[ Version ( since = "2.22" ) ]
public virtual async FileIOStream create_readwrite_async (FileCreateFlags flags, int io_priority = DEFAULT, Cancellable? cancellable = null) throws Error
Asynchronously creates a new file and returns a stream for reading and writing to it.
The file must not already exist.
For more details, see create_readwrite which is the synchronous version of this call.
When the operation is finished, callback
will be called. You can then call
create_readwrite_async.end to get the result of the operation.
Example: Create a file, rw, async:
public static int main (string[] args) {
MainLoop loop = new MainLoop ();
// Create a file for reading and writing:
File file = File.new_for_path ("my-test.txt");
file.create_readwrite_async.begin (FileCreateFlags.PRIVATE, Priority.DEFAULT, null, (obj, res) => {;
try {
FileIOStream stream = file.create_readwrite_async.end (res);
stream.output_stream.write ("My first line\n".data);
} catch (Error e) {
print ("Error: %s\n", e.message);
}
loop.quit ();
});
loop.run ();
return 0;
}
valac --pkg gio-2.0 GLib.File.create_readwrite_async.vala
this |
input File |
flags |
a set of FileCreateFlags |
io_priority |
the I/O priority of the request |
cancellable |
optional Cancellable object, null to ignore |
callback |
a TaskReadyCallback to call when the request is satisfied |
user_data |
the data to pass to callback function |