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/*
* SPDX-FileCopyrightText: All Contributors to the PyTango project
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#include "precompiled_header.hpp"
#include "defs.h"
#include "pytgutils.h"
#include "server/device_class.h"
namespace PyTango
{
class AutoTangoMonitor
{
Tango::AutoTangoMonitor *mon;
Tango::DeviceImpl *dev;
Tango::DeviceClass *klass;
public:
AutoTangoMonitor(Tango::DeviceImpl *dev_arg) :
mon(),
dev(),
klass()
{
dev = dev_arg;
}
AutoTangoMonitor(CppDeviceClass *klass_arg) :
mon(),
dev(),
klass()
{
klass = klass_arg;
}
void acquire()
{
if(mon != NULL)
{
return;
}
if(dev != NULL)
{
AutoPythonAllowThreads no_gil;
mon = new Tango::AutoTangoMonitor(dev);
}
else if(klass != NULL)
{
AutoPythonAllowThreads no_gil;
mon = new Tango::AutoTangoMonitor(klass);
}
}
void release()
{
if(mon != NULL)
{
delete mon;
mon = NULL;
}
}
~AutoTangoMonitor()
{
release();
}
};
class AutoTangoAllowThreads
{
public:
AutoTangoAllowThreads(Tango::DeviceImpl *dev) :
count(0)
{
Tango::Util *util = Tango::Util::instance();
Tango::SerialModel ser = util->get_serial_model();
switch(ser)
{
case Tango::BY_DEVICE:
mon = &(dev->get_dev_monitor());
break;
case Tango::BY_CLASS:
// mon = &(dev->device_class->ext->only_one);
break;
case Tango::BY_PROCESS:
// mon = &(util->ext->only_one);
break;
default:
mon = NULL;
}
release();
}
void acquire()
{
if(mon == NULL)
{
return;
}
AutoPythonAllowThreads no_gil;
for(int i = 0; i < count; ++i)
{
mon->get_monitor();
}
}
protected:
void release()
{
if(mon == NULL)
{
return;
}
int cur_thread = omni_thread::self()->id();
int mon_thread = mon->get_locking_thread_id();
int lock_count = mon->get_locking_ctr();
// do something only if the monitor was taken by the current thread
if((mon_thread == cur_thread) && lock_count)
{
while(lock_count > 0)
{
mon->rel_monitor();
lock_count = mon->get_locking_ctr();
count++;
}
}
else
{
mon = NULL;
}
}
private:
Tango::TangoMonitor *mon{nullptr};
int count;
omni_thread::ensure_self auto_self;
};
} // namespace PyTango
void export_auto_tango_monitor()
{
bopy::class_<PyTango::AutoTangoMonitor, boost::noncopyable>("AutoTangoMonitor", bopy::init<Tango::DeviceImpl *>())
.def(bopy::init<CppDeviceClass *>())
.def("_acquire", &PyTango::AutoTangoMonitor::acquire)
.def("_release", &PyTango::AutoTangoMonitor::release);
bopy::class_<PyTango::AutoTangoAllowThreads, boost::noncopyable>("AutoTangoAllowThreads",
bopy::init<Tango::DeviceImpl *>())
.def("_acquire", &PyTango::AutoTangoAllowThreads::acquire);
;
}
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