X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=Scheduler%2FScheduler.cc;h=9ea0e481ea8f57df5f98fe04ae167e537c557761;hb=81f84badf27b66dbadec9890646ca1193e998505;hp=2d137819911346fa8b75f71982556d0d770cee2a;hpb=03516e8371a90f908ce54dedb3c874eec7dd08ff;p=senf.git

diff --git a/Scheduler/Scheduler.cc b/Scheduler/Scheduler.cc
index 2d13781..9ea0e48 100644
--- a/Scheduler/Scheduler.cc
+++ b/Scheduler/Scheduler.cc
@@ -35,58 +35,154 @@
 //#include "Scheduler.ih"
 
 // Custom includes
-#include "SignalEvent.hh"
 
 #define prefix_
 ///////////////////////////////cc.p////////////////////////////////////////
 
-prefix_ void senf::Scheduler::process()
+namespace {
+    bool terminate_ (false);
+    bool running_ (false);
+}
+
+prefix_ void senf::scheduler::terminate()
+{
+    terminate_ = true;
+}
+
+prefix_ bool senf::scheduler::running()
 {
+    return running_;
+}
+
+prefix_ senf::ClockService::clock_type senf::scheduler::now()
+{
+    return running() ? eventTime() : ClockService::now();
+}
+
+namespace {
+    
+    // We don't want try { } catch(...) { ... throw; } since that will make debugging more
+    // difficult: the stack backtrace for an unexpected exception would always end here.
+    struct SchedulerScopedInit
+    {
+        SchedulerScopedInit() 
+            {
+                senf::scheduler::detail::FIFORunner::instance().startWatchdog();
+                senf::scheduler::detail::SignalDispatcher::instance().unblockSignals();
+                senf::scheduler::detail::TimerDispatcher::instance().enable();
+                running_ = true;
+            }
+
+        ~SchedulerScopedInit()
+            {
+                senf::scheduler::detail::TimerDispatcher::instance().disable();
+                senf::scheduler::detail::SignalDispatcher::instance().blockSignals();
+                senf::scheduler::detail::FIFORunner::instance().stopWatchdog();
+                running_ = false;
+            }
+    };
+}
+
+prefix_ void senf::scheduler::process()
+{
+    SchedulerScopedInit initScheduler;
     terminate_ = false;
-    while(! terminate_ && ! (scheduler::detail::FdDispatcher::instance().empty() &&
-                             scheduler::detail::TimerDispatcher::instance().empty() &&
-                             scheduler::detail::FileDispatcher::instance().empty())) {
-        scheduler::detail::SignalDispatcher::instance().unblockSignals();
-        scheduler::detail::TimerDispatcher::instance().unblockSignals();
-        scheduler::FdManager::instance().processOnce();
-        scheduler::detail::TimerDispatcher::instance().blockSignals();
-        scheduler::detail::SignalDispatcher::instance().blockSignals();
-        scheduler::detail::FileDispatcher::instance().prepareRun();
-        scheduler::FIFORunner::instance().run();
+    running_ = true;
+    detail::TimerDispatcher::instance().reschedule();
+    while(! terminate_ && ! (detail::FdDispatcher::instance().empty() &&
+                             detail::TimerDispatcher::instance().empty() &&
+                             detail::FileDispatcher::instance().empty())) {
+        detail::FdManager::instance().processOnce();
+        detail::FileDispatcher::instance().prepareRun();
+        detail::EventHookDispatcher::instance().prepareRun();
+        detail::TimerDispatcher::instance().prepareRun();
+        detail::FIFORunner::instance().run();
+        detail::TimerDispatcher::instance().reschedule();
     }
 }
 
