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-- This source is licensed under the Sunset License v1.0
with
Interfaces.C.Strings;
package body SQLite3 is
procedure Finalize
(This : in out SQLite3_DB) is
begin
This.Close;
end Finalize;
procedure Finalize
(This : in out SQLite3_Statement) is
begin
This.Finish;
end Finalize;
procedure Open
(Handle : out SQLite3_DB;
Filename : in String)
is
function sqlite3_open
(Filename : in Interfaces.C.char_array;
DB_Handle : access DB_Private_Access)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_open (Interfaces.C.To_C (Filename), Handle.Ptr'Access);
Handle.Prep := True;
if Status_Code (Code) /= SQLITE_OK then
raise Program_Error with Error_Message (Handle);
end if;
end Open;
procedure Open
(Handle : out SQLite3_DB;
Filename : in String;
Flags : in Open_Flag)
is
function sqlite3_open_v2
(Filename : in Interfaces.C.char_array;
DB_Handle : access DB_Private_Access;
Flags : in Interfaces.C.int;
VFS : in Interfaces.C.char_array)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_open_v2
(Interfaces.C.To_C (Filename),
Handle.Ptr'Access,
Interfaces.C.int (Flags),
Interfaces.C.To_C (""));
Handle.Prep := True;
if Status_Code (Code) /= SQLITE_OK then
raise Program_Error with Error_Message (Handle);
end if;
end Open;
procedure Close
(Handle : in out SQLite3_DB)
is
function sqlite3_close
(DB_Handle : in DB_Private_Access)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
if Handle.Prep = False then
return;
end if;
Code := sqlite3_close (Handle.Ptr);
Handle.Prep := False;
if Status_Code (Code) /= SQLITE_OK then
raise Program_Error with Error_Message (Handle);
end if;
end Close;
procedure Prepare
(Handle : in SQLite3_DB;
SQL : in String;
SQL_Handle : out SQLite3_Statement'Class)
is
type Chars_Ptr_Ptr is access all Interfaces.C.Strings.chars_ptr;
-- int sqlite3_prepare_v2(
-- sqlite3 *db, /* Database handle */
-- const char *zSql, /* SQL statement, UTF-8 encoded */
-- int nByte, /* Maximum length of zSql in bytes. */
-- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
-- const char **pzTail /* OUT: Pointer to unused portion of zSql */
-- );
function sqlite3_prepare_v2
(DB_Handle : in DB_Private_Access;
zSql : in Interfaces.C.char_array;
nByte : in Interfaces.C.int;
ppStmt : access Statement_Private_Access;
pzTail : in Chars_Ptr_Ptr)
return Interfaces.C.int
with Import => True, Convention => C;
SQL_Str : Interfaces.C.char_array := Interfaces.C.To_C (SQL);
Code : Interfaces.C.int;
begin
Code := sqlite3_prepare_v2
(DB_Handle => Handle.Ptr,
zSql => SQL_Str,
nByte => SQL_Str'Length,
ppStmt => SQL_Handle.Ptr'Access,
pzTail => null);
SQL_Handle.Prep := True;
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_Message (Handle);
end if;
end Prepare;
procedure Prepare
(Handle : in SQLite3_DB;
SQL : in String;
Flags : in Prepare_Flag;
SQL_Handle : out SQLite3_Statement'Class)
is
type Chars_Ptr_Ptr is access all Interfaces.C.Strings.chars_ptr;
-- int sqlite3_prepare_v3(
-- sqlite3 *db, /* Database handle */
-- const char *zSql, /* SQL statement, UTF-8 encoded */
-- int nByte, /* Maximum length of zSql in bytes. */
-- unsigned int prepFlags /* Zero or more SQLITE_PREPARE_ flags */
-- sqlite3_stmt **ppStmt, /* OUT: Statement handle */
-- const char **pzTail /* OUT: Pointer to unused portion of zSql */
-- );
function sqlite3_prepare_v2
(DB_Handle : in DB_Private_Access;
zSql : in Interfaces.C.char_array;
nByte : in Interfaces.C.int;
prepFlags : in Interfaces.C.unsigned;
ppStmt : access Statement_Private_Access;
pzTail : in Chars_Ptr_Ptr)
return Interfaces.C.int
with Import => True, Convention => C;
SQL_Str : Interfaces.C.char_array := Interfaces.C.To_C (SQL);
Code : Interfaces.C.int;
begin
Code := sqlite3_prepare_v2
(DB_Handle => Handle.Ptr,
zSql => SQL_Str,
nByte => SQL_Str'Length,
prepFlags => Interfaces.C.unsigned (Flags),
ppStmt => SQL_Handle.Ptr'Access,
pzTail => null);
SQL_Handle.Prep := True;
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_Message (Handle);
end if;
end Prepare;
procedure Step
(SQL_Handle : in out SQLite3_Statement)
is
-- int sqlite3_step(sqlite3_stmt*);
function sqlite3_step
(Stmt : in Statement_Private_Access)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_step (SQL_Handle.Ptr);
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK and
SQL_Handle.Status /= SQLITE_ROW and
SQL_Handle.Status /= SQLITE_DONE
then
raise Program_Error with Error_String (SQL_Handle.Status);
end if;
end Step;
