-;;;; This file contains things for the extensions package which can't
-;;;; be built at cross-compile time, and perhaps also some things
-;;;; which might as well not be built at cross-compile time because
-;;;; they're not needed then. Things which can't be built at
-;;;; cross-compile time (e.g. because they need machinery which only
-;;;; exists inside SBCL's implementation of the LISP package) do not
-;;;; belong in this file.
+;;;; This file contains things for the extensions packages (SB-EXT and
+;;;; also "internal extensions" SB-INT) which can't be built at
+;;;; cross-compile time, and perhaps also some things which might as
+;;;; well not be built at cross-compile time because they're not
+;;;; needed then. Things which can't be built at cross-compile time
+;;;; (e.g. because they need machinery which only exists inside SBCL's
+;;;; implementation of the LISP package) do not belong in this file.
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;; provided with absolutely no warranty. See the COPYING and CREDITS
;;;; files for more information.
-(in-package "SB!EXT")
+(in-package "SB!IMPL")
+\f
+;;;; variables related to saving core files
+;;;;
+;;;; (Most of the save-a-core functionality is defined later, in its
+;;;; own file, but we'd like to have these symbols declared special
+;;;; and initialized ASAP.)
-(file-comment
- "$Header$")
+(defvar *before-save-initializations* nil
+ #!+sb-doc
+ "This is a list of functions which are called before creating a saved core
+ image. These functions are executed in the child process which has no ports,
+ so they cannot do anything that tries to talk to the outside world.")
-;;; INDENTING-FURTHER is a user-level macro which may be used to locally
-;;; increment the indentation of a stream.
-(defmacro indenting-further (stream more &rest body)
+(defvar *after-save-initializations* nil
#!+sb-doc
- "Causes the output of the indenting Stream to indent More spaces. More is
- evaluated twice."
- `(unwind-protect
- (progn
- (incf (sb!impl::indenting-stream-indentation ,stream) ,more)
- ,@body)
- (decf (sb!impl::indenting-stream-indentation ,stream) ,more)))
+ "This is a list of functions which are called when a saved core image starts
+ up. The system itself should be initialized at this point, but applications
+ might not be.")
+\f
+;;;; miscellaneous I/O
(defun skip-whitespace (&optional (stream *standard-input*))
(loop (let ((char (read-char stream)))
(unless (sb!impl::whitespacep char)
(return (unread-char char stream))))))
+;;; like LISTEN, but any whitespace in the input stream will be flushed
(defun listen-skip-whitespace (&optional (stream *standard-input*))
- #!+sb-doc
- "See LISTEN. Any whitespace in the input stream will be flushed."
(do ((char (read-char-no-hang stream nil nil nil)
(read-char-no-hang stream nil nil nil)))
((null char) nil)
- (cond ((not (sb!impl::whitespace-char-p char))
+ (cond ((not (whitespace-char-p char))
(unread-char char stream)
(return t)))))
+\f
+;;;; helpers for C library calls
+
+;;; Signal a SIMPLE-CONDITION/ERROR condition associated with an ANSI C
+;;; errno problem, arranging for the condition's print representation
+;;; to be similar to the ANSI C perror(3) style.
+(defun simple-perror (prefix-string
+ &key
+ (errno (get-errno))
+ (simple-error 'simple-error)
+ other-condition-args)
+ (declare (type symbol simple-error))
+ (aver (subtypep simple-error 'simple-condition))
+ (aver (subtypep simple-error 'error))
+ (apply #'error
+ simple-error
+ :format-control "~@<~A: ~2I~_~A~:>"
+ :format-arguments (list prefix-string (strerror errno))
+ other-condition-args))
projects / sbcl.git / blobdiff