diff options
Diffstat (limited to 'linux/zeroconf_avahi.c')
| -rw-r--r-- | linux/zeroconf_avahi.c | 1056 |
1 files changed, 1056 insertions, 0 deletions
diff --git a/linux/zeroconf_avahi.c b/linux/zeroconf_avahi.c new file mode 100644 index 0000000..98187bf --- /dev/null +++ b/linux/zeroconf_avahi.c @@ -0,0 +1,1056 @@ +#include "stdafx.h"
+#include "csocket.h"
+#include "csocketevents.h"
+#include "cphidgetlist.h"
+#include "cphidgetmanager.h"
+#include "cphidgetdictionary.h"
+#include "cphidgetsbc.h"
+#include "zeroconf.h"
+
+#include "avahi-client/client.h"
+#include "avahi-client/lookup.h"
+
+#include "avahi-common/thread-watch.h"
+#include "avahi-common/malloc.h"
+#include "avahi-common/error.h"
+#include "avahi-common/domain.h"
+
+static int UninitializeZeroconf1(int lock);
+
+struct AvahiThreadedPoll {
+ void *simple_poll;
+ pthread_t thread_id;
+ pthread_mutex_t mutex;
+ int thread_running;
+ int retval;
+} ;
+
+#ifdef ZEROCONF_RUNTIME_LINKING
+typedef AvahiClient * (* avahi_client_new_type) (
+ const AvahiPoll *poll_api /**< The abstract event loop API to use */,
+ AvahiClientFlags flags /**< Some flags to modify the behaviour of the client library */,
+ AvahiClientCallback callback /**< A callback that is called whenever the state of the client changes. This may be NULL */,
+ void *userdata /**< Some arbitrary user data pointer that will be passed to the callback function */,
+ int *error /**< If creation of the client fails, this integer will contain the error cause. May be NULL if you aren't interested in the reason why avahi_client_new() failed. */);
+typedef void (* avahi_client_free_type)(AvahiClient *client);
+typedef const char * (* avahi_client_get_host_name_type) (AvahiClient *);
+typedef AvahiServiceBrowser * (* avahi_service_browser_new_type) (
+ AvahiClient *client,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ const char *type,
+ const char *domain,
+ AvahiLookupFlags flags,
+ AvahiServiceBrowserCallback callback,
+ void *userdata);
+typedef AvahiServiceResolver * (* avahi_service_resolver_new_type)(
+ AvahiClient *client,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AvahiProtocol aprotocol,
+ AvahiLookupFlags flags,
+ AvahiServiceResolverCallback callback,
+ void *userdata);
+typedef int (* avahi_service_resolver_free_type)(AvahiServiceResolver *r);
+typedef AvahiRecordBrowser * (* avahi_record_browser_new_type)(
+ AvahiClient *client,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ const char *name,
+ uint16_t clazz,
+ uint16_t type,
+ AvahiLookupFlags flags,
+ AvahiRecordBrowserCallback callback,
+ void *userdata);
+typedef int (* avahi_record_browser_free_type)(AvahiRecordBrowser *);
+typedef int (* avahi_service_name_join_type)(char *p, size_t size, const char *name, const char *type, const char *domain);
+typedef const char *(* avahi_strerror_type)(int error);
+typedef int (* avahi_client_errno_type) (AvahiClient*);
+typedef AvahiThreadedPoll *(* avahi_threaded_poll_new_type)(void);
+typedef void (* avahi_threaded_poll_free_type)(AvahiThreadedPoll *p);
+typedef const AvahiPoll* (* avahi_threaded_poll_get_type)(AvahiThreadedPoll *p);
+typedef int (* avahi_threaded_poll_start_type)(AvahiThreadedPoll *p);
+typedef int (* avahi_threaded_poll_stop_type)(AvahiThreadedPoll *p);
+typedef void (* avahi_threaded_poll_quit_type)(AvahiThreadedPoll *p);
+typedef void (* avahi_threaded_poll_lock_type)(AvahiThreadedPoll *p);
+typedef void (* avahi_threaded_poll_unlock_type)(AvahiThreadedPoll *p);
+typedef const char *(* avahi_client_get_version_string_type)(AvahiClient *c);
+
+avahi_service_browser_new_type avahi_service_browser_new_ptr = NULL;
+avahi_service_resolver_new_type avahi_service_resolver_new_ptr = NULL;
+avahi_service_resolver_free_type avahi_service_resolver_free_ptr = NULL;
+avahi_record_browser_new_type avahi_record_browser_new_ptr = NULL;
+avahi_record_browser_free_type avahi_record_browser_free_ptr = NULL;
+avahi_service_name_join_type avahi_service_name_join_ptr = NULL;
+avahi_client_new_type avahi_client_new_ptr = NULL;
+avahi_client_free_type avahi_client_free_ptr = NULL;
+avahi_strerror_type avahi_strerror_ptr = NULL;
+avahi_client_errno_type avahi_client_errno_ptr = NULL;
+avahi_threaded_poll_new_type avahi_threaded_poll_new_ptr = NULL;
+avahi_threaded_poll_free_type avahi_threaded_poll_free_ptr = NULL;
+avahi_threaded_poll_get_type avahi_threaded_poll_get_ptr = NULL;
+avahi_threaded_poll_start_type avahi_threaded_poll_start_ptr = NULL;
+avahi_threaded_poll_stop_type avahi_threaded_poll_stop_ptr = NULL;
+avahi_threaded_poll_quit_type avahi_threaded_poll_quit_ptr = NULL;
+avahi_threaded_poll_lock_type avahi_threaded_poll_lock_ptr = NULL;
+avahi_threaded_poll_unlock_type avahi_threaded_poll_unlock_ptr = NULL;
