From 1df33ffacf98f09a33969a8c8ed4078247524d29 Mon Sep 17 00:00:00 2001
From: chenshijun <chenshijun@aiotlink.com>
Date: 星期五, 09 十月 2020 14:27:45 +0800
Subject: [PATCH] attach增加超时
---
shmqueue.go | 28 +++++++++++-----------------
1 files changed, 11 insertions(+), 17 deletions(-)
diff --git a/shmqueue.go b/shmqueue.go
index bf6dcfd..9c4f16c 100644
--- a/shmqueue.go
+++ b/shmqueue.go
@@ -3,7 +3,7 @@
import (
"context"
"fmt"
- "github.com/gen2brain/shm"
+ shm "basic.com/valib/goshm.git"
"reflect"
"runtime"
"sync/atomic"
@@ -12,7 +12,7 @@
)
const (
- TimePeriodPutOrGet = time.Duration(5) * time.Microsecond
+ TimePeriodPutOrGet = time.Duration(5)*time.Millisecond //ms
)
//Element info
@@ -72,6 +72,9 @@
shmLen = shmblocks*uint32(unsafe.Sizeof(datainfo)) + uint32(unsafe.Sizeof(shmstruct))
data, shmid := CreateRawShm(ctx, int(shmLen), key)
+ if shmid == -1 {
+ return nil
+ }
q := bytes2shmEsQueue(data)
//init parameters
q.capacity = shmblocks
@@ -103,7 +106,10 @@
func AttachQueue(ctx context.Context, key int) *EsQueueInfo {
var eqi EsQueueInfo
- data, shmid := AttachRawShm(ctx, key)
+ data, shmid := AttachRawShmTimeout(ctx, key)
+ if shmid == -1 {
+ return nil
+ }
shmdata := bytes2shmEsQueue(data)
eqi.EsCaches = ptr2esCache(unsafe.Pointer(&shmdata.cache), int(shmdata.capacity))
//fmt.Println("AttachQueue EsCaches:", eqi.EsCaches)
@@ -189,8 +195,8 @@
}
//todo
- if posCnt >= capMod-1 {
- //if posCnt >= capMod {
+ //if posCnt >= capMod-1 {
+ if posCnt >= capMod {
runtime.Gosched()
return false, int(posCnt)
}
@@ -204,8 +210,6 @@
cache = &(eqi.EsCaches[putPosNew&capMod])
- //tryMax := 100
- //tryCount := 0
for {
getNo := atomic.LoadUint32(&cache.getNo)
putNo := atomic.LoadUint32(&cache.putNo)
@@ -216,10 +220,6 @@
} else {
runtime.Gosched()
}
- //tryCount++
- //if tryCount >= tryMax {
- // return false, int(posCnt)
- //}
}
}
@@ -301,8 +301,6 @@
cache = &(eqi.EsCaches[getPosNew&capMod])
- //tryMax := 100
- //tryCount := 0
for {
getNo := atomic.LoadUint32(&cache.getNo)
putNo := atomic.LoadUint32(&cache.putNo)
@@ -314,10 +312,6 @@
} else {
runtime.Gosched()
}
- //tryCount++
- //if tryCount >= tryMax {
- // return ElemInfo{}, false, int(posCnt)
- //}
}
}
--
Gitblit v1.8.0