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-rw-r--r--docs/ref/migrate/nng1.md5
-rw-r--r--include/nng/nng.h17
2 files changed, 20 insertions, 2 deletions
diff --git a/docs/ref/migrate/nng1.md b/docs/ref/migrate/nng1.md
index 663bf002..4aa805bb 100644
--- a/docs/ref/migrate/nng1.md
+++ b/docs/ref/migrate/nng1.md
@@ -13,10 +13,11 @@ See the [Migrating From libnanomsg](nanomsg.md) chapter for details.
It is now required for applications to initialize the library explicitly before using it.
This is done using the [`nng_init`] function.
-## Socket Close Function Renamed
+## Renamed Functions
The `nng_close` function has been renamed to [`nng_socket_close`] to make it clearer that
-the object being closed is a socket.
+the object being closed is a socket. A compatible `nng_close` macro is available by defining `NNG1_TRANSITION`
+in your compilation environment.
## New AIO Error Code NNG_ESTOPPED
diff --git a/include/nng/nng.h b/include/nng/nng.h
index e4e97f86..16fcf51b 100644
--- a/include/nng/nng.h
+++ b/include/nng/nng.h
@@ -1608,6 +1608,23 @@ NNG_DECL int nng_tls_config_psk(
NNG_DECL int nng_tls_config_version(
nng_tls_config *, nng_tls_version, nng_tls_version);
+// These transition macros may help with migration from NNG1.
+// Applications should try to avoid depending on these any longer than
+// necessary, as they may be removed in a future update. This is far from a
+// sufficient set for a transition.
+#ifdef NNG1_TRANSITION
+#define nng_nop() \
+ do { \
+ } while (0)
+#define nng_close(s) nng_socket_close(s)
+#define nng_inproc_register() nng_nop()
+#define nng_ipc_register() nng_nop()
+#define nng_tls_register() nng_nop()
+#define nng_ws_register() nng_nop()
+#define nng_wss_register() nng_nop()
+#define nng_zt_register() nng_nop()
+#endif
+
#ifdef __cplusplus
}
#endif