the value at its top. This fixes a reference leak.
(PUSH_REF): Perform `pstate->top++' after calling
`PSTATE_STACK_SET ()' in order to avoid undesired potential side
effects.
(ENTER_APPLY): Remove optional use of a continuation when making
trap call.
(scm_debug_opts): Change doc for 'cheap option to make clear that
it is now obsolete.
(CEVAL, SCM_APPLY): Remove optional use of a continuation when
making trap calls, and implement substitution of eval expressions
and return values using the values that the trap call handlers
return.
* debug.h (SCM_CHEAPTRAPS_P): Removed.
* socket.c (scm_fill_sockaddr): No need to check NULL from scm_malloc.
(scm_connect, scm_bind, scm_sendto): Accept sockaddr object.
(scm_addr_vector): Renamed to _scm_from_sockaddr, update usages.
(scm_from_sockaddr, scm_to_sockaddr, scm_make_socket_address,
scm_c_make_socket_address): New functions.
(SCM_I_PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Removed.
(scm_i_pthread_mutexattr_recursive): New.
* threads.c (scm_i_pthread_mutexattr_recursive): Declare.
(scm_i_critical_section_mutex): Do not initialize statically.
(scm_threads_prehistory): Initialize
scm_i_pthread_mutexattr_recursive and scm_i_critical_section_mutex
here.
* eval.c (source_mutex): Do not initialiaze statically.
(scm_init_eval): Do it here, using
scm_i_pthread_mutexattr_recursive.
New.
(sym_reader): New.
(scm_print_opts): Added "quote-keywordish-symbols" option.
(quote_keywordish_symbol): New, for evaluating the option.
(scm_print_symbol_name): Use it.
(scm_init_print): Initialize new option to sym_reader.
hashtable and guardian machinery but call the relevant functions
directly.
* guardians.h, guardians.c, deprecated.h,
deprecated.c (scm_destroy_guardian_x, scm_guardian_greedy_p,
scm_guardian_destroyed_p, scm_guard, scm_get_one_zombie):
Deprecated and moved into deprecated.[ch].
* guardians.h, guardians.c: Mostly rewritten.
(scm_i_init_guardians_for_gc,
scm_i_identify_inaccessible_guardeds,
scm_i_mark_inaccessible_guardeds): New.
* weaks.h, weaks.c (SCM_I_WVECT_TYPE, SCM_I_SET_WVECT_TYPE): New.
(SCM_I_WVECT_N_ITEMS, SCM_I_SET_WVECT_N_ITEMS): New.
(SCM_WVECTF_NOSCAN, SCM_WVECT_NOSCAN_P): Removed.
(scm_weaks_prehistory): Removed.
(scm_i_init_weak_vectors_for_gc, scm_i_mark_weak_vector,
scm_i_mark_weak_vectors_non_weaks,
scm_i_remove_weaks_from_weak_vectors, scm_i_remove_weaks): New.
(scm_weak_vector_gc_init, scm_mark_weak_vector_spines,
scm_scan_weak_vectors): Removed.
* hashtab.h (scm_i_scan_weak_hashtables): New.
* hashtab.c (make_hash_table, scm_i_rehash): Do not use
SCM_WVECTF_NOSCAN.
(hashtable_print): Use SCM_HASHTABLE_N_ITEMS instead of
t->n_items.
(scan_weak_hashtables, scm_i_scan_weak_hashtables): Renamed former
to latter. Do not scan the alists themselves, this is done by the
weak vector code now. Just update the element count.
* vectors.h (SCM_I_WVECT_TYPE, SCM_I_WVECT_EXTRA): Renamed former
to latter. The type is now only part of the cell word.
(SCM_I_SET_WVECT_TYPE, SCM_I_SET_WVECT_EXTRA): Likewise.
* init.c (scm_i_init_guile): Do not call scm_weaks_prehistory.
mallocating for (unsigned long *bounds).
* hashtab.c (scm_i_rehash): Cast SCM_HASHTABLE_FLAGS (table) to
scm_t_bits before storing them in the type word.
* gc.c (tag_table_to_type_alist): Modified type of c_tag from
scm_t_bits to int.
