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authorCharles Kerr <charles.kerr@canonical.com>2014-08-18 23:08:38 -0500
committerCharles Kerr <charles.kerr@canonical.com>2014-08-18 23:08:38 -0500
commita144696c42e5048083abbe6a08528ed57526fa07 (patch)
tree87031c44d7b8861055cb7c3cdb8df0a9b14aa10a /src/wakeup-timer-uha.cpp
parent139454ce848864a96db9ff1acf0552060ca2bbd8 (diff)
parent2c77b7e18df874428b0ec9d65a6b3386915f60a3 (diff)
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use powerd for hardware wakeups
Diffstat (limited to 'src/wakeup-timer-uha.cpp')
-rw-r--r--src/wakeup-timer-uha.cpp175
1 files changed, 0 insertions, 175 deletions
diff --git a/src/wakeup-timer-uha.cpp b/src/wakeup-timer-uha.cpp
deleted file mode 100644
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--- 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