只使用lru

gorm.go

@@ -35,7 +35,9 @@ type Config struct {
 	// PrepareStmt executes the given query in cached statement
 	PrepareStmt bool
 	// PrepareStmt cache support LRU expired
-	PrepareStmtLruConfig *PrepareStmtLruConfig
+	PrepareStmtMaxSize int
+	PrepareStmtTTL     time.Duration
+
 	// DisableAutomaticPing
 	DisableAutomaticPing bool
 	// DisableForeignKeyConstraintWhenMigrating
@@ -204,7 +206,7 @@ func Open(dialector Dialector, opts ...Option) (db *DB, err error) {
 	}
 
 	if config.PrepareStmt {
-		preparedStmt := NewPreparedStmtDB(db.ConnPool, config.PrepareStmtLruConfig)
+		preparedStmt := NewPreparedStmtDB(db.ConnPool, config.PrepareStmtMaxSize, config.PrepareStmtTTL)
 		db.cacheStore.Store(preparedStmtDBKey, preparedStmt)
 		db.ConnPool = preparedStmt
 	}
@@ -275,7 +277,7 @@ func (db *DB) Session(config *Session) *DB {
 		if v, ok := db.cacheStore.Load(preparedStmtDBKey); ok {
 			preparedStmt = v.(*PreparedStmtDB)
 		} else {
-			preparedStmt = NewPreparedStmtDB(db.ConnPool, db.Config.PrepareStmtLruConfig)
+			preparedStmt = NewPreparedStmtDB(db.ConnPool, db.Config.PrepareStmtMaxSize, db.Config.PrepareStmtTTL)
 			db.cacheStore.Store(preparedStmtDBKey, preparedStmt)
 		}
 

internal/lru/lru.go

@@ -1,4 +1,4 @@
-package gorm
+package lru
 
 // golang -lru
 //https://github.com/hashicorp/golang-lru

internal/store/stmt_store.go

@@ -0,0 +1,84 @@
+package store
+
+import (
+	"fmt"
+	"gorm.io/gorm"
+	"gorm.io/gorm/internal/lru"
+	"time"
+)
+
+type StmtStore interface {
+	Get(key string) (*gorm.Stmt, bool)
+	Set(key string, value *gorm.Stmt)
+	Delete(key string)
+	AllMap() map[string]*gorm.Stmt
+}
+
+/*
+	type DefaultStmtStore struct {
+		defaultStmt map[string]*gorm.Stmt
+	}
+
+	func (s *DefaultStmtStore) Init() *DefaultStmtStore {
+		s.defaultStmt = make(map[string]*gorm.Stmt)
+		return s
+	}
+
+	func (s *DefaultStmtStore) AllMap() map[string]*gorm.Stmt {
+		return s.defaultStmt
+	}
+
+	func (s *DefaultStmtStore) Get(key string) (*gorm.Stmt, bool) {
+		stmt, ok := s.defaultStmt[key]
+		return stmt, ok
+	}
+
+	func (s *DefaultStmtStore) Set(key string, value *gorm.Stmt) {
+		s.defaultStmt[key] = value
+	}
+
+	func (s *DefaultStmtStore) Delete(key string) {
+		delete(s.defaultStmt, key)
+	}
+*/
+type LruStmtStore struct {
+	lru *lru.LRU[string, *gorm.Stmt]
+}
+
+func (s *LruStmtStore) NewLru(size int, ttl time.Duration) {
+	onEvicted := func(k string, v *gorm.Stmt) {
+		if v != nil {
+			go func() {
+				defer func() {
+					if r := recover(); r != nil {
+						fmt.Print("close stmt err panic ")
+					}
+				}()
+				if v != nil {
+					err := v.Close()
+					if err != nil {
+						//
+						fmt.Print("close stmt err: ", err.Error())
+					}
+				}
+			}()
+		}
+	}
+	s.lru = lru.NewLRU[string, *gorm.Stmt](size, onEvicted, ttl)
+}
+
+func (s *LruStmtStore) AllMap() map[string]*gorm.Stmt {
+	return s.lru.KeyValues()
+}
+func (s *LruStmtStore) Get(key string) (*gorm.Stmt, bool) {
+	stmt, ok := s.lru.Get(key)
+	return stmt, ok
+}
+
+func (s *LruStmtStore) Set(key string, value *gorm.Stmt) {
+	s.lru.Add(key, value)
+}
+
+func (s *LruStmtStore) Delete(key string) {
+	s.lru.Remove(key)
+}

prepare_stmt.go

@@ -5,7 +5,7 @@ import (
 	"database/sql"
 	"database/sql/driver"
 	"errors"
-	"fmt"
+	"gorm.io/gorm/internal/store"
 	"reflect"
 	"sync"
 	"time"
@@ -19,30 +19,51 @@ type Stmt struct {
 }
 
 type PreparedStmtDB struct {
-	Stmts StmtStore
+	Stmts store.StmtStore
 	Mux   *sync.RWMutex
 	ConnPool
 }
 
