Add db and types

db.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+type DB struct {
+	path      string
+	readConn  *sql.DB
+	writeConn *sql.DB
+}
+
+func (db *DB) Open() error {
+	if db.path == "" {
+		return fmt.Errorf("database path not set")
+	}
+
+	writeConn, err := sql.Open("sqlite3", db.path+"?_journal=WAL&_synchronous=NORMAL")
+	if err != nil {
+		Error.Printf("%++v", err)
+		return err
+	}
+	writeConn.SetMaxOpenConns(1)
+	writeConn.SetConnMaxIdleTime(30 * time.Second)
+	writeConn.SetConnMaxLifetime(30 * time.Second)
+	db.writeConn = writeConn
+
+	readConn, err := sql.Open("sqlite3", db.path+"?mode=ro&_journal=WAL&_synchronous=NORMAL&_mode=ro")
+	if err != nil {
+		Error.Printf("%++v", err)
+		return err
+	}
+	readConn.SetMaxOpenConns(4)
+	readConn.SetConnMaxIdleTime(30 * time.Second)
+	readConn.SetConnMaxLifetime(30 * time.Second)
+	db.readConn = readConn
+
+	return nil
+}
+
+func (db *DB) Close() error {
+	err := db.writeConn.Close()
+	if err != nil {
+		return err
+	}
+
+	err = db.readConn.Close()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}