| Commit message (Collapse) | Author | Age | Files | Lines |
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low level C pointers, while we execute code that can cons memory.
* lib.c (list_str): Protect the str argument.
(int_str): Likewise.
* regex.c (search_regex): protect the haystack string,
while using the h pointer to its data, since regex_run
can use the derivative-based engine which conses.
* stream.c (vformat_str): Protect str argument, since
put_char might conceivably cons.
(vformat): Protect fmtstr.
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debug.h, eval.c, eval.h, filter.c, filter.h, gc.c, gc.h, hash.c,
hash.h, lib.c, lib.h, match.c, match.h, parser.h, parser.l, parser.y,
rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, stream.c,
stream.h, syslog.c, syslog.h, txr.c, txr.h, unwind.c, unwind.h,
utf8.c, utf8.h: Synchronize license header with LICENSE.
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(stream_init): Registered new functions as intrinsics.
* stream.h (put_strings, put_lines): Declared.
* txr.1: Documented.
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* stream.c (get_string): New function.
* stream.h (get_string): Declared.
(stream_init): get_string registered as get-string intrinsic.
* txr.1: Documented get-string, and get-lines as a synonym for
lazy-stream-cons. Documented the behavioral difference of
lazy-stream-cons lazy lists for real-time and non-real-time streams.
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checking for leading slash.
* stream.c (abs_path_p): New function.
(stream_init): Register abs_path_p as abs-path-p.
* stream.h (abs_path_p): Declared.
* txr.1: Documented abs-path-p.
* dep.mk: Updated.
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be explicitly requested by the -B option.
* match.c (opt_nobindings): Variable removed.
(opt_print_bindings): New variable.
(extract): Print bindings or "false" if opt_print_bindings is true.
* stream.c (output_produced): Variable removed.
(stdio_put_string, stdio_put_char, stdio_put_byte): Remove
update of output_produced.
* stream.h (output_produced): Declaration removed.
* txr.1: Documentation updated.
* txr.c (txr_main): Option 'b' does nothing. 'B', 'l', 'a',
and '--lisp-bindings' set opt_print_bindings to 1.
* txr.h (opt_nobindings): Declaration removed.
(opt_print_bindings): Declared.
* unwind.c (uw_throw): When exiting due to a query error or
file error, print false when opt_print_bindings is true.
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optional argument defaulting logic.
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GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
Change to how locations are passed around, for the sake of generational
GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
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passing escaped arguments to Microsoft's popen and system
functions. The first argument cannot be quoted, but the
subsequent ones can. It is the quoting of the first argument
that causes the whole thing to be quoted. So we just
avoid quoting the first argument. (If it has spaces, too bad;
don't do that).
(open_process): Fix neglected optional argument handling
in Windows version of this function.
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* stream.c (run): Implement using _wspawnvp on MinGW.
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work right with arguments, though: the win command line is broken.
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exit status.
(sh, run): New static functions.
(stream_init): sh and run registered as intrinsics.
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(op_prof, me_pprof): New static functions.
(eval_init): Intern prof symbol, store in prof_s.
Captured interned + symbol in plus_s. Register prof operator and pprof
macro.
* gc.c (gc_bytes): New global variable.
(more): Use nse function chk_malloc_gc_more instead of chk_malloc.
(make_obj): Increment gc_bytes.
* lib.c (malloc_bytes): New global variable.
(chk_malloc, chk_realloc): Increment malloc_bytes.
(chk_calloc): Bugfix: incorrect size in recursion into oom_realloc.
Incorrect calculation of malloc_high_bound. Increment malloc_bytes.
(chk_malloc_gc_more): New function.
* lib.h (alloc_bytes_t): New typedef.
(malloc_bytes, gc_bytes): Declared.
(chk_malloc_gc_more): Declared.
* stream.c (format_s): New symbol global.
(stream_init): format_s inited.
format_s used to register formatv function.
* stream.h (format_s): Declared.
* txr.1: Documented prof and pprof.
* genvim.txr: Recognize reg_fun calls with intern
followed by a preceding assignment or other syntax.
* txr.vim: Updated.
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* stream.c (open_process): Fixed off-by one erroneous value of nargs,
causing memory leak of one string. Fixed memory leak on fork failure.
