| Commit message (Collapse) | Author | Age | Files | Lines |
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The associative lists that make up the chains of a hash table
are guaranteed to be made of conses. We can use unsafe
versions of car, cdr, rplaca and rplacd to speed up hash
operations.
* eval.c (op_dohash): Use unsafe operations on hash cell.
* filter.c (trie_compress, regex_from_trie): Likewise.
* hash.c (hash_equal_op, hash_print_op, hash_mark, hash_grow,
hash_assoc, hash_assql, copy_hash_chain, gethash, inhash,
gethash_n, sethash, remhash, hash_next, maphash,
do_weak_tables, group_by, group_reduce, hash_keys_lazy,
hash_keys, hash_values_lazy, hash_values, hash_pairs_lazy,
hash_pairs, hash_alist_lazy, hash_uni, hash_diff,
hash_symdiff, hash_isec, hash_subset, hash_update,
hash_update_1, hash_revget): Likewise.
* lib.c (us_rplaca, us_rplacd): New functions.
(package_local_symbols, package_foreign_symbols, where,
populate_obj_hash, obj_hash_merge): Use unsafe operations on
hash cell
* lib.h (us_rplaca, us_rplacd): Declared.
* parser.c (circ_backpatch, get_visible_syms): Use unsafe
operations on hash cell.
* struct.c (method_name, get_slot_syms): Likewise.
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* eval.c (eval_init): Register symdiff intrinsic.
* lib.c (symdiff): New function.
* lib.h (us_car_p, us_cdr_p): New inline functions.
(symdiff): Declared.
* txr.1: Documented, also fixing issues not related to
symdiff doc.
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Also, these functions now support hashes.
* eval.c (eval_init): Register only the deprecated set-diff to
the set_diff function. The diff intrinsic is now going to the
new function named diff.
* lib.c (diff): New function.
(isec, uni): Rewritten to use seq_iter_t.
* lib.h (diff): Declared.
* txr.1: Documentation updated.
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This has been needed for a while. While we have seq_info for
classifying sequences to nicely dispatch code into various
cases, those cases duplicate code. The code base could benefit
from generic traversal.
* lib.c (seq_iter_get_nil, seq_iter_get_list,
seq_iter_get_vec, set_iter_get_hash): New static functions.
(seq_iter_rewind, seq_iter_init): New functions.
* lib.h (struct seq_iter, seq_iter_t): New struct type and its
typedef name.
(seq_iter_init, seq_iter_rewind): Declared.
(seq_get): New inline function.
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* eval.c (eval_init): Adjust registrations of sum and prod to
be binary functions with an optional argument.
* lib.c (nary_op_keyfun, sumv, prodv): New static functions.
(sum, prod): Implement optional keyfun argument via sumv and
prodv helpers.
* lib.h (sum, prod): Declarations updated.
* txr.1: Documentation updated.
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We support an unsigned version of the type, and add functions
for converting between Lisp values and both types.
* arith.c (bignum_dbl_uipt): New function, unsigned companion
to existing bignum_dbl_ipt.
(c_dbl_num, c_dbl_unum): New functions.
* arith.h (bignum_dbl_uipt, c_dbl_num, c_dbl_unum): Declared.
* configure (superulong_t, SIZEOF_DOUBLE_INTPTR,
DOUBLE_INTPTR_MAX, DOUBLE_INTPTR_MIN, DOUBLE_UINTPTR_MAX,
double_uintptr_t): New definitions going into config.h.
* lib.h (dbl_cnum, dbl_ucnum): New typedefs: double-sized
analogs of cnum and ucnum.
* mpi/mpi.c (mp_set_double_uintptr, mp_get_double_uintptr,
mp_get_double_intptr): New functions.
(s_mp_in_big_range): New static function.
(mp_in_double_intptr_range, mp_in_double_uintptr_range): New
functions.
* mpi/mpi.h (mp_set_double_uintptr,
mp_get_double_intptr, mp_get_double_uintptr,
mp_in_double_intptr_range, mp_in_double_uintptr_range):
Declared.
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* LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h,
arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c,
combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c,
ffi.h, filter.c, filter.h, ftw.h, gc.c, gc.h, glob.c, glob.h,
hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h,
lisplib.c, lisplib.h, match.c, match.h, parser.c, parser.h,
parser.l, parser.y, protsym.c, rand.c, rand.h, regex.c,
regex.h, share/txr/stdlib/asm.tl, share/txr/stdlib/awk.tl,
share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl,
share/txr/stdlib/compiler.tl, share/txr/stdlib/conv.tl,
share/txr/stdlib/doloop.tl, share/txr/stdlib/error.tl,
share/txr/stdlib/except.tl, share/txr/stdlib/ffi.tl,
share/txr/stdlib/getopts.tl, share/txr/stdlib/getput.tl,
share/txr/stdlib/hash.tl, share/txr/stdlib/ifa.tl,
share/txr/stdlib/keyparams.tl, share/txr/stdlib/op.tl,
share/txr/stdlib/package.tl, share/txr/stdlib/path-test.tl,
share/txr/stdlib/place.tl, share/txr/stdlib/pmac.tl,
share/txr/stdlib/socket.tl, share/txr/stdlib/stream-wrap.tl,
share/txr/stdlib/struct.tl, share/txr/stdlib/tagbody.tl,
share/txr/stdlib/termios.tl, share/txr/stdlib/trace.tl,
share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl,
share/txr/stdlib/vm-param.tl, share/txr/stdlib/with-resources.tl,
share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl,
signal.c, signal.h, socket.c, socket.h, stream.c, stream.h,
struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h,
syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h,
unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h,
win/cleansvg.txr: Extended Copyright line to 2018.
