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Merge remote-tracking branch 'origin/stable-2.0'

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Mark H Weaver 2013-03-30 22:56:27 -04:00
commit 86cf4773ff
12 changed files with 217 additions and 201 deletions
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4
.gitignore vendored
View file

@ -152,3 +152,7 @@ INSTALL
/lib/wctype.h
/build-aux/ar-lib
/build-aux/test-driver
*.trs
/test-suite/standalone/test-smob-mark
/test-suite/standalone/test-scm-values
/test-suite/standalone/test-scm-to-latin1-string

21
configure.ac
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@ -761,7 +761,8 @@ AC_CHECK_FUNCS([DINFINITY DQNAN cexp chsize clog clog10 ctermid \
strcoll strcoll_l newlocale utimensat sched_getaffinity \
sched_setaffinity sendfile])
AM_CONDITIONAL([HAVE_FORK], [test "x$ac_cv_func_fork" = "xyes"])
AM_CONDITIONAL([BUILD_ICE_9_POPEN],
[test "x$enable_posix" = "xyes" && test "x$ac_cv_func_fork" = "xyes"])
# Reasons for testing:
# netdb.h - not in mingw
@ -1302,24 +1303,6 @@ if test $scm_cv_struct_linger = yes; then
getsockopt and setsockopt system calls.])
fi
# On mingw, struct timespec is in <pthread.h>.
#
AC_MSG_CHECKING(for struct timespec)
AC_CACHE_VAL(scm_cv_struct_timespec,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <time.h>
#if HAVE_PTHREAD_H
#include <pthread.h>
#endif]], [[struct timespec t; t.tv_nsec = 100]])],
[scm_cv_struct_timespec="yes"],
[scm_cv_struct_timespec="no"]))
AC_MSG_RESULT($scm_cv_struct_timespec)
if test $scm_cv_struct_timespec = yes; then
AC_DEFINE([HAVE_STRUCT_TIMESPEC], 1,
[Define this if your system defines struct timespec via either <time.h> or <pthread.h>.])
fi
#--------------------------------------------------------------------
#
# Flags for thread support

8
doc/ref/api-options.texi
View file

@ -1,6 +1,7 @@
@c -*-texinfo-*-
@c This is part of the GNU Guile Reference Manual.
@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011, 2012
@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
@c 2008, 2009, 2010, 2011, 2012, 2013
@c Free Software Foundation, Inc.
@c See the file guile.texi for copying conditions.
@ -281,6 +282,11 @@ Databases}).
Indicates support for POSIX functions: @code{pipe}, @code{getgroups},
@code{kill}, @code{execl} and so on (@pxref{POSIX}).
@item fork
Indicates support for the POSIX @code{fork} function (@pxref{Processes,
@code{primitive-fork}}). This is a prerequisite for the @code{(ice-9
popen)} module (@pxref{Pipes}).
@item random
Indicates availability of random number generation functions:
@code{random}, @code{copy-random-state}, @code{random-uniform} and so on

3
doc/ref/guile-invoke.texi
View file

@ -71,6 +71,9 @@ before any directories in the @env{GUILE_LOAD_PATH} environment
variable. Paths added here are @emph{not} in effect during execution of
the user's @file{.guile} file.
@item -C @var{directory}
Like @option{-L}, but adjusts the load path for @emph{compiled} files.
@item -x @var{extension}
Add @var{extension} to the front of Guile's load extension list
(@pxref{Load Paths, @code{%load-extensions}}). The specified extensions

3
doc/ref/posix.texi
View file

@ -2189,7 +2189,8 @@ controlling terminal. The return value is unspecified.
The following procedures are similar to the @code{popen} and
@code{pclose} system routines. The code is in a separate ``popen''
module:
module@footnote{This module is only available on systems where the
@code{fork} feature is provided (@pxref{Common Feature Symbols}).}:
@lisp
(use-modules (ice-9 popen))

