bugfix: use of light threads could lead to connection hanging. thanks mike07026 for the report in #31.

Author: agentzh

src/ngx_stream_lua_util.c

@@ -1727,10 +1727,11 @@ ngx_stream_lua_run_posted_threads(ngx_connection_t *c, lua_State *L,
 
         /* rc == NGX_ERROR || rc >= NGX_OK */
 
-#if 0
-        if (ctx->entered_content_phase) {
-            ngx_stream_lua_finalize_session(s, rc);
-        }
+#if 1
+	if (rc == NGX_OK) {
+	    ngx_stream_lua_finalize_session(s, NGX_OK);
+	    return NGX_DONE;
+	}
 #endif
 
         return rc;

t/098-uthread-wait.t

@@ -1231,3 +1231,21 @@ $s;
 [error]
 [alert]
 
+
+
+=== TEST 23: hanging bug
+--- stream_server_config
+    content_by_lua_block {
+        local function foo()
+            ngx.say("ok")
+        end
+
+        ngx.sleep(0.001)
+        local co = ngx.thread.spawn(foo)
+        ngx.thread.wait(co)
+    }
+--- stream_response
+ok
+--- no_error_log
+[error]
+[alert]