pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
-/* Global grace period counter */
-int urcu_gp_ctr;
+/*
+ * Global grace period counter.
+ * Contains the current RCU_GP_CTR_BIT.
+ * Also has a RCU_GP_CTR_BIT of 1, to accelerate the reader fast path.
+ */
+long urcu_gp_ctr = RCU_GP_COUNT;
-int __thread urcu_active_readers;
+long __thread urcu_active_readers;
/* Thread IDs of registered readers */
#define INIT_NUM_THREADS 4
struct reader_data {
pthread_t tid;
- int *urcu_active_readers;
+ long *urcu_active_readers;
};
#ifdef DEBUG_YIELD
urcu_gp_ctr ^= RCU_GP_CTR_BIT;
}
+#ifdef DEBUG_FULL_MB
+static void force_mb_all_threads(void)
+{
+ mb();
+}
+#else
static void force_mb_all_threads(void)
{
struct reader_data *index;
mb(); /* read sig_done before ending the barrier */
debug_yield_write();
}
+#endif
void wait_for_quiescent_state(void)
{
internal_urcu_unlock();
}
+#ifndef DEBUG_FULL_MB
void sigurcu_handler(int signo, siginfo_t *siginfo, void *context)
{
mb();
assert(act.sa_sigaction == sigurcu_handler);
free(reader_data);
}
+#endif