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authorCharles Kerr <charles.kerr@canonical.com>2014-08-18 23:03:38 -0500
committerCharles Kerr <charles.kerr@canonical.com>2014-08-18 23:03:38 -0500
commit2c77b7e18df874428b0ec9d65a6b3386915f60a3 (patch)
tree8a293c023474ef5628e9a7fb5ef1a2f0bae6f729
parent139454ce848864a96db9ff1acf0552060ca2bbd8 (diff)
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use powerd for hw alarm wakeups
-rw-r--r--CMakeLists.txt6
-rw-r--r--debian/control2
-rw-r--r--include/datetime/wakeup-timer-powerd.h (renamed from include/datetime/wakeup-timer-uha.h)22
-rw-r--r--src/CMakeLists.txt6
-rw-r--r--src/main.cpp22
-rw-r--r--src/wakeup-timer-powerd.cpp304
-rw-r--r--src/wakeup-timer-uha.cpp175
7 files changed, 318 insertions, 219 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9b4987e..4d2fd95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,12 +44,6 @@ pkg_check_modules (SERVICE_DEPS REQUIRED
properties-cpp>=0.0.1)
include_directories (SYSTEM ${SERVICE_DEPS_INCLUDE_DIRS})
-CHECK_INCLUDE_FILE(ubuntu/hardware/alarm.h HAVE_UBUNTU_HW_ALARM_H)
-if (HAVE_UBUNTU_HW_ALARM_H)
- set (SERVICE_DEPS_LIBRARIES -lubuntu_platform_hardware_api ${SERVICE_DEPS_LIBRARIES})
- add_definitions(-DHAVE_UBUNTU_HW_ALARM_H)
-endif ()
-
##
## custom targets
##
diff --git a/debian/control b/debian/control
index 9e7133e..4b5f893 100644
--- a/debian/control
+++ b/debian/control
@@ -22,8 +22,6 @@ Build-Depends: cmake,
libedataserver1.2-dev (>= 3.5),
liburl-dispatcher1-dev,
libproperties-cpp-dev,
- libubuntu-platform-hardware-api-headers [armhf i386 amd64],
- libubuntu-platform-hardware-api-dev [armhf i386 amd64],
libdbustest1-dev,
locales,
Standards-Version: 3.9.3
diff --git a/include/datetime/wakeup-timer-uha.h b/include/datetime/wakeup-timer-powerd.h
index 093548b..6adbbb8 100644
--- a/include/datetime/wakeup-timer-uha.h
+++ b/include/datetime/wakeup-timer-powerd.h
@@ -17,8 +17,8 @@
* Charles Kerr <charles.kerr@canonical.com>
*/
-#ifndef INDICATOR_DATETIME_WAKEUP_TIMER_UHA_H
-#define INDICATOR_DATETIME_WAKEUP_TIMER_UHA_H
+#ifndef INDICATOR_DATETIME_WAKEUP_TIMER_POWERD_H
+#define INDICATOR_DATETIME_WAKEUP_TIMER_POWERD_H
#include <datetime/clock.h>
#include <datetime/wakeup-timer.h>
@@ -34,21 +34,19 @@ namespace datetime {
***/
/**
- * \brief a WakeupTimer implemented the UbuntuHardwareAlarm API
+ * \brief a WakeupTimer implemented with g_timeout_add()
*/
-class UhaWakeupTimer: public WakeupTimer
+class PowerdWakeupTimer: public WakeupTimer
{
public:
- UhaWakeupTimer(const std::shared_ptr<Clock>&);
- ~UhaWakeupTimer();
- void set_wakeup_time (const DateTime&);
+ PowerdWakeupTimer(const std::shared_ptr<Clock>&);
+ ~PowerdWakeupTimer();
+ void set_wakeup_time(const DateTime&);
core::Signal<>& timeout();
- static bool is_supported();
-
private:
- UhaWakeupTimer(const UhaWakeupTimer&) =delete;
- UhaWakeupTimer& operator= (const UhaWakeupTimer&) =delete;