Fixed a deadlock that can occur in the pipe close function when
multiple pipes are in existence. This is fixed by setting the
FD_CLOEXEC flag on the pipe file descriptor. Without this, one child
process can hold another's pipe open, causing that other one not to
terminate when we're trying to shut it down, resulting in that child
blocked on a write, while we block on waitpid.
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kill the child process less abruptly by hitting it with SIGINT and
SIGTERM, rather than with SIGKILL. Also, collect the child
process with waitpid.
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in the child process after dup2-ing it to standard input or standard
output, so the child doesn't have to references to the pipe.
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Do not throw exceptions for normal process terminations, only for
abnormal ones (terminated by a signal). Return the termination
status instead of just t.
* txr.1: Fixed the neglected documentation of the optional boolean
argument of close-stream. Described the behaviors with regard
to pipes in more detail.
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* eval.h (apply_intrinsic, lazy_mapcar): Declarations added.
* stream.c (open_files, open_file_star): New functions.
(stream_init): Registered new functions as intrinsics.
* txr.1: Documented open-files and open-files*. Added to make-catenated-stream documentation.
* genvim.txr: Replace bunch of code with open-files.
* txr.vim: Regenerated.
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precision (i.e. given by *). The simplest way to do this is to add a
state vf_star which is similar to vf_digits, and reuses much of the
logic via a goto. Fixing forgotten --fmt (push back char) when moving
from vf_precision to vf_spec state due to unhandled character.
Also, allowing a leading zero before a precision given as *
so that computed precisions can be combined with zero padding.
* txr.1: Documented leading zero better so it is clear it
combines with *. Restructured documentation.
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(stream_init): Change how put_line is registered to take advantage of
new optional parameter.
* txr.1: Updated.
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causing premature collection of the catenated stream list.
* stream.c (cat_mark): new function.
(cat_stream_ops): use cat_mark for gc mark function.
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re-binding. C code now has to go through the dynamic environment lookup
to access things like *random-state*, or *stdout*. As part of this,
I'm moving some intrinsic variable and function initializations out of
eval.c and into their respective modules. Macros are are used to make
global variables look like ordinary C variables. This is very similar
to the errno trick in POSIX threads implementations.
* eval.c (looup_var, lookup_var_l): Restructured to eliminate silly
goto, the cobjp handling is gone.
(reg_fun, reg_var): Internal function becomes external.
reg_var registers a simple cons cell binding now, without any
C pointer tricks to real C global variables.
(c_var_mark): Static function removed.
(c_var_ops): Static struct removed.
(eval_init): Numerous initializations for streams, syslog, rand,
signals and others moved to their respective modules.
The new symbol variables user_package_s, keyword_package_s
and system_package_s are interned here, and the variables are
created in a special way.
* eval.h (reg_var, reg_fun): Declared.
* gc.c (prot1): Added assert that the loc pointer isn't null.
This happened, and blew up during garbage collection.
* lib.c (system_package, keyword_package, user_package): Variables
removed these become macros.
(system_package_var, keyword_package_var, user_package_var): New
global variables.
(system_package_s, keyword_package_s, user_package_s): New
symbol globals.
(get_user_package, get_system_package, get_keyword_package): New
functions.
(obj_init): Protect new variables. Initialization order of modules
tweaked: the modules sig_init, stream_init, and rand_init are moved
after eval_init because they register variables.
* lib.h (keyword_package, system_pckage, user_package): Variables
turned into macros.
(system_package_var, keyword_package_var, user_package_var): Declared.
(system_package_s, keyword_package_s, user_package_s): Declared.
(get_user_package, get_system_package, get_keyword_package): Declared.
* rand.c (struct random_state): Renamed to struct rand_state to
avoid clash with new random_state macro.
(random_state): Global variable removed.
(random_state_s): New symbol global.
(make_state, rand32, make_random_state, random_fixnum, random):
Follow rename of struct random_state.
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means of -Werror=implicit-function-declarations. Fix broken mkdir and
mknod tests. Regenerate config.make if we add -U__STRICT_ANSI__
to the compiler options, so that later tests benefit from this.
Regenerate config.make right away if adding -D_DARWIN_C_SOURCE.
This allows the makedev test to pass.
* stream.c: Include <sys/types.h> for makedev.
(mknod_wrap): Don't rely on makedev wrappers to be there; test.
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return value.
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mkdir and mknod.
* eval.c (eval_init): Wrap #ifdefs around the registrations of
the wrappers for these functions.
