1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#pragma once
#include <boost/bind.hpp>
#include "Swiften/LinkLocal/DNSSD/Avahi/AvahiQuery.h"
#include "Swiften/LinkLocal/DNSSD/DNSSDBrowseQuery.h"
#include "Swiften/EventLoop/MainEventLoop.h"
namespace Swift {
class AvahiQuerier;
class AvahiBrowseQuery : public DNSSDBrowseQuery, public AvahiQuery {
public:
AvahiBrowseQuery(boost::shared_ptr<AvahiQuerier> q) : AvahiQuery(q), browser(NULL) {
}
void startBrowsing() {
assert(!browser);
std::cout << "Start browsing" << std::endl;
avahi_threaded_poll_lock(querier->getThreadedPoll());
std::cout << "Creating browser" << std::endl;
browser = avahi_service_browser_new(querier->getClient(), AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_presence._tcp", NULL, (AvahiLookupFlags) 0, &handleServiceDiscoveredStatic, this);
if (!browser) {
std::cout << "Error" << std::endl;
MainEventLoop::postEvent(boost::bind(boost::ref(onError)), shared_from_this());
}
std::cout << "Unlocking" << std::endl;
avahi_threaded_poll_unlock(querier->getThreadedPoll());
std::cout << "Browse started" << std::endl;
}
void stopBrowsing() {
avahi_threaded_poll_lock(querier->getThreadedPoll());
avahi_service_browser_free(browser);
browser = NULL;
avahi_threaded_poll_unlock(querier->getThreadedPoll());
}
private:
static void handleServiceDiscoveredStatic(AvahiServiceBrowser *b, AvahiIfIndex interfaceIndex, AvahiProtocol protocol, AvahiBrowserEvent event, const char *name, const char *type, const char *domain, AvahiLookupResultFlags flags, void* context) {
static_cast<AvahiBrowseQuery*>(context)->handleServiceDiscovered(b, interfaceIndex, protocol, event, name, type, domain, flags);
}
void handleServiceDiscovered(AvahiServiceBrowser *, AvahiIfIndex interfaceIndex, AvahiProtocol, AvahiBrowserEvent event, const char *name, const char *type, const char *domain, AvahiLookupResultFlags) {
switch (event) {
case AVAHI_BROWSER_FAILURE:
std::cout << "Service browse error" << std::endl;
MainEventLoop::postEvent(boost::bind(boost::ref(onError)), shared_from_this());
break;
case AVAHI_BROWSER_NEW: {
DNSSDServiceID service(name, domain, type, interfaceIndex);
std::cout << "Service discovered " << name << " " << type << " " << domain << std::endl;
MainEventLoop::postEvent(boost::bind(boost::ref(onServiceAdded), service), shared_from_this());
break;
}
case AVAHI_BROWSER_REMOVE: {
std::cout << "Service went away " << name << " " << type << " " << domain << std::endl;
DNSSDServiceID service(name, domain, type, interfaceIndex);
MainEventLoop::postEvent(boost::bind(boost::ref(onServiceRemoved), service), shared_from_this());
break;
}
case AVAHI_BROWSER_ALL_FOR_NOW:
case AVAHI_BROWSER_CACHE_EXHAUSTED:
break;
}
}
private:
AvahiServiceBrowser* browser;
};
}
|
Swift