Add agl-service-windowmanager-2017

    Add a new binding agl-service-windowmanager-2017.
    A image about this see JIRA SPEC-915.

    [PatchSet2]
    Use aglwgt make package.

    [PatchSet3]
    Modify to wait until wayland compositor starts up.
    Bug-AGL: SPEC-925

Change-Id: I8729bb71b5e91d5b009a5bab77232d92605c43ea
Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>

1 files changed, 175 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
new file mode 100755
index 0000000..a1e3db8
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include "app.hpp"
+#include "json_helper.hpp"
+#include "util.hpp"
+#include "wayland.hpp"
+
+#include <algorithm>
+#include <mutex>
+
+#include <json.h>
+
+extern "C" {
+#include <afb/afb-binding.h>
+#include <systemd/sd-event.h>
+}
+
+namespace {
+
+struct afb_instance {
+   std::unique_ptr<wl::display> display;
+   wm::App app;
+
+   afb_instance() : display{new wl::display}, app{this->display.get()} {}
+
+   int init();
+};
+
+struct afb_instance *g_afb_instance;
+
+int afb_instance::init() {
+   return this->app.init();
+}
+
+int display_event_callback(sd_event_source *evs, int /*fd*/, uint32_t events,
+                           void * /*data*/) {
+   ST();
+
+   if ((events & EPOLLHUP) != 0) {
+      logerror("The compositor hung up, dying now.");
+      delete g_afb_instance;
+      g_afb_instance = nullptr;
+      goto error;
+   }
+
+   if ((events & EPOLLIN) != 0u) {
+      {
+         STN(display_read_events);
+         g_afb_instance->app.display->read_events();
+         g_afb_instance->app.set_pending_events();
+      }
+      {
+         // We want do dispatch pending wayland events from within
+         // the API context
+         STN(winman_ping_api_call);
+         afb_service_call("windowmanager", "ping", json_object_new_object(),
+                          [](void *c, int st, json_object *j) {
+                             STN(winman_ping_api_call_return);
+                          },
+                          nullptr);
+      }
+   }
+
+   return 0;
+
+error:
+   sd_event_source_unref(evs);
+   if (getenv("WINMAN_EXIT_ON_HANGUP") != nullptr) {
+   exit(1);
+}
+   return -1;
+}
+
+//  _     _           _ _                 _       _ _    ____
+// | |__ (_)_ __   __| (_)_ __   __ _    (_)_ __ (_) |_ / /\ \
+// | '_ \| | '_ \ / _` | | '_ \ / _` |   | | '_ \| | __| |  | |
+// | |_) | | | | | (_| | | | | | (_| |   | | | | | | |_| |  | |
+// |_.__/|_|_| |_|\__,_|_|_| |_|\__, |___|_|_| |_|_|\__| |  | |
+//                              |___/_____|             \_\/_/
+int binding_init_() {
+   lognotice("WinMan ver. %s", WINMAN_VERSION_STRING);
+
+   if (g_afb_instance != nullptr) {
+      logerror("Wayland context already initialized?");
+      return 0;
+   }
+
+   if (getenv("XDG_RUNTIME_DIR") == nullptr) {
+      logerror("Environment variable XDG_RUNTIME_DIR not set");
+      goto error;
+   }
+
+   {
+      // wait until wayland compositor starts up.
+      int cnt = 0;
+      g_afb_instance = new afb_instance;
+      while (!g_afb_instance->display->ok()) {
+         cnt++;
+         if (20 <= cnt) {
+            logerror("Could not connect to compositor");
+            goto error;
+         }
+         logerror("Wait to start weston ...");
+         sleep(1);
+         delete g_afb_instance;
+         g_afb_instance = new afb_instance;
+      }
+   }
+
+   if (g_afb_instance->init() == -1) {
+      logerror("Could not connect to compositor");
+      goto error;
+   }
+
+   {
+      int ret = sd_event_add_io(afb_daemon_get_event_loop(), nullptr,
+                                g_afb_instance->display->get_fd(), EPOLLIN,
+                                display_event_callback, g_afb_instance);
+      if (ret < 0) {
+         logerror("Could not initialize afb_instance event handler: %d", -ret);
+         goto error;
+      }
+   }
+
+   atexit([] { delete g_afb_instance; });
+
+   return 0;
+
+error:
+   delete g_afb_instance;
+   g_afb_instance = nullptr;
+   return -1;
+}
+
+int binding_init() noexcept {
+   try {
+      return binding_init_();
+   } catch (std::exception &e) {
+      logerror("Uncaught exception in binding_init(): %s", e.what());
+   }
+   return -1;
+}
+
+}  // namespace
+
+#include "afb_binding_glue.inl"
+
+// XXX implement send_event right here...
+namespace wm {
+void binding_api::send_event(char const *evname, char const *label) {
+   logdebug("%s: %s(%s)", __func__, evname, label);
+   int ret = afb_daemon_broadcast_event(evname, json_object_new_string(label));
+   if (ret != 0) {
+      logdebug("afb_event_broadcast failed: %m");
+   }
+}
+} // namespace wm
+
+extern "C" const struct afb_binding_v2 afbBindingV2 = {
+   "windowmanager", nullptr, nullptr, windowmanager_verbs, nullptr, binding_init, nullptr, 0};