DeforaOS/Phone
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Send a noop command after 2 seconds of inactivity

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This commit is contained in:
Pierre Pronchery 2010-05-08 02:32:26 +00:00
parent e003ea830e
commit 35164ad8dc
1 changed files with 44 additions and 2 deletions
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44
src/gsm.c
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@ -196,6 +196,7 @@ static GSMTrigger _gsm_triggers[] =
/* callbacks */
static gboolean _on_reset(gpointer data);
static gboolean _on_timeout(gpointer data);
static gboolean _on_watch_can_read(GIOChannel * source, GIOCondition condition,
gpointer data);
static gboolean _on_watch_can_write(GIOChannel * source, GIOCondition condition,
@ -930,8 +931,16 @@ static int _gsm_queue_push(GSM * gsm)
snprintf(gsm->wr_buf, gsm->wr_buf_cnt--, "%s%s", command, suffix);
/* FIXME shouldn't it always be the case? flush input queue first? */
if(gsm->channel != NULL && gsm->wr_source == 0)
{
gsm->wr_source = g_io_add_watch(gsm->channel, G_IO_OUT,
_on_watch_can_write, gsm);
if(gsm->source != 0 && gsm->mode != GSM_MODE_INIT)
{
/* XXX still not sure it is always _on_timeout */
g_source_remove(gsm->source);
gsm->source = 0;
}
}
return 0;
}
@ -1291,6 +1300,33 @@ static gboolean _reset_settle(gpointer data)
}
/* on_timeout */
static gboolean _on_timeout(gpointer data)
{
GSM * gsm = data;
char const noop[] = "AT\r\n";
char * p;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
gsm->source = 0;
/* FIXME this code partly duplicates _gsm_queue_push() */
/* check if the write handler is still running */
if(gsm->channel == NULL || gsm->wr_source != 0)
return FALSE;
/* inject the noop */
if((p = realloc(gsm->wr_buf, sizeof(noop) - 1)) == NULL)
return FALSE;
gsm->wr_buf = p;
memcpy(p, noop, sizeof(noop) - 1);
gsm->wr_buf_cnt = sizeof(noop) - 1;
gsm->wr_source = g_io_add_watch(gsm->channel, G_IO_OUT,
_on_watch_can_write, gsm);
return FALSE;
}
/* on_watch_can_read */
static gboolean _on_watch_can_read(GIOChannel * source, GIOCondition condition,
gpointer data)
@ -1383,7 +1419,13 @@ static gboolean _on_watch_can_write(GIOChannel * source, GIOCondition condition,
gsm->wr_source = 0;
if(gsm->mode == GSM_MODE_INIT)
_gsm_queue_pop(gsm);
else if(gsm->queue != NULL && (gsmc = gsm->queue->data) != NULL)
else
{
if(gsm->queue != NULL && (gsmc = gsm->queue->data) != NULL)
gsm->mode = gsm_command_get_mode(gsmc);
if(gsm->source != 0)
g_source_remove(gsm->source);
gsm->source = g_timeout_add(2000, _on_timeout, gsm);
}
return FALSE;
}