std::string
impl::check_requirements(const atf::tests::vars_map& metadata,
const atf::tests::vars_map& config)
{
std::string failure_reason = "";
for (atf::tests::vars_map::const_iterator iter = metadata.begin();
failure_reason.empty() && iter != metadata.end(); iter++) {
const std::string& name = (*iter).first;
const std::string& value = (*iter).second;
INV(!value.empty()); // Enforced by application/X-atf-tp parser.
if (name == "require.arch")
failure_reason = check_arch(value);
else if (name == "require.config")
failure_reason = check_config(value, config);
else if (name == "require.machine")
failure_reason = check_machine(value);
else if (name == "require.progs")
failure_reason = check_progs(value);
else if (name == "require.user")
failure_reason = check_user(value, config);
else {
// Unknown require.* properties are forbidden by the
// application/X-atf-tp parser.
INV(failure_reason.find("require.") != 0);
}
}
return failure_reason;
}
std::pair< int, int >
impl::get_required_user(const atf::tests::vars_map& metadata,
const atf::tests::vars_map& config)
{
const atf::tests::vars_map::const_iterator user = metadata.find(
"require.user");
if (user == metadata.end())
return std::make_pair(-1, -1);
if ((*user).second == "unprivileged") {
if (impl::is_root()) {
const atf::tests::vars_map::const_iterator iter = config.find(
"unprivileged-user");
try {
return impl::get_user_ids((*iter).second);
} catch (const std::exception& e) {
UNREACHABLE; // This has been validated by check_user.
throw e;
}
} else {
return std::make_pair(-1, -1);
}
} else
return std::make_pair(-1, -1);
}
std::pair< std::string, atf::process::status >
impl::run_test_case(const atf::fs::path& executable,
const std::string& test_case_name,
const std::string& test_case_part,
const atf::tests::vars_map& metadata,
const atf::tests::vars_map& config,
const atf::fs::path& resfile,
const atf::fs::path& workdir,
atf_tps_writer& writer)
{
// TODO: Capture termination signals and deliver them to the subprocess
// instead. Or maybe do something else; think about it.
test_case_params params(executable, test_case_name, test_case_part,
metadata, config, resfile, workdir);
atf::process::child child =
atf::process::fork(run_test_case_child,
atf::process::stream_capture(),
atf::process::stream_capture(),
static_cast< void * >(¶ms));
terminate_poll = false;
const atf::tests::vars_map::const_iterator iter = metadata.find("timeout");
INV(iter != metadata.end());
const unsigned int timeout =
atf::text::to_type< unsigned int >((*iter).second);
const pid_t child_pid = child.pid();
// Get the input stream of stdout and stderr.
impl::file_handle outfh = child.stdout_fd();
impl::file_handle errfh = child.stderr_fd();
bool timed_out = false;
// Process the test case's output and multiplex it into our output
// stream as we read it.
int fds[2] = {outfh.get(), errfh.get()};
child_muxer mux(fds, 2, writer);
try {
child_timer timeout_timer(timeout, child_pid, terminate_poll);
signal_programmer sigchld(SIGCHLD, sigchld_handler);
mux.mux(terminate_poll);
timed_out = timeout_timer.fired();
} catch (...) {
UNREACHABLE;
}
::killpg(child_pid, SIGKILL);
mux.flush();
atf::process::status status = child.wait();
std::string reason;
if (timed_out) {
// Don't assume the child process has been signaled due to the timeout
// expiration as older versions did. The child process may have exited
// but we may have timed out due to a subchild process getting stuck.
reason = "Test case timed out after " + atf::text::to_string(timeout) +
" " + (timeout == 1 ? "second" : "seconds");
}
return std::make_pair(reason, status);
}