+avahi_client_get_version_string_type avahi_client_get_version_string_ptr = NULL;
+#else
+#define avahi_service_browser_new_ptr avahi_service_browser_new
+#define avahi_service_resolver_new_ptr avahi_service_resolver_new
+#define avahi_service_resolver_free_ptr avahi_service_resolver_free
+#define avahi_record_browser_new_ptr avahi_record_browser_new
+#define avahi_record_browser_free_ptr avahi_record_browser_free
+#define avahi_service_name_join_ptr avahi_service_name_join
+#define avahi_client_new_ptr avahi_client_new
+#define avahi_client_free_ptr avahi_client_free
+#define avahi_strerror_ptr avahi_strerror
+#define avahi_client_errno_ptr avahi_client_errno
+#define avahi_threaded_poll_new_ptr avahi_threaded_poll_new
+#define avahi_threaded_poll_free_ptr avahi_threaded_poll_free
+#define avahi_threaded_poll_get_ptr avahi_threaded_poll_get
+#define avahi_threaded_poll_start_ptr avahi_threaded_poll_start
+#define avahi_threaded_poll_stop_ptr avahi_threaded_poll_stop
+#define avahi_threaded_poll_quit_ptr avahi_threaded_poll_quit
+#define avahi_threaded_poll_lock_ptr avahi_threaded_poll_lock
+#define avahi_threaded_poll_unlock_ptr avahi_threaded_poll_unlock
+#define avahi_client_get_version_string_ptr avahi_client_get_version_string
+#endif
+
+/*
+ * TXT record version - this should be 1 for a long time
+ * - only need to change if we really change the TXT record format
+ */
+const char *dnssd_txt_ver = "1";
+
+int Dns_sdInitialized = FALSE;
+
+static AvahiThreadedPoll *threaded_poll = NULL;
+static AvahiClient *client = NULL;
+
+static AvahiServiceBrowser *zeroconf_browse_sbc_ref = NULL;
+static AvahiServiceBrowser *zeroconf_browse_ws_ref = NULL;
+static AvahiServiceBrowser *zeroconf_browse_phidget_ref = NULL;
+
+//pthread_t dns_thread_ws, dns_thread_phid;
+
+void *avahiLibHandle = NULL;
+
+static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) {
+ assert(c);
+
+ /* Called whenever the client or server state changes */
+
+ switch (state) {
+ case AVAHI_CLIENT_S_RUNNING:
+
+ /* The server has startup successfully and registered its host
+ * name on the network */
+ Dns_sdInitialized = TRUE;
+ break;
+
+ case AVAHI_CLIENT_FAILURE:
+
+ LOG(PHIDGET_LOG_ERROR, "Client failure: %s", avahi_strerror_ptr(avahi_client_errno_ptr(c)));
+ //avahi_threaded_poll_quit_ptr(threaded_poll);
+
+ break;
+
+ case AVAHI_CLIENT_S_COLLISION:
+
+ /* Let's drop our registered services. When the server is back
+ * in AVAHI_SERVER_RUNNING state we will register them
+ * again with the new host name. */
+
+ case AVAHI_CLIENT_S_REGISTERING:
+
+ /* The server records are now being established. This
+ * might be caused by a host name change. We need to wait
+ * for our own records to register until the host name is
+ * properly esatblished. */
+
+ //if (group)
+ // avahi_entry_group_reset_ptr(group);
+
+ break;
+
+ case AVAHI_CLIENT_CONNECTING:
+ break;
+ }
+}
+
+static uint8_t *InternalTXTRecordSearch
+ (
+ uint16_t txtLen,
+ const void *txtRecord,
+ const char *key,
+ unsigned long *keylen
+ )
+{
+ uint8_t *p = (uint8_t*)txtRecord;
+ uint8_t *e = p + txtLen;
+ *keylen = (unsigned long) strlen(key);
+ while (p<e)
+ {
+ uint8_t *x = p;
+ p += 1 + p[0];
+ if (p <= e && *keylen <= x[0] && !strncmp(key, (char*)x+1, *keylen))
+ if (*keylen == x[0] || x[1+*keylen] == '=') return(x);
+ }
+ return(NULL);
+}
+
+const void * TXTRecordGetValuePtr
+ (
+ uint16_t txtLen,
+ const void *txtRecord,
+ const char *key,
+ uint8_t *valueLen
+ )
+{
+ unsigned long keylen;
+ uint8_t *item = InternalTXTRecordSearch(txtLen, txtRecord, key, &keylen);
+ if (!item || item[0] <= keylen) return(NULL); // If key not found, or found with no value, return NULL
+ *valueLen = (uint8_t)(item[0] - (keylen + 1));
+ return (item + 1 + keylen + 1);
+}
+
+void PhidFromTXT(CPhidgetHandle phid, uint16_t txtLen, const char *txtRecord)
+{
+ int i = 0;
+ short txtver;
+
+ uint8_t valLen = 0;
+ const char *valPtr = NULL;
+
+ //txt version
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "txtvers", &valLen))) return;
+ txtver = (short)strtol(valPtr, NULL, 10);
+
+ //Serial Number
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "serial", &valLen))) return;
+ phid->serialNumber = strtol(valPtr, NULL, 10);
+ phid->specificDevice = PTRUE;
+
+ //version
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "version", &valLen))) return;
+ phid->deviceVersion = strtol(valPtr, NULL, 10);
+
+ //label
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "label", &valLen))) return;
+ if(valLen > MAX_LABEL_STORAGE-1) valLen = MAX_LABEL_STORAGE-1;
+ memcpy(phid->label, valPtr, valLen);
+ phid->label[valLen] = '\0';
+
+ //server_id
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "server_id", &valLen))) return;
+ free(phid->networkInfo->zeroconf_server_id);
