void CcnLAC_dtor(CcnLAC self) {
if (self->pm != NULL) PollMgr_detach(self->pm, ccn_get_connection_fd(self->ccnh), &CcnLAC_initPollCb, self);
if (self->nbs != NULL) NBS_pollDetach(self->nbs);
ccn_destroy(&(self->ccnh));
if (self->ccnbor != NULL) CcnbOR_dtor(self->ccnbor);
free(self);
}
/**
* Base loop for the background CCN task
*
* This is the main execution loop for the background task responsible for
* interacting with the CCN network. It is from this point that many of the above methods are
* called to work the inbound messages from ccnx as well as sending out the data messages.
*
* \param data the task context information setup by the parent sink element thread
*/
static void
ccn_event_thread (void *data)
{
Gstccnxsink *me = (Gstccnxsink *) data;
struct ccn_charbuf *filtName;
struct ccn_charbuf *temp;
int res = 0;
GST_DEBUG ("CCNxSink event: *** event thread starting");
temp = ccn_charbuf_create ();
filtName = ccn_charbuf_create ();
/* A closure is what defines what to do when an inbound interest arrives */
if ((me->ccn_closure = calloc (1, sizeof (struct ccn_closure))) == NULL) {
GST_ELEMENT_ERROR (me, RESOURCE, READ, (NULL), ("closure alloc failed"));
return;
}
/* We setup the closure to contain the sink element context reference, and also tell it what function to call */
me->ccn_closure->data = me;
me->ccn_closure->p = new_interests;
me->timeouts = 0;
ccn_charbuf_append (filtName, me->name->buf, me->name->length);
/* This call will set up a handler for interests we expect to get from clients */
// hDump(DUMP_ADDR(filtName->buf), DUMP_SIZE(filtName->length));
ccn_set_interest_filter (me->ccn, filtName, me->ccn_closure);
GST_DEBUG ("CCNxSink event: interest filter registered\n");
/* Some debugging information */
temp->length = 0;
ccn_uri_append (temp, me->name->buf, me->name->length, TRUE);
GST_DEBUG ("CCNxSink event: using uri: %s\n", ccn_charbuf_as_string (temp));
/* Now that the interest is registered, we loop around waiting for something to do */
/* We pass control to ccnx for a while so it can work with any incoming or outgoing data */
/* and then we check our fifo queue for work to do. That's about it! */
/* We check to see if any problems have caused our ccnd connection to fail, and we reconnect */
while (res >= 0) {
GST_DEBUG ("CCNxSink event: *** looping");
res = ccn_run (me->ccn, 50);
check_fifo (me);
if (res < 0 && ccn_get_connection_fd (me->ccn) == -1) {
GST_DEBUG ("CCNxSink event: need to reconnect...");
/* Try reconnecting, after a bit of delay */
msleep ((30 + (getpid () % 30)) * 1000);
res = ccn_connect (me->ccn, ccndHost ());
}
}
GST_DEBUG ("CCNxSink event: *** event thread ending");
}
void CcnLAC_initPollCb(void* pself, PollMgrEvt evt, struct pollfd* fd) {
CcnLAC self = (CcnLAC)pself;
switch (evt) {
case PollMgrEvt_prepare:
CcnH_pollPrepare(self->ccnh, fd);
break;
case PollMgrEvt_result:
CcnH_pollRun(self->ccnh, fd);
break;
case PollMgrEvt_error:
self->error = true;
PollMgr_detach(self->pm, ccn_get_connection_fd(self->ccnh), &CcnLAC_initPollCb, self);
break;
}
}
int NdnMediaProcess::startThread() {
struct ccn *h;
/* Shut down any lingering session */
while (ndnState.ccn != NULL) {
ndnState.active = 0;
printf("waiting for old session to die\n");
}
h = ccn_create();
if (ccn_connect(h, NULL) == -1) {
ccn_perror(h, "Failed to contact ccnd");
ccn_destroy(&h);
return (-1);
}
pthread_mutexattr_init(&ccn_attr);
pthread_mutexattr_settype(&ccn_attr, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&ccn_mutex, &ccn_attr);
ndnState.ccn = h;
pfds[0].fd = ccn_get_connection_fd(ndnState.ccn);
pfds[0].events = POLLIN;
clock = new QTimer(this);
connect(clock, SIGNAL(timeout()), this, SLOT(tick()));
clock->start(PER_PACKET_LEN);
if (! isRunning()) {
fprintf(stderr, "Starting voice thread in media_pro\n");
ndnState.active = true;
start(QThread::HighestPriority);
#ifdef Q_OS_LINUX
int policy;
struct sched_param param;
if (pthread_getschedparam(pthread_self(), &policy, ¶m) == 0) {
if (policy == SCHED_OTHER) {
policy = SCHED_FIFO;
param.sched_priority = 1;
pthread_setschedparam(pthread_self(), policy, ¶m);
}
}
#endif
}
else
fprintf(stderr, "what the hell\n");
return 0;
}
/**
* Base loop for the background CCN task
*
* This is the main execution loop for the background task responsible for
* interacting with the CCN network. It is from this point that many of the above methods are
* called to work the inbound messages from ccnx as well as sending new interest messages.
