*
* You should have received a copy of the GNU Lesser General Public
* License along with GLib; see the file COPYING.LIB. If not,
- * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
-#include "galias.h"
+#include "glibconfig.h"
-#include "glib.h"
+#define G_STDIO_NO_WRAP_ON_UNIX
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
-#ifdef HAVE_UNISTD_H
+#ifdef G_OS_UNIX
#include <unistd.h>
#endif
#ifdef G_OS_WIN32
+#include <windows.h>
#include <errno.h>
#include <wchar.h>
#include <direct.h>
#include <io.h>
+#include <sys/utime.h>
+#else
+#include <utime.h>
+#include <errno.h>
#endif
#include "gstdio.h"
+
#if !defined (G_OS_UNIX) && !defined (G_OS_WIN32)
#error Please port this to your operating system
#endif
+#if defined (_MSC_VER) && !defined(_WIN64)
+#undef _wstat
+#define _wstat _wstat32
+#endif
+
+/**
+ * g_access:
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @mode: as in access()
+ *
+ * A wrapper for the POSIX access() function. This function is used to
+ * test a pathname for one or several of read, write or execute
+ * permissions, or just existence.
+ *
+ * On Windows, the file protection mechanism is not at all POSIX-like,
+ * and the underlying function in the C library only checks the
+ * FAT-style READONLY attribute, and does not look at the ACL of a
+ * file at all. This function is this in practise almost useless on
+ * Windows. Software that needs to handle file permissions on Windows
+ * more exactly should use the Win32 API.
+ *
+ * See your C library manual for more details about access().
+ *
+ * Returns: zero if the pathname refers to an existing file system
+ * object that has all the tested permissions, or -1 otherwise
+ * or on error.
+ *
+ * Since: 2.8
+ */
+int
+g_access (const gchar *filename,
+ int mode)
+{
+#ifdef G_OS_WIN32
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+#ifndef X_OK
+#define X_OK 1
+#endif
+
+ retval = _waccess (wfilename, mode & ~X_OK);
+ save_errno = errno;
+
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
+#else
+ return access (filename, mode);
+#endif
+}
+
+/**
+ * g_chmod:
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @mode: as in chmod()
+ *
+ * A wrapper for the POSIX chmod() function. The chmod() function is
+ * used to set the permissions of a file system object.
+ *
+ * On Windows the file protection mechanism is not at all POSIX-like,
+ * and the underlying chmod() function in the C library just sets or
+ * clears the FAT-style READONLY attribute. It does not touch any
+ * ACL. Software that needs to manage file permissions on Windows
+ * exactly should use the Win32 API.
+ *
+ * See your C library manual for more details about chmod().
+ *
+ * Returns: 0 if the operation succeeded, -1 on error
+ *
+ * Since: 2.8
+ */
+int
+g_chmod (const gchar *filename,
+ int mode)
+{
+#ifdef G_OS_WIN32
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ retval = _wchmod (wfilename, mode);
+ save_errno = errno;
+
+ g_free (wfilename);
+ errno = save_errno;
+ return retval;
+#else
+ return chmod (filename, mode);
+#endif
+}
/**
* g_open:
- * @filename: a pathname in the GLib file name encoding
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
* @flags: as in open()
* @mode: as in open()
*
* A wrapper for the POSIX open() function. The open() function is
- * used to convert a pathname into a file descriptor. Note that on
- * POSIX systems file descriptors are implemented by the operating
+ * used to convert a pathname into a file descriptor.
+ *
+ * On POSIX systems file descriptors are implemented by the operating
* system. On Windows, it's the C library that implements open() and
- * file descriptors. The actual Windows API for opening files is
- * something different.
+ * file descriptors. The actual Win32 API for opening files is quite
+ * different, see MSDN documentation for CreateFile(). The Win32 API
+ * uses file handles, which are more randomish integers, not small
+ * integers like file descriptors.
+ *
+ * Because file descriptors are specific to the C library on Windows,
+ * the file descriptor returned by this function makes sense only to
+ * functions in the same C library. Thus if the GLib-using code uses a
+ * different C library than GLib does, the file descriptor returned by
+ * this function cannot be passed to C library functions like write()
+ * or read().