+ if(!(phid->networkInfo->zeroconf_server_id = malloc(valLen+1))) return;
+ ZEROMEM(phid->networkInfo->zeroconf_server_id, valLen+1);
+ memcpy(phid->networkInfo->zeroconf_server_id, valPtr, valLen);
+
+ // things added in version 2 of the txt
+ if(txtver >= 2)
+ {
+ //Device ID
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "id", &valLen))) return;
+ phid->deviceIDSpec = strtol(valPtr, NULL, 10);
+
+ for(i = 1;i<PHIDGET_DEVICE_COUNT;i++)
+ if(phid->deviceIDSpec == Phid_Device_Def[i].pdd_sdid) break;
+ phid->deviceDef = &Phid_Device_Def[i];
+ phid->attr = Phid_Device_Def[i].pdd_attr;
+
+ //Device Class
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "class", &valLen))) return;
+ phid->deviceID = strtol(valPtr, NULL, 10);
+ phid->deviceType = Phid_DeviceName[phid->deviceID];
+ }
+ //Old version uses string searching, but some devices have the same name with different IDs
+ else
+ {
+ char *name = NULL;
+ char *type = NULL;
+
+ //name
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "name", &valLen))) return;
+ if(!(name = malloc(valLen+1))) return;
+ ZEROMEM(name, valLen+1);
+ memcpy(name, valPtr, valLen);
+ for(i = 0;i<PHIDGET_DEVICE_COUNT;i++)
+ {
+ if(!strcmp(name, Phid_Device_Def[i].pdd_name))
+ {
+ phid->deviceIDSpec = Phid_Device_Def[i].pdd_sdid;
+ phid->deviceDef = &Phid_Device_Def[i];
+ phid->attr = Phid_Device_Def[i].pdd_attr;
+ break;
+ }
+ }
+ free(name);
+
+ //type
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "type", &valLen))) return;
+ if(!(type = malloc(valLen+1))) return;
+ ZEROMEM(type, valLen+1);
+ memcpy(type, valPtr, valLen);
+ phid->deviceID = phidget_type_to_id(type);
+ phid->deviceType = Phid_DeviceName[phid->deviceID];
+ free(type);
+ }
+
+ phid->networkInfo->mdns = PTRUE;
+
+}
+
+void SBCFromTXT(CPhidgetSBCHandle sbc, uint16_t txtLen, const char *txtRecord)
+{
+ char *hversion = NULL, *txtver = NULL;
+
+ uint8_t valLen = 0;
+ const char *valPtr = NULL;
+
+ //txt version
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "txtvers", &valLen))) return;
+ if(!(txtver = malloc(valLen+1))) return;
+ ZEROMEM(txtver, valLen+1);
+ memcpy(txtver, valPtr, valLen);
+ sbc->txtver = (short)strtol(txtver, NULL, 10);
+ free(txtver);
+
+ //Firmware version
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "fversion", &valLen))) return;
+ if(valLen > 12) valLen = 12;
+ memcpy(sbc->fversion, valPtr, valLen);
+ sbc->fversion[valLen] = '\0';
+
+ //Hardware version
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "hversion", &valLen))) return;
+ if(!(hversion = malloc(valLen+1))) return;
+ ZEROMEM(hversion, valLen+1);
+ memcpy(hversion, valPtr, valLen);
+ sbc->hversion = (short)strtol(hversion, NULL, 10);
+ free(hversion);
+
+ // things added in version 2 of the txt
+ if(sbc->txtver >= 2)
+ {
+ //Hostname
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "hostname", &valLen))) return;
+ if(valLen > 128) valLen = 128;
+ memcpy(sbc->hostname, valPtr, valLen);
+ sbc->hostname[valLen] = '\0';
+ }
+
+ // things added in version 3 of the txt
+ if(sbc->txtver >= 3)
+ {
+ //Device Name
+ if(!(valPtr = TXTRecordGetValuePtr(txtLen, txtRecord, "name", &valLen))) return;
+ if(valLen > 128) valLen = 128;
+ memcpy(sbc->deviceName, valPtr, valLen);
+ sbc->deviceName[valLen] = '\0';
+ }
+ else
+ {
+ sprintf(sbc->deviceName, "PhidgetSBC");
+ }
+}
+
+void DNSServiceResolve_CallBack(
+ AvahiServiceResolver *r,
+ AVAHI_GCC_UNUSED AvahiIfIndex interface,
+ AVAHI_GCC_UNUSED AvahiProtocol protocol,
+ AvahiResolverEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host_name,
+ const AvahiAddress *address,
+ uint16_t port,
+ AvahiStringList *txt,
+ AvahiLookupResultFlags flags,
+ AVAHI_GCC_UNUSED void* userdata)
+{
+
+ CPhidgetRemoteHandle networkInfo = (CPhidgetRemoteHandle)userdata;
+ switch (event) {
+ case AVAHI_RESOLVER_FAILURE:
+ LOG(PHIDGET_LOG_ERROR, "(Resolver) Failed to resolve service '%s' of type '%s' in domain '%s': %s", name, type, domain, avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ networkInfo->zeroconf_host = strdup("err");
+ break;
+ case AVAHI_RESOLVER_FOUND:
+ {
+ LOG(PHIDGET_LOG_INFO, "DNSServiceResolve_CallBack: %s",name);
+ networkInfo->zeroconf_host = strdup(host_name);
+ networkInfo->zeroconf_port = malloc(10);
+ snprintf(networkInfo->zeroconf_port, 9, "%d", port);
+ }
+ }
+
+ avahi_service_resolver_free_ptr(r);
+}
+
+void DNSServiceQueryRecord_Phidget_CallBack
+ (
+ AvahiRecordBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ uint16_t clazz,
+ uint16_t type,
+ const void *rdata,
+ size_t size,
+ AvahiLookupResultFlags flags,
+ void *userdata
+ )
+{
+ CPhidgetHandle phid = (CPhidgetHandle)userdata;
+ CPhidgetManagerList *trav;
+
+ switch(event)
+ {
+ case AVAHI_BROWSER_NEW:
