// Custom includes
#include <signal.h>
#include <time.h>
+#include <boost/lambda/lambda.hpp>
#include "../Utils/Exception.hh"
#include "../Utils/senfassert.hh"
+#include "../Utils/ScopeExit.hh"
//#include "FIFORunner.mpp"
#define prefix_
///////////////////////////////cc.p////////////////////////////////////////
prefix_ senf::scheduler::detail::FIFORunner::FIFORunner()
- : tasks_ (), next_ (tasks_.end()), watchdogMs_ (1000), watchdogCount_(0), hangCount_ (0)
+ : tasks_ (), next_ (tasks_.end()), watchdogRunning_ (false), watchdogMs_ (1000),
+ watchdogCount_(0), hangCount_ (0)
{
struct sigevent ev;
::memset(&ev, 0, sizeof(ev));
signal(SIGURG, SIG_DFL);
}
+prefix_ void senf::scheduler::detail::FIFORunner::startWatchdog()
+{
+ struct itimerspec timer;
+ ::memset(&timer, 0, sizeof(timer));
+
+ timer.it_interval.tv_sec = watchdogMs_ / 1000;
+ timer.it_interval.tv_nsec = (watchdogMs_ % 1000) * 1000000ul;
+ timer.it_value.tv_sec = timer.it_interval.tv_sec;
+ timer.it_value.tv_nsec = timer.it_interval.tv_nsec;
+
+ if (timer_settime(watchdogId_, 0, &timer, 0) < 0)
+ SENF_THROW_SYSTEM_EXCEPTION("timer_settime()");
+
+ watchdogRunning_ = true;
+}
+
+prefix_ void senf::scheduler::detail::FIFORunner::stopWatchdog()
+{
+ struct itimerspec timer;
+ ::memset(&timer, 0, sizeof(timer));
+
+ if (timer_settime(watchdogId_, 0, &timer, 0) < 0)
+ SENF_THROW_SYSTEM_EXCEPTION("timer_settime()");
+
+ watchdogRunning_ = false;
+}
+
// At the moment, the FIFORunner is not very efficient with many non-runnable tasks since the
// complete list of tasks is traversed on each run().
//
prefix_ void senf::scheduler::detail::FIFORunner::run()
{
- struct itimerspec timer;
- timer.it_interval.tv_sec = watchdogMs_ / 1000;
- timer.it_interval.tv_nsec = (watchdogMs_ % 1000) * 1000000ul;
- timer.it_value.tv_sec = timer.it_interval.tv_sec;
- timer.it_value.tv_nsec = timer.it_interval.tv_nsec;
+ TaskList::iterator f (tasks_.begin());
+ TaskList::iterator l (TaskList::current(highPriorityEnd_));
+ run(f, l);
- if (timer_settime(watchdogId_, 0, &timer, 0) < 0)
- SENF_THROW_SYSTEM_EXCEPTION("timer_settime()");
-
- timer.it_interval.tv_sec = 0;
- timer.it_interval.tv_nsec = 0;
- timer.it_value.tv_sec = 0;
- timer.it_value.tv_nsec = 0;
-
- try {
- TaskList::iterator f (tasks_.begin());
- TaskList::iterator l (TaskList::current(highPriorityEnd_));
- run(f, l);
-
- f = l; ++f;
- l = TaskList::current(normalPriorityEnd_);
- run(f, l);
+ f = l; ++f;
+ l = TaskList::current(normalPriorityEnd_);
+ run(f, l);
- f = l; ++f;
- l = tasks_.end();
- run(f, l);
- }
- catch(...) {
- timer_settime(watchdogId_, 0, &timer, 0);
- throw;
- }
-
- if (timer_settime(watchdogId_, 0, &timer, 0) < 0)
- SENF_THROW_SYSTEM_EXCEPTION("timer_settime()");
+ f = l; ++f;
+ l = tasks_.end();
+ run(f, l);
}
-
prefix_ void senf::scheduler::detail::FIFORunner::run(TaskList::iterator f, TaskList::iterator l)
{
if (f == l)
tasks_.insert(l, null);
TaskList::iterator end (TaskList::current(null));
next_ = f;
- try {
- while (next_ != end) {
- TaskInfo & task (*next_);
- if (task.runnable_) {
- task.runnable_ = false;
- runningName_ = task.name();
-# ifdef SENF_DEBUG
- runningBacktrace_ = task.backtrace_;
-# endif
- TaskList::iterator i (next_);
- ++ next_;
- tasks_.splice(l, tasks_, i);
- watchdogCount_ = 1;
- task.run();
- }
- else
- ++ next_;
+
+ using namespace boost::lambda;
+ ScopeExit atExit ((
+ var(watchdogCount_) = 0,
+ var(next_) = l
+ ));
+
+ while (next_ != end) {
+ TaskInfo & task (*next_);
+ if (task.runnable_) {
+ task.runnable_ = false;
+ runningName_ = task.name();
+# ifdef SENF_DEBUG
+ runningBacktrace_ = task.backtrace_;
+# endif
+ TaskList::iterator i (next_);
+ ++ next_;
+ tasks_.splice(l, tasks_, i);
+ watchdogCount_ = 1;
+ task.run();
}
+ else
+ ++ next_;
}
- catch (...) {
- watchdogCount_ = 0;
- next_ = l;
- throw;
- }
- watchdogCount_ = 0;
- next_ = l;
}
prefix_ senf::scheduler::detail::FIFORunner::TaskList::iterator