-func newPrepareStmtCache(prepareStmtLruConfig *PrepareStmtLruConfig) *StmtStore {
-	var stmts StmtStore
-	if prepareStmtLruConfig != nil && prepareStmtLruConfig.Open {
-		if prepareStmtLruConfig.Size <= 0 {
-			panic("LRU prepareStmtLruConfig.Size must > 0")
+const DEFAULT_MAX_SIZE = (1 << 63) - 1
+const DEFAULT_TTL = time.Hour * 24
+
+// newPrepareStmtCache creates a new statement cache with the specified maximum size and time-to-live (TTL).
+// Parameters:
+//   - PrepareStmtMaxSize: An integer specifying the maximum number of prepared statements to cache.
+//     If this value is less than or equal to 0, the function will panic.
+//   - PrepareStmtTTL: A time.Duration specifying the TTL for cached statements.
+//     If this value differs from the default TTL, it will be used instead.
+//
+// Returns:
+//   - A pointer to a store.StmtStore instance configured with the provided parameters.
+//
+// The function initializes an LRU (Least Recently Used) cache for prepared statements,
+// using either the provided size and TTL or default values
+func newPrepareStmtCache(PrepareStmtMaxSize int,
+	PrepareStmtTTL time.Duration) *store.StmtStore {
+	var lru_size = DEFAULT_MAX_SIZE
+	var lru_ttl = DEFAULT_TTL
+	var stmts store.StmtStore
+	if PrepareStmtMaxSize <= 0 {
+		panic("PrepareStmtMaxSize must > 0")
 	}
-		lru := &LruStmtStore{}
-		lru.NewLru(prepareStmtLruConfig.Size, prepareStmtLruConfig.TTL)
+	if PrepareStmtMaxSize != 0 {
+		lru_size = PrepareStmtMaxSize
+	}
+	if PrepareStmtTTL != DEFAULT_TTL {
+		lru_ttl = PrepareStmtTTL
+	}
+	lru := &store.LruStmtStore{}
+	lru.NewLru(lru_size, lru_ttl)
 	stmts = lru
-	} else {
-		defaultStmtStore := &DefaultStmtStore{}
-		stmts = defaultStmtStore.init()
-	}
 	return &stmts
 }
-func NewPreparedStmtDB(connPool ConnPool, prepareStmtLruConfig *PrepareStmtLruConfig) *PreparedStmtDB {
+func NewPreparedStmtDB(connPool ConnPool, PrepareStmtMaxSize int,
+	PrepareStmtTTL time.Duration) *PreparedStmtDB {
 	return &PreparedStmtDB{
 		ConnPool: connPool,
-		Stmts:    *newPrepareStmtCache(prepareStmtLruConfig),
+		Stmts: *newPrepareStmtCache(PrepareStmtMaxSize,
+			PrepareStmtTTL),
 		Mux: &sync.RWMutex{},
 	}
 }
@@ -94,9 +115,8 @@ func (sdb *PreparedStmtDB) Reset() {
 			}
 		}(stmt)
 	}
-	defaultStmt := &DefaultStmtStore{}
-	defaultStmt.init()
-	sdb.Stmts = defaultStmt
+	defaultStmt := newPrepareStmtCache(0, 0)
+	sdb.Stmts = *defaultStmt
 }
 
 func (db *PreparedStmtDB) prepare(ctx context.Context, conn ConnPool, isTransaction bool, query string) (Stmt, error) {
@@ -303,77 +323,3 @@ func (tx *PreparedStmtTX) Ping() error {
 	}
 	return conn.Ping()
 }
-
-type StmtStore interface {
-	Get(key string) (*Stmt, bool)
-	Set(key string, value *Stmt)
-	Delete(key string)
-	AllMap() map[string]*Stmt
-}
-
-type DefaultStmtStore struct {
-	defaultStmt map[string]*Stmt
-}
-
-func (s *DefaultStmtStore) init() *DefaultStmtStore {
-	s.defaultStmt = make(map[string]*Stmt)
-	return s
-}
-
-func (s *DefaultStmtStore) AllMap() map[string]*Stmt {
-	return s.defaultStmt
-}
-func (s *DefaultStmtStore) Get(key string) (*Stmt, bool) {
-	stmt, ok := s.defaultStmt[key]
-	return stmt, ok
-}
-
-func (s *DefaultStmtStore) Set(key string, value *Stmt) {
-	s.defaultStmt[key] = value
-}
-
-func (s *DefaultStmtStore) Delete(key string) {
-	delete(s.defaultStmt, key)
-}
-
-type LruStmtStore struct {
-	lru *LRU[string, *Stmt]
-}
-
-func (s *LruStmtStore) NewLru(size int, ttl time.Duration) {
-	onEvicted := func(k string, v *Stmt) {
-		if v != nil {
-			go func() {
-				defer func() {
-					if r := recover(); r != nil {
-						fmt.Print("close stmt err panic ")
-					}
-				}()
-				if v != nil {
-					err := v.Close()
-					if err != nil {
-						//
-						fmt.Print("close stmt err: ", err.Error())
-					}
-				}
-			}()
-		}
-	}
-	s.lru = NewLRU[string, *Stmt](size, onEvicted, ttl)
-}
-
-func (s *LruStmtStore) AllMap() map[string]*Stmt {
-	return s.lru.KeyValues()
-}
-func (s *LruStmtStore) Get(key string) (*Stmt, bool) {
-	stmt, ok := s.lru.Get(key)
-	return stmt, ok
-}
-
-func (s *LruStmtStore) Set(key string, value *Stmt) {
-	s.lru.Add(key, value)
-}
-
-func (s *LruStmtStore) Delete(key string) {
-	s.lru.Remove(key)
-}