+ PhidFromTXT(phid, size, rdata);
+ LOG(PHIDGET_LOG_INFO, "DNSServiceQueryRecord_Phidget_CallBack: %s",name);
+ CThread_mutex_lock(&zeroconfPhidgetsLock);
+ CThread_mutex_lock(&activeRemoteManagersLock);
+
+ CPhidget_setStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, &phid->lock);
+ CPhidget_setStatusFlag(&phid->status, PHIDGET_REMOTE_FLAG, &phid->lock);
+ CPhidget_setStatusFlag(&phid->status, PHIDGET_SERVER_CONNECTED_FLAG, &phid->lock);
+
+ //now add it
+ CList_addToList((CListHandle *)&zeroconfPhidgets, phid, CPhidget_areExtraEqual);
+ //managers
+ for (trav=activeRemoteManagers; trav; trav = trav->next)
+ {
+ if(trav->phidm->networkInfo->requested_address==NULL
+ && (trav->phidm->networkInfo->requested_serverID == NULL || !strcmp(trav->phidm->networkInfo->requested_serverID,phid->networkInfo->zeroconf_server_id)))
+ {
+ CList_addToList((CListHandle *)&trav->phidm->AttachedPhidgets, phid, CPhidget_areExtraEqual);
+
+ if (trav->phidm->fptrAttachChange && trav->phidm->state == PHIDGETMANAGER_ACTIVE)
+ trav->phidm->fptrAttachChange((CPhidgetHandle)phid, trav->phidm->fptrAttachChangeptr);
+ }
+ }
+ CThread_mutex_unlock(&activeRemoteManagersLock);
+ CThread_mutex_unlock(&zeroconfPhidgetsLock);
+ break;
+ case AVAHI_BROWSER_FAILURE:
+ LOG(PHIDGET_LOG_ERROR, "DNSServiceQueryRecord_Phidget_CallBack returned error: %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ break;
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ avahi_record_browser_free_ptr(b);
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ LOG(PHIDGET_LOG_INFO, "DNSServiceQueryRecord_Phidget_CallBack %s", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ break;
+ case AVAHI_BROWSER_REMOVE:
+ break;
+ }
+}
+
+void DNSServiceQueryRecord_SBC_CallBack
+(
+ AvahiRecordBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ uint16_t clazz,
+ uint16_t type,
+ const void *rdata,
+ size_t size,
+ AvahiLookupResultFlags flags,
+ void *userdata
+ )
+{
+ CPhidgetSBCHandle sbc = (CPhidgetSBCHandle)userdata, found_sbc;
+ CPhidgetSBCManagerList *trav;
+
+ switch(event)
+ {
+ case AVAHI_BROWSER_NEW:
+ SBCFromTXT(sbc, size, rdata);
+ LOG(PHIDGET_LOG_INFO, "DNSServiceQueryRecord_SBC_CallBack: %s",name);
+ CThread_mutex_lock(&zeroconfSBCsLock);
+ CThread_mutex_lock(&activeSBCManagersLock);
+
+ //Check if it's in the list and if it's different, remove it to make way for the new one
+ // (Sometimes, we don't get a proper detach notification)
+ if(CList_findInList((CListHandle)zeroconfSBCs, sbc, CPhidgetSBC_areEqual, (void **)&found_sbc) == EPHIDGET_OK)
+ {
+ if(CPhidgetSBC_areExtraEqual(found_sbc, sbc) != PTRUE) //A version number has changed
+ {
+ //Remove from list - don't free until after detach event
+ CList_removeFromList((CListHandle *)&zeroconfSBCs, found_sbc, CPhidgetSBC_areEqual, PFALSE, NULL);
+
+ for (trav=activeSBCManagers; trav; trav = trav->next)
+ {
+ if (trav->sbcm->fptrDetachChange && trav->sbcm->state == PHIDGETMANAGER_ACTIVE)
+ trav->sbcm->fptrDetachChange((CPhidgetSBCHandle)found_sbc, trav->sbcm->fptrDetachChangeptr);
+ }
+
+ CPhidgetSBC_free(found_sbc);
+
+ //now we fall through and add back to new one
+ }
+ else //Nothing has changed, we didn't remove, don't add
+ {
+ CPhidgetSBC_free(sbc);
+ goto dontadd;
+ }
+ }
+
+ //now add it
+ CList_addToList((CListHandle *)&zeroconfSBCs, sbc, CPhidgetSBC_areEqual);
+
+ //send out events
+ for (trav=activeSBCManagers; trav; trav = trav->next)
+ {
+ if (trav->sbcm->fptrAttachChange && trav->sbcm->state == PHIDGETMANAGER_ACTIVE)
+ trav->sbcm->fptrAttachChange((CPhidgetSBCHandle)sbc, trav->sbcm->fptrAttachChangeptr);
+
+ }
+ dontadd:
+
+ CThread_mutex_unlock(&activeSBCManagersLock);
+ CThread_mutex_unlock(&zeroconfSBCsLock);
+ break;
+ case AVAHI_BROWSER_FAILURE:
+ LOG(PHIDGET_LOG_ERROR, "DNSServiceQueryRecord_SBC_CallBack returned error: %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ break;
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ avahi_record_browser_free_ptr(b);
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ LOG(PHIDGET_LOG_INFO, "DNSServiceQueryRecord_SBC_CallBack %s", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ break;
+ case AVAHI_BROWSER_REMOVE:
+ break;
+ }
+}
+
+void DNSServiceBrowse_Phidget_CallBack(
+ AvahiServiceBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
+ void* userdata)
+{
+
+ CPhidgetHandle phid;
+ CPhidgetManagerList *trav;
+
+ int ret;
+
+ switch (event) {
+
+ case AVAHI_BROWSER_FAILURE:
+
+ LOG(PHIDGET_LOG_WARNING, "(Browser) %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ avahi_threaded_poll_quit_ptr(threaded_poll);
+ return;
+
+ case AVAHI_BROWSER_NEW:
+ {
+ char fullname[AVAHI_DOMAIN_NAME_MAX];
+
+ if((CPhidget_create(&phid))) return;
+ if((CPhidgetRemote_create(&phid->networkInfo))) return;
