P09 lab code added

P09_Prozesse_und_Threads/Prozesse_und_Threads/Aufgabe03/ProcA3.c

@@ -0,0 +1,31 @@
+//***************************************************************************
+// File:             ProcA4.c
+// Original Author:  M. Thaler (Modul BSY)
+//***************************************************************************
+
+//***************************************************************************
+// system includes
+//***************************************************************************
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+
+//***************************************************************************
+// Function: main(), parameter: none
+//***************************************************************************
+
+int main(void) {
+    fork();
+    fork();
+    fork();
+    fork();
+    printf("PID: %d\t PPID: %d\n", getpid(), getppid());
+    sleep(10);  // keep processes in system to display their "stammbaum"
+    exit(0);
+}
+
+//***************************************************************************

P09_Prozesse_und_Threads/Prozesse_und_Threads/Aufgabe03/makefile

@@ -0,0 +1,27 @@
+# *************************************************************
+# Original Autor:  M. Thaler (Modul BSY)
+# *************************************************************
+
+CMP=        gcc
+CMPFLAGS=   -Wall
+LDFLAGS=
+EXENAMES=   ProcA3.e
+FNAME=      ProcA3
+LIBNAME=
+
+$(EXENAMES): $(FNAME).o
+	$(CMP) $(FNAME).o $(LIBNAME) $(LDFLAGS) -o $@
+
+.c.o:
+	$(CMP) -c $(CMPFLAGS) $<
+
+.cc.o:
+	$(CMP) -c $(CMPFLAGS) $<
+
+clean:
+	rm -f *.o $(EXENAMES)
+
+all:
+	@make clean
+	@make
+