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static const char *RcsId = "$Id: dserverlock.cpp 22213 2013-03-07 14:32:56Z taurel $\n$Name$";
//+=============================================================================
//
// file : dserverlock.cpp
//
// description : C++ source for the DServer class and its commands.
// The class is derived from Device. It represents the
// CORBA servant object which will be accessed from the
// network. All commands which can be executed on a
// DServer object are implemented in this file.
//
// project : TANGO
//
// author(s) : E.Taurel
//
// Copyright (C) : 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
// European Synchrotron Radiation Facility
// BP 220, Grenoble 38043
// FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Tango is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Tango. If not, see <http://www.gnu.org/licenses/>.
//
// $Revision: 22213 $
//
//-=============================================================================
#if HAVE_CONFIG_H
#include <ac_config.h>
#endif
#include <tango.h>
namespace Tango
{
//+----------------------------------------------------------------------------
//
// method : DServer::lock_device()
//
// description : command to lock device
//
// args: - in_data : Pointer to a structure with:
// 1 - Name of the device(s) to be locked
// 2 - Lock validity
//
//-----------------------------------------------------------------------------
void DServer::lock_device(const Tango::DevVarLongStringArray *in_data)
{
NoSyncModelTangoMonitor mon(this);
string dev_name(in_data->svalue[0]);
int lock_validity = in_data->lvalue[0];
cout4 << "In lock_device command for device " << dev_name << ", lock validity = " << lock_validity << endl;
//
// Get client identification
//
Tango::client_addr *cl = get_client_ident();
if (cl == NULL)
{
Except::throw_exception((const char*)API_CantGetClientIdent,
(const char*)"Cannot retrieve client identification",
(const char*)"DServer::lock_device");
}
cout4 << "Client identification = " << *cl << endl;
if (cl->client_ident == false)
{
Except::throw_exception((const char*)"API_ClientTooOld",
(const char*)"Your client cannot lock devices. You are using a too old Tango release. Please, update to tango V7 or more",
(const char*)"DServer::lock_device");
}
//
// Transform device name to lower case
//
Tango::Util *tg = Tango::Util::instance();
string local_dev_name(get_name());
transform(local_dev_name.begin(),local_dev_name.end(),local_dev_name.begin(),::tolower);
string d_name_lower(dev_name);
transform(d_name_lower.begin(),d_name_lower.end(),d_name_lower.begin(),::tolower);
//
// Refuse to lock the admin device
//
if (d_name_lower == local_dev_name)
{
Except::throw_exception((const char *)API_DeviceUnlockable,
(const char *)"Impossible to lock device server administration device",
(const char *)"DServer::lock_device");
}
//
// Get device ptr
//
DeviceImpl *the_dev;
the_dev = tg->get_device_by_name(dev_name);
//
// Refuse to lock database device
//
string &cl_name = the_dev->get_device_class()->get_name();
if (::strcmp(cl_name.c_str(),DATABASE_CLASS) == 0)
{
Except::throw_exception((const char *)API_DeviceUnlockable,
(const char *)"Impossible to lock database device",
(const char *)"DServer::lock_device");
}
//
// Mark the device as locked
//
the_dev->lock(cl,lock_validity);
}
//+----------------------------------------------------------------------------
//
// method : DServer::un_lock_device()
//
// description : command to un lock a device
//
// args: - dev_name : The device name
//
//-----------------------------------------------------------------------------
Tango::DevLong DServer::un_lock_device(const Tango::DevVarLongStringArray *in_data)
{
NoSyncModelTangoMonitor mon(this);
cout4 << "In un_lock_device command for device " << in_data->svalue[0] << endl;
//
// Get client identification
//
Tango::client_addr *cl = get_client_ident();
if (cl == NULL)
{
Except::throw_exception((const char*)API_CantGetClientIdent,
(const char*)"Cannot retrieve client identification",
(const char*)"DServer::un_lock_device");
}
cout4 << "Client identification = " << *cl << endl;
if ((cl->client_ident == false) && (in_data->lvalue[0] == 0))
{
Except::throw_exception((const char*)"API_ClientTooOld",
(const char*)"Your client cannot un-lock devices. You are using a too old Tango release. Please, update to tango V7 or more",
(const char*)"DServer::un_lock_device");
}
//
// Get the device and unlock it
//
DevLong ctr = 0;
Tango::Util *tg = Tango::Util::instance();
for (unsigned int loop = 0;loop < in_data->svalue.length();++loop)
{
string d_name(in_data->svalue[loop]);
if (d_name == get_name())
ctr = ext->lock_ctr;
else
{
DeviceImpl *the_dev = tg->get_device_by_name(d_name);
ctr = the_dev->unlock((bool)in_data->lvalue[0]);
}
if (loop > 0)
ctr = 0;
}
return ctr;
}
//+----------------------------------------------------------------------------
//
// method : DServer::re_lock_devices()
//
// description : command to re-lock devices
//
// args: - dev_name_list : Name of the device(s) to be re-locked
//
//-----------------------------------------------------------------------------
void DServer::re_lock_devices(const Tango::DevVarStringArray *dev_name_list)
{
NoSyncModelTangoMonitor mon(this);
cout4 << "In re_lock_devices command" << endl;
CORBA::ULong loop;
CORBA::ULong nb_dev = dev_name_list->length();
for (loop = 0;loop < nb_dev;loop++)
cout4 << "Device to re-lock: " << (*dev_name_list)[loop] << endl;
//
// Get client identification
//
Tango::client_addr *cl = get_client_ident();
if (cl == NULL)
{
Except::throw_exception((const char*)API_CantGetClientIdent,
(const char*)"Cannot retrieve client identification",
(const char*)"DServer::re_lock_devices");
}
cout4 << "Client identification = " << *cl << endl;
if (cl->client_ident == false)
{
Except::throw_exception((const char*)"API_ClientTooOld",
(const char*)"Your client cannot re_lock devices. You are using a too old Tango release. Please, update to tango V7 or more",
(const char*)"DServer::re_lock_devices");
}
//
// ReLock the devices
// If we have an error in this loop, memorize it and throw the exception at the
// end of the loop
//
Tango::Util *tg = Tango::Util::instance();
DevErrorList errors;
long nb_error = 0;
for (loop = 0;loop < nb_dev;loop++)
{
string d_name((*dev_name_list)[loop]);
//
// Get device ptr
//
DeviceImpl *the_dev = NULL;
try
{
the_dev = tg->get_device_by_name(d_name);
}
catch (Tango::DevFailed &e)
{
errors.length(nb_error + 1);
errors[nb_error].desc = CORBA::string_dup(e.errors[0].desc.in());
errors[nb_error].reason = CORBA::string_dup(e.errors[0].reason.in());
errors[nb_error].origin = CORBA::string_dup(e.errors[0].origin.in());
errors[nb_error].severity = e.errors[0].severity;
nb_error++;
}
//
// ReLock the device
//
try
{
the_dev->relock(cl);
}
catch (Tango::DevFailed &e)
{
errors.length(nb_error + 1);
errors[nb_error].desc = CORBA::string_dup(e.errors[0].desc.in());
errors[nb_error].reason = CORBA::string_dup(e.errors[0].reason.in());
errors[nb_error].origin = CORBA::string_dup(e.errors[0].origin.in());
errors[nb_error].severity = e.errors[0].severity;
nb_error++;
}
}
//
// Throw the exception if we had one during the loop
//
if (nb_error != 0)
{
throw Tango::DevFailed(errors);
}
}
//+----------------------------------------------------------------------------
//
// method : DServer::dev_lock_status()
//
// description : command to get device lock status
//
// args: - dev_name : The device name
//
//-----------------------------------------------------------------------------
Tango::DevVarLongStringArray *DServer::dev_lock_status(Tango::ConstDevString dev_name)
{
NoSyncModelTangoMonitor mon(this);
cout4 << "In dev_lock_status command for device " << dev_name << endl;
//
// Get the device and get its lock status
//
string d_name(dev_name);
Tango::Util *tg = Tango::Util::instance();
DeviceImpl *the_dev = tg->get_device_by_name(d_name);
return the_dev->lock_status();
}
} // End of Tango namespace
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