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event.cpp
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//====================================================================================================================
//
// file : event.cpp
//
// description : C++ classes for implementing the event server and client singleton classes - EventConsumer.
//
// author(s) : A.Gotz (goetz@esrf.fr)
//
// original : 7 April 2003
//
// Copyright (C) : 2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
// 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: 30155 $
//
//
//====================================================================================================================
#include <tango.h>
#include <eventconsumer.h>
#include <event.tpp>
#include <stdio.h>
#ifdef _TG_WINDOWS_
#include <sys/timeb.h>
#include <process.h>
#else
#include <unistd.h>
#include <sys/time.h>
#endif
using namespace CORBA;
namespace Tango {
EventConsumerKeepAliveThread *EventConsumer::keep_alive_thread = NULL;
std::map<std::string,std::string> EventConsumer::device_channel_map;
std::map<std::string,EventChannelStruct> EventConsumer::channel_map;
std::map<std::string,EventCallBackStruct> EventConsumer::event_callback_map;
ReadersWritersLock EventConsumer::map_modification_lock;
std::vector<EventNotConnected> EventConsumer::event_not_connected;
int EventConsumer::subscribe_event_id = 0;
std::vector<std::string> EventConsumer::env_var_fqdn_prefix;
std::map<std::string,std::string> EventConsumer::alias_map;
KeepAliveThCmd EventConsumer::cmd;
//+--------------------------------------------------------------------------------------------------------------------
//
// function :
// leavefunc
//
// description :
// This function will be executed at process exit or when the main returned. It has to be executed to properly
// shutdown and destroy the ORB used by as a server by the event system. The ORB loop is in EventConsumer thread.
// Therefore, get a reference to it, shutdown the ORB and wait until the thread exit. It also destroys the
// heartbeat filters
//
//--------------------------------------------------------------------------------------------------------------------
void leavefunc()
{
// flag to avoid calling leavefunc twice
static bool already_executed = false;
Tango::ApiUtil *au = ApiUtil::instance();
if (au->need_reset_already_flag() == true)
already_executed = false;
//
// Kill locking threads (if any)
//
if (already_executed == false)
au->clean_locking_threads();
//
// Manage event stuff
//
NotifdEventConsumer *notifd_ec = au->get_notifd_event_consumer();
if (notifd_ec != NULL && already_executed == false)
{
notifd_ec->shutdown();
//
// Shut-down the notifd ORB and wait for the thread to exit
//
int *rv;
notifd_ec->orb_->shutdown(true);
notifd_ec->join((void **)&rv);
}
ZmqEventConsumer *zmq_ec = au->get_zmq_event_consumer();
if (zmq_ec != NULL && already_executed == false)
{
zmq_ec->shutdown();
}
//
// Shutdown and destroy the ORB
//
if (already_executed == false)
{
if (notifd_ec == NULL)
{
CORBA::ORB_ptr orb = au->get_orb();
orb->shutdown(true);
orb->destroy();
}
already_executed = true;
au->need_reset_already_flag(false);
}
}
//+--------------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::EventConsumer
//
// description :
// Constructor for the EventConsumer class
//
//--------------------------------------------------------------------------------------------------------------------
EventConsumer::EventConsumer(ApiUtil *api_ptr)
{
//
// Build and store the fqdn prefix for devices in the TANGO_HOST environment variable (in lower case letters)
//
if (env_var_fqdn_prefix.empty() == true)
{
try
{
Database *db = (api_ptr->get_db_vect())[api_ptr->get_db_ind()];
std::string prefix = "tango://" + db->get_db_host() + ':' + db->get_db_port() + '/' ;
env_var_fqdn_prefix.push_back(prefix);
if (db->is_multi_tango_host() == true)
{
std::vector<std::string> &tango_hosts = db->get_multi_host();
std::vector<std::string> &tango_ports = db->get_multi_port();
for (unsigned int i = 1;i < tango_hosts.size();i++)
{
std::string prefix = "tango://" + tango_hosts[i] + ':' + tango_ports[i] + '/' ;
env_var_fqdn_prefix.push_back(prefix);
}
}
for (size_t loop = 0;loop < env_var_fqdn_prefix.size();++loop)
std::transform(env_var_fqdn_prefix[loop].begin(),env_var_fqdn_prefix[loop].end(),env_var_fqdn_prefix[loop].begin(),::tolower);
//
// Also get Db server defined in DB but not in the user TANGO_HOST env. variable
//
get_cs_tango_host(db);
}
catch (Tango::DevFailed &)
{
env_var_fqdn_prefix.push_back(TangoHostNotSet);
}
}
//
// initialise the unique event id for the client;
//
if (keep_alive_thread == NULL)
subscribe_event_id = 0;
//
// Install a function to be executed at exit. This is the only way I found to properly shutdown and destroy the ORB.
