EdmiError edmiRemoteOpenDatabase (SdaiServerContext   serverContextId,
                                  SdaiString          location, 
                                  SdaiString          databaseName, 
                                  SdaiString          password);

Opens a remote EDMdatabase from a thin EDMclient. The EDMdatabase will be attached to the EDMserver specified in the given server context. An EDMdatabase may not be accessed until it is opened by a call to this function. In a single-user system the EDMserver is embedded in the EDMinterface. In a multi-user system the EDMserver and the EDMclients will be running as separate processes, possibly on different systems. The EDMserver may not handle more than one EDMdatabase at the time. Any open EDMdatabase must therefore be closed before opening another. This operation is protected with the EDMdatabase password. This password is defined when the EDMdatabase is created.

Arguments

Type	Name	Comment
SdaiServerContext	serverContextId	Context identification, from edmiDefineServerContext
SdaiString	location	The full path to the directory on the remote file system where the EDMdatabase is located. The directory delimiter is '/' on UNIX platforms and '\' on Windows platforms.
SdaiString	databaseName	The name of the EDMdatabase to open. EDMdatabase names are case sensitive on UNIX platforms and case insensitive on Windows platforms.
SdaiString	password	The password for the EDMdatabase. The password is defined by the edmiCreateDatabase function.

Return Value

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Options

Example

int i;
 EdmiError rstat;
 SdaiServerContext suContext;
 tEdmiWhoIsOnServer *pWhoIsOn;
 tEdmiConnection *pConnect;
 SdaiInteger nConnect;
  
 /* Define Remote Server Context
 for the superuser */ 
 rstat = edmiDefineServerContext("SuperUserContext",
 "superuser", NULL, "xfx56kl9",
 "TCP", "9090", "MyServerHost",
 NULL, NULL, NULL, NULL, NULL, &suContext); 
  
 /* Set the system unavailable */
 rstat = edmiRemoteSetUnavailable(suContext,
 "System unavailable due to maintenance",  
 NULL, NULL); 
  
 rstat = edmiRemoteWhoIsOn(suContext, &nConnect, &pWhoIsOn, NULL);
 pConnect = pWhoIsOn->connections;
  
 /* Kill all connections except the
 EDMapplicationServer processes */ 
 for (i=0;i<nConnect;i++) {
 SdaiString _hostName, _clientName; 
 rstat = edmiRemoteGetClientNames(suContext,  
 pConnect->clientId, &_hostName,  
 &_clientName, NULL); 
 if (!strstr(_clientName, "EDMapplicationServer-")) { 
 rstat = edmiRemoteTerminateClient(suContext, NULL,  
 pConnect->clientId, FORCE_TO_TERMINATE, NULL); 
 } 
 ++pConnect; 
 }
  
 /* Close the database */
 rstat = edmiRemoteCloseDatabase(suContext, "db546tyz", NULL);
  
 /* Perform system maintenance here */
  
 /* Reopen the database */
 rstat = edmiRemoteOpenDatabase(suContext, "x:/mypro/db",
 "mydb", "db546tyz"); 
  
 /* Set the system available for
 connections from EDMclients */ 
 rstat = edmiRemoteSetAvailable(suContext, NULL, NULL);
 . . .

Arguments

Return Value

Options

Example

See also

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