/*!
* \brief Parses configuration string for the switch
* Parses a configuration string for switch settings and updates
* the configuration structure.
* \param settings the configuration string in the following form:
\verbatim
* <id>=<switch>[,<id>=<switch>]...
\endverbatim
* \return 1 on success, -1 otherwise
*/
int conf_parse_switch(char *settings)
{
/* make a copy since we are modifying it */
int len = strlen(settings);
if (len==0) return 1;
char *strc = (char *)pkg_malloc(len+1);
if (strc == NULL) {
PKG_MEM_ERROR;
return -1;
}
memcpy(strc, settings, len+1);
remove_spaces(strc);
char *set_p = strc;
char *token = NULL;
while ((token = strsep(&set_p, ","))) { /* iterate through list of settings */
char *id_str = strsep(&token, "=");
int id = conf_str2id(id_str);
if (id < 0) {
LM_ERR("cannot parse id '%s'.\n", id_str);
pkg_free(strc);
return -1;
}
/* got all data for one setting -> update configuration now */
if (update_switch(id, token) < 0) {
LM_ERR("cannot update switch.\n");
pkg_free(strc);
return -1;
}
}
pkg_free(strc);
return 1;
}
static void ensure_uncurved(struct trainsrv_state *state, int sw) {
struct switch_state switches = \
switch_historical_get_current(&state->switch_history);
if (switch_get(&switches, sw) == CURVED) {
tc_switch_switch(sw, STRAIGHT);
tc_deactivate_switch();
update_switch(state, sw, STRAIGHT);
}
}
static void handle_switch(struct trainsrv_state *state, int sw, enum sw_direction dir) {
tc_switch_switch(sw, dir);
tc_deactivate_switch();
// On the middle switches, curved curved == BAD BAD. Prevent this
// configuration by automatically rewriting it to curved straight, which
// is probably what you want.
if (sw == 153 && dir == CURVED) ensure_uncurved(state, 154);
if (sw == 154 && dir == CURVED) ensure_uncurved(state, 153);
if (sw == 155 && dir == CURVED) ensure_uncurved(state, 156);
if (sw == 156 && dir == CURVED) ensure_uncurved(state, 155);
update_switch(state, sw, dir);
}
