tr_watchdir_backend *
tr_watchdir_kqueue_new (tr_watchdir_t handle)
{
const char * const path = tr_watchdir_get_path (handle);
struct kevent ke;
tr_watchdir_kqueue * backend;
backend = tr_new0 (tr_watchdir_kqueue, 1);
backend->base.free_func = &tr_watchdir_kqueue_free;
backend->kq = -1;
backend->dirfd = -1;
if ((backend->kq = kqueue ()) == -1)
{
log_error ("Failed to start kqueue");
goto fail;
}
/* Open fd for watching */
if ((backend->dirfd = open (path, O_RDONLY | O_EVTONLY)) == -1)
{
log_error ("Failed to passively watch directory \"%s\": %s", path,
tr_strerror (errno));
goto fail;
}
/* Register kevent filter with kqueue descriptor */
EV_SET (&ke, backend->dirfd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
KQUEUE_WATCH_MASK, 0, NULL);
if (kevent (backend->kq, &ke, 1, NULL, 0, NULL) == -1)
{
log_error ("Failed to set directory event filter with fd %d: %s", backend->kq,
tr_strerror (errno));
goto fail;
}
/* Create libevent task for event descriptor */
if ((backend->event = event_new (tr_watchdir_get_event_base (handle), backend->kq,
EV_READ | EV_ET | EV_PERSIST,
&tr_watchdir_kqueue_on_event, handle)) == NULL)
{
log_error ("Failed to create event: %s", tr_strerror (errno));
goto fail;
}
if (event_add (backend->event, NULL) == -1)
{
log_error ("Failed to add event: %s", tr_strerror (errno));
goto fail;
}
/* Trigger one event for the initial scan */
event_active (backend->event, EV_READ, 0);
return BACKEND_DOWNCAST (backend);
fail:
tr_watchdir_kqueue_free (BACKEND_DOWNCAST (backend));
return NULL;
}
static tr_watchdir_status onFileAdded(tr_watchdir_t dir, char const* name, void* context)
{
tr_session* session = context;
if (!tr_str_has_suffix(name, ".torrent"))
{
return TR_WATCHDIR_IGNORE;
}
char* filename = tr_buildPath(tr_watchdir_get_path(dir), name, NULL);
tr_ctor* ctor = tr_ctorNew(session);
int err = tr_ctorSetMetainfoFromFile(ctor, filename);
if (err == 0)
{
tr_torrentNew(ctor, &err, NULL);
if (err == TR_PARSE_ERR)
{
tr_logAddError("Error parsing .torrent file \"%s\"", name);
}
else
{
bool trash = false;
bool const test = tr_ctorGetDeleteSource(ctor, &trash);
tr_logAddInfo("Parsing .torrent file successful \"%s\"", name);
if (test && trash)
{
tr_error* error = NULL;
tr_logAddInfo("Deleting input .torrent file \"%s\"", name);
if (!tr_sys_path_remove(filename, &error))
{
tr_logAddError("Error deleting .torrent file: %s", error->message);
tr_error_free(error);
}
}
else
{
char* new_filename = tr_strdup_printf("%s.added", filename);
tr_sys_path_rename(filename, new_filename, NULL);
tr_free(new_filename);
}
}
}
else
{
err = TR_PARSE_ERR;
}
tr_ctorFree(ctor);
tr_free(filename);
return err == TR_PARSE_ERR ? TR_WATCHDIR_RETRY : TR_WATCHDIR_ACCEPT;
}
tr_watchdir_backend *
tr_watchdir_win32_new (tr_watchdir_t handle)
{
const char * const path = tr_watchdir_get_path (handle);
wchar_t * wide_path;
tr_watchdir_win32 * backend;
backend = tr_new0 (tr_watchdir_win32, 1);
backend->base.free_func = &tr_watchdir_win32_free;
backend->fd = INVALID_HANDLE_VALUE;
backend->notify_pipe[0] = backend->notify_pipe[1] = TR_BAD_SOCKET;
if ((wide_path = tr_win32_utf8_to_native (path, -1)) == NULL)
{
log_error ("Failed to convert \"%s\" to native path", path);
goto fail;
}
if ((backend->fd = CreateFileW (wide_path, FILE_LIST_DIRECTORY,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
NULL)) == INVALID_HANDLE_VALUE)
{
log_error ("Failed to open directory \"%s\"", path);
goto fail;
}
tr_free (wide_path);
wide_path = NULL;
backend->overlapped.Pointer = handle;
if (!ReadDirectoryChangesW (backend->fd, backend->buffer, sizeof (backend->buffer), FALSE,
WIN32_WATCH_MASK, NULL, &backend->overlapped, NULL))
{
log_error ("Failed to read directory changes");
goto fail;
}
if (evutil_socketpair (AF_INET, SOCK_STREAM, 0, backend->notify_pipe) == -1)
{
log_error ("Failed to create notify pipe: %s", tr_strerror (errno));
goto fail;
}
if ((backend->event = bufferevent_socket_new (tr_watchdir_get_event_base (handle),
backend->notify_pipe[0], 0)) == NULL)
{
log_error ("Failed to create event buffer: %s", tr_strerror (errno));
goto fail;
}
bufferevent_setwatermark (backend->event, EV_READ, sizeof (FILE_NOTIFY_INFORMATION), 0);
bufferevent_setcb (backend->event, &tr_watchdir_win32_on_event, NULL, NULL, handle);
bufferevent_enable (backend->event, EV_READ);
if ((backend->thread = (HANDLE) _beginthreadex (NULL, 0, &tr_watchdir_win32_thread,
handle, 0, NULL)) == NULL)
{
log_error ("Failed to create thread");
goto fail;
}
/* Perform an initial scan on the directory */
if (event_base_once (tr_watchdir_get_event_base (handle), -1, EV_TIMEOUT,
&tr_watchdir_win32_on_first_scan, handle, NULL) == -1)
log_error ("Failed to perform initial scan: %s", tr_strerror (errno));
return BACKEND_DOWNCAST (backend);
fail:
tr_watchdir_win32_free (BACKEND_DOWNCAST (backend));
tr_free (wide_path);
return NULL;
}
