edmiRemoteVersion
- Former user (Deleted)
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. |
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);
}
. . .
See also
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