/* FIXME: Last file not removed from list. */
int fclose( struct _PDCLIB_file_t * stream )
{
struct _PDCLIB_file_t * current = _PDCLIB_filelist;
struct _PDCLIB_file_t * previous = NULL;
/* Checking that the FILE handle is actually one we had opened before. */
while ( current != NULL )
{
if ( stream == current )
{
if ( stream->status & _PDCLIB_WROTELAST ) fflush( stream );
if ( stream->status & _PDCLIB_LIBBUFFER ) free( stream->buffer );
_PDCLIB_close( stream->handle );
if ( previous != NULL )
{
previous->next = stream->next;
}
else
{
_PDCLIB_filelist = stream->next;
}
free( stream );
return 0;
}
previous = current;
current = current->next;
}
return -1;
}
int main( void )
{
/* This testdriver assumes POSIX, i.e. _PDCLIB_fd_t being int and being
incremented by one on each successful open.
*/
int fh;
char buffer[ 10 ];
remove( testfile );
/* Trying to read non-existent file. */
TESTCASE( _PDCLIB_open( testfile, _PDCLIB_FREAD ) == _PDCLIB_NOHANDLE );
/* Writing to file, trying to read from it. */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FWRITE ) ) != _PDCLIB_NOHANDLE );
TESTCASE( write( fh, "test", 4 ) == 4 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( read( fh, buffer, 4 ) == -1 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Reading from file, trying to write to it. */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FREAD ) ) != _PDCLIB_NOHANDLE );
TESTCASE( write( fh, "test", 4 ) == -1 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Appending to file, trying to read from it. */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FAPPEND ) ) != _PDCLIB_NOHANDLE );
TESTCASE( write( fh, "app", 3 ) == 3 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( read( fh, buffer, 10 ) == -1 );
TESTCASE( write( fh, "end", 3 ) == 3 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Reading and writing from file ("r+"). */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FREAD | _PDCLIB_FRW ) ) != _PDCLIB_NOHANDLE );
TESTCASE( read( fh, buffer, 10 ) == 10 );
TESTCASE( memcmp( buffer, "testappend", 10 ) == 0 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( write( fh, "wedo", 4 ) == 4 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( read( fh, buffer, 10 ) == 10 );
TESTCASE( memcmp( buffer, "wedoappend", 10 ) == 0 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Writing and reading from file ("w+"). */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FWRITE | _PDCLIB_FRW ) ) != _PDCLIB_NOHANDLE );
TESTCASE( write( fh, "test", 4 ) == 4 );
TESTCASE( lseek( fh, 1, SEEK_SET ) == 1 );
TESTCASE( read( fh, buffer, 2 ) == 2 );
TESTCASE( memcmp( buffer, "es", 2 ) == 0 );
TESTCASE( write( fh, "sie", 3 ) == 3 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( read( fh, buffer, 6 ) == 6 );
TESTCASE( memcmp( buffer, "tessie", 6 ) == 0 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Appending and reading from file ("a+"). */
TESTCASE( ( fh = _PDCLIB_open( testfile, _PDCLIB_FAPPEND | _PDCLIB_FRW ) ) != _PDCLIB_NOHANDLE );
TESTCASE( write( fh, "baby", 4 ) == 4 );
TESTCASE( lseek( fh, 0, SEEK_SET ) == 0 );
TESTCASE( read( fh, buffer, 10 ) == 10 );
TESTCASE( memcmp( buffer, "tessiebaby", 10 ) == 0 );
TESTCASE( _PDCLIB_close( fh ) == 0 );
/* Cleaning up. */
TESTCASE( remove( testfile ) == 0 );
return TEST_RESULTS;
}
int fclose( struct _PDCLIB_file_t * stream )
{
struct _PDCLIB_file_t * current = _PDCLIB_filelist;
struct _PDCLIB_file_t * previous = NULL;
/* Checking that the FILE handle is actually one we had opened before. */
while ( current != NULL )
{
if ( stream == current )
{
/* Flush buffer */
if ( stream->status & _PDCLIB_FWRITE )
{
if ( _PDCLIB_flushbuffer( stream ) == EOF )
{
/* Flush failed, errno already set */
return EOF;
}
}
/* Close handle */
_PDCLIB_close( stream->handle );
/* Remove stream from list */
if ( previous != NULL )
{
previous->next = stream->next;
}
else
{
_PDCLIB_filelist = stream->next;
}
/* Delete tmpfile() */
if ( stream->status & _PDCLIB_DELONCLOSE )
{
remove( stream->filename );
}
/* Free stream */
if ( ! ( stream->status & _PDCLIB_STATIC ) )
{
free( stream );
}
return 0;
}
previous = current;
current = current->next;
}
_PDCLIB_errno = _PDCLIB_EIO;
return -1;
}
