SQLite

** on how SQLite interfaces are suppose to operate.
**
** The name of this file under configuration management is "sqlite.h.in".
** The makefile makes some minor changes to this file (such as inserting
** the version number) and changes its name to "sqlite3.h" as
** part of the build process.
**
** @(#) $Id: sqlite.h.in,v 1.351 2008/06/22 10:21:27 mihailim Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.

);

/*
** CAPI3REF: Load An Extension {F12600}
**
** This interface loads an SQLite extension library from the named file.
**
** INVARIANTS:
**
** {F12601} The sqlite3_load_extension() interface attempts to load an
**          SQLite extension library contained in the file zFile.
**
** {F12602} The entry point is zProc.
**
** {F12603} zProc may be 0, in which case the name of the entry point
**          defaults to "sqlite3_extension_init".
**
** {F12604} The sqlite3_load_extension() interface shall return
**          [SQLITE_OK] on success and [SQLITE_ERROR] if something goes wrong.
**
** {F12605} If an error occurs and pzErrMsg is not 0, then the
**          sqlite3_load_extension() interface shall attempt to fill
**          *pzErrMsg with error message text stored in memory obtained
**          from [sqlite3_malloc()]. {END} The calling function should free
**          this memory by calling [sqlite3_free()].

** {F12606} Extension loading must be enabled using
**          [sqlite3_enable_load_extension()] prior to calling this API,
**          otherwise an error will be returned.
*/
int sqlite3_load_extension(
  sqlite3 *db,          /* Load the extension into this database connection */
  const char *zFile,    /* Name of the shared library containing extension */

** So as not to open security holes in older applications that are
** unprepared to deal with extension loading, and as a means of disabling
** extension loading while evaluating user-entered SQL, the following API
** is provided to turn the [sqlite3_load_extension()] mechanism on and off.
**
** Extension loading is off by default. See ticket #1863.
**
** INVARIANTS:
**
** {F12621} Call the sqlite3_enable_load_extension() routine with onoff==1
**          to turn extension loading on and call it with onoff==0 to turn
**          it back off again.
**
** {F12622} Extension loading is off by default.
*/
int sqlite3_enable_load_extension(sqlite3 *db, int onoff);

** obtained from [sqlite3_malloc()].  If you run a memory leak checker
** on your program and it reports a leak because of this array, invoke
** [sqlite3_reset_auto_extension()] prior to shutdown to free the memory.
**
** This interface is experimental and is subject to change or
** removal in future releases of SQLite.
**
** INVARIANTS:
**
** {F12641} This function registers an extension entry point that is
**          automatically invoked whenever a new [database connection]
**          is opened using [sqlite3_open()], [sqlite3_open16()],
**          or [sqlite3_open_v2()].
**
** {F12642} Duplicate extensions are detected so calling this routine
**          multiple times with the same extension is harmless.

** This function disables all previously registered automatic
** extensions. {END}  It undoes the effect of all prior
** [sqlite3_auto_extension()] calls.
**
** This interface is experimental and is subject to change or
** removal in future releases of SQLite.
**
** INVARIANTS:
**
** {F12661} This function disables all previously registered
**          automatic extensions.
**
** {F12662} This function disables automatic extensions in all threads.
*/
void sqlite3_reset_auto_extension(void);