+
+ phid->networkInfo->zeroconf_name = strdup(name);
+ phid->networkInfo->zeroconf_type = strdup(type);
+ phid->networkInfo->zeroconf_domain = strdup(domain);
+
+ LOG(PHIDGET_LOG_INFO, "(Browser) NEW: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+ if((ret = avahi_service_name_join_ptr(fullname, AVAHI_DOMAIN_NAME_MAX, name, type, domain)) != AVAHI_OK)
+ LOG(PHIDGET_LOG_ERROR, "Failed avahi_service_name_join_ptr '%s': %s", name, avahi_strerror_ptr(ret));
+
+ if(!(avahi_record_browser_new_ptr(client, interface, protocol, fullname, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT, 0, DNSServiceQueryRecord_Phidget_CallBack, phid)))
+ LOG(PHIDGET_LOG_ERROR, "Failed to resolve service '%s': %s", name, avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ //gets added to list in callback
+ }
+ break;
+
+ case AVAHI_BROWSER_REMOVE:
+ {
+ if((CPhidget_create(&phid))) return;
+ if((CPhidgetRemote_create(&phid->networkInfo))) return;
+
+ phid->networkInfo->zeroconf_name = strdup(name);
+ phid->networkInfo->zeroconf_type = strdup(type);
+ phid->networkInfo->zeroconf_domain = strdup(domain);
+
+ LOG(PHIDGET_LOG_INFO, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+ //have to fill in phid manually from just the name
+ int i;
+ CPhidgetHandle found_phid;
+ char *name_copy = strdup(name);
+ for(i=0;i<strlen(name_copy);i++)
+ if(name_copy[i] == '(') break;
+ if(i<=1) return;
+ name_copy[strlen(name_copy)-1]='\0';
+ name_copy[i-1] = '\0';
+ phid->serialNumber = strtol(name_copy+i+1, NULL, 10);
+ phid->specificDevice = PTRUE;
+ for(i = 0;i<PHIDGET_DEVICE_COUNT;i++)
+ if(!strcmp(name_copy, Phid_Device_Def[i].pdd_name)) break;
+ phid->deviceIDSpec = 0;
+ phid->deviceDef = &Phid_Device_Def[i];
+ phid->attr = Phid_Device_Def[i].pdd_attr;
+ phid->deviceID = Phid_Device_Def[i].pdd_did;
+ phid->deviceType = Phid_DeviceName[phid->deviceID];
+ phid->networkInfo->mdns = PTRUE;
+
+ CThread_mutex_lock(&zeroconfPhidgetsLock);
+ CThread_mutex_lock(&activeRemoteManagersLock);
+
+ CPhidget_clearStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, &phid->lock);
+ CPhidget_setStatusFlag(&phid->status, PHIDGET_DETACHING_FLAG, &phid->lock);
+
+ if(!CList_findInList((CListHandle)zeroconfPhidgets, phid, CPhidget_areEqual, (void **)&found_phid))
+ {
+ CPhidget_clearStatusFlag(&found_phid->status, PHIDGET_ATTACHED_FLAG, &found_phid->lock);
+ CPhidget_setStatusFlag(&found_phid->status, PHIDGET_DETACHING_FLAG, &found_phid->lock);
+ CPhidget_setStatusFlag(&found_phid->status, PHIDGET_REMOTE_FLAG, &found_phid->lock);
+ CPhidget_clearStatusFlag(&found_phid->status, PHIDGET_SERVER_CONNECTED_FLAG, &found_phid->lock);
+
+ CList_removeFromList((CListHandle *)&zeroconfPhidgets, found_phid, CPhidget_areExtraEqual, FALSE, NULL);
+ //managers
+ for (trav=activeRemoteManagers; trav; trav = trav->next)
+ {
+ if(trav->phidm->networkInfo->requested_address==NULL
+ && (trav->phidm->networkInfo->requested_serverID == NULL || !strcmp(trav->phidm->networkInfo->requested_serverID,found_phid->networkInfo->zeroconf_server_id)))
+ {
+ CList_removeFromList((CListHandle *)&trav->phidm->AttachedPhidgets, found_phid, CPhidget_areExtraEqual, PFALSE, NULL);
+
+ if (trav->phidm->fptrDetachChange && trav->phidm->state == PHIDGETMANAGER_ACTIVE)
+ trav->phidm->fptrDetachChange((CPhidgetHandle)found_phid, trav->phidm->fptrDetachChangeptr);
+ }
+ }
+ CPhidget_clearStatusFlag(&found_phid->status, PHIDGET_DETACHING_FLAG, &found_phid->lock);
+ CPhidgetRemote_free(found_phid->networkInfo);
+ CPhidget_free(found_phid);
+ }
+ CPhidgetRemote_free(phid->networkInfo);
+ CPhidget_free(phid);
+
+ CThread_mutex_unlock(&activeRemoteManagersLock);
+ CThread_mutex_unlock(&zeroconfPhidgetsLock);
+ free(name_copy);
+ }
+ break;
+
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ LOG(PHIDGET_LOG_INFO, "(Browser) %s", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ break;
+ }
+}
+
+void DNSServiceBrowse_SBC_CallBack(
+ AvahiServiceBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
+ void* userdata)
+{
+
+ CPhidgetSBCHandle sbc, found_sbc;
+ CPhidgetSBCManagerList *trav;
+ int ret;
+
+ switch (event) {
+
+ case AVAHI_BROWSER_FAILURE:
+
+ LOG(PHIDGET_LOG_WARNING, "(Browser) %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ avahi_threaded_poll_quit_ptr(threaded_poll);
+ return;
+
+ case AVAHI_BROWSER_NEW:
+ {
+ char fullname[AVAHI_DOMAIN_NAME_MAX];
+
+ if((CPhidgetSBC_create(&sbc))) return;
+ if((CPhidgetRemote_create(&sbc->networkInfo))) return;
+
+ sbc->networkInfo->zeroconf_name = strdup(name);
+ sbc->networkInfo->zeroconf_type = strdup(type);
+ sbc->networkInfo->zeroconf_domain = strdup(domain);
+ sbc->networkInfo->mdns = PTRUE;
+
+ strncpy(sbc->mac, name+12, 18); //name == 'PhidgetSBC (??:??:??:??:??:??)'
