internal override void GetIndexColumnExtendedInfo(string database, string index, string column, out int sortMode, out int onError, out string collationSequence)
{
IntPtr ptr;
int num;
int errorCode = UnsafeNativeMethods.sqlite3_index_column_info_interop((IntPtr)this._sql, SQLiteConvert.ToUTF8(database), SQLiteConvert.ToUTF8(index), SQLiteConvert.ToUTF8(column), out sortMode, out onError, out ptr, out num);
if (errorCode != 0)
{
throw new SQLiteException(errorCode, "");
}
collationSequence = SQLiteConvert.UTF8ToString(ptr, num);
}
internal override CollationSequence GetCollationSequence(SQLiteFunction func, IntPtr context)
{
int num;
int num2;
int num3;
CollationSequence sequence = new CollationSequence();
IntPtr nativestring = UnsafeNativeMethods.sqlite3_context_collseq(context, out num2, out num3, out num);
sequence.Name = SQLiteConvert.UTF8ToString(nativestring, num);
sequence.Type = (CollationTypeEnum)num2;
sequence._func = func;
sequence.Encoding = (CollationEncodingEnum)num3;
return(sequence);
}
internal override string ColumnType(SQLiteStatement stmt, int index, out TypeAffinity nAffinity)
{
int num;
IntPtr nativestring = UnsafeNativeMethods.sqlite3_column_decltype_interop((IntPtr)stmt._sqlite_stmt, index, out num);
nAffinity = this.ColumnAffinity(stmt, index);
if (nativestring != IntPtr.Zero)
{
return(SQLiteConvert.UTF8ToString(nativestring, num));
}
string[] typeDefinitions = stmt.TypeDefinitions;
if (((typeDefinitions != null) && (index < typeDefinitions.Length)) && (typeDefinitions[index] != null))
{
return(typeDefinitions[index]);
}
return(string.Empty);
}
internal override void ColumnMetaData(string dataBase, string table, string column, out string dataType, out string collateSequence, out bool notNull, out bool primaryKey, out bool autoIncrement)
{
IntPtr ptr;
IntPtr ptr2;
int num;
int num2;
int num3;
int num5;
int num6;
int errorCode = UnsafeNativeMethods.sqlite3_table_column_metadata_interop((IntPtr)this._sql, SQLiteConvert.ToUTF8(dataBase), SQLiteConvert.ToUTF8(table), SQLiteConvert.ToUTF8(column), out ptr, out ptr2, out num, out num2, out num3, out num5, out num6);
if (errorCode > 0)
{
throw new SQLiteException(errorCode, this.SQLiteLastError());
}
dataType = SQLiteConvert.UTF8ToString(ptr, num5);
collateSequence = SQLiteConvert.UTF8ToString(ptr2, num6);
notNull = num == 1;
primaryKey = num2 == 1;
autoIncrement = num3 == 1;
}
internal static string SQLiteLastError(SQLiteConnectionHandle db)
{
int num;
return(SQLiteConvert.UTF8ToString(UnsafeNativeMethods.sqlite3_errmsg_interop((IntPtr)db, out num), num));
}
internal override SQLiteStatement Prepare(SQLiteConnection cnn, string strSql, SQLiteStatement previous, uint timeoutMS, out string strRemain)
{
SQLiteStatement statement2;
IntPtr zero = IntPtr.Zero;
IntPtr ptrRemain = IntPtr.Zero;
int nRemain = 0;
int errorCode = 0x11;
int num3 = 0;
byte[] buffer = SQLiteConvert.ToUTF8(strSql);
string typedefs = null;
SQLiteStatement statement = null;
Random random = null;
uint tickCount = (uint)Environment.TickCount;
GCHandle handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
IntPtr pSql = handle.AddrOfPinnedObject();
try
{
while ((((errorCode == 0x11) || (errorCode == 6)) || (errorCode == 5)) && (num3 < 3))
{
errorCode = UnsafeNativeMethods.sqlite3_prepare_interop((IntPtr)this._sql, pSql, buffer.Length - 1, out zero, out ptrRemain, out nRemain);
if (errorCode == 0x11)
{
num3++;
}
else
{
if (errorCode == 1)
{
if (string.Compare(this.SQLiteLastError(), "near \"TYPES\": syntax error", StringComparison.OrdinalIgnoreCase) == 0)
{
int index = strSql.IndexOf(';');
if (index == -1)
{
index = strSql.Length - 1;
}
typedefs = strSql.Substring(0, index + 1);
strSql = strSql.Substring(index + 1);
strRemain = "";
while ((statement == null) && (strSql.Length > 0))
{
statement = this.Prepare(cnn, strSql, previous, timeoutMS, out strRemain);
strSql = strRemain;
}
if (statement != null)
{
statement.SetTypes(typedefs);
}
return(statement);
}
if (this._buildingSchema || (string.Compare(this.SQLiteLastError(), 0, "no such table: TEMP.SCHEMA", 0, 0x1a, StringComparison.OrdinalIgnoreCase) != 0))
{
continue;
}
strRemain = "";
this._buildingSchema = true;
try
{
ISQLiteSchemaExtensions service = ((IServiceProvider)SQLiteFactory.Instance).GetService(typeof(ISQLiteSchemaExtensions)) as ISQLiteSchemaExtensions;
if (service != null)
{
service.BuildTempSchema(cnn);
}
while ((statement == null) && (strSql.Length > 0))
{
statement = this.Prepare(cnn, strSql, previous, timeoutMS, out strRemain);
strSql = strRemain;
}
return(statement);
}
finally
{
this._buildingSchema = false;
}
}
switch (errorCode)
{
case 6:
case 5:
if (random == null)
{
random = new Random();
}
if ((Environment.TickCount - tickCount) > timeoutMS)
{
throw new SQLiteException(errorCode, this.SQLiteLastError());
}
Thread.Sleep(random.Next(1, 150));
break;
}
}
}
if (errorCode > 0)
{
throw new SQLiteException(errorCode, this.SQLiteLastError());
}
strRemain = SQLiteConvert.UTF8ToString(ptrRemain, nRemain);
if (zero != IntPtr.Zero)
{
statement = new SQLiteStatement(this, zero, strSql.Substring(0, strSql.Length - strRemain.Length), previous);
}
statement2 = statement;
}
finally
{
handle.Free();
}
return(statement2);
}
internal override string GetText(SQLiteStatement stmt, int index)
{
int num;
return(SQLiteConvert.UTF8ToString(UnsafeNativeMethods.sqlite3_column_text_interop((IntPtr)stmt._sqlite_stmt, index, out num), num));
}
internal override string GetParamValueText(IntPtr ptr)
{
int num;
return(SQLiteConvert.UTF8ToString(UnsafeNativeMethods.sqlite3_value_text_interop(ptr, out num), num));
}
internal override string ColumnOriginalName(SQLiteStatement stmt, int index)
{
int num;
return(SQLiteConvert.UTF8ToString(UnsafeNativeMethods.sqlite3_column_origin_name_interop((IntPtr)stmt._sqlite_stmt, index, out num), num));
}
internal override string Bind_ParamName(SQLiteStatement stmt, int index)
{
int num;
return(SQLiteConvert.UTF8ToString(UnsafeNativeMethods.sqlite3_bind_parameter_name_interop((IntPtr)stmt._sqlite_stmt, index, out num), num));
}