function Status
(SQL_Handle : in SQLite3_Statement)
return Status_Code is
begin
return SQL_Handle.Status;
end Status;
procedure Finish
(SQL_Handle : in out SQLite3_Statement)
is
-- int sqlite3_finalize(sqlite3_stmt*);
function sqlite3_finalize
(Stmt : in Statement_Private_Access)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
if SQL_Handle.Prep = False then
return;
end if;
Code := sqlite3_finalize (SQL_Handle.Ptr);
SQL_Handle.Prep := False;
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_String (SQL_Handle.Status);
end if;
end Finish;
procedure Reset
(SQL_Handle : in out SQLite3_Statement)
is
-- int sqlite3_reset(sqlite3_stmt*);
function sqlite3_reset
(Stmt : in Statement_Private_Access)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_reset (SQL_Handle.Ptr);
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_String (SQL_Handle.Status);
end if;
end Reset;
procedure Bind
(SQL_Handle : in out SQLite3_Statement;
Index : in SQL_Parameter_Index;
Value : in Integer) is
begin
Bind (SQL_Handle, Index, Long_Integer (Value));
end Bind;
procedure Bind
(SQL_Handle : in out SQLite3_Statement;
Index : in SQL_Parameter_Index;
Value : in Long_Integer)
is
-- int sqlite3_bind_int(sqlite3_stmt*, int, int);
function sqlite3_bind_int
(Stmt : in Statement_Private_Access;
Index : in Interfaces.C.int;
Value : in Interfaces.C.int)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_bind_int
(Stmt => SQL_Handle.Ptr,
Index => Interfaces.C.int (Index),
Value => Interfaces.C.int (Value));
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_String (SQL_Handle.Status);
end if;
end Bind;
procedure Bind
(SQL_Handle : in out SQLite3_Statement;
Index : in SQL_Parameter_Index;
Value : in Ada.Strings.Unbounded.Unbounded_String)
is
use Ada.Strings.Unbounded;
-- int sqlite3_bind_text
-- (sqlite3_stmt*,
-- int,
-- const char*,
-- int,
-- void(*)(void*));
function sqlite3_bind_text
(Stmt : in Statement_Private_Access;
Index : in Interfaces.C.int;
Value : in Interfaces.C.char_array;
Bytes : in Interfaces.C.int;
Opt : in Interfaces.C.long)
return Interfaces.C.int
with Import => True, Convention => C;
Code : Interfaces.C.int;
begin
Code := sqlite3_bind_text
(Stmt => SQL_Handle.Ptr,
Index => Interfaces.C.int (Index),
Value => Interfaces.C.To_C (To_String (Value)),
Bytes => Interfaces.C.int (Length (Value)),
Opt => SQLITE_TRANSIENT);
SQL_Handle.Status := Status_Code (Code);
if SQL_Handle.Status /= SQLITE_OK then
raise Program_Error with Error_String (SQL_Handle.Status);
end if;
end Bind;
function Column
(SQL_Handle : in SQLite3_Statement;
Index : in SQL_Column_Index)
return Integer
is
-- int sqlite3_column_int(sqlite3_stmt*, int iCol);
function sqlite3_column_int
(Stmt : in Statement_Private_Access;
Index : in Interfaces.C.int)
return Interfaces.C.int
with Import => True, Convention => C;
Ret_Val : Interfaces.C.int;
begin
Ret_Val := sqlite3_column_int
(Stmt => SQL_Handle.Ptr,
Index => Interfaces.C.int (Index));
return Integer (Ret_Val);
end Column;
function Column
(SQL_Handle : in SQLite3_Statement;
Index : in SQL_Column_Index)
return Ada.Strings.Unbounded.Unbounded_String
is
use Ada.Strings.Unbounded;
use Interfaces;
use type Interfaces.C.Strings.chars_ptr;
-- const unsigned char *sqlite3_column_text(sqlite3_stmt*, int iCol);
function sqlite3_column_text
(Stmt : in Statement_Private_Access;
Index : in Interfaces.C.int)
return Interfaces.C.Strings.chars_ptr
with Import => True, Convention => C;
Ret_Val : Interfaces.C.Strings.chars_ptr;
begin
Ret_Val := sqlite3_column_text
(Stmt => SQL_Handle.Ptr,
Index => Interfaces.C.int (Index));
if Ret_Val = C.Strings.Null_Ptr then
return Null_Unbounded_String;
else
return To_Unbounded_String (C.To_Ada (C.Strings.Value (Ret_Val)));
end if;
end Column;
function Error_Message
(Handle : in SQLite3_DB)
return String
is
use Interfaces;
-- const char *sqlite3_errmsg(sqlite3*);
function sqlite3_errmsg
(DB_Handle : in DB_Private_Access)
return C.Strings.chars_ptr
with Import => True, Convention => C;
begin
return C.To_Ada (C.Strings.Value (sqlite3_errmsg (Handle.Ptr)));
end Error_Message;
function Error_String
(Status : in Status_Code)
return String
is
use Interfaces;
function sqlite3_errstr
(Code : in Interfaces.C.int)
return C.Strings.chars_ptr
with Import => True, Convention => C;
begin
return C.To_Ada (C.Strings.Value (sqlite3_errstr (Interfaces.C.int (Status))));
end Error_String;
end SQLite3;
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