avoid deep nested calls, flatten call tree

1 files changed, 20 insertions, 3 deletions

diff --git a/src/mail/ngx_mail_smtp_handler.c b/src/mail/ngx_mail_smtp_handler.c
index 46247239c..a88a82cd4 100644
--- a/src/mail/ngx_mail_smtp_handler.c
+++ b/src/mail/ngx_mail_smtp_handler.c
@@ -12,6 +12,7 @@
 
 
 static void ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx);
+static void ngx_mail_smtp_resolve_name(ngx_event_t *rev);
 static void ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx);
 static void ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c);
 static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev);
@@ -91,9 +92,8 @@ ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c)
 static void
 ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx)
 {
-    ngx_connection_t          *c;
-    ngx_mail_session_t        *s;
-    ngx_mail_core_srv_conf_t  *cscf;
+    ngx_connection_t    *c;
+    ngx_mail_session_t  *s;
 
     s = ctx->data;
     c = s->connection;
@@ -134,6 +134,23 @@ ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx)
     ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
                    "address resolved: %V", &s->host);
 
+    c->read->handler = ngx_mail_smtp_resolve_name;
+
+    ngx_post_event(c->read, &ngx_posted_events);
+}
+
+
+static void
+ngx_mail_smtp_resolve_name(ngx_event_t *rev)
+{
+    ngx_connection_t          *c;
+    ngx_mail_session_t        *s;
+    ngx_resolver_ctx_t        *ctx;
+    ngx_mail_core_srv_conf_t  *cscf;
+
+    c = rev->data;
+    s = c->data;
+
     cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
 
     ctx = ngx_resolve_start(cscf->resolver, NULL);