+ PowerdWakeupTimer(const PowerdWakeupTimer&) =delete;
+ PowerdWakeupTimer& operator=(const PowerdWakeupTimer&) =delete;
class Impl;
std::unique_ptr<Impl> p;
};
@@ -61,4 +59,4 @@ private:
} // namespace indicator
} // namespace unity
-#endif // INDICATOR_DATETIME_WAKEUP_TIMER_UHA_H
+#endif // INDICATOR_DATETIME_WAKEUP_TIMER_MAINLOOP_H
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a466a48..e583334 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -35,10 +35,8 @@ set (SERVICE_CXX_SOURCES
timezone-geoclue.cpp
timezones-live.cpp
utils.c
- wakeup-timer-mainloop.cpp)
-if (HAVE_UBUNTU_HW_ALARM_H)
- set (SERVICE_CXX_SOURCES ${SERVICE_CXX_SOURCES} wakeup-timer-uha.cpp)
-endif ()
+ wakeup-timer-mainloop.cpp
+ wakeup-timer-powerd.cpp)
# generated sources
include (GdbusCodegen)
diff --git a/src/main.cpp b/src/main.cpp
index eb90020..48d3d20 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -31,13 +31,9 @@
#include <datetime/state.h>
#include <datetime/timezone-file.h>
#include <datetime/timezones-live.h>
-#include <datetime/wakeup-timer-mainloop.h>
+#include <datetime/wakeup-timer-powerd.h>
#include <notifications/notifications.h>
-#ifdef HAVE_UBUNTU_HW_ALARM_H
- #include <datetime/wakeup-timer-uha.h>
-#endif
-
#include <glib/gi18n.h> // bindtextdomain()
#include <gio/gio.h>
@@ -66,20 +62,6 @@ namespace
return engine;
}
- std::shared_ptr<WakeupTimer> create_wakeup_timer(const std::shared_ptr<Clock>& clock)
- {
- std::shared_ptr<WakeupTimer> wakeup_timer;
-
-#ifdef HAVE_UBUNTU_HW_ALARM_H
- if (UhaWakeupTimer::is_supported()) // prefer to use the platform API
- wakeup_timer = std::make_shared<UhaWakeupTimer>(clock);
- else
-#endif
- wakeup_timer = std::make_shared<MainloopWakeupTimer>(clock);
-
- return wakeup_timer;
- }
-
std::shared_ptr<State> create_state(const std::shared_ptr<Engine>& engine,
const std::shared_ptr<Timezone>& tz)
{
@@ -120,7 +102,7 @@ namespace
upcoming_planner->date().set(now);
});
- auto wakeup_timer = create_wakeup_timer(clock);
+ auto wakeup_timer = std::make_shared<PowerdWakeupTimer>(clock);
return std::make_shared<SimpleAlarmQueue>(clock, upcoming_planner, wakeup_timer);
}
}
diff --git a/src/wakeup-timer-powerd.cpp b/src/wakeup-timer-powerd.cpp
new file mode 100644
index 0000000..b3dcec8
--- /dev/null
+++ b/src/wakeup-timer-powerd.cpp
@@ -0,0 +1,304 @@
+/*
+ * Copyright 2014 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ * Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include <datetime/clock.h>
+#include <datetime/wakeup-timer-powerd.h>
+
+#include <notifications/dbus-shared.h> // BUS_POWERD_NAME
+
+#include <memory> // std::shared_ptr
+
+namespace unity {
+namespace indicator {
+namespace datetime {
+
+/***
+****
+***/
+
+class PowerdWakeupTimer::Impl
+{
+public:
+
+ Impl(const std::shared_ptr<Clock>& clock):
+ m_clock(clock),
+ m_cancellable(g_cancellable_new())
+ {
+ g_bus_get(G_BUS_TYPE_SYSTEM, m_cancellable, on_bus_ready, this);
