Warning C26111

Caller failing to release lock 'lock' before calling function 'func'.

Remarks

The annotation _Requires_lock_not_held_ imposes a precondition that the lock count for the specified lock can't be greater than zero when the function is called. Warning C26111 is issued when a function fails to release the lock before it calls another function.

Example

The following example generates warning C26111 because the _Requires_lock_not_held_ precondition is violated by the call to DoNotLock within the locked section.

typedef struct _DATA { CRITICAL_SECTION cs; int d; } DATA; _Requires_lock_not_held_(p->cs) void DoNotLock(DATA* p) { EnterCriticalSection(&p->cs); p->d = 0; LeaveCriticalSection(&p->cs); } void LockedFunction(DATA* p) { EnterCriticalSection(&p->cs); DoNotLock(p); // Warning C26111 LeaveCriticalSection(&p->cs); }