| Commit message (Collapse) | Author | Age | Files | Lines |
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* tests/014/socket-basic.tl: Test for :openbsd also
were we test for :bsd.
* tests/014/glob-carray.tl: Likewise.
* tests/017/glob-zarray.tl: Likewise.
* tests/017/mmap.tl: Likewise.
* tests/018/chmod.tl: Likewise.
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* tests/017/setjmp.tl: Solaris has libpng.so, but but some
version without png_set_longjmp_fn. We add a test for the
presence of this function as a precondition for running
the real test.
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Defining libpng bindings, with longjmp catching, is
now possible.
* autoload.c (ffi_set_entries): Add setjmp symbol, which is
a new macro in stdlib/ffi.tl.
* ffi.c (jmp_buf_s): New symbol variable.
(mk_jmp_buf, rt_setjmp, longjmp_wrap): New functions.
(ffi_init): Initialize jmp_buf_s. Register
sys:rt-setjmp and longjmp intrinsics.
* ffi.h (jmp_buf_s): Declared.
* stdlib/ffi.h (setjmp): New macro. Rather than introducing
a new special operator, we use a run-time support function
called sys:rt-setjmp, which takes functional arguments.
* unwind.[ch] (uw_snapshot, uw_restore): New functions.
The rt_setjmp function needs these to restore our unwind
frame stack into a sane state after catching a longjmp,
which bails without unwinding it, leaving the pointers
referring to frames that no longer exist.
* tests/017/setjmp.tl,
* tests/017/setjmp.expected: New files.
* txr.1: Documented.
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We've already taken care of imitating the situation that GNU
C allows __attribute__((aligned(n))) to weaken the alignment
of a bitfield, contrary to it being documented that align only
strengthens alignment. Even a value of n == 1 is meaningful
in that it can cause the bitfield to start allocating from
a new byte.
This patch corrects a newly discovered nuance: when a bitfield
is attributed with a weaker alignment than its underlying
type (e.g. uint32_t field marked with 2 byte alignment),
the original type's alignment is still in effect for calculating
the alignment of the structure, and the padding.
* ffi.c (struct txr_ffi_type): New member oalign, for keeping
track of the type's original alignment, prior to adjustment.
(make_ffi_type_struct): For a named bitfield, take the oalign
value into account when determining the most strict member
alignment.
(ffi_type_compile): When marking a type as aligned, the
we remember the original alignment in atft->oalign.
* tests/017/bitfields.tl: New test case, struct s16.
* txr.1: Documented.
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* ffi.c (make_ffi_type_struct): Add check for impossible condition.
The bits_alloc variable could only exceed bits_type (and thus
cause the room variable to have a nonsensical, large value)
if the bitfield allocation tried to continue allocating bits into
an aligned unit, whose alignment exceeds the size of the underlying
type. But in that case, tft->aligned would have to be true, and
so the offset would have been aligned prior to this code, rendering
bits_alloc zero.
* tests/017/bitfields.tl: New tests.
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The bitfield allocation rules are wrong. Some of it is due
to the recent changes which are based on incorrect analysis,
but reverting things doesn't fix it.
The idea that we compare the current member's alignment
with the previous is wrong; it is not borne out by empirical
tests with gcc. So we do a straight revert of that.
In GNU C, an __attribute__((aligned (N))) attribute applied
to a bitfield member will perform the requested alignment if,
evidently, the bit field is already being placed into a new
byte. (If the bit field is about to be packed into an existing
byte, then there is a warning about the align attribute being
ignored). Because we don't have alignment as a member attribute,
but only as a type attribute, we must implement a flag which
indicates that a type has had align applied to it (even if
the alignment didn't change) so we can then honor this in the
right place in the bitfield allocation code.
* ffi.c (struct txr_ffi_type): New attribute flag, aligned.
(make_ffi_type_struct): Remove the prev_align variable and
all related logic. Consolidate all alignment into one place,
which is done before we allocate the bitfield or regular member.
We align if the new member isn't a bitfield, or even if it is
a bitfield if it has the aligned attribute, or if the bitfield
is changing endian compared to the previous member (our local
rule, not from GNU C).