+ sbc->mac[17] = '\0';
+
+ LOG(PHIDGET_LOG_INFO, "(Browser) NEW: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+ if((ret = avahi_service_name_join_ptr(fullname, AVAHI_DOMAIN_NAME_MAX, name, type, domain)) != AVAHI_OK)
+ LOG(PHIDGET_LOG_ERROR, "Failed avahi_service_name_join_ptr '%s': %s", name, avahi_strerror_ptr(ret));
+
+ if(!(avahi_record_browser_new_ptr(client, interface, protocol, fullname, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT, 0, DNSServiceQueryRecord_SBC_CallBack, sbc)))
+ LOG(PHIDGET_LOG_ERROR, "Failed to resolve service '%s': %s", name, avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ //gets added to list in callback
+ }
+ break;
+
+ case AVAHI_BROWSER_REMOVE:
+ {
+ if((CPhidgetSBC_create(&sbc))) return;
+ if((CPhidgetRemote_create(&sbc->networkInfo))) return;
+
+ sbc->networkInfo->zeroconf_name = strdup(name);
+ sbc->networkInfo->zeroconf_type = strdup(type);
+ sbc->networkInfo->zeroconf_domain = strdup(domain);
+ sbc->networkInfo->mdns = PTRUE;
+
+ strncpy(sbc->mac, name+12, 18); //name == 'PhidgetSBC (??:??:??:??:??:??)'
+ sbc->mac[17] = '\0';
+
+ LOG(PHIDGET_LOG_INFO, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+
+ CThread_mutex_lock(&zeroconfSBCsLock);
+ CThread_mutex_lock(&activeSBCManagersLock);
+
+ if(CList_findInList((CListHandle)zeroconfSBCs, sbc, CPhidgetSBC_areEqual, (void **)&found_sbc) == EPHIDGET_OK)
+ {
+ CList_removeFromList((CListHandle *)&zeroconfSBCs, found_sbc, CPhidgetSBC_areEqual, PFALSE, NULL);
+ //managers
+ for (trav=activeSBCManagers; trav; trav = trav->next)
+ {
+ if (trav->sbcm->fptrDetachChange && trav->sbcm->state == PHIDGETMANAGER_ACTIVE)
+ trav->sbcm->fptrDetachChange((CPhidgetSBCHandle)found_sbc, trav->sbcm->fptrDetachChangeptr);
+ }
+ CPhidgetSBC_free(found_sbc);
+ }
+
+ CThread_mutex_unlock(&activeSBCManagersLock);
+ CThread_mutex_unlock(&zeroconfSBCsLock);
+
+ CPhidgetSBC_free(sbc);
+ }
+ break;
+
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ LOG(PHIDGET_LOG_INFO, "(Browser) %s", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ break;
+ }
+}
+
+void DNSServiceBrowse_ws_CallBack(
+ AvahiServiceBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
+ void* userdata)
+{
+
+ switch (event) {
+
+ case AVAHI_BROWSER_FAILURE:
+
+ LOG(PHIDGET_LOG_ERROR, "(Browser) %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ //avahi_threaded_poll_quit_ptr(threaded_poll);
+ return;
+
+ case AVAHI_BROWSER_NEW:
+ {
+ CPhidgetRemoteHandle networkInfo;
+ if((CPhidgetRemote_create(&networkInfo))) return;
+
+ networkInfo->zeroconf_name = strdup(name);
+ networkInfo->zeroconf_server_id = strdup(name);
+ networkInfo->zeroconf_type = strdup(type);
+ networkInfo->zeroconf_domain = strdup(domain);
+
+ LOG(PHIDGET_LOG_INFO, "(Browser) NEW: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+ CThread_mutex_lock(&zeroconfServersLock);
+ CList_addToList((CListHandle *)&zeroconfServers, networkInfo, CPhidgetRemote_areEqual);
+ CThread_mutex_unlock(&zeroconfServersLock);
+ }
+ break;
+
+ case AVAHI_BROWSER_REMOVE:
+ {
+ CPhidgetRemoteHandle networkInfo;
+ if((CPhidgetRemote_create(&networkInfo))) return;
+
+ networkInfo->zeroconf_name = strdup(name);
+ networkInfo->zeroconf_server_id = strdup(name);
+ networkInfo->zeroconf_type = strdup(type);
+ networkInfo->zeroconf_domain = strdup(domain);
+ LOG(PHIDGET_LOG_INFO, "(Browser) REMOVE: service '%s' of type '%s' in domain '%s'", name, type, domain);
+
+ CThread_mutex_lock(&zeroconfServersLock);
+ CList_removeFromList((CListHandle *)&zeroconfServers, networkInfo, CPhidgetRemote_areEqual, TRUE, CPhidgetRemote_free);
+ CThread_mutex_unlock(&zeroconfServersLock);
+ }
+ break;
+
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ LOG(PHIDGET_LOG_INFO, "(Browser) %s", event == AVAHI_BROWSER_CACHE_EXHAUSTED ? "CACHE_EXHAUSTED" : "ALL_FOR_NOW");
+ break;
+ }
+}
+
+//Does nothing in Avahi
+int cancelPendingZeroconfLookups(CPhidgetRemoteHandle networkInfo)
+{
+ return EPHIDGET_OK;
+}
+
+int getZeroconfHostPort(CPhidgetRemoteHandle networkInfo)
+{
+ int timeout = 200; //2000ms
+
+ if(networkInfo->zeroconf_host) free(networkInfo->zeroconf_host);
+ networkInfo->zeroconf_host = NULL;
+ if(networkInfo->zeroconf_port) free(networkInfo->zeroconf_port);
+ networkInfo->zeroconf_port = NULL;
+
