bugfix: requests would hang when nginx subrequests were used in the s…

…ame location because ngx_http_run_posted_requests was never called by anyone. thanks stonehuzhan for reporting this issue.

src/ngx_http_chunkin_filter_module.c

@@ -359,7 +359,13 @@ ngx_http_chunkin_resume_handler(ngx_http_request_t *r) {
         return rc;
     }
 
-    return ngx_http_chunkin_internal_redirect(r, &r->main->uri, &r->main->args,
-            ctx);
+    rc = ngx_http_chunkin_internal_redirect(r, &r->main->uri, &r->main->args,
+                                            ctx);
+
+    /* ngx_http_process_request calls this to handle subrequests,
+     * so we need to call it here as well */
+    ngx_http_run_posted_requests(r->connection);
+
+    return rc;
 }
 

t/bug.t

@@ -649,3 +649,50 @@ hello\r
 --- error_code: 411
 --- SKIP
 
+
+
+=== TEST 28: did not work with subrequests
+--- config
+    chunkin on;
+
+    error_page 411 = @my_411_error;
+    location @my_411_error {
+        chunkin_resume;
+    }
+
+    location = /t {
+        content_by_lua_file html/a.lua;
+    }
+
+    location = /sub {
+        echo hello world;
+    }
+--- user_files
+>>> a.lua
+ngx.req.read_body()
+local res = ngx.location.capture("/sub")
+ngx.say("sr: ", res.status)
+--- raw_request eval
+"POST /t HTTP/1.1\r
+Host: localhost\r
+Transfer-Encoding: chunked\r
+\r
+5\r
+hello\r
+0\r
+\r
+"
+--- more_headers
+Transfer-Encoding: chunked
+--- stap2
+F(ngx_http_finalize_request) {
+    if ($r->main->count >= 3) {
+        printf("============ %d\n", $r->main->count)
+        print_ubacktrace()
+    }
+}
+--- response_body_body
+sr: 200
+--- no_error_log
+[error]
+

util/build.sh

@@ -14,7 +14,9 @@ force=$2
 
 ngx-build $force $version \
           --with-cc-opt="-funsigned-char" \
+          --with-ld-opt="-L$PCRE_LIB -Wl,-rpath,$PCRE_LIB:$LUAJIT_LIB:/usr/local/lib" \
           --add-module=$root/../echo-nginx-module \
+          --add-module=$root/../lua-nginx-module \
           --add-module=$root $opts \
           --with-debug
           #\