(ffi_type_compile): The align and pack operators now set the
aligned attribute, except in the (pack 1 ...) case which
semantically denotes lack of alignment.
* tests/017/bitfields.tl: New file.
* txr.1: Documented.
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* ffi.c (ffi_flex_struct_in): Function renamed to ffi_flex_array_len,
because its responsibility is determining the length of a flexible
array that is not null terminated. We don't pass in the structure's
type's descriptor any more, but the member descriptor.
(ffi_struct_in, ffi_struct_get): Follow rename and changed parameter
conventions.
* tests/017/flexstruct.tl: Added test case with nested flexible
structure.
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* ffi.c (ffi_flex_struct_in): Check for the last member being
an array, and not null-terminated. We now check the character
conversion disposition of the array. If it has character
conversion, then we store the length right into the slot that
will become the string. In the no-conversion case, we assume
that if the member exists, it's a vector we can resize.
Otherwise we plant a vector of the required size.
(ffi_varray_put): Only call ffi_varray_dynsize if the Lisp
object is a vector. If the Lisp objecct is a number, then use
that as the size. Otherwise the size is zero.
* tests/017/flexstruct.tl: New file.
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* ffi.c (ffi_transform_pack): Fix: return the original syntax in
the situation when no cases are recognized, rather than
the cdr of the syntax. When the struct/union syntax has no
members, return the original syntax to indicate no transformation
took place.
* txr.1: Document the feature that pack on a typedef name or struct
name with no members will do the alignment adjustment only, without
the syntactic transformation.
* tests/017/pack-align.tl: New file.
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* ffi.c (make_ffi_type_struct, make_ffi_type_union): Initialize
most_align local variable to 1, so the lower bound of alignment
is that, rather than zero.
* tests/017/ffi-misc.tl: Tests added.
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* ffi.c (struct txr_ffi_type): Replace unsigned mask member
with a union m which holds unsigned mask and 64-bit fmask (fat
mask).
(ffi_sbit_put, ffi_sbit_get, ffi_ubit_put, ffi_ubit_get):
Refer to m.mask.
(ffi_fat_sbit_put, ffi_fat_sbit_get, ffi_fat_ubit_put,
ffi_fat_ubit_get): New static functions.
(ffi_generic_fat_sbit_put, ffi_generic_fat_sbit_get,
ffi_generic_fat_ubit_put, ffi_generic_fat_ubit_get):
Likewise.
(make_ffi_type_struct, make_ffi_type_union): Set up fat
mask for bitfields that are wider than int.
(ffi_type_compile): Refer to m.mask for the int and unsigned
int based bitfields declared with sbit and ubit that don't
mention a type. The bit operator now allows int64 and uint64
to be valid types for a bitfield. In this case, the "fat"
get and put functions are selected which use 64 bit operations.
Thus there is no efficiency impact on non-fat bitfields which
continue to use code with 32 bit operands.
(ffi_offsetof): Use the bitfield flag in the member's type
structure to detect bitfields, rather than the mask.
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Because the varray behavior for undimensioned arrays was introduced
in dubious commit 7880c9b565ab438e1bf0250a967acdbf8d04cb42
in 2017, which used make_ffi_type_pointer to register the type,
claiming that the C representation is pointer (which was not true
in that commit, nor ever since).
As a result, though, undimensioned arrays received the alignment
of pointers, rather than deriving it from the element type.
Thus (array char) has 4 or 8 byte alignment whereas (array 4 char)
correctly has 1 byte alignment.
* ffi.c (ffi_type_compile): Use make_ffi_type_array for the two-element
array syntax, just like for the dimensioned case with three elements.
Then override some of the functions with the varray versions.
* tests/017/ffi-misc.tl: Fix the test case which exposed this.
In the type (struct flex (a char) (b (zarray char)), the array
b must be at offset 1. I didn't notice that the offset of 4
being confirmed by the test case was wrong, but this showed up
when running the test case on a platform with 8 byte pointers.
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* tests/017/ffi-misc.tl: Fix incorrect test whose loop body
does not execute. A remaining issue here is why the diagnostics
about unbound functions and variables in the loop body get
swept under the rug.
