russell@unturf.com
f7352b51b0
Historical internal name "uncommonlisp" retired in favor of the
public name "lumbda" ahead of lumbda.com going live. Scope of
this commit:
Source files renamed:
uncommonlisp.py -> lumbda.py
asm/uncommonlisp.s -> asm/lumbda.s
c/uncommonlisp.h -> c/lumbda.h
whitepaper/uncommonlisp-whitepaper -> whitepaper/lumbda-whitepaper (.rst + .pdf)
Binaries renamed (tracked ones; c/ was always gitignored):
asm/uncommonlisp, asm/uncommonlisp-gc, asm/uncommonlisp.o,
asm/uncommonlisp-gc.o -> asm/lumbda(-gc)(.o)
c/.gitignore -> ignores lumbda
Internal string updates (sed pass ordered longest-first):
asm/uncommonlisp -> asm/lumbda
c/uncommonlisp -> c/lumbda
uncommonlisp.py -> lumbda.py
UNCOMMONLISP_BIN -> LUMBDA_BIN (asm/test.sh env var)
"uncommonlisp> " -> "lumbda> " (asm REPL prompt baked into binary)
UNCOMMONLISP -> LUMBDA (macros, comments)
uncommonlisp -> lumbda (prose)
Binary portal magic updated:
"ULPORTAL" -> "LUMBDAB1" # "Lumbda Binary v1"
Old portal files are not backward-compatible — this is a deliberate
break since it's the rename moment. S-expression portals already
carry their own ";; lumbda-portal v1" header and remain cleanly
versioned.
WHITEPAPER.pdf / WHITEPAPER.rst symlinks repointed to the renamed
files. Makefile's whitepaper target targets lumbda-whitepaper.pdf.
Not changed (intentional, separate phases):
- Filesystem directory /home/fox/git/uncommonlisp itself
(fox renames locally and the gitlab repo URL in a follow-up)
- tests.py hardcoded cwd=/home/fox/git/uncommonlisp
(matches the current on-disk location; will flip when the
directory rename ships)
- Git history (immutable; old commits still say uncommonlisp,
which is correct — that's what they were)
Verified:
137 asm no-GC + 137 asm GC + 571 Python + 83 C + 189 shared
functional tests all pass under the new names.
bench-gc-http (2000 req): all 4 cells behave as expected
(cells 1/2 flat, 3 leaks, 4 bounded at 1 chunk).
Python REPL, C REPL, asm REPL all start cleanly.
87 lines
3.3 KiB
Text
87 lines
3.3 KiB
Text
;;; repl-server.lsp — REMOTE SCHEME REPL OVER TCP.
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;;;
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;;; DANGER: this accepts ANY S-expression from the network and evaluates
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;;; it in the global environment. Anyone who can reach the TCP port can
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;;; run arbitrary Scheme code in this process — read files, open sockets,
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;;; shell out via system calls if any are exposed, leak the env, etc.
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;;;
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;;; Run on localhost only. Do not expose publicly. This exists to show
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;;; what the "language IS the interchange" thesis gets you when taken
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;;; to its logical end: a single socket carries a full-powered REPL
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;;; because both sides already have a reader and an evaluator.
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;;;
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;;; Usage:
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;;; python3 lumbda.py --fast examples/repl-server.lsp
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;;; ./c/lumbda examples/repl-server.lsp
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;;; ./asm/lumbda < examples/repl-server.lsp
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;;;
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;;; Then from a client:
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;;; (define x 42) ; server mutates its global env
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;;; (* x 10) ; => 420
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;;; (map car '((1 a) (2 b))) ; => (1 2)
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;;;
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;;; Each connection = one request + one response. Persistent sessions
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;;; across connections because all defines land in the shared global env.
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(define *port* 9081)
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(define *max-requests* 10000)
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;; Portable serializer — same as rpc-server.lsp pattern.
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;; Avoids open-output-string and `guard` (neither exists in asm).
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(define (atom->string v)
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(cond
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((number? v) (number->string v))
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((symbol? v) (symbol->string v))
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((null? v) "()")
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((pair? v) (string-append "(" (list->string v) ")"))
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((string? v) (string-append "\"" v "\""))
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(else "#<unknown>")))
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(define (list->string lst)
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(cond
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((null? lst) "")
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((null? (cdr lst)) (atom->string (car lst)))
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(else (string-append (atom->string (car lst)) " " (list->string (cdr lst))))))
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(define (response->string v)
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(cond
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((number? v) (string-append (number->string v) "\n"))
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((symbol? v) (string-append (symbol->string v) "\n"))
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((null? v) "()\n")
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((pair? v) (string-append "(" (list->string v) ")\n"))
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((string? v) (string-append "\"" v "\"\n"))
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(else "#<unknown>\n")))
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(define (handle-request raw)
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(let ((form (read-from-string raw)))
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(if (eqv? form #f)
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"(error \"empty or malformed input\")\n"
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(response->string (eval form)))))
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(define server (tcp-listen *port*))
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;; Intentionally does NOT use heap-snapshot. A remote `(define x ...)`
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;; adds a new binding to the global env chain — heap cells allocated
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;; AFTER any snapshot point. Rewinding would invalidate those bindings.
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;; The asm heap grows with each new top-level define; the ulimit -v
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;; safety net kills the process if it escapes. Each request still
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;; produces garbage (tcp-recv buffer, intermediate strings) that stays
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;; forever — acceptable for a demo, at ~100 bytes per request plus
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;; whatever `define` binds.
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(define (server-loop n)
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(if (>= n *max-requests*)
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(begin (display "request cap reached, exiting\n") (tcp-close server))
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(begin
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(let ((client (tcp-accept server)))
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(let ((req (tcp-recv client 8192)))
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(if (and req (> (string-length req) 0))
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(tcp-send client (handle-request req))
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#f))
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(tcp-close client))
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(server-loop (+ n 1)))))
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(display "repl-server on :") (display *port*)
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(display " — DANGER: full remote eval") (newline)
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(server-loop 0)
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