Monitor for GPIO state change
Use libevdev to monitor for GPIO state change and
update item present accordingly.
Change-Id: I1959a5ea09a7570c096b05d78a190394767a5ddd
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/presence/main.cpp b/presence/main.cpp
index f6cb665..6116540 100644
--- a/presence/main.cpp
+++ b/presence/main.cpp
@@ -1,4 +1,5 @@
#include <iostream>
+#include <systemd/sd-event.h>
#include <phosphor-logging/log.hpp>
#include "argument.hpp"
#include "gpio_presence.hpp"
@@ -39,9 +40,31 @@
}
auto bus = sdbusplus::bus::new_default();
- auto name = options["name"];
- Presence presence(bus, inventory, path, std::stoul(key), name);
+ auto rc = 0;
+ sd_event* event = nullptr;
+ rc = sd_event_default(&event);
+ if (rc < 0)
+ {
+ log<level::ERR>("Error creating a default sd_event handler");
+ return rc;
+ }
+ EventPtr eventP{event};
+ event = nullptr;
- return 0;
+ auto name = options["name"];
+ Presence presence(bus, inventory, path, std::stoul(key), name, eventP);
+
+ while (true)
+ {
+ // -1 denotes wait forever
+ rc = sd_event_run(eventP.get(), (uint64_t) - 1);
+ if (rc < 0)
+ {
+ log<level::ERR>("Failure in processing request",
+ entry("ERROR=%s", strerror(-rc)));
+ break;
+ }
+ }
+ return rc;
}