*
- * See the C library manual for more details about open().
+ * See your C library manual for more details about open().
*
- * Returns: a new file descriptor, or -1 if an error occurred. The
- * return value can be used exactly like the return value from open().
+ * Returns: a new file descriptor, or -1 if an error occurred.
+ * The return value can be used exactly like the return value
+ * from open().
*
* Since: 2.6
*/
int mode)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
{
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval = _wopen (wfilename, flags, mode);
- int save_errno = errno;
-
- g_free (wfilename);
-
- errno = save_errno;
- return retval;
+ errno = EINVAL;
+ return -1;
}
- else
- {
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval = open (cp_filename, flags, mode);
- int save_errno = errno;
- g_free (cp_filename);
+ retval = _wopen (wfilename, flags, mode);
+ save_errno = errno;
+
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
+#else
+ int fd;
+ do
+ fd = open (filename, flags, mode);
+ while (G_UNLIKELY (fd == -1 && errno == EINTR));
+ return fd;
+#endif
+}
+
+/**
+ * g_creat:
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @mode: as in creat()
+ *
+ * A wrapper for the POSIX creat() function. The creat() function is
+ * used to convert a pathname into a file descriptor, creating a file
+ * if necessary.
- errno = save_errno;
- return retval;
+ * On POSIX systems file descriptors are implemented by the operating
+ * system. On Windows, it's the C library that implements creat() and
+ * file descriptors. The actual Windows API for opening files is
+ * different, see MSDN documentation for CreateFile(). The Win32 API
+ * uses file handles, which are more randomish integers, not small
+ * integers like file descriptors.
+ *
+ * Because file descriptors are specific to the C library on Windows,
+ * the file descriptor returned by this function makes sense only to
+ * functions in the same C library. Thus if the GLib-using code uses a
+ * different C library than GLib does, the file descriptor returned by
+ * this function cannot be passed to C library functions like write()
+ * or read().
+ *
+ * See your C library manual for more details about creat().
+ *
+ * Returns: a new file descriptor, or -1 if an error occurred.
+ * The return value can be used exactly like the return value
+ * from creat().
+ *
+ * Since: 2.8
+ */
+int
+g_creat (const gchar *filename,
+ int mode)
+{
+#ifdef G_OS_WIN32
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
+ {
+ errno = EINVAL;
+ return -1;
}
+
+ retval = _wcreat (wfilename, mode);
+ save_errno = errno;
+
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
#else
- return open (filename, flags, mode);
+ return creat (filename, mode);
#endif
}
/**
* g_rename:
- * @oldfilename: a pathname in the GLib file name encoding
+ * @oldfilename: a pathname in the GLib file name encoding (UTF-8 on Windows)
* @newfilename: a pathname in the GLib file name encoding
*
* A wrapper for the POSIX rename() function. The rename() function
* renames a file, moving it between directories if required.
*
* See your C library manual for more details about how rename() works
- * on your system. Note in particular that on Windows, it is in
- * general not possible to rename a file if a file with the new name
- * already exists. Also it is not possible in general to rename an
- * open file.
+ * on your system. It is not possible in general on Windows to rename
+ * a file that is open to some process.