-prefix_ void senf::Scheduler::restart()
+prefix_ void senf::scheduler::restart()
 {
-    scheduler::FdManager* fdm (&scheduler::FdManager::instance());
-    scheduler::FIFORunner* ffr (&scheduler::FIFORunner::instance());
-    scheduler::detail::FdDispatcher* fdd (&scheduler::detail::FdDispatcher::instance());
-    scheduler::detail::TimerDispatcher* td (&scheduler::detail::TimerDispatcher::instance());
-    scheduler::detail::SignalDispatcher* sd (&scheduler::detail::SignalDispatcher::instance());
-    scheduler::detail::FileDispatcher* fld (&scheduler::detail::FileDispatcher::instance());
-    
+    detail::FdManager*            fdm (&detail::FdManager::instance());
+    detail::FIFORunner*           ffr (&detail::FIFORunner::instance());
+    detail::FdDispatcher*         fdd (&detail::FdDispatcher::instance());
+    detail::TimerDispatcher*      tdd (&detail::TimerDispatcher::instance());
+    detail::SignalDispatcher*     sdd (&detail::SignalDispatcher::instance());
+    detail::FileDispatcher*       fld (&detail::FileDispatcher::instance());
+    detail::EventHookDispatcher*  eed (&detail::EventHookDispatcher::instance());
+
+    eed->~EventHookDispatcher();
     fld->~FileDispatcher();
-    sd->~SignalDispatcher();
-    td->~TimerDispatcher();
+    sdd->~SignalDispatcher();
+    tdd->~TimerDispatcher();
     fdd->~FdDispatcher();
     ffr->~FIFORunner();
     fdm->~FdManager();
     
-    new (fdm) scheduler::FdManager();
-    new (ffr) scheduler::FIFORunner();
-    new (fdd) scheduler::detail::FdDispatcher();
-    new (td) scheduler::detail::TimerDispatcher();
-    new (sd) scheduler::detail::SignalDispatcher();
-    new (fld) scheduler::detail::FileDispatcher();
+    new (fdm) detail::FdManager();
+    new (ffr) detail::FIFORunner();
+    new (fdd) detail::FdDispatcher();
+    new (tdd) detail::TimerDispatcher();
+    new (sdd) detail::SignalDispatcher();
+    new (fld) detail::FileDispatcher();
+    new (eed) detail::EventHookDispatcher();
+}
+
+prefix_ bool senf::scheduler::empty()
+{
+    return detail::FdDispatcher::instance().empty() 
+        && detail::TimerDispatcher::instance().empty()
+        && detail::FileDispatcher::instance().empty()
+        && detail::SignalDispatcher::instance().empty()
+        && detail::EventHookDispatcher::instance().empty();
+}
+
+prefix_ void senf::scheduler::hiresTimers()
+{
+#ifdef HAVE_TIMERFD
+    if (haveScalableHiresTimers())
+        detail::TimerDispatcher::instance().timerSource(
+            std::auto_ptr<detail::TimerSource>(new detail::TimerFDTimerSource()));
+    else
+#endif
+        detail::TimerDispatcher::instance().timerSource(
+            std::auto_ptr<detail::TimerSource>(new detail::POSIXTimerSource()));
 }
 
 ///////////////////////////////////////////////////////////////////////////
-// senf::SchedulerLogTimeSource
+// senf::schedulerLogTimeSource
 
-prefix_ senf::log::time_type senf::SchedulerLogTimeSource::operator()()
+prefix_ senf::log::time_type senf::scheduler::LogTimeSource::operator()()
     const
 {
-    return Scheduler::instance().eventTime();
+    return eventTime();
+}
+
+///////////////////////////////////////////////////////////////////////////
+// senf::scheduler::BlockSignals
+
+prefix_ senf::scheduler::BlockSignals::BlockSignals(bool initiallyBlocked)
+    : blocked_ (false)
+{
+    ::sigfillset(&allSigs_);
+    if (initiallyBlocked)
+        block();
+}
+
+prefix_ void senf::scheduler::BlockSignals::block()
+{
+    if (blocked_)
+        return;
+    ::sigprocmask(SIG_BLOCK, &allSigs_, &savedSigs_);
+    blocked_ = true;
+}
+
+prefix_ void senf::scheduler::BlockSignals::unblock()
+{
+    if (!blocked_)
+        return;
+    ::sigprocmask(SIG_SETMASK, &savedSigs_, 0);
+    blocked_ = false;
 }
 
 ///////////////////////////////cc.e////////////////////////////////////////