- Added a SICS to Hipadaba adapter

- Added a separate polling module to SICS

polldriv.c

@@ -0,0 +1,97 @@
+/**
+ * This is the sister module to sicspoll which defines the drivers for the 
+ * various modes of polling SICS objects. 
+ * 
+ * copyright: see file COPYRIGHT
+ * 
+ * Mark Koennecke, November-December 2006
+ */
+
+#include <stdlib.h>
+#include <assert.h>
+#include <sics.h>
+#include <splitter.h>
+
+#include "polldriv.h"
+#include "splitter.h"
+#include "sicshipadaba.h"
+/*================ actual driver implementation =========================*/
+static int timeDue(struct __POLLDRIV *self, time_t now, SConnection *pCon){
+    if(now > self->nextPoll){
+        return 1;
+    } else {
+        return 0;
+    }
+}
+/*------------------ HDB Driver -----------------------------------------*/
+static int pollHdb(struct __POLLDRIV *self, SConnection *pCon){
+    hdbValue old, newVal;
+    pHdb node = NULL;
+    
+    memset(&old,0,sizeof(hdbValue));
+    memset(&newVal,0,sizeof(hdbValue));
+    node = (pHdb)self->objPointer;
+    assert(node != NULL);
+    old = node->value;
+    self->nextPoll = time(NULL) + self->pollIntervall;
+    if(GetHipadabaPar(node, &newVal, pCon) == 1){
+        if(!compareHdbValue(old,newVal)){
+            UpdateHipadabaPar(node,newVal,pCon);
+        }
+        return 1;
+    } else {
+        return 0;
+    }
+}
+/*-----------------------------------------------------------------------*/
+static pPollDriv makeHdbDriver(SConnection *pCon, char *objectIdentifier,
+    int argc, char *argv[]){
+    pHdb root = NULL, node = NULL;
+    pPollDriv pNew = NULL;
+    
+    root = GetHipadabaRoot();
+    assert(root != NULL);
+    node = GetHipadabaNode(root,objectIdentifier);
+    if(node == NULL){
+        SCWrite(pCon,"ERROR: object to poll not found",eError);
+        return 0;
+    }
+    pNew = malloc(sizeof(PollDriv));
+     if(pNew == NULL){
+         return NULL;
+     }
+     memset(pNew,0,sizeof(PollDriv));
+
+    
+    pNew->objectIdentifier = strdup(objectIdentifier);
+    pNew->objPointer = node;
+    pNew->isDue = timeDue;
+    pNew->poll = pollHdb;
+
+    if(argc > 0){
+        pNew->pollIntervall = atoi(argv[0]);
+    } else {
+        pNew->pollIntervall = 10;
+    }
+    
+    return pNew;        
+}    
+/*================ external interface ====================================*/
+pPollDriv makePollDriver(SConnection *pCon, char *driver,
+    char *objectIdentifier, int argc, char *argv[]){
+    
+    strtolower(driver);
+    if(strcmp(driver,"hdb") == 0) {
+        return makeHdbDriver(pCon,objectIdentifier, argc, argv); 
+    } else {
+        SCWrite(pCon,"ERROR: polling driver type unknown",eError);
+        return NULL;
+    }      
+}
+/*------------------------------------------------------------------------*/
+void deletePollDriv(pPollDriv self){
+    if(self->objectIdentifier != NULL){
+        free(self->objectIdentifier);
+    }
+    free(self);
+}