From 0805fa7af37c95ac09ce3054f5d9b7cfb371e0ea Mon Sep 17 00:00:00 2001
From: Martin Hierholzer <martin.hierholzer@desy.de>
Date: Fri, 25 Nov 2016 14:43:36 +0100
Subject: [PATCH] make sure the constant value gets passed on to the receivers
exactly one time
---
include/ConstantAccessor.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/ConstantAccessor.h b/include/ConstantAccessor.h
index bf59096b..27be3e7e 100644
--- a/include/ConstantAccessor.h
+++ b/include/ConstantAccessor.h
@@ -32,7 +32,11 @@ namespace ChimeraTK {
bool readNonBlocking() {
mtca4u::NDRegisterAccessor<UserType>::buffer_2D[0] = _value;
- return true;
+ if(firstRead) {
+ firstRead = false;
+ return true;
+ }
+ return false;
}
void write() {
@@ -53,6 +57,8 @@ namespace ChimeraTK {
protected:
std::vector<UserType> _value;
+
+ bool firstRead{true};
};
--
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