+ //lock the thread before accessing the client - nope, it messes up if this is from the same thread (via attach/detach)
+ //avahi_threaded_poll_lock_ptr(threaded_poll);
+ if (!(avahi_service_resolver_new_ptr(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC,
+ networkInfo->zeroconf_name, //name
+ networkInfo->zeroconf_type, // service type
+ networkInfo->zeroconf_domain, //domain
+ AVAHI_PROTO_UNSPEC, 0, DNSServiceResolve_CallBack, networkInfo)))
+ {
+ LOG(PHIDGET_LOG_ERROR, "Failed to resolve service '%s': %s", networkInfo->zeroconf_name, avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ //avahi_threaded_poll_unlock_ptr(threaded_poll);
+ return EPHIDGET_UNEXPECTED;
+ }
+ //avahi_threaded_poll_unlock_ptr(threaded_poll);
+
+ while(!networkInfo->zeroconf_host)
+ {
+ usleep(10000);
+ timeout--;
+ if(!timeout)
+ {
+ LOG(PHIDGET_LOG_ERROR, "getZeroconfHostPort didn't work (timeout)");
+ return EPHIDGET_UNEXPECTED;
+ }
+ }
+
+ if(!strcmp(networkInfo->zeroconf_host, "err"))
+ {
+ LOG(PHIDGET_LOG_ERROR, "getZeroconfHostPort didn't work (error)");
+ free(networkInfo->zeroconf_host);
+ networkInfo->zeroconf_host = NULL;
+ return EPHIDGET_UNEXPECTED;
+ }
+
+ return EPHIDGET_OK;
+}
+
+int refreshZeroconfSBC(CPhidgetSBCHandle sbc)
+{
+ return EPHIDGET_OK;
+}
+
+int refreshZeroconfPhidget(CPhidgetHandle phid)
+{
+ return EPHIDGET_OK;
+}
+
+int InitializeZeroconf()
+{
+ int error;
+ //int ret = 1;
+ int timeout = 50; //500ms
+ const char *avahiVersion;
+
+ CThread_mutex_lock(&zeroconfInitLock);
+ if(Dns_sdInitialized)
+ {
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_OK;
+ }
+
+#ifdef ZEROCONF_RUNTIME_LINKING
+
+ avahiLibHandle = dlopen("libavahi-client.so",RTLD_LAZY);
+ if(!avahiLibHandle)
+ {
+ avahiLibHandle = dlopen("libavahi-client.so.3",RTLD_LAZY);
+ }
+ if(!avahiLibHandle)
+ {
+ LOG(PHIDGET_LOG_WARNING, "dlopen failed with error: %s", dlerror());
+ LOG(PHIDGET_LOG_WARNING, "Assuming that zeroconf is not supported on this machine.");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNSUPPORTED;
+ }
+
+ //These are always in Avahi
+ if(!(avahi_client_get_version_string_ptr = (avahi_client_get_version_string_type)dlsym(avahiLibHandle, "avahi_client_get_version_string"))) goto dlsym_err;
+ if(!(avahi_service_browser_new_ptr = (avahi_service_browser_new_type)dlsym(avahiLibHandle, "avahi_service_browser_new"))) goto dlsym_err;
+ if(!(avahi_service_resolver_new_ptr = (avahi_service_resolver_new_type)dlsym(avahiLibHandle, "avahi_service_resolver_new"))) goto dlsym_err;
+ if(!(avahi_service_resolver_free_ptr = (avahi_service_resolver_free_type)dlsym(avahiLibHandle, "avahi_service_resolver_free"))) goto dlsym_err;
+ if(!(avahi_record_browser_new_ptr = (avahi_record_browser_new_type)dlsym(avahiLibHandle, "avahi_record_browser_new"))) goto dlsym_err;
+ if(!(avahi_record_browser_free_ptr = (avahi_record_browser_free_type)dlsym(avahiLibHandle, "avahi_record_browser_free"))) goto dlsym_err;
+ if(!(avahi_service_name_join_ptr = (avahi_service_name_join_type)dlsym(avahiLibHandle, "avahi_service_name_join"))) goto dlsym_err;
+ if(!(avahi_client_new_ptr = (avahi_client_new_type)dlsym(avahiLibHandle, "avahi_client_new"))) goto dlsym_err;
+ if(!(avahi_client_free_ptr = (avahi_client_free_type)dlsym(avahiLibHandle, "avahi_client_free"))) goto dlsym_err;
+ if(!(avahi_strerror_ptr = (avahi_strerror_type)dlsym(avahiLibHandle, "avahi_strerror"))) goto dlsym_err;
+ if(!(avahi_client_errno_ptr = (avahi_client_errno_type)dlsym(avahiLibHandle, "avahi_client_errno"))) goto dlsym_err;
+
+ //These are in Avahi > 0.6.4
+ if(!(avahi_threaded_poll_new_ptr = (avahi_threaded_poll_new_type)dlsym(avahiLibHandle, "avahi_threaded_poll_new"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_free_ptr = (avahi_threaded_poll_free_type)dlsym(avahiLibHandle, "avahi_threaded_poll_free"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_get_ptr = (avahi_threaded_poll_get_type)dlsym(avahiLibHandle, "avahi_threaded_poll_get"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_start_ptr = (avahi_threaded_poll_start_type)dlsym(avahiLibHandle, "avahi_threaded_poll_start"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_stop_ptr = (avahi_threaded_poll_stop_type)dlsym(avahiLibHandle, "avahi_threaded_poll_stop"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_quit_ptr = (avahi_threaded_poll_quit_type)dlsym(avahiLibHandle, "avahi_threaded_poll_quit"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_lock_ptr = (avahi_threaded_poll_lock_type)dlsym(avahiLibHandle, "avahi_threaded_poll_lock"))) goto dlsym_err2;
