1 /*
2 * Copyright 2015, Axel Dörfler, axeld@pinc-software.de.
3 * Distributed under the terms of the MIT License.
4 */
5
6
7 #include <launch.h>
8
9 #include <TokenSpace.h>
10 #include <util/KMessage.h>
11
12
13 static port_id sLaunchDaemonPort = -1;
14
15
16 port_id
get_launch_daemon_port()17 BPrivate::get_launch_daemon_port()
18 {
19 if (sLaunchDaemonPort < 0) {
20 sLaunchDaemonPort = find_port(B_LAUNCH_DAEMON_PORT_NAME);
21
22 port_info info;
23 if (get_port_info(sLaunchDaemonPort, &info) == B_OK
24 && info.team == find_thread(NULL)) {
25 // Make sure that the launch_daemon doesn't wait on itself
26 sLaunchDaemonPort = -1;
27 return -1;
28 }
29 }
30
31 return sLaunchDaemonPort;
32 }
33
34
35 status_t
send_request_to_launch_daemon(KMessage & request,KMessage & reply)36 BPrivate::send_request_to_launch_daemon(KMessage& request, KMessage& reply)
37 {
38 status_t status = request.SendTo(get_launch_daemon_port(),
39 B_PREFERRED_TOKEN, &reply);
40 if (status != B_OK)
41 return status;
42
43 return (status_t)reply.What();
44 }
45
46
47 status_t
get_launch_data(const char * signature,KMessage & data)48 BPrivate::get_launch_data(const char* signature, KMessage& data)
49 {
50 BPrivate::KMessage request(B_GET_LAUNCH_DATA);
51 request.AddString("name", signature);
52
53 return BPrivate::send_request_to_launch_daemon(request, data);
54 }
55