This works even if another thread or process resets the resource limit
for open file descriptors, e.g., using 'prlimit' on GNU/Linux.
* src/process.c (create_process, create_pty, Fmake_pipe_process)
(Fmake_serial_process, connect_network_socket)
(server_accept_connection): Limit file descriptors to FD_SETSIZE.
* test/src/process-tests.el (process-tests--with-raised-rlimit): New
helper macro.
(process-tests--fd-setsize-test): Rename from
'process-tests--with-many-pipes'. Increase resource limit during test
if possible.
(process-tests/fd-setsize-no-crash/make-process)
(process-tests/fd-setsize-no-crash/make-pipe-process)
(process-tests/fd-setsize-no-crash/make-network-process)
(process-tests--new-pty): Rename callers.
* test/src/process-tests.el
(process-tests/fd-setsize-no-crash/make-process): Allow special exit
codes that can happen if terminal setup fails in the child process.
Instead of trying to generate the right number of processes,
pre-create lots of unused pipe processes until creation fails. Extend
the tests to the 'pty' connection type and other kinds of process
objects.
* test/src/process-tests.el (process-tests--ignore-EMFILE)
(process-tests--with-buffers, process-tests--with-processes)
(process-tests--with-many-pipes, process-tests--with-temp-file)
(process-tests--with-temp-directory): New helper macros.
(process-tests/fd-setsize-no-crash/make-process): Renamed from
'process-tests/fd-setsize-no-crash'. Fail on timeout. Also test the
'pty' connection type. Pre-create lots of pipe processes so we reach
the FD_SETSIZE limit faster. Ignore EMFILE more precisely, if
possible.
(process-tests/fd-setsize-no-crash/make-pipe-process)
(process-tests/fd-setsize-no-crash/make-network-process)
(process-tests/fd-setsize-no-crash/make-serial-process): New tests
that test FD_SETSIZE limits for other kinds of processes.
(process-tests--EMFILE-message): New helper function and cache
variable.
(process-tests--new-pty): New helper function.
* lisp/progmodes/xref.el (xref-file-name-display): Document new value.
(xref-location-group ((l xref-file-location))): Handle the new value.
(xref--project-root): Extract from the default method of
'xref-backend-references' so it can be used in above's new code.
Also fix an old bug in the "backward compat" branch.
* lisp/progmodes/xref.el (xref--project-root-memo): New variable.
* test/lisp/progmodes/xref-tests.el: Add test cases for the three
possible settings of 'xref-file-name-display'.
Co-authored-by: Tobias Rittweiler <trittweiler@gmail.com>
* test/lisp/progmodes/xref-tests.el (xref-tests-data-dir):
Rename to 'xref-tests--data-dir'.
(xref-tests--matches-in-data-dir, xref-tests--locations-in-data-dir):
New functions. Factored out from test cases and updated usage sites
to use them.
* src/w32.c (pipe2): When forcibly closing pipe handles due to
overflow of FD_SETSIZE, set the handles to -1, to avoid assertion
violations in emacs_close.
* test/src/process-tests.el (process-tests/fd-setsize-no-crash):
No need to skip this test anymore.
* test/src/process-tests.el (process-tests/fd-setsize-no-crash):
Skip this test on windows-nt systems, as we cannot use more than
FD_SETSIZE file descriptors there: if we try, we crash.
* lisp/emacs-lisp/comp.el (comp-emit-assume): Update.
(comp-known-predicate-p): New function.
(comp-add-cond-cstrs): Extend to pattern match predicate calls.
* lisp/emacs-lisp/comp-cstr.el (comp-cstr-null-p)
(comp-pred-to-cstr): New function.
* test/src/comp-tests.el (comp-tests-type-spec-tests): Add a
number of tests and fix comments.
* doc/misc/trampver.texi:
* lisp/net/trampver.el: Change version to "2.5.0".
* test/lisp/net/tramp-tests.el
(tramp--test--deftest-direct-async-process): Check, that
`make-process' supports file name handlers. Suppress
`internal-default-process-sentinel'.
(tramp--test-async-shell-command): Set `proc' proper.
(tramp-test32-shell-command-direct-async): Tag it :unstable.
