From 8de1ee1b2b676b0d07586f0752750dd6b0fb7511 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 11:59:15 +0200 Subject: Adding upstream version 2.2.27. Signed-off-by: Daniel Baumann --- tests/gpgscm/ffi.scm | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 tests/gpgscm/ffi.scm (limited to 'tests/gpgscm/ffi.scm') diff --git a/tests/gpgscm/ffi.scm b/tests/gpgscm/ffi.scm new file mode 100644 index 0000000..051c2c2 --- /dev/null +++ b/tests/gpgscm/ffi.scm @@ -0,0 +1,51 @@ +;; FFI interface for TinySCHEME. +;; +;; Copyright (C) 2016 g10 Code GmbH +;; +;; This file is part of GnuPG. +;; +;; GnuPG is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 3 of the License, or +;; (at your option) any later version. +;; +;; GnuPG is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. +;; +;; You should have received a copy of the GNU General Public License +;; along with this program; if not, see . + +;; Foreign function wrapper. Expects F to return a list with the +;; first element being the `error_t' value returned by the foreign +;; function. The error is thrown, or the cdr of the result is +;; returned. +(define (ffi-apply name f args) + (let ((result (apply f args))) + (cond + ((string? result) + (ffi-fail name args result)) + ((not (= (car result) 0)) + (ffi-fail name args (strerror (car result)))) + ((and (= (car result) 0) (pair? (cdr result))) (cadr result)) + ((= (car result) 0) '()) + (else + (throw (list "Result violates FFI calling convention: " result)))))) + +(define (ffi-fail name args message) + (let ((args' (open-output-string))) + (write (cons (string->symbol name) args) args') + (throw (get-output-string args') message))) + +;; Pseudo-definitions for foreign functions. Evaluates to no code, +;; but serves as documentation. +(macro (ffi-define form)) + +;; Runtime support. + +;; Low-level mechanism to terminate the process. +(ffi-define (_exit status)) + +;; Get the current time in seconds since the epoch. +(ffi-define (get-time)) -- cgit v1.2.3