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/* A test to check what happens using ``prctl()``.
*
* The ``prctl()`` call is available in Linux from 2.6.9.
*
* See http://www.kernel.org/doc/man-pages/online/pages/man2/prctl.2.html
*/
#include <sys/prctl.h> /* for prctl() */
#include <linux/prctl.h> /* for PR_SET_NAME */
#include <stdio.h>
#include <unistd.h>
int
main(int argc, char **argv)
{
printf("Process PID: %i\n", getpid());
prctl(PR_SET_NAME, "Hello world");
printf("Title changed, press enter\n");
getchar();
/* The string set by prctl can be read in ``/proc/PID/stat``
* and ``/proc/PID/status``. It is displayed by ``ps`` but not by ``ps a``
* (which instead displays the content of ``/proc/PID/cmdline``). ``top``
* toggles between both visualizations pressing ``c``.
*/
return 0;
}
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