* stream.c (mkdir_wrap): Wrap in #ifdef HAVE_MKDIR, and
provide a Windows version if HAVE_MKDIR is missing, but
HAVE_WINDOWS_H is true.
(makedev_wrap, major_wrap, minor_wrap): Wrap with #if HAVE_MAKEDEV.
(mknod): Use #if HAVE_MKNOD.
(symlink_wrap, link_wrap, readlink_wrap): Wrap with #if HAVE_SYMLINK.
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* stream.c (symlink_wrap, link_wrap, readlink_wrap): New functions.
* stream.h (symlink_wrap, link_wrap, readlink_wrap): Declared.
* txr.1: Documented.
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Register mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap, minor_wrap,
major_wrap and mknod_wrap.
* stream.c (mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap,
minor_wrap, major_wrap, mknod_wrap): New functions.
(stream_init): Initialize forgotten variable s-ifsock.
* stream.h (s_ifsock): Declared.
(mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap,
minor_wrap, major_wrap, mknod_wrap): Declared.
* txr.1: Forgotten documentation for remove-path and rename-path
added. Forgotten mention of s-ifsock. Documented new Unix functions.
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stream is not a string stream, but throw a proper error exception.
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with just using the == operator.
Removing cobj_equal_op since it's indistinguishable from eq.
Streamlining missingp and null_or_missing_p.
* eval.c (transform_op): eq to ==.
(c_var_ops): cobj_equal_op to eq.
* filter.c (trie_compress, trie_lookup_feed_char, filter_string_tree,
html_hex_continue, html_dec_continue): eq to ==.
* hash.c (hash_iter_ops): cobj_equal to eq.
* lib.c (countq, getplist, getplist_f, search_str_tree,
posq): eq to ==.
(cobj_equal_op): Function removed.
* lib.h (cobj_equal_op): Declaration removed.
(missingp): Becomes a simple macro that yields a C boolean instead
of t/nil val, because it's only used that way.
(null_or_missing_p): Becomes inline function returning int.
* match.c (v_output): eq to ==.
* rand.c (random_state_ops): cobj_equal_op to eq.
* regex.c (char_set_obj_ops, regex_obj_ops): cobj_equal_op to eq.
(reg_derivative): Silly if3 expression replaced by null.
(regexp): Redundant if2 expression wrapped around eq removed.
* stream.c (null_ops, stdio_ops, tail_ops, pipe_ops, string_in_ops,
byte_in_ops, string_out_ops, strlist_out_ops, dir_ops,
cat_stream_ops): cobj_equal_op to eq.
* syslog.c (syslog_strm_ops): cobj_equal_op to eq.
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* eval.c (eval_init): Change registration for open_file, open_tail
and open_command.
* stream.c (open_file, open_tail, open_command): mode_str argument
defaulted.
* txr.1: Updated.
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seek_to_end_p argument being ignored, with the
behavior being no initial seek to the end.
* txr.1: Clarified the behavior of the seek-to-end-p
option.
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* eval.c (apply): Unconditionally use colon_k for missing optional
args, for intrinsic functions.
(eval_intrinsic, rangev, rangev_star, errno_wrap): Conform to new
scheme for defaulting optional args.
(reg_fun_mark): Function removed.
(eval_init): Switch reduce_left and reduce_right back to reg_fun
registration.
* hash.c (gethash_n): Conform to new scheme for defaulting optional
arguments.
* lib.c (sub_list, replace_list, remove_if, keep_if, remove_if_lazy,
keep_if_lazy, tree_find, count_if, some_satisfy, all_satisfy,
none_satisfy, search_str, match_str, match_str_tree, sub_str,
replace_str, cat_str, tok_str, intern, rehome_sym, sub_vec,
replace_vec, lazy_str, sort, multi_sort, find, find_if, set_diff,
obj_print, obj_pprint): Conform to new scheme for defaulting optional
arguments.
(func_f0, func_f1, func_f2, func_f3, func_f4, func_n0, func_n1,
func_n2, func_n3, func_n4, func_n5, func_n6, func_n7, func_f0v,
func_f1v, func_f2v, func_f3v, func_f4v, func_n0v, func_n1v,
func_n2v, func_n3v, func_n4v, func_n5v, func_n6v, func_n7v):
Remove references to removed mark_missing_args member of struct func.