// Don't do this for windows DLL.
//
// Is this necessary when events are used within a server ?
//
#ifndef _USRDLL
if ((api_ptr->in_server() == false) && (api_ptr->is_lock_exit_installed() == false))
{
atexit(leavefunc);
api_ptr->set_sig_handler();
api_ptr->set_lock_exit_installed(true);
}
#endif
//
// Miscellaneous init
//
cmd.cmd_pending = false;
if (keep_alive_thread == NULL)
api_ptr->need_reset_already_flag(true);
thread_id = 0;
//
// Create and start the EventConsumerKeepAliveThread. Do this at the method's end because the keep_alive_thread
// ptr is also used as a "init done" flag.
//
if (keep_alive_thread == NULL)
{
keep_alive_thread = new EventConsumerKeepAliveThread(cmd);
keep_alive_thread->start();
}
}
//+--------------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::get_cs_tango_host()
//
// description :
// Get from a Tango control system which TANGO_HOST are available. This info comes from the Tango CS database
//
// argument :
// in :
// - db : Control system database pointer
//
//--------------------------------------------------------------------------------------------------------------------
void EventConsumer::get_cs_tango_host(Database *db)
{
try
{
DeviceData dd;
dd = db->command_inout("DbGetCSDbServerList");
std::vector<std::string> vs;
dd >> vs;
//
// Do we have a CS with a host alias used as TANGO_HOST?
// It true and if we don't know this alias, store its definition in the alias map
//
if (vs.size() == 1)
{
std::string lower_vs(vs[0]);
std::transform(lower_vs.begin(),lower_vs.end(),lower_vs.begin(),::tolower);
std::string::size_type pos = lower_vs.find(':');
if (pos != std::string::npos)
lower_vs.erase(pos);
std::string tg_host(db->get_orig_tango_host());
std::transform(tg_host.begin(),tg_host.end(),tg_host.begin(),::tolower);
if (tg_host.empty() == false && lower_vs != tg_host)
{
if (alias_map.find(tg_host) == alias_map.end())
{
#ifdef INIT_LIST
alias_map.insert({lower_vs,tg_host});
#else
alias_map.insert(std::make_pair(lower_vs,tg_host));
#endif
}
}
}
//
// Serveral Db servers for one TANGO_HOST case
//
std::vector<std::string>::iterator pos;
for (unsigned int i = 0;i < vs.size();i++)
{
std::transform(vs[i].begin(),vs[i].end(),vs[i].begin(),::tolower);
#ifdef HAS_LAMBDA_FUNC
pos = find_if(env_var_fqdn_prefix.begin(),env_var_fqdn_prefix.end(),
[&] (std::string str) -> bool
{
if (str.find(vs[i]) != std::string::npos)
return true;
else
return false;
});
if (pos == env_var_fqdn_prefix.end())
{
std::string prefix = "tango://" + vs[i] + '/' ;
env_var_fqdn_prefix.push_back(prefix);
}
#else
unsigned int j;
for (j = 0;j < env_var_fqdn_prefix.size();++j)
{
if (env_var_fqdn_prefix[j].find(vs[i]) != std::string::npos)
{
break;
}
}
if (j == env_var_fqdn_prefix.size())
{
std::string prefix = "tango://" + vs[i] + '/';
env_var_fqdn_prefix.push_back(prefix);
}
#endif
}
}
catch(...) {}
}
//+--------------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::shutdown()
//
// description :
// Method to stop the keep alive thread and to disconnect from all used event channels
//
//--------------------------------------------------------------------------------------------------------------------
void EventConsumer::shutdown()
{
cout3 << "calling Tango::EventConsumer::shutdown() \n";
//
// First, shutdown the keep alive thread
//
shutdown_keep_alive_thread();
//
// cleanup map containers
//
cleanup_EventChannel_map();
