EPSIAE » eneraptor

/*

 * hciChanged.h

 *

 * 2011, Aleksander Besir (alex.besir@gmail.com)

 *

 */

 #ifndef _ENERAPTOR_HCI_HCICHANGED

 #define _ENERAPTOR_HCI_HCICHANGED

 // hciChanged value codes

 #define HCI_CHANGED_RESET  0 // No changes made.

                              // Logic has to reset hciChanged to this value

                              // whenever it reads it

 #define HCI_CHANGED_SCENARIOS -1 // HCI has changed scenariotree.xml contents

 #define HCI_CHANGED_DEVICES -2 // HCI has changed devicetree.xml contents

 #endif

 #define HCI_COMM_REQUEST_BUFFER_SIZE  1048576 // Bufer size in bytes

 #define HCI_COMM_RESPONSE_BUFFER_SIZE  1048576 // Bufer size in bytes

 #define HCI_COMM_LINE_BUFFER_SIZE  1048576 // Bufer size in bytes

#include "hciChanged.h"

// Global variables from startup/main.c

    extern pthread_mutex_t mtx;

    extern int hciChanged;

	char *lineBuffer = malloc(HCI_COMM_LINE_BUFFER_SIZE * sizeof(char));

	if(lineBuffer == NULL) {

		printf("HCI comm error: Cannot allocate buffer.\n");

		return HCI_COMM_ERR_BUF_ALOC_FAIL;

	}

        memset(responseBuffer,'\0',HCI_COMM_RESPONSE_BUFFER_SIZE);

        memset(requestBuffer,'\0',HCI_COMM_REQUEST_BUFFER_SIZE);

        memset(lineBuffer,'\0',HCI_COMM_LINE_BUFFER_SIZE);

        responseLength = 0;

            printf("[hci_comm_listener] getConfig request\n");

            printf("[hci_comm_listener] setConfig request\n");

            printf("[hci_comm_listener] getScenarios request\n");

            FILE *fp;

            if(fp = fopen("./scenariotree.xml", "r")) {

                printf("[hci_comm_listener] File opened\n");

                strcat(responseBuffer,"<logic-response type=\"getScenarios\">");

                while(fgets(lineBuffer,HCI_COMM_LINE_BUFFER_SIZE,fp)) {

                    strcat(responseBuffer,lineBuffer);

                }

                strcat(responseBuffer,"</logic-response>");

                responseLength = strlen(responseBuffer);

                fclose(fp);

            } else {

                 printf("[hci_comm_listener] Error: Can't open file scenariotree.xml\n");

                 strcpy(responseBuffer,"<logic-response type=\"error\">Could not read file!</logic-response>");

                 responseLength = strlen(responseBuffer);

            }

            printf("[hci_comm_listener] setScenarios request\n");

            // Prepare new content for scenariotree.xml

            strncpy(lineBuffer,requestBuffer+54,strlen(requestBuffer)-(54+14+2));

            strcpy(requestBuffer,"<?xml version=\"1.0\"?>");

            strcat(requestBuffer,lineBuffer);

            FILE *fp;

            if(fp = fopen("./scenariotree.xml", "w")) {

                fputs(requestBuffer,fp);

                fclose(fp);

                pthread_mutex_lock(&mtx);

                hciChanged = HCI_CHANGED_SCENARIOS;

                pthread_mutex_unlock(&mtx);

                strcpy(responseBuffer,"<logic-response type=\"setScenarios\"></logic-response>");

                responseLength = strlen(responseBuffer);

            } else {

                printf("[hci_comm_listener] Error: Can't open file scenariotree.xml for writing\n");

                strcpy(responseBuffer,"<logic-response type=\"error\">Could not write file!</logic-response>");

                responseLength = strlen(responseBuffer);

            }

            printf("[hci_comm_listener] executeAction request\n");

#include "../hci_comm/hciChanged.h"

pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;

// Global variable to check, if HCI made any changes that need

// to be updated by the logic.

// Changing this variable's value must be done using the

// mutex mtx declared before.

// To change variables value you should do this:

//    pthread_mutex_lock(&mtx);

//    hciChanged = 0;

//    pthread_mutex_unlock(&mtx);

// The meaning of hciChanged possible values is in hci_comm/hciChanged.h.

// HCI should always reset hciChanged value to HCI_CHANGED_RESET after

// checking it's value.

// To use mtx and hciChanged variables in other .c files, write

//    extern int hciChanged;

//    extern pthread_mutex_t mtx;

// on top of the class.

int hciChanged = HCI_CHANGED_RESET;

		<Unit filename="src/hci_comm/hciChanged.h" />