// Check the TServer event buffer
public void checkTServer()
{
// Define the mandatory (unused) private data buffer
Csta.PrivateData_t privData = new Csta.PrivateData_t();
privData.vendor = "MERLIN ".ToCharArray();
privData.length = 4;
privData.data = "N".ToCharArray();
// Define the event buffer that contains data passed back from TServer
eventBuf = new Csta.EventBuf_t();
ushort numEvents = 0;
ushort eventBufSize = (ushort)Csta.CSTA_MAX_HEAP;
// Poll the event queue to see if any call events are occurring
try
{
int polledEvent = Csta.acsGetEventPoll(acsHandle, ref eventBuf, ref eventBufSize, ref privData, ref numEvents);
}
catch (System.Exception eEventPoll)
{
// If we can't get back a confirmation record the error and inform the user
MessageBox.Show("There was a TServer error. Logging the incident and continuing the application.", "TServer Error");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, eEventPoll.Message.ToString(), EventLogEntryType.Warning, 234);
return;
}
// Parse out the data elements in the event buffer...
// The event header
UInt32 numAcsHandle = BitConverter.ToUInt32(eventBuf.data, 0);
ushort numEventClass = BitConverter.ToUInt16(eventBuf.data, 4);
ushort numEventType = BitConverter.ToUInt16(eventBuf.data, 6);
TServerBufferEventArgs args = new TServerBufferEventArgs(numEventClass, numEventType);
this.TServerBufferPoll(this, args);
}
// The public method to open the ACS stream
public bool open(string strLoginId, string strPasswd, string strServerId)
{
// Convert the parameters to character arrays
char[] serverId = strServerId.ToCharArray();
char[] loginId = strLoginId.ToCharArray();
char[] passwd = strPasswd.ToCharArray();
// Define the initial set of variables used for opening the ACS Stream
int invokeIdType = 1;
UInt32 invokeId = 0;
int streamType = 1;
char[] appName = "Mojo".ToCharArray();
int acsLevelReq = 1;
char[] apiVer = "TS1-2".ToCharArray();
ushort sendQSize = 0;
ushort sendExtraBufs = 0;
ushort recvQSize = 0;
ushort recvExtraBufs = 0;
// Define the mandatory (but unused) private data structure
Csta.PrivateData_t privData = new Csta.PrivateData_t();
privData.vendor = "MERLIN ".ToCharArray();
privData.length = 4;
privData.data = "N".ToCharArray();
// Define the event buffer pointer that gets data back from the TServer
ushort numEvents = 0;
Csta.EventBuf_t eventBuf = new Csta.EventBuf_t();
ushort eventBufSize = (ushort)Csta.CSTA_MAX_HEAP;
// Open the ACS stream
try
{
int openStream = Csta.acsOpenStream(ref acsHandle, invokeIdType, invokeId, streamType, serverId, loginId, passwd, appName, acsLevelReq, apiVer, sendQSize, sendExtraBufs, recvQSize, recvExtraBufs, ref privData);
}
catch (System.Exception eOpenStream)
{
// If we can't open the stream record the error and inform the user
MessageBox.Show("There was a TServer error. Closing the application and logging the incident.", "TServer Error");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, eOpenStream.Message.ToString(), EventLogEntryType.Warning, 234);
return(false);
}
// Wait a second to poll the event buffer
System.Threading.Thread.Sleep(1000);
// Poll the event buffer
try
{
int openStreamConf = Csta.acsGetEventPoll(acsHandle, ref eventBuf, ref eventBufSize, ref privData, ref numEvents);
}
catch (System.Exception eOpenStreamConf)
{
// If we can't get back a confirmation record the error and inform the user
MessageBox.Show("There was a TServer error. Closing the application and logging the incident.", "TServer Error");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, eOpenStreamConf.Message.ToString(), EventLogEntryType.Warning, 234);
return(false);
}
// Parse out the data elements in the event buffer...
// The event header
UInt32 numAcsHandle = BitConverter.ToUInt32(eventBuf.data, 0);
ushort numEventClass = BitConverter.ToUInt16(eventBuf.data, 4);
ushort numEventType = BitConverter.ToUInt16(eventBuf.data, 6);
// The remainder of the open stream conf structure
numInvokeId = BitConverter.ToUInt32(eventBuf.data, 8);
string strApiVer = System.Text.ASCIIEncoding.ASCII.GetString(eventBuf.data, 12, 21);
string strLibVer = System.Text.ASCIIEncoding.ASCII.GetString(eventBuf.data, 33, 21);
string strTsrvVer = System.Text.ASCIIEncoding.ASCII.GetString(eventBuf.data, 54, 21);
string strDrvrVer = System.Text.ASCIIEncoding.ASCII.GetString(eventBuf.data, 75, 21);
if (numEventClass == Csta.ACSCONFIRMATION && numEventType == Csta.ACS_OPEN_STREAM_CONF)
{
// The stream has been successfully opened
return(true);
}
else
{
// If we can't get back the open stream confirmation record the error and inform the user
string strStreamOpenFailed = "The stream was not opened. The Event Class code returned was " + numEventClass + " and the Event Type returned was " + numEventType + ".";
MessageBox.Show("The stream was not opened.", "Open Stream Failed");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, strStreamOpenFailed, EventLogEntryType.Warning, 234);
return(false);
}
}
// The public method to monitor the provided extension
public bool monitor(string strExtension)
{
// Convert the extension string to a character array
chExtension = strExtension.ToCharArray();
// Define the mandatory (unused) private data structure
Csta.PrivateData_t privData = new Csta.PrivateData_t();
privData.vendor = "MERLIN ".ToCharArray();
privData.length = 4;
privData.data = "N".ToCharArray();
// Define the various event monitor filters...
