dopplung rm

uebung4-1/Makefile

-# This makefile compiles all C files in the same directory and produces a single
-# executable named solution
-CC = gcc
-CFLAGS = -std=gnu17 -Wall -Wextra -pedantic -O2 -g
-CPPFLAGS = -MMD
-LD_FLAGS = -pthread -lm
-
-BIN_NAME = solution
-SRC_FILES = $(wildcard *.c)
-OBJ_FILES = $(SRC_FILES:.c=.o) 
-DEP_FILES = $(wildcard *.d)
-
-run: $(BIN_NAME)
-	./$(BIN_NAME)
-
--include $(DEP_FILES)
-
-$(BIN_NAME): $(OBJ_FILES)
-	$(CC) $(LD_FLAGS) $(OBJ_FILES) -o $@
-
-%.o: %.c
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
-
-clean:
-	@rm -v *.o *.d
-	@rm -v ./$(BIN_NAME)
-
-.PHONY: run clean
-

uebung4-1/main.c

-#include <stdio.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include <unistd.h>
-
-#define philo_NUM 5
-
-pthread_mutex_t locks[philo_NUM]; //jede Gabel kriegt ihr eigenes Lock
-pthread_t philosophen[philo_NUM];
-
-void* philosopher(void* threadid) {
-    int id = *(int*)threadid; //hier habe ich mir KI hilfe holen lassen. (long) tid hat irgendwie nicht funktioniert
-    int i = 0;
-
-    for (i=0;i <= 10000; i++) {
-        printf("Philosoph %d denkt nach.\n", id);
-        usleep(100);  //Denkzeit
-
-        printf("Philosoph %d hat Hunger.\n", id);
-
-        pthread_mutex_lock(&locks[id]);  //linke Gabel nehmen
-        pthread_mutex_lock(&locks[(id + 1) % philo_NUM]);  //rechte Gabel nehmen
-
-        printf("Philosoph %d isst.\n", id);
-        usleep(100);  //Essenszeit
-
-        pthread_mutex_unlock(&locks[(id + 1) % philo_NUM]); //rechte Gabel zurücklegen
-        pthread_mutex_unlock(&locks[id]); //linke Gabel zurücklegen
-
-    }
-    pthread_exit(NULL);
-}
-
-int main() {
-    int ids[philo_NUM];
-
-
-    for (int i = 0; i < philo_NUM; i++) {
-        pthread_mutex_init(&locks[i], NULL);  // Initialisierung von locks anstelle von forks
-    }
-
-    for (int i = 0; i < philo_NUM; i++) { //Threads erstellen
-        ids[i] = i;
-        pthread_create(&philosophen[i], NULL, philosopher, &ids[i]);
-    }
-
-    for (int i = 0; i < philo_NUM; i++) {
-        pthread_join(philosophen[i], NULL);
-    }
-
-    pthread_exit(NULL);
-}

uebung4-3/Makefile

-# This makefile compiles all C files in the same directory and produces a single
-# executable named solution
-CC = gcc
-CFLAGS = -std=gnu17 -Wall -Wextra -pedantic -O2 -g
-CPPFLAGS = -MMD
-LD_FLAGS = -pthread -lm
-
-BIN_NAME = solution
-SRC_FILES = $(wildcard *.c)
-OBJ_FILES = $(SRC_FILES:.c=.o) 
-DEP_FILES = $(wildcard *.d)
-
-run: $(BIN_NAME)
-	./$(BIN_NAME)
-
--include $(DEP_FILES)
-
-$(BIN_NAME): $(OBJ_FILES)
-	$(CC) $(LD_FLAGS) $(OBJ_FILES) -o $@
-
-%.o: %.c
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
-
-clean:
-	@rm -v *.o *.d
-	@rm -v ./$(BIN_NAME)
-
-.PHONY: run clean
-

uebung4-3/main.c

-#include <pthread.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#define philo_NUM 5
-
-pthread_mutex_t locks[philo_NUM]; //jede Gabel kriegt ihr eigenes Lock
-
-void* philosoph(void* theadid) {
-    int id = *(int*)theadid;
-
-    for (int i = 0; i <= 10000; i++) {
-        printf("Philosoph %d denkt nach.\n", id);
-        usleep(100); // Denkzeit
-
-        printf("Philosoph %d hat Hunger.\n", id);
-
-        if (id % 2 == 0) { //alle gerade Philosophen
-            // zuerst Linke dann rechte Gabel
-            pthread_mutex_lock(&locks[id]);
-            pthread_mutex_lock(&locks[(id + 1) % philo_NUM]);
-        } else { //alle ungerade Philosophen
-            // zuerst Rechte dann linke Gabel
-            pthread_mutex_lock(&locks[(id + 1) % philo_NUM]);
-            pthread_mutex_lock(&locks[id]);
-        }
-
-        printf("Philosoph %d isst.\n", id);
-        usleep(100); // Essenszeit
-
-        // Gabeln zurücklegen
-        pthread_mutex_unlock(&locks[(id + 1) % philo_NUM]);
-        pthread_mutex_unlock(&locks[id]);
-    }
-
-    pthread_exit(NULL);
-}
-
-
-int main() {
-    pthread_t threads[philo_NUM];
-    int philosoph_nummern[philo_NUM];
-
-    for (int i = 0; i < philo_NUM; i++) { //Mutexes initialisieren
-        pthread_mutex_init(&locks[i], NULL);
-    }
-
-    for (int i = 0; i < philo_NUM; i++) { //Threads erstellen
-        philosoph_nummern[i] = i;
-        pthread_create(&threads[i], NULL, philosoph, &philosoph_nummern[i]);
-    }
-
-    for (int i = 0; i < philo_NUM; i++) {
-        pthread_join(threads[i], NULL);
-    }
-
-    pthread_exit(NULL);
-}