From e63d2546a03e8591c61871c4e494587cc28bdd79 Mon Sep 17 00:00:00 2001
From: mattn <mattn.jp@gmail.com>
Date: Fri, 14 Nov 2014 17:13:35 +0900
Subject: set/reset finalizer to free SQLite3 handles

---
 sqlite3.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'sqlite3.go')

diff --git a/sqlite3.go b/sqlite3.go
index abfc2fe..de1cc16 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -61,6 +61,7 @@ import (
 	"database/sql/driver"
 	"errors"
 	"io"
+	"runtime"
 	"strings"
 	"time"
 	"unsafe"
@@ -306,7 +307,7 @@ func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
 			return nil, err
 		}
 	}
-
+	runtime.SetFinalizer(conn, (*SQLiteConn).Close)
 	return conn, nil
 }
 
@@ -317,6 +318,7 @@ func (c *SQLiteConn) Close() error {
 		return c.lastError()
 	}
 	c.db = nil
+	runtime.SetFinalizer(c, nil)
 	return nil
 }
 
@@ -334,7 +336,9 @@ func (c *SQLiteConn) Prepare(query string) (driver.Stmt, error) {
 	if tail != nil && C.strlen(tail) > 0 {
 		t = strings.TrimSpace(C.GoString(tail))
 	}
-	return &SQLiteStmt{c: c, s: s, t: t}, nil
+	ss := &SQLiteStmt{c: c, s: s, t: t}
+	runtime.SetFinalizer(ss, (*SQLiteStmt).Close)
+	return ss, nil
 }
 
 // Close the statement.
@@ -350,6 +354,7 @@ func (s *SQLiteStmt) Close() error {
 	if rv != C.SQLITE_OK {
 		return s.c.lastError()
 	}
+	runtime.SetFinalizer(s, nil)
 	return nil
 }
 
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