From 753387c34c4f38e83c2552dcf4b2dca9f365e41f Mon Sep 17 00:00:00 2001
From: Dhanya Thattil <dhanya.thattil@psi.ch>
Date: Fri, 4 Feb 2022 13:29:42 +0100
Subject: [PATCH] gotthard type can only have max 2 modules

---
 slsDetectorSoftware/src/DetectorImpl.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/slsDetectorSoftware/src/DetectorImpl.cpp b/slsDetectorSoftware/src/DetectorImpl.cpp
index 15454ab23..c28fe4c0c 100644
--- a/slsDetectorSoftware/src/DetectorImpl.cpp
+++ b/slsDetectorSoftware/src/DetectorImpl.cpp
@@ -281,6 +281,13 @@ void DetectorImpl::addModule(const std::string &hostname) {
 
     // get type by connecting
     detectorType type = Module::getTypeFromDetector(host, port);
+
+    // gotthard cannot have more than 2 modules (50um=1, 25um=2
+    if ((type == GOTTHARD || type == GOTTHARD2) && modules.size() > 2) {
+        freeSharedMemory();
+        throw sls::RuntimeError("Gotthard cannot have more than 2 modules");
+    }
+
     auto pos = modules.size();
     modules.emplace_back(
         sls::make_unique<Module>(type, detectorIndex, pos, false));