C++ CONV函数代码示例

int C2F(db2int)(int *typ, int *n, double *dx, int *incx, int *dy, int *incy)
{
    int i1;
    static int i, ix, iy;

    --dx;
    i1 = *n;
    if (i1 <= 0)
    {
        return 0;
    }
    switch (*typ)
    {
        case 1:
            CONV(integer1);
            break;
        case 2:
            CONV(integer2);
            break;
        case 4:
            CONV(int) ;
            break;
    }
    return 0;
}

	void BoneNode::generateBoneLine( std::vector< Vector3 >& lineVec , Matrix4 const& trans , int frame )
	{
#if 0
		Matrix4 nextMat;
		calcFrameTransform( nextMat , trans , frame );

		Vector3 org = motionData[0].pos * trans;

		for( NodeList::iterator iter ( mChildren.begin() ) , end( mChildren.end() );
			iter != end ; ++iter )
		{
			BoneNode* bone = static_cast< BoneNode* >( CONV(iter) );
			Vector3 pos =  bone->motionData[0].pos * nextMat;

			lineVec.push_back( org );
			lineVec.push_back( pos );
		}

		for( NodeList::iterator iter ( mChildren.begin() ) , end( mChildren.end() );
			iter != end ; ++iter )
		{
			castBone( CONV(iter) )->generateBoneLine( lineVec , nextMat , frame );
		}
#endif
	}

static void
ipclose(Chan* c)
{
	Fs *f;

	f = ipfs[c->dev];
	switch(TYPE(c->qid)) {
	default:
		break;
	case Qlog:
		if(c->flag & COPEN)
			netlogclose(f);
		break;
	case Qdata:
	case Qctl:
	case Qerr:
		if(c->flag & COPEN)
			closeconv(f->p[PROTO(c->qid)]->conv[CONV(c->qid)]);
		break;
	case Qsnoop:
		if(c->flag & COPEN)
			decref(&f->p[PROTO(c->qid)]->conv[CONV(c->qid)]->snoopers);
		break;
	}
	free(((IPaux*)c->aux)->owner);
	free(c->aux);
}

static void to_PCM_double(NeAACDecHandle hDecoder, real_t **input,
                          uint8_t channels, uint16_t frame_len,
                          double **sample_buffer)
{
    uint8_t ch, ch1;
    uint16_t i;

    switch (CONV(channels,hDecoder->downMatrix))
    {
    case CONV(1,0):
    case CONV(1,1):
        for(i = 0; i < frame_len; i++)
        {
            real_t inp = input[hDecoder->internal_channel[0]][i];
            (*sample_buffer)[i] = (double)inp*FLOAT_SCALE;
        }
        break;
    case CONV(2,0):
        if (hDecoder->upMatrix)
        {
            ch = hDecoder->internal_channel[0];
            for(i = 0; i < frame_len; i++)
            {
                real_t inp0 = input[ch][i];
                (*sample_buffer)[(i*2)+0] = (double)inp0*FLOAT_SCALE;
                (*sample_buffer)[(i*2)+1] = (double)inp0*FLOAT_SCALE;
            }
        } else {
            ch  = hDecoder->internal_channel[0];
            ch1 = hDecoder->internal_channel[1];
            for(i = 0; i < frame_len; i++)
            {
                real_t inp0 = input[ch ][i];
                real_t inp1 = input[ch1][i];
                (*sample_buffer)[(i*2)+0] = (double)inp0*FLOAT_SCALE;
                (*sample_buffer)[(i*2)+1] = (double)inp1*FLOAT_SCALE;
            }
        }
        break;
    default:
        for (ch = 0; ch < channels; ch++)
        {
            for(i = 0; i < frame_len; i++)
            {
                real_t inp = get_sample(input, ch, i, hDecoder->downMatrix, hDecoder->internal_channel);
                (*sample_buffer)[(i*channels)+ch] = (double)inp*FLOAT_SCALE;
            }
        }
        break;
    }
}

static long
cmdread(Chan *ch, void *a, long n, vlong offset)
{
	Conv *c;
	char *p, *cmds;
	int fd;

