/* Open
*/
rc_t KColumnIdx2OpenRead ( KColumnIdx2 *self,
const KDirectory *dir, uint64_t eof )
{
rc_t rc = KDirectoryOpenFileRead ( dir,
( const KFile** ) & self -> f, "idx2" );
#if IDX2_READ_FILE_BUFFER
if ( rc == 0 )
{
KFile * orig = self -> f;
rc = KBufFileMakeRead ( ( const KFile** ) & self -> f, self -> f, eof + 1 );
if ( rc == 0 )
{
KFileRelease ( orig );
}
else
{
self -> f = orig;
rc = 0;
}
}
#endif
if ( rc == 0 )
rc = KColumnIdx2Init ( self, eof );
return rc;
}
/* Open
*/
rc_t KColumnDataOpenRead ( KColumnData *self,
const KDirectory *dir, uint64_t eof, size_t pgsize )
{
rc_t rc = KDirectoryVOpenFileRead ( dir,
& self -> f, "data", NULL );
#if DATA_READ_FILE_BUFFER
if ( rc == 0 )
{
const KFile * orig = self -> f;
rc = KBufFileMakeRead ( & self -> f, self -> f, DATA_READ_FILE_BUFFER );
if ( rc == 0 )
{
KFileRelease ( orig );
}
else
{
self -> f = orig;
rc = 0;
}
}
#endif
if ( rc == 0 )
rc = KColumnDataInit ( self, eof, pgsize );
return rc;
}
rc_t make_lookup_reader( const KDirectory *dir, const struct index_reader * index,
struct lookup_reader ** reader, size_t buf_size, const char * fmt, ... )
{
rc_t rc;
const struct KFile * f = NULL;
va_list args;
va_start ( args, fmt );
rc = KDirectoryVOpenFileRead( dir, &f, fmt, args );
if ( rc != 0 )
{
char tmp[ 4096 ];
size_t num_writ;
rc_t rc1 = string_vprintf( tmp, sizeof tmp, &num_writ, fmt, args );
if ( rc1 != 0 )
ErrMsg( "make_lookup_reader.KDirectoryVOpenFileRead( '?' ) -> %R", rc );
else
ErrMsg( "make_lookup_reader.KDirectoryVOpenFileRead( '%s' ) -> %R", tmp, rc );
}
else
{
const struct KFile * temp_file = NULL;
rc = KBufFileMakeRead( &temp_file, f, buf_size );
KFileRelease( f );
if ( rc != 0 )
{
ErrMsg( "make_lookup_reader.KBufFileMakeRead() -> %R", rc );
}
else
{
lookup_reader * r = calloc( 1, sizeof * r );
if ( r == NULL )
{
KFileRelease( temp_file );
rc = RC( rcVDB, rcNoTarg, rcConstructing, rcMemory, rcExhausted );
ErrMsg( "make_lookup_reader.calloc( %d ) -> %R", ( sizeof * r ), rc );
}
else
{
r->f = temp_file;
r->index = index;
rc = make_SBuffer( &r->buf, 4096 );
if ( rc == 0 )
*reader = r;
else
release_lookup_reader( r );
}
}
}
va_end ( args );
return rc;
}
/* Open
*/
rc_t KColumnIdx2OpenRead ( KColumnIdx2 *self,
const KDirectory *dir, uint64_t eof )
{
rc_t rc;
rc = KDataBufferMake ( & self -> cstorage, sizeof ( KColumnIdx2BlockCache ) * 8, 0 );
if ( rc != 0 )
{
memset ( self, 0, sizeof * self );
return rc;
}
self -> last = 0;
if ( eof == 0 )
{
#if 0
KDataBufferResize(&self->cstorage,0);
self -> last = 0;
#endif
self -> eof = 0;
self -> f = NULL;
return 0;
}
rc = KDirectoryVOpenFileRead ( dir,
& self -> f, "idx2", NULL );
#if IDX2_READ_FILE_BUFFER
if ( rc == 0 )
{
const KFile * orig = self -> f;
rc = KBufFileMakeRead ( & self -> f, self -> f, IDX2_READ_FILE_BUFFER );
if ( rc == 0 )
{
KFileRelease ( orig );
}
else
{
self -> f = orig;
rc = 0;
}
}
#endif
if ( rc == 0 )
rc = KColumnIdx2Init ( self, eof );
return rc;
}
