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我想從網絡套接字中讀取,以使用gnome擴展中的信息。爲此我使用Gio socketclient。我可以連接並從輸入流中讀取synchrone。但是,我在閱讀asynchrone時失敗了。我已經在以下腳本中隔離了我的問題:Gnome Javascript:回調不適用於異步功能
#!/usr/bin/gjs
const Gio = imports.gi.Gio;
var doAsyncCallBack = function(gobject, async_res, user_data) {
print("ASYNC test: doCallBack");
let lineout, charlength, error;
[lineout, charlength, error] = gobject.read_upto_finish(async_res);
print("ASYNC test: " + lineout + " (" + charlength + ")");
};
let sc = new Gio.SocketClient();
let scc = sc.connect_to_host("kodi", 9090, null);
let dis = new Gio.DataInputStream({ base_stream: scc.get_input_stream() });
//sync
print("sync test: started");
let valuestr, valueint;
[valuestr, valueint] = dis.read_upto("}" , -1, null);
print("sync test: " + valuestr + " (" + valueint + ")");
//async
print("ASYNC test: started");
dis.read_upto_async("}" , -1, 0, null, doAsyncCallBack);
// keep in a loop.
print("(press [crtl-c] to end)");
while (0 == 0) {};
在我的示例中,「doAsyncCallBack」函數從不調用。 synchrone調用起作用,所以服務器正在給予propper響應。
的我發現這裏的信息的一部分,但(科迪)服務器不發送的新行:gjs How to read a socket stream in Gnome Shell Extension using g_data_input_stream_read_line_async