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#include <DrbdResource.h>
#include <comparators.h>
const std::string DrbdResource::PROP_KEY_RES_NAME = "name";
// @throws std::bad_alloc
DrbdResource::DrbdResource(std::string& resource_name):
name(resource_name),
conn_list(new ConnectionsMap(&comparators::compare_string))
{
}
DrbdResource::~DrbdResource() noexcept
{
ConnectionsMap::NodesIterator dtor_iter(*conn_list);
while (dtor_iter.has_next())
{
ConnectionsMap::Node* node = dtor_iter.next();
delete node->get_key();
delete node->get_value();
}
conn_list->clear();
}
const std::string& DrbdResource::get_name() const
{
return name;
}
// @throws EventMessageException
void DrbdResource::update(PropsMap& event_props)
{
std::string* prop_role = event_props.get(&PROP_KEY_ROLE);
if (prop_role != nullptr)
{
role = parse_role(*prop_role);
}
}
// @throws std::bad_alloc, dsaext::DuplicateInsertException
void DrbdResource::add_connection(DrbdConnection* connection)
{
std::unique_ptr<std::string> conn_name(new std::string(connection->get_name()));
conn_list->insert(conn_name.get(), connection);
static_cast<void> (conn_name.release());
}
DrbdConnection* DrbdResource::get_connection(const std::string& connection_name) const
{
DrbdConnection* connection = conn_list->get(&connection_name);
return connection;
}
void DrbdResource::remove_connection(const std::string& connection_name)
{
ConnectionsMap::Node* node = conn_list->get_node(&connection_name);
delete node->get_key();
delete node->get_value();
conn_list->remove_node(node);
}
DrbdResource::ConnectionsIterator DrbdResource::connections_iterator()
{
return ConnectionsIterator(*this);
}
bool DrbdResource::has_role_alert()
{
return role_alert;
}
bool DrbdResource::has_quorum_alert()
{
return quorum_alert;
}
void DrbdResource::clear_state_flags()
{
role_alert = false;
quorum_alert = false;
StateFlags::clear_state_flags();
}
StateFlags::state DrbdResource::update_state_flags()
{
StateFlags::state last_state = obj_state;
role_alert = false;
quorum_alert = false;
// Alert for unknown resource role
switch (role)
{
case DrbdRole::resource_role::PRIMARY:
// fall-through
case DrbdRole::resource_role::SECONDARY:
// no warning, no alert
break;
case DrbdRole::resource_role::UNKNOWN:
// fall-through
default:
role_alert = true;
set_alert();
break;
}
// If the state may have improved, adjust to child objects status
if (last_state != StateFlags::state::NORM)
{
static_cast<void> (child_state_flags_changed());
}
return obj_state;
}
StateFlags::state DrbdResource::child_state_flags_changed()
{
StateFlags::clear_state_flags();
// quorum_alert depends on the state of the resource's volumes
quorum_alert = false;
// If any of the resource's volumes has marks/warnings/alerts, mark the resource
VolumesMap::ValuesIterator vol_iter = volumes_iterator();
size_t vol_count = vol_iter.get_size();
for (size_t vol_index = 0; vol_index < vol_count; ++vol_index)
{
DrbdVolume& vol = *(vol_iter.next());
if (vol.update_state_flags() != StateFlags::state::NORM)
{
set_mark();
}
if (vol.has_quorum_alert())
{
quorum_alert = true;
set_alert();
}
}
if (obj_state == StateFlags::state::NORM)
{
// If any of the resource's connections has marks/warnings/alerts, mark the resource
ConnectionsMap::ValuesIterator conn_iter = connections_iterator();
size_t conn_count = conn_iter.get_size();
for (size_t conn_index = 0; conn_index < conn_count; ++conn_index)
{
DrbdConnection& conn = *(conn_iter.next());
if (conn.update_state_flags() != StateFlags::state::NORM)
{
// Connections are in an abnormal state, mark this resource
set_mark();
break;
}
}
}
return obj_state;
}
// Creates (allocates and initializes) a new DrbdResource object from a map of properties
//
// @param event_props Reference to the map of properties from a 'drbdsetup events2' line
// @return Pointer to a newly created DrbdResource object
// @throws std::bad_alloc, dsaext::DuplicateInsertException
DrbdResource* DrbdResource::new_from_props(PropsMap& event_props)
{
DrbdResource* new_res {nullptr};
std::string* res_name = event_props.get(&PROP_KEY_RES_NAME);
if (res_name != nullptr)
{
new_res = new DrbdResource(*res_name);
}
if (new_res == nullptr)
{
throw EventMessageException();
}
return new_res;
}
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