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🚤 Improve sql storage

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This commit is contained in:
kiyon
2020-11-06 09:56:34 +08:00
parent 4ac8cc184b
commit 25ec0e291e
6 changed files with 45 additions and 12 deletions
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14
mysql/mysql.go
View File

@@ -14,6 +14,7 @@ import (
type Storage struct {
db *sql.DB
gcInterval time.Duration
done chan struct{}
sqlSelect string
sqlInsert string
@@ -80,6 +81,7 @@ func New(config ...Config) *Storage {
store := &Storage{
gcInterval: cfg.GCInterval,
db: db,
done: make(chan struct{}),
sqlSelect: fmt.Sprintf("SELECT v, e FROM %s WHERE k=?;", cfg.Table),
sqlInsert: fmt.Sprintf("INSERT INTO %s (k, v, e) VALUES (?,?,?) ON DUPLICATE KEY UPDATE v = ?, e = ?", cfg.Table),
sqlDelete: fmt.Sprintf("DELETE FROM %s WHERE k=?", cfg.Table),
@@ -150,16 +152,20 @@ func (s *Storage) Reset() error {
// Close the database
func (s *Storage) Close() error {
s.done <- struct{}{}
return s.db.Close()
}
// Garbage collector to delete expired keys
func (s *Storage) gc() {
tick := time.NewTicker(s.gcInterval)
ticker := time.NewTicker(s.gcInterval)
defer ticker.Stop()
for {
<-tick.C
if _, err := s.db.Exec(s.sqlGC); err != nil {
panic(err)
select {
case <-s.done:
return
case t := <-ticker.C:
_, _ = s.db.Exec(s.sqlGC, t.Unix())
}
}
}

5
mysql/mysql_test.go
View File

@@ -121,3 +121,8 @@ func Test_MYSQL_Clear(t *testing.T) {
utils.AssertEqual(t, ErrNotExist, err)
utils.AssertEqual(t, true, len(result) == 0)
}
func Test_Mysql_Close(t *testing.T) {
err := testStore.Close()
utils.AssertEqual(t, nil, err)
}

14
postgres/postgres.go
View File

@@ -15,6 +15,7 @@ import (
type Storage struct {
db *sql.DB
gcInterval time.Duration
done chan struct{}
sqlSelect string
sqlInsert string
@@ -97,6 +98,7 @@ func New(config ...Config) *Storage {
store := &Storage{
db: db,
gcInterval: cfg.GCInterval,
done: make(chan struct{}),
sqlSelect: fmt.Sprintf(`SELECT v, e FROM %s WHERE k=$1;`, cfg.Table),
sqlInsert: fmt.Sprintf("INSERT INTO %s (k, v, e) VALUES ($1, $2, $3) ON CONFLICT (k) DO UPDATE SET v = $4, e = $5", cfg.Table),
sqlDelete: fmt.Sprintf("DELETE FROM %s WHERE k=$1", cfg.Table),
@@ -164,16 +166,20 @@ func (s *Storage) Reset() error {
// Close the database
func (s *Storage) Close() error {
s.done <- struct{}{}
return s.db.Close()
}
// GC deletes all expired entries
func (s *Storage) gc() {
tick := time.NewTicker(s.gcInterval)
ticker := time.NewTicker(s.gcInterval)
defer ticker.Stop()
for {
<-tick.C
if _, err := s.db.Exec(s.sqlGC); err != nil {
panic(err)
select {
case <-s.done:
return
case t := <-ticker.C:
_, _ = s.db.Exec(s.sqlGC, t.Unix())
}
}
}

5
postgres/postgres_test.go
View File

@@ -121,3 +121,8 @@ func Test_Postgres_Clear(t *testing.T) {
utils.AssertEqual(t, ErrNotExist, err)
utils.AssertEqual(t, true, len(result) == 0)
}
func Test_Postgres_Close(t *testing.T) {
err := testStore.Close()
utils.AssertEqual(t, nil, err)
}

14
sqlite3/sqlite3.go
View File

@@ -15,6 +15,7 @@ import (
type Storage struct {
db *sql.DB
gcInterval time.Duration
done chan struct{}
sqlSelect string
sqlInsert string
@@ -80,6 +81,7 @@ func New(config ...Config) *Storage {
store := &Storage{
db: db,
gcInterval: cfg.GCInterval,
done: make(chan struct{}),
sqlSelect: fmt.Sprintf(`SELECT v, e FROM %s WHERE k=?;`, cfg.Table),
sqlInsert: fmt.Sprintf("INSERT OR REPLACE INTO %s (k, v, e) VALUES (?,?,?)", cfg.Table),
sqlDelete: fmt.Sprintf("DELETE FROM %s WHERE k=?", cfg.Table),
@@ -143,16 +145,20 @@ func (s *Storage) Reset() error {
// Close the database
func (s *Storage) Close() error {
s.done <- struct{}{}
return s.db.Close()
}
// GC deletes all expired entries
func (s *Storage) gc() {
tick := time.NewTicker(s.gcInterval)
ticker := time.NewTicker(s.gcInterval)
defer ticker.Stop()
for {
<-tick.C
if _, err := s.db.Exec(s.sqlGC); err != nil {
panic(err)
select {
case <-s.done:
return
case t := <-ticker.C:
_, _ = s.db.Exec(s.sqlGC, t.Unix())
}
}
}

5
sqlite3/sqlite3_test.go
View File

@@ -118,3 +118,8 @@ func Test_SQLite3_Clear(t *testing.T) {
utils.AssertEqual(t, ErrNotExist, err)
utils.AssertEqual(t, true, len(result) == 0)
}
func Test_SQLite3_Close(t *testing.T) {
err := testStore.Close()
utils.AssertEqual(t, nil, err)
}