Check the primary connection and assume primary if no response is found.

This guards against the case of stale shared memory that can happen when the primary application crashes or is forcefully killed. Issue itay-grudev#190 Signed-off-by: Adam Treat <[email protected]>
nomic-ai · Aug 29, 2024 · 21bdef0 · 21bdef0
1 parent 494772e
commit 21bdef0
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/singleapplication.cpp b/singleapplication.cpp
@@ -137,6 +137,13 @@ SingleApplication::SingleApplication( int &argc, char *argv[], bool allowSeconda
       }
     }
 
+    // Check to ensure the primary process really does exist by sending a message and if it does not
+    // then assume primary status
+    if ( inst->primary != false && !d->connectToPrimary( timeout, SingleApplicationPrivate::SecondaryInstance )) {
+          qDebug() << "SingleApplication: Cannot communicate with primary so assuming primary status.";
+          inst->primary = false;
+    }
+
     if( inst->primary == false ){
         d->startPrimary();
         if( ! d->memory->unlock() ){