From 20a4c4bfb5b9ea427f9117408ff0e4513ebef9eb Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期一, 26 八月 2019 17:08:41 +0800
Subject: [PATCH] use shm direct read
---
shm.go | 32 +++++++++++++++++++++-----------
1 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/shm.go b/shm.go
index 0edb422..7997e7d 100644
--- a/shm.go
+++ b/shm.go
@@ -4,6 +4,7 @@
"errors"
"fmt"
"io"
+ "time"
"basic.com/valib/shm.git"
)
@@ -35,13 +36,18 @@
return nil, errors.New("please open shm consumer first")
}
- data := make([]byte, maxRecvSize)
- n, err := s.rw.Read(data)
+ // data := make([]byte, maxRecvSize)
+ // n, err := s.rw.Read(data)
+ // if err == nil || err == io.EOF {
+ // data := make([]byte, maxRecvSize)
+ // copy(data, s.recvData)
+ // return data, nil
+ // }
+
+ data, err := s.rw.DirectRead()
if err == nil || err == io.EOF {
- data = data[:n:n]
return data, nil
}
-
return nil, err
}
@@ -73,18 +79,22 @@
return nil, errors.New("shmServer created recv error parameters")
}
}
- if len(param) != 2 {
- return nil, errors.New("shmServer created recv too much parameters")
+
+ blocks, size := 2, maxRecvSize
+ if len(param) == 2 {
+ blocks, size = param[0], param[1]
+ // return nil, errors.New("shmServer created recv too much parameters")
}
+ time.Sleep(time.Millisecond)
shm.Unlink(url)
- rw, err := shm.CreateSimplex(url, 0644, param[0], param[1])
+ rw, err := shm.CreateSimplex(url, 0644, blocks, size)
if err == nil {
fmt.Println(rw.Name())
return &SHM{
- rw,
- agent,
+ rw: rw,
+ typ: agent,
}, nil
}
@@ -99,8 +109,8 @@
rw, err := shm.OpenSimplex(url)
if err == nil {
return &SHM{
- rw,
- coactee,
+ rw: rw,
+ typ: coactee,
}, nil
}
return nil, err
--
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