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// $Id$
#include "orbsvcs/FtRtEvent/EventChannel/Replication_Service.h"
#include "orbsvcs/FtRtEvent/EventChannel/AMI_Replication_Strategy.h"
#include "orbsvcs/FtRtEvent/EventChannel/Basic_Replication_Strategy.h"
#include "orbsvcs/FtRtEvent/EventChannel/FTEC_ORBInitializer.h"
#include "../Utils/Log.h"
#include "tao/ORBInitializer_Registry.h"
#include "tao/CDR.h"
#include "ace/Auto_Ptr.h"
#include "ace/OS_NS_strings.h"
ACE_RCSID (EventChannel,
Replication_Service,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace FTRTEC
{
namespace {
auto_ptr<Replication_Strategy> replication_strategy;
int threads = 1;
Replication_Service* service;
}
Replication_Service* Replication_Service::instance()
{
return service;
}
Replication_Service::Replication_Service()
{
service = this;
}
Replication_Service::~Replication_Service()
{
}
int Replication_Service::init (int argc, ACE_TCHAR* argv[])
{
static int initialized = 0;
// Only allow initialization once.
if (initialized)
return 0;
initialized = 1;
bool ami = false;
// Parse any service configurator parameters.
while (argc > 0) {
if (ACE_OS::strcasecmp (argv[0], ACE_TEXT("AMI")) ==0 )
ami = true;
if (ACE_OS::strcasecmp (argv[0], ACE_TEXT("-threads")) ==0 && argc > 1) {
FTRTEC::threads = ACE_OS::atoi(argv[1]);
if (FTRTEC::threads ==0 )
FTRTEC::threads = 1;
++argv; --argc;
}
++argv; --argc;
}
Replication_Strategy* strategy;
if (ami) {
ACE_NEW_RETURN (strategy, AMI_Replication_Strategy(threads() > 1), -1);
TAO_FTRTEC::Log(3, "AMI replication strategy\n");
}
else {
ACE_NEW_RETURN (strategy, Basic_Replication_Strategy(threads() > 1), -1);
TAO_FTRTEC::Log(3, "Basic replication strategy\n");
}
ACE_AUTO_PTR_RESET (replication_strategy, strategy, Replication_Strategy);
ACE_TRY_NEW_ENV
{
PortableInterceptor::ORBInitializer_ptr temp_orb_initializer =
PortableInterceptor::ORBInitializer::_nil ();
PortableInterceptor::ORBInitializer_var orb_initializer;
/// Register the RTCORBA ORBInitializer.
ACE_NEW_THROW_EX (temp_orb_initializer,
FTEC_ORBInitializer,
CORBA::NO_MEMORY ());
ACE_TRY_CHECK;
orb_initializer = temp_orb_initializer;
PortableInterceptor::register_orb_initializer (orb_initializer.in ()
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION,
"Unexpected exception caught while "
"initializing the TransactionDepth");
return -1;
}
ACE_ENDTRY;
return 0;
}
void Replication_Service::become_primary()
{
TAO_FTRTEC::Log(3, "become_primary\n");
Replication_Strategy* strategy =
replication_strategy->make_primary_strategy();
ACE_ASSERT(strategy);
if (replication_strategy.get() != strategy) {
ACE_AUTO_PTR_RESET(replication_strategy, strategy, Replication_Strategy);
}
}
void Replication_Service::check_validity(ACE_ENV_SINGLE_ARG_DECL)
{
replication_strategy->check_validity(ACE_ENV_SINGLE_ARG_PARAMETER);
}
void Replication_Service::replicate_request(const FtRtecEventChannelAdmin::Operation& update,
RollbackOperation rollback
ACE_ENV_ARG_DECL)
{
TAO_OutputCDR cdr;
cdr << update;
ACE_Message_Block mb;
ACE_CDR::consolidate(&mb, cdr.begin());
#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)
FTRT::State state(mb.length(), &mb);
#else
// If the form of the constructor is not available, we will need
// to do the copy manually. First, set the octet sequence length.
FTRT::State state;
CORBA::ULong length = mb.length ();
state.length (length);
// Now copy over each byte.
char* base = mb.data_block ()->base ();
for(CORBA::ULong i = 0; i < length; i++)
{
state[i] = base[i];
}
#endif /* TAO_NO_COPY_OCTET_SEQUENCES == 1 */
replication_strategy->replicate_request(
state,
rollback,
update.object_id
ACE_ENV_ARG_PARAMETER);
}
void Replication_Service::add_member(const FTRT::ManagerInfo & info,
CORBA::ULong object_group_ref_version
ACE_ENV_ARG_DECL)
{
replication_strategy->add_member(info, object_group_ref_version ACE_ENV_ARG_PARAMETER);
}
int Replication_Service::acquire_read (void)
{
int r = replication_strategy->acquire_read();
TAO_FTRTEC::Log(3, "Read Lock acquired %d\n", r);
return r;
}
int Replication_Service::acquire_write (void)
{
int r= replication_strategy->acquire_write();
TAO_FTRTEC::Log(3, "Write Lock acqured %d\n", r);
return r;
}
int Replication_Service::release (void)
{
int r= replication_strategy->release();
TAO_FTRTEC::Log(3, "Lock Released %d\n", r);
return r;
}
int Replication_Service::threads() const {
return FTRTEC::threads;
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
ACE_FACTORY_NAMESPACE_DEFINE (
TAO_FTRTEC,
Replication_Service,
FTRTEC::Replication_Service)
ACE_STATIC_SVC_DEFINE (
Replication_Service,
ACE_TEXT ("FTRTEC_Replication"),
ACE_SVC_OBJ_T,
&ACE_SVC_NAME (Replication_Service),
ACE_Service_Type::DELETE_THIS
| ACE_Service_Type::DELETE_OBJ,
0)
|
