mirror of https://github.com/tidwall/redcon.git
88 lines
1.7 KiB
Go
88 lines
1.7 KiB
Go
package main
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import (
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"log"
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"sync"
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"github.com/tidwall/redcon"
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)
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type Handler struct {
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itemsMux sync.RWMutex
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items map[string][]byte
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}
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func NewHandler() *Handler {
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return &Handler{
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items: make(map[string][]byte),
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}
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}
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func (h *Handler) detach(conn redcon.Conn, cmd redcon.Command) {
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detachedConn := conn.Detach()
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log.Printf("connection has been detached")
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go func(c redcon.DetachedConn) {
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defer c.Close()
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c.WriteString("OK")
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c.Flush()
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}(detachedConn)
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}
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func (h *Handler) ping(conn redcon.Conn, cmd redcon.Command) {
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conn.WriteString("PONG")
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}
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func (h *Handler) quit(conn redcon.Conn, cmd redcon.Command) {
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conn.WriteString("OK")
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conn.Close()
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}
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func (h *Handler) set(conn redcon.Conn, cmd redcon.Command) {
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if len(cmd.Args) != 3 {
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conn.WriteError("ERR wrong number of arguments for '" + string(cmd.Args[0]) + "' command")
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return
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}
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h.itemsMux.Lock()
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h.items[string(cmd.Args[1])] = cmd.Args[2]
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h.itemsMux.Unlock()
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conn.WriteString("OK")
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}
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func (h *Handler) get(conn redcon.Conn, cmd redcon.Command) {
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if len(cmd.Args) != 2 {
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conn.WriteError("ERR wrong number of arguments for '" + string(cmd.Args[0]) + "' command")
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return
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}
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h.itemsMux.RLock()
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val, ok := h.items[string(cmd.Args[1])]
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h.itemsMux.RUnlock()
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if !ok {
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conn.WriteNull()
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} else {
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conn.WriteBulk(val)
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}
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}
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func (h *Handler) delete(conn redcon.Conn, cmd redcon.Command) {
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if len(cmd.Args) != 2 {
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conn.WriteError("ERR wrong number of arguments for '" + string(cmd.Args[0]) + "' command")
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return
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}
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h.itemsMux.Lock()
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_, ok := h.items[string(cmd.Args[1])]
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delete(h.items, string(cmd.Args[1]))
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h.itemsMux.Unlock()
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if !ok {
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conn.WriteInt(0)
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} else {
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conn.WriteInt(1)
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}
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}
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