*
* Returns: 0 if the renaming succeeded, -1 if an error occurred
*
const gchar *newfilename)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *woldfilename = g_utf8_to_utf16 (oldfilename, -1, NULL, NULL, NULL);
+ wchar_t *wnewfilename;
+ int retval;
+ int save_errno = 0;
+
+ if (woldfilename == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ wnewfilename = g_utf8_to_utf16 (newfilename, -1, NULL, NULL, NULL);
+
+ if (wnewfilename == NULL)
{
- wchar_t *woldfilename = g_utf8_to_utf16 (oldfilename, -1, NULL, NULL, NULL);
- wchar_t *wnewfilename = g_utf8_to_utf16 (newfilename, -1, NULL, NULL, NULL);
- int retval = _wrename (woldfilename, wnewfilename);
- int save_errno = errno;
-
g_free (woldfilename);
- g_free (wnewfilename);
-
- errno = save_errno;
- return retval;
+ errno = EINVAL;
+ return -1;
}
+
+ if (MoveFileExW (woldfilename, wnewfilename, MOVEFILE_REPLACE_EXISTING))
+ retval = 0;
else
{
- gchar *cp_oldfilename = g_locale_from_utf8 (oldfilename, -1, NULL, NULL, NULL);
- gchar *cp_newfilename = g_locale_from_utf8 (newfilename, -1, NULL, NULL, NULL);
- int retval = rename (cp_oldfilename, cp_newfilename);
- int save_errno = errno;
-
- g_free (cp_oldfilename);
- g_free (cp_newfilename);
-
- errno = save_errno;
- return retval;
+ retval = -1;
+ switch (GetLastError ())
+ {
+#define CASE(a,b) case ERROR_##a: save_errno = b; break
+ CASE (FILE_NOT_FOUND, ENOENT);
+ CASE (PATH_NOT_FOUND, ENOENT);
+ CASE (ACCESS_DENIED, EACCES);
+ CASE (NOT_SAME_DEVICE, EXDEV);
+ CASE (LOCK_VIOLATION, EACCES);
+ CASE (SHARING_VIOLATION, EACCES);
+ CASE (FILE_EXISTS, EEXIST);
+ CASE (ALREADY_EXISTS, EEXIST);
+#undef CASE
+ default: save_errno = EIO;
+ }
}
+
+ g_free (woldfilename);
+ g_free (wnewfilename);
+
+ errno = save_errno;
+ return retval;
#else
return rename (oldfilename, newfilename);
#endif
/**
* g_mkdir:
- * @filename: a pathname in the GLib file name encoding
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
* @mode: permissions to use for the newly created directory
*
* A wrapper for the POSIX mkdir() function. The mkdir() function
* attempts to create a directory with the given name and permissions.
+ * The mode argument is ignored on Windows.
*
- * See the C library manual for more details about mkdir().
+ * See your C library manual for more details about mkdir().
*
* Returns: 0 if the directory was successfully created, -1 if an error
* occurred
int mode)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
- {
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval = _wmkdir (wfilename);
- int save_errno = errno;
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
- g_free (wfilename);
-
- errno = save_errno;
- return retval;
- }
- else
+ if (wfilename == NULL)
{
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval = mkdir (cp_filename);
- int save_errno = errno;
+ errno = EINVAL;
+ return -1;
+ }
- g_free (cp_filename);
+ retval = _wmkdir (wfilename);
+ save_errno = errno;
- errno = save_errno;
- return retval;
- }
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
#else
return mkdir (filename, mode);
#endif
}
/**
+ * g_chdir:
+ * @path: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ *
+ * A wrapper for the POSIX chdir() function. The function changes the
+ * current directory of the process to @path.
+ *
+ * See your C library manual for more details about chdir().
+ *
+ * Returns: 0 on success, -1 if an error occurred.
+ *
+ * Since: 2.8
+ */
+int
+g_chdir (const gchar *path)
+{
+#ifdef G_OS_WIN32
+ wchar_t *wpath = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wpath == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ retval = _wchdir (wpath);
+ save_errno = errno;
+
+ g_free (wpath);
+
+ errno = save_errno;
+ return retval;
+#else
+ return chdir (path);
+#endif
+}
+
+/**
+ * GStatBuf:
+ *
+ * A type corresponding to the appropriate struct type for the stat()
+ * system call, depending on the platform and/or compiler being used.
+ *
+ * See g_stat() for more information.
+ */
+/**
* g_stat:
- * @filename: a pathname in the GLib file name encoding
- * @buf: a pointer to a <structname>stat</structname> struct, which
- * will be filled with the file information
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @buf: a pointer to a stat struct, which will be filled with the file
+ * information
*
- * A wrapper for the POSIX stat() function. The stat() function
- * returns information about a file.
+ * A wrapper for the POSIX stat() function. The stat() function
+ * returns information about a file. On Windows the stat() function in
+ * the C library checks only the FAT-style READONLY attribute and does
+ * not look at the ACL at all. Thus on Windows the protection bits in
+ * the @st_mode field are a fabrication of little use.
*
- * See the C library manual for more details about stat().