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The square function calulates (* x x) but is faster for bignum
integers by taking advantage of mp_sqr.
* arith.c (square): New function.
* eval.c (eval_init): Register square as intrinsic.
* lib.h (square): Declared.
* txr.1: Documented.
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* arith.c (nzerop): New function.
* eval.c (eval_init): Register nzerop intrinsic.
* lib.h (nzerop): Declared.
* txr.1: Documented.
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* eval.c (eval_init): Register in-range and in-range*
intrinsics.
* lib.c (in_range, in_range_star): New functions.
* lib.h (in_range, in_range_star): Declared.
* txr.1: Documented.
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Reported by Guillaume le Vaillant.
* arith.c (logxor): Fix broken behavior when the arguments are
the same nonzero fixnum, or the same bignum object.
(logxor_old): New function: verbatim copy of previous logxor.
* eval.c (eval_init): Register logxor intrinsic to the broken
function if compatibility is 202 or less.
* txr.1: Compat note added.
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* arith.c (plus, minus, neg, abso, signum, mul, trunc, mod,
floordiv, plusp, minusp, evenp, oddp, gt, lt, ge, le, numeq,
expt, exptmod, isqrt, gcd, flo_int, logand, logior, logxor,
comp_trunc, lognot, logtrunc, sign_extend, ash, bit, logcount,
tofloat, toint, width, poly, rpoly): Use the unchecked c_n
rather than c_num on quantities that are known to be of NUM
and CHR type.
* lib.h (c_n): New inline function.
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* eval.c (deep_copy_env): New function.
(eval_init): Register copy-fun intrinsic.
* eval.h (deep_copy_env): Declared.
* lib.c (copy_fun): New function.
* lib.h (copy_fun): Declared.
* vm.c (vm_copy_closure): New function.
* vm.h (vm_copy_closure): Declared.
* txr.1: Documented copy-fun.
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In this patch, the cobj_handle, cobj_ops and variants of
gethash get an additional argument to identify the caller.
Many functions are updated to pass this down.
* buf.c (buf_strm): Pass self name to cobj_handle.
* eval.c (env_fbind, env_vbind, rt_defvarl, me_case): Pass
self name to gethash_c or gethash_e.
(load): Pass self name to read_eval_stream and
read_compiled_file.
(reg_symacro): Pass situation-identifying string to gethash_c.
* ffi.c (ffi_type_struct_checked, ffi_closure_struct_checked,
ffi_call_desc_checked, uni_struct_checked):
Take self name parameter, and pass down to cobj_handle.
(ffi_get_type, ffi_get_lisp_type): Take self name and pass
down to ffi_type_struct_checked.
(union_get_ptr): Take self name and pass to
uni_struct_checked.
(ffi_union_in, ffi_union_put): Pass self name to union_get_ptr.
(ffi_type_compile): Pass self name to ffi_get_lisp_type.
(ffi_make_call_desc): Pass self name to
ffi_type_struct_checked, ffi_get_type and
ffi_call_desc_checked.
(ffi_make_closure): Pass self name to ffi_call_desc_checked.
(ffi_closure_get_fptr): Take self name, pass to
ffi_closure_struct_checked.
(ffi_typedef, ffi_size, ffi_alignof, ffi_offsetof,
ffi_arraysize, ffi_elemsize, ffi_elemtype, ffi_put_into,
ffi_put, ffi_in, ffi_get, ffi_out, make_carray): Pass self
name to ffi_closure_struct_checked.
(carray_struct_checked): Take self name, pass to cobj_handle.
(carray_set_length, carray_dup, carray_own, carray_free,
carray_type, length_carray, copy_carray, carray_ptr,
buf_carray, vec_carray, list_carray, carray_ref,
carray_refset, carray_sub, carray_replace, carray_get_common,
carray_put_common, unum_carray, num_carray, put_carray,
fill_carray): Pass self name to carray_struct_checked.
(carray_blank, carray_buf, carray_cptr): Pass self name
ffi_type_struct_checked.
(carray_pun): Pass self name to carray_struct_checked and
ffi_type_struct_checked.
(make_union): Pass self name to ffi_type_struct_checked.
(union_members, union_get, union_put, union_in, union_out):
Pass self name to uni_struct_checked.
(make_zstruct, zero_fill, put_obj, get_obj, fill_obj): Pass
self-name to ffi_type_struct_checked.
* ffi.h (ffi_closure_get_fptr, union_get_ptr): Declarations
updated.
* filter.c (trie_add): Pass self-name to gethash_l.