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* ffi.c (ffi_char_array_get, ffi_zchar_array_get, ffi_wchar_array_get,
ffi_bchar_array_get): Rearrange so that we test for tft->null_term
first, and not nelem == 0. If nelem happens to be zero, but we are
supposed to decode a null-terminated string, we will do the wrong
thing and return the null string.
(ffi_varray_in): The body can't be conditional on vec being non-nil,
because then we do nothing if we don't have a Lisp object, which means
we skip the cases when we should decode a null-terminated array.
Now if vec is nil, we must guard against calling ffi_varray_dynsize.
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* tests/017/str-s.tl: Use (libc) not nil in with-dyn-lib.
* tests/018/forkflush.tl: On Cygwin, produce canned output for first
test case, because the real test case produces some DOS line endings
that cause a mismatch.
* tests/019/load-search.tl: Skip test case involving a directory
with bad permissions being in the load search path.
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These types actually make it possible to receive a string by
pointer from a C function, without trying to free it.
It is now possible to write a FFI wrapper for strtol or
wcstol, which is done in the new test case.
* ffi.c (str_s_s, bstr_s_s, wstr_s_s): New symbol variables.
(ffi_init_types): Register the types str-s, bstr-s and wstr-s.
(ffi_init): Intern the new symbols.
* tests/017/str-s.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* eval.c (eval_init): copy-cptr intrinsic registered.
* lib.c (copy_cptr): New function.
(copy): Use copy_cptr for CPTR objects.
* lib.h (copy_cptr): Declared.
* tests/017/ffi-misc.tl: New test cases.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* ffi.c (carray_replace): In the case when we replace a larger
range by a smaller one, when the upper part of the aray shifts
down, we are not correctly clearing to zeros the vacated part
of the array. The variable whole is a displacement from the
base of the array, not from ptr. Secondly, the copying loop
must go rom fr to below sn, not below vn; sn is derived from
vn but truncated not to go past the array.
* tests/017/carray.tl: New file. Several cases here fail
before this fix.
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* ffi.c (ffi_type_copy): Function moved earlier in file
without change.
(ffi_type_copy_new_ops): New stati function.
(make_ffi_type_enum): Do not create a new type object using
cobj; copy the existing base_type, and then tweak its
properties, just like what is done with bool. Thus if
base_type is a bitfield, the enum will be a bitfield.
Add check against doign this to anything but an FFI_KIND_NUM,
with the awareness that this does include floating-point types.
Since tft is now a copy, we no longer have to copy a number of
things from btft. We do set he kind field to FFI_KIND_ENUM.
(ffi_type_compile): In the two bitfield cases, we now
calculate the mask field for the bitfield type (leaving the
shift at zero). The struct or union type into which the
bitfield is embedded will still re-calculate this.
The reason is that when an (enumed (bit ...) ...) type is
defined, it constructs hash tables for converting between the
symbolic and numeric values. It calls the put function of the
underlying type to test whether each enumeration value can be
converted (i.e. is in range). So the bitfield type must have a
valid mask at that time, or else it will reject every nonzero
value as being out of range for the bitfield. I'm also
replacing the max_int variable with bits_int. Since bitfields
are restricted to no wider than int, why pretend?
* tests/017/ffi-misc.tl: New test cases.
* txr.1: Documented.
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Reported by Paul A. Patience.
* ffi.c (make_ffi_type_enum): Do not use the cnum native type
for doing the member value calculations. Work with Lisp
numbers, and verify their range by passing them into the put
function of the underlying integer type. Duplicated code is
merged, too.
* tests/017/ffi-misc.tl: New tests. Two 64 bit ones fail
due to conversion bugs.
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* tests/017/mmap.tl: Use the new random-buf function instead
of converting pseudo-random bignums to a buffer.
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* tests/017/mmap.tl: The random buffer procedure can generate
buffers which are too small, because the random integer values
are anywhere from 0 to the modulus. This showed up up on
PPC-64 with 65536 byte pages.
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* tests/017/mmap.tl: On BSD, the map-anon test case where we
don't specify map-private or map-shared doesn't result in an
invalid argument error; a mapping is produced.
