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feat(MainDb): improve performance of selectSipAddressId and selectChatRoomId

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This commit is contained in:
Ronan Abhamon 2018-02-14 15:01:24 +01:00
parent d0da718ac4
commit c20c54a284
3 changed files with 75 additions and 14 deletions
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1
src/db/abstract/abstract-db.cpp
View file

@ -92,6 +92,7 @@ bool AbstractDb::forceReconnect () {
try {
lInfo() << "Reconnect... Try: " << i;
session->reconnect();
init();
lInfo() << "Database reconnection successful!";
return true;
} catch (const soci::soci_error &e) {

10
src/db/main-db-p.h
View file

@ -28,20 +28,22 @@
// =============================================================================
namespace soci {
class row;
}
LINPHONE_BEGIN_NAMESPACE
class Content;
class MainDbPrivate : public AbstractDbPrivate {
public:
struct Statements;
mutable std::unordered_map<long long, std::weak_ptr<EventLog>> storageIdToEvent;
mutable std::unordered_map<long long, std::weak_ptr<ChatMessage>> storageIdToChatMessage;
private:
std::unique_ptr<Statements> statements;
void initStatements ();
// ---------------------------------------------------------------------------
// Low level API.
// ---------------------------------------------------------------------------

78
src/db/main-db.cpp
View file

@ -281,6 +281,59 @@ static constexpr string &blobToString (string &in) {
return in;
}
// -----------------------------------------------------------------------------
// Statements and helpers.
// -----------------------------------------------------------------------------
class StatementBind {
public:
StatementBind (soci::statement &stmt) : mStmt(stmt) {}
~StatementBind () {
mStmt.bind_clean_up();
}
template<typename T>
void bind (const T &var, const char *name) {
mStmt.exchange(soci::use(var, name));
}
template<typename T>
void bindResult (T &var) {
mStmt.exchange(soci::into(var));
}
bool exec () {
mStmt.define_and_bind();
return mStmt.execute(true);
}
private:
soci::statement &mStmt;
};
static inline unique_ptr<soci::statement> makeStatement (soci::session &session, const char *stmt) {
return makeUnique<soci::statement>(session.prepare << stmt);
}
struct MainDbPrivate::Statements {
typedef unique_ptr<soci::statement> Statement;
Statement selectSipAddressId;
Statement selectChatRoomId;
};
void MainDbPrivate::initStatements () {
soci::session *session = dbSession.getBackendSession();
statements = makeUnique<Statements>();
statements->selectSipAddressId = makeStatement(*session, "SELECT id FROM sip_address WHERE value = :sipAddress");
statements->selectChatRoomId = makeStatement(
*session,
"SELECT id FROM chat_room WHERE peer_sip_address_id = :peerSipAddressId AND local_sip_address_id = :localSipAddressId"
);
}
// -----------------------------------------------------------------------------
long long MainDbPrivate::insertSipAddress (const string &sipAddress) {
@ -481,21 +534,24 @@ void MainDbPrivate::insertChatMessageParticipant (long long eventId, long long s
// -----------------------------------------------------------------------------
long long MainDbPrivate::selectSipAddressId (const string &sipAddress) const {
soci::session *session = dbSession.getBackendSession();
long long id;
*session << "SELECT id FROM sip_address WHERE value = :sipAddress", soci::use(sipAddress), soci::into(id);
return session->got_data() ? id : -1;
StatementBind stmt(*statements->selectSipAddressId);
stmt.bind(sipAddress, "sipAddress");
stmt.bindResult(id);
return stmt.exec() ? id : -1;
}
long long MainDbPrivate::selectChatRoomId (long long peerSipAddressId, long long localSipAddressId) const {
soci::session *session = dbSession.getBackendSession();
long long id;
*session << "SELECT id FROM chat_room"
" WHERE peer_sip_address_id = :peerSipAddressId AND local_sip_address_id = :localSipAddressId",
soci::use(peerSipAddressId), soci::use(localSipAddressId), soci::into(id);
return session->got_data() ? id : -1;
StatementBind stmt(*statements->selectChatRoomId);
stmt.bind(peerSipAddressId, "peerSipAddressId");
stmt.bind(localSipAddressId, "localSipAddressId");
stmt.bindResult(id);
return stmt.exec() ? id : -1;
}
long long MainDbPrivate::selectChatRoomId (const ChatRoomId &chatRoomId) const {
@ -1768,6 +1824,8 @@ void MainDb::init () {
d->updateModuleVersion("events", ModuleVersionEvents);
d->updateModuleVersion("friends", ModuleVersionFriends);
d->initStatements();
}
bool MainDb::addEvent (const shared_ptr<EventLog> &eventLog) {