Initial revision

interface.c

@@ -0,0 +1,117 @@
+/*--------------------------------------------------------------------------
+			I N T E R F A C E
+
+ 
+       Just a few utility function for creating interfaces.
+       
+       Mark Koennecke, June 1997
+ 
+       Copyright:
+
+       Labor fuer Neutronenstreuung
+       Paul Scherrer Institut
+       CH-5423 Villigen-PSI
+
+
+      The authors hereby grant permission to use, copy, modify, distribute,
+      and license this software and its documentation for any purpose, provided
+      that existing copyright notices are retained in all copies and that this
+      notice is included verbatim in any distributions. No written agreement,
+      license, or royalty fee is required for any of the authorized uses.
+      Modifications to this software may be copyrighted by their authors
+      and need not follow the licensing terms described here, provided that
+      the new terms are clearly indicated on the first page of each file where
+      they apply.
+
+      IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
+      FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+      ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
+      DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+      POSSIBILITY OF SUCH DAMAGE.
+
+      THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
+      INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+      FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
+      IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
+      NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
+      MODIFICATIONS.
+----------------------------------------------------------------------------*/
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "fortify.h"
+#include "conman.h"
+#include "obdes.h"
+#include "interface.h"
+
+/*-------------------------------------------------------------------------*/
+  pIDrivable CreateDrivableInterface(void)
+  {
+    pIDrivable pRes = NULL;
+    
+    pRes = (pIDrivable)malloc(sizeof(IDrivable));
+    if(!pRes)
+    {
+      return NULL;
+    }
+    memset(pRes,0,sizeof(IDrivable));
+    pRes->ID = DRIVEID;
+    return pRes;
+  }
+/*-------------------------------------------------------------------------*/
+  pICountable CreateCountableInterface(void)
+  {
+    pICountable pRes = NULL;
+    
+    pRes = (pICountable)malloc(sizeof(ICountable));
+    if(!pRes)
+    {
+      return NULL;
+    }
+    memset(pRes,0,sizeof(ICountable));
+    pRes->ID = COUNTID;
+    return pRes;
+  }
+
+/*---------------------------------------------------------------------------*/
+  pEVInterface CreateEVInterface(void)
+  {
+    pEVInterface pRes = NULL;
+    
+    pRes = (pEVInterface)malloc(sizeof(EVInterface));
+    if(!pRes)
+    {
+      return NULL;
+    }
+    memset(pRes,0,sizeof(EVInterface));
+    pRes->iID = ENVIRINTERFACE;
+    return pRes;
+  }
+/*--------------------------------------------------------------------------*/
+  static void *FindInterface(void *pObject, int iID)
+  {
+     pDummy pDum = NULL;
+     
+     pDum = (pDummy)pObject;
+     if(!pDum)
+     {
+       return NULL;
+     }
+     if(!pDum->pDescriptor)
+     {
+       return NULL;
+     }
+     
+     return pDum->pDescriptor->GetInterface(pDum,iID);
+  }
+/*--------------------------------------------------------------------------*/
+  pIDrivable GetDrivableInterface(void *pObject)
+  {
+      return (pIDrivable)FindInterface(pObject,DRIVEID);
+  }  
+/*--------------------------------------------------------------------------*/
+  pICountable GetCountableInterface(void *pObject)
+  {
+      return (pICountable)FindInterface(pObject,COUNTID);
+  } 
+