src/windows/port.h

/* Copyright (c) 2023, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ---
 * Author: Craig Silverstein
 * Copied from google-perftools and modified by Shinichiro Hamaji
 *
 * These are some portability typedefs and defines to make it a bit
 * easier to compile this code under VC++.
 *
 * Several of these are taken from glib:
 *    http://developer.gnome.org/doc/API/glib/glib-windows-compatability-functions.html
 */

#ifndef CTEMPLATE_WINDOWS_PORT_H_
#define CTEMPLATE_WINDOWS_PORT_H_

#include "config.h"

#if defined(GLOG_USE_GLOG_EXPORT)
#  include "glog/export.h"
#endif

#if !defined(GLOG_EXPORT)
#  error "port.h" was not included correctly.
#endif

#ifdef _WIN32

#  ifndef WIN32_LEAN_AND_MEAN
#    define WIN32_LEAN_AND_MEAN /* We always want minimal includes */
#  endif

#  include <direct.h>  /* for _getcwd() */
#  include <io.h>      /* because we so often use open/close/etc */
#  include <process.h> /* for _getpid() */
#  include <windows.h>
#  include <winsock.h> /* for gethostname */

#  include <cstdarg> /* template_dictionary.cc uses va_copy */
#  include <cstring> /* for _strnicmp(), strerror_s() */
#  include <ctime>   /* for localtime_s() */
/* Note: the C++ #includes are all together at the bottom.  This file is
 * used by both C and C++ code, so we put all the C++ together.
 */

#  ifdef _MSC_VER

/* 4244: otherwise we get problems when substracting two size_t's to an int
 * 4251: it's complaining about a private struct I've chosen not to dllexport
 * 4355: we use this in a constructor, but we do it safely
 * 4715: for some reason VC++ stopped realizing you can't return after abort()
 * 4800: we know we're casting ints/char*'s to bools, and we're ok with that
 * 4996: Yes, we're ok using "unsafe" functions like fopen() and strerror()
 * 4312: Converting uint32_t to a pointer when testing %p
 * 4267: also subtracting two size_t to int
 * 4722: Destructor never returns due to abort()
 */
#    pragma warning(disable : 4244 4251 4355 4715 4800 4996 4267 4312 4722)

/* file I/O */
#    define PATH_MAX 1024
#    define popen _popen
#    define pclose _pclose
#    define R_OK 04 /* read-only (for access()) */
#    define S_ISDIR(m) (((m)&_S_IFMT) == _S_IFDIR)

#    define O_WRONLY _O_WRONLY
#    define O_CREAT _O_CREAT
#    define O_EXCL _O_EXCL

#    define S_IRUSR S_IREAD
#    define S_IWUSR S_IWRITE

/* Not quite as lightweight as a hard-link, but more than good enough for us. */
#    define link(oldpath, newpath) CopyFileA(oldpath, newpath, false)

#    define strcasecmp _stricmp
#    define strncasecmp _strnicmp

/* In windows-land, hash<> is called hash_compare<> (from xhash.h) */
/* VC11 provides std::hash */
#    if defined(_MSC_VER) && (_MSC_VER < 1700)
#      define hash hash_compare
#    endif

/* Windows doesn't support specifying the number of buckets as a
 * hash_map constructor arg, so we leave this blank.
 */
#    define CTEMPLATE_SMALL_HASHTABLE

#    define DEFAULT_TEMPLATE_ROOTDIR ".."

#  endif  // _MSC_VER

namespace google {
inline namespace glog_internal_namespace_ {
#  ifndef HAVE_LOCALTIME_R
GLOG_NO_EXPORT std::tm* localtime_r(const std::time_t* timep, std::tm* result);
#  endif  // not HAVE_LOCALTIME_R

#  ifndef HAVE_GMTIME_R
GLOG_NO_EXPORT std::tm* gmtime_r(const std::time_t* timep, std::tm* result);
#  endif  // not HAVE_GMTIME_R

GLOG_NO_EXPORT
inline char* strerror_r(int errnum, char* buf, std::size_t buflen) {
  strerror_s(buf, buflen, errnum);
  return buf;
}
}  // namespace glog_internal_namespace_
}  // namespace google

#endif /* _WIN32 */

#endif /* CTEMPLATE_WINDOWS_PORT_H_ */