fix segfault on SIGINT before UHD init completes

2 files changed, 14 insertions, 6 deletions

diff --git a/src/OutputUHD.cpp b/src/OutputUHD.cpp
index 87ea9c3..c7e9fac 100644
--- a/src/OutputUHD.cpp
+++ b/src/OutputUHD.cpp
@@ -122,8 +122,8 @@ OutputUHD::OutputUHD(
     // the buffers at object initialisation.
     first_run(true),
     gps_fix_verified(false),
+    worker(&uwd),
     myDelayBuf(0)
-
 {
     myConf.muting = true;     // is remote-controllable, and reset by the GPS fix check
     myConf.staticDelayUs = 0; // is remote-controllable
@@ -269,7 +269,6 @@ OutputUHD::OutputUHD(
 OutputUHD::~OutputUHD()
 {
     MDEBUG("OutputUHD::~OutputUHD() @ %p\n", this);
-    worker.stop();
 }
 
 
diff --git a/src/OutputUHD.h b/src/OutputUHD.h
index 6de945e..a74f627 100644
--- a/src/OutputUHD.h
+++ b/src/OutputUHD.h
@@ -126,9 +126,11 @@ struct UHDWorkerData {
 
 class UHDWorker {
     public:
-        void start(struct UHDWorkerData *uhdworkerdata) {
+        UHDWorker(struct UHDWorkerData *uhdworkerdata) {
             uwd = uhdworkerdata;
+        }
 
+        void start(struct UHDWorkerData *uhdworkerdata) {
             uwd->running = true;
             uhd_thread = boost::thread(&UHDWorker::process_errhandler, this);
         }
@@ -141,6 +143,13 @@ class UHDWorker {
             uhd_thread.join();
         }
 
+        ~UHDWorker() {
+            stop();
+        }
+
+        UHDWorker(const UHDWorker& other) = delete;
+        UHDWorker& operator=(const UHDWorker& other) = delete;
+
     private:
         // Asynchronous message statistics
         int num_underflows;
@@ -234,17 +243,17 @@ class OutputUHD: public ModOutput, public RemoteControllable {
 
 
     protected:
-        OutputUHD(const OutputUHD& other);
-        OutputUHD& operator=(const OutputUHD& other);
+        OutputUHD(const OutputUHD& other) = delete;
+        OutputUHD& operator=(const OutputUHD& other) = delete;
 
         EtiReader *myEtiReader;
         OutputUHDConfig& myConf;
         uhd::usrp::multi_usrp::sptr myUsrp;
         std::shared_ptr<boost::barrier> mySyncBarrier;
-        UHDWorker worker;
         bool first_run;
         bool gps_fix_verified;
         struct UHDWorkerData uwd;
+        UHDWorker worker;
 
     private:
         // Resize the internal delay buffer according to the dabMode and