edmiRemoteVersion

EdmiError edmiRemoteVersion(SdaiServerContext serverContextId,
                             SdaiClientId      clientId,
                             SdaiInteger       *serverVersion,
                             SdaiInteger       *localEdmiVersion,
                             SdaiString        *serverVersionText,
                             SdaiString        *localEdmiVersionText,
                             SdaiInvocationId  *edmiInvocationId);

Reads the version info of an EDMserver or an EDMapplicationServer process from a thin EDMclient. Two versioned modules constitute the EDMserver and the EDMapplication server; the server application it self, and the library comprising all the EDMInterface/C API functions. For a thin EDMclient to work properly with a Server Room they must be based on a compatible version of the EDMInteface . EDMapplicationServer processes are basically thick EDMclients that are connected to the EDMserver They are identified by their clientIds which may be determined by a call to the edmiRemoteWhoIsOn function (see the example below). If the clientId argument is set to zero, this function will return version info for the EDMserver A version is identified by an integer number and a corresponding textual sting. The version info returned from this function might be;

Argument	Return Value
serverVersion	20050308
localEdmiVersion	20050308
serverVersionText	EXPRESS Data Manager Server Version 4.7.041b Dec 15 2005
localEdmiVersionText	EXPRESS Data Manager fat client system - Version 4.7.041b Dec 15 2005

Arguments

Type	Name	Comment
SdaiServerContext	serverContextId	Context identification, from edmiDefineServerContext
SdaiClientId	clientId	The clientId that identifies the EDMapplicationServer process for which to return version info. If this argument is zero, the version info for the _EDMserver_ will be returned
SdaiInteger	serverVersion	A variable that will receive an integer number that identifies the version of the EDMserver{_}_ or the EDMapplicationServer.
SdaiInteger	localEdmiVersion	A variable that will receive an integer number that identifies the version of the EDMInterface{_}_ library used by the EDMserver{_}_ or the EDMapplicationServer.
SdaiString	serverVersionText	A variable that will receive a textual string that identifies the version of the EDMserver{_}_ or the EDMapplicationServer.
SdaiString	localEdmiVersionText	A variable that will receive a textual string that identifies the version of the EDMInterface library used by the EDMserver or the EDMapplicationServer.
SdaiInvocationId	edmiInvocationId	Currently not used.

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Options

Example

 /* Check that all the EDMapplicationServers
 use the same version of the EDMInterface 
 as does the EDMserver */ 
 int i;
 EdmiError rstat;
 SdaiServerContext suContext;
 tEdmiWhoIsOnServer *pWhoIsOn;
 tEdmiConnection *connect;
 SdaiInteger nConnect, nAppServer;
 SdaiInteger versionId, edmiVersionId;
 SdaiString version, edmiVersion;
 SdaiString hostName, clientName;
  
 /* Define Remote Server Context
 for the superuser */ 
 rstat = edmiDefineServerContext("SuperUserContext",
 "superuser", NULL, "xfx56kl9",
 "TCP", "9090", "MyServerHost",
 NULL, NULL, NULL, NULL, NULL, &suContext); 
  
 /* Get the version info for the EDMserver */
 rstat = edmiRemoteVersion(suContext, 0,
 &versionId, &edmiVersionId,  
 &version, &edmiVersion, NULL); 
  
 /* We do not need version strings for this */
 edmiFree(version);
 edmiFree(edmiVersion);
  
 /* Find all connected thick EDMclients */
 rstat = edmiRemoteWhoIsOn(suContext, &nConnect, &pWhoIsOn, NULL);
 connect = pWhoIsOn->connections;
 nAppServer = 0;
 for (i=0;i<nConnect;i++) {
 rstat = edmiRemoteGetClientNames(suContext, connect->clientId,
 &hostName, &clientName, NULL); 
 if (strstr(clientName, "EDMapplicationServer-") && 
 strstr(clientName, " Main Client") ) { 
 SdaiInteger _edmiVersionId; 
  
 /* Get the version info for 
 the EDMapplicationServer */ 
 rstat = edmiRemoteVersion(suContext, connect->clientId,  
 &versionId, &_edmiVersionId,  
 &version, &edmiVersion, NULL); 
  
 /* We do not need version strings for this */ 
 edmiFree(version); 
 edmiFree(edmiVersion); 
  
 /* Compare the EDMInterface library versions */ 
 if (edmiVersionId != _edmiVersionId) { 
 printf("\nWARNING: The EDMapplicationServer"); 
 printf(" with client Id %d", connect->clientId); 
 printf(" running at host %s", hostName); 
 printf(" uses an EDMInterface library with a"); 
 printf(" version number (%d) that does", _edmiVersionId); 
 printf(" not match that of the EDMserver (%d)", edmiVersionId); 
 } 
 } 
 edmiFree(hostName); 
 edmiFree(clientName); 
 }
 . . .

EDMsix

edmiRemoteVersion

Arguments

Options

Example

See also

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