Initial commit (code only without large binaries)

EdgeNode/internal/caches/storage_interface.go

@@ -0,0 +1,61 @@
+package caches
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+)
+
+// StorageInterface 缓存存储接口
+type StorageInterface interface {
+	// Init 初始化
+	Init() error
+
+	// OpenReader 读取缓存
+	OpenReader(key string, useStale bool, isPartial bool) (reader Reader, err error)
+
+	// OpenWriter 打开缓存写入器等待写入
+	// size 和 maxSize 可能为-1
+	OpenWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64, maxSize int64, isPartial bool) (Writer, error)
+
+	// OpenFlushWriter 打开从其他媒介直接刷入的写入器
+	OpenFlushWriter(key string, expiresAt int64, status int, headerSize int, bodySize int64) (Writer, error)
+
+	// Delete 删除某个键值对应的缓存
+	Delete(key string) error
+
+	// Stat 统计缓存
+	Stat() (*Stat, error)
+
+	// TotalDiskSize 消耗的磁盘尺寸
+	TotalDiskSize() int64
+
+	// TotalMemorySize 内存尺寸
+	TotalMemorySize() int64
+
+	// CleanAll 清除所有缓存
+	CleanAll() error
+
+	// Purge 批量删除缓存
+	// urlType 值为file|dir
+	Purge(keys []string, urlType string) error
+
+	// Stop 停止缓存策略
+	Stop()
+
+	// Policy 获取当前存储的Policy
+	Policy() *serverconfigs.HTTPCachePolicy
+
+	// UpdatePolicy 修改策略
+	UpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy)
+
+	// CanUpdatePolicy 检查策略是否可以更新
+	CanUpdatePolicy(newPolicy *serverconfigs.HTTPCachePolicy) bool
+
+	// AddToList 将缓存添加到列表
+	AddToList(item *Item)
+
+	// IgnoreKey 忽略某个Key，即不缓存某个Key
+	IgnoreKey(key string, maxSize int64)
+
+	// CanSendfile 是否支持Sendfile
+	CanSendfile() bool
+}