internal static void CreateLocalDBInstance(string instance)
{
DemandLocalDBPermissions();
if (s_configurableInstances == null)
{
// load list of instances from configuration, mark them as not created
bool lockTaken = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
Monitor.Enter(s_configLock, ref lockTaken);
if (s_configurableInstances == null)
{
Dictionary <string, InstanceInfo> tempConfigurableInstances = new Dictionary <string, InstanceInfo>(StringComparer.OrdinalIgnoreCase);
object section = PrivilegedConfigurationManager.GetSection("system.data.localdb");
if (section != null) // if no section just skip creation
{
// validate section type
LocalDBConfigurationSection configSection = section as LocalDBConfigurationSection;
if (configSection == null)
{
throw CreateLocalDBException(errorMessage: Res.GetString("LocalDB_BadConfigSectionType"));
}
foreach (LocalDBInstanceElement confElement in configSection.LocalDbInstances)
{
Debug.Assert(confElement.Name != null && confElement.Version != null, "Both name and version should not be null");
tempConfigurableInstances.Add(confElement.Name.Trim(), new InstanceInfo(confElement.Version.Trim()));
}
}
else
{
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> No system.data.localdb section found in configuration");
}
s_configurableInstances = tempConfigurableInstances;
}
}
finally
{
if (lockTaken)
{
Monitor.Exit(s_configLock);
}
}
}
InstanceInfo instanceInfo = null;
if (!s_configurableInstances.TryGetValue(instance, out instanceInfo))
{
return; // instance name was not in the config
}
if (instanceInfo.created)
{
return; // instance has already been created
}
Debug.Assert(!instance.Contains("\0"), "Instance name should contain embedded nulls");
if (instanceInfo.version.Contains("\0"))
{
throw CreateLocalDBException(errorMessage: Res.GetString("LocalDB_InvalidVersion"), instance: instance);
}
// LocalDBCreateInstance is thread- and cross-process safe method, it is OK to call from two threads simultaneously
int hr = LocalDBCreateInstance(instanceInfo.version, instance, flags: 0);
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> Starting creation of instance %ls version %ls", instance, instanceInfo.version);
if (hr < 0)
{
throw CreateLocalDBException(errorMessage: Res.GetString("LocalDB_CreateFailed"), instance: instance, localDbError: hr);
}
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> Finished creation of instance %ls", instance);
instanceInfo.created = true; // mark instance as created
} // CreateLocalDbInstance
internal static void CreateLocalDBInstance(string instance)
{
if (s_configurableInstances == null)
{
bool lockTaken = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
Monitor.Enter(s_configLock, ref lockTaken);
if (s_configurableInstances == null)
{
Dictionary <string, InstanceInfo> dictionary = new Dictionary <string, InstanceInfo>(StringComparer.OrdinalIgnoreCase);
object obj2 = ConfigurationManager.GetSection("system.data.localdb");
if (obj2 != null)
{
LocalDBConfigurationSection section = obj2 as LocalDBConfigurationSection;
if (section == null)
{
throw CreateLocalDBException(Res.GetString("LocalDB_BadConfigSectionType"), null, 0, 0);
}
foreach (LocalDBInstanceElement element in section.LocalDbInstances)
{
dictionary.Add(element.Name.Trim(), new InstanceInfo(element.Version.Trim()));
}
}
else
{
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> No system.data.localdb section found in configuration");
}
s_configurableInstances = dictionary;
}
}
finally
{
if (lockTaken)
{
Monitor.Exit(s_configLock);
}
}
}
InstanceInfo info = null;
if (s_configurableInstances.TryGetValue(instance, out info) && !info.created)
{
if (info.version.Contains("\0"))
{
string errorMessage = Res.GetString("LocalDB_InvalidVersion");
string str3 = instance;
throw CreateLocalDBException(errorMessage, str3, 0, 0);
}
uint flags = 0;
int num = LocalDBCreateInstance(info.version, instance, flags);
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> Starting creation of instance %ls version %ls", instance, info.version);
if (num < 0)
{
string str2 = Res.GetString("LocalDB_CreateFailed");
string str = instance;
int localDbError = num;
throw CreateLocalDBException(str2, str, localDbError, 0);
}
Bid.Trace("<sc.LocalDBAPI.CreateLocalDBInstance> Finished creation of instance %ls", instance);
info.created = true;
}
}