/**
 * This is the initializer method for the i2c communication for the
 * remote device.
 *
 * @return true									- the install status
 */
bool TSL2561::begin(){

	//! We check presence
	if(check_presence(this->_address)){
		return true;
	}
	return false;
}
Esempio n. 2
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SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session)
{
	switch_channel_state_t state = CS_NEW, midstate = CS_DESTROY, endstate;
	const switch_endpoint_interface_t *endpoint_interface;
	const switch_state_handler_table_t *driver_state_handler = NULL;
	const switch_state_handler_table_t *application_state_handler = NULL;
	int silly = 0;
	uint32_t new_loops = 500;

	/*
	   Life of the channel. you have channel and pool in your session
	   everywhere you go you use the session to malloc with
	   switch_core_session_alloc(session, <size>)

	   The endpoint module gets the first crack at implementing the state
	   if it wants to, it can cancel the default behavior by returning SWITCH_STATUS_FALSE

	   Next comes the channel's event handler table that can be set by an application
	   which also can veto the next behavior in line by returning SWITCH_STATUS_FALSE

	   Finally the default state behavior is called.


	 */
	switch_assert(session != NULL);

	switch_set_flag(session, SSF_THREAD_RUNNING);
	endpoint_interface = session->endpoint_interface;
	switch_assert(endpoint_interface != NULL);

	driver_state_handler = endpoint_interface->state_handler;
	switch_assert(driver_state_handler != NULL);

	switch_mutex_lock(session->mutex);

	while ((state = switch_channel_get_state(session->channel)) != CS_DESTROY) {

		if (switch_channel_test_flag(session->channel, CF_BLOCK_STATE)) {
			switch_channel_wait_for_flag(session->channel, CF_BLOCK_STATE, SWITCH_FALSE, 0, NULL);
			if ((state = switch_channel_get_state(session->channel)) == CS_DESTROY) {
				break;
			}
		}

		midstate = state;
		if (state != switch_channel_get_running_state(session->channel) || state >= CS_HANGUP) {
			int index = 0;
			int proceed = 1;
			int global_proceed = 1;
			int do_extra_handlers = 1;
			switch_io_event_hook_state_run_t *ptr;
			switch_status_t rstatus = SWITCH_STATUS_SUCCESS;

			switch_channel_set_running_state(session->channel, state);
			switch_channel_clear_flag(session->channel, CF_TRANSFER);
			switch_channel_clear_flag(session->channel, CF_REDIRECT);
			
			if (session->endpoint_interface->io_routines->state_run) {
				rstatus = session->endpoint_interface->io_routines->state_run(session);
			}
			
			if (rstatus == SWITCH_STATUS_SUCCESS) {
				for (ptr = session->event_hooks.state_run; ptr; ptr = ptr->next) {
					if ((rstatus = ptr->state_run(session)) != SWITCH_STATUS_SUCCESS) {
						break;
					}
				}
			}
			
			switch (state) {
			case CS_NEW:		/* Just created, Waiting for first instructions */
				switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "(%s) State NEW\n", switch_channel_get_name(session->channel));
				break;
			case CS_DESTROY:
				goto done;
			case CS_REPORTING:	/* Call Detail */
				{
					switch_core_session_reporting_state(session);
					switch_channel_set_state(session->channel, CS_DESTROY);
				}
				goto done;
			case CS_HANGUP:	/* Deactivate and end the thread */
				{
					switch_core_session_hangup_state(session, SWITCH_TRUE);
					switch_channel_set_state(session->channel, CS_REPORTING);
				}

				break;
			case CS_INIT:		/* Basic setup tasks */
				{
					switch_event_t *event;

					STATE_MACRO(init, "INIT");
					
					if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_CREATE) == SWITCH_STATUS_SUCCESS) {
						switch_channel_event_set_data(session->channel, event);
						switch_event_fire(&event);
					}

					if (switch_channel_direction(session->channel) == SWITCH_CALL_DIRECTION_OUTBOUND) {
						if (switch_event_create(&event, SWITCH_EVENT_CHANNEL_ORIGINATE) == SWITCH_STATUS_SUCCESS) {
							switch_channel_event_set_data(session->channel, event);
							switch_event_fire(&event);
						}
					}
				}
				break;
			case CS_ROUTING:	/* Look for a dialplan and find something to do */
				STATE_MACRO(routing, "ROUTING");
				break;
			case CS_RESET:		/* Reset */
				STATE_MACRO(reset, "RESET");
				break;
				/* These other states are intended for prolonged durations so we do not signal lock for them */
			case CS_EXECUTE:	/* Execute an Operation */
				STATE_MACRO(execute, "EXECUTE");
				break;
			case CS_EXCHANGE_MEDIA:	/* loop all data back to source */
				STATE_MACRO(exchange_media, "EXCHANGE_MEDIA");
				break;
			case CS_SOFT_EXECUTE:	/* send/recieve data to/from another channel */
				STATE_MACRO(soft_execute, "SOFT_EXECUTE");
				break;
			case CS_PARK:		/* wait in limbo */
				STATE_MACRO(park, "PARK");
				break;
			case CS_CONSUME_MEDIA:	/* wait in limbo */
				STATE_MACRO(consume_media, "CONSUME_MEDIA");
				break;
			case CS_HIBERNATE:	/* sleep */
				STATE_MACRO(hibernate, "HIBERNATE");
				break;
			case CS_NONE:
				abort();
				break;
			}

			check_presence(session);

			if (midstate == CS_DESTROY) {
				break;
			}

		}

		endstate = switch_channel_get_state(session->channel);

		if (endstate == switch_channel_get_running_state(session->channel)) {
			if (endstate == CS_NEW) {
				switch_yield(20000);
				switch_ivr_parse_all_events(session);
				if (!--new_loops) {
					switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s %s Abandoned\n",
									  session->uuid_str, switch_core_session_get_name(session));
					switch_channel_set_flag(session->channel, CF_NO_CDR);
					switch_channel_hangup(session->channel, SWITCH_CAUSE_WRONG_CALL_STATE);
				}
			} else {
				switch_ivr_parse_all_events(session);
				switch_ivr_parse_all_events(session);

				if (switch_channel_get_state(session->channel) == switch_channel_get_running_state(session->channel)) {
					switch_channel_state_thread_lock(session->channel);
					switch_channel_set_flag(session->channel, CF_THREAD_SLEEPING);
					if (switch_channel_get_state(session->channel) == switch_channel_get_running_state(session->channel)) {
						switch_ivr_parse_all_events(session);
						switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s session thread sleep state: %s!\n", 
										  switch_channel_get_name(session->channel),
										  switch_channel_state_name(switch_channel_get_running_state(session->channel)));
						switch_thread_cond_wait(session->cond, session->mutex);
						switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG1, "%s session thread wake state: %s!\n", 
										  switch_channel_get_name(session->channel),
										  switch_channel_state_name(switch_channel_get_running_state(session->channel)));


					}
					switch_channel_clear_flag(session->channel, CF_THREAD_SLEEPING);
					switch_channel_state_thread_unlock(session->channel);
				}

				switch_ivr_parse_all_events(session);
				switch_ivr_parse_all_events(session);
			}
		}
	}
  done:
	switch_mutex_unlock(session->mutex);

	switch_clear_flag(session, SSF_THREAD_RUNNING);
}