/*
* Now we try to write big enough code to duplication our array in Jim's
* list implementation. Later, we try to load a sample script in Tcl that
* could print our list.
*/
int
main(int argc, char **argv)
{
struct mystate *jconf;
Jim_Interp *interp;
Jim_Obj *errstr;
Jim_Obj *n;
Jim_Obj *v;
int error;
errstr = n = v = NULL;
error = 0;
/* This is the first function embedders should call. */
Jim_InitEmbedded();
/* Create an interpreter */
interp = Jim_CreateInterp();
assert(interp != NULL && "couldn't create interpreter");
/*
* Then, we register base commands, so that we actually implement Tcl.
*/
Jim_RegisterCoreCommands(interp);
/*
* Create unique state for our sample parser and register all
* Jim commands.
*/
jconf = mystate_new();
Jim_CreateCommand(interp, "interface", InterfaceFunc, jconf, NULL);
Jim_CreateCommand(interp, "ip", InterfaceIPFunc, jconf, NULL);
/*
* Parse a script.
*/
error = Jim_EvalFile(interp, "./net.tcl");
if (error == JIM_ERR) {
fprintf(stderr, "Couldn't execute Jim's script. "
"Error occured\n");
Jim_PrintErrorMessage(interp);
Jim_FreeInterp(interp);
exit(EXIT_FAILURE);
}
ShowInterfaces(jconf->head);
mystate_destroy(jconf);
if (n != NULL)
Jim_FreeObj(interp, n);
Jim_FreeInterp(interp);
return (EXIT_SUCCESS);
}
static int run_command(struct command_context *context,
struct command *c, const char *words[], unsigned num_words)
{
if (!command_can_run(context, c))
{
/* Many commands may be run only before/after 'init' */
const char *when;
switch (c->mode) {
case COMMAND_CONFIG:
when = "before";
break;
case COMMAND_EXEC:
when = "after";
break;
// handle the impossible with humor; it guarantees a bug report!
default:
when = "if Cthulhu is summoned by";
break;
}
LOG_ERROR("The '%s' command must be used %s 'init'.",
c->name, when);
return ERROR_FAIL;
}
struct command_invocation cmd = {
.ctx = context,
.current = c,
.name = c->name,
.argc = num_words - 1,
.argv = words + 1,
};
int retval = c->handler(&cmd);
if (retval == ERROR_COMMAND_SYNTAX_ERROR)
{
/* Print help for command */
char *full_name = command_name(c, ' ');
if (NULL != full_name) {
command_run_linef(context, "usage %s", full_name);
free(full_name);
} else
retval = -ENOMEM;
}
else if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
{
/* just fall through for a shutdown request */
}
else if (retval != ERROR_OK)
{
/* we do not print out an error message because the command *should*
* have printed out an error
*/
LOG_DEBUG("Command failed with error code %d", retval);
}
return retval;
}
int command_run_line(struct command_context *context, char *line)
{
/* all the parent commands have been registered with the interpreter
* so, can just evaluate the line as a script and check for
* results
*/
/* run the line thru a script engine */
int retval = ERROR_FAIL;
int retcode;
/* Beware! This code needs to be reentrant. It is also possible
* for OpenOCD commands to be invoked directly from Tcl. This would
* happen when the Jim Tcl interpreter is provided by eCos for
* instance.
*/
Jim_Interp *interp = context->interp;
Jim_DeleteAssocData(interp, "context");
retcode = Jim_SetAssocData(interp, "context", NULL, context);
if (retcode == JIM_OK)
{
/* associated the return value */
Jim_DeleteAssocData(interp, "retval");
retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
if (retcode == JIM_OK)
{
retcode = Jim_Eval_Named(interp, line, __THIS__FILE__, __LINE__);
Jim_DeleteAssocData(interp, "retval");
}
Jim_DeleteAssocData(interp, "context");
}
if (retcode == JIM_ERR) {
if (retval != ERROR_COMMAND_CLOSE_CONNECTION)
{
/* We do not print the connection closed error message */
Jim_PrintErrorMessage(interp);
}
if (retval == ERROR_OK)
{
/* It wasn't a low level OpenOCD command that failed */
return ERROR_FAIL;
}
return retval;
} else if (retcode == JIM_EXIT) {
/* ignore. */
/* exit(Jim_GetExitCode(interp)); */
} else {
const char *result;
int reslen;
result = Jim_GetString(Jim_GetResult(interp), &reslen);
if (reslen > 0)
{
int i;
char buff[256 + 1];
for (i = 0; i < reslen; i += 256)
{
int chunk;
chunk = reslen - i;
if (chunk > 256)
chunk = 256;
strncpy(buff, result + i, chunk);
buff[chunk] = 0;
LOG_USER_N("%s", buff);
}
LOG_USER_N("%s", "\n");
}
retval = ERROR_OK;
}
return retval;
}
