fix(ringbuf interface): handle ftruncate return value

The return value is marked "warn_unused" on some systems, so handle it.
tud-zih-energy · Dec 5, 2024 · 6d3c2b7 · 6d3c2b7
1 parent c92ae69
commit 6d3c2b7
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/include/lo2s/ringbuf.hpp b/include/lo2s/ringbuf.hpp
@@ -72,7 +72,11 @@ class ShmRingbuf
         if (create)
         {
             size = pagesize * pages;
-            ftruncate(fd_, size + sysconf(_SC_PAGESIZE));
+            if (ftruncate(fd_, size + sysconf(_SC_PAGESIZE)) == -1)
+            {
+                close(fd_);
+                throw std::system_error(errno, std::system_category());
+            }
         }
         else
         {