8
doc/ref/srfi-modules.texi
View file

@ -3844,7 +3844,7 @@ again. SRFI-41 can be made available with:
SRFI-41 Streams are based on two mutually-recursive abstract data types:
An object of the @code{stream} abstract data type is a promise that,
when forced, is either @var{stream-null} or is an object of type
when forced, is either @code{stream-null} or is an object of type
@code{stream-pair}. An object of the @code{stream-pair} abstract data
type contains a @code{stream-car} and a @code{stream-cdr}, which must be
a @code{stream}. The essential feature of streams is the systematic
@ -3862,14 +3862,14 @@ stream, and is only forced on demand.
@subsubsection SRFI-41 Stream Primitives
This library provides eight operators: constructors for
@var{stream-null} and @code{stream-pair}s, type predicates for streams
@code{stream-null} and @code{stream-pair}s, type predicates for streams
and the two kinds of streams, accessors for both fields of a
@code{stream-pair}, and a lambda that creates procedures that return
streams.
@defvr {Scheme Variable} stream-null
A promise that, when forced, is a single object, distinguishable from
all other objects, that represents the null stream. @var{stream-null}
all other objects, that represents the null stream. @code{stream-null}
is immutable and unique.
@end defvr
@ -4003,7 +4003,7 @@ Returns a newly-allocated stream containing the elements from
Returns a newly-allocated stream containing in its elements the
characters on the port. If @var{port} is not given it defaults to the
current input port. The returned stream has finite length and is
terminated by @var{stream-null}.
terminated by @code{stream-null}.
It looks like one use of @code{port->stream} would be this:

2
lib/Makefile.am
View file

@ -21,7 +21,7 @@
# the same distribution terms as the rest of that program.
#
# Generated by gnulib-tool.
# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat times trunc verify vsnprintf warnings wchar
# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
AUTOMAKE_OPTIONS = 1.5 gnits subdir-objects

1
libguile/posix.c
View file

@ -2337,6 +2337,7 @@ scm_init_posix ()
#include "libguile/posix.x"
#ifdef HAVE_FORK
scm_add_feature ("fork");
scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION,
"scm_init_popen",
(scm_t_extension_init_func) scm_init_popen,

3
m4/gnulib-cache.m4
View file

@ -27,7 +27,7 @@
# Specification in the form of a command-line invocation:
# gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat times trunc verify vsnprintf warnings wchar
# gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
# Specification in the form of a few gnulib-tool.m4 macro invocations:
gl_LOCAL_DIR([gnulib-local])
@ -108,6 +108,7 @@ gl_MODULES([
striconveh
string
sys_stat
time
times
trunc
verify

11
module/Makefile.am
View file

@ -158,7 +158,6 @@ BRAINFUCK_LANG_SOURCES = \
language/brainfuck/spec.scm
SCRIPTS_SOURCES = \
scripts/autofrisk.scm \
scripts/compile.scm \
scripts/disassemble.scm \
scripts/display-commentary.scm \
@ -174,7 +173,6 @@ SCRIPTS_SOURCES = \
scripts/use2dot.scm \
scripts/snarf-check-and-output-texi.scm \
scripts/summarize-guile-TODO.scm \
scripts/scan-api.scm \
scripts/api-diff.scm \
scripts/read-rfc822.scm \
scripts/snarf-guile-m4-docs.scm
@ -256,12 +254,17 @@ ICE_9_SOURCES = \
ice-9/serialize.scm \
ice-9/local-eval.scm
if HAVE_FORK
if BUILD_ICE_9_POPEN
# This functionality is missing on systems without `fork'---i.e., Windows.
ICE_9_SOURCES += ice-9/popen.scm
endif HAVE_FORK
# These modules rely on (ice-9 popen).
SCRIPTS_SOURCES += \
scripts/autofrisk.scm \
scripts/scan-api.scm
endif BUILD_ICE_9_POPEN
SRFI_SOURCES = \
srfi/srfi-2.scm \

