int shell_exec(const ss_ &command, const ExecOptions &opts)
{
log_d(MODULE, "shell_exec(\"%s\")", cs(command));
int f = fork();
if(f == 0){
execl("/bin/sh", "sh", "-c", command.c_str(), (const char*)nullptr);
}
int exit_status;
while(wait(&exit_status) > 0);
return exit_status;
}
void add(const ss_ &path, std::function<void(const ss_ &path)> cb)
{
for(auto &pair : m_watch){
sp_<WatchThing> &watch = pair.second;
if(watch->path == path){
log_d(MODULE, "Adding callback to path \"%s\" (inotify fd=%i)",
cs(path), pair.first);
watch->cbs.push_back(cb);
return;
}
}
int r = inotify_add_watch(m_fd, path.c_str(), IN_CLOSE_WRITE |
IN_MOVED_TO | IN_CREATE | IN_MOVED_FROM | IN_DELETE |
IN_MODIFY | IN_ATTRIB);
if(r == -1){
throw Exception(ss_()+"inotify_add_watch() failed: "+
strerror(errno)+" (path="+path+")");
}
log_d(MODULE, "Watching path \"%s\" (inotify fd=%i)", cs(path), m_fd);
m_watch[r] = sp_<WatchThing>(new WatchThing(path, {cb}));
}
static sv_<ss_> split_string_to_clean_ui_pieces(const ss_ &s, size_t piece_len)
{
sv_<ss_> result;
size_t start_from = 0;
for(;;){
if(start_from >= s.size())
break;
size_t start_from_instead = start_from;
for(size_t i=start_from; i<s.size(); i++){
if((s[i] < 'a' || s[i] > 'z') && (s[i] < 'A' || s[i] > 'Z') &&
(s[i] < '0' || s[i] > '9')){
start_from_instead = i + 1;
continue;
}
break;
}
if(start_from_instead >= s.size()){
result.push_back(s.substr(start_from));
break;
}
if(start_from_instead >= s.size() - piece_len){
result.push_back(s.substr(start_from_instead));
break;
}
size_t end_at = start_from_instead + piece_len;
if(s.size() > end_at + 2 && end_at >= 3){
if(is_spacing(s[end_at-2]) && !is_spacing(s[end_at-1]) && !is_spacing(s[end_at]) && (is_spacing(s[end_at+1]) || is_spacing(s[end_at+2]))){
end_at = end_at - 1;
} else if(is_spacing(s[end_at-3]) && !is_spacing(s[end_at-2]) && !is_spacing(s[end_at-1]) && !is_spacing(s[end_at]) && (is_spacing(s[end_at+1]) || is_spacing(s[end_at+2]))){
end_at = end_at - 2;
}
}
result.push_back(s.substr(start_from_instead, end_at - start_from_instead));
start_from = end_at;
}
return result;
}
static ss_ truncate(const ss_ &s, size_t len)
{
if(s.size() < len) return s;
return s.substr(0, len);
}
static void arduino_serial_write(const ss_ &data)
{
arduino_serial_write(data.c_str(), data.size());
}
Message(const ss_ &text="", const ss_ &short_text=""):
text(text), short_text(short_text.empty() ? text : short_text)
{}