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authormadmaxoft <github@xoft.cz>2014-08-13 12:33:31 +0200
committermadmaxoft <github@xoft.cz>2014-08-13 12:33:31 +0200
commit5e415c5b9565564c41c4f2f4144c6863c106bc46 (patch)
treeafc5094af00430967d0ae301b890d2dc894788dd /src/RankManager.h
parentRankMgr: Initial migration code. (diff)
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Diffstat (limited to 'src/RankManager.h')
-rw-r--r--src/RankManager.h32
1 files changed, 31 insertions, 1 deletions
diff --git a/src/RankManager.h b/src/RankManager.h
index ffe7638e1..3ccbd2fd4 100644
--- a/src/RankManager.h
+++ b/src/RankManager.h
@@ -9,6 +9,7 @@
#pragma once
#include "SQLiteCpp/Database.h"
+#include "SQLiteCpp/Transaction.h"
@@ -23,6 +24,29 @@ class cMojangAPI;
class cRankManager
{
public:
+ /** Acquire this lock to perform mass changes.
+ Improves performance by wrapping everything into a transaction.
+ Makes sure that no other thread is accessing the DB. */
+ class cMassChangeLock
+ {
+ public:
+ cMassChangeLock(cRankManager & a_RankManager) :
+ m_Lock(a_RankManager.m_CS),
+ m_Transaction(a_RankManager.m_DB)
+ {
+ }
+
+ ~cMassChangeLock()
+ {
+ m_Transaction.commit();
+ }
+
+ protected:
+ cCSLock m_Lock;
+ SQLite::Transaction m_Transaction;
+ };
+
+
/** Creates the rank manager. Needs to be initialized before other use. */
cRankManager(void);
@@ -80,6 +104,9 @@ public:
/** Adds a new permission group. No action if such a group already exists. */
void AddGroup(const AString & a_GroupName);
+ /** Bulk-adds groups. Group names that already exist are silently skipped. */
+ void AddGroups(const AStringVector & a_GroupNames);
+
/** Adds the specified permission group to the specified rank.
Fails if the rank or group names are not found.
Returns true if successful, false on error. */
@@ -163,9 +190,12 @@ public:
protected:
- /** The database storage for all the data. */
+ /** The database storage for all the data. Protected by m_CS. */
SQLite::Database m_DB;
+ /** The mutex protecting m_DB against multi-threaded access. */
+ cCriticalSection m_CS;
+
/** Set to true once the manager is initialized. */
bool m_IsInitialized;