = new SharedFD(); + + if (desc1_->fd() != -1) { + std::cout << "Failed fd numerical check (default constructor)" + << std::endl; + return TestFail; + } + + delete desc1_; + desc1_ = nullptr; + + /* + * Test creating SharedFD by copying numerical file + * descriptor. + */ + desc1_ = new SharedFD(fd_); + if (desc1_->fd() == fd_) { + std::cout << "Failed fd numerical check (lvalue ref constructor)" + << std::endl; + return TestFail; + } + + if (!isValidFd(fd_) || !isValidFd(desc1_->fd())) { + std::cout << "Failed fd validity after construction (lvalue ref 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 (lvalue ref constructor)" + << std::endl; + return TestFail; + } + + /* + * Test creating SharedFD by taking ownership of + * numerical file descriptor. + */ + int dupFd = dup(fd_); + int dupFdCopy = dupFd; + + desc1_ = new SharedFD(std::move(dupFd)); + if (desc1_->fd() != dupFdCopy) { + std::cout << "Failed fd numerical check (rvalue ref constructor)" + << std::endl; + return TestFail; + } + + if (dupFd != -1 || !isValidFd(fd_) || !isValidFd(desc1_->fd())) { + std::cout << "Failed fd validity after construction (rvalue ref constructor)" + << std::endl; + return TestFail; + } + + fd = desc1_->fd(); + + delete desc1_; + desc1_ = nullptr; + + if (!isValidFd(fd_) || isValidFd(fd)) { + std::cout << "Failed fd validity after destruction (rvalue ref constructor)" + << std::endl; + return TestFail; + } + + /* Test creating SharedFD from other SharedFD. */ + desc1_ = new SharedFD(fd_); + desc2_ = new SharedFD(*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 SharedFD by taking over other SharedFD. */ + desc1_ = new SharedFD(fd_); + fd = desc1_->fd(); + desc2_ = new SharedFD(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 SharedFD by copy assignment. */ + desc1_ = new SharedFD(); + desc2_ = new SharedFD(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 SharedFD by move assignment. */ + desc1_ = new SharedFD(); + desc2_ = new SharedFD(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_; + SharedFD *desc1_, *desc2_; +}; + +TEST_REGISTER(SharedFDTest) |