+ }
+
+ ~Impl()
+ {
+ clear_current_cookie();
+
+ g_cancellable_cancel(m_cancellable);
+ g_clear_object(&m_cancellable);
+
+ if (m_sub_id)
+ g_dbus_connection_signal_unsubscribe(m_bus.get(), m_sub_id);
+
+ if (m_watch_tag)
+ g_bus_unwatch_name(m_watch_tag);
+ }
+
+ void set_wakeup_time(const DateTime& d)
+ {
+ m_wakeup_time = d;
+ update_cookie();
+ }
+
+ core::Signal<>& timeout() { return m_timeout; }
+
+private:
+
+ void emit_timeout() { return m_timeout(); }
+
+ static void on_bus_ready(GObject * /*unused*/,
+ GAsyncResult * res,
+ gpointer gself)
+ {
+ GError * error;
+ GDBusConnection * bus;
+
+ error = nullptr;
+ bus = g_bus_get_finish(res, &error);
+ if (bus == nullptr)
+ {
+ if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ g_warning("%s Couldn't get system bus: %s", G_STRLOC, error->message);
+ }
+ else
+ {
+ static_cast<Impl*>(gself)->init_bus(bus);
+ }
+
+ g_clear_object(&bus);
+ g_clear_error(&error);
+ }
+
+ void init_bus(GDBusConnection* connection)
+ {
+ m_bus.reset(G_DBUS_CONNECTION(g_object_ref(G_OBJECT(connection))),
+ [](GDBusConnection *c){g_object_unref(G_OBJECT(c));});
+
+ m_sub_id = g_dbus_connection_signal_subscribe(m_bus.get(),
+ BUS_POWERD_NAME,
+ BUS_POWERD_INTERFACE,
+ "Wakeup",
+ BUS_POWERD_PATH,
+ nullptr,
+ G_DBUS_SIGNAL_FLAGS_NONE,
+ on_wakeup_signal,
+ this, // userdata
+ nullptr); // userdata free
+
+ m_watch_tag = g_bus_watch_name_on_connection(m_bus.get(),
+ BUS_POWERD_NAME,
+ G_BUS_NAME_WATCHER_FLAGS_NONE,
+ on_name_appeared_static,
+ nullptr, // name-vanished,
+ this, // userdata
+ nullptr); // userdata free
+ }
+
+ static void
+ on_wakeup_signal(GDBusConnection * /*connection*/,
+ const gchar * sender_name,
+ const gchar * /*object_path*/,
+ const gchar * /*interface_name*/,
+ const gchar * signal_name,
+ GVariant * /*parameters*/,
+ gpointer gself)
+ {
+ g_debug("%s got DBus signal '%s' from '%s'", G_STRLOC, signal_name, sender_name);
+ static_cast<Impl*>(gself)->emit_timeout();
+ }
+
+ static void
+ on_name_appeared_static(GDBusConnection * /*connection*/,
+ const gchar * name,
+ const gchar * name_owner,
+ gpointer gself)
+ {
+ g_debug("%s %s owns %s now; let's ask for a new cookie", G_STRLOC, name, name_owner);
+ static_cast<Impl*>(gself)->update_cookie();
+ }
+
+ /***
+ **** requestWakeup
+ ***/
+
+ void update_cookie()
+ {
+ if (!m_bus)
+ return;
+
+ // if we've already got a cookie, clear it
+ clear_current_cookie();
+ g_warn_if_fail(m_cookie.empty());
+
+ // get a new cookie, if necessary
+ if (m_wakeup_time.is_set())
+ {
+ g_debug("%s calling %s::requestWakeup(%s)",
+ G_STRLOC, BUS_POWERD_NAME,
+ m_wakeup_time.format("%F %T").c_str());
+
+ auto args = g_variant_new("(st)",
+ GETTEXT_PACKAGE,
+ uint64_t(m_wakeup_time.to_unix()));
+
+ g_dbus_connection_call(m_bus.get(),
+ BUS_POWERD_NAME,
+ BUS_POWERD_PATH,
+ BUS_POWERD_INTERFACE,
+ "requestWakeup", // method_name
+ args,