*
* \param data the task context information setup by the parent sink element thread
*/
static void
ccn_event_thread (void *data)
{
Gstccnxsrc *src = (Gstccnxsrc *) data;
struct ccn *ccn = src->ccn;
int res = 0;
GST_DEBUG ("*** event thread starting");
/* We pass control to ccnx for a while so it can work with any incoming or outgoing data */
/* We check to see if any problems have caused our ccnd connection to fail, and we reconnect */
while (res >= 0) {
res = ccn_run (ccn, 1000);
if (res < 0 && ccn_get_connection_fd (ccn) == -1) {
/* Try reconnecting, after a bit of delay */
msleep ((30 + (getpid () % 30)) * 1000);
res = ccn_connect (ccn, ccndHost ());
}
}
GST_DEBUG ("*** event thread ending");
}
static int
ccnr_direct_client_refresh(struct ccn_schedule *sched,
void *clienth,
struct ccn_scheduled_event *ev,
int flags)
{
struct ccnr_handle *ccnr = clienth;
int microsec = 0;
if ((flags & CCN_SCHEDULE_CANCEL) == 0 &&
ccnr->direct_client != NULL &&
ccnr->direct_client_refresh == ev) {
microsec = ccn_process_scheduled_operations(ccnr->direct_client);
// XXX - This is not really right, since an incoming request can cause us to need to reschedule this event.
if CCNSHOULDLOG(ccnr, refresh, CCNL_FINEST)
ccnr_msg(ccnr, "direct_client_refresh %d in %d usec",
ccn_get_connection_fd(ccnr->direct_client), microsec);
if (microsec > ev->evint)
microsec = ev->evint;
if (microsec == 0)
microsec = CCN_INTEREST_LIFETIME_MICROSEC;
}
void GroupManager::StartThread() {
if (! isRunning()) {
debug("Starting Userlist Handling thread");
bRunning = true;
pfds[0].fd = ccn_get_connection_fd(ccn);
pfds[0].events = POLLIN;
start(QThread::HighestPriority);
#ifdef Q_OS_LINUX
// QThread::HighestPriority == Same as everything else...
int policy;
sched_param param;
if (pthread_getschedparam(pthread_self(), &policy, ¶m) == 0) {
if (policy == SCHED_OTHER) {
policy = SCHED_FIFO;
param.sched_priority = 1;
pthread_setschedparam(pthread_self(), policy, ¶m);
}
}
#endif
}
}
enum ccn_upcall_res CcnLAC_fetchFaceidCb(struct ccn_closure* selfp, enum ccn_upcall_kind kind, struct ccn_upcall_info* info) {
CcnLAC self = (CcnLAC)selfp->data;
switch (kind) {
case CCN_UPCALL_FINAL: {
free(selfp);
return CCN_UPCALL_RESULT_OK;
}
case CCN_UPCALL_INTEREST_TIMED_OUT: {
return CCN_UPCALL_RESULT_REEXPRESS;
}
case CCN_UPCALL_CONTENT_UNVERIFIED:
case CCN_UPCALL_CONTENT_KEYMISSING:
case CCN_UPCALL_CONTENT_RAW:
case CCN_UPCALL_CONTENT: {
struct ccn_forwarding_entry* fe = NULL;
const unsigned char* fe_ccnb = NULL;
size_t fe_ccnb_size = 0;
int res = ccn_content_get_value(info->content_ccnb, info->pco->offset[CCN_PCO_E], info->pco, &fe_ccnb, &fe_ccnb_size);
if (res == 0) fe = ccn_forwarding_entry_parse(fe_ccnb, fe_ccnb_size);
if (fe != NULL) {
self->faceid = fe->faceid;
ccn_forwarding_entry_destroy(&fe);
} else {
self->error = true;
}
PollMgr_detach(self->pm, ccn_get_connection_fd(self->ccnh), &CcnLAC_initPollCb, self);
void* emptyPDU = malloc(CCN_EMPTY_PDU_LENGTH);
memcpy(emptyPDU, CCN_EMPTY_PDU, CCN_EMPTY_PDU_LENGTH);