16
module/ice-9/command-line.scm
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@ -117,6 +117,7 @@ remaining arguments as the value of (command-line).
If FILE begins with `-' the -s switch is mandatory.
-L DIRECTORY add DIRECTORY to the front of the module load path
-C DIRECTORY like -L, but for compiled files
-x EXTENSION add EXTENSION to the front of the load extensions
-l FILE load source code from FILE
-e FUNCTION after reading script, apply FUNCTION to
@ -194,6 +195,7 @@ If FILE begins with `-' the -s switch is mandatory.
(script-cell #f)
(entry-point #f)
(user-load-path '())
(user-load-compiled-path '())
(user-extensions '())
(interactive? #t)
(inhibit-user-init? #f)
@ -264,6 +266,14 @@ If FILE begins with `-' the -s switch is mandatory.
(parse (cdr args)
out))
((string=? arg "-C") ; add to %load-compiled-path
(if (null? args)
(error "missing argument to `-C' switch"))
(set! user-load-compiled-path
(cons (car args) user-load-compiled-path))
(parse (cdr args)
out))
((string=? arg "-x") ; add to %load-extensions
(if (null? args)
(error "missing argument to `-x' switch"))
@ -430,11 +440,15 @@ If FILE begins with `-' the -s switch is mandatory.
`(set! %load-extensions (cons ,ext %load-extensions)))
user-extensions)
;; Add the user-specified load path here, so it won't be in
;; Add the user-specified load paths here, so they won't be in
;; effect during the loading of the user's customization file.
,@(map (lambda (path)
`(set! %load-path (cons ,path %load-path)))
user-load-path)
,@(map (lambda (path)
`(set! %load-compiled-path
(cons ,path %load-compiled-path)))
user-load-compiled-path)
;; Put accumulated actions in their correct order.
,@(reverse! out)