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* configure: configure test for mmap depositing HAVE_MMAP into
config.h.
* ffi.c (struct carray): Subject to HAVE_MMAP, new mm_len
member which keeps track of the size of an underlying mapping
so that we can unmap it, as well as peform operations like
msync on it.
(make_carray): Initialize mm_len to 0.
(MAP_GROWSDOWN, MAP_LOCKED, MAP_NORESERVE, MAP_POPULATE,
MAP_NONBLOCK, MAP_STACK, MAP_HUGETLB, MAP_SHARED, MAP_PRIVATE,
MAP_FIXED, MAP_ANON, MAP_HUGE_SHIFT, MAP_HUGE_MASK, PROT_READ,
PROT_WRITE, PROT_EXEC, PROT_NONE, PROT_GROWSDOWN,
PROT_GROWSUP, MADV_NORMAL, MADV_RANDOM, MADV_SEQUENTIAL,
MADV_WILLNEED, MADV_DONTNEED, MADV_FREE, MADV_REMOVE,
MADV_DONTFORK, MADV_DOFORK, MADV_MERGEABLE, MADV_UNMERGEABLE,
MADV_HUGEPAGE, MADV_NOHUGEPAGE, MADV_DONTDUMP, MADV_DODUMP,
MADV_WIPEONFORK, MADV_KEEPONFORK, MADV_HWPOISON, MS_ASYNC,
MS_SYNC, MS_INVALIDATE): #define as 0 if missing.
(carray_munmap_op): New static function.
(carray_mmap_ops): New static structure.
(mmap_wrap, munmap_wrap): New functions.
(mmap_op): New static function.
(mprotect_wrap, madvise_wrap, msync_wrap): New functions.
(ffi_init): Register mmap, munmap, mprotect, madvise and msync
as well as numerous integer variables: map-growsdown,
map-locked, map-noreserve, map-populate, map-nonblock,
map-stack, map-hugetlb, map-shared, map-private, map-fixed,
map-anon, map-huge-shift, map-huge-mask, prot-read,
prot-write, prot-exec, prot-none, prot-growsdown,
prot-growsup, madv-normal, madv-random, madv-sequential,
madv-willneed, madv-dontneed, madv-free, madv-remove,
madv-dontfork, madv-dofork, madv-mergeable, madv-unmergeable,
madv-hugepage, madv-nohugepage, madv-dontdump, madv-dodump,
madv-wipeonfork, madv-keeponfork, madv-hwpoison, ms-async,
ms-sync, ms-invalidate, page-size.
* ffi.h (mmap_wrap, munmap_wrap, mprotect_wrap madvise_wrap,
msync_wrap): Declared.
* tests/017/mmap.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* stdlib/ffi.c (sys:analyze-argtypes): Add missing fallback case in
filtering loop. This wouldn't have happened if we had a ecaseql macro,
and used it. Or if we had coverage of this in tests.
* tests/017/variadic.tl, tests/017/variadic.expected: New files.
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* tests/common.tl (os-symbol): Look for the substring BSD in
the system name, and map to symbol :bsd. Do not produce
the :openbsd symbol.
* tests/014/socket-basic.tl: Refer to :bsd, not :openbsd.
* tests/017/glob-carray.tl: Likewise.
* tests/018/chmod.tl: Likewise.
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* tests/002/query-1.txr: Skip test if an executable
/bin/sh doesn't exist, rather than the bogus reasons.
* tests/010/json.tl: Change the condition for the
command-put-json tests: not whether cat is found
in the search path but whether /bin/sh exists and is executable.
* tests/017/realpath.tl: Also quit if /usr/bin doesn't exist.
* tests/018/path-test.tl: Exit succesfully if /bin/sh
does not exist. Revert the earlier change.
* tests/018/process.tl: Quit if no executable /bin/sh exists.
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* tests/014/socket-basic.tl (%iters%): Also reduce to 2000 on
OpenBSD, to avoid the default limit on UDP datagram size.
* tests/017/glob-carray.tl: Use the BSD-style struct glob-t
on OpenBSD also.
