Add WITH_LOCK macro: run code while locking a mutex.

NewCapital · Jun 17, 2020 · e9be861 · e9be861
1 parent 6e519ba
commit e9be861
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/sync.h b/src/sync.h
@@ -190,6 +190,16 @@ class SCOPED_LOCKABLE CCriticalBlock
         LeaveCritical();           \
     }
 
+//! Run code while locking a mutex.
+//!
+//! Examples:
+//!
+//!   WITH_LOCK(cs, shared_val = shared_val + 1);
+//!
+//!   int val = WITH_LOCK(cs, return shared_val);
+//!
+#define WITH_LOCK(cs, code) [&] { LOCK(cs); code; }()
+
 class CSemaphore
 {
 private: