Exemplo n.º 1
0
void AOTCompiledMethod::clear_inline_caches() {
  assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint");
  if (is_zombie()) {
    return;
  }

  RelocIterator iter(this);
  while (iter.next()) {
    iter.reloc()->clear_inline_cache();
    if (iter.type() == relocInfo::opt_virtual_call_type) {
      CompiledIC* cic = CompiledIC_at(&iter);
      assert(cic->is_clean(), "!");
      nativePltCall_at(iter.addr())->set_stub_to_clean();
    }
  }
}
    //
    // scavenge_local
    //
    // we can't return to the general pool because the general collector thread may
    // still be scanning us.  Instead we return data to our cache.
    //
    void ThreadLocalCollector::scavenge_local(size_t count, void *garbage[]) {
        size_t blocks_freed = 0;
        size_t bytes_freed = 0;
        size_t bytes_dropped = 0;
        
        // if collection checking is on then clear the check count for all the garbage blocks
        Zone *zone = _thread.zone();
        if (zone->collection_checking_enabled()) {
            zone->clear_garbage_checking_count(garbage, count);
        }
        
		GARBAGE_COLLECTION_COLLECTION_PHASE_BEGIN((auto_zone_t*)_zone, AUTO_TRACE_SCAVENGING_PHASE);
        for (size_t index = 0; index < count; index++) {
            void *block = garbage[index];
            // Only small quantum blocks are currently allocated locally, take advantage of that.
            Subzone *subzone = Subzone::subzone(block);
            usword_t q = subzone->quantum_index_unchecked(block);
            if (!subzone->has_refcount(q)) {
                blocks_freed++;
                size_t block_size = subzone->size(q);
                if (malloc_logger) malloc_logger(MALLOC_LOG_TYPE_DEALLOCATE | MALLOC_LOG_TYPE_HAS_ZONE, uintptr_t(_zone), uintptr_t(block), 0, 0, 0);
                if (!_thread.thread_cache_add(block, subzone, q)) {
                    // drop the block on the floor and leave it for the heap collector to find
                    subzone->allocate(q, subzone->length(q), AUTO_UNSCANNED, false, false);
                    bytes_dropped += block_size;
                } else {
                    bytes_freed += block_size;
                }
            } else {
                SubzoneBlockRef ref(subzone, q);
                if (!is_zombie(block)) {
                    _zone->handle_overretained_garbage(block, ref.refcount(), ref.layout());
                } else {
                    // transition the block from local garbage to retained global
                    SpinLock lock(subzone->admin()->lock()); // zombify_internal requires we hold the admin lock
                    subzone->allocate(q, subzone->length(q), subzone->layout(q), true, false);
                    _zone->zombify_internal(ref);
                }
            }
        }
        if (bytes_dropped) {
            _zone->adjust_allocation_counter(bytes_dropped);
        }
		GARBAGE_COLLECTION_COLLECTION_PHASE_END((auto_zone_t*)_zone, AUTO_TRACE_SCAVENGING_PHASE, (uint64_t)blocks_freed, (uint64_t)bytes_freed);
    }
Exemplo n.º 3
0
/*
 * The function that actually prints out the WHO reply for a client found
 */
void do_who(struct Client* sptr, struct Client* acptr, struct Channel* repchan,
            int fields, char* qrt)
{
  char *p1;
  struct Channel *chptr = repchan;

  static char buf1[512];
  /* NOTE: with current fields list and sizes this _cannot_ overrun, 
     and also the message finally sent shouldn't ever be truncated */

  p1 = buf1;
  buf1[1] = '\0';

  /* If we don't have a channel and we need one... try to find it,
     unless the listing is for a channel service, we already know
     that there are no common channels, thus use PubChannel and not
     SeeChannel */
  if (!chptr && (!fields || (fields & (WHO_FIELD_CHA | WHO_FIELD_FLA))) &&
      !IsChannelService(acptr))
  {
    struct Membership* chan;
    for (chan = cli_user(acptr)->channel; chan && !chptr; chan = chan->next_channel)
      if (PubChannel(chan->channel) &&
          (acptr == sptr || !IsZombie(chan)))
        chptr = chan->channel;
  }

  /* Place the fields one by one in the buffer and send it
     note that fields == NULL means "default query" */

  if (fields & WHO_FIELD_QTY)   /* Query type */
  {
    *(p1++) = ' ';
    if (BadPtr(qrt))
      *(p1++) = '0';
    else
      while ((*qrt) && (*(p1++) = *(qrt++)));
  }

  if (!fields || (fields & WHO_FIELD_CHA))
  {
    char *p2;
    *(p1++) = ' ';
    if ((p2 = (chptr ? chptr->chname : NULL)))
      while ((*p2) && (*(p1++) = *(p2++)));
    else
      *(p1++) = '*';
  }

  if (!fields || (fields & WHO_FIELD_UID))
  {
    char *p2 = cli_user(acptr)->username;
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (fields & WHO_FIELD_NIP)
  {
    const char* p2 = IsHiddenHost(acptr) && (!IsViewip(sptr) && acptr != sptr) ?
      feature_str(FEAT_HIDDEN_IP) :
      ircd_ntoa((const char*) &(cli_ip(acptr)));
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (!fields || (fields & WHO_FIELD_HOS))
  {
	char *p2 = (IsViewip(sptr) || acptr == sptr) ? get_realhost(acptr) : get_virtualhost(acptr);
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (!fields || (fields & WHO_FIELD_SER))
  {
    char *p2;
    int haspriv = IsAnOper(sptr) || es_representante(sptr);
    
    if (IsMe(cli_user(acptr)->server))
    {
      if ((sptr != acptr) && feature_bool(FEAT_HIS_WHO_SERVERNAME) && !haspriv)
        p2 = (char *)feature_str(FEAT_HIS_SERVERNAME);
      else
        p2 = cli_name(&me);
    }
    else
    {
      if (IsHiddenserv(cli_user(acptr)->server) && !haspriv)
        p2 = (char *)feature_str(FEAT_HIS_SERVERNAME);
      else
        p2 = cli_name(cli_user(acptr)->server);
    }
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (!fields || (fields & WHO_FIELD_NIC))
  {
    char *p2 = cli_name(acptr);
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (!fields || (fields & WHO_FIELD_FLA))
  {
    *(p1++) = ' ';
    if (cli_user(acptr)->away)
      *(p1++) = 'G';
    else
      *(p1++) = 'H';
    if ((IsAnOper(acptr) || es_representante(acptr) || IsPreoper(acptr))/* &&
	(HasPriv(acptr, PRIV_DISPLAY) || HasPriv(sptr, PRIV_SEE_OPERS))*/)
      *(p1++) = '*';
    if (fields) {
      /* If you specified flags then we assume you know how to parse
       * multiple channel status flags, as this is currently the only
       * way to know if someone has @'s *and* is +'d.
       */
      if (chptr && is_chan_op(acptr, chptr))
        *(p1++) = '@';
      if (chptr && has_voice(acptr, chptr))
        *(p1++) = '+';
	  if (chptr && is_chan_halfop(acptr, chptr))
		*(p1++) = '%';
	  if (chptr && is_chan_owner(acptr, chptr))
		*(p1++) = '.';
      if (chptr && is_zombie(acptr, chptr))
        *(p1++) = '!';
    }
    else {
      if (chptr && is_chan_op(acptr, chptr))
        *(p1++) = '@';
      else if (chptr && has_voice(acptr, chptr))
        *(p1++) = '+';
      else if (chptr && is_zombie(acptr, chptr))
        *(p1++) = '!';
	  else if (chptr && is_chan_halfop(acptr, chptr))
		*(p1++) = '%';
	  else if (chptr && is_chan_owner(acptr, chptr))
		*(p1++) = '.';
    }
    if (IsDeaf(acptr))
      *(p1++) = 'd';
    if (IsAnOper(sptr))
    {
      if (IsInvisible(acptr))
        *(p1++) = 'i';
      if (SendWallops(acptr))
        *(p1++) = 'w';
      if (SendDebug(acptr))
        *(p1++) = 'g';
    }
    if (HasHiddenHost(acptr))
      *(p1++) = 'x';
    if (IsAnOper(acptr))
      *(p1++) = 'o';
	if (IsPreoper(acptr))
	  *(p1++) = 'p';
	if (IsHelpOp(acptr))
	  *(p1++) = 'h';
	if (IsCoadmin(acptr))
	  *(p1++) = 'a';
	if (IsAdmin(acptr))
	  *(p1++) = 'A';
	if (IsDevel(acptr))
	  *(p1++) = 'D';
	if (IsViewip(acptr))
	  *(p1++) = 'X';
  }

  if (!fields || (fields & WHO_FIELD_DIS))
  {
    *p1++ = ' ';
    if (!fields)
      *p1++ = ':';              /* Place colon here for default reply */
    if (feature_bool(FEAT_HIS_WHO_HOPCOUNT) && !IsAnOper(sptr))
      *p1++ = (sptr == acptr) ? '0' : '3';
    else
      /* three digit hopcount maximum */
      p1 += ircd_snprintf(0, p1, 3, "%d", cli_hopcount(acptr));
  }

  if (fields & WHO_FIELD_IDL)
  {
    *p1++ = ' ';
    if (MyUser(acptr)) {
	    p1 += ircd_snprintf(0, p1, 11, "%d",
				CurrentTime - cli_user(acptr)->last);
    }    
    else {
    	    *p1++ = '0';
    }
  }

  if (!fields || (fields & WHO_FIELD_REN))
  {
    char *p2 = cli_info(acptr);
    *p1++ = ' ';
    if (fields)
      *p1++ = ':';              /* Place colon here for special reply */
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  if (fields & WHO_FIELD_ACC)
  {
    char *p2 = cli_user(acptr)->account;
    *(p1++) = ' ';
    while ((*p2) && (*(p1++) = *(p2++)));
  }

  /* The first char will always be an useless blank and we 
     need to terminate buf1 */
  *p1 = '\0';
  p1 = buf1;
  send_reply(sptr, fields ? RPL_WHOSPCRPL : RPL_WHOREPLY, ++p1);
}