Hi,
this is following up on an installation of Alex's Xenomai tree on
Ubuntu 9.04 running the 2.6.29.5 kernel. While we managed to talk to
the NI data acquisition board we have with this tree, we suddenly
discovered that some of our other software doesn't work anymore, in
particular threads. Below is a tiny program to run a thread, and the
compile statement we use. The thread never starts running. Does
anybody know what is going wrong here?
Thanks a lot for any hint!
Best wishes,
-Stefan
compile statement:
gcc -o xtest xeno_thread_test.c -I/Network/Servers/duerer/clmc/prog/
include -I/usr/xenomai/include -I/usr/xenomai/include/posix -
D_GNU_SOURCE -D_REENTRANT -Wall -pipe -D__XENO__ -Wl,@/usr/xenomai/lib/
posix.wrappers -L/usr/xenomai/lib -lpthread_rt -lpthread -lrt
run the executable:
unix> xtest (which should generate some print-outs, but it doesn't ...)
//------------------------------------------------- start of file
-----------------------------------------------------------------------
#include <sys/mman.h>
#include <pthread.h>
#include <stdio.h>
pthread_t cthread;
// a quick thread to run ....
void *
run_thread(void *dummy)
{
int i;
for (i=1; i<=1000; ++i) {
printf("%d thread is runnning\n",i);
sleep(1);
}
return NULL;
}
// main program
int
main() {
int rc;
pthread_attr_t pth_attr;
#ifdef __XENO__
mlockall(MCL_CURRENT | MCL_FUTURE);
#endif
if ((rc=pthread_attr_init(&pth_attr)))
printf("pthread_attr_init returned %d\n",rc);
if ((rc=pthread_create( &cthread, &pth_attr, run_thread, NULL)))
printf("pthread_create returned with %d\n",rc);
// wait a bit to get some print outs from the thread
sleep(10);
return 1;
}
// ----------------------------------- end of file
------------------------------------------------------------
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