NBS_write(self->nbs, emptyPDU, 0, CCN_EMPTY_PDU_LENGTH, NULL);
NBS_pollAttach(self->nbs, self->pm);
return CCN_UPCALL_RESULT_OK;
}
default: {
return CCN_UPCALL_RESULT_ERR;
}
}
}
void CcnCC_pollDetach(CcnCC self, PollMgr pm) {
PollMgr_detach(pm, ccn_get_connection_fd(self->ccnh), &CcnCC_pollCb, self);
}
/**
* Create a new ccnr instance
* @param progname - name of program binary, used for locating helpers
* @param logger - logger function
* @param loggerdata - data to pass to logger function
*/
PUBLIC struct ccnr_handle *
r_init_create(const char *progname, ccnr_logger logger, void *loggerdata)
{
char *sockname = NULL;
const char *portstr = NULL;
const char *listen_on = NULL;
const char *d = NULL;
struct ccnr_handle *h = NULL;
struct hashtb_param param = {0};
struct ccn_charbuf *config = NULL;
int res;
h = calloc(1, sizeof(*h));
if (h == NULL)
return(h);
h->notify_after = 0; //CCNR_MAX_ACCESSION;
h->logger = logger;
h->loggerdata = loggerdata;
h->logpid = (int)getpid();
h->progname = progname;
h->debug = -1;
config = r_init_read_config(h);
if (config == NULL)
goto Bail;
r_init_parse_config(h, config, 0); /* silent pass to pick up CCNR_DEBUG */
h->debug = 1; /* so that we see any complaints */
h->debug = r_init_debug_getenv(h, "CCNR_DEBUG");
res = r_init_parse_config(h, config, 1);
if (res < 0) {
h->running = -1;
goto Bail;
}
r_init_parse_config(h, config, 2);
sockname = r_net_get_local_sockname();
h->skiplinks = ccn_indexbuf_create();
h->face_limit = 10; /* soft limit */
h->fdholder_by_fd = calloc(h->face_limit, sizeof(h->fdholder_by_fd[0]));
param.finalize_data = h;
param.finalize = &r_fwd_finalize_nameprefix;
h->nameprefix_tab = hashtb_create(sizeof(struct nameprefix_entry), ¶m);
param.finalize = 0; // PRUNED &r_fwd_finalize_propagating;
h->propagating_tab = hashtb_create(sizeof(struct propagating_entry), ¶m);
param.finalize = &r_proto_finalize_enum_state;
h->enum_state_tab = hashtb_create(sizeof(struct enum_state), ¶m);
h->min_stale = ~0;
h->max_stale = 0;
h->unsol = ccn_indexbuf_create();
h->ticktock.descr[0] = 'C';
h->ticktock.micros_per_base = 1000000;
h->ticktock.gettime = &r_util_gettime;
h->ticktock.data = h;
h->sched = ccn_schedule_create(h, &h->ticktock);
h->starttime = h->sec;
h->starttime_usec = h->usec;
h->oldformatcontentgrumble = 1;
h->oldformatinterestgrumble = 1;
h->cob_limit = 4201;
h->start_write_scope_limit = r_init_confval(h, "CCNR_START_WRITE_SCOPE_LIMIT", 0, 3, 3);
h->debug = 1; /* so that we see any complaints */
h->debug = r_init_debug_getenv(h, "CCNR_DEBUG");
h->syncdebug = r_init_debug_getenv(h, "CCNS_DEBUG");
portstr = getenv("CCNR_STATUS_PORT");
if (portstr == NULL || portstr[0] == 0 || strlen(portstr) > 10)
portstr = "";
h->portstr = portstr;
ccnr_msg(h, "CCNR_DEBUG=%d CCNR_DIRECTORY=%s CCNR_STATUS_PORT=%s", h->debug, h->directory, h->portstr);
listen_on = getenv("CCNR_LISTEN_ON");
if (listen_on != NULL && listen_on[0] != 0)
ccnr_msg(h, "CCNR_LISTEN_ON=%s", listen_on);
if (ccnr_init_repo_keystore(h, NULL) < 0) {
h->running = -1;
