From c0789a6c0e9c21418fd2d567ec8b4cda84f7b061 Mon Sep 17 00:00:00 2001
From: Pirmin Duss <pirmin.duss@gapfruit.com>
Date: Mon, 19 Aug 2019 12:14:29 +0200
Subject: [PATCH] depot_deploy: status report

The idea is, that other components may know, when a valid
init.config is available.

Issue #3482
---
 repos/gems/src/app/depot_deploy/children.h |  8 +++++++
 repos/gems/src/app/depot_deploy/main.cc    | 25 ++++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/repos/gems/src/app/depot_deploy/children.h b/repos/gems/src/app/depot_deploy/children.h
index 558e6795a..04fcbc24d 100644
--- a/repos/gems/src/app/depot_deploy/children.h
+++ b/repos/gems/src/app/depot_deploy/children.h
@@ -133,6 +133,14 @@ class Depot_deploy::Children
 				child.gen_installation_entry(xml); });
 		}
 
+		size_t count() const
+		{
+			size_t count = 0;
+			_children.for_each([&] (Child const &) {
+				++count; });
+			return count;
+		}
+
 		bool any_incomplete() const {
 
 			bool result = false;
diff --git a/repos/gems/src/app/depot_deploy/main.cc b/repos/gems/src/app/depot_deploy/main.cc
index 683f385cb..eac86d841 100644
--- a/repos/gems/src/app/depot_deploy/main.cc
+++ b/repos/gems/src/app/depot_deploy/main.cc
@@ -13,6 +13,7 @@
 
 /* Genode includes */
 #include <util/retry.h>
+#include <util/reconstructible.h>
 #include <base/component.h>
 #include <base/attached_rom_dataspace.h>
 #include <base/heap.h>
@@ -34,6 +35,8 @@ struct Depot_deploy::Main
 	Expanding_reporter _query_reporter       { _env, "query" , "query"};
 	Expanding_reporter _init_config_reporter { _env, "config", "init.config"};
 
+	Constructible<Expanding_reporter> _state_reporter { };
+
 	Heap _heap { _env.ram(), _env.rm() };
 
 	Children _children { _heap };
@@ -48,6 +51,16 @@ struct Depot_deploy::Main
 		_config.update();
 		_blueprint.update();
 
+		bool const report_state =
+			_config.xml().has_sub_node("report") &&
+			_config.xml().sub_node("report").attribute_value("state", false);
+
+		_state_reporter.conditional(report_state, _env, "state", "state");
+
+		if (_state_reporter.constructed())
+			_state_reporter->generate([&] (Xml_generator xml) {
+				xml.attribute("running", true); });
+
 		Xml_node const config = _config.xml();
 
 		_children.apply_config(config);
@@ -76,6 +89,17 @@ struct Depot_deploy::Main
 				_children.gen_queries(xml);
 			});
 		}
+
+		if ((_children.count() > 0UL)
+		 && !_children.any_incomplete()
+		 && !_children.any_blueprint_needed()
+		 && _state_reporter.constructed()) {
+
+			_state_reporter->generate([&] (Xml_generator xml) {
+				xml.attribute("running", false);
+				xml.attribute("count", _children.count());
+			});
+		}
 	}
 
 	Main(Env &env) : _env(env)
@@ -83,6 +107,7 @@ struct Depot_deploy::Main
 		_config   .sigh(_config_handler);
 		_blueprint.sigh(_config_handler);
 
+
 		_handle_config();
 	}
 };