}
//+----------------------------------------------------------------------------
//
// method : EventConsumer::shutdown_keep_alive_thread()
//
// description : Ask the KeepAliveThread to suicide and wait for this to
// happen
//
//-----------------------------------------------------------------------------
void EventConsumer::shutdown_keep_alive_thread()
{
//
// Shut-down the KeepAliveThread and wait for it to exit
//
if (keep_alive_thread != NULL)
{
{
omni_mutex_lock sync(cmd);
cmd.cmd_pending = true;
cmd.cmd_code = EXIT_TH;
cmd.cond.signal();
}
int *rv;
keep_alive_thread->join((void **)&rv);
keep_alive_thread = NULL;
}
}
//+------------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::connect()
//
// description :
// This method is a wrapper around the connection to the event channel (heartbeat event)
//
// argument :
// in :
// - device_proxy : The device handle
// - d_name : The FQDN (lower case)
// - dd : The server command result (Used by ZMQ event system only)
// - adm_name : The admin device name
// - necm :
//
//------------------------------------------------------------------------------------------------------------------
void EventConsumer::connect(DeviceProxy *device_proxy,std::string &d_name,DeviceData &dd,std::string &adm_name,bool &necm)
{
std::string channel_name = adm_name;
//
// If no connection exists to this channel then connect to it. Sometimes, this method is called in order to reconnect
// to the notifd. In such a case, the lock is already locked before the method is called
//
std::map<std::string,EventChannelStruct>::iterator ipos = channel_map.find(channel_name);
if (ipos == channel_map.end())
{
connect_event_channel(channel_name,device_proxy->get_device_db(),false,dd);
}
//
// Init adm device name in channel map entry
//
if (ipos == channel_map.end())
{
channel_map[channel_name].full_adm_name = adm_name;
necm = true;
}
//
// Add entry in device_channel_map map
//
device_channel_map[d_name] = channel_name;
}
//+-----------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::attr_to_device()
//
// description :
// Method to initialize in the DeviceAttribute instance given to the user the attribute value which are received
// in a AttrValUnion (or in a class inheriting from)
//
// argument :
// in :
// - attr_value :
// - attr_value_3 :
// - vers :
// out :
// - dev_attr :
//
//-------------------------------------------------------------------------------------------------------------------
void EventConsumer::attr_to_device(const AttributeValue *attr_value,
const AttributeValue_3 *attr_value_3,
long vers,DeviceAttribute *dev_attr)
{
const DevVarLongArray *tmp_seq_lo;
CORBA::Long *tmp_lo;
const DevVarLong64Array *tmp_seq_64;
CORBA::LongLong *tmp_64;
const DevVarShortArray *tmp_seq_sh;
CORBA::Short *tmp_sh;
const DevVarDoubleArray *tmp_seq_db;
CORBA::Double *tmp_db;
const DevVarStringArray *tmp_seq_str;
char **tmp_str;
const DevVarFloatArray *tmp_seq_fl;
CORBA::Float *tmp_fl;
const DevVarBooleanArray *tmp_seq_boo;
CORBA::Boolean *tmp_boo;
const DevVarUShortArray *tmp_seq_ush;
CORBA::UShort *tmp_ush;
const DevVarCharArray *tmp_seq_uch;
CORBA::Octet *tmp_uch;
const DevVarULongArray *tmp_seq_ulo;
CORBA::ULong *tmp_ulo;
const DevVarULong64Array *tmp_seq_u64;
CORBA::ULongLong *tmp_ulolo;
const DevVarStateArray *tmp_seq_state;
Tango::DevState *tmp_state;
CORBA::ULong max,len;
if (vers == 3)
{
