void poll_monitor::scan(const string &path, poll_monitor_scan_callback fn)
{
struct stat fd_stat;
if (!lstat_path(path, fd_stat)) return;
if (follow_symlinks && S_ISLNK(fd_stat.st_mode))
{
string link_path;
if (read_link_path(path, link_path))
scan(link_path, fn);
return;
}
if (!S_ISDIR(fd_stat.st_mode) && !accept_path(path)) return;
if (!add_path(path, fd_stat, fn)) return;
if (!recursive) return;
if (!S_ISDIR(fd_stat.st_mode)) return;
vector<string> children = get_directory_children(path);
for (string &child : children)
{
if (child.compare(".") == 0 || child.compare("..") == 0) continue;
scan(path + "/" + child, fn);
}
}
bool kqueue_monitor::scan(const string& path, bool is_root_path)
{
struct stat fd_stat;
if (!lstat_path(path, fd_stat)) return false;
if (follow_symlinks && S_ISLNK(fd_stat.st_mode))
{
string link_path;
if (read_link_path(path, link_path))
return scan(link_path);
return false;
}
bool is_dir = S_ISDIR(fd_stat.st_mode);
if (!is_dir && !is_root_path && directory_only) return true;
if (!is_dir && !accept_path(path)) return true;
if (!add_watch(path, fd_stat)) return false;
if (!recursive) return true;
if (!is_dir) return true;
vector<string> children = get_directory_children(path);
for (string& child : children)
{
if (child.compare(".") == 0 || child.compare("..") == 0) continue;
scan(path + "/" + child, false);
}
return true;
}
void inotify_monitor::scan(const string &path, const bool accept_non_dirs)
{
struct stat fd_stat;
if (!stat_path(path, fd_stat)) return;
/*
* When watching a directory the inotify API will return change events of
* first-level children. Therefore, we do not need to manually add a watch
* for a child unless it is a directory. By default, accept_non_dirs is
* true to allow watching a file when first invoked on a node.
*/
if (!accept_non_dirs && !S_ISDIR(fd_stat.st_mode)) return;
else if (follow_symlinks && S_ISLNK(fd_stat.st_mode))
{
string link_path;
if (read_link_path(path, link_path))
scan(link_path/*, fn */, accept_non_dirs);
return;
}
if (!S_ISDIR(fd_stat.st_mode) && !accept_path(path)) return;
if (!add_watch(path, fd_stat /*, fn */)) return;
if (!recursive || !S_ISDIR(fd_stat.st_mode)) return;
vector<string> children;
get_directory_children(path, children);
for (const string &child : children)
{
if (child.compare(".") == 0 || child.compare("..") == 0) continue;
/*
* Scan children but only watch directories.
*/
scan(path + "/" + child /*, fn */, false);
}
}