(func_set_mark_missing): Function removed.
(generic_funcall): Unconditionally use colon_k for missing optional
args, for intrinsic functions.
* lib.h (struct func): mark_missing_args member removed.
(func_set_mark_missing): Declaration removed.
(default_arg, default_bool_arg): New inline functions.
* rand.c (random): Left argument is not optional.
(rnd): Conform to new scheme for defaulting optional arguments.
* regex.c (search_regex, match_regex): Conform to new scheme for
defaulting optional arguments.
* stream.c (unget_char, unget_byte, put_string, put_char, put_byte,
put_line): Conform to new scheme for defaulting optional arguments.
* syslog.c (openlog_wrap): Conform to new scheme for defaulting
optional arguments.
* txr.1: Remove the specification that nil is a sentinel value in
default arguments, where necessary. Use consistent syntax for
specifying variable parts in argument lists. A few errors and omissions
addressed.
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intrinsic.
* stream.c (cat_get_line, cat_get_char, cat_get_byte): Do not
remove the last stream from the stream list, so that there is
some stream object there which can take the unget-char or
unget-byte operations.
(cat_unget_byte, cat_unget_char): New static functions.
(cat_stream_ops): unget_char and unget_byte function pointers
filled in.
* txr.1: Documented catenated-streams.
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Moved mode member down.
(make_stdio_stream_common): Initialize is_rotated.
(tail_strategy): Substantially rewritten in order to address
a possible race condition, when a file is rotated.
The issue is that even when the file disappears, or when the file has
been replaced, we must continue reading from the old stream until the
end, and only then can we switch to the newly rotated file.
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* stream.h (remove_path, rename_path): Declared.
* utf8.c (w_remove, w_rename): New functions.
* utf8.h (w_remove, w_rename): Declared.
* eval.c (eval_init): Registered remove_path and rename_path
as intrinsics.
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that may have been put back with unget_char.
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* stream.c (null_ops, stdio_ops, tail_ops, pipe_ops,
string_in_ops, byte_in_ops, string_out_ops, strlist_out_ops,
dir_ops, cat_stream_ops): Structure definition updated
with new initializers for two new virtuals.
(stdio_handle): New member, unget_c.
(snarf_line, stdio_get_char): Handle pushed-back character in
h->unget_c.
(stdio_unget_char, stdio_unget_byte, string_in_unget_char,
byte_in_unget_byte): New static functions.
(make_stdio_stream_common): Initialize unget_c member.
(unget_char, unget_byte): New functions.
* stream.h (struct strm_ops): New virtuals: unget_char and unget_byte.
(unget_char, unget_byte): New functions declared.
* syslog.c (syslog_strm_ops): Two new initializers.
* eval.c (eval_init): Registered unget_char and unget_byte as
intrinsics.
* txr.1: Documented.
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virtual function is not null, rather than put_byte.
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in C headers which are extensions to standard C, like popen or fileno,
in response to standard feature selection macros like -D_POSIX_SOURCE.
MinGW and Cygwin are offenders. These platforms hide the declarations
when gcc is in -ansi mode, by testing for __STRICT_ANSI__. Turns out,
however, that -U__STRICT_ANSI__ on the gcc command line strips this
away, causing the declarations to be revealed.
* lib.c, parser.l, stream.c, utf8.c: Removed the declarations which
compensated for the above problem. Yippee! Fuck you, stupid Cygwin
troglodytes, and the MinGW horse you rode in on.
http://cygwin.com/ml/cygwin/2011-10/msg00131.html
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* stream.c (vformat): Fix incorrect code for normalizing
exponent fields in the output of sprintf's floating-point
conversion. For ~e, the logic would let through a leading zero.
For ~a/~s conversion, it was comparing to 0 instead of '0',
not squashing leading zeros at all.
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* Makefile: Use new EXE variable from config.mk.
* configure (exe, have_windows_h): New variables.
Handle situations with .exe suffix; on MiGW, the rm command
doesn't work on executables if the .exe suffix is not given.
New tests for localtime_r and gmtime_r.
* lib.c: Supply declarations which are missing on MinGW because
we use gcc -ansi, because MinGW doesn't follow established conventions
like -D_POSIX_SOURCE. Supply definitions for gmtime_r, localtime_r,
setenv and unsetenv.
* parser.l: Supply declarations which are missing on MinGW.
