/*************************************************************************** gbx_stream_null.c (c) 2000-2019 BenoƮt Minisini This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. ***************************************************************************/ #define __STREAM_IMPL_C #include "gb_common.h" #include "gbx_stream.h" static int stream_open(STREAM *stream, const char *path, int mode) { stream->null.pos = 0; stream->common.available_now = TRUE; return FALSE; } static int stream_close(STREAM *stream) { return FALSE; } static int stream_read(STREAM *stream, char *buffer, int len) { return 0; } static int stream_write(STREAM *stream, char *buffer, int len) { stream->null.pos += len; return len; } static int stream_seek(STREAM *stream, int64_t pos, int whence) { int64_t new_pos; switch(whence) { case SEEK_SET: new_pos = pos; break; case SEEK_CUR: new_pos = stream->null.pos + pos; break; case SEEK_END: return TRUE; default: return TRUE; } if (new_pos < 0) return TRUE; stream->null.pos = new_pos; return FALSE; } static int stream_tell(STREAM *stream, int64_t *pos) { *pos = (int64_t)stream->null.pos; return FALSE; } static int stream_flush(STREAM *stream) { return FALSE; } static int stream_eof(STREAM *stream) { return TRUE; } static int stream_lof(STREAM *stream, int64_t *len) { *len = 0; return TRUE; } static int stream_handle(STREAM *stream) { return -1; } DECLARE_STREAM(STREAM_null);