* tests/017/glob-zarray.tl: Likewise.
* tests/018/chmod.tl (os): New global variable.
(test-sticky): s-isvtx not allowed for non-root user on
OpenBSD, so we falsify this variable.
* tests/common.tl (os-symbol): Add OpenBSD case, producing
:openbsd keyword symbol.
(libc): Let's just use (dlopen nil) for any platform that isn't
Cygwin or Cygnal.
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Makefile (%.expected): New implicit rule. Whenever a test requires a
.expected file, if it is missing, we create an empty one.
This file will be treated as an intermediate by GNU Make, which means
that it will be deleted when make terminates.
* tests/012/compile.tl: Some of the .tl files no longer have
an .expected file, so we have to test for that in the
catenating logic.
* tests/008/call-2.expected,
* tests/008/no-stdin-hang.expected,
* tests/011/macros-3.expected,
* tests/011/patmatch.expected,
* tests/012/aseq.expected,
* tests/012/ashwin.expected,
* tests/012/compile.tl,
* tests/012/cont.expected,
* tests/012/defset.expected,
* tests/012/ifa.expected,
* tests/012/oop-seq.expected,
* tests/012/parse.expected,
* tests/012/quasi.expected,
* tests/012/quine.expected,
* tests/012/seq.expected,
* tests/012/struct.expected,
* tests/012/stslot.expected,
* tests/014/dgram-stream.expected,
* tests/014/in6addr-str.expected,
* tests/014/inaddr-str.expected,
* tests/014/socket-basic.expected,
* tests/015/awk-fconv.expected,
* tests/015/split.expected,
* tests/015/trim.expected,
* tests/016/arith.expected,
* tests/016/ud-arith.expected,
* tests/017/ffi-misc.expected,
* tests/018/chmod.expected: Empty file deleted.
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* utf8.c (utf8_from_buffer): Fix incorrect backtracking logic
for handling bad UTF-8 bytes. Firstly, we are not backtracking
to the correct byte. Because src is incremented at the top of
the loop, the backtrack pointer must be set to src - 1 to
point to the possibly bad byte. Secondly, when we backtrack,
we are neglecting to rewinding nbytes! Thus after
backtracking, we will not scan the entire input. Let's avoid
using nbytes, and guard the loop based on whether we hit the
end of the buffer; then we don't have any nbytes state to
backtrack.
* tests/017/ffi-misc.tl: New test case converting a three-byte
UTF-8 encoding of U+DC01: an invalid character in the
surrogate range. We test that the buffer decoder turns this
into three characters, exactly like the stream decoder.
Another test case for invalid bytes following a valid
sequence start.
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* socket.c: Add missing #include <netinet/in.h>.
* tests/017/glob-carray.tl, tests/017/glob-zarray.tl:
Use same definition for struct glob as Cygwin.
Both are of BSD origin.
* tests/017/realpath.tl: Do not test on Android.
* tests/common.tl (os-symbol): Detect Android and return :android.
(libc): Handle :android.
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The undimensioned (array <type>) and (zarray <type>) types are
not doing UTF-8 conversion when <type> is char or zchar,
or doing what they are supposed to with the FFI character
types, which is inconsistent from their dimensioned
counterparts.
* ffi.c (ffi_varray_dynsize): if the element type is marked
for character conversion, then do the size calculation for
char and zchar by measuring the UTF-8 coded size.
(ffi_varray_alloc): Call ffi_varray_dynsize to get the size,
to benefit from the char handling. Thus when FFI allocates
buffers for a variable length array, it will allocate correct
size required for the UTF-8 encoded string.
(ffi_varray_put, ffi_varray_in): Here we must call
ffi_varray_dynsize and divide by the element type to get the
proper numer of elements. Then we must check for character
conversion and handle the cases.
(ffi_varray_null_term_in): Check for character conversion
cases and route those through ffi_varray_in, which handles
null-terminated strings.
* tests/017/ffi-misc.tl: New file.
* tests/017/ffi-misc.expected: New file.
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Among several issues, the main one is that these
test cases use the str-d FFI type for strings.
