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// -*- C++ -*-
#include "Grid_i.h"
// Solaris and some Windows compilers don't have min in std namespaces
// moreover on Windows 'min' is a macro, so we have to avoid using it literally.
CORBA::UShort
Grid_i::ushort_min (CORBA::UShort a, CORBA::UShort b)
{
return a > b ? b : a;
}
// Default constructor.
Grid_i::Grid_i (void)
: width_ (0),
height_ (0),
array_ (0)
{
//no-op
}
// Constructor.
Grid_i::Grid_i (CORBA::Short x,
CORBA::Short y)
: width_ (x),
height_ (y),
array_ (0)
{
}
// Default destructor.
Grid_i::~Grid_i (void)
{
}
// Set a value in the grid.
void
Grid_i::set (CORBA::Short x,
CORBA::Short y,
CORBA::Long value)
{
if (x < 0
|| y < 0
|| x >= this->width_
|| y >= this->height_)
throw Grid::RANGE_ERROR ();
else
{
if (this->array_.get () == 0)
this->array_.reset (allocate_array (this->width_, this->height_));
*(this->array_.get () + this->width_ * y + x) = value;
}
}
// Get a value from the grid.
CORBA::Long
Grid_i::get (CORBA::Short x,
CORBA::Short y)
{
if (x < 0
|| y < 0
|| x >= this->width_
|| y >= this->height_)
throw Grid::RANGE_ERROR ();
else
{
if (this->array_.get () == 0)
this->array_.reset (allocate_array (this->width_, this->height_));
return *(this->array_.get () + this->width_ * y + x);
}
}
// Access methods.
CORBA::Short
Grid_i::width (void)
{
return this->width_;
}
CORBA::Short
Grid_i::height (void)
{
return this->height_;
}
void
Grid_i::width (CORBA::Short x)
{
if (x > 0 && x != this->width_)
{
GridArray array (allocate_array (x, this->height_));
for (CORBA::Short ctr = 0; ctr < this->height_; ++ctr)
{
ACE_OS::memcpy (array.get () + x * ctr, this->array_.get () + this->width_ * ctr,
Grid_i::ushort_min (this->width_, x) * sizeof (CORBA::Long));
}
this->array_ = array;
array.release ();
this->width_ = x;
}
}
void
Grid_i::height (CORBA::Short y)
{
if (y > 0 && y != this->height_)
{
GridArray array (allocate_array (this->width_, y));
for (CORBA::Short ctr = 0; ctr < Grid_i::ushort_min (this->height_, y); ++ctr)
{
ACE_OS::memcpy (array.get () + this->width_ * ctr, this->array_.get () + this->width_ * ctr,
this->width_ * sizeof (CORBA::Long));
}
this->array_ = array;
array.release ();
this->height_ = y;
}
}
// Destroy the grid
void
Grid_i::destroy (void)
{
// Delete the array.
ACE_Auto_Array_Ptr<CORBA::Long> tmp (this->array_.release ());
this->width_ = 0;
this->height_ = 0;
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Grid has been destroyed\n")));
}
// Allocates a new array; even if NO_MEMORY is thrown there should be no memory leak
CORBA::Long *
Grid_i::allocate_array (CORBA::Short x, CORBA::Short y)
{
CORBA::Long *array = 0;
ACE_NEW_THROW_EX (array,
CORBA::Long[x * y],
CORBA::NO_MEMORY ());
return array;
}
// Set the ORB pointer.
void
Grid_Factory_i::orb (CORBA::ORB_ptr o)
{
this->orb_ = CORBA::ORB::_duplicate (o);
}
// Shutdown.
void
Grid_Factory_i::shutdown (void)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Grid Factory is shutting down\n")));
// Instruct the ORB to shutdown.
this->orb_->shutdown ();
}
// Constructor
Grid_Factory_i::Grid_Factory_i (void)
{
// no-op
}
// Destructor
Grid_Factory_i::~Grid_Factory_i (void)
{
}
// Make a <Grid>.
Grid_ptr
Grid_Factory_i::make_grid (CORBA::Short width,
CORBA::Short height)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Making a new Grid\n")));
// Set a default value for width.
if (width <= 0)
width = Grid_Factory::DEFAULT_WIDTH;
// Set a default value for height.
if (height <= 0)
height = Grid_Factory::DEFAULT_HEIGHT;
// This attempts to create a new Grid_i and throws an exception and
// returns a null value if it fails
Grid_i *grid = 0;
ACE_NEW_THROW_EX (grid,
Grid_i (width, height),
CORBA::NO_MEMORY ());
this->grids_holder_.push_back (PortableServer::ServantBase_var (grid));
// Register the Grid pointer.
CORBA::Object_var poa_object =
this->orb_->resolve_initial_references("RootPOA");
PortableServer::POA_var root_poa =
PortableServer::POA::_narrow (poa_object.in ());
PortableServer::ObjectId_var id =
root_poa->activate_object (grid);
CORBA::Object_var object = root_poa->id_to_reference (id.in ());
return Grid::_narrow (object.in ());
}
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