static void
sub_patch_add (sub_t *self, zdir_patch_t *patch)
{
// Skip file creation if client already has identical file
zdir_patch_digest_set (patch);
if (zdir_patch_op (patch) == patch_create) {
char *digest = (char *) zhash_lookup (self->cache,
zdir_patch_vpath (patch) + strlen(self->path) + 1);
if (digest && streq (digest, zdir_patch_digest (patch)))
return; // Just skip patch for this client
}
// Remove any previous patches for the same file
zdir_patch_t *existing = (zdir_patch_t *) zlist_first (self->client->patches);
while (existing) {
if (streq (zdir_patch_vpath (patch), zdir_patch_vpath (existing))) {
zlist_remove (self->client->patches, existing);
zdir_patch_destroy (&existing);
break;
}
existing = (zdir_patch_t *) zlist_next (self->client->patches);
}
if (zdir_patch_op (patch) == patch_create)
zhash_insert (self->cache,
zdir_patch_digest (patch), zdir_patch_vpath (patch));
// Track that we've queued patch for client, so we don't do it twice
zlist_append (self->client->patches, zdir_patch_dup (patch));
}
///
// Create copy of a patch. If the patch is null, or memory was exhausted,
// returns null.
QZdirPatch * QZdirPatch::dup ()
{
QZdirPatch *rv = new QZdirPatch (zdir_patch_dup (self));
return rv;
}