	USED(offset);

	p = a;
	switch(TYPE(ch->qid)) {
	default:
		error(Eperm);
	case Qcmd:
	case Qtopdir:
	case Qconvdir:
		return devdirread(ch, a, n, 0, 0, cmdgen);
	case Qctl:
		sprint(up->genbuf, "%ld", CONV(ch->qid));
		return readstr(offset, p, n, up->genbuf);
	case Qstatus:
		c = cmd.conv[CONV(ch->qid)];
		cmds = "";
		if(c->cmd != nil)
			cmds = c->cmd->f[1];
		snprint(up->genbuf, sizeof(up->genbuf), "cmd/%d %d %s %q %q\n",
			c->x, c->inuse, c->state, c->dir, cmds);
		return readstr(offset, p, n, up->genbuf);
	case Qdata:
	case Qstderr:
		fd = 1;
		if(TYPE(ch->qid) == Qstderr)
			fd = 2;
		c = cmd.conv[CONV(ch->qid)];
		qlock(&c->l);
		if(c->fd[fd] == -1){
			qunlock(&c->l);
			return 0;
		}
		qunlock(&c->l);
		osenter();
		n = read(c->fd[fd], a, n);
		osleave();
		if(n < 0)
			oserror();
		return n;
	case Qwait:
		c = cmd.conv[CONV(ch->qid)];
		return qread(c->waitq, a, n);
	}
}

long
ipread(Chan *ch, void *a, long n, vlong offset)
{
	int r;
	Conv *c;
	Proto *x;
	uchar ip[4];
	char buf[128], *p;

/*print("ipread %s %lux\n", c2name(ch), (long)ch->qid.path);*/
	p = a;
	switch(TYPE(ch->qid)) {
	default:
		error(Eperm);
	case Qcs:
		return csread(ch, a, n, offset);
	case Qprotodir:
	case Qtopdir:
	case Qconvdir:
		return devdirread(ch, a, n, 0, 0, ipgen);
	case Qctl:
		sprint(buf, "%d", CONV(ch->qid));
		return readstr(offset, p, n, buf);
	case Qremote:
		c = proto[PROTO(ch->qid)].conv[CONV(ch->qid)];
		hnputl(ip, c->raddr);
		sprint(buf, "%I!%d\n", ip, c->rport);
		return readstr(offset, p, n, buf);
	case Qlocal:
		c = proto[PROTO(ch->qid)].conv[CONV(ch->qid)];
		hnputl(ip, c->laddr);
		sprint(buf, "%I!%d\n", ip, c->lport);
		return readstr(offset, p, n, buf);
	case Qstatus:
		x = &proto[PROTO(ch->qid)];
		c = x->conv[CONV(ch->qid)];
		sprint(buf, "%s/%d %d %s \n",
			c->p->name, c->x, c->r.ref, c->state);
		return readstr(offset, p, n, buf);
	case Qdata:
		c = proto[PROTO(ch->qid)].conv[CONV(ch->qid)];
		r = so_recv(c->sfd, a, n, 0);
		if(r < 0){
			oserrstr();
			nexterror();
		}
		return r;
	}
}

static int
cmdwstat(Chan *c, uchar *dp, int n)
{
	Dir *d;
	Conv *cv;

	switch(TYPE(c->qid)){
	default:
		error(Eperm);
	case Qctl:
	case Qdata:
	case Qstderr:
		d = malloc(sizeof(*d)+n);
		if(d == nil)
			error(Enomem);
		if(waserror()){
			free(d);
			nexterror();
		}
		n = convM2D(dp, n, d, (char*)&d[1]);
		if(n == 0)
			error(Eshortstat);
		cv = cmd.conv[CONV(c->qid)];
		if(!iseve() && strcmp(up->env->user, cv->owner) != 0)
			error(Eperm);
		if(!emptystr(d->uid))
			kstrdup(&cv->owner, d->uid);
		if(d->mode != ~0UL)
			cv->perm = d->mode & 0777;
		poperror();
		free(d);
		break;
	}
	return n;
}

