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BufferT.c
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BufferT.c
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//
// Created by Addo Dennis on 04/01/2017.
//
#include <stdio.h>
#include "BufferT.h"
int main(int argc, char *argv[]) {
char bf[20];
Rbuffer * testBuffer = NULL;
int menue_eingabe;
Rbuffer datV;
buffer_info(testBuffer, "Initialisiert");
do
{
printf("\n=====================================\n");
printf("Welche Aktion wollen Sie durchfuehren?\n");
printf("1 ... Messwert hinzufuegen\n");
printf("2 ... Messwert suchen\n");
printf("3 ... Messwert Löschen\n");
printf("0 ... Programmende\n");
printf("=====================================\n");
printf("Ihre Wahl? ");
scanf("%i", &menue_eingabe);
printf("\n");
switch (menue_eingabe)
{
case 0:
_logdd(MAGNENTAP,"Das Programm wird beendet ...");
break;
case 1:
printf(" -----------------------------------------\n");
printf("| MESSWERT HINFUEGEN |\n");
printf(" -----------------------------------------\n");
info("Geben Sie den Namen des Messgeraetes ein: ");
scanf("%s",bf);
datV.name = strcpy(malloc(sizeof(char) * strlen(bf)+ 1),bf);
info("Geben Sie den Messwert ein: ");
scanf("%lf",&datV.meswert);
info("Geben Sie das Datum ein (dd.mm.yyyy): \n");
scanf("%d.%d.%d",&datV.ddate.day,&datV.ddate.month,&datV.ddate.year);
if (add(&testBuffer,datV) == 0) {
info("Der Eintrag wurde hinzugefuegt");
}else {
warn_msg("!!! Der Eintrag konnte nicht hinzugefuegt werden !!!");
}
buffer_info(testBuffer,"Hinzufuegen - Danach");
free(datV.name), datV.name = NULL;
//bf[12] = '\0';
break;
case 2:
printf(" -----------------------------------------\n");
printf("| MESSWERT SUCHEN |\n");
printf(" -----------------------------------------\n");
info("Geben Sie das gewuenschte Datum ein (dd.mm.yyyy): ");
scanf("%d.%d.%d",&datV.ddate.day,&datV.ddate.month,&datV.ddate.year);
double w = find(&testBuffer, datV.ddate);
if (w != -1)
printf("Ein Eintrag mit dem Wert %.2f wurde gefunden\n",w);
else
warn_msg("!!! Es wurde kein entsprechender Eintrag gefunden !!!");
break;
case 3:
printf(" -----------------------------------------\n");
printf("| MESSWERT LÖSCHEN |\n");
printf(" -----------------------------------------\n");
printf("Geben Sie das gewuenschte Datum ein (dd.mm.yyyy): ");
scanf("%d.%d.%d",&datV.ddate.day,&datV.ddate.month,&datV.ddate.year);
// double we = find(&testBuffer, datV.ddate);
int we = delete(&testBuffer,&testBuffer, datV.ddate);
if (we == 0)
printf("Ein Eintrag wurde gelöscht\n");
else
printf("!!! Es wurde kein entsprechender Eintrag gelöscht !!!\n");
buffer_info(testBuffer,"NACH->>Löschenfunktion");
break;
default:
error_msg("Ungueltige Eingabe!");
}
} while (menue_eingabe != 0);
cleanup(&testBuffer);
return 0;
}
void init(Rbuffer **ring) {
Rbuffer *pnode = malloc(sizeof(struct _Buffer));
if(!pnode) return;
pnode->meswert = 0;
pnode->name = NULL;
pnode->ddate.day = pnode->ddate.month = pnode->ddate.year = 0;
pnode->name = NULL;
*ring = pnode;
}
int add(Rbuffer **buffer, Rbuffer data) {
if (*buffer == NULL) {
*buffer = NULL;
init(&(*buffer));
(*buffer)->meswert = data.meswert;
(*buffer)->ddate = data.ddate;
(*buffer)->name = strcpy(malloc(sizeof(strlen(data.name) + 1)), data.name);
(*buffer)->next = *buffer;
} else if ((*buffer)->next == (*buffer)) {
Datum bd = (*buffer)->ddate;
if ((bd.year <= data.ddate.year) && (bd.month <= data.ddate.month)) {
Rbuffer *new = NULL; init(&new);
new->meswert = data.meswert;
new->ddate = data.ddate;
new->name = strcpy(malloc(sizeof(strlen(data.name) + 1)), data.name);
(*buffer)->next = new;
new->next = *buffer;
} else{
return 1;
}
} else {
return add_helper(&(*buffer), &(*buffer), data);
}
return 0;
}
int add_helper(Rbuffer **buffer, Rbuffer **head, Rbuffer d) {
if ((*buffer)->next == (*head)) {
Datum bd = (*buffer)->ddate;
if ((bd.year <= d.ddate.year) && (bd.month <= d.ddate.month)) {
Rbuffer *new = NULL; init(&new);
new->meswert = d.meswert;
new->ddate = d.ddate;
new->name = strcpy(malloc(sizeof(strlen(d.name) + 1)), d.name);
(*buffer)->next = new;
new->next = *head;
} else{
return 1;
}
} else {
return add_helper(&(*buffer)->next, &(*head), d);
}
return 0;
}
double find(Rbuffer **buffer, Datum date) {
if ((*buffer)->ddate.day == date.day &&
(*buffer)->ddate.month == date.month
&& (*buffer)->ddate.year == date.year) {
return (*buffer)->meswert;
} else {
if ((*buffer) == NULL) return -1;
else return find(&(*buffer)->next, date);
}
}
int delete(Rbuffer **buffer, Rbuffer **head, Datum date) {
if ((*buffer)->ddate.year == date.year &&
(*buffer)->ddate.month == date.month
&& (*buffer)->ddate.day == date.day) {
if ((*buffer)->next == *head) {
Rbuffer *cr_node = (*buffer)->next;
//*buffer = *head;
free(*buffer);
*buffer = cr_node ;
} else if ((*buffer)->next != *head) {
Rbuffer *cr_node = (*buffer)->next;
free(*buffer);
*buffer = cr_node;
}
return 0;
} if((*buffer)->next == *head){
return 1;
}
else {
return delete(&(*buffer)->next, &(*head), date);
}
}
void buffer_info(Rbuffer *buffer, char *desc) {
int i = 0;
Rbuffer *tmp = buffer;
info("=== RINGBUFFER ===");
info("=== %s\n", desc);
print("=== Head @ ");
char next[20];
sprintf(next,"%p",buffer);
_logdd(CYAN,next);
//printf("=== Head @ %p ===\n", buffer);
if (buffer == NULL) {
return;
}
do {
printf("Element %d\n", i++);
printf(" Name: %s\n", tmp->name);
printf(" Wert: %.2f\n", tmp->meswert);
printf(" Datum: %02d.%02d.%04d\n", tmp->ddate.day, tmp->ddate.month, tmp->ddate.year);
printf(" Adresse: %p\n", tmp);
printf(" Next: ");
sprintf(next,"%p",tmp->next);
_logdd(MAGNENTAP,next);
//printf(" Next: %p\n", tmp->next);
tmp = tmp->next;
} while (tmp != buffer);
printf("\n");
return;
}
void cleanup(Rbuffer **r) {
if(*r == NULL) return;
Rbuffer *p = (*r), *tem;
while(p->next != *r){
tem = p;
p = p->next;
free(tem); tem = NULL;
}
}