From be392a6596e481d82032d85060d1a072d327e3f4 Mon Sep 17 00:00:00 2001
From: 554325746@qq.com <554325746@qq.com>
Date: 星期四, 22 八月 2019 15:30:35 +0800
Subject: [PATCH] test shm
---
shm.go | 27 +++++++++++++++------------
1 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/shm.go b/shm.go
index 6b61dbc..ba48253 100644
--- a/shm.go
+++ b/shm.go
@@ -1,10 +1,9 @@
package deliver
import (
- "bytes"
"errors"
"fmt"
- "io"
+ // "io"
"time"
@@ -13,8 +12,10 @@
// SHM share memory
type SHM struct {
- rw *shm.ReadWriteCloser
- typ td
+ rw *shm.ReadWriteCloser
+ typ td
+
+ data []byte
}
// Send impl interface Diliver
@@ -52,18 +53,18 @@
return nil, errors.New("please open shm consumer first")
}
- ch := make(chan []byte)
+ ch := make(chan int)
go func(){
- buffer := new(bytes.Buffer)
- _, err := s.rw.WriteTo(buffer)
- if err == nil || err == io.EOF {
- ch <- buffer.Bytes()
- }
- ch <- nil
+ n, _ := s.rw.Read(s.data)
+ ch <- n
}()
select{
case d := <-ch:
- return d, nil
+ if d > 0{
+ data := make([]byte, d)
+ copy(data, s.data)
+ return data, nil
+ }
case <- time.After(3 * time.Second):
return nil, errors.New("recv time out")
}
@@ -123,6 +124,7 @@
return &SHM{
rw,
agent,
+ make([]byte, maxRecvSize),
}, nil
}
@@ -139,6 +141,7 @@
return &SHM{
rw,
coactee,
+ make([]byte, maxRecvSize),
}, nil
}
return nil, err
--
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