view rvinterf/asyncshell/usercmd.c @ 619:f82551c77e58

libserial-newlnx: ASYNC_LOW_LATENCY patch reverted Reports from Das Signal indicate that loadtools performance on Debian is about the same as on Slackware, and that including or omitting the ASYNC_LOW_LATENCY patch from Serg makes no difference. Because the patch in question does not appear to be necessary, it is being reverted until and unless someone other than Serg reports an actual real-world system on which loadtools operation times are slowed compared to the Mother's Slackware reference and on which Slackware-like performance can be restored by setting the ASYNC_LOW_LATENCY flag.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 01:09:48 +0000
parents e13f60d4f8dd
children b55a81ce7497
line wrap: on
line source

/*
 * This module implements interactive fc-shell command dispatch.
 */

#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>

extern char usercmd[];

extern void cmd_disable();
extern void cmd_enable();
extern void cmd_help();
extern void cmd_key_interactive();
extern void cmd_keydown_interactive();
extern void cmd_keyup_interactive();
extern void cmd_poweroff();
extern void cmd_sendat();
extern void cmd_send_interactive();
extern void cmd_sp_interactive();
extern void cmd_tch_dispatch();
extern void cmd_tchdl_interactive();
extern void cmd_tgtreset();
extern void cmd_unterm();

void
cmd_exit()
{
	tty_cleanup();
	exit(0);
}

static struct cmdtab {
	char *cmd;
	void (*func)();
} cmdtab[] = {
	{"disable", cmd_disable},
	{"enable", cmd_enable},
	{"exit", cmd_exit},
	{"help", cmd_help},
	{"key", cmd_key_interactive},
	{"keydown", cmd_keydown_interactive},
	{"keyup", cmd_keyup_interactive},
	{"poweroff", cmd_poweroff},
	{"quit", cmd_exit},
	{"send", cmd_send_interactive},
	{"sp", cmd_sp_interactive},
	{"str", cmd_sendat},
	{"tch", cmd_tch_dispatch},
	{"tch-dl", cmd_tchdl_interactive},
	{"tgtreset", cmd_tgtreset},
	{"unterm", cmd_unterm},
	{0, 0}
};

void
dispatch_user_cmd()
{
	char *cp, *np;
	struct cmdtab *tp;

	for (cp = usercmd; isspace(*cp); cp++)
		;
	if (!*cp || *cp == '#')
		return;
	if (!strncmp(cp, "AT", 2) || !strncmp(cp, "at", 2)) {
		cmd_sendat(cp);
		return;
	}
	for (np = cp; *cp && !isspace(*cp); cp++)
		;
	if (*cp)
		*cp++ = '\0';
	for (tp = cmdtab; tp->cmd; tp++)
		if (!strcmp(tp->cmd, np))
			break;
	if (tp->func)
		tp->func(cp);
	else
		printf("error: no such command\n");
}