From 64be028166dc588269d7cfc8a5c2650777feb32a Mon Sep 17 00:00:00 2001
From: Justin Ethier <justin.ethier@gmail.com>
Date: Sat, 17 Jun 2017 01:01:59 -0400
Subject: [PATCH] Added gc_is_mutator_active()

---
 gc.c                    | 12 ++++++++++++
 include/cyclone/types.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/gc.c b/gc.c
index 0491d66f..c45cb4b1 100644
--- a/gc.c
+++ b/gc.c
@@ -195,6 +195,18 @@ void gc_remove_mutator(gc_thread_data * thd)
   pthread_mutex_unlock(&mutators_lock);
 }
 
+int gc_is_mutator_active(gc_thread_data *thd)
+{
+  ck_array_iterator_t iterator;
+  gc_thread_data *m;
+  CK_ARRAY_FOREACH(&Cyc_mutators, &iterator, &m) {
+    if (m == thd) {
+      return 1;
+    }
+  }
+  return 0;
+}
+
 /**
  * @brief Free thread data for all terminated mutators
  */
diff --git a/include/cyclone/types.h b/include/cyclone/types.h
index ca6bebcd..3c8c5c94 100644
--- a/include/cyclone/types.h
+++ b/include/cyclone/types.h
@@ -306,6 +306,7 @@ struct gc_thread_data_t {
 void gc_initialize(void);
 void gc_add_mutator(gc_thread_data * thd);
 void gc_remove_mutator(gc_thread_data * thd);
+int gc_is_mutator_active(gc_thread_data *thd);
 gc_heap *gc_heap_create(int heap_type, size_t size, size_t max_size,
                         size_t chunk_size, gc_thread_data *thd);
 gc_heap *gc_heap_free(gc_heap *page, gc_heap *prev_page);