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#include "orbsvcs/Log_Macros.h"
#include "orbsvcs/Notify/Standard_Event_Persistence.h"
#include "orbsvcs/Notify/Persistent_File_Allocator.h"
#include "tao/debug.h"
#include "ace/Dynamic_Service.h"
#include "ace/OS_NS_strings.h"
#include "ace/Truncate.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO_Notify
{
Standard_Event_Persistence::Standard_Event_Persistence ()
: filename_ (ACE_TEXT ("__PERSISTENT_EVENT__.DB"))
, block_size_ (512)
, factory_ (0)
{
}
Standard_Event_Persistence::~Standard_Event_Persistence ()
{
}
// get the current factory, creating it if necessary
Event_Persistence_Factory *
Standard_Event_Persistence::get_factory ()
{
//@@todo guard? ; doublecheck?
if (this->factory_ == 0)
{
ACE_NEW_NORETURN (
this->factory_,
Standard_Event_Persistence_Factory ());
if (this->factory_ != 0)
{
if (!this->factory_->open (this->filename_.c_str ()))
{
this->factory_ = 0;
}
}
}
return this->factory_;
}
// release the current factory so a new one can be created
void
Standard_Event_Persistence::reset ()
{
delete this->factory_;
this->factory_ = 0;
}
int
Standard_Event_Persistence::init (int argc, ACE_TCHAR *argv[])
{
int result = 0;
bool verbose = false;
for (int narg = 0; narg < argc; ++narg)
{
ACE_TCHAR * av = argv[narg];
if (ACE_OS::strcasecmp (av, ACE_TEXT ("-v")) == 0)
{
verbose = true;
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Standard_Event_Persistence: -verbose\n")
));
}
else if (ACE_OS::strcasecmp (av, ACE_TEXT ("-file_path")) == 0 && narg + 1 < argc)
{
this->filename_ = argv[narg + 1];
if (TAO_debug_level > 0 || verbose)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Standard_Event_Persistence: Setting -file_path: %s\n"),
this->filename_.c_str ()
));
}
narg += 1;
}
else if (ACE_OS::strcasecmp (av, ACE_TEXT ("-block_size")) == 0 && narg + 1 < argc)
{
this->block_size_ = ACE_OS::atoi(argv[narg + 1]);
if (TAO_debug_level > 0 || verbose)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Standard_Event_Persistence: Setting -block_size: %d\n"),
this->block_size_
));
}
narg += 1;
}
else
{
ORBSVCS_ERROR ((LM_ERROR,
ACE_TEXT ("(%P|%t) Unknown parameter to Standard Event Persistence: %s\n"),
argv[narg]
));
result = -1;
}
}
return result;
}
int
Standard_Event_Persistence::fini ()
{
delete this->factory_;
this->factory_ = 0;
return 0;
}
Standard_Event_Persistence_Factory::Standard_Event_Persistence_Factory ()
: allocator_()
, root_(this)
, psb_(0)
, serial_number_(ROUTING_SLIP_ROOT_SERIAL_NUMBER + 1)
, is_reloading_ (false)
{
}
bool
Standard_Event_Persistence_Factory::open (const ACE_TCHAR* filename,
ACE_UINT32 block_size)
{
bool result = false;
if (allocator_.open (filename, block_size))
{
this->is_reloading_ = this->root_.load(ROUTING_SLIP_ROOT_BLOCK_NUMBER, ROUTING_SLIP_ROOT_SERIAL_NUMBER);
if (! this->is_reloading_)
{
ACE_ASSERT (this->psb_ == 0);
// this->psb_ = this->allocator_.allocate();
this->root_.store_root();
}
result = true;
}
return result;
}
Standard_Event_Persistence_Factory::~Standard_Event_Persistence_Factory()
{
if (TAO_debug_level > 0)
{
ORBSVCS_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Standard_Event_Persistence_Factory::~Standard_Event_Persistence_Factory\n")
));
}
this->root_.release_all ();
delete this->psb_;
this->psb_ = 0;
this->allocator_.shutdown();
}
Routing_Slip_Persistence_Manager*
Standard_Event_Persistence_Factory::create_routing_slip_persistence_manager(
Persistent_Callback* callback)
{
Routing_Slip_Persistence_Manager* rspm = 0;
ACE_NEW_RETURN(rspm, Routing_Slip_Persistence_Manager(this), rspm);
rspm->set_callback(callback);
return rspm;
}
Routing_Slip_Persistence_Manager *
Standard_Event_Persistence_Factory::first_reload_manager()
{
Routing_Slip_Persistence_Manager * result = 0;
if (this->is_reloading_)
{
result = this->root_.load_next();
}
return result;
}
void
Standard_Event_Persistence_Factory::done_reloading(
Persistent_Storage_Block * next_psb,
ACE_UINT64 current_serial_number)
{
ACE_ASSERT (this->psb_ == 0);
this->psb_ = next_psb;
this->serial_number_ = current_serial_number;
this->is_reloading_ = false;
}
void
Standard_Event_Persistence_Factory::preallocate_next_record(
ACE_UINT64& current_serial_number,
Persistent_Storage_Block*& current_psb,
ACE_UINT64& next_serial_number,
ACE_UINT32& next_block_number)
{
// return current serial number and
// a psb containing current record number
current_serial_number = this->serial_number_;
this->psb_->set_allocator_owns(false); // give up ownership
this->psb_->set_sync();
current_psb = this->psb_;
this->get_preallocated_pointer (next_serial_number, next_block_number);
}
void
Standard_Event_Persistence_Factory::get_preallocated_pointer(
ACE_UINT64& next_serial_number,
ACE_UINT32& next_block_number)
{
++this->serial_number_;
this->psb_ = this->allocator_.allocate();
next_serial_number = this->serial_number_;
next_block_number = ACE_Utils::truncate_cast<ACE_UINT32> (this->psb_->block_number());
}
Persistent_File_Allocator*
Standard_Event_Persistence_Factory::allocator()
{
return &this->allocator_;
}
Routing_Slip_Persistence_Manager &
Standard_Event_Persistence_Factory::root()
{
return this->root_;
}
} // End TAO_Notify_Namespace
TAO_END_VERSIONED_NAMESPACE_DECL
ACE_FACTORY_NAMESPACE_DEFINE (TAO_Notify_Serv,
TAO_Notify_Standard_Event_Persistence,
TAO_Notify::Standard_Event_Persistence)
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