Virtual Method
GioFilereplace_readwrite
since: 2.22
Declaration [src]
GFileIOStream*
replace_readwrite (
GFile* file,
const char* etag,
gboolean make_backup,
GFileCreateFlags flags,
GCancellable* cancellable,
GError** error
)
Description [src]
Returns an output stream for overwriting the file in readwrite mode, possibly creating a backup copy of the file first. If the file doesn’t exist, it will be created.
For details about the behaviour, see g_file_replace() which does the
same thing but returns an output stream only.
Note that in many non-local file cases read and write streams are not supported, so make sure you really need to do read and write streaming, rather than just opening for reading or writing.
Available since: 2.22
Parameters
etag-
Type:
const char*An optional entity tag for the current
GFile, orNULLto ignore.The argument can be NULL.The data is owned by the caller of the method. The value is a NUL terminated UTF-8 string. make_backup-
Type:
gbooleanTRUEif a backup should be created. 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: GFileIOStream
A GFileIOStream 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. |