diff --git a/liblog/config_read.c b/liblog/config_read.c
index 1f54152..a4232f4 100644
--- a/liblog/config_read.c
+++ b/liblog/config_read.c
@@ -60,3 +60,15 @@
     __android_log_add_transport(&__android_log_persist_read, &pmsgLoggerRead);
 #endif
 }
+
+LIBLOG_HIDDEN void __android_log_config_read_close() {
+    struct android_log_transport_read *transport;
+    struct listnode *n;
+
+    read_transport_for_each_safe(transport, n, &__android_log_transport_read) {
+        list_remove(&transport->node);
+    }
+    read_transport_for_each_safe(transport, n, &__android_log_persist_read) {
+        list_remove(&transport->node);
+    }
+}
diff --git a/liblog/config_read.h b/liblog/config_read.h
index 49a3b75..892e80d 100644
--- a/liblog/config_read.h
+++ b/liblog/config_read.h
@@ -28,22 +28,31 @@
 
 #define read_transport_for_each(transp, transports)                         \
     for ((transp) = node_to_item((transports)->next,                        \
-                               struct android_log_transport_read, node);    \
-         ((transp) != node_to_item(transports,                              \
-                                 struct android_log_transport_read, node)); \
+                                 struct android_log_transport_read, node);  \
+         ((transp) != node_to_item((transports),                            \
+                                   struct android_log_transport_read,       \
+                                   node)) &&                                \
+         ((transp) != node_to_item((transp)->node.next,                     \
+                                   struct android_log_transport_read,       \
+                                   node));                                  \
          (transp) = node_to_item((transp)->node.next,                       \
-                               struct android_log_transport_read, node))    \
+                                 struct android_log_transport_read, node))
 
 #define read_transport_for_each_safe(transp, n, transports)                 \
     for ((transp) = node_to_item((transports)->next,                        \
-                               struct android_log_transport_read, node),    \
+                                 struct android_log_transport_read, node),  \
          (n) = (transp)->node.next;                                         \
-         ((transp) != node_to_item(transports,                              \
-                                 struct android_log_transport_read, node)); \
-         (transp) = node_to_item(n, struct android_log_transport_read, node), \
+         ((transp) != node_to_item((transports),                            \
+                                   struct android_log_transport_read,       \
+                                   node)) &&                                \
+         ((transp) != node_to_item((n), struct android_log_transport_read,  \
+                                   node));                                  \
+         (transp) = node_to_item((n), struct android_log_transport_read,    \
+                                 node),                                     \
          (n) = (transp)->node.next)
 
 LIBLOG_HIDDEN void __android_log_config_read();
+LIBLOG_HIDDEN void __android_log_config_read_close();
 
 __END_DECLS
 
diff --git a/liblog/config_write.c b/liblog/config_write.c
index d689f63..0aaaea6 100644
--- a/liblog/config_write.c
+++ b/liblog/config_write.c
@@ -64,3 +64,17 @@
     __android_log_add_transport(&__android_log_transport_write, &fakeLoggerWrite);
 #endif
 }
+
+LIBLOG_HIDDEN void __android_log_config_write_close() {
+    struct android_log_transport_write *transport;
+    struct listnode *n;
+
+    write_transport_for_each_safe(transport, n, &__android_log_transport_write) {
+        transport->logMask = 0;
+        list_remove(&transport->node);
+    }
+    write_transport_for_each_safe(transport, n, &__android_log_persist_write) {
+        transport->logMask = 0;
+        list_remove(&transport->node);
+    }
+}
diff --git a/liblog/config_write.h b/liblog/config_write.h
index 3b01a9a..8825411 100644
--- a/liblog/config_write.h
+++ b/liblog/config_write.h
@@ -29,21 +29,30 @@
 #define write_transport_for_each(transp, transports)                         \
     for ((transp) = node_to_item((transports)->next,                         \
                                  struct android_log_transport_write, node);  \
-         ((transp) != node_to_item(transports,                               \
-                                 struct android_log_transport_write, node)); \
+         ((transp) != node_to_item((transports),                             \
+                                   struct android_log_transport_write,       \
+                                   node)) &&                                 \
+         ((transp) != node_to_item((transp)->node.next,                      \
+                                   struct android_log_transport_write,       \
+                                   node));                                   \
          (transp) = node_to_item((transp)->node.next,                        \
-                                 struct android_log_transport_write, node))  \
+                                 struct android_log_transport_write, node))
 
 #define write_transport_for_each_safe(transp, n, transports)                 \
     for ((transp) = node_to_item((transports)->next,                         \
                                  struct android_log_transport_write, node),  \
          (n) = (transp)->node.next;                                          \
-         ((transp) != node_to_item(transports,                               \
-                                   struct android_log_transport_write, node)); \
-         (transp) = node_to_item(n, struct android_log_transport_write, node), \
+         ((transp) != node_to_item((transports),                             \
+                                   struct android_log_transport_write,       \
+                                   node)) &&                                 \
+         ((transp) != node_to_item((n), struct android_log_transport_write,  \
+                                   node));                                   \
+         (transp) = node_to_item((n), struct android_log_transport_write,    \
+                                 node),                                      \
          (n) = (transp)->node.next)
 
 LIBLOG_HIDDEN void __android_log_config_write();
+LIBLOG_HIDDEN void __android_log_config_write_close();
 
 __END_DECLS