+ * On Windows the Microsoft C libraries have several variants of the
+ * stat struct and stat() function with names like _stat(), _stat32(),
+ * _stat32i64() and _stat64i32(). The one used here is for 32-bit code
+ * the one with 32-bit size and time fields, specifically called _stat32().
*
- * Returns: 0 if the information was successfully retrieved, -1 if an error
- * occurred
+ * In Microsoft's compiler, by default struct stat means one with
+ * 64-bit time fields while in MinGW struct stat is the legacy one
+ * with 32-bit fields. To hopefully clear up this messs, the gstdio.h
+ * header defines a type #GStatBuf which is the appropriate struct type
+ * depending on the platform and/or compiler being used. On POSIX it
+ * is just struct stat, but note that even on POSIX platforms, stat()
+ * might be a macro.
+ *
+ * See your C library manual for more details about stat().
+ *
+ * Returns: 0 if the information was successfully retrieved,
+ * -1 if an error occurred
*
* Since: 2.6
*/
int
g_stat (const gchar *filename,
- struct stat *buf)
+ GStatBuf *buf)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+ int len;
+
+ if (wfilename == NULL)
{
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval = _wstat (wfilename, (struct _stat *) buf);
- int save_errno = errno;
+ errno = EINVAL;
+ return -1;
+ }
- g_free (wfilename);
+ len = wcslen (wfilename);
+ while (len > 0 && G_IS_DIR_SEPARATOR (wfilename[len-1]))
+ len--;
+ if (len > 0 &&
+ (!g_path_is_absolute (filename) || len > g_path_skip_root (filename) - filename))
+ wfilename[len] = '\0';
- errno = save_errno;
- return retval;
- }
- else
- {
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval = stat (cp_filename, buf);
- int save_errno = errno;
+ retval = _wstat (wfilename, buf);
+ save_errno = errno;
- g_free (cp_filename);
+ g_free (wfilename);
- errno = save_errno;
- return retval;
- }
+ errno = save_errno;
+ return retval;
#else
return stat (filename, buf);
#endif
/**
* g_lstat:
- * @filename: a pathname in the GLib file name encoding
- * @buf: a pointer to a <structname>stat</structname> struct, which
- * will be filled with the file information
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @buf: a pointer to a stat struct, which will be filled with the file
+ * information
*
* A wrapper for the POSIX lstat() function. The lstat() function is
* like stat() except that in the case of symbolic links, it returns
* refers to. If the system does not support symbolic links g_lstat()
* is identical to g_stat().
*
- * See the C library manual for more details about lstat().
+ * See your C library manual for more details about lstat().
*
- * Returns: 0 if the information was successfully retrieved, -1 if an error
- * occurred
+ * Returns: 0 if the information was successfully retrieved,
+ * -1 if an error occurred
*
* Since: 2.6
*/
int
g_lstat (const gchar *filename,
- struct stat *buf)
+ GStatBuf *buf)
{
#ifdef HAVE_LSTAT
/* This can't be Win32, so don't do the widechar dance. */
/**
* g_unlink:
- * @filename: a pathname in the GLib file name encoding
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
*
* A wrapper for the POSIX unlink() function. The unlink() function
* deletes a name from the filesystem. If this was the last link to the
g_unlink (const gchar *filename)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
- {
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval = _wunlink (wfilename);
- int save_errno = errno;
-
- g_free (wfilename);
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
- errno = save_errno;
- return retval;
- }
- else
+ if (wfilename == NULL)
{
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval = unlink (cp_filename);
- int save_errno = errno;
+ errno = EINVAL;
+ return -1;
+ }
- g_free (cp_filename);
+ retval = _wunlink (wfilename);
+ save_errno = errno;
- errno = save_errno;
- return retval;
- }
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
#else
return unlink (filename);
#endif
/**
* g_remove:
- * @filename: a pathname in the GLib file name encoding
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
*
* A wrapper for the POSIX remove() function. The remove() function
* deletes a name from the filesystem.
* Windows, it is in general not possible to remove a file that is
* open to some process, or mapped into memory.
*
+ * If this function fails on Windows you can't infer too much from the
+ * errno value. rmdir() is tried regardless of what caused remove() to
+ * fail. Any errno value set by remove() will be overwritten by that
+ * set by rmdir().
