void Lock::DBWrite::lockDB(const string& ns) {
fassert( 16253, !ns.empty() );
Acquiring a(this, *_lockState);
_locked_W=false;
_locked_w=false;
_weLocked=0;
massert(16186, "can't get a DBWrite while having a read lock", !_lockState->hasAnyReadLock());
if (_lockState->isW())
return;
StringData db = nsToDatabaseSubstring( ns );
Nestable nested = n(db);
if( nested == admin ) {
// we can't nestedly lock both admin and local as implemented. so lock_W.
qlk.lock_W(_lockState);
_locked_W = true;
return;
}
if( !nested )
lockOther(db);
lockTop();
if( nested )
lockNestable(nested);
}
void Lock::DBWrite::lockDB(const string& ns, const string &context) {
fassert( 16253, !ns.empty() );
LockState& ls = lockState();
Acquiring a(this,ls);
_locked_W=false;
_locked_w=false;
_weLocked=0;
massert( 16186 , "can't get a DBWrite while having a read lock" , ! ls.hasAnyReadLock() );
if( ls.isW() )
return;
if (DB_LEVEL_LOCKING_ENABLED) {
StringData db = nsToDatabaseSubstring( ns );
Nestable nested = n(db);
if( nested == admin ) {
// we can't nestedly lock both admin and local as implemented. so lock_W.
qlk.lock_W();
_locked_W = true;
return;
}
if( !nested )
lockOther(db, context);
lockTop(ls);
if( nested )
lockNestable(nested, context);
}
else {
qlk.lock_W();
_locked_w = true;
}
}
void Lock::DBRead::lockDB(const string& ns) {
fassert( 16254, !ns.empty() );
LockState& ls = lockState();
Acquiring a(this,ls);
_locked_r=false;
_weLocked=0;
if ( ls.isRW() )
return;
if (DB_LEVEL_LOCKING_ENABLED) {
char db[MaxDatabaseNameLen];
nsToDatabase(ns.data(), db);
Nestable nested = n(db);
if( !nested )
lockOther(db);
lockTop(ls);
if( nested )
lockNestable(nested);
}
else {
qlk.lock_R();
_locked_r = true;
}
}
void Lock::DBRead::lockDB(const string& ns) {
fassert( 16254, !ns.empty() );
Acquiring a(this, *_lockState);
_locked_r=false;
_weLocked=0;
if (_lockState->isRW())
return;
StringData db = nsToDatabaseSubstring(ns);
Nestable nested = n(db);
if( !nested )
lockOther(db);
lockTop();
if( nested )
lockNestable(nested);
}
void Lock::DBRead::lockDB(const string& ns, const string &context) {
fassert( 16254, !ns.empty() );
LockState& ls = lockState();
Acquiring a(this,ls);
_locked_r=false;
_weLocked=0;
if ( ls.isRW() )
return;
if (DB_LEVEL_LOCKING_ENABLED) {
StringData db = nsToDatabaseSubstring(ns);
Nestable nested = n(db);
if( !nested )
lockOther(db, context);
lockTop(ls);
if( nested )
lockNestable(nested, context);
}
else {
qlk.lock_R();
_locked_r = true;
}
}
