public virtual async Task <YSms> fetchPdu(int slot)
{
byte[] binPdu;
List <string> arrPdu = new List <string>();
string hexPdu;
YSms sms;
binPdu = await this._download("sms.json?pos=" + Convert.ToString(slot) + "&len=1");
arrPdu = this.imm_json_get_array(binPdu);
hexPdu = this.imm_decode_json_string(arrPdu[0]);
sms = new YSms(this);
await sms.set_slot(slot);
await sms.parsePdu(YAPIContext.imm_hexStrToBin(hexPdu));
return(sms);
}
public virtual async Task <int> checkNewMessages()
{
string bitmapStr;
byte[] prevBitmap;
byte[] newBitmap;
int slot;
int nslots;
int pduIdx;
int idx;
int bitVal;
int prevBit;
int i;
int nsig;
int cnt;
string sig;
List <YSms> newArr = new List <YSms>();
List <YSms> newMsg = new List <YSms>();
List <YSms> newAgg = new List <YSms>();
List <string> signatures = new List <string>();
YSms sms;
bitmapStr = await this.get_slotsBitmap();
if (bitmapStr == _prevBitmapStr)
{
return(YAPI.SUCCESS);
}
prevBitmap = YAPIContext.imm_hexStrToBin(_prevBitmapStr);
newBitmap = YAPIContext.imm_hexStrToBin(bitmapStr);
_prevBitmapStr = bitmapStr;
nslots = 8 * (newBitmap).Length;
newArr.Clear();
newMsg.Clear();
signatures.Clear();
nsig = 0;
// copy known messages
pduIdx = 0;
while (pduIdx < _pdus.Count)
{
sms = _pdus[pduIdx];
slot = await sms.get_slot();
idx = ((slot) >> (3));
if (idx < (newBitmap).Length)
{
bitVal = ((1) << ((((slot) & (7)))));
if ((((newBitmap[idx]) & (bitVal))) != 0)
{
newArr.Add(sms);
if (await sms.get_concatCount() == 0)
{
newMsg.Add(sms);
}
else
{
sig = await sms.get_concatSignature();
i = 0;
while ((i < nsig) && ((sig).Length > 0))
{
if (signatures[i] == sig)
{
sig = "";
}
i = i + 1;
}
if ((sig).Length > 0)
{
signatures.Add(sig);
nsig = nsig + 1;
}
}
}
}
pduIdx = pduIdx + 1;
}
// receive new messages
slot = 0;
while (slot < nslots)
{
idx = ((slot) >> (3));
bitVal = ((1) << ((((slot) & (7)))));
prevBit = 0;
if (idx < (prevBitmap).Length)
{
prevBit = ((prevBitmap[idx]) & (bitVal));
}
if ((((newBitmap[idx]) & (bitVal))) != 0)
{
if (prevBit == 0)
{
sms = await this.fetchPdu(slot);
newArr.Add(sms);
if (await sms.get_concatCount() == 0)
{
newMsg.Add(sms);
}
else
{
sig = await sms.get_concatSignature();
i = 0;
while ((i < nsig) && ((sig).Length > 0))
{
if (signatures[i] == sig)
{
sig = "";
}
i = i + 1;
}
if ((sig).Length > 0)
{
signatures.Add(sig);
nsig = nsig + 1;
}
}
}
}
slot = slot + 1;
}
_pdus = newArr;
// append complete concatenated messages
i = 0;
while (i < nsig)
{
sig = signatures[i];
cnt = 0;
pduIdx = 0;
while (pduIdx < _pdus.Count)
{
sms = _pdus[pduIdx];
if (await sms.get_concatCount() > 0)
{
if (await sms.get_concatSignature() == sig)
{
if (cnt == 0)
{
cnt = await sms.get_concatCount();
newAgg.Clear();
}
newAgg.Add(sms);
}
}
pduIdx = pduIdx + 1;
}
if ((cnt > 0) && (newAgg.Count == cnt))
{
sms = new YSms(this);
await sms.set_parts(newAgg);
newMsg.Add(sms);
}
i = i + 1;
}
_messages = newMsg;
return(YAPI.SUCCESS);
}