+ *
* Returns: 0 if the file was successfully removed, -1 if an error
* occurred
*
g_remove (const gchar *filename)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
{
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval;
- int save_errno;
+ errno = EINVAL;
+ return -1;
+ }
- retval = _wremove (wfilename);
- if (retval == -1)
- retval = _wrmdir (wfilename);
- save_errno = errno;
+ retval = _wremove (wfilename);
+ if (retval == -1)
+ retval = _wrmdir (wfilename);
+ save_errno = errno;
- g_free (wfilename);
+ g_free (wfilename);
- errno = save_errno;
- return retval;
- }
- else
- {
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval;
- int save_errno;
-
- retval = remove (cp_filename);
- if (retval == -1)
- retval = rmdir (cp_filename);
- save_errno = errno;
-
- g_free (cp_filename);
-
- errno = save_errno;
- return retval;
- }
+ errno = save_errno;
+ return retval;
#else
return remove (filename);
#endif
/**
* g_rmdir:
- * @filename: a pathname in the GLib file name encoding
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
*
* A wrapper for the POSIX rmdir() function. The rmdir() function
* deletes a directory from the filesystem.
g_rmdir (const gchar *filename)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
- {
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- int retval = _wrmdir (wfilename);
- int save_errno = errno;
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
- g_free (wfilename);
-
- errno = save_errno;
- return retval;
- }
- else
+ if (wfilename == NULL)
{
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- int retval = rmdir (cp_filename);
- int save_errno = errno;
+ errno = EINVAL;
+ return -1;
+ }
+
+ retval = _wrmdir (wfilename);
+ save_errno = errno;
- g_free (cp_filename);
+ g_free (wfilename);
- errno = save_errno;
- return retval;
- }
+ errno = save_errno;
+ return retval;
#else
return rmdir (filename);
#endif
/**
* g_fopen:
- * @filename: a pathname in the GLib file name encoding
- * @mode: a string describing the mode in which the file should be
- * opened
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @mode: a string describing the mode in which the file should be opened
*
- * A wrapper for the POSIX fopen() function. The fopen() function opens
- * a file and associates a new stream with it.
+ * A wrapper for the stdio fopen() function. The fopen() function
+ * opens a file and associates a new stream with it.
*
- * See the C library manual for more details about fopen().
+ * Because file descriptors are specific to the C library on Windows,
+ * and a file descriptor is part of the FILE struct, the FILE* returned
+ * by this function makes sense only to functions in the same C library.
+ * Thus if the GLib-using code uses a different C library than GLib does,
+ * the FILE* returned by this function cannot be passed to C library
+ * functions like fprintf() or fread().
*
- * Returns: A <typename>FILE</typename> pointer if the file was successfully
- * opened, or %NULL if an error occurred
+ * See your C library manual for more details about fopen().
+ *
+ * Returns: A FILE* if the file was successfully opened, or %NULL if
+ * an error occurred
*
* Since: 2.6
*/
const gchar *mode)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ wchar_t *wmode;
+ FILE *retval;
+ int save_errno;
+
+ if (wfilename == NULL)
{
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- wchar_t *wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL);
- FILE *retval = _wfopen (wfilename, wmode);
- int save_errno = errno;
+ errno = EINVAL;
+ return NULL;
+ }
- g_free (wfilename);
- g_free (wmode);
+ wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL);
- errno = save_errno;
- return retval;
- }
- else
+ if (wmode == NULL)
{
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- FILE *retval = fopen (cp_filename, mode);
- int save_errno = errno;
+ g_free (wfilename);
+ errno = EINVAL;
+ return NULL;
+ }
- g_free (cp_filename);
+ retval = _wfopen (wfilename, wmode);
+ save_errno = errno;
- errno = save_errno;
- return retval;
- }
+ g_free (wfilename);
+ g_free (wmode);
+
+ errno = save_errno;
+ return retval;
#else
return fopen (filename, mode);
#endif
/**
* g_freopen:
- * @filename: a pathname in the GLib file name encoding
- * @mode: a string describing the mode in which the file should be
- * opened
- * @stream: an existing stream which will be reused, or %NULL
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @mode: a string describing the mode in which the file should be opened
+ * @stream: (allow-none): an existing stream which will be reused, or %NULL
*
* A wrapper for the POSIX freopen() function. The freopen() function
* opens a file and associates it with an existing stream.
