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Add SqliteNetworkConfigMaster::DBC for external access to raw sqlite3 db.

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This commit is contained in:
Adam Ierymenko 2015-03-20 12:21:18 -07:00
parent a8a92c5b89
commit 7ee1a1151f
1 changed files with 22 additions and 0 deletions
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22
netconf/SqliteNetworkConfigMaster.hpp
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@ -39,12 +39,16 @@
#include "../node/Constants.hpp"
#include "../node/NetworkConfigMaster.hpp"
#include "../node/Mutex.hpp"
#include "../node/NonCopyable.hpp"
namespace ZeroTier {
class SqliteNetworkConfigMaster : public NetworkConfigMaster
{
public:
class DBC;
friend class SqliteNetworkConfigMaster::DBC;
SqliteNetworkConfigMaster(const Identity &signingId,const char *dbPath);
virtual ~SqliteNetworkConfigMaster();
@ -80,6 +84,24 @@ private:
sqlite3_stmt *_sCacheNetconf;
Mutex _lock;
public:
/**
* Provides a safe interface for direct access to this master's database
*
* This acts as both a contextual lock of the master's Mutex and a pointer
* to the Sqlite3 database instance. Dereferencing this with * yields the
* sqlite3* pointer. Create on parent with DBC(SqliteNetworkConfigMaster &).
*/
class DBC : NonCopyable
{
public:
DBC(SqliteNetworkConfigMaster &nc) : _p(&nc) { nc._lock.lock(); }
~DBC() { _p->_lock.unlock(); }
inline sqlite3 *operator*() { return _p->_db; }
private:
SqliteNetworkConfigMaster *const _p;
};
};
} // namespace ZeroTier