MatrixManager::~MatrixManager()
{
stop();
::sailor::WriteLocker instance_locker(&_instance_lock);
::sailor::WriteLocker expect_locker(&_expect_lock);
// delete instance
clear_instance_list();
// delete expect
if (_expect_list != NULL) {
delete _expect_list;
_expect_list = NULL;
}
}
int
main_menu(void)
{
MENU *my_menu = NULL;
ITEM **my_items = NULL;
struct tool_instance *list = NULL;
const char *ret_msg = NULL;
// Init at refresh for first loop.
int c = 'R';
do
{
switch (c)
{
// Navigate in the menu
case KEY_DOWN:
case KEY_RIGHT:
menu_driver(my_menu, REQ_DOWN_ITEM);
break ;
case KEY_UP:
case KEY_LEFT:
menu_driver(my_menu, REQ_UP_ITEM);
break ;
// Select a migration to monitor
case ' ':
case 13: // Enter key
{
if (item_count(my_menu) > 0)
{
ITEM *curitem = current_item(my_menu);
if (view_instance(item_description(curitem))
!= EXIT_SUCCESS)
{
ret_msg = "An error occured while trying to display the tool's data.";
}
}
}
// No break here to allow refreshing the list
// when coming out of the instance display.
// Refresh the list.
case 'r':
case 'R':
if (list)
clear_instance_list(list);
list = get_instance_list();
if (list == NULL)
mvprintw(0, 0,
"cloudmig-view: No cloudmig tool is running at the moment.\n");
if (my_menu)
clear_menu(my_menu, my_items);
my_items = NULL;
my_menu = NULL;
if (fill_menu(list, &my_items, &my_menu))
return EXIT_FAILURE;
post_menu(my_menu);
break;
// Leave the monitor
case 'q':
case 'Q':
break ;
// Ignore the others
default:
break ;
}
mvprintw(LINES - 4, 0,
"Use <SPACE> or <ENTER> to select the process to monitor.");
mvprintw(LINES - 3, 0,
" <q> or <Q> to quit this program.");
mvprintw(LINES - 2, 0,
" <r> or <R> to see refresh the list manually.");
if (ret_msg)
{
mvprintw(LINES -6, 0, "%.*s", COLS, ret_msg);
ret_msg = NULL;
}
refresh();
} while ((c = getch()) != 'q');
return EXIT_FAILURE;
}
bool MatrixManager::load_instance_from_file()
{
assert(g_config);
// private so not need to lock.
if (!_instance_list.empty()) {
LOG.warn("MatrixManager: instance_list is not empty, could not load from file.");
}
_host_info.init_used_resource();
_current_generation = 0;
DIR * dir = NULL;
struct dirent dire, *dirp = NULL;
bool ret = true;
errno = 0;
std::vector<uint64_t> tmp_generation_list;
dir = opendir(g_config->META_PATH);
if (NULL == dir) {
LOG.error("MatrixManager: open dir %s fail: %d.", g_config->META_PATH, errno);
return false;
}
memset(&dire, 0, sizeof(dire));
errno = 0;
while (readdir_r(dir, &dire, &dirp) == 0) {
if (dirp == NULL) {
LOG.trace("MatrixManager: load_instance_from_file no more entry to read");
break;
}
std::string name = dire.d_name;
if (name == "." || name == "..") {
LOG.trace("MatrixManager: load_instance_from_file skip %s", name.c_str());
continue;
}
LOG.info("MatrixManager: load_instance_from_file %s.", name.c_str());
Instance* slot = NULL;
try {
slot = new Instance(name);
}
catch (std::exception& e) {
LOG.error("MatrixManager: failed to load instance: %s", e.what());
ret = false;
break;
}
const InstanceInfo& instance_info = slot->get_instance_info();
// check dup instance_name
if (_instance_list.find(instance_info.get_instance_name()) != _instance_list.end()) {
LOG.error("MatrixManager: dup service meta find (dup instance name) %s", name.c_str());
delete slot;
ret = false;
break;
}
// check dup generation
if (std::find(tmp_generation_list.begin(), tmp_generation_list.end(), slot->get_generation())
!= tmp_generation_list.end())
{
LOG.error("MatrixManager: dup service meta find (dup generation) %s", name.c_str());
delete slot;
ret = false;
break;
}
_instance_list.insert(std::pair<std::string, Instance*>(instance_info.get_instance_name(), slot));
_host_info.use_resource(instance_info.get_instance_meta()._resource);
tmp_generation_list.push_back(slot->get_generation());
if (slot->get_generation() >= _current_generation) {
_current_generation = slot->get_generation() + 1;
}
}
if (errno != 0) {
ret = false;
LOG.error("MatrixManager: failed to read dir %s, errno: %d", g_config->META_PATH, errno);
}
closedir(dir);
if (!ret) {
clear_instance_list();
_host_info.init_used_resource();
_current_generation = 0;
}
return ret;
}