added the possibility to set the ABT-IO instance of a provider afterward

include/remi/remi-server.h

@@ -92,6 +92,18 @@ int remi_provider_registered(
         ABT_pool* pool,
         remi_provider_t* provider);
 
+/**
+ * @brief Sets the ABT-IO instance to use for I/O.
+ *
+ * @param provider Provider.
+ * @param abtio ABT-IO instance.
+ *
+ * @return REMI_SUCCESS or error code defined in remi-common.h.
+ */
+int remi_provider_set_abt_io_instance(
+        remi_provider_t provider,
+        abt_io_instance_id* abtio);
+
 /**
  * @brief Registers a migration class by providing a callback
  * to call when a fileset of that class is migrated.

src/remi-client.cpp

@@ -329,7 +329,6 @@ int migrate_using_abtio(
         // get file size
         struct stat st;
         if(0 != fstat(fd, &st)) {
-            close(fd);
             cleanup();
             return REMI_ERR_IO;
         }

src/remi-server.cpp

@@ -463,6 +463,14 @@ extern "C" int remi_provider_registered(
     return REMI_SUCCESS;
 }
 
+extern "C" int remi_provider_set_abt_io_instance(
+        remi_provider_t provider,
+        abt_io_instance_id* abtio)
+{
+    provider->m_abt_io = abtio;
+    return REMI_SUCCESS;
+}
+
 extern "C" int remi_provider_register_migration_class(
         remi_provider_t provider,
         const char* class_name,