* doc/lispref/strings.texi (Custom Format Strings): Document it.
* lisp/format-spec.el (format-spec): Add an optional parameter to
return a list of strings (bug#33740).
* test/lisp/emacs-lisp/package-tests.el
(package-test-list-filter-by-name, package-test-list-clear-filter):
Use ansi-color instead of tetris, which no longer has a version:.
* src/lisp.h (struct Lisp_Subr): Add 'type' field.
(SUBR_TYPE): New inline accessor.
* src/pdumper.c (dump_subr): Update for 'type' field.
* src/data.c (Fsubr_type): New primitive.
(syms_of_data): Update.
* src/comp.c (ABI_VERSION): Bump new ABI version.
(make_subr): Set type.
(Fcomp__register_lambda, Fcomp__register_subr)
(Fcomp__late_register_subr): Receive and pass subr type to
'make_subr'.
* src/alloc.c (mark_object): Mark subr type.
* lisp/emacs-lisp/comp.el (comp-func): Change slot type into mvar.
(comp-emit-for-top-level, comp-emit-lambda-for-top-level): Pass
type mvar to subr register functions.
(comp-compute-function-type): Fix-up subr type mvars.
* test/src/comp-tests.el (comp-tests-check-ret-type-spec): Use
`subr-type'.
* lisp/emacs-lisp/comp.el (comp-fwprop-call): Propagate functions
also when called under `funcall'.
* test/src/comp-tests.el (comp-tests-type-spec-tests): Add a test.
* lisp/emacs-lisp/comp.el (comp-func): `type' rename from
`ret-type-specifier'.
(comp-args-to-lambda-list): New function.
(comp-compute-function-type): New function from
`comp-ret-type-spec'.
(comp-final): Update.
* test/src/comp-tests.el (comp-tests-check-ret-type-spec): Update.
* lisp/emacs-lisp/comp-cstr.el (comp-cstr-one): New special var.
* lisp/emacs-lisp/comp.el (comp-fwprop-call): Propagate integer
ranges on +1 -1.
* test/src/comp-tests.el (comp-tests-type-spec-tests): Add two tests.
* lisp/emacs-lisp/find-func.el (find-function-search-for-symbol): If
our regexp algorithm could not find a location for the symbol
definition, resort to find-function--search-by-expanding-macros.
* test/lisp/emacs-lisp/find-func-tests.el: Add a automatic test for a
function and variable generated by a macro.
* etc/NEWS: Advertise the improved functionality (bug#45443).
* doc/lispref/sequences.texi (Sequence Functions): Document them.
* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns): Mark them as
side-effect-free.
* lisp/emacs-lisp/shortdoc.el (list): Mention them.
* src/fns.c (Flength): Mention them in the doc string.
(length_internal): New function.
(Flength_less, Flength_greater, Flength_equal): New defuns.
(syms_of_fns): Sym them.
* lisp/emacs-lisp/comp-cstr.el (comp-cstr-set-cmp-range)
(comp-cstr->, comp-cstr->=, comp-cstr-<, comp-cstr-<=): New
functions.
* lisp/emacs-lisp/comp.el (comp-equality-fun-p)
(comp-range-cmp-fun-p): New functions.
(comp-collect-rhs): Use `comp-assign-op-p' in place of
`comp-set-op-p'.
(comp-negate-range-cmp-fun, comp-reverse-cmp-fun): New functions.
(comp-emit-assume): Rework to be able to emit also comparision
assumption.
(comp-add-cond-cstrs-simple): Update for new `comp-emit-assume'.
(comp-add-cond-cstrs-simple): Update to emit range assumption.
(comp-fwprop-insn): Execute range assumptions.
* test/src/comp-tests.el (comp-tests-type-spec-tests): Add tests.
Such filenames are dangerous, as Emacs would silently only use the
part up to the first NUL byte. Reject them explicitly instead.
* src/coding.c (encode_file_name_1): New helper function.
(encode_file_name): Check that encoded filename doesn't contain a
NUL byte.
(syms_of_coding): Define 'filenamep' symbol.
* test/src/fileio-tests.el (fileio-tests/null-character): New unit
test.
* etc/NEWS: Document change.
