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/*
** 2025-10-14
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
******************************************************************************
**
** Test the ability of run-time extension loading to use the
** very latest interfaces.
**
** Compile something like this:
**
** Linux: gcc -g -fPIC shared testloadext.c -o testloadext.so
**
** Mac: cc -g -fPIC -dynamiclib testloadext.c -o testloadext.dylib
**
** Win11: cl testloadext.c -link -dll -out:testloadext.dll
*/
#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
#include <assert.h>
#include <string.h>
/*
** Implementation of the set_errmsg(CODE,MSG) SQL function.
**
** Raise an error that has numeric code CODE and text message MSG
** using the sqlite3_set_errmsg() API.
*/
static void seterrmsgfunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
sqlite3 *db;
char *zRes;
int rc;
assert( argc==2 );
db = sqlite3_context_db_handle(context);
rc = sqlite3_set_errmsg(db,
sqlite3_value_int(argv[0]),
sqlite3_value_text(argv[1]));
zRes = sqlite3_mprintf("%d %d %s",
rc, sqlite3_errcode(db), sqlite3_errmsg(db));
sqlite3_result_text64(context, zRes, strlen(zRes),
SQLITE_TRANSIENT, SQLITE_UTF8);
sqlite3_free(zRes);
}
/*
** Implementation of the tempbuf_spill() SQL function.
**
** Return the value of SQLITE_DBSTATUS_TEMPBUF_SPILL.
*/
static void tempbuf_spill_func(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
sqlite3 *db;
sqlite3_int64 iHi = 0, iCur = 0;
int rc;
int bReset;
assert( argc==1 );
bReset = sqlite3_value_int(argv[0]);
db = sqlite3_context_db_handle(context);
(void)sqlite3_db_status64(db, SQLITE_DBSTATUS_TEMPBUF_SPILL,
&iCur, &iHi, bReset);
sqlite3_result_int64(context, iCur);
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int sqlite3_testloadext_init(
sqlite3 *db,
char **pzErrMsg,
const sqlite3_api_routines *pApi
){
int rc = SQLITE_OK;
SQLITE_EXTENSION_INIT2(pApi);
(void)pzErrMsg; /* Unused parameter */
rc = sqlite3_create_function(db, "set_errmsg", 2,
SQLITE_UTF8,
0, seterrmsgfunc, 0, 0);
if( rc ) return rc;
rc = sqlite3_create_function(db, "tempbuf_spill", 1,
SQLITE_UTF8,
0, tempbuf_spill_func, 0, 0);
if( rc ) return rc;
return SQLITE_OK;
}
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