goto Bail;
}
r_util_reseed(h);
r_store_init(h);
if (h->running == -1) goto Bail;
while (h->active_in_fd >= 0) {
r_dispatch_process_input(h, h->active_in_fd);
r_store_trim(h, h->cob_limit);
ccn_schedule_run(h->sched);
}
ccnr_msg(h, "Repository file is indexed");
if (h->face0 == NULL) {
struct fdholder *fdholder;
fdholder = calloc(1, sizeof(*fdholder));
if (dup2(open("/dev/null", O_RDONLY), 0) == -1)
ccnr_msg(h, "stdin: %s", strerror(errno));
fdholder->filedesc = 0;
fdholder->flags = (CCNR_FACE_GG | CCNR_FACE_NORECV);
r_io_enroll_face(h, fdholder);
}
ccnr_direct_client_start(h);
d = getenv("CCNR_SKIP_VERIFY");
#if (CCN_API_VERSION >= 4004)
if (d != NULL && strcmp(d, "1") == 0) {
ccnr_msg(h, "CCNR_SKIP_VERIFY=%s", d);
ccn_defer_verification(h->direct_client, 1);
}
#endif
if (ccn_connect(h->direct_client, NULL) != -1) {
int af = 0;
int bufsize;
int flags;
int fd;
struct fdholder *fdholder;
fd = ccn_get_connection_fd(h->direct_client);
// Play a dirty trick here - if this wins, we can fix it right in the c lib later on...
af = try_tcp_instead(fd);
flags = CCNR_FACE_CCND;
if (af == AF_INET)
flags |= CCNR_FACE_INET;
else if (af == AF_INET6)
flags |= CCNR_FACE_INET6;
else
flags |= CCNR_FACE_LOCAL;
fdholder = r_io_record_fd(h, fd, "CCND", 5, flags);
if (fdholder == NULL) abort();
ccnr_uri_listen(h, h->direct_client, "ccnx:/%C1.M.S.localhost/%C1.M.SRV/repository",
&ccnr_answer_req, OP_SERVICE);
ccnr_uri_listen(h, h->direct_client, "ccnx:/%C1.M.S.neighborhood/%C1.M.SRV/repository",
&ccnr_answer_req, OP_SERVICE);
bufsize = r_init_confval(h, "CCNR_MIN_SEND_BUFSIZE", 1, 2097152, 16384);
establish_min_send_bufsize(h, fd, bufsize);
}
else
ccn_disconnect(h->direct_client); // Apparently ccn_connect error case needs work.
if (1 == r_init_confval(h, "CCNS_ENABLE", 0, 1, 1)) {
h->sync_plumbing = calloc(1, sizeof(struct sync_plumbing));
h->sync_plumbing->ccn = h->direct_client;
h->sync_plumbing->sched = h->sched;
h->sync_plumbing->client_methods = &sync_client_methods;
h->sync_plumbing->client_data = h;
h->sync_base = SyncNewBaseForActions(h->sync_plumbing);
}
if (-1 == load_policy(h))
goto Bail;
r_net_listen_on(h, listen_on);
ccnr_internal_client_start(h);
r_proto_init(h);
r_proto_activate_policy(h, h->parsed_policy);
if (merge_files(h) == -1)
r_init_fail(h, __LINE__, "Unable to merge additional repository data files.", errno);
if (h->running == -1) goto Bail;
if (h->sync_plumbing) {
// Start sync running
// returns < 0 if a failure occurred
// returns 0 if the name updates should fully restart
// returns > 0 if the name updates should restart at last fence
res = h->sync_plumbing->sync_methods->sync_start(h->sync_plumbing, NULL);
if (res < 0) {
r_init_fail(h, __LINE__, "starting sync", res);
abort();
}
else if (res > 0) {
// XXX: need to work out details of starting from last fence.
// By examination of code, SyncActions won't take this path
}
}
Bail:
if (sockname)
free(sockname);
sockname = NULL;
ccn_charbuf_destroy(&config);
if (h->running == -1)
r_init_destroy(&h);
return(h);
}