dev_attr->name = attr_value_3->name;
dev_attr->quality = attr_value_3->quality;
dev_attr->time = attr_value_3->time;
dev_attr->dim_x = attr_value_3->r_dim.dim_x;
dev_attr->dim_y = attr_value_3->r_dim.dim_y;
dev_attr->set_w_dim_x(attr_value_3->w_dim.dim_x);
dev_attr->set_w_dim_y(attr_value_3->w_dim.dim_y);
dev_attr->err_list = new DevErrorList(attr_value_3->err_list);
}
else
{
dev_attr->name = attr_value->name;
dev_attr->quality = attr_value->quality;
dev_attr->time = attr_value->time;
dev_attr->dim_x = attr_value->dim_x;
dev_attr->dim_y = attr_value->dim_y;
}
if (dev_attr->quality != Tango::ATTR_INVALID)
{
CORBA::TypeCode_var ty;
if (vers == 3)
ty = attr_value_3->value.type();
else
ty = attr_value->value.type();
if (ty->kind() == tk_enum)
{
attr_value_3->value >>= dev_attr->d_state;
dev_attr->d_state_filled = true;
}
else
{
CORBA::TypeCode_var ty_alias = ty->content_type();
CORBA::TypeCode_var ty_seq = ty_alias->content_type();
switch (ty_seq->kind())
{
case tk_long:
if (vers == 3)
attr_value_3->value >>= tmp_seq_lo;
else
attr_value->value >>= tmp_seq_lo;
max = tmp_seq_lo->maximum();
len = tmp_seq_lo->length();
if (tmp_seq_lo->release() == true)
{
tmp_lo = (const_cast<DevVarLongArray *>(tmp_seq_lo))->get_buffer((CORBA::Boolean)true);
dev_attr->LongSeq = new DevVarLongArray(max,len,tmp_lo,true);
}
else
{
tmp_lo = const_cast<CORBA::Long *>(tmp_seq_lo->get_buffer());
dev_attr->LongSeq = new DevVarLongArray(max,len,tmp_lo,false);
}
break;
case tk_longlong:
if (vers == 3)
attr_value_3->value >>= tmp_seq_64;
else
attr_value->value >>= tmp_seq_64;
max = tmp_seq_64->maximum();
len = tmp_seq_64->length();
if (tmp_seq_64->release() == true)
{
tmp_64 = (const_cast<DevVarLong64Array *>(tmp_seq_64))->get_buffer((CORBA::Boolean)true);
dev_attr->Long64Seq = new DevVarLong64Array(max,len,tmp_64,true);
}
else
{
tmp_64 = const_cast<CORBA::LongLong *>(tmp_seq_64->get_buffer());
dev_attr->Long64Seq = new DevVarLong64Array(max,len,tmp_64,false);
}
break;
case tk_short:
if (vers == 3)
attr_value_3->value >>= tmp_seq_sh;
else
attr_value->value >>= tmp_seq_sh;
max = tmp_seq_sh->maximum();
len = tmp_seq_sh->length();
if (tmp_seq_sh->release() == true)
{
tmp_sh = (const_cast<DevVarShortArray *>(tmp_seq_sh))->get_buffer((CORBA::Boolean)true);
dev_attr->ShortSeq = new DevVarShortArray(max,len,tmp_sh,true);
}
else
{
tmp_sh = const_cast<CORBA::Short *>(tmp_seq_sh->get_buffer());
dev_attr->ShortSeq = new DevVarShortArray(max,len,tmp_sh,false);
}
break;
case tk_double:
if (vers == 3)
attr_value_3->value >>= tmp_seq_db;
else
attr_value->value >>= tmp_seq_db;
max = tmp_seq_db->maximum();
len = tmp_seq_db->length();
if (tmp_seq_db->release() == true)
{
tmp_db = (const_cast<DevVarDoubleArray *>(tmp_seq_db))->get_buffer((CORBA::Boolean)true);
dev_attr->DoubleSeq = new DevVarDoubleArray(max,len,tmp_db,true);
}
else
{
tmp_db = const_cast<CORBA::Double *>(tmp_seq_db->get_buffer());
dev_attr->DoubleSeq = new DevVarDoubleArray(max,len,tmp_db,false);
}
break;
case tk_string:
if (vers == 3)
attr_value_3->value >>= tmp_seq_str;
else
attr_value->value >>= tmp_seq_str;
max = tmp_seq_str->maximum();
len = tmp_seq_str->length();
if (tmp_seq_str->release() == true)
{
tmp_str = (const_cast<DevVarStringArray *>(tmp_seq_str))->get_buffer((CORBA::Boolean)true);
dev_attr->StringSeq = new DevVarStringArray(max,len,tmp_str,true);
}
else
{
tmp_str = const_cast<char **>(tmp_seq_str->get_buffer());