*
- * See the C library manual for more details about freopen().
+ * See your C library manual for more details about freopen().
*
- * Returns: A <typename>FILE</typename> pointer if the file was successfully
- * opened, or %NULL if an error occurred.
+ * Returns: A FILE* if the file was successfully opened, or %NULL if
+ * an error occurred.
*
* Since: 2.6
*/
FILE *stream)
{
#ifdef G_OS_WIN32
- if (G_WIN32_HAVE_WIDECHAR_API ())
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ wchar_t *wmode;
+ FILE *retval;
+ int save_errno;
+
+ if (wfilename == NULL)
{
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- wchar_t *wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL);
- FILE *retval = _wfreopen (wfilename, wmode, stream);
- int save_errno = errno;
+ errno = EINVAL;
+ return NULL;
+ }
+
+ wmode = g_utf8_to_utf16 (mode, -1, NULL, NULL, NULL);
+ if (wmode == NULL)
+ {
g_free (wfilename);
- g_free (wmode);
-
- errno = save_errno;
- return retval;
+ errno = EINVAL;
+ return NULL;
}
- else
- {
- gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
- FILE *retval = freopen (cp_filename, mode, stream);
- int save_errno = errno;
+
+ retval = _wfreopen (wfilename, wmode, stream);
+ save_errno = errno;
- g_free (cp_filename);
+ g_free (wfilename);
+ g_free (wmode);
- errno = save_errno;
- return retval;
- }
+ errno = save_errno;
+ return retval;
#else
return freopen (filename, mode, stream);
#endif
}
+
+/**
+ * g_utime:
+ * @filename: a pathname in the GLib file name encoding (UTF-8 on Windows)
+ * @utb: a pointer to a struct utimbuf.
+ *
+ * A wrapper for the POSIX utime() function. The utime() function
+ * sets the access and modification timestamps of a file.
+ *
+ * See your C library manual for more details about how utime() works
+ * on your system.
+ *
+ * Returns: 0 if the operation was successful, -1 if an error occurred
+ *
+ * Since: 2.18
+ */
+int
+g_utime (const gchar *filename,
+ struct utimbuf *utb)
+{
+#ifdef G_OS_WIN32
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
+ int retval;
+ int save_errno;
+
+ if (wfilename == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ retval = _wutime (wfilename, (struct _utimbuf*) utb);
+ save_errno = errno;
+
+ g_free (wfilename);
+
+ errno = save_errno;
+ return retval;
+#else
+ return utime (filename, utb);
+#endif
+}
+
+/**
+ * g_close:
+ * @fd: A file descriptor
+ * @error: a #GError
+ *
+ * This wraps the close() call; in case of error, %errno will be
+ * preserved, but the error will also be stored as a #GError in @error.
+ *
+ * Besides using #GError, there is another major reason to prefer this
+ * function over the call provided by the system; on Unix, it will
+ * attempt to correctly handle %EINTR, which has platform-specific
+ * semantics.
+ *
+ * Since: 2.36
+ */
+gboolean
+g_close (gint fd,
+ GError **error)
+{
+ int res;
+ res = close (fd);
+ /* Just ignore EINTR for now; a retry loop is the wrong thing to do
+ * on Linux at least. Anyone who wants to add a conditional check
+ * for e.g. HP-UX is welcome to do so later...
+ *
+ * http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html
+ * https://bugzilla.gnome.org/show_bug.cgi?id=682819
+ * http://utcc.utoronto.ca/~cks/space/blog/unix/CloseEINTR
+ * https://sites.google.com/site/michaelsafyan/software-engineering/checkforeintrwheninvokingclosethinkagain
+ */
+ if (G_UNLIKELY (res == -1 && errno == EINTR))
+ return TRUE;
+ else if (res == -1)
+ {
+ int errsv = errno;
+ g_set_error_literal (error, G_FILE_ERROR,
+ g_file_error_from_errno (errsv),
+ g_strerror (errsv));
+ errno = errsv;
+ return FALSE;
+ }
+ return TRUE;
+}
+
projects / platform / upstream / glib.git / blobdiff