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// $Id$
#include "ace/config-all.h"
#include "ace/Guard_T.h"
#include "ace/Synch_Traits.h"
#include "ace/Thread_Mutex.h"
#ifndef JAWS_BUILD_DLL
#define JAWS_BUILD_DLL
#endif
#include "jaws3/FILE.h"
JAWS_FILE::JAWS_FILE (void)
: map_ (0)
, can_map_ (0)
{
}
JAWS_FILE::~JAWS_FILE (void)
{
delete this->map_;
this->map_ = 0;
}
ACE_Mem_Map *
JAWS_FILE::mem_map (int length,
int prot,
int share,
void *addr,
ACE_OFF_T offset,
LPSECURITY_ATTRIBUTES sa) const
{
if (this->can_map_ == 0)
return 0;
JAWS_FILE *mutable_this = (JAWS_FILE *) this;
return mutable_this->mem_map (length, prot, share, addr, offset, sa);
}
ACE_Mem_Map *
JAWS_FILE::mem_map (int length,
int prot,
int share,
void *addr,
ACE_OFF_T offset,
LPSECURITY_ATTRIBUTES sa)
{
if (this->can_map_ == 0)
return 0;
if (this->map_ == 0)
{
ACE_Guard<ACE_SYNCH_MUTEX> g (this->lock_);
if (this->map_ == 0)
{
this->map_ = new ACE_Mem_Map;
if (this->map_ != 0)
{
int r = this->map_->map (this->get_handle (),
static_cast<size_t> (length),
prot,
share,
addr,
offset,
sa);
if (r < 0)
{
delete this->map_;
this->map_ = 0;
}
}
}
}
return this->map_;
}
ACE_Mem_Map *
JAWS_FILE::map (void) const
{
return this->map_;
}
void
JAWS_FILE::can_map (int flag)
{
this->can_map_ = (flag != 0);
}
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