/*
* The following handler is part of the inner user-interface: should
* remain extern.
*/
int cobalt_sigshadow_handler(int sig, siginfo_t *si, void *ctxt)
{
void *frames[SIGSHADOW_BACKTRACE_DEPTH];
int action, arg, nr, skip;
if (si->si_code != SI_QUEUE)
return 0;
action = sigshadow_action(si->si_int);
switch (action) {
case SIGSHADOW_ACTION_HARDEN:
XENOMAI_SYSCALL1(sc_cobalt_migrate, COBALT_PRIMARY);
break;
case SIGSHADOW_ACTION_BACKTRACE:
arg = sigshadow_arg(si->si_int);
nr = backtrace(frames, sizeof(frames) / sizeof(frames[0]));
/* Skip the sighandler context. */
skip = nr > 3 ? 3 : 0;
XENOMAI_SYSCALL3(sc_cobalt_backtrace, nr - skip, frames + skip, arg);
break;
default:
return 0;
}
return 1;
}
/*
* The following handler is part of the inner user-interface: should
* remain extern.
*/
int xeno_sigwinch_handler(int sig, siginfo_t *si, void *ctxt)
{
void *frames[SIGSHADOW_BACKTRACE_DEPTH];
int action, arg, nr, skip;
if (si->si_code != SI_QUEUE)
return 0;
action = sigshadow_action(si->si_int);
switch(action) {
case SIGSHADOW_ACTION_HARDEN:
XENOMAI_SYSCALL1(__xn_sys_migrate, XENOMAI_XENO_DOMAIN);
break;
case SIGSHADOW_ACTION_RENICE: {
struct sched_param param;
int policy;
arg = sigshadow_arg(si->si_int);
param.sched_priority = arg;
policy = param.sched_priority > 0 ? SCHED_FIFO: SCHED_OTHER;
pthread_setschedparam(pthread_self(), policy, ¶m);
break;
}
case SIGSHADOW_ACTION_BACKTRACE:
arg = sigshadow_arg(si->si_int);
nr = backtrace(frames, sizeof(frames) / sizeof(frames[0]));
/* Skip the sighandler context. */
skip = nr > 3 ? 3 : 0;
XENOMAI_SYSCALL3(__xn_sys_backtrace, nr - skip, frames + skip, arg);
break;
default:
return 0;
}
return 1;
}
int xntrace_special(unsigned char id, unsigned long v)
{
return XENOMAI_SYSCALL3(__xn_sys_trace, __xntrace_op_special, id, v);
}
int xntrace_user_freeze(unsigned long v, int once)
{
return XENOMAI_SYSCALL3(__xn_sys_trace, __xntrace_op_user_freeze,
v, once);
}
* - EINVAL, the member @a sigev_signo of the @b sigevent structure is an
* invalid signal number;
* - EAGAIN, the maximum number of timers was exceeded, recompile with a larger
* value.
*
* @see
* <a href="http://www.opengroup.org/onlinepubs/000095399/functions/timer_create.html">
* Specification.</a>
*/
COBALT_IMPL(int, timer_create, (clockid_t clockid,
const struct sigevent *__restrict__ evp,
timer_t * __restrict__ timerid))
{
int ret;
ret = -XENOMAI_SYSCALL3(sc_cobalt_timer_create, clockid, evp, timerid);
if (ret == 0)
return 0;
errno = ret;
return -1;
}
/**
* Delete a timer object.
*
* This service deletes the timer @a timerid.
*
* @param timerid identifier of the timer to be removed;
*
