kolibrios/programs/develop/ktcc/trunk/lib/libshell/shell_ping.c

#include <shell_api.h>
#include <sys/ksys.h>

int shell_ping()
{
    *__shell_shm = SHELL_PING;

    _ksys_thread_yield();
    _ksys_delay(40);

    return *__shell_shm == SHELL_OK;
}