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Diffstat (limited to 'src/windows_port.h')
| -rw-r--r-- | src/windows_port.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/windows_port.h b/src/windows_port.h new file mode 100644 index 0000000..246f715 --- /dev/null +++ b/src/windows_port.h @@ -0,0 +1,127 @@ +/* Copyright (c) 2009, 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 + * + * 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 GFLAGS_WINDOWS_PORT_H_ +#define GFLAGS_WINDOWS_PORT_H_ + +#include "config.h" + +// This must be defined before the windows.h is included. +// It's needed for mutex.h, to give access to the TryLock method. +# if !defined(_WIN32_WINNT) && !(defined( __MINGW32__) || defined(__MINGW64__)) +# define _WIN32_WINNT 0x0400 +# endif +// We always want minimal includes +#ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include <windows.h> +#include <direct.h> /* for mkdir */ +#include <stdlib.h> /* for _putenv, getenv */ +#include <stdio.h> /* need this to override stdio's snprintf, also defines _unlink used by unit tests */ +#include <stdarg.h> /* util.h uses va_copy */ +#include <string.h> /* for _stricmp and _strdup */ + +/* We can't just use _vsnprintf and _snprintf as drop-in-replacements, + * because they don't always NUL-terminate. :-( We also can't use the + * name vsnprintf, since windows defines that (but not snprintf (!)). + */ +#if !defined(__MINGW32__) && !defined(__MINGW64__) /* mingw already defines */ +extern GFLAGS_DLL_DECL int snprintf(char *str, size_t size, + const char *format, ...); +extern int GFLAGS_DLL_DECL safe_vsnprintf(char *str, size_t size, + const char *format, va_list ap); +#define vsnprintf(str, size, format, ap) safe_vsnprintf(str, size, format, ap) +#define va_copy(dst, src) (dst) = (src) +#endif /* #if !defined(__MINGW32__) && !defined(__MINGW64__) */ + +#ifdef _MSC_VER +# pragma warning(push) +# pragma warning(disable: 4996) // ignore getenv security warning +#endif +inline void setenv(const char* name, const char* value, int) { + // In windows, it's impossible to set a variable to the empty string. + // We handle this by setting it to "0" and the NUL-ing out the \0. + // That is, we putenv("FOO=0") and then find out where in memory the + // putenv wrote "FOO=0", and change it in-place to "FOO=\0". + // c.f. http://svn.apache.org/viewvc/stdcxx/trunk/tests/src/environ.cpp?r1=611451&r2=637508&pathrev=637508 + static const char* const kFakeZero = "0"; + if (*value == '\0') + value = kFakeZero; + // Apparently the semantics of putenv() is that the input + // must live forever, so we leak memory here. :-( + const size_t nameval_len = strlen(name) + 1 + strlen(value) + 1; + char* nameval = reinterpret_cast<char*>(malloc(nameval_len)); + snprintf(nameval, nameval_len, "%s=%s", name, value); + _putenv(nameval); + if (value == kFakeZero) { + nameval[nameval_len - 2] = '\0'; // works when putenv() makes no copy + if (*getenv(name) != '\0') + *getenv(name) = '\0'; // works when putenv() copies nameval + } +} +#ifdef _MSC_VER +# pragma warning(pop) +#endif + +#define strcasecmp _stricmp + +#if defined(_MSC_VER) && _MSC_VER >= 1400 +#define strdup _strdup +#define unlink _unlink +#endif + +#define PRId32 "d" +#define PRIu32 "u" +#define PRId64 "I64d" +#define PRIu64 "I64u" + +#ifndef __MINGW32__ +#define strtoq _strtoi64 +#define strtouq _strtoui64 +#define strtoll _strtoi64 +#define strtoull _strtoui64 +#define atoll _atoi64 +#endif + +#ifndef PATH_MAX +#define PATH_MAX 1024 +#endif + +#endif /* GFLAGS_WINDOWS_PORT_H_ */ |