go-sqlite3/driver/limit.go

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2018-06-19 18:53:53 +03:00
// Copyright (C) 2018 The Go-SQLite3 Authors.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build cgo
package sqlite3
/*
#ifndef USE_LIBSQLITE3
#include <sqlite3-binding.h>
#else
#include <sqlite3.h>
#endif
#include <stdlib.h>
#include <string.h>
#ifdef SQLITE_LIMIT_WORKER_THREADS
# define _SQLITE_HAS_LIMIT
# define SQLITE_LIMIT_LENGTH 0
# define SQLITE_LIMIT_SQL_LENGTH 1
# define SQLITE_LIMIT_COLUMN 2
# define SQLITE_LIMIT_EXPR_DEPTH 3
# define SQLITE_LIMIT_COMPOUND_SELECT 4
# define SQLITE_LIMIT_VDBE_OP 5
# define SQLITE_LIMIT_FUNCTION_ARG 6
# define SQLITE_LIMIT_ATTACHED 7
# define SQLITE_LIMIT_LIKE_PATTERN_LENGTH 8
# define SQLITE_LIMIT_VARIABLE_NUMBER 9
# define SQLITE_LIMIT_TRIGGER_DEPTH 10
# define SQLITE_LIMIT_WORKER_THREADS 11
# else
# define SQLITE_LIMIT_WORKER_THREADS 11
#endif
static int _sqlite3_limit(sqlite3* db, int limitId, int newLimit) {
#ifndef _SQLITE_HAS_LIMIT
return -1;
#else
return sqlite3_limit(db, limitId, newLimit);
#endif
}
*/
import "C"
// GetLimit returns the current value of a run-time limit.
// See: sqlite3_limit, http://www.sqlite.org/c3ref/limit.html
func (c *SQLiteConn) GetLimit(id int) int {
return int(C._sqlite3_limit(c.db, C.int(id), -1))
}
// SetLimit changes the value of a run-time limits.
// Then this method returns the prior value of the limit.
// See: sqlite3_limit, http://www.sqlite.org/c3ref/limit.html
func (c *SQLiteConn) SetLimit(id int, newVal int) int {
return int(C._sqlite3_limit(c.db, C.int(id), C.int(newVal)))
}