* hash.c (make_similar_hash, copy_hash, hash_count,
get_hash_userdata, set_hash_userdata, hash_begin, hash_next,
hash_uni, hash_diff, hash_isec): Pass self name
to cobj_handle.
(gethash_c, gethash_e): Take self name parameter and pass down
to cobj_handle.
(gethash_f): Take self parameter and pass down to gethash_e.
(gethash, inhash, gethash_n, sethash, pushhash, remhash,
clearhash, hash_update_1): Pass self name to gethash_e or gethash_c.
* hash.h (gethash_c, gethash_e, gethash_f): Declarations
updated.
(gethash_l): Take self name, and pass down to gethash_c.
* lib.c (class_check): Take self name parameter and use in
type mismatch diagnostic.
(use_sym, unuse_sym, symbol_needs_prefix, find_symbol,
intern, unintern, intern_fallback, unique, in, sel,
obj_print_impl, populate_obj_hash, obj_hash_merge): Pass self
name to gethash_f or gethash_l.
(symbol_visible, obj_init): Pass situation-identifying string
to gethash_e.
(cobj_handle, cobj_ops): Take self name parameter and pass
down to class_check.
* lib.h (class_check, cobj_handle, cobj_ops): Declarations
updated.
* match.c (v_load): Pass self name to read_compiled_file and
read_eval_stream.
* parser.c (get_parser_impl): Take self name and pass to
cobj_handle.
(ensure_parser): Pass situation-identifying string to
gethash_c.
(parser_circ_def): Pass self-name to gethash_c.
(lisp_parser_impl): Pass self name to get_parser_impl and
class_check.
(lisp_parse, nread, iread): Pass self-name to lisp_parser_impl.
(read_file_common): Take self name parameter and pass down to
get_parser_impl.
(read_eval_stream, read_compiled_file): Take self name and
pass down to read_file_common.
(load_rcfile): Pass situation-identifying string to
read_eval_streem.
(get_visible_syms): Pass situation-identifying string to
gethash_c.
(parser_errors, parser_eof): Pass self name to cobj_handle.
* parser.h (read_eval_stream, read_compiled_file):
Declarations updated.
* parser.y (rlset): Pass self name to gethash_c.
* rand.c (make_random_state, random_state_get_vec,l
random_fixnum, random_float): Pass self name to cobj_handle.
* regex.c (regex_source, regex_print, regex_run): Pass
self-name to cobj_handle.
(regex_machine_init): Take self name param and pass to
cobj_handle.
(search_regex, match_regex, match_regex_right,
regex_prefix_match, read_until_match): Pass self-name to
regex_machine_init.
* stream.c (stdio_get_fd): Pass self name to cobj_handle.
(generic_get_line): Get COBJ operations via unsafe, diret
object access rather than cobj_ops.
(set_mode_props): Get object handle via unsafe, direct object
access.
(stream_fd, sock_family, sock_type, sock_peer, set_sock_peer,
get_string_from_stream, get_list_from_stream, stream_set_prop,
stream_get_prop, close_stream, get_error, get_error_str,
clear_error, get_line, get_char, get_byte, unget_char,
unget_byte, put_buf, fill_buf, put_string, put_char, put_byte,
flush_stream, seek_stream, truncate_stream, get_indent_mode,
test_set_indent_mode, set_indent_mode, get_indent, set_indent,
inc_indent, width_check, force_break, get_set_ctx, get_ctx):
Pass self name to cobj_ops.
(make_delegate_stream): Take self name parameter, pass down to
cobj_ops.
(record_adapter): Pass self name down to make_delegate_stream.
(format): Pass self name to class_check.
* struct.c (stype_handle): Pass self name to cobj_handle.
(make_struct_type): Pass self name to class_check.
* txr.c (read_eval_stream_noerr): Take self name parameter,
pass to read_eval_stream.
(txr_main): Pass istuation-identifying string to
read_compiled_file and read_eval_stream_noerr.
* unwind.c (revive_cont): Pass self-name to cobj_handle.
* vm.c (vm_desc_struct): Take self name parameter, pass to
cobj_handle.
(vm_desc_nlevels, vm_desc_nregs, vm_desc_bytecode,
vm_desc_datavec, vm_desc_symvec, vm_execute_toplevel,
vm_execute_closure, vm_closure_entry): Pass self name to
vm_desc_struct.
(vm_closure_struct): Take self name parameter, pass to
cobj_handle.
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* lib.c (type_check2, type_check3): Functions removed.
* lib.h (type_check2, type_check3): Declarations removed.
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* arith.c (flo_int): Pass down name to type_check.
* eval.c (copy_env, env_fbind, env_vbind, env_vb_to_fb,
func_get_name, lexical_var_p, lexical_fun_p,
lexical_lisp1_binding, squash_menv_deleting_range, op_upenv):
Pass relevant Lisp function name to type_check.
(lookup_global_var, lookup_sym_lisp1, lookup_fun, lookup_mac,
lookup_symac, lookup_symac_lisp1): For these widely used
functions, pass situational prefix in place of function name.
They may get a funtion name argument in the future.
* gc.c (gc_finalize): Pass function name to type_check.