+ G_VARIANT_TYPE("(s)"), // reply_type
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, // use default timeout
+ m_cancellable,
+ on_request_wakeup_done,
+ this);
+ }
+ }
+
+ static void on_request_wakeup_done(GObject * o,
+ GAsyncResult * res,
+ gpointer gself)
+ {
+ GError * error;
+ GVariant * ret;
+
+ error = nullptr;
+ ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(o), res, &error);
+ if (ret == nullptr)
+ {
+ if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ g_warning("%s Could not set hardware wakeup: %s", G_STRLOC, error->message);
+ }
+ else
+ {
+ const char* s = NULL;
+ g_variant_get(ret, "(&s)", &s);
+ g_debug("%s %s::requestWakeup() sent cookie %s",
+ G_STRLOC, BUS_POWERD_NAME, s);
+
+ auto& cookie = static_cast<Impl*>(gself)->m_cookie;
+ if (s != nullptr)
+ cookie = s;
+ else
+ cookie.clear();
+ }
+
+ // cleanup
+ g_clear_pointer(&ret, g_variant_unref);
+ g_clear_error(&error);
+ }
+
+ /***
+ **** clearWakeup
+ ***/
+
+ void clear_current_cookie()
+ {
+ if (!m_cookie.empty())
+ {
+ g_debug("%s calling %s::clearWakeup(%s)",
+ G_STRLOC, BUS_POWERD_NAME, m_cookie.c_str());
+
+ g_dbus_connection_call(m_bus.get(),
+ BUS_POWERD_NAME,
+ BUS_POWERD_PATH,
+ BUS_POWERD_INTERFACE,
+ "clearWakeup", // method_name
+ g_variant_new("(s)", m_cookie.c_str()),
+ nullptr, // no response type
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, // use default timeout
+ nullptr, // cancellable
+ on_clear_wakeup_done,
+ nullptr);
+ m_cookie.clear();
+ }
+ }
+
+ // this is only here to log errors
+ static void on_clear_wakeup_done(GObject * o,
+ GAsyncResult * res,
+ gpointer /*unused*/)
+ {
+ GError * error;
+ GVariant * ret;
+
+ error = nullptr;
+ ret = g_dbus_connection_call_finish(G_DBUS_CONNECTION(o), res, &error);
+ if (!ret && !g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ g_warning("%s Couldn't clear hardware wakeup: %s", G_STRLOC, error->message);
+
+ // cleanup
+ g_clear_pointer(&ret, g_variant_unref);
+ g_clear_error(&error);
+ }
+
+ /***
+ ****
+ ***/
+
+ core::Signal<> m_timeout;
+ const std::shared_ptr<Clock>& m_clock;
+ DateTime m_wakeup_time;
+
+ std::shared_ptr<GDBusConnection> m_bus;
+ GCancellable * m_cancellable = nullptr;
+ std::string m_cookie;
+ guint m_watch_tag = 0;
+ guint m_sub_id = 0;
+};
+
+/***
+****
+***/
+
+PowerdWakeupTimer::PowerdWakeupTimer(const std::shared_ptr<Clock>& clock):
+ p(new Impl(clock))
+{
+}
+
+PowerdWakeupTimer::~PowerdWakeupTimer()
+{
+}
+
+void PowerdWakeupTimer::set_wakeup_time(const DateTime& d)
+{
+ p->set_wakeup_time(d);
+}
+
+core::Signal<>& PowerdWakeupTimer::timeout()
+{
+ return p->timeout();
+}
+
+/***
+****
+***/
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity
diff --git a/src/wakeup-timer-uha.cpp b/src/wakeup-timer-uha.cpp
deleted file mode 100644
index 437eda2..0000000
--- a/src/wakeup-timer-uha.cpp
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright 2014 Canonical Ltd.