static int
ipwstat(Chan *c, uchar *dp, int n)
{
	Dir d;
	Conv *cv;
	Fs *f;
	Proto *p;

	f = ipfs[c->dev];
	switch(TYPE(c->qid)) {
	default:
		error(Eperm);
		break;
	case Qctl:
	case Qdata:
		break;
	}

	n = convM2D(dp, n, &d, nil);
	if(n > 0){
		p = f->p[PROTO(c->qid)];
		cv = p->conv[CONV(c->qid)];
		if(!iseve() && strcmp(ATTACHER(c), cv->owner) != 0)
			error(Eperm);
		if(d.uid[0])
			kstrdup(&cv->owner, d.uid);
		cv->perm = d.mode & 0777;
	}
	return n;
}

static long
ipbwrite(Chan* ch, Block* bp, ulong offset)
{
	Conv *c;
	Proto *x;
	Fs *f;
	int n;

	switch(TYPE(ch->qid)){
	case Qdata:
		f = ipfs[ch->dev];
		x = f->p[PROTO(ch->qid)];
		c = x->conv[CONV(ch->qid)];

		if(c->wq == nil)
			error(Eperm);

		if(bp->next)
			bp = concatblock(bp);
		n = BLEN(bp);
		qbwrite(c->wq, bp);
		return n;
	default:
		return devbwrite(ch, bp, offset);
	}
}

void
ipclose(Chan *c)
{
	Conv *cc;

	switch(TYPE(c->qid)) {
	case Qcs:
		csclose(c);
		break;
	case Qdata:
	case Qctl:
		if((c->flag & COPEN) == 0)
			break;
		cc = proto[PROTO(c->qid)].conv[CONV(c->qid)];
		if(decref(&cc->r) != 0)
			break;
		strcpy(cc->owner, "network");
		cc->perm = 0666;
		cc->state = "Closed";
		cc->laddr = 0;
		cc->raddr = 0;
		cc->lport = 0;
		cc->rport = 0;
		close(cc->sfd);
		break;
	}
}

/*  BAD  Sheets need work  */
void parse_sheet (int fd)
{
    char localbuf[1000];
    char filename[1000];
    char filetext[1000];
    int size;
    int index;
    int n;
    int x1,y1,x2,y2;

    size = read_block(fd,localbuf,15,sizeof(localbuf));
    // fprintf(stderr,"Sheet %d bytes\n",size);

    x1=CONVX(CONV16(localbuf,0));
    y1=CONVY(CONV16(localbuf,2));

    x2=CONV(CONV16(localbuf,4));
    y2=CONV(CONV16(localbuf,6));
    index = 8;

    /* BAD 5 bytes - dunno? */
    index += 5;

    n = 1+read_string(filename,sizeof(filename),localbuf+index);
    index += n;
    n = 1+read_string(filetext,sizeof(filetext),localbuf+index);
    index += n;

    /* BAD Implement Hierarchy properly! */
    fprintf(stderr,"Hierarchy\n");
    fprintf(stderr,"xy = %d %d %d %d\n",x1,y1,x2,y2);
    for (n=8; n<13; ++n) fprintf(stderr,"%02x ",localbuf[n] & 0xff);
    fprintf(stderr,"\nfile = %s\n",filename);
    fprintf(stderr,"text = %s\n",filetext);

    /* BAD not the way to do it... */
    fprintf(stdout,"C %d %d 0 0 0 include-1.sym\n",x1,y1-y2);
    fprintf(stdout,"{\n");
    fprintf(stdout,"B %d %d %d %d %d 0 0 0 -1 -1 0 -1 -1 -1 -1 -1\n",
					x1,y1-y2,x2,y2,GRAPHIC_COLOR);
    fprintf(stdout,"T %d %d %d %d 0 1 0 0\n"
		   "source=%s\n",x1,y1-y2,ATTRIBUTE_COLOR,TEXTSIZE,filename);
    fprintf(stdout,"T %d %d %d %d 1 1 0 0\n"
		   "%s\n",x1,(y1-y2)-scale,ATTRIBUTE_COLOR,TEXTSIZE,filetext);
    fprintf(stdout,"}\n");
}