* lib.c (throw_mismatch): Take function nme argument,
incorporate into mesage.
(lcons_fun, c_flo, string_extend, symbol_name, symbol_package,
get_package, package_name, func_get_form, func_get_env,
func_set_env, vec_set_length, length_vec, size_vec, list_vec,
lay_str_force, lay_str_force_upto, lazy_str_get_trailing_list,
from, too, set_from, set_to): Pass relevant Lisp function name
to type_check.
(symbol_setname, symbol_visible): Pass indication of internal
error into type_check, since this doesn't pertain to any Lisp
function being wrong.
* lib.h (throw_mismatch): Declaration updated.
(type_check): Take new parameter and pass down to
throw_mismatch.
* signal.c (set_sig_handler): Pass name down to type_check.
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* lib.c (symbol_needs_prefix): New parameter.
(unquote_star_check, obj_print_impl): Pass Lisp function name
to symbol_needs_prefix.
* lib.h (symbol_needs_prefix): Declaration updated.
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More streamlined code, better identification of functions.
* arith.c (not_number, not_integer, invalid_ops, invalid_op,
divzero): New static functions.
(num_to_buffer, bugnum_len, plus, minus, neg, abso, signum,
mul, trunc1, mod, floordiv, round1, roundiv, divi, zerop,
plusp, minusp, evenp, oddp, gt, lt, ge, le, numeq, expt,
exptmod, floorf, ceili, sine, cosi, tang, asine, acosi, atang,
loga, logten, logtwo, expo, sqroot, int_flo, flo_int,
cum_norm_dist, inv_cum_norm): Establish function's Lisp name as
self variable. Use new static functions for reporting common
errors. Pass function name to new argument of c_flo function.
* buf.c (buf_put_float, buf_put_double): Pass function's Lisp
name to c_flo function.
* ffi.c (ffi_float_put, ffi_double_put): Likewise.
* lib.c (c_flo): Takes new argument, name of calling function.
* lib.h (c_flo): Declaration updated.
* stream.c (formatv): Pass function name to c_flo.
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The code is using gc_mutated in situations that resemble
assignment: a value is stored into a slot in some object.
These situations should be handled using the same logic as
embodied in the gc_set function. This is because gc_set will
consider both objects, and in many cases will not have to do
anything special. E.g. if an immature object is stored into
another immature object, or mature into immature, or mature
into mature. Whereas gc_mutated is a "just in case" function
which forces the garbage collector to traverse the indicated
object, if that object is mature.
In this patch we refactor gc_set to expose its underlying
logic with a somewhat more flexible function called
gc_assign_check. We put that behind a conditionally defined
macro called setcheck, and then use that to replace
invocations of the mut macro in various places.
The only uses of gc_mutated that remain are in the bulk
vector assignment and copy_struct: operations in which
potentially many element values are migrated from one
aggregate object to another, making it potentially expensive
to do individual assignment checks.
* gc.c (gc_assign_check): New function, formed from guts of
gc_set.
(gc_set): Now a trivial function, implemented via call to
gc_assign_check.
* gc.h (gc_assign_check): Declared.
* lib.c (cons): Use setcheck instead of gc_mutated, since we
are storing only two values into the existing cons: the car
and the cdr.
* struct.c (clear_struct): Use setcheck instead of gc_mutated,
since we are just storing one value into the structure, the
clear_val. The fact that we are storing it into multiple slots
is irrelevant.
* vm.c (vm_make_closure): Use setcheck instead of mut, using
the new heap_vector as the child object with regard to the
closure. Rationale: the only threat here is that when we
allocate the heap vector, a GC is triggered which pushes the
closure into the mature generation. Then the store of the heap
vector into the closure is a wrong-way reference, with regard
to generational GC. The elements in the vector are immaterial;
they are older than both the closure and the vector, therefore
their relationship to either object is a right-way reference.
(vm_set, vm_sm_set): Replace mut by a setcheck between the
vector from the display and the new value being stored in it.
(vm_stab): Replace the gc_mutated check, which should have
been a mut macro call, with a setcheck between the vm, and the
binding being stored into the table. The gc_mutated should
have been wrapped with an #if CONFIG_GEN_GC so we are fixing
a build bug here: the code would have prevented TXR from being
built with the generational GC disabled.
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Throughout the hashing framework, hashes are reduced into the
fixnum range, and returned as cnum. This is not necessary;
only the hash-eql and hash-equal functions need to reduce
hashes to fixnums. Let's make it ucnum everywhere else, using
its full range (no reduction into the [0, NUM_MAX) range).
* hash.c (struct hash_ops): hash_fun function pointer returns
ucnum instead of cnum.
(hash_double): Return unreduced ucnum. Obsolete #ifdef-s
removed; the ucnum type gives us a pointer-wide unsigned
integer on all platforms.
(equal_hash, eql_hash): Return ucnum. Don't reduce values to
fixnum range. Some of the way we combine hashes from recursive
calls changes; we multiply by at most 2 not to lose too many
bits.
(eql_hash_op, cobj_eq_hash_op, hash_hash_op): Return ucnum.
* hash.h (equal_hash): Declaration updated.
* lib.c (cobj_handle_hash_op): Return value changes to ucnum.
* lib.h (struct cobj_ops): Hash function pointer's return
type changes.
(cobj_eq_hash_op, cobj_handle_hash_op): Declarations updated.
* struct.c (struct_inst_hash): Return value changes to ucnum.
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Hashing of buffers and character strings is being replaced
with a seedable hash, providing a tool against denial of
service attacks against hash tables.
This commit lays most of the groundwork: most of the internal
interface changes, and a new hashing implementation. What is
missing is the mechanisms to do the seeding.
* hash.c (struct hash_ops): Hash operation now takes a seed
argument of type ucnum.
(struct hash): New member, seed.
(hash_str_limit): Default value changed to INT_MAX.
A short value opens the gateway to an obvious collision attack
whereby strings sharing the same 128 character prefix are
entered into the same hash table, which will defeat any
seedings strategy.
(randbox): New static array. Values come from the Kazlib hash
module, but are not used in exactly the same way.
(hash_c_str, hash_buf): Now take a seed argument, and are
rewritten.
(equal_hash): Takes a seed, and passes it to hash_c_str,
hash_buf and to recursive self calls.
(eql_hash_op): New static function. Adapts the eql_hash
operation, which doesn't take a seed, to the new interface
that calls for a seed.
(obj_eq_hash_op): Take a seed; ignore it.
(hash_hash_op): Take a seed, pass it down to equal_hash.
(hash_eql_ops): Wire hash functiono pointer to eql_hash_op
instead of eql_hash.
(make_hash): For now, intialize the hash's seed to zero.
(make_similar_hash): Copy original hash's seed.
(gethash_c, gethash_e, remhash): Pass hash table's seed to
the hashing function.
(hash_equal): Pass a seed of zero to equal_hash for now;
this function will soon acquire an optional parameter for the
seed.
* hash.h (equal_hash): Declaration updated.
* lib.c (cobj_handle_hash_op): Take seed argument, pass down.
* lib.h (cobj_ops): Hash operation now takes seed.
(cobj_eq_hash_op, cobj_handle_hash_op): Declarations updated.
* struct.c (struct_inst_hash): Take seed argument, pass down.
* tests/009/json.expected: Updated, because the hash table
included in this output is now printed in a different order.
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This is in ANSI CL; potentially useful and hard to
implement efficiently in user code.
* arith.c (logcount): New function.
* eval.c (eval_init): Register logcount intrinsic.
* lib.h (logcount): Declared.
* mpi/mi.c (s_mp_count_ones): New static function.
(mp_count_ones): New function.
* mpi/mpi.h (mp_count_ones): Declared.
* txr.1: Documented.
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* lib.c (chk_wrealloc): New function.
* lib.h (mem_t): Wrap with ifndef block.
(MEM_T_DEFINED): New preprocessor symbol.
(chk_wrealloc): Declared.
* linenoise/linenoise.c (LINENOISE_MAX_DISP): Adjust to a
reasonable value; just twice the number of abstract
characters. The 8 factor had been chosen to cover the worst
case that every character is mapped to a tab.
(struct lino_state): Almost everything char typed turns to
wchar_t. The TTY isn't referenced with Unix file descriptors,
ifd and ofd, but abstract stream handles tty_ifs and tty_ofs.
The ifs member isn't required any more since plain mode is
handled via the tty_ifs stream.
(mem_t): Declaration removed; now in linenoise.h.
(chk_malloc, chk_realloc, chk_strdup_utf8): Declarations
removed.
(lino_os): New static structure.
(nelem): New macro.
(wcsnprintf): New static function.
(enable_raw_mode, disable_raw_mode): Get Unix FD from stream
using lino_os interface.
(get_cursor_position, get_columns, handle_resize, record_undo,
remove_noop_undo, restore_undo, undo_renumber_hist_idx,
compare_completions, complete_line, lino_add_completion,
next_hist_match, history_search, show_help,
struct abuf, ab_append, ab_free, sync_data_to_buf,
refresh_singleline, screen_rows, col_offset_in_str,
refresh_multiline, scan_match_rev, scan_match_fwd, scan_fwd,
find_nearest_paren, usec_delay, flash, yank_sel, delete_sel,
edit_insert, edit_insert_str, edit_move_eol,
edit_history_next, edit_delete, edit_backspace,
edit_delete_prev_all, edit_delete_to_eol, edit_delete_line,
edit_in_editor, edit, linenoise, lino_make, lino_cleanup.
lino_free, free_hist, lino_hist_add, lino_hist_save,
lino_set_result): Revised using streams, wide chars and
lino_os interface.
(lino_init): New function.
* linenoise/linenoise.h (LINO_PAD_CHAR): New preprocessor
symbol.
(mem_t): Defined here.
(MEM_T_DEFINED): New preprocessor symbol.
(struct lino_os, lino_os_t): New structure.
(lino_os_init): New macro.
(struct lino_completions, lino_compl_cb_t, lino_atom_cb_t,
lino_enter_cb_t): Switch to wchar_t.
(lino_init): New function.
