| /* Copyright (C) 2002, 2003, 2004, 2005 |
| Free Software Foundation, Inc. |
| Contributed by Andy Vaught |
| |
| This file is part of the GNU Fortran 95 runtime library (libgfortran). |
| |
| Libgfortran 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. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| Libgfortran 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 Libgfortran; see the file COPYING. If not, write to |
| the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| /* Unix stream I/O module */ |
| |
| #define BUFFER_SIZE 8192 |
| |
| typedef struct |
| { |
| stream st; |
| |
| int fd; |
| gfc_offset buffer_offset; /* File offset of the start of the buffer */ |
| gfc_offset physical_offset; /* Current physical file offset */ |
| gfc_offset logical_offset; /* Current logical file offset */ |
| gfc_offset dirty_offset; /* Start of modified bytes in buffer */ |
| gfc_offset file_length; /* Length of the file, -1 if not seekable. */ |
| |
| char *buffer; |
| int len; /* Physical length of the current buffer */ |
| int active; /* Length of valid bytes in the buffer */ |
| |
| int prot; |
| int ndirty; /* Dirty bytes starting at dirty_offset */ |
| |
| int special_file; /* =1 if the fd refers to a special file */ |
| |
| unsigned unbuffered:1; |
| |
| char small_buffer[BUFFER_SIZE]; |
| |
| } |
| unix_stream; |
| |
| extern stream *init_error_stream (unix_stream *); |
| internal_proto(init_error_stream); |