FreeCalypso > hg > freecalypso-tools
view loadtools/ltdispatch.c @ 407:19e5a3e2f9c0
fcup-settime: moved time() retrieval a little closer to the output
A fundamental problem with all simple time transfer tools is that there is
always some delay between the time retrieval on the source system and that
transmitted time being set on the destination, and the resulting time
on the destination system is off by that delay amount. This delay cannot
be fully eliminated when working in a simple environment like ours,
but we should make our best effort to minimize it. In the present case,
moving the atinterf_init() call before the time() retrieval should make
a teensy-tiny improvement.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 11 Aug 2018 21:52:17 +0000 |
parents | e7502631a0f9 |
children | 0d199c6a6ea4 |
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/* * This module implements the command dispatch for fc-loadtool */ #include <ctype.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> extern int cmd_baud(); extern int cmd_crc32(); extern int cmd_dieid(); extern int cmd_dump2bin(); extern int cmd_dump2srec(); extern int cmd_exec(); extern int cmd_exit(); extern int cmd_flash(); extern int cmd_help(); extern int loadtool_cmd_passthru(); static struct cmdtab { char *cmd; int minargs; int maxargs; int (*func)(); } cmdtab[] = { {"abbr", 2, 2, loadtool_cmd_passthru}, {"abbw", 3, 3, loadtool_cmd_passthru}, {"baud", 0, 1, cmd_baud}, {"crc32", 2, 2, cmd_crc32}, {"dieid", 0, 1, cmd_dieid}, {"dump", 2, 2, loadtool_cmd_passthru}, {"dump2bin", 3, 3, cmd_dump2bin}, {"dump2srec", 3, 3, cmd_dump2srec}, {"exec", 1, 1, cmd_exec}, {"exit", 0, 1, cmd_exit}, {"flash", 1, 5, cmd_flash}, {"flash2", 1, 5, cmd_flash}, {"help", 0, 2, cmd_help}, {"quit", 0, 1, cmd_exit}, {"r8", 1, 1, loadtool_cmd_passthru}, {"r16", 1, 1, loadtool_cmd_passthru}, {"r32", 1, 1, loadtool_cmd_passthru}, {"w8", 2, 2, loadtool_cmd_passthru}, {"w16", 2, 2, loadtool_cmd_passthru}, {"w32", 2, 2, loadtool_cmd_passthru}, {0, 0, 0, 0} }; loadtool_dispatch_cmd(cmd, is_script) char *cmd; { char *argv[10]; char *cp, **ap; struct cmdtab *tp; for (cp = cmd; isspace(*cp); cp++) ; if (!*cp || *cp == '#') return(0); if (is_script) printf("Script command: %s\n", cp); argv[0] = cp; while (*cp && !isspace(*cp)) cp++; if (*cp) *cp++ = '\0'; for (tp = cmdtab; tp->cmd; tp++) if (!strcmp(tp->cmd, argv[0])) break; if (!tp->func) { fprintf(stderr, "error: no such command\n"); return(-1); } for (ap = argv + 1; ; ) { while (isspace(*cp)) cp++; if (!*cp || *cp == '#') break; if (ap - argv - 1 >= tp->maxargs) { fprintf(stderr, "error: too many arguments\n"); return(-1); } *ap++ = cp; while (*cp && !isspace(*cp)) cp++; if (*cp) *cp++ = '\0'; } if (ap - argv - 1 < tp->minargs) { fprintf(stderr, "error: too few arguments\n"); return(-1); } *ap = 0; return tp->func(ap - argv, argv); }