+ if(!(avahi_threaded_poll_unlock_ptr = (avahi_threaded_poll_unlock_type)dlsym(avahiLibHandle, "avahi_threaded_poll_unlock"))) goto dlsym_err2;
+
+ goto dlsym_good;
+
+dlsym_err:
+ LOG(PHIDGET_LOG_WARNING, "dlsym failed with error: %s", dlerror());
+ LOG(PHIDGET_LOG_WARNING, "Assuming that zeroconf is not supported on this machine.");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNSUPPORTED;
+
+ //Old avahi didn't have the thread functions
+dlsym_err2:
+ LOG(PHIDGET_LOG_WARNING, "dlsym failed with error: %s", dlerror());
+ LOG(PHIDGET_LOG_WARNING, "Avahi is too old, upgrade to at least version 0.6.4.");
+ LOG(PHIDGET_LOG_WARNING, "Zeroconf will not be used on this machine.");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNSUPPORTED;
+
+dlsym_good:
+
+#endif
+
+ /* Allocate main loop object */
+ if (!(threaded_poll = avahi_threaded_poll_new_ptr())) {
+ LOG(PHIDGET_LOG_ERROR, "Failed to create threaded poll object.");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+
+ /* Allocate a new client */
+ client = avahi_client_new_ptr(avahi_threaded_poll_get_ptr(threaded_poll), 0, client_callback, NULL, &error);
+
+ /* Check wether creating the client object succeeded */
+ if (!client) {
+ LOG(PHIDGET_LOG_ERROR, "Failed to create client: %s", avahi_strerror_ptr(error));
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+
+ //get version
+ avahiVersion = avahi_client_get_version_string_ptr(client);
+
+ /* Create the service browsers */
+ if (!(zeroconf_browse_ws_ref = avahi_service_browser_new_ptr(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_phidget_ws._tcp", NULL, 0, DNSServiceBrowse_ws_CallBack, client))) {
+ LOG(PHIDGET_LOG_ERROR, "Failed to create service browser: %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+ if (!(zeroconf_browse_phidget_ref = avahi_service_browser_new_ptr(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_phidget._tcp", NULL, 0, DNSServiceBrowse_Phidget_CallBack, client))) {
+ LOG(PHIDGET_LOG_ERROR, "Failed to create service browser: %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+ if (!(zeroconf_browse_sbc_ref = avahi_service_browser_new_ptr(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_phidget_sbc._tcp", NULL, 0, DNSServiceBrowse_SBC_CallBack, client))) {
+ LOG(PHIDGET_LOG_ERROR, "Failed to create service browser: %s", avahi_strerror_ptr(avahi_client_errno_ptr(client)));
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+
+ if(avahi_threaded_poll_start_ptr(threaded_poll))
+ {
+ LOG(PHIDGET_LOG_ERROR, "avahi_threaded_poll_start_ptr failed");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+ //Thread is started successfully
+ else
+ {
+ //There is a bug in at least Avahi 0.6.16 (Debian Etch default) where thread_running is not set, so quit doesn't work!!!???!?!?!?!?!?!
+ //This is fixed in 0.6.24
+ //So I'll set it myself here
+ if(strcmp(avahiVersion, "avahi 0.6.24") < 0)
+ {
+ LOG(PHIDGET_LOG_INFO, "Fixing thread_running bug in avahi < 0.6.24");
+ threaded_poll->thread_running = 1;
+ }
+ }
+
+ while(!Dns_sdInitialized)
+ {
+ usleep(10000);
+ timeout--;
+ if(!timeout)
+ {
+ UninitializeZeroconf1(PFALSE);
+ LOG(PHIDGET_LOG_ERROR, "InitializeZeroconf Seems bad... Dns_sdInitialized wasn't set to true.");
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_UNEXPECTED;
+ }
+ }
+
+ LOG(PHIDGET_LOG_INFO, "InitializeZeroconf Seems good... (%s)",avahiVersion);
+
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_OK;
+
+}
+
+
+static int UninitializeZeroconf1(int lock)
+{
+ int ret;
+ /* Cleanup things */
+ if(lock)
+ CThread_mutex_lock(&zeroconfInitLock);
+ if(Dns_sdInitialized)
+ {
+ if (threaded_poll)
+ {
+ if((ret = avahi_threaded_poll_stop_ptr(threaded_poll)) == -1)
+ LOG(PHIDGET_LOG_WARNING, "avahi_threaded_poll_stop failed",ret);
+ avahi_client_free_ptr(client);
+ avahi_threaded_poll_free_ptr(threaded_poll);
+ threaded_poll = NULL;
+ client = NULL;
+ }
+ }
+
+ Dns_sdInitialized = FALSE;
+ if(lock)
+ CThread_mutex_unlock(&zeroconfInitLock);
+ return EPHIDGET_OK;
+}
+
+int UninitializeZeroconf()
+{
+ return UninitializeZeroconf1(PTRUE);
+}
|