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#include <chrono>
#include <string>
#include <numeric>
#include <seastar/core/app-template.hh>
#include <seastar/core/sharded.hh>
#include "common/ceph_argparse.h"
#include "common/config_obs.h"
#include "crimson/common/config_proxy.h"
using Config = crimson::common::ConfigProxy;
const std::string test_uint_option = "osd_max_pgls";
const uint64_t INVALID_VALUE = (uint64_t)(-1);
const uint64_t EXPECTED_VALUE = 42;
class ConfigObs : public ceph::md_config_obs_impl<Config> {
uint64_t last_change = INVALID_VALUE;
uint64_t num_changes = 0;
const char** get_tracked_conf_keys() const override {
static const char* keys[] = {
test_uint_option.c_str(),
nullptr,
};
return keys;
}
void handle_conf_change(const Config& conf,
const std::set <std::string> &changes) override{
if (changes.count(test_uint_option)) {
last_change = conf.get_val<uint64_t>(test_uint_option);
num_changes += 1;
}
}
public:
ConfigObs() {
crimson::common::local_conf().add_observer(this);
}
uint64_t get_last_change() const { return last_change; }
uint64_t get_num_changes() const { return num_changes; }
seastar::future<> stop() {
crimson::common::local_conf().remove_observer(this);
return seastar::make_ready_future<>();
}
};
seastar::sharded<ConfigObs> sharded_cobs;
static seastar::future<> test_config()
{
return crimson::common::sharded_conf().start(EntityName{}, string_view{"ceph"}).then([] {
std::vector<const char*> args;
std::string cluster;
std::string conf_file_list;
auto init_params = ceph_argparse_early_args(args,
CEPH_ENTITY_TYPE_CLIENT,
&cluster,
&conf_file_list);
auto& conf = crimson::common::local_conf();
conf->name = init_params.name;
conf->cluster = cluster;
return conf.parse_config_files(conf_file_list);
}).then([] {
return crimson::common::sharded_conf().invoke_on(0, &Config::start);
}).then([] {
return sharded_cobs.start();
}).then([] {
auto& conf = crimson::common::local_conf();
return conf.set_val(test_uint_option, std::to_string(EXPECTED_VALUE));
}).then([] {
return crimson::common::sharded_conf().invoke_on_all([](Config& config) {
if (config.get_val<uint64_t>(test_uint_option) != EXPECTED_VALUE) {
throw std::runtime_error("configurations don't match");
}
if (sharded_cobs.local().get_last_change() != EXPECTED_VALUE) {
throw std::runtime_error("last applied changes don't match the latest config");
}
if (sharded_cobs.local().get_num_changes() != 1) {
throw std::runtime_error("num changes don't match actual changes");
}
});
}).finally([] {
return sharded_cobs.stop();
}).finally([] {
return crimson::common::sharded_conf().stop();
});
}
int main(int argc, char** argv)
{
seastar::app_template app;
return app.run(argc, argv, [&] {
return test_config().then([] {
std::cout << "All tests succeeded" << std::endl;
}).handle_exception([] (auto eptr) {
std::cout << "Test failure" << std::endl;
return seastar::make_exception_future<>(eptr);
});
});
}
/*
* Local Variables:
* compile-command: "make -j4 \
* -C ../../../build \
* unittest_seastar_config"
* End:
*/
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