Virtual Method
GioFileappend_to
Declaration [src]
GFileOutputStream*
append_to (
GFile* file,
GFileCreateFlags flags,
GCancellable* cancellable,
GError** error
)
Description [src]
Gets an output stream for appending data to the file. If the file doesn’t already exist it is created.
By default files created are generally readable by everyone,
but if you pass G_FILE_CREATE_PRIVATE in flags the file
will be made readable only to the current user, to the level that
is supported on the target filesystem.
If cancellable is not NULL, then the operation can be cancelled
by triggering the cancellable object from another thread. If the
operation was cancelled, the error G_IO_ERROR_CANCELLED will be returned.
Some file systems don’t allow all file names, and may return an
G_IO_ERROR_INVALID_FILENAME error. If the file is a directory the
G_IO_ERROR_IS_DIRECTORY error will be returned. Other errors are
possible too, and depend on what kind of filesystem the file is on.
Parameters
flags-
Type:
GFileCreateFlagsA set of
GFileCreateFlags. cancellable-
Type:
GCancellableOptional
GCancellableobject,NULLto ignore.The argument can be NULL.The data is owned by the caller of the method. error-
Type:
GError **The return location for a recoverable error.
The argument can be NULL.If the return location is not NULL, then you must initialize it to aNULLGError*.The argument will be left initialized to NULLby the virtual function if there are no errors.In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.
Return value
Type: GFileOutputStream
A GFileOutputStream, or NULL on error.
Free the returned object with g_object_unref().
| The caller of the method takes ownership of the returned data, and is responsible for freeing it. |