This type means that TXR will take ownership of the
memory; it creates the Lisp strings for the Lisp array,
and then assuming that it has owership of the C strings,
it will free them. On musl, this causes an instant crash,
probably because the strings might not be individually
coming from malloc. The only documented interface for
freing glob resources is globfree; programs cannot assume
that the strings can be freed.
* tests/017/glob-carray.expected: Updated.
* tests/017/glob-carray.tl (glob-t): Add missing flags member
of type int. Change the array element string type from str-d
to str.
* tests/017/glob-zarray.tl: Likewise, and also add a comment
to explain why we are not calling globfree in this test case.
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* tests/001/query-5.txr: New file.
* tests/001/query-5.expected: New file.
* Makefile (tst/tests/001/query-5.ok): Pass -B to txr for this
new test.
* tests/017/glob-carray.expected: Updated, because the glob
test globs over the contents of tests/001 directory.
* tests/017/glob-zarray.expected: Likewise.
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There is an issue with the printer in that it produces
output whereby objects continue on the same line after
a multi-line object, e.g:
(foo (foobly bar
xyzzy quux) (oops same
line))
rather than:
(foo (foobly bar
xyzzy quux)
(oops same line))
There is a simple fix for this: set a flag to force
a line break on the next width-check operation whenever
an object has been broken into multiple lines.
width-check can return a Boolean indication whether
it generated a line break, and so aggregate object
printing routines can tell whether their object
has been broken into lines, and set the flag.
* stream.h (struct strm_base): New member, force_break.
(force_break): Declared.
* stream.c (strm_base_init): Extent initializer to cover
force_break flag.
(put_string, put_char): Clear the force_break flag whenever
we hit column zero.
(width_check): If indent mode is on, and force_break is
true, generate a break. Clear force_break.
(force_break): New function.
(stream_init): Register force-break intrinsic.
* buf.c (buf_print): Set the force break flag if the buffer
was broken into multiple lines.
* hash.c (hash_print_op): Set the force break flag if the
hash was broken into multiple lines.
* lib.c (obj_print_impl): Same logic for lists.
* struct.c (struct_inst_print): Same logic for structs.
* tests/009/json.expected, tests/011/macros-2.expected,
tests/012/struct.tl, tests/017/glob-zarray.expected:
Update expected textual output to reflect new formatting.
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* tests/017/glob-carray.tl (glob-t): Restructure
to case statement. Add padding to struct based on
looking at the glibc definition. Add FFI definition
based on Cygwin header.
* tests/017/glob-zarray.tl (glob-t): Likewise.
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* tests/017/glob-carray.tl (glob-t): Initialize reserve
member to 0. Since it doesn't exist on Darwin, it will
stay nil, and change the the test output. A Darwin variant
of the corresponding FFI type is provided.
* tests/017/glob-zarray.tl (glob-t): Likewise.
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The realpath function is called using FFI. One approach
passes a null pointer, so that the function dynamically
allocates. The return value is str-d, causing FFI to take
ownership of the pointer, freeing it. The other approach
is to pass a pointer to a large null-terminated character
array, marked for ownership transfer to the function. FFI
allocates it and puts the argument into it, which is just
a dummy empty string. The function fills that buffer and
returns it. The return is captured as a str-d, so FFI takes
ownership back, and frees the buffer.
* tests/017/realpath.tl: New function.
* tests/017/realpath.expected: Likewise.
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One approach captures the paths as a carray of
strings, and explicitly frees it with globfree.
The other approach uses a zarray, taking advantage
of null termination. globfree is elided because TXR FFI
does the freeing; the types used declare to it that it
is taking ownership of a dynamically allocated vector of
dynamically allocated strings, and so it performs the
equivalent of globfree.
* tests/017/glob-carray.expected: New file.
* tests/017/glob-carray.tl: Likewise.
* tests/017/glob-zarray.expected: Likewise.
* tests/017/glob-zarray.tl: Likewise.
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* tests/017/qsort.expected: New file.
* tests/017/qsort.tl: New file.
* tests/common.tl (libc): New function.
* Makefile (tst/tests/017/%): Clear TXR_DBG_OPTS so the GC
stress test isn't applied to tests in this directory.
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