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FRONTPANEL: Limit pending register value queries to a single query since there additional queries won't provide better information.

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This commit is contained in:
Mark Pizzolato 2015-02-20 16:18:41 -08:00
parent a67afa4a29
commit 02295fa215
1 changed files with 15 additions and 5 deletions
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20
sim_frontpanel.c
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@ -131,6 +131,7 @@ struct PANEL {
int io_thread_running;
pthread_mutex_t io_lock;
pthread_mutex_t io_send_lock;
int io_reg_query_pending;
int io_waiting;
pthread_cond_t io_done;
pthread_cond_t startup_cond;
@ -313,7 +314,7 @@ while (len) {
pthread_mutex_unlock (&p->io_send_lock);
return bsent;
}
_panel_debug (p, DBG_XMT, "Sent:", msg, bsent);
_panel_debug (p, DBG_XMT, "Sent %d bytes: ", msg, bsent, bsent);
len -= bsent;
msg += bsent;
sent += bsent;
@ -801,6 +802,7 @@ if (panel->reg_query_size != _panel_send (panel, panel->reg_query, panel->reg_qu
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
++panel->io_reg_query_pending;
panel->io_waiting = 1;
while (panel->io_waiting)
pthread_cond_wait (&panel->io_done, &panel->io_lock);
@ -961,7 +963,7 @@ while ((p->sock != INVALID_SOCKET) &&
p->State = Error;
break;
}
_panel_debug (p, DBG_RCV, "Received:", &buf[buf_data], new_data);
_panel_debug (p, DBG_RCV, "Received %d bytes: ", &buf[buf_data], new_data, new_data);
buf_data += new_data;
buf[buf_data] = '\0';
s = buf;
@ -991,11 +993,13 @@ while ((p->sock != INVALID_SOCKET) &&
}
else {
if (!strcmp (s + strlen (sim_prompt), register_get_echo)) {
pthread_mutex_lock (&p->io_lock);
--p->io_reg_query_pending;
if (p->callback) {
pthread_mutex_unlock (&p->io_lock);
p->callback (p, p->callback_context);
}
else {
pthread_mutex_lock (&p->io_lock);
p->io_waiting = 0;
pthread_cond_signal (&p->io_done);
pthread_mutex_unlock (&p->io_lock);
@ -1071,11 +1075,17 @@ while ((p->sock != INVALID_SOCKET) &&
_panel_register_query_string (p, &buf, &buf_data);
}
msleep (1000/rate);
if ((p->State == Run) || (0 == callback_count%(5*rate)))
pthread_mutex_lock (&p->io_lock);
if (((p->State == Run) || (0 == callback_count%(5*rate))) &&
(p->io_reg_query_pending == 0)) {
++p->io_reg_query_pending;
pthread_mutex_unlock (&p->io_lock);
if (buf_data != _panel_send (p, buf, buf_data)) {
pthread_mutex_lock (&p->io_lock);
break;
}
pthread_mutex_lock (&p->io_lock);
pthread_mutex_lock (&p->io_lock);
}
}
p->callback_thread_running = 0;
pthread_mutex_unlock (&p->io_lock);