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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 15:26:46 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 15:26:46 +0000 |
commit | df6d86d8822458cf787b5f5620490d6a962da3b8 (patch) | |
tree | 8d499fa24a32a195bd6e384dfb70639c45c4a9bb /libio/bits/types/cookie_io_functions_t.h | |
parent | 2c7242b971fd7b63fa842df15ec6fa3d0ff8aeb0 (diff) | |
parent | 1949a12d5da678a8532359a95717d8e63910d93b (diff) |
Merge commit 'refs/top-bases/t/____longjmp_chk' into t/____longjmp_chkt/____longjmp_chk
Diffstat (limited to 'libio/bits/types/cookie_io_functions_t.h')
-rw-r--r-- | libio/bits/types/cookie_io_functions_t.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libio/bits/types/cookie_io_functions_t.h b/libio/bits/types/cookie_io_functions_t.h new file mode 100644 index 0000000000..a6d9d39a47 --- /dev/null +++ b/libio/bits/types/cookie_io_functions_t.h @@ -0,0 +1,63 @@ +/* Copyright (C) 1991-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef __cookie_io_functions_t_defined +#define __cookie_io_functions_t_defined 1 + +#include <bits/types.h> + +/* Functions to do I/O and file management for a stream. */ + +/* Read NBYTES bytes from COOKIE into a buffer pointed to by BUF. + Return number of bytes read. */ +typedef __ssize_t cookie_read_function_t (void *__cookie, char *__buf, + size_t __nbytes); + +/* Write NBYTES bytes pointed to by BUF to COOKIE. Write all NBYTES bytes + unless there is an error. Return number of bytes written. If + there is an error, return 0 and do not write anything. If the file + has been opened for append (__mode.__append set), then set the file + pointer to the end of the file and then do the write; if not, just + write at the current file pointer. */ +typedef __ssize_t cookie_write_function_t (void *__cookie, const char *__buf, + size_t __nbytes); + +/* Move COOKIE's file position to *POS bytes from the + beginning of the file (if W is SEEK_SET), + the current position (if W is SEEK_CUR), + or the end of the file (if W is SEEK_END). + Set *POS to the new file position. + Returns zero if successful, nonzero if not. */ +typedef int cookie_seek_function_t (void *__cookie, __off64_t *__pos, int __w); + +/* Close COOKIE. */ +typedef int cookie_close_function_t (void *__cookie); + +/* The structure with the cookie function pointers. + The tag name of this struct is _IO_cookie_io_functions_t to + preserve historic C++ mangled names for functions taking + cookie_io_functions_t arguments. That name should not be used in + new code. */ +typedef struct _IO_cookie_io_functions_t +{ + cookie_read_function_t *read; /* Read bytes. */ + cookie_write_function_t *write; /* Write bytes. */ + cookie_seek_function_t *seek; /* Seek/tell file position. */ + cookie_close_function_t *close; /* Close file. */ +} cookie_io_functions_t; + +#endif |