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9974cec26b
This clarifies the meaning a bit. Don’t change the logic associated with it. Add a few comments to clarify things further. Based on work done by Emmanuel Fleury. Signed-off-by: Philip Withnall <withnall@endlessm.com> Fixes: #77
178 lines
4.9 KiB
C
178 lines
4.9 KiB
C
/* gstdio.h - GFilename wrappers for C library functions
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*
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* Copyright 2004 Tor Lillqvist
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_STDIO_H__
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#define __G_STDIO_H__
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#include <glib/gprintf.h>
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#include <sys/stat.h>
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G_BEGIN_DECLS
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#if (defined (__MINGW64_VERSION_MAJOR) || defined (_MSC_VER)) && !defined(_WIN64)
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/* Make it clear that we mean the struct with 32-bit st_size and
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* 32-bit st_*time fields as that is how the 32-bit GLib DLL normally
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* has been compiled. If you get a compiler warning when calling
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* g_stat(), do take it seriously and make sure that the type of
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* struct stat the code in GLib fills in matches the struct the type
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* of struct stat you pass to g_stat(). To avoid hassle, to get file
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* attributes just use the GIO API instead which doesn't use struct
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* stat.
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*
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* Sure, it would be nicer to use a struct with 64-bit st_size and
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* 64-bit st_*time fields, but changing that now would break ABI. And
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* in MinGW, a plain "struct stat" is the one with 32-bit st_size and
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* st_*time fields.
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*/
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typedef struct _stat32 GStatBuf;
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#elif defined(__MINGW64_VERSION_MAJOR) && defined(_WIN64)
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typedef struct _stat64 GStatBuf;
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#else
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typedef struct stat GStatBuf;
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#endif
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#if defined(G_OS_UNIX) && !defined(G_STDIO_WRAP_ON_UNIX)
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/* Just pass on to the system functions, so there's no potential for data
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* format mismatches, especially with large file interfaces.
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* A few functions can't be handled in this way, since they are not defined
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* in a portable system header that we could include here.
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*
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* #G_STDIO_WRAP_ON_UNIX is not public API and its behaviour is not guaranteed
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* in future.
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*/
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#ifndef __GTK_DOC_IGNORE__
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#define g_chmod chmod
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#define g_open open
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#define g_creat creat
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#define g_rename rename
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#define g_mkdir mkdir
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#define g_stat stat
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#define g_lstat lstat
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#define g_remove remove
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#define g_fopen fopen
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#define g_freopen freopen
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#define g_utime utime
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#endif
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GLIB_AVAILABLE_IN_ALL
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int g_access (const gchar *filename,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_chdir (const gchar *path);
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GLIB_AVAILABLE_IN_ALL
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int g_unlink (const gchar *filename);
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GLIB_AVAILABLE_IN_ALL
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int g_rmdir (const gchar *filename);
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#else /* ! G_OS_UNIX */
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/* Wrappers for C library functions that take pathname arguments. On
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* Unix, the pathname is a file name as it literally is in the file
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* system. On well-maintained systems with consistent users who know
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* what they are doing and no exchange of files with others this would
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* be a well-defined encoding, preferably UTF-8. On Windows, the
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* pathname is always in UTF-8, even if that is not the on-disk
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* encoding, and not the encoding accepted by the C library or Win32
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* API.
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*/
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GLIB_AVAILABLE_IN_ALL
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int g_access (const gchar *filename,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_chmod (const gchar *filename,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_open (const gchar *filename,
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int flags,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_creat (const gchar *filename,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_rename (const gchar *oldfilename,
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const gchar *newfilename);
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GLIB_AVAILABLE_IN_ALL
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int g_mkdir (const gchar *filename,
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int mode);
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GLIB_AVAILABLE_IN_ALL
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int g_chdir (const gchar *path);
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GLIB_AVAILABLE_IN_ALL
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int g_stat (const gchar *filename,
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GStatBuf *buf);
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GLIB_AVAILABLE_IN_ALL
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int g_lstat (const gchar *filename,
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GStatBuf *buf);
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GLIB_AVAILABLE_IN_ALL
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int g_unlink (const gchar *filename);
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GLIB_AVAILABLE_IN_ALL
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int g_remove (const gchar *filename);
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GLIB_AVAILABLE_IN_ALL
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int g_rmdir (const gchar *filename);
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GLIB_AVAILABLE_IN_ALL
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FILE *g_fopen (const gchar *filename,
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const gchar *mode);
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GLIB_AVAILABLE_IN_ALL
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FILE *g_freopen (const gchar *filename,
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const gchar *mode,
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FILE *stream);
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struct utimbuf; /* Don't need the real definition of struct utimbuf when just
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* including this header.
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*/
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GLIB_AVAILABLE_IN_ALL
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int g_utime (const gchar *filename,
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struct utimbuf *utb);
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#endif /* G_OS_UNIX */
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GLIB_AVAILABLE_IN_2_36
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gboolean g_close (gint fd,
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GError **error);
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G_END_DECLS
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#endif /* __G_STDIO_H__ */
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