- *
- * This program is free software: you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 3, as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranties of
- * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Authors:
- * Charles Kerr <charles.kerr@canonical.com>
- */
-
-#include <datetime/wakeup-timer-uha.h>
-
-#include <ubuntu/hardware/alarm.h>
-
-#include <glib.h>
-
-#include <unistd.h>
-
-#include <ctime> // struct timespec
-#include <mutex>
-#include <thread>
-
-namespace unity {
-namespace indicator {
-namespace datetime {
-
-/***
-****
-***/
-
-class UhaWakeupTimer::Impl
-{
-
-public:
-
- Impl(const std::shared_ptr<Clock>& clock):
- m_clock(clock),
- m_hardware_alarm(u_hardware_alarm_create())
- {
- // fire up a worker thread that initially just sleeps
- set_wakeup_time_to_the_distant_future();
- m_thread = std::move(std::thread([&](){threadfunc();}));
- }
-
- ~Impl()
- {
- // tell the worker thread to wake up and exit
- m_yielding = true;
- set_wakeup_time(m_clock->localtime().add_full(0,0,0,0,0,0.1));
-
- // wait for it to happen
- if (m_thread.joinable())
- m_thread.join();
-
- g_idle_remove_by_data(this);
-
- u_hardware_alarm_unref(m_hardware_alarm);
- }
-
- void set_wakeup_time(const DateTime& d)
- {
- g_debug("%s %s", G_STRLOC, G_STRFUNC);
- std::lock_guard<std::recursive_mutex> lg(m_mutex);
-
- const auto wakeup_time = d.to_unix();
-
- // simple sanity check: don't try to wait for something that's already passed
- const auto now = m_clock->localtime().to_unix();
- g_return_if_fail (wakeup_time >= now);
-
- struct timespec sleep_interval;
- sleep_interval.tv_sec = wakeup_time;
- sleep_interval.tv_nsec = 0;
- g_debug("%s %s setting hardware wakeup time to %s (%zu seconds from now)",
- G_STRLOC, G_STRFUNC,
- d.format("%F %T").c_str(),
- (size_t)(wakeup_time - now));
- u_hardware_alarm_set_relative_to_with_behavior(m_hardware_alarm,
- U_HARDWARE_ALARM_TIME_REFERENCE_RTC,
- U_HARDWARE_ALARM_SLEEP_BEHAVIOR_WAKEUP_DEVICE,
- &sleep_interval);
- }
-
- core::Signal<>& timeout() { return m_timeout; }
-
-private:
-
- void set_wakeup_time_to_the_distant_future()
- {
- const auto tomorrow = m_clock->localtime().add_full(0,0,1,0,0,0);
- set_wakeup_time(tomorrow);
- }
-
- static gboolean kick_idle (gpointer gself)
- {
- static_cast<Impl*>(gself)->m_timeout();
-
- return G_SOURCE_REMOVE;
- }
-
- void threadfunc()
- {
- while (!m_yielding)
- {
- // wait for the next hw alarm
- UHardwareAlarmWaitResult wait_result;
- g_debug ("calling wait_for_next_alarm");
- auto rc = u_hardware_alarm_wait_for_next_alarm(m_hardware_alarm, &wait_result);
- g_return_if_fail (rc == U_STATUS_SUCCESS);
-
- // set a long wakeup interval for the next iteration of the loop.
- // if there's another Appointment queued up by the Planner,
- // our timeout() listener will call set_wakeup_time() to set the
- // real wakeup interval.
- set_wakeup_time_to_the_distant_future();
-
- // delegate the kick back to the main thread
- g_idle_add (kick_idle, this);
- }
- }
-
- core::Signal<> m_timeout;
- std::recursive_mutex m_mutex;
- bool m_yielding = false;
- const std::shared_ptr<Clock>& m_clock;
- UHardwareAlarm m_hardware_alarm = nullptr;
- std::thread m_thread;
-};
-
-/***
-****
-***/
-
-UhaWakeupTimer::UhaWakeupTimer(const std::shared_ptr<Clock>& clock):
- p(new Impl(clock))
-{
-}
-
-UhaWakeupTimer::~UhaWakeupTimer()
-{
-}
-
-bool UhaWakeupTimer::is_supported()
-{
- auto hw_alarm = u_hardware_alarm_create();
- g_debug ("%s hardware alarm %p", G_STRFUNC, hw_alarm);
- return hw_alarm != nullptr;
-}
-
-void UhaWakeupTimer::set_wakeup_time(const DateTime& d)
-{
- p->set_wakeup_time(d);
-}
-
-core::Signal<>& UhaWakeupTimer::timeout()
-{
- return p->timeout();
-}
-
-/***
-****
-***/
-
-} // namespace datetime
-} // namespace indicator
-} // namespace unity