+/* Value != 0 when the framework configuration is done. Value > 1 if the
+ * mallocators should be protected from concurrent accesses. */
+static int initialization_done = 0;
+
+static inline void lock_reset(xbt_mallocator_t m)
+{
+ m->lock = 0;
+}
+
+static inline void lock_acquire(xbt_mallocator_t m)
+{
+ if (initialization_done > 1) {
+ while (__atomic_test_and_set(&m->lock, __ATOMIC_ACQUIRE))
+ /* nop */;
+ }
+}
+
+static inline void lock_release(xbt_mallocator_t m)
+{
+ if (initialization_done > 1)
+ __atomic_clear(&m->lock, __ATOMIC_RELEASE);
+}
+
+/**
+ * This function must be called once the framework configuration is done. If not, mallocators will never get used.
+ * Check the implementation notes in src/xbt/mallocator.c for the justification of this.
+ *
+ * For example, surf_config uses this function to tell to the mallocators that the simgrid configuration is now
+ * finished and that it can create them if not done yet */
+void xbt_mallocator_initialization_is_done(int protect)
+{
+ initialization_done = protect ? 2 : 1;
+}
+
+/** used by the module to know if it's time to activate the mallocators yet */
+static inline int xbt_mallocator_is_active(void) {
+#if SIMGRID_HAVE_MALLOCATOR
+ return initialization_done && !MC_is_active();
+#else
+ return 0;
+#endif
+}