public override bool InventoryTags(Tag tag, bool loop, InventoryTagDelegate itd, object context)
{
STPv3Response response;
STPv3Request request = new STPv3Request();
request.Tag = tag;
//request.RID = reader.ReaderID;
request.Command = STPv3Commands.SELECT_TAG;
request.Inventory = true;
request.Loop = loop;
issue:
request.Issue(this.m_device);
response = request.GetResponse();
if (response == null)
{
return(false);
}
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_LOOP_OFF)
{
goto issue;
}
while (true)
{
response = request.GetResponse();
if (response == null)
{
continue;
}
if (!response.Success)
{
return(false);
}
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_PASS)
{
Tag iTag = new Tag();
iTag.TID = response.TID;
iTag.Type = response.TagType;
//BTM - If we are simply performing an inventory then we let it run to
//completion to prevent later synchronization issues
if (itd(iTag, context) && loop)
{
return(true);
}
}
}
}
public Tag[] SelectTags(Tag tag)
{
ArrayList its = new ArrayList();
InventoryTagDelegate itd = delegate(Tag it, object ctx)
{
its.Add(it);
return(true);
};
this.InventoryTags(tag, false, itd, null);
return((Tag[])its.ToArray(typeof(Tag)));
}
public override bool InventoryTags(Tag tag, bool loop, InventoryTagDelegate itd, object context)
{
STPv3Response response;
STPv3Request request = new STPv3Request();
request.Tag = tag;
//request.RID = reader.ReaderID;
request.Command = STPv3Commands.SELECT_TAG;
request.Inventory = true;
request.Loop = loop;
if(m_device.Type==DeviceType.SERIAL)
{
issue:
request.Issue(this.m_device);
response = request.GetResponse();
if (response == null)
return false;
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_LOOP_OFF)
goto issue;
while (true)
{
response = request.GetResponse();
if (response == null)
continue;
if (!response.Success)
return false;
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_PASS)
{
Tag iTag = new Tag();
iTag.TID = response.TID;
iTag.Type = response.TagType;
//BTM - If we are simply performing an inventory then we let it run to
//completion to prevent later synchronization issues
if (itd(iTag, context) && loop)
{
return true;
}
}
}
}
//Not Tested!!! Lachezar Temelkov 02/19/2010
//When the user return false in the delegate, the routine/reader goes out of loop
//when user return rue it is keep on going
//the delegate is called every xx amount of miliseconds, regardless if there is tag found or not
//the time out is specified m_devise.setreadertimeout! use 20ms for instance
else if ((m_device.Type == DeviceType.TCP)||(m_device.Type==DeviceType.USB))
{
//TCP code
bool stoploop = false;
try
{
issue:
request.Issue(this.m_device);
while (true)
{
//response return with a time out,regardles if Tag is Found or Not
response = request.GetResponse();
if ((response.ResponseCode == STPv3ResponseCode.SELECT_TAG_LOOP_OFF) && (stoploop==false))
goto issue;
switch (response.ResponseCode)
{
case STPv3ResponseCode.SELECT_FILE_PASS:
{
Tag iTag = new Tag();
iTag.Type = response.TagType;
iTag.TID = response.TID;
stoploop=itd(iTag, context);
if ((stoploop==true)&& loop)
{
request.Issue(this.m_device);
}
break;
}
case STPv3ResponseCode.SELECT_TAG_FAIL:
{
Debug.Print("Selecet Tag fail--Inventory Done");
return true;
}
case STPv3ResponseCode.SELECT_TAG_LOOP_OFF:
{
Debug.Print("Selecet Tag fail--Inventory Done");
return true;
}
case STPv3ResponseCode.READER_TIME_OUT:
{
Tag iTag = null;
stoploop = itd(iTag, context);
if ((stoploop == true)&& loop)
{
request.Issue(this.m_device);
}
break;
}
}
}
}
catch (NullReferenceException ex) //response is null exception
{
//if response is null
throw new Exception("Null Device Reference in TCP object");
}
catch (Exception e) //general exception just in case
{
throw new Exception("Error Inventory mode");
}
}//end tcp
else
{
throw new Exception("Unknown Interface Type in Inventory Mode");
}
}
/// <summary> /// Inventory tags in the readers field. /// </summary> /// <param name="tag">This parameter describes the tags to inventory (e.g. by type, by epc, by afi, etc...).</param> /// <param name="loop">True indicates the reader should inventory tags until explicitly told to stop</param> /// <param name="itd">Delegate to call when a tag is inventoried. Any long running or computationally intensive work should /// be done outside of the this function call so as not to impede the inventory process.</param> /// <param name="context">Context object passed through to delegate call</param> /// <returns>True if the call to InventoryTags was terminated by a call to the InventoryTagDelegate, false if terminated because of another reason</returns> public abstract bool InventoryTags(Tag tag, bool loop, InventoryTagDelegate itd, object context);
public override bool InventoryTags(Tag tag, bool loop, InventoryTagDelegate itd, object context)
{
STPv3Response response;
STPv3Request request = new STPv3Request();
request.Tag = tag;
//request.RID = reader.ReaderID;
request.Command = STPv3Commands.SELECT_TAG;
request.Inventory = true;
request.Loop = loop;
issue:
request.Issue(this.m_device);
response = request.GetResponse();
if (response == null)
return false;
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_LOOP_OFF)
goto issue;
while (true)
{
response = request.GetResponse();
if (response == null)
continue;
if (!response.Success)
return false;
if (response.ResponseCode == STPv3ResponseCode.SELECT_TAG_PASS)
{
Tag iTag = new Tag();
iTag.TID = response.TID;
iTag.Type = response.TagType;
//BTM - If we are simply performing an inventory then we let it run to
//completion to prevent later synchronization issues
if (itd(iTag, context) && loop)
{
return true;
}
}
}
}
/// <summary> /// Inventory tags in the readers field. /// </summary> /// <param name="tag">This parameter describes the tags to inventory (e.g. by type, by epc, by afi, etc...).</param> /// <param name="loop">True indicates the reader should inventory tags until explicitly told to stop</param> /// <param name="itd">Delegate to call when a tag is inventoried. Any long running or computationally intensive work should /// be done outside of the this function call so as not to impede the inventory process.</param> /// <param name="context">Context object passed through to delegate call</param> /// <returns>True if the call to InventoryTags was terminated by a call to the InventoryTagDelegate, false if terminated because of another reason</returns> public abstract bool InventoryTags(Tag tag, bool loop, InventoryTagDelegate itd, object context);