From 383557064fd77c028fd71facf8ec1cf6b278d3e6 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期五, 30 八月 2019 09:39:08 +0800
Subject: [PATCH] add send msg param

---
 shm.go |   37 +++++++++++++++++++++++++++++--------
 1 files changed, 29 insertions(+), 8 deletions(-)

diff --git a/shm.go b/shm.go
index 911c2d9..64e58e6 100644
--- a/shm.go
+++ b/shm.go
@@ -4,8 +4,9 @@
 	"errors"
 	"fmt"
 	"io"
+	"time"
 
-	"github.com/tmthrgd/shm-go"
+	"basic.com/valib/shm.git"
 )
 
 // SHM share memory
@@ -35,14 +36,33 @@
 		return nil, errors.New("please open shm consumer first")
 	}
 
-	data := make([]byte, maxRecvSize)
+	// data := make([]byte, maxRecvSize)
+	// n, err := s.rw.Read(data)
+	// if err == nil || err == io.EOF {
+	// 	data := data[:n:n]
+	// 	return data, nil
+	// }
+
+	data, err := s.rw.DirectRead()
+	if err == nil || err == io.EOF {
+		return data, nil
+	}
+	return nil, err
+}
+
+// Recv2 impl interface
+func (s *SHM) Recv2(data []byte) (int, error) {
+	if s == nil || s.rw == nil {
+		return 0, errors.New("please open shm consumer first")
+	}
+
 	n, err := s.rw.Read(data)
 	if err == nil || err == io.EOF {
 		data = data[:n:n]
-		return data, nil
+		return n, nil
 	}
 
-	return nil, err
+	return 0, err
 }
 
 // Close impl interface Deliver
@@ -80,14 +100,15 @@
 		// return nil, errors.New("shmServer created recv too much parameters")
 	}
 
+	time.Sleep(time.Millisecond)
 	shm.Unlink(url)
 
 	rw, err := shm.CreateSimplex(url, 0644, blocks, size)
 	if err == nil {
 		fmt.Println(rw.Name())
 		return &SHM{
-			rw,
-			agent,
+			rw:  rw,
+			typ: agent,
 		}, nil
 	}
 
@@ -102,8 +123,8 @@
 	rw, err := shm.OpenSimplex(url)
 	if err == nil {
 		return &SHM{
-			rw,
-			coactee,
+			rw:  rw,
+			typ: coactee,
 		}, nil
 	}
 	return nil, err

--
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