view rvinterf/tmsh/oneshot.c @ 497:74610c4f10f7

target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 25 May 2019 20:44:05 +0000
parents 27c41e4b21ae
children
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/*
 * This module implements the one-shot mode of operation for fc-tmsh.
 */

#include <sys/types.h>
#include <sys/errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "exitcodes.h"

extern int oneshot_nowait;
extern int sock;
extern int got_tm_response;

oneshot_command(argc, argv)
	char **argv;
{
	fd_set fds;
	int rc;

	if (!oneshot_nowait)
		init();		/* to catch the response properly */
	rc = dispatch_oneshot_cmd(argc, argv);
	if (rc)
		exit(rc);
	if (oneshot_nowait)
		exit(0);
	/* wait for response */
	for (;;) {
		FD_ZERO(&fds);
		FD_SET(sock, &fds);
		rc = select(sock+1, &fds, 0, 0, 0);
		if (rc < 0) {
			if (errno == EINTR)
				continue;
			perror("select");
			exit(ERROR_UNIX);
		}
		if (FD_ISSET(sock, &fds))
			handle_rvinterf_input();
		if (got_tm_response)
			exit(0);
	}
}