bugfix: build error with nginx 1.7.4 or older version

Author: timebug

src/ngx_http_lua_sleep.c

@@ -159,11 +159,20 @@ ngx_http_lua_sleep_cleanup(void *data)
     }
 
 #ifdef HAVE_POSTED_DELAYED_EVENTS_PATCH
+#if (nginx_version >= 1007005)
     if (coctx->sleep.posted) {
+#else
+    if (coctx->sleep.prev) {
+#endif
         ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
                        "lua clean up the posted event for pending ngx.sleep");
 
-        ngx_delete_posted_event(&coctx->sleep);
+        /*
+        * We need the extra parentheses around the argument
+        * of ngx_delete_posted_event() just to work around macro issues in
+        * nginx cores older than 1.7.5 (exclusive).
+        */
+        ngx_delete_posted_event((&coctx->sleep));
     }
 #endif
 }

src/ngx_http_lua_socket_tcp.c

@@ -6024,8 +6024,17 @@ ngx_http_lua_tcp_queue_conn_op_cleanup(void *data)
                    "lua tcp socket abort queueing, conn_op_ctx: %p, u: %p",
                    conn_op_ctx, u);
 
+#if (nginx_version >= 1007005)
     if (conn_op_ctx->event.posted) {
-        ngx_delete_posted_event(&conn_op_ctx->event);
+#else
+    if (conn_op_ctx->event.prev) {
+#endif
+        /*
+        * We need the extra parentheses around the argument
+        * of ngx_delete_posted_event() just to work around macro issues in
+        * nginx cores older than 1.7.5 (exclusive).
+        */
+        ngx_delete_posted_event((&conn_op_ctx->event));
 
     } else if (conn_op_ctx->event.timer_set) {
         ngx_del_timer(&conn_op_ctx->event);