static int
ip3gen(Chan *c, int i, Dir *dp)
{
	Qid q;
	Conv *cv;
	char *p;

	cv = ipfs[c->dev]->p[PROTO(c->qid)]->conv[CONV(c->qid)];
	if(cv->owner == nil)
		kstrdup(&cv->owner, eve);
	mkqid(&q, QID(PROTO(c->qid), CONV(c->qid), i), 0, QTFILE);

	switch(i) {
	default:
		return -1;
	case Qctl:
		devdir(c, q, "ctl", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qdata:
		devdir(c, q, "data", qlen(cv->rq), cv->owner, cv->perm, dp);
		return 1;
	case Qerr:
		devdir(c, q, "err", qlen(cv->eq), cv->owner, cv->perm, dp);
		return 1;
	case Qlisten:
		devdir(c, q, "listen", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qlocal:
		p = "local";
		break;
	case Qremote:
		p = "remote";
		break;
	case Qsnoop:
		if(strcmp(cv->p->name, "ipifc") != 0)
			return -1;
		devdir(c, q, "snoop", qlen(cv->sq), cv->owner, 0400, dp);
		return 1;
	case Qstatus:
		p = "status";
		break;
	}
	devdir(c, q, p, 0, cv->owner, 0444, dp);
	return 1;
}

void convert_packet (struct rtp_packet_t *packet, enum conversion conv_dir)
{
  if (conv_dir == NTOH)
  {
#define CONV(var) var = ntohs ((uint16_t) var);
  }
  else
  {
#define CONV(var) var = ntohs ((uint16_t) var);
  }

  CONV (packet->connection_id);
  CONV (packet->type);
  CONV (packet->status);

  char tmp[PATH_LEN];
  string_byte_order_convert (tmp, packet->buffer, PATH_LEN, conv_dir);

  strcpy (packet->buffer, tmp);
}

// qemu seems to use 24-hour GWT and the values are BCD encoded
void
cmostime(struct rtcdate *r)
{
  struct rtcdate t1, t2;
  int sb, bcd;

  sb = cmos_read(CMOS_STATB);

  bcd = (sb & (1 << 2)) == 0;

  // make sure CMOS doesn't modify time while we read it
  for(;;) {
    fill_rtcdate(&t1);
    if(cmos_read(CMOS_STATA) & CMOS_UIP)
        continue;
    fill_rtcdate(&t2);
    if(memcmp(&t1, &t2, sizeof(t1)) == 0)
      break;
  }

  // convert
  if(bcd) {
#define    CONV(x)     (t1.x = ((t1.x >> 4) * 10) + (t1.x & 0xf))
    CONV(second);
    CONV(minute);
    CONV(hour  );
    CONV(day   );
    CONV(month );
    CONV(year  );
#undef     CONV
  }

  *r = t1;
  r->year += 2000;
}

static int
cmd3gen(Chan *c, int i, Dir *dp)
{
	Qid q;
	Conv *cv;

	cv = cmd.conv[CONV(c->qid)];
	switch(i){
	default:
		return -1;
	case Qdata:
		mkqid(&q, QID(CONV(c->qid), Qdata), 0, QTFILE);
		devdir(c, q, "data", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qstderr:
		mkqid(&q, QID(CONV(c->qid), Qstderr), 0, QTFILE);
		devdir(c, q, "stderr", 0, cv->owner, 0444, dp);
		return 1;
	case Qctl:
		mkqid(&q, QID(CONV(c->qid), Qctl), 0, QTFILE);
		devdir(c, q, "ctl", 0, cv->owner, cv->perm, dp);
		return 1;
	case Qstatus:
		mkqid(&q, QID(CONV(c->qid), Qstatus), 0, QTFILE);
		devdir(c, q, "status", 0, cv->owner, 0444, dp);
		return 1;
	case Qwait:
		mkqid(&q, QID(CONV(c->qid), Qwait), 0, QTFILE);
		devdir(c, q, "wait", 0, cv->owner, 0444, dp);
		return 1;
	}
}