308
test-suite/tests/popen.test
View file

@ -1,6 +1,6 @@
;;;; popen.test --- exercise ice-9/popen.scm -*- scheme -*-
;;;;
;;;; Copyright 2003, 2006, 2010, 2011 Free Software Foundation, Inc.
;;;; Copyright 2003, 2006, 2010, 2011, 2013 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
@ -17,9 +17,7 @@
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-suite test-ice-9-popen)
#:use-module (test-suite lib)
#:use-module (ice-9 popen))
#:use-module (test-suite lib))
;; read from PORT until eof is reached, return what's read as a string
(define (read-string-to-eof port)
@ -37,176 +35,178 @@
thunk
restore-signals))
(define-syntax-rule (if-supported body ...)
(if (provided? 'fork)
(begin body ...)))
;;
;; open-input-pipe
;;
(if-supported
(use-modules (ice-9 popen))
(with-test-prefix "open-input-pipe"
(pass-if-exception "no args" exception:wrong-num-args
(open-input-pipe))
;;
;; open-input-pipe
;;
(pass-if "port?"
(port? (open-input-pipe "echo hello")))
(with-test-prefix "open-input-pipe"
(pass-if "echo hello"
(string=? "hello\n" (read-string-to-eof (open-input-pipe "echo hello"))))
(pass-if-exception "no args" exception:wrong-num-args
(open-input-pipe))
;; exercise file descriptor setups when stdin is the same as stderr
(pass-if "stdin==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-input-from-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-input-pipe "echo hello"))))))
#t)
(pass-if "port?"
(port? (open-input-pipe "echo hello")))
;; exercise file descriptor setups when stdout is the same as stderr
(pass-if "stdout==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-output-to-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-input-pipe "echo hello"))))))
#t)
(pass-if "echo hello"
(string=? "hello\n" (read-string-to-eof (open-input-pipe "echo hello"))))
(pass-if "open-input-pipe process gets (current-input-port) as stdin"
(let* ((p2c (pipe))
(port (with-input-from-port (car p2c)
(lambda ()
(open-input-pipe "read line && echo $line")))))
(display "hello\n" (cdr p2c))
(force-output (cdr p2c))
(let ((result (eq? (read port) 'hello)))
(close-port (cdr p2c))
(close-pipe port)
result)))
;; exercise file descriptor setups when stdin is the same as stderr
(pass-if "stdin==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-input-from-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-input-pipe "echo hello"))))))
#t)
;; After the child closes stdout (which it indicates here by writing
;; "closed" to stderr), the parent should see eof. In Guile 1.6.4
;; and earlier a duplicate of stdout existed in the child, meaning
;; eof was not seen.
;;
;; Note that the objective here is to test that the parent sees EOF
;; while the child is still alive. (It is obvious that the parent
;; must see EOF once the child has died.) The use of the `p2c'
;; pipe, and `echo closed' and `read' in the child, allows us to be
;; sure that we are testing what the parent sees at a point where
;; the child has closed stdout but is still alive.
(pass-if "no duplicate"
(let* ((c2p (pipe))
(p2c (pipe))
(port (with-error-to-port (cdr c2p)
(lambda ()
(with-input-from-port (car p2c)
(lambda ()
(open-input-pipe
"exec 1>/dev/null; echo closed 1>&2; exec 2>/dev/null; read REPLY")))))))
(close-port (cdr c2p)) ;; write side
(let ((result (eof-object? (read-char port))))
(display "hello!\n" (cdr p2c))
(force-output (cdr p2c))
(close-pipe port)
result)))
;; exercise file descriptor setups when stdout is the same as stderr
(pass-if "stdout==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-output-to-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-input-pipe "echo hello"))))))
#t)
)
(pass-if "open-input-pipe process gets (current-input-port) as stdin"
(let* ((p2c (pipe))
(port (with-input-from-port (car p2c)
(lambda ()
(open-input-pipe "read line && echo $line")))))
(display "hello\n" (cdr p2c))
(force-output (cdr p2c))
(let ((result (eq? (read port) 'hello)))
(close-port (cdr p2c))
(close-pipe port)
result)))
;;
;; open-output-pipe
;;
;; After the child closes stdout (which it indicates here by writing
;; "closed" to stderr), the parent should see eof. In Guile 1.6.4
;; and earlier a duplicate of stdout existed in the child, meaning
;; eof was not seen.
;;
;; Note that the objective here is to test that the parent sees EOF
;; while the child is still alive. (It is obvious that the parent
;; must see EOF once the child has died.) The use of the `p2c'
;; pipe, and `echo closed' and `read' in the child, allows us to be
;; sure that we are testing what the parent sees at a point where
;; the child has closed stdout but is still alive.
(pass-if "no duplicate"
(let* ((c2p (pipe))
(p2c (pipe))
(port (with-error-to-port (cdr c2p)
(lambda ()
(with-input-from-port (car p2c)
(lambda ()
(open-input-pipe
"exec 1>/dev/null; echo closed 1>&2; exec 2>/dev/null; read REPLY")))))))
(close-port (cdr c2p)) ;; write side
(let ((result (eof-object? (read-char port))))
(display "hello!\n" (cdr p2c))
(force-output (cdr p2c))
(close-pipe port)
result))))
(with-test-prefix "open-output-pipe"
;;
;; open-output-pipe
;;
(pass-if-exception "no args" exception:wrong-num-args
(open-output-pipe))
(with-test-prefix "open-output-pipe"
(pass-if "port?"
(port? (open-output-pipe "exit 0")))
(pass-if-exception "no args" exception:wrong-num-args
(open-output-pipe))
;; exercise file descriptor setups when stdin is the same as stderr
(pass-if "stdin==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-input-from-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-output-pipe "exit 0"))))))
#t)
(pass-if "port?"
(port? (open-output-pipe "exit 0")))
;; exercise file descriptor setups when stdout is the same as stderr
(pass-if "stdout==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-output-to-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-output-pipe "exit 0"))))))
#t)
;; exercise file descriptor setups when stdin is the same as stderr
(pass-if "stdin==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-input-from-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-output-pipe "exit 0"))))))
#t)
;; After the child closes stdin (which it indicates here by writing
;; "closed" to stderr), the parent should see a broken pipe. We
;; setup to see this as EPIPE (rather than SIGPIPE). In Guile 1.6.4
;; and earlier a duplicate of stdin existed in the child, preventing
;; the broken pipe occurring.
;;
;; Note that the objective here is to test that the parent sees a
;; broken pipe while the child is still alive. (It is obvious that
;; the parent will see a broken pipe once the child has died.) The
;; use of the `c2p' pipe, and the repeated `echo closed' in the
;; child, allows us to be sure that we are testing what the parent
;; sees at a point where the child has closed stdin but is still
;; alive.
;;
;; Note that `with-epipe' must apply only to the parent and not to
;; the child process; we rely on the child getting SIGPIPE, to
;; terminate it (and avoid leaving a zombie).
(pass-if "no duplicate"
(let* ((c2p (pipe))
(port