oysteikt/mpd
0
0
Fork 0
Code Issues Pull Requests Releases Activity

ProxyDatabasePlugin: add OO wrapper for mpd_entity

Browse Source 
Let the C++ compiler take care for freeing the objects safely.
This commit is contained in:
Max Kellermann 2012-08-15 21:59:56 +02:00
parent 0ed71fa027
commit fcf0f8291d
1 changed files with 32 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/db/ProxyDatabasePlugin.cxx
View File

@ -267,13 +267,39 @@ Visit(struct directory &parent, const struct mpd_playlist *playlist,
return success;
}
static std::list<struct mpd_entity *>
class ProxyEntity {
struct mpd_entity *entity;
public:
explicit ProxyEntity(struct mpd_entity *_entity)
:entity(_entity) {}
ProxyEntity(const ProxyEntity &other) = delete;
ProxyEntity(ProxyEntity &&other)
:entity(other.entity) {
other.entity = nullptr;
}
~ProxyEntity() {
if (entity != nullptr)
mpd_entity_free(entity);
}
ProxyEntity &operator=(const ProxyEntity &other) = delete;
operator const struct mpd_entity *() const {
return entity;
}
};
static std::list<ProxyEntity>
ReceiveEntities(struct mpd_connection *connection)
{
std::list<struct mpd_entity *> entities;
std::list<ProxyEntity> entities;
struct mpd_entity *entity;
while ((entity = mpd_recv_entity(connection)) != NULL)
entities.push_back(entity);
entities.push_back(ProxyEntity(entity));
mpd_response_finish(connection);
return entities;
@ -287,14 +313,11 @@ Visit(struct mpd_connection *connection, struct directory &parent,
if (!mpd_send_list_meta(connection, directory_get_path(&parent)))
return CheckError(connection, error_r);
std::list<struct mpd_entity *> entities = ReceiveEntities(connection);
if (!CheckError(connection, error_r)) {
for (auto entity : entities)
mpd_entity_free(entity);
std::list<ProxyEntity> entities(ReceiveEntities(connection));
if (!CheckError(connection, error_r))
return false;
}
for (auto entity : entities) {
for (const auto &entity : entities) {
switch (mpd_entity_get_type(entity)) {
case MPD_ENTITY_TYPE_UNKNOWN:
break;
@ -316,8 +339,6 @@ Visit(struct mpd_connection *connection, struct directory &parent,
visit_playlist, error_r);
break;
}
mpd_entity_free(entity);
}
return CheckError(connection, error_r);