Switch to libsystemd events

[src/app-framework-binder.git] / src / afb-common.c

diff --git a/src/afb-common.c b/src/afb-common.c
new file mode 100644 (file)
index 0000000..e8fe4b7
--- /dev/null
+++ b/src/afb-common.c
@@ -0,0 +1,89 @@
+/* 
+ * Copyright (C) 2015 "IoT.bzh"
+ * Author José Bollo <jose.bollo@iot.bzh>
+ *
+ * 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.
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <systemd/sd-event.h>
+#include <systemd/sd-bus.h>
+
+#include "afb-common.h"
+
+/*
+struct sd_event *afb_common_get_thread_event_loop()
+{
+       sd_event *result;
+       int rc = sd_event_default(&result);
+       if (rc != 0) {
+               errno = -rc;
+               result = NULL;
+       }
+       return result;
+}
+*/
+
+static void *sdopen(void **p, int (*f)(void **))
+{
+       if (*p == NULL) {
+               int rc = f(p);
+               if (rc < 0) {
+                       errno = -rc;
+                       *p = NULL;
+               }
+       }
+       return *p;
+}
+
+static struct sd_bus *sdbusopen(struct sd_bus **p, int (*f)(struct sd_bus **))
+{
+       if (*p == NULL) {
+               int rc = f(p);
+               if (rc < 0) {
+                       errno = -rc;
+                       *p = NULL;
+               } else {
+                       rc = sd_bus_attach_event(*p, afb_common_get_event_loop(), 0);
+                       if (rc < 0) {
+                               sd_bus_unref(*p);
+                               errno = -rc;
+                               *p = NULL;
+                       }
+               }
+       }
+       return *p;
+}
+
+struct sd_event *afb_common_get_event_loop()
+{
+       static sd_event *result = NULL;
+       return sdopen((void*)&result, (void*)sd_event_new);
+}
+
+struct sd_bus *afb_common_get_user_bus()
+{
+       static struct sd_bus *result = NULL;
+       return sdbusopen((void*)&result, (void*)sd_bus_open_user);
+}
+
+struct sd_bus *afb_common_get_system_bus()
+{
+       static struct sd_bus *result = NULL;
+       return sdbusopen((void*)&result, (void*)sd_bus_open_system);
+}
+
+
+