* signal.h (async_sig_enabled): Declare differently based on
HAVE_POSIX_SIGS.
Misspelled typedef fixed in the code for !HAVE_POSIX_SIGS
that has hitherto not been compiled.
(sig_mask): Wrap declaration in #ifdef HAVE_POSIX_SIGS because
it relies on sigset_t.
* stream.c: Supply declarations which are missing on MinGW.
Include <windows.h> if we have it.
(sleep): Define for Windows.
(statf): Handle missing st_blksize and st_blocks members in struct
stat.
(stream_init): Handle numerous missing S_* macros.
* utf8.c: Supply declarations which are missing on MinGW.
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whenever offset is zero, regardless of whence argument.
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New catenated streams make the Yacc hack possible.
* eval.c (eval_init): Register lisp_parse as intrinsic.
* parser.h (lisp_parse): Declared.
* parser.l: New lexical hack to produce SECRET_ESCAPE_E token.
(regex_parse): Move declaration before statements.
(lisp_parse): New function.
* parser.y (SECRET_ESCAPE_E): New token type.
(spec): New production rule for single expression.
* stream.c (cat_stream_print, cat_get_line, cat_get_char,
cat_get_byte, cat_get_prop): New static functions.
(cat_stream_ops): New static function.
(make_catenated_stream): New function.
* stream.h (make_catenated_stream): Declared.
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their name: some kind of string.
* stream.c (name_k): New variable.
(null_get_prop): New static function.
(null_ops): Wire null_get_prop into ops structure.
(stdio_get_prop): Report h->descr as name.
(string_in_get_prop): New function.
(string_in_ops): Wire string_in_get_prop into ops structure.
(stream_init): Initialize name_k.
* stream.h (name_k): Declared.
* syslog.c (syslog_get_prop): Report "syslog" as
stream name.
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* Makefile (OBJS-y): Include signal.o if have_posix_sigs is "y".
* configure (have_posix_sigs): New variable, set by detecting POSIX
signal stuff.
* dep.mk: Regenerated.
* arith.c, debug.c, eval.c, filter.c, hash.c, match.c, parser.y,
parser.l, rand.c, regex.c, syslog.c, txr.c, utf8.c: Include new
signal.h header, now required by unwind, and the <signal.h> system
header.
* eval.c (exit_wrap): New function.
(eval_init): New functions registered as intrinsics: exit_wrap,
set_sig_handler, get_sig_handler, sig_check.
* gc.c (release): Unused functions removed.
* gc.h (release): Declaration removed.
* lib.c (init): Call sig_init.
* stream.c (set_putc, se_getc, se_fflush): New static functions.
(stdio_put_char_callback, stdio_get_char_callback, stdio_put_byte,
stdio_flush, stdio_get_byte): Use new functions to enable
signals when blocked on I/O.
(tail_strategy): Allow signals across sleep.
(pipev_close): Allow signals across waitpid.
(se_pclose): New static function.
(pipe_close): Use new function to enable signals across pclose.
* unwind.c (uw_unwind_to_exit_point): use extended_longjmp instead of
longjmp.
* unwind.h (struct uw_block, struct uw_catch): jb member changes from
jmp_buf to extended_jmp_buf.
(uw_block_begin, uw_simple_catch_begin, uw_catch_begin): Use
extended_setjmp instead of setjmp.
* signal.c: New file.
* signal.h: New file.
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include <assert.h> since none of these modules uses the standard C
assert macro.
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Fixing some errors in copyright comments.
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stream_get_prop and stream_set_prop as intrinsics.
* stream.c (stream_get_prop): New function.
* stream.h (stream_get_prop): Declared.
* syslog.c (syslog_get_prop): Bugfix: check for prio_k not real_time_k.
* txr.1: Updated.
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* Makefile: Use -iquote to restrict our #include search paths from
being processed for #include <...>. Add syslog.o to OBJS-y if
have_syslog is y.
* configure (have_syslog): New variable, set by detecting syslog API.
* eval.c (eval_init): logand and logior registrations changed to
go to variadic versions. New syslog variables and functions registered.
* lib.c (logandv, logiorv): New functions.
* lib.h (logandv, logiorv): Declared.
* txr.c (main): Call syslog_init.
* syslog.c: New file.
* syslog.h: New file.
* txr.1: Updated.
* txr.vim: Regenerated.
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