common: Make use of [[nodiscard]] where applicable

Now that clang-format makes [[nodiscard]] attributes format sensibly, we
can apply them to several functions within the common library to allow
the compiler to complain about any misuses of the functions.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/common/spin_lock.h b/src/common/spin_lock.h
index 1df5528c4..4f946a258 100644
--- a/src/common/spin_lock.h
+++ b/src/common/spin_lock.h
@@ -17,7 +17,7 @@ class SpinLock {
 public:
     void lock();
     void unlock();
-    bool try_lock();
+    [[nodiscard]] bool try_lock();
 
 private:
     std::atomic_flag lck = ATOMIC_FLAG_INIT;