void*
mono_threads_try_prepare_blocking (void* stackdata)
{
MonoThreadInfo *info;
if (!mono_threads_is_coop_enabled ())
return NULL;
++coop_try_blocking_count;
info = mono_thread_info_current_unchecked ();
/* If the thread is not attached, it doesn't make sense prepare for suspend. */
if (!info || !mono_thread_info_is_live (info) || mono_thread_info_current_state (info) == STATE_BLOCKING) {
THREADS_SUSPEND_DEBUG ("PREPARE-TRY-BLOCKING failed %p\n", mono_thread_info_get_tid (info));
return NULL;
}
copy_stack_data (info, stackdata);
retry:
++coop_save_count;
mono_threads_get_runtime_callbacks ()->thread_state_init (&info->thread_saved_state [SELF_SUSPEND_STATE_INDEX]);
switch (mono_threads_transition_do_blocking (info)) {
case DoBlockingContinue:
break;
case DoBlockingPollAndRetry:
mono_threads_state_poll ();
goto retry;
}
return info;
}
gboolean
mono_thread_is_gc_unsafe_mode (void)
{
MonoThreadInfo *cur = mono_thread_info_current ();
if (!cur)
return FALSE;
switch (mono_thread_info_current_state (cur)) {
case STATE_RUNNING:
case STATE_ASYNC_SUSPEND_REQUESTED:
return TRUE;
default:
return FALSE;
}
}
void
assert_gc_safe_mode (void)
{
MonoThreadInfo *cur = mono_thread_info_current ();
int state;
if (!cur)
assertion_fail ("Expected GC Safe mode but thread is not attached");
switch (state = mono_thread_info_current_state (cur)) {
case STATE_BLOCKING:
case STATE_BLOCKING_AND_SUSPENDED:
break;
default:
assertion_fail ("Expected GC Safe mode but was in %s state", mono_thread_state_name (state));
}
}
void
assert_gc_unsafe_mode (void)
{
MonoThreadInfo *cur = mono_thread_info_current ();
int state;
if (!cur)
assertion_fail ("Expected GC Unsafe mode but thread is not attached");
switch (state = mono_thread_info_current_state (cur)) {
case STATE_RUNNING:
case STATE_ASYNC_SUSPEND_REQUESTED:
case STATE_SELF_SUSPEND_REQUESTED:
break;
default:
assertion_fail ("Expected GC Unsafe mode but was in %s state", mono_thread_state_name (state));
}
}
void
assert_not_in_gc_critical_region(void)
{
CheckState *state = get_state();
if (state->in_gc_critical_region > 0) {
assertion_fail("Expected GC Unsafe mode, but was in %s state", mono_thread_state_name (mono_thread_info_current_state (mono_thread_info_current ())));
}
}
