Mercurial > octave
view libinterp/corefcn/c-file-ptr-stream.cc @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | 8dd5da409418 |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2000-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave 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 3 of the License, or // (at your option) any later version. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <iomanip> #include "filepos-wrappers.h" #include "c-file-ptr-stream.h" OCTAVE_NAMESPACE_BEGIN #if ! defined (SEEK_SET) # define SEEK_SET 0 #endif #if ! defined (SEEK_CUR) # define SEEK_CUR 1 #endif #if ! defined (SEEK_END) # define SEEK_END 2 #endif c_file_ptr_buf::~c_file_ptr_buf (void) { buf_close (); } // FIXME: I'm sure there is room for improvement here... c_file_ptr_buf::int_type c_file_ptr_buf::overflow (int_type c) { if (m_f) return (c != traits_type::eof ()) ? std::fputc (c, m_f) : flush (); else return traits_type::not_eof (c); } c_file_ptr_buf::int_type c_file_ptr_buf::underflow_common (bool bump) { if (m_f) { int_type c = std::fgetc (m_f); if (! bump && c != traits_type::eof ()) ungetc (c, m_f); return c; } else return traits_type::eof (); } c_file_ptr_buf::int_type c_file_ptr_buf::pbackfail (int_type c) { return ((c != traits_type::eof () && m_f) ? ungetc (c, m_f) : traits_type::not_eof (c)); } std::streamsize c_file_ptr_buf::xsputn (const char *s, std::streamsize n) { if (m_f) return std::fwrite (s, 1, n, m_f); else return 0; } std::streamsize c_file_ptr_buf::xsgetn (char *s, std::streamsize n) { if (m_f) return std::fread (s, 1, n, m_f); else return 0; } static inline int seekdir_to_whence (std::ios::seekdir dir) { return (dir == std::ios::beg ? SEEK_SET : (dir == std::ios::cur ? SEEK_CUR : (dir == std::ios::end ? SEEK_END : dir))); } std::streampos c_file_ptr_buf::seekoff (std::streamoff offset, std::ios::seekdir dir, std::ios::openmode) { if (m_f) { octave_fseeko_wrapper (m_f, offset, seekdir_to_whence (dir)); return octave_ftello_wrapper (m_f); } else return 0; } std::streampos c_file_ptr_buf::seekpos (std::streampos offset, std::ios::openmode) { if (m_f) { octave_fseeko_wrapper (m_f, offset, SEEK_SET); return octave_ftello_wrapper (m_f); } else return 0; } int c_file_ptr_buf::sync (void) { flush (); return 0; } int c_file_ptr_buf::flush (void) { return m_f ? std::fflush (m_f) : traits_type::eof (); } int c_file_ptr_buf::buf_close (void) { int retval = -1; flush (); if (m_f) { retval = m_cf (m_f); m_f = nullptr; } return retval; } int c_file_ptr_buf::seek (off_t offset, int origin) { return m_f ? octave_fseeko_wrapper (m_f, offset, origin) : -1; } off_t c_file_ptr_buf::tell (void) { return m_f ? octave_ftello_wrapper (m_f) : -1; } int c_file_ptr_buf::file_close (FILE *m_f) { return std::fclose (m_f); } #if defined (HAVE_ZLIB) c_zfile_ptr_buf::~c_zfile_ptr_buf (void) { buf_close (); } // FIXME: I'm sure there is room for improvement here... c_zfile_ptr_buf::int_type c_zfile_ptr_buf::overflow (int_type c) { if (m_f) return (c != traits_type::eof ()) ? gzputc (m_f, c) : flush (); else return traits_type::not_eof (c); } c_zfile_ptr_buf::int_type c_zfile_ptr_buf::underflow_common (bool bump) { if (m_f) { int_type c = gzgetc (m_f); if (! bump && c != traits_type::eof ()) gzungetc (c, m_f); return c; } else return traits_type::eof (); } c_zfile_ptr_buf::int_type c_zfile_ptr_buf::pbackfail (int_type c) { return ((c != traits_type::eof () && m_f) ? gzungetc (c, m_f) : traits_type::not_eof (c)); } std::streamsize c_zfile_ptr_buf::xsputn (const char *s, std::streamsize n) { if (m_f) return gzwrite (m_f, s, n); else return 0; } std::streamsize c_zfile_ptr_buf::xsgetn (char *s, std::streamsize n) { if (m_f) return gzread (m_f, s, n); else return 0; } std::streampos c_zfile_ptr_buf::seekoff (std::streamoff /* offset */, std::ios::seekdir /* dir */, std::ios::openmode) { // FIXME #if 0 if (m_f) { gzseek (m_f, offset, seekdir_to_whence (dir)); return gztell (m_f); } else return 0; #endif return -1; } std::streampos c_zfile_ptr_buf::seekpos (std::streampos /* offset */, std::ios::openmode) { // FIXME #if 0 if (m_f) { gzseek (m_f, offset, SEEK_SET); return gztell (m_f); } else return 0; #endif return -1; } int c_zfile_ptr_buf::sync (void) { flush (); return 0; } int c_zfile_ptr_buf::flush (void) { // FIXME: do we need something more complex here, passing // something other than 0 for the second argument to gzflush and // checking the return value, etc.? return m_f ? gzflush (m_f, 0) : traits_type::eof (); } int c_zfile_ptr_buf::buf_close (void) { int retval = -1; flush (); if (m_f) { retval = m_cf (m_f); m_f = nullptr; } return retval; } #endif OCTAVE_NAMESPACE_END