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/* ====================================================================
* Copyright (c) 2003-2006, Martin Hauner
* http://subcommander.tigris.org
*
* Subcommander is licensed as described in the file doc/COPYING, which
* you should have received as part of this distribution.
* ====================================================================
*/
// sc
#include "File.h"
#include "Memory.h"
#include "apr.h"
#include "AprError.h"
#include "Error.h"
// apr
#include <apr_pools.h>
#include <apr_strings.h>
#include <apr_file_io.h>
#include <apr_file_info.h>
#include <apr_mmap.h>
// sys
#include <assert.h>
File::File( const char* file, apr_pool_t* pool )
: _open(false), _file(0), _mmaped(false), _mmap(0)
{
_pool = apr::createPool(pool);
_filename = apr_pstrdup( _pool, file );
assert(_filename);
_finfo = (apr_finfo_t*)apr_pcalloc( _pool, sizeof(apr_finfo_t) );
assert(_finfo);
}
File::~File()
{
apr::destroyPool(_pool);
}
const sc::Error* File::open()
{
apr_status_t status = apr_file_open( &_file, _filename, APR_READ, APR_OS_DEFAULT, _pool );
APR_ERR(status);
_open = true;
return sc::Success;
}
const sc::Error* File::close()
{
if( _open )
{
_open = false;
apr_status_t status = apr_file_close(_file);
APR_ERR(status);
}
return sc::Success;
}
const sc::Error* File::mmap()
{
apr_status_t status;
status = apr_file_info_get( _finfo, APR_FINFO_SIZE, _file );
APR_ERR(status);
_mmap = (apr_mmap_t*)apr_pcalloc( _pool, sizeof(apr_mmap_t) );
assert(_mmap);
status = apr_mmap_create( &_mmap, _file, 0, (apr_size_t)_finfo->size, APR_MMAP_READ, _pool );
APR_ERR(status);
_mmaped = true;
return sc::Success;
}
const sc::Error* File::unmmap()
{
_mmaped = false;
apr_status_t status = apr_mmap_delete(_mmap);
APR_ERR(status);
return sc::Success;
}
bool File::ismmaped() const
{
return _mmaped;
}
void* File::mmaped() const
{
return _mmap->mm;
}
bool File::exists()
{
if( ! _open )
{
const sc::Error* error = open();
if( error )
{
delete error;
return false;
}
close();
}
return true;
#if 0
apr_status_t status = apr_file_info_get( _finfo, APR_FINFO_TYPE, _file );
if( status != APR_SUCCESS )
{
return false;
}
return true;
#endif
}
sc_size_t File::getSize() const
{
apr_status_t status;
status = apr_file_info_get( _finfo, APR_FINFO_SIZE, _file );
if( status != APR_SUCCESS )
{
// maybe throw AprException...!?
return -1;
}
return _finfo->size;
}
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