Add tmpfile() implementation of FILE_Cookie.

1 files changed, 0 insertions, 173 deletions

diff --git a/libdimensionxx/cookie.cpp b/libdimensionxx/cookie.cpp
deleted file mode 100644
index 962137a..0000000
--- a/libdimensionxx/cookie.cpp
+++ /dev/null
@@ -1,173 +0,0 @@
-/*************************************************************************
- * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
- *                                                                       *
- * This file is part of The Dimension Library.                           *
- *                                                                       *
- * The Dimension 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 3 of the *
- * License, or (at your option) any later version.                       *
- *                                                                       *
- * The Dimension 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 this program.  If not, see                         *
- * <http://www.gnu.org/licenses/>.                                       *
- *************************************************************************/
-
-#include "dimensionxx.hpp"
-#include <stdio.h>
-
-// The conundrum: libdimension and libdimension-* use C I/O, with FILE*'s.
-// We want to use C++ I/O with std::i/ostreams.  Unfortunately, there's no
-// standard way to map between them, so we use the nonportable GNU stdio
-// extension fopencookie(), which creates a FILE* with custom read/write/seek
-// functions.  BSD also has a similar function, funopen(), which we should
-// use too.  Failing in all that, we should fall back on a tmpfile() buffer.
-
-namespace Dimension
-{
-  namespace
-  {
-    // Cookie read function
-    ssize_t
-    cookie_read(void* cookie, char* buf, size_t size)
-    {
-      FILE_Cookie* streams = reinterpret_cast<FILE_Cookie*>(cookie);
-
-      // Do the unformatted read
-      streams->istr().read(buf, size);
-
-      if (streams->istr().eof() || streams->istr().good()) {
-        return streams->istr().gcount(); // This returns 0 on an immediate EOF
-                                         // for us.
-      } else {
-        // Some non-EOF error
-        return -1;
-      }
-    }
-
-    // Cookie write function
-    ssize_t
-    cookie_write(void* cookie, const char* buf, size_t size)
-    {
-      FILE_Cookie* streams = reinterpret_cast<FILE_Cookie*>(cookie);
-
-      // Do the unformatted write
-      streams->ostr().write(buf, size);
-
-      if (streams->ostr().good()) {
-        // Write operation succeeded, so we must've written size bytes
-        return size;
-      } else {
-        // Write operation failed
-        return -1;
-      }
-    }
-
-    // Cookie seek function
-    int
-    cookie_seek(void* cookie, off64_t* offset, int whence)
-    {
-      FILE_Cookie* streams = reinterpret_cast<FILE_Cookie*>(cookie);
-
-      if (streams->is_input()) {
-        // If we have an input stream, seek it
-        switch (whence) {
-        case SEEK_SET:
-          streams->istr().seekg(*offset, std::ios::beg);
-          break;
-        case SEEK_CUR:
-          streams->istr().seekg(*offset, std::ios::cur);
-          break;
-        case SEEK_END:
-          streams->istr().seekg(*offset, std::ios::end);
-          break;
-        }
-
-        if (!streams->istr().good()) {
-          // Seek failed
-          return 1;
-        }
-      }
-
-      if (streams->is_output()) {
-        // If we have an output stream, seek it too
-        switch (whence) {
-        case SEEK_SET:
-          streams->ostr().seekp(*offset, std::ios::beg);
-          break;
-        case SEEK_CUR:
-          streams->ostr().seekp(*offset, std::ios::cur);
-          break;
-        case SEEK_END:
-          streams->ostr().seekp(*offset, std::ios::end);
-        }
-
-        if (!streams->ostr().good()) {
-          // Seek failed
-          return 1;
-        }
-      }
-
-      // Seek succeeded
-      return 0;
-    }
-  }
-
-  // Make an input FILE_Cookie
-  FILE_Cookie::FILE_Cookie(std::istream& istr)
-    : m_istr(&istr), m_ostr(0)
-  {
-    cookie_io_functions_t io_funcs;
-    io_funcs.read  = &cookie_read;
-    io_funcs.write = 0;
-    io_funcs.seek  = &cookie_seek;
-    io_funcs.close = 0;
-
-    m_file = fopencookie(reinterpret_cast<void*>(this), "r", io_funcs);
-  }
-
-  // Make an output FILE_Cookie
-  FILE_Cookie::FILE_Cookie(std::ostream& ostr)
-    : m_istr(0), m_ostr(&ostr)
-  {
-    cookie_io_functions_t io_funcs;
-    io_funcs.read  = 0;
-    io_funcs.write = &cookie_write;
-    io_funcs.seek  = &cookie_seek;
-    io_funcs.close = 0;
-
-    m_file = fopencookie(reinterpret_cast<void*>(this), "w", io_funcs);
-  }
-
-  // Make an I/O FILE_Cookie
-  FILE_Cookie::FILE_Cookie(std::istream& istr, std::ostream& ostr)
-    : m_istr(&istr), m_ostr(&ostr)
-  {
-    cookie_io_functions_t io_funcs;
-    io_funcs.read  = &cookie_read;
-    io_funcs.write = &cookie_write;
-    io_funcs.seek  = &cookie_seek;
-    io_funcs.close = 0;
-
-    m_file = fopencookie(reinterpret_cast<void*>(this), "r+", io_funcs);
-  }
-
-  // Close the file
-  FILE_Cookie::~FILE_Cookie() { std::fclose(m_file); }
-
-  FILE*       FILE_Cookie::file()       { return m_file; }
-  const FILE* FILE_Cookie::file() const { return m_file; }
-
-  bool FILE_Cookie::is_input()  const { return m_istr; }
-  bool FILE_Cookie::is_output() const { return m_ostr; }
-
-  std::istream&       FILE_Cookie::istr()       { return *m_istr; }
-  const std::istream& FILE_Cookie::istr() const { return *m_istr; }
-  std::ostream&       FILE_Cookie::ostr()       { return *m_ostr; }
-  const std::ostream& FILE_Cookie::ostr() const { return *m_ostr; }
-}