// Any filters NOT added will allow those events to be monitored
Csta.CSTAMonitorFilter_t monitorFilter = new Csta.CSTAMonitorFilter_t();
monitorFilter.call = 0xFFFF - Csta.CF_DELIVERED - Csta.CF_CONNECTION_CLEARED - Csta.CF_ESTABLISHED - Csta.CF_NETWORK_REACHED; // Monitor these call events
monitorFilter.feature = 0; // Monitor everything feature-wise
monitorFilter.agent = 0; // Monitor everything agent-wise
monitorFilter.maintenance = 0; // Monitor everything maintenance-wise
monitorFilter.privateFilter = 1; // Mandatory but unused
try
{
int monitorDevice = Csta.cstaMonitorDevice(acsHandle, numInvokeId, chExtension, ref monitorFilter, ref privData);
}
catch (System.Exception eMonitor)
{
// If we can't get back a confirmation record the error and inform the user
MessageBox.Show("There was a TServer error. Closing the application and logging the incident.", "TServer Error");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, eMonitor.Message.ToString(), EventLogEntryType.Warning, 234);
return(false);
}
// Wait a second before polling the event queue
System.Threading.Thread.Sleep(1000);
// Define the event buffer that contains data passed back from TServer
ushort numEvents2 = 0;
Csta.EventBuf_t eventBuf2 = new Csta.EventBuf_t();
ushort eventBufSize2 = (ushort)Csta.CSTA_MAX_HEAP;
try
{
int monitorDeviceConf = Csta.acsGetEventPoll(acsHandle, ref eventBuf2, ref eventBufSize2, ref privData, ref numEvents2);
}
catch (System.Exception eMonitorConf)
{
// If we can't get back a confirmation record the error and inform the user
MessageBox.Show("There was a TServer error. Closing the application and logging the incident.", "TServer Error");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, eMonitorConf.Message.ToString(), EventLogEntryType.Warning, 234);
return(false);
}
// Parse out the data elements in the event buffer...
// The event header
UInt32 numAcsHandle3 = BitConverter.ToUInt32(eventBuf2.data, 0);
ushort numEventClass3 = BitConverter.ToUInt16(eventBuf2.data, 4);
ushort numEventType3 = BitConverter.ToUInt16(eventBuf2.data, 6);
// The various elements contained in the rest of the event buffer
UInt32 numInvokeId3;
UInt32 numMonitorCrossRefId3;
ushort numCallFilter3;
byte numFeatureFilter3;
byte numAgentFilter3;
byte numMaintenanceFilter3;
UInt32 numPrivateFilter3;
// If the device monitor was successful...
if (numEventClass3 == Csta.CSTACONFIRMATION && numEventType3 == Csta.CSTA_MONITOR_CONF)
{
// Parse the elements in the event buffer
numInvokeId3 = BitConverter.ToUInt32(eventBuf2.data, 8);
numMonitorCrossRefId3 = BitConverter.ToUInt32(eventBuf2.data, 12);
numCallFilter3 = BitConverter.ToUInt16(eventBuf2.data, 16);
numFeatureFilter3 = (byte)eventBuf2.data.GetValue(18);
numAgentFilter3 = (byte)eventBuf2.data.GetValue(20);
numMaintenanceFilter3 = (byte)eventBuf2.data.GetValue(22);
numPrivateFilter3 = BitConverter.ToUInt32(eventBuf2.data, 24);
return(true);
}
else
{
string strMonitorDeviceFailed = "The device was not monitored. The Event Class code returned was " + numEventClass3 + " and the Event Type returned was " + numEventType3 + ".";
MessageBox.Show("The device was not monitored.", "Monitor Device Failed");
if (!EventLog.SourceExists(strSource))
{
EventLog.CreateEventSource(strSource, strLog);
}
EventLog.WriteEntry(strSource, strMonitorDeviceFailed, EventLogEntryType.Warning, 234);
return(false);
}
}