def stopResolving(self):
"""Stop advertising the service."""
# Remove the Reader Deallocate the serviceReference
self.reactor.removeReader(self.bonjourDesc)
if self.sdRef is not None:
bonjour.DNSServiceRefDeallocate(self.sdRef)
self.sdRef = None
def __BrowseCallback(self, sdRef, flags, interfaceIndex, errorCode,
serviceName, regtype, replyDomain, userdata):
if flags & bonjour.kDNSServiceFlagsAdd:
sdRef2 = bonjour.AllocateDNSServiceRef()
ret = bonjour.pyDNSServiceResolve(sdRef2, 0, 0, serviceName,
regtype, replyDomain,
self.__ResolveCallback,
serviceName)
bonjour.DNSServiceProcessResult(sdRef2)
bonjour.DNSServiceRefDeallocate(sdRef2)
elif flags == 0:
self.lock.acquire()
del self.serviceUrls[serviceName]
self.lock.release()
# Call callback (if registered) to signal delete
if self.browseCallback:
self.browseCallback(self.DELETE, serviceName)
def BrowseServices():
# Allocate a service discovery ref and browse for the specified service type
serviceRef = bonjour.AllocateDNSServiceRef()
ret = bonjour.pyDNSServiceQueryRecord(serviceRef,
0, # no flags
0, # all network interfaces
"_services._dns-sd._udp.local.", # meta-query record name
PTR_RECORD_TYPE,
INTERNET_CLASS_TYPE,
QueryCallback, # callback function ptr
None)
if ret != bonjour.kDNSServiceErr_NoError:
print "ret = %d; exiting" % ret
sys.exit(1)
# Get socket descriptor and loop
fd = bonjour.DNSServiceRefSockFD(serviceRef)
while 1:
ret = select.select([fd],[],[])
ret = bonjour.DNSServiceProcessResult(serviceRef)
# Deallocate the service discovery ref
bonjour.DNSServiceRefDeallocate(serviceRef)
hostname = socket.gethostname()
# Allocate a service discovery reference and register the specified service
serviceRef = bonjour.AllocateDNSServiceRef()
ret = bonjour.pyDNSServiceRegister(
serviceRef, # DNSServiceRef *sdRef,
0, # DNSServiceFlags flags, /* may be 0 */
0, # uint32_t interfaceIndex,/* may be 0 */
servicename, # const char *name, /* may be NULL */
regtype, # const char *regtype,
'local.', # const char *domain, /* may be NULL */
hostname, # const char *host, /* may be NULL */
port, # uint16_t port,
0, # uint16_t txtLen,
"", # const void *txtRecord, /* may be NULL */
RegisterCallback, # DNSServiceRegisterReply callBack, /* may be NULL */
userdata)
if ret != bonjour.kDNSServiceErr_NoError:
print "error %d returned; exiting" % ret
sys.exit(ret)
# Get the socket and loop
fd = bonjour.DNSServiceRefSockFD(serviceRef)
while 1:
ret = select.select([fd], [], [])
ret = bonjour.DNSServiceProcessResult(serviceRef)
# Deallocate the service discovery ref
bonjour.DNSServiceRefDeallocate(serviceRef)
def connectionLost(self, reason):
"""Called by the Twisted event loop when things are shutting down."""
log.msg("Stopping Bonjour Advertisement")
if self.sdRef is not None:
bonjour.DNSServiceRefDeallocate(self.sdRef)
self.sdRef = None
def __del__(self):
# Deallocate the service discovery ref
if self.serviceRef:
bonjour.DNSServiceRefDeallocate(self.serviceRef)
