aboutsummaryrefslogtreecommitdiff
path: root/src/fetch-file.vala
diff options
context:
space:
mode:
Diffstat (limited to 'src/fetch-file.vala')
-rw-r--r--src/fetch-file.vala86
1 files changed, 86 insertions, 0 deletions
diff --git a/src/fetch-file.vala b/src/fetch-file.vala
new file mode 100644
index 0000000..1811cc1
--- /dev/null
+++ b/src/fetch-file.vala
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2010 Canonical, Ltd.
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License
+ * version 3.0 as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3.0 for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Authors
+ * Gordon Allott <gord.allott@canonical.com>
+ * Conor Curran <conor.curran@canonical.com>
+ */
+
+public class FetchFile : Object
+{
+ /* public variables */
+ public string uri {get; construct;}
+ public string intended_property {get; construct;}
+
+ /* private variables */
+ private DataInputStream stream;
+ private File? file;
+ private ByteArray data;
+
+ /* public signals */
+ public signal void failed ();
+ public signal void completed (ByteArray data, string property);
+
+ public FetchFile (string uri, string prop)
+ {
+ Object (uri: uri, intended_property: prop);
+ }
+
+ construct
+ {
+ this.file = File.new_for_uri(this.uri);
+ this.data = new ByteArray ();
+ }
+
+ public async void fetch_data ()
+ {
+ try {
+ this.stream = new DataInputStream(this.file.read(null));
+ this.stream.set_byte_order (DataStreamByteOrder.LITTLE_ENDIAN);
+ } catch (GLib.Error e) {
+ this.failed ();
+ }
+ this.read_something_async ();
+ }
+
+ private async void read_something_async ()
+ {
+ ssize_t size = 1024;
+ uint8[] buffer = new uint8[size];
+
+ ssize_t bufsize = 1;
+ do {
+ try {
+ bufsize = yield this.stream.read_async (buffer, size, GLib.Priority.DEFAULT, null);
+ if (bufsize < 1) { break;}
+
+ if (bufsize != size)
+ {
+ uint8[] cpybuf = new uint8[bufsize];
+ Memory.copy (cpybuf, buffer, bufsize);
+ this.data.append (cpybuf);
+ }
+ else
+ {
+ this.data.append (buffer);
+ }
+ } catch (Error e) {
+ this.failed ();
+ }
+ } while (bufsize > 0);
+ this.completed (this.data, this.intended_property);
+ }
+}