int getDeadband

(

IssueStruct *

issueParam

)

Definition at line 2586 of file feeserver.c.

References createLogMessage(), findIntItem(), findItem(), Memory::free(), Memory::malloc(), and sprintf().

Referenced by command_handler().

                                         {
        char* itemName = 0;
        int nameLength = 0;
        ItemNode* node = 0;
        IntItemNode* intNode = 0;
        float currentDeadband = 0;
        char msg[120];

        if ((*issueParam).size <= 0) {
                (*issueParam).size = 0;
                createLogMessage(MSG_DEBUG,
                                "FeeServer command for getting dead band contained invalid parameter.",
                                0);
                return FEE_INVALID_PARAM;
        }

        nameLength = (*issueParam).size;
        itemName = (char*) malloc(nameLength + 1);
        if (itemName == 0) {
                (*issueParam).size = 0;
                return FEE_INSUFFICIENT_MEMORY;
        }

        memcpy(itemName, (*issueParam).command, nameLength);
        itemName[nameLength] = 0;

        // search wanted itemNode
        node = findItem(itemName);
        if (node == 0) {
                //check in IntItemList
                intNode = findIntItem(itemName);
        }
        if ((node == 0) && (intNode == 0)) {
                // message is NOT sent in findItem() or findIntItem()
                msg[sprintf(msg, "Item %s not found in list.", itemName)] = 0;
                createLogMessage(MSG_WARNING, msg, 0);
#               ifdef __DEBUG
                printf("Item %s not found in list.\n", itemName);
                fflush(stdout);
#               endif

                free(itemName);
                (*issueParam).size = 0;
                createLogMessage(MSG_DEBUG,
                                "FeeServer command for getting dead band contained invalid parameter.",
                                0);
                return FEE_INVALID_PARAM;
        } else {
                (*issueParam).result = (char*) malloc(sizeof(float) + nameLength);
                if ((*issueParam).result == 0) {
                        (*issueParam).size = 0;
                        return FEE_INSUFFICIENT_MEMORY;
                }

                // copy current deadband value to ACK result
                if (node != 0) {
                        currentDeadband = node->threshold * 2.0; // compute deadband
                } else {
                        currentDeadband = intNode->threshold * 2.0; // compute deadband
                }

                memcpy((*issueParam).result, &currentDeadband, sizeof(float));
                memcpy((*issueParam).result + sizeof(float), itemName, nameLength);
                (*issueParam).size = sizeof(float) + nameLength;
#               ifdef __DEBUG
                printf("Current deadband on item %s is %f.\n", itemName, currentDeadband);
                fflush(stdout);
#               endif
                msg[sprintf(msg, "Current deadband for item %s is %f.", itemName,
                                currentDeadband)] = 0;
                createLogMessage(MSG_DEBUG, msg, 0);
        }
        free(itemName);
        return FEE_OK;
}

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