From 2d390df9ede39c9d7c34bd8190b9329cfc371325 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期五, 27 九月 2019 16:19:05 +0800
Subject: [PATCH] remove exist ipc
---
shm.go | 40 ++++++++++++++++++++++++++++++++++++++--
1 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/shm.go b/shm.go
index 7997e7d..534fc83 100644
--- a/shm.go
+++ b/shm.go
@@ -13,6 +13,8 @@
type SHM struct {
rw *shm.ReadWriteCloser
typ td
+
+ // recvData []byte
}
// Send impl interface Diliver
@@ -36,21 +38,55 @@
return nil, errors.New("please open shm consumer first")
}
+ // orig
+
// data := make([]byte, maxRecvSize)
// n, err := s.rw.Read(data)
// if err == nil || err == io.EOF {
- // data := make([]byte, maxRecvSize)
- // copy(data, s.recvData)
+ // data := data[:n:n]
// return data, nil
// }
+
+ // cur
data, err := s.rw.DirectRead()
if err == nil || err == io.EOF {
return data, nil
}
+
+ // new
+
+ // if s.recvData == nil {
+ // s.recvData = make([]byte, maxRecvSize)
+ // }
+ // sliceHeader := (*reflect.SliceHeader)(unsafe.Pointer(&s.recvData))
+ // // sliceHeader.Cap = maxRecvSize
+ // sliceHeader.Len = maxRecvSize
+
+ // n, err := s.rw.Read(s.recvData)
+ // if err == nil || err == io.EOF {
+ // sliceHeader.Len = n
+ // return s.recvData, 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 n, nil
+ }
+
+ return 0, err
+}
+
// Close impl interface Deliver
func (s *SHM) Close() {
if s == nil {
--
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