dev_attr->StringSeq = new DevVarStringArray(max,len,tmp_str,false);
}
break;
case tk_float:
if (vers == 3)
attr_value_3->value >>= tmp_seq_fl;
else
attr_value->value >>= tmp_seq_fl;
max = tmp_seq_fl->maximum();
len = tmp_seq_fl->length();
if (tmp_seq_fl->release() == true)
{
tmp_fl = (const_cast<DevVarFloatArray *>(tmp_seq_fl))->get_buffer((CORBA::Boolean)true);
dev_attr->FloatSeq = new DevVarFloatArray(max,len,tmp_fl,true);
}
else
{
tmp_fl = const_cast<CORBA::Float *>(tmp_seq_fl->get_buffer());
dev_attr->FloatSeq = new DevVarFloatArray(max,len,tmp_fl,false);
}
break;
case tk_boolean:
if (vers == 3)
attr_value_3->value >>= tmp_seq_boo;
else
attr_value->value >>= tmp_seq_boo;
max = tmp_seq_boo->maximum();
len = tmp_seq_boo->length();
if (tmp_seq_boo->release() == true)
{
tmp_boo = (const_cast<DevVarBooleanArray *>(tmp_seq_boo))->get_buffer((CORBA::Boolean)true);
dev_attr->BooleanSeq = new DevVarBooleanArray(max,len,tmp_boo,true);
}
else
{
tmp_boo = const_cast<CORBA::Boolean *>(tmp_seq_boo->get_buffer());
dev_attr->BooleanSeq = new DevVarBooleanArray(max,len,tmp_boo,false);
}
break;
case tk_ushort:
if (vers == 3)
attr_value_3->value >>= tmp_seq_ush;
else
attr_value->value >>= tmp_seq_ush;
max = tmp_seq_ush->maximum();
len = tmp_seq_ush->length();
if (tmp_seq_ush->release() == true)
{
tmp_ush = (const_cast<DevVarUShortArray *>(tmp_seq_ush))->get_buffer((CORBA::Boolean)true);
dev_attr->UShortSeq = new DevVarUShortArray(max,len,tmp_ush,true);
}
else
{
tmp_ush = const_cast<CORBA::UShort *>(tmp_seq_ush->get_buffer());
dev_attr->UShortSeq = new DevVarUShortArray(max,len,tmp_ush,false);
}
break;
case tk_octet:
if (vers == 3)
attr_value_3->value >>= tmp_seq_uch;
else
attr_value->value >>= tmp_seq_uch;
max = tmp_seq_uch->maximum();
len = tmp_seq_uch->length();
if (tmp_seq_uch->release() == true)
{
tmp_uch = (const_cast<DevVarCharArray *>(tmp_seq_uch))->get_buffer((CORBA::Boolean)true);
dev_attr->UCharSeq = new DevVarCharArray(max,len,tmp_uch,true);
}
else
{
tmp_uch = const_cast<CORBA::Octet *>(tmp_seq_uch->get_buffer());
dev_attr->UCharSeq = new DevVarCharArray(max,len,tmp_uch,false);
}
break;
case tk_ulong:
if (vers == 3)
attr_value_3->value >>= tmp_seq_ulo;
else
attr_value->value >>= tmp_seq_ulo;
max = tmp_seq_ulo->maximum();
len = tmp_seq_ulo->length();
if (tmp_seq_ulo->release() == true)
{
tmp_ulo = (const_cast<DevVarULongArray *>(tmp_seq_ulo))->get_buffer((CORBA::Boolean)true);
dev_attr->ULongSeq = new DevVarULongArray(max,len,tmp_ulo,true);
}
else
{
tmp_ulo = const_cast<CORBA::ULong *>(tmp_seq_ulo->get_buffer());
dev_attr->ULongSeq = new DevVarULongArray(max,len,tmp_ulo,false);
}
break;
case tk_ulonglong:
if (vers == 3)
attr_value_3->value >>= tmp_seq_u64;
else
attr_value->value >>= tmp_seq_u64;
max = tmp_seq_u64->maximum();
len = tmp_seq_u64->length();
if (tmp_seq_u64->release() == true)
{
tmp_ulolo = (const_cast<DevVarULong64Array *>(tmp_seq_u64))->get_buffer((CORBA::Boolean)true);
dev_attr->ULong64Seq = new DevVarULong64Array(max,len,tmp_ulolo,true);
}
else
{
tmp_ulolo = const_cast<CORBA::ULongLong *>(tmp_seq_u64->get_buffer());
dev_attr->ULong64Seq = new DevVarULong64Array(max,len,tmp_ulolo,false);
}
break;
case tk_enum:
if (vers == 3)
attr_value_3->value >>= tmp_seq_state;
else
attr_value->value >>= tmp_seq_state;
max = tmp_seq_state->maximum();
len = tmp_seq_state->length();
if (tmp_seq_state->release() == true)
{
tmp_state = (const_cast<DevVarStateArray *>(tmp_seq_state))->get_buffer((CORBA::Boolean)true);
dev_attr->StateSeq = new DevVarStateArray(max,len,tmp_state,true);
}
else
{
tmp_state = const_cast<Tango::DevState *>(tmp_seq_state->get_buffer());
dev_attr->StateSeq = new DevVarStateArray(max,len,tmp_state,false);
}
break;
default:
break;
}
}
}
}
void EventConsumer::attr_to_device(const AttributeValue_4 *attr_value_4,DeviceAttribute *dev_attr)
{
dev_attr->name = attr_value_4->name;
dev_attr->quality = attr_value_4->quality;
dev_attr->time = attr_value_4->time;
dev_attr->dim_x = attr_value_4->r_dim.dim_x;
dev_attr->dim_y = attr_value_4->r_dim.dim_y;
dev_attr->set_w_dim_x(attr_value_4->w_dim.dim_x);
dev_attr->set_w_dim_y(attr_value_4->w_dim.dim_y);
dev_attr->err_list = new DevErrorList(attr_value_4->err_list);
if (dev_attr->quality != Tango::ATTR_INVALID)
{
att_union_to_device(&attr_value_4->value,dev_attr);
}
//
// Warning: Since Tango 9, data type SHORT is used for both short attribute and enumeration attribute!
// Therefore, we need to store somewhere which exact type it is. With IDL 5, it is easy, because the data type is
// transferred on the network (modified IDL), For previous release, we do not have enumerated data type and therefore
// the data type could be used only for SHORT.
//
dev_attr->data_type = Tango::DEV_SHORT;
dev_attr->data_format = attr_value_4->data_format;
}
void EventConsumer::attr_to_device(const ZmqAttributeValue_4 *attr_value_4,DeviceAttribute *dev_attr)
{
base_attr_to_device(attr_value_4,dev_attr);
//
// Warning: Since Tango 9, data type SHORT is used for both short attribute and enumeration attribute!
// Therefore, we need to store somewhere which exact type it is. With IDL 5, it is easy, because the data type is
// transferred on the network (modified IDL), For previous release, we do not have enumerated data type and therefore
// the data type could be used only for SHORT.
//
dev_attr->data_type = Tango::DEV_SHORT;
}
void EventConsumer::attr_to_device(const ZmqAttributeValue_5 *attr_value_5,DeviceAttribute *dev_attr)
{
base_attr_to_device(attr_value_5,dev_attr);
dev_attr->data_type = attr_value_5->data_type;
}
//+-----------------------------------------------------------------------------------------------------------------
//
// method :
// EventConsumer::att_union_to_device()
//
// description :
// Method to initialize in the DeviceAttribute instance given to the user the attribute value which are received
// in a AttrValUnion (or in a class inheriting from)
//
// argument :
// in :
// - union_ptr : Pointer to the received union
// out :
// - dev_attr : Pointer to the DeviceAttribute which will be given to the user
//
//-------------------------------------------------------------------------------------------------------------------
void EventConsumer::att_union_to_device(const AttrValUnion *union_ptr,DeviceAttribute *dev_attr)
{
CORBA::Long *tmp_lo;
CORBA::Short *tmp_sh;
CORBA::Double *tmp_db;
char **tmp_str;
CORBA::Float *tmp_fl;
CORBA::Boolean *tmp_boo;
CORBA::UShort *tmp_ush;
CORBA::Octet *tmp_uch;
CORBA::LongLong *tmp_lolo;
CORBA::ULong *tmp_ulo;
CORBA::ULongLong *tmp_ulolo;
Tango::DevState *tmp_state;
Tango::DevState sta_dev;
Tango::DevEncoded *tmp_enc;
CORBA::ULong max,len;
switch (union_ptr->_d())
{
case ATT_BOOL:
{
const DevVarBooleanArray &tmp_seq = union_ptr->bool_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_boo = (const_cast<DevVarBooleanArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->BooleanSeq = new DevVarBooleanArray(max,len,tmp_boo,true);
}
else
{
tmp_boo = const_cast<CORBA::Boolean *>(tmp_seq.get_buffer());
dev_attr->BooleanSeq = new DevVarBooleanArray(max,len,tmp_boo,false);
}
}
break;
case ATT_SHORT:
{
const DevVarShortArray &tmp_seq = union_ptr->short_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_sh = (const_cast<DevVarShortArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->ShortSeq = new DevVarShortArray(max,len,tmp_sh,true);
}
else
{
tmp_sh = const_cast<CORBA::Short *>(tmp_seq.get_buffer());
dev_attr->ShortSeq = new DevVarShortArray(max,len,tmp_sh,false);
}
}
break;
case ATT_LONG:
{
const DevVarLongArray &tmp_seq = union_ptr->long_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_lo = (const_cast<DevVarLongArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->LongSeq = new DevVarLongArray(max,len,tmp_lo,true);
}
else
{
tmp_lo = const_cast<CORBA::Long *>(tmp_seq.get_buffer());
dev_attr->LongSeq = new DevVarLongArray(max,len,tmp_lo,false);
}
}
break;
case ATT_LONG64:
{
const DevVarLong64Array &tmp_seq = union_ptr->long64_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_lolo = (const_cast<DevVarLong64Array &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->Long64Seq = new DevVarLong64Array(max,len,tmp_lolo,true);
}
else
{
tmp_lolo = const_cast<CORBA::LongLong *>(tmp_seq.get_buffer());
dev_attr->Long64Seq = new DevVarLong64Array(max,len,tmp_lolo,false);
}
}
break;
case ATT_FLOAT:
{
const DevVarFloatArray &tmp_seq = union_ptr->float_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_fl = (const_cast<DevVarFloatArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->FloatSeq = new DevVarFloatArray(max,len,tmp_fl,true);
}
else
{
tmp_fl = const_cast<CORBA::Float *>(tmp_seq.get_buffer());
dev_attr->FloatSeq = new DevVarFloatArray(max,len,tmp_fl,false);
}
}
break;
case ATT_DOUBLE:
{
const DevVarDoubleArray &tmp_seq = union_ptr->double_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_db = (const_cast<DevVarDoubleArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->DoubleSeq = new DevVarDoubleArray(max,len,tmp_db,true);
}
else
{
tmp_db = const_cast<CORBA::Double *>(tmp_seq.get_buffer());
dev_attr->DoubleSeq = new DevVarDoubleArray(max,len,tmp_db,false);
}
}
break;
case ATT_UCHAR:
{
const DevVarCharArray &tmp_seq = union_ptr->uchar_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_uch = (const_cast<DevVarCharArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->UCharSeq = new DevVarCharArray(max,len,tmp_uch,true);
}
else
{
tmp_uch = const_cast<CORBA::Octet *>(tmp_seq.get_buffer());
dev_attr->UCharSeq = new DevVarCharArray(max,len,tmp_uch,false);
}
}
break;
case ATT_USHORT:
{
const DevVarUShortArray &tmp_seq = union_ptr->ushort_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)
{
tmp_ush = (const_cast<DevVarUShortArray &>(tmp_seq)).get_buffer((CORBA::Boolean)true);
dev_attr->UShortSeq = new DevVarUShortArray(max,len,tmp_ush,true);
}
else
{
tmp_ush = const_cast<CORBA::UShort *>(tmp_seq.get_buffer());
dev_attr->UShortSeq = new DevVarUShortArray(max,len,tmp_ush,false);
}
}
break;
case ATT_ULONG:
{
const DevVarULongArray &tmp_seq = union_ptr->ulong_att_value();
max = tmp_seq.maximum();
len = tmp_seq.length();
if (tmp_seq.release() == true)