(lino_add_completion, lino_make, linenoise, lino_hist_add,
lino_hist_save, lino_hist_load, lino_set_result)
* parser.c (find_matching_syms, provide_completions,
provide_atom, is_balanced_line, repl): Adapt to
wide character linenoise.
(lino_fileno, lino_puts, lino_getch, lino_getl, lino_gets,
lino_feof, lino_open, lino_open8, lino_fdopen, lino_close):
New static functions.
(linenoise_txr_binding): New static structure.
(parse_init): Call lino_init, passing OS binding.
* txr.1: Update text about the listener's limitations.
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When compile-file writes emits the file, it does so with
*package* bound to a temporary package named "$" so that all
the symbols get fully qualified. Problem is, this is a valid
package name and is added to the package list. While the
package exists, symbols such as $:a could be interned. If such
symbols occur in code being compiled, they get emitted using
unqualified names. Let's introduce an internal interface for
making an anonymous package which isn't on the list of
package, and which has a name that results in bad syntax if it
occurs in print.
* eval.c (eval_init): Register sys:make-anon-package
intrinsic.
* lib.c (make_package_common): New static function.
(make_package): Package construction and initialization
code moved into make_package_common.
(make_anon_package): New function.
* lib.h (make_anon_package): Declared.
* share/txr/stdlib/compiler.tl (usr:compile-file): When
writing out translation, bind *package* to anonymous
package from sys:make-anon-package.
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The vm_execute function is heavily inlined by gcc, and
requires almost 500 bytes of stack space. The stack space
really adds up when the vm re-enters itself recursively.
Also, pointers to garbage can hide in areas of that bloated
stack frame that are not being used by execution paths,
adding to the spurious retention problem.
* lib.h (NOINLINE): New preprocessor symbol.
* vm.c (vm_prof, vm_frame, vm_sframe, vm_dframe, vm_end,
vm_fin, vm_call, vm_apply, vm_gcall, vm_gapply, vm_movrs,
vm_movsr, vm_movrr, vm_movrsi, vm_movsmi, vm_movrbi, vm_if,
vm_ifq, vm_ifql, vm_swtch, vm_uwprot, vm_block,
vm_no_block_err, vm_retsr, vm_retrs, vm_retrr, vm_abscsr,
vm_catch, vm_handle, vm_getsym, vm_getbind, vm_setsym,
vm_bindv, vm_close, vm_execute): Apply INLINE to functions.
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* eval.c (eval_init): vm-fun-p intrinsic registered.
* lib.c (vm_fun_p): New function.
* lib.h (vm_fun_p): Declared.
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* lib.c (public_package): New variable.
(obj_init): Protect public_package from gc. Initialize
it with a package called "pub" which has the user
package in its fallback list.
* lib.h (public_package): Declared.
* eval.c (eval_init): Initialize package_s to public_package
rather than user_package, except in compat <= 190 mode.
* txr.c (txr_main): Bind *package* to public_package
rather than user_package, except in compat <= 190 mode.
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The identifiers user_package, system_package and
keyword_package are preprocessor symbols that expand to other
preprocessor symbols for no good reason. Time to get rid of
this.
* lib.c (system_package_var, keyword_package_var,
user_package_var): Variables renamed to system_package,
keyword_package and user_package.
(symbol_package, keywordp, obj_init): Fix variable
references to follow rename.
* lib.h (keyword_package, user_package, system_package):
Macros removed.
(system_package_var, keyword_package_var,
user_package_var): Variables renamed.
* eval.c (eval_init): Fix variable references to
follow rename.
* parser.y (sym_helper): Likewise.
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Because the regex printer wrongly uses out_str_char (for the
sake of borrowing its semicolon-notation processing) when
a regex prints, all characters that require escaping in a
string literal get escaped, which includes the " character.
Unfortunately the \" sequence which results is rejected
by the regex parser.
* lib.c (out_str_char): Kludge: add extra argument to
distinguish regex use versus string use, and treat the double
quote accordingly.
(out_str_readable): Give 0 arg to new param of out_str_char.
* lib.h (out_str_char): Declaration updated.
* regex.c (print_class_char, print_rec): Pass 1 to new param
of out_str_char.
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Suppose that we have two symbols of the same name, in two
packages: foo:sym and bar:sym. Suppose that the bar package
has foo in its package fallback list, and suppose bar is the
current package. Then bar:sym prints without a package prefix,
as just sym. However, this is potentially ambiguous. Suppose
that bar:sym is written to a file as just sym. Then later the
file is read into a fresh image in a situation in which
bar:sym has not yet been interned, but foo:sym already exists.
In this situation, sym will just resolve to foo:sym.
The printer must detect this ambiguous situation. If a symbol
is present in a package, but a same-named symbol is in the
fallback list; or if a symbol is visible in the fallback list,
but a same-named symbol is present in the package, then
a package prefix should be printed.
* lib.c (symbol_needs_prefix): New function.
(unquote_star_check, obj_print_impl): Use symbol_needs_prefix
rather than symbol_visible.
* lib.h (symbol_needs_prefix): Declared.
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Using reduce-left is inefficient; it conses up a list.
We can decimate the stacked arguments without consing.
* lib.c (nary_op): Replace reduce_left with iteration.
(nary_simple_op): New function, variant of nary_op
useable by functions that have a mandatory argument
passed separately from the argument list.
(minusv, divv): Replace reduce_left with iteration.
(maxv, minv): Replace reduce_left with nary_simple_op.
(abso_self): New static function.
(gcdv, lcmv): Replace reduce_left with nary_op.
* lib.h (nary_simple_op): Declared.
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* eval.c (eval_init): Use the old ldiff function under
compatibility with 190 or lower.
* lib.c (ldiff): Rewritten.
(ldiff_old): New function, copy of previous version of ldiff.
* lib.h (ldiff_old): Declared.
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This commit is the start of compiler work to make TXR Lisp
execute faster. In six days of part time work, we now have a
register-style virtual machine with 32 instructions, handling
exceptions, unwind-protect, lexical closures, and global
environment access/mutation. We have a complete assembler and
disassembler for this machine. The assembler supports labels
with forward referencing with backpatching, and features
pseudo-ops: for instance the (mov ...) pseudo-instruction
chooses one of three kinds of specific move instruction based
on the operands.
* Makelfile (OBJS): Add vm.o.
* eval.c (lookup_sym_lisp1): Static function becomes external;
the virtual machine needs to use this to support that style
of lookup.
* genvmop.txr: New file. This is the generator for the
"vmop.h" header.
* lib.c (func_vm): New function.
(generic_funcall): Handle the FVM function type via new
vm_execute_closure function. In the variadic case, we want
to avoid the argument copying which we do for the sake of C
functions that get their fixed arguments directly, and then
just the trailing arguments. Thus the code is restructured a
bit in order to switch twice on the function type.
(init): Call vm_init.
* lib.h (functype_t): New enum member FVM.
(struct func): New member in the .f union: vm_desc.
(func_vm): Declared.
* lisplib.c (set_dlt_entries_impl): New static function,
formed from set_dlt_entries.
(set_dlt_entries): Reduced to wrapper for
set_dlt_entries_impl, passing in the user package.
(set_dlt_entries_sys): New static function: like
set_dlt_entries but targetting the sys package.
(asm_instantiate, asm_set_entries): New static functions.
(lisplib_init): Auto-load the sys:assembler class.
* share/txr/stdlib/asm.tl: New file.
* vm.c, vm.h, vmop.h: New files.
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* lib.h (static_forward, static_def): At least the C version
of these now require a trailing semicolon.
* struct.c (struct_type_ops): Add required semicolon after
static_def.
* syslog.c (syslog_strm_ops): Add required semicolon after
static_forward and after static_def.
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* LICENSE, LICENSE-CYG, METALICENSE, Makefile, args.c, args.h,
arith.c, arith.h, buf.c, buf.h, cadr.c, cadr.h, combi.c,
combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c,
ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c,
glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c,
lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c,
parser.h, parser.l, parser.y, protsym.c, rand.c, rand.h,
regex.c, regex.h, share/txr/stdlib/awk.tl,
share/txr/stdlib/build.tl, share/txr/stdlib/cadr.tl,
share/txr/stdlib/conv.tl, share/txr/stdlib/doloop.tl,
share/txr/stdlib/error.tl, share/txr/stdlib/except.tl,
share/txr/stdlib/ffi.tl, share/txr/stdlib/getopts.tl,
share/txr/stdlib/getput.tl, share/txr/stdlib/hash.tl,
share/txr/stdlib/ifa.tl, share/txr/stdlib/keyparams.tl,
share/txr/stdlib/op.tl, share/txr/stdlib/package.tl,
share/txr/stdlib/path-test.tl, share/txr/stdlib/place.tl,
share/txr/stdlib/pmac.tl, share/txr/stdlib/socket.tl,
share/txr/stdlib/stream-wrap.tl, share/txr/stdlib/struct.tl,
share/txr/stdlib/tagbody.tl, share/txr/stdlib/termios.tl,
share/txr/stdlib/txr-case.tl, share/txr/stdlib/type.tl,
share/txr/stdlib/with-resources.tl,
share/txr/stdlib/with-stream.tl, share/txr/stdlib/yield.tl,
signal.c, signal.h, socket.c, socket.h, stream.c, stream.h,
struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h,
syslog.c, syslog.h, termios.c, termios.h, txr.1, txr.c, txr.h,
unwind.c, unwind.h, utf8.c, utf8.h, win/cleansvg.txr:
Extended Copyright line to 2018.
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* eval.c (term): Function here from lib.c, and changed to
static. It is used only by iapply.
* lib.c (term): Function moved to eval.c.
* lib.h (term): Declaration removed.
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* lib.c (listref_l): Unused function removed.
* lib.h (listref_l): Declaration removed.
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* lib.c (ltail): Function removed. This was introduced at the
same time as lazy_appendv and used only by it. That function
was rewritten a few months ago and doesn't use lail.
* lib.h (ltail): Declaration removed.
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* lib.c (lastcons): Return value is just the last cons rather
than a loc. The only caller of this function is last.
(last): Adapt to the new lastcons.
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* eval.c (eval_init): Register rplaca and rplacd using new
rplaca_s and rplacd_s symbol variables.
* lib.c (rplaca_s, rplacd_s): New symbol variables.
(rplaca): Handle struct object via rplaca method, if it has
one, otherwise lambda-set, if it has that, or else error
out.
(rplacd): Handle struct object via rplacd method.
* lib.h (rplaca_s, rplacd_s): Declared.
* txr.1: Documented rplaca and rplacd methods.
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* eval.c (op_prof): Deal with the cases when alloc_bytes_t
value cannot be converted to a val in a single call to
unum.
* lib.h (SIZEOF_ALLOC_BYTES_T): New macro.
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Inspired by APL.
* eval.c (eval_init): Register grade intrinsic.
* lib.c (grade): New function.
* lib.h (grade): Declared.
* txr.1: Documented.
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The purpose of this commit is to address certain situations in
which code is wrongly relying on a cnum value being in the
fixnum range (NUM_MIN to NUM_MAX), so that num_fast can safely
be used on it.
One wrong pattern is that c_num is applied to some Lisp value,
and that value (or one derived from it arithmetically) is then
passed to num_fast. The problem is that c_num succeeds on
integers outside of the fixnum range. Some bignum values
convert to a cnum successfully. Thus either num has to be used
instead of num_fast, or else the original c_num attempt must
be replaced with something that will fail if the original
value isn't a fixnum. (In the latter case, any arithmetic on
the fixnum cannot produce value outside of that range).
* buf.c (buf_put_bytes): The size argument here is not
guaranteed to be in fixnum range: use num.
* combi.c (perm_init_common): Throw if the sequence length
isn't a fixnum. Thus the num_fast in perm_while_fun is
correct, since the ci value is bounded by k, which is bounded
by n.
* hash.c (hash_grow): Remove dubious assertion which aborts
the run-time if the hash table doubling overflows. Simply
don't allow the modulus to grow beyond NUM_MAX. If doubling
it makes it larger than NUM_MAX, then just don't grow the
table. We need the modulus to be in fixnum range, so that
uses of num_fast on the modulus value elsewhere are correct.
(group_by, group_reduce): Use c_fixnum rather than c_num to
extract a value that is later assumed to be a fixnum.
* lib.c (c_fixnum): New function.
(nreverse, reverse, remove_if, less, window_map_list,
sort_vec, unique): Use c_fixnum rather than c_num to extract a
value that is later assumed to be a fixnum.
(string_extend): Use c_fixnum rather than c_num to extract a
value that is later assumed to be a fixnum. Cap the string
allocation size to fixnum range rather than INT_PTR_MAX.
(cmp_str): The wcscmp function could return values outside
of the fixnum range, so we must use num, not num_fast.
* lib.h (c_fixnum): Declared.
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We don't want to be aborting on OOM, but throwing an
exception.
* lib.c (alloc_error_s): New symbol variable.
(oom_realloc): Global variable removed.
(oom): New static function.
(chk_malloc, chk_malloc_gc_more, chk_calloc, chk_realloc):
Call oom instead of removed oom_realloc handler.
(env): Throw alloc-error rather than error by calling oom.
(obj_init): Initialize alloc_error_s.
(init): Drop function pointer argument; do not
initialize removed oom_realloc.
* lib.h (alloc_error_s): Declared.
(oom_realloc): Declaration removed.
(init): Declaration updated.
* txr.1: Type tree diagram includes alloc-error.
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* eval.c (eval_init): Register spl and tok intrinsics.
* lib.c (spl, tok): New functions.
* txr.1: Documented.
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We are allowing calls like (* "a") and (+ "a")
without diagnosing that the argument isn't of a valid
type. Note that (max "a") is fine beacause min and
max use the less function; they are not strictly numeric.
* lib.c (nary_op): Beef up function with additional argument
for type checking the unary case.
(unary_num, unary_arith, unary_int): New static functions.
(plusv, mulv, logandv, logiorv): Use new nary_op interface.
(gtv, ltv, gev, lev, numeqv, numneq): Check the
first number.
* lib.c (nary_op): Declaration updated.
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* eval.c (eval_init): prod and sum intrinsics registered.
* lib.c (sum, prod): New functions.
* lib.h (sum, prod): Declared.
* txr.1: Documented.
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* eval.c (eval_init): Register set-diff under two
names: set-diff and diff. Register new isec and uni
intrinsics.
* lib.c (isec, uni): New functions.
* lib.h (isec, uni): Declared.
* txr.1: Documented new uni and isec functions, new diff
function name, and the deprecation of set-diff and its order
guarantee w.r.t the left sequence.
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Just the ANSI CL nth for lists.
* eval.c (eval_init): Register nth intrinsic.
* lib.c (nth): New function.
* lib.h (nth): Declared.
* share/txr/stdlib/place.tl (nth): New place macro,
trivially takes care of making nth an accessor.
Place macros are terrific!
* txr.1: Documented.
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* eval.c (eval_init): Register new intrinsic relate.
* lib.c (do_relate, do_relate_dfl): New static functions.
(relate): New function.
* lib.h (relate): Declared.
* txr.1: Documented.
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