-/* Return a value that can be passed to do_cleanups, do_final_cleanups to
- indicate perform all cleanups. */
-
-struct cleanup *
-all_cleanups (void)
-{
- return SENTINEL_CLEANUP;
-}
-
-/* Discard cleanups and do the actions they describe
- until we get back to the point OLD_CHAIN in the cleanup_chain. */
-
-void
-do_cleanups (struct cleanup *old_chain)
-{
- do_my_cleanups (&cleanup_chain, old_chain);
-}
-
-/* Discard cleanups and do the actions they describe
- until we get back to the point OLD_CHAIN in the final_cleanup_chain. */
-
-void
-do_final_cleanups (struct cleanup *old_chain)
-{
- do_my_cleanups (&final_cleanup_chain, old_chain);
-}
-
-/* Main worker routine to discard cleanups.
- PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
- OLD_CHAIN is the result of a "make" cleanup routine.
- Cleanups are discarded until we get back to the old end of the chain. */
-
-static void
-discard_my_cleanups (struct cleanup **pmy_chain,
- struct cleanup *old_chain)
-{
- struct cleanup *ptr;
-
- while ((ptr = *pmy_chain) != old_chain)
- {
- *pmy_chain = ptr->next;
- if (ptr->free_arg)
- (*ptr->free_arg) (ptr->arg);
- xfree (ptr);
- }
-}
-
-/* Discard cleanups, not doing the actions they describe,
- until we get back to the point OLD_CHAIN in the cleanup chain. */
-
-void
-discard_cleanups (struct cleanup *old_chain)
-{
- discard_my_cleanups (&cleanup_chain, old_chain);
-}
-
-/* Discard final cleanups, not doing the actions they describe,
- until we get back to the point OLD_CHAIN in the final cleanup chain. */
-
-void
-discard_final_cleanups (struct cleanup *old_chain)
-{
- discard_my_cleanups (&final_cleanup_chain, old_chain);
-}
-
-/* Main worker routine to save cleanups.
- PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
- The chain is emptied and the result is a pointer to the old chain. */
-
-static struct cleanup *
-save_my_cleanups (struct cleanup **pmy_chain)
-{
- struct cleanup *old_chain = *pmy_chain;
-
- *pmy_chain = SENTINEL_CLEANUP;
- return old_chain;
-}
-
-/* Set the cleanup_chain to 0, and return the old cleanup_chain. */
-
-struct cleanup *
-save_cleanups (void)
-{
- return save_my_cleanups (&cleanup_chain);
-}
-
-/* Set the final_cleanup_chain to 0, and return the old
- final_cleanup_chain. */
-
-struct cleanup *
-save_final_cleanups (void)
-{
- return save_my_cleanups (&final_cleanup_chain);
-}
-
-/* Main worker routine to save cleanups.
- PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
- The chain is restored from CHAIN. */
-
-static void
-restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
-{
- if (*pmy_chain != SENTINEL_CLEANUP)
- internal_warning (__FILE__, __LINE__,
- _("restore_my_cleanups has found a stale cleanup"));
-
- *pmy_chain = chain;
-}
-
-/* Restore the cleanup chain from a previously saved chain. */
-
-void
-restore_cleanups (struct cleanup *chain)
-{
- restore_my_cleanups (&cleanup_chain, chain);
-}
-
-/* Restore the final cleanup chain from a previously saved chain. */
-
-void
-restore_final_cleanups (struct cleanup *chain)
-{
- restore_my_cleanups (&final_cleanup_chain, chain);
-}
-
-/* Provide a known function that does nothing, to use as a base for
- a possibly long chain of cleanups. This is useful where we
- use the cleanup chain for handling normal cleanups as well as dealing
- with cleanups that need to be done as a result of a call to error().
- In such cases, we may not be certain where the first cleanup is, unless
- we have a do-nothing one to always use as the base. */