Header Datei runterladen

#include <stdio.h>
#include <stdlib.h>           
#include <pthread.h>

#define MAX 10000


pthread_t trd1;										
pthread_t trd2;											

void* mein_thread(void* arg)
{
	

	if( pthread_equal(pthread_self(), trd1) != 0 )				 		
	{
		for(long i=0; i < MAX/2; i++)							
		  printf("Meine Thread ID: %d,   derzeitiger Zählerstand: %5ld", trd1, i); 
	}
	else if( pthread_equal(pthread_self(), trd2) != 0 )
	{
		for(long j=0; j < MAX/2; j++)
		  printf("Meine Thread ID: %d,   derzeitiger Zählerstand: %5ld", trd2, j);
	}
	else
	{
		 fprintf(stderr, "Error");	
		 exit(1);
	}
	
	
	return NULL;
}

int main()
{
 	pthread_create(&trd1, NULL, &mein_thread, NULL);					
	pthread_create(&trd2, NULL, &mein_thread, NULL);

	pthread_exit(NULL);								

	return 0;
}

gcc -c A3Nr2AKTUELL.c
gcc -o prog A3Nr2AKTUELL.o
A3Nr2AKTUELL.o: In function `main':
A3Nr2AKTUELL.c:(.text+0x109): undefined reference to `pthread_create'
A3Nr2AKTUELL.c:(.text+0x122): undefined reference to `pthread_create'
collect2: ld returned 1 exit status
make: *** [prog] Fehler 1

gcc A3Nr2AKTUELL.c -lpthread -std=c99

pj@linux-7z48:~/bin/KMS2> ls
A3Nr2AKTUELL.c  A3Nr2AKTUELL.o  a.out  BASH  BASH~  makefile  makefile~
pj@linux-7z48:~/bin/KMS2> gcc A3Nr2AKTUELL.c -lpthread -std=c99
pj@linux-7z48:~/bin/KMS2> make
gcc -o prog A3Nr2AKTUELL.o
A3Nr2AKTUELL.o: In function `main':
A3Nr2AKTUELL.c:(.text+0x109): undefined reference to `pthread_create'
A3Nr2AKTUELL.c:(.text+0x122): undefined reference to `pthread_create'
collect2: ld returned 1 exit status
make: *** [prog] Fehler 1
pj@linux-7z48:~/bin/KMS2>

pj@linux-7z48:~/bin/KMS2> ls
A3Nr2AKTUELL.c  A3Nr2AKTUELL.o  a.out  BASH  BASH~  makefile  makefile~
pj@linux-7z48:~/bin/KMS2> Compile and link with -pthread
If 'Compile' is not a typo you can use command-not-found to lookup the package that contains it, like this:
    cnf Compile
pj@linux-7z48:~/bin/KMS2> cnd Compile
If 'cnd' is not a typo you can use command-not-found to lookup the package that contains it, like this:
    cnf cnd
pj@linux-7z48:~/bin/KMS2>

tooltime@athlon:~/test/build/Forum> ls
test.c
tooltime@athlon:~/test/build/Forum> gcc -c -std=c99 -pthread test.c
tooltime@athlon:~/test/build/Forum> gcc -pthread -o test test.o
tooltime@athlon:~/test/build/Forum> ls
test  test.c  test.o
tooltime@athlon:~/test/build/Forum>

pj@linux-7z48:~/bin/KMS2> ls
A3Nr2AKTUELL  A3Nr2AKTUELL.c  A3Nr2AKTUELL.o  a.out  BASH  BASH~  makefile  makefile~
pj@linux-7z48:~/bin/KMS2> gcc -c -std=c99 -pthread A3Nr2AKTUELL.c
pj@linux-7z48:~/bin/KMS2> make
gcc -o prog A3Nr2AKTUELL.o
A3Nr2AKTUELL.o: In function `main':
A3Nr2AKTUELL.c:(.text+0x109): undefined reference to `pthread_create'
A3Nr2AKTUELL.c:(.text+0x122): undefined reference to `pthread_create'
collect2: ld returned 1 exit status
make: *** [prog] Fehler 1
pj@linux-7z48:~/bin/KMS2>

prog: A3Nr2AKTUELL.o 
	gcc -o prog A3Nr2AKTUELL.o 

A3Nr2AKTUELL.o: A3Nr2AKTUELL.c 
		gcc -c A3Nr2AKTUELL.c

gcc -c std=c99

gcc -std=c99

gcc --version
gcc (SUSE Linux) 4.4.1 [gcc-4_4-branch revision 150839]
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

prog: A3Nr2AKTUELL.o 
   gcc -pthread -o prog A3Nr2AKTUELL.o 

A3Nr2AKTUELL.o: A3Nr2AKTUELL.c 
   gcc -c -std=c99 -pthread A3Nr2AKTUELL.c

#!/bin/bash

cd KMS1
echo "A3Nr1AKTUELL"

for(( I=1; $I <= 5; I++))
do
    echo ""
    echo "Ausführung Nr. $I" 
    ./prog
done

echo "Ausführung Ende (A3Nr1AKTUELL)" 
echo ""

##### zweiter abschnitt ####

cd ..
cd KMS2
echo "A3Nr2AKTUELL"

for(( I=1; $I <= 5; I++))
do
    echo ""
    echo "Ausführung Nr. $I" 
    ./prog
done

echo "Ausführung Ende (A3Nr2AKTUELL)" 
echo ""