Initialization is more complex than what I'd like due
to MSVC compatibility that for some reason does not like:
std::atomic_flag lock = ATOMIC_FLAG_INIT;
No functional change.
#ifndef THREAD_H_INCLUDED
#define THREAD_H_INCLUDED
+#include <atomic>
#include <bitset>
#include <condition_variable>
#include <mutex>
};
+/// Spinlock class wraps low level atomic operations to provide spin lock functionality
+
+class Spinlock {
+
+ std::atomic_flag lock;
+
+public:
+ Spinlock() { std::atomic_flag_clear(&lock); }
+ void acquire() { while (lock.test_and_set(std::memory_order_acquire)) {} }
+ void release() { lock.clear(std::memory_order_release); }
+};
+
+
/// ThreadBase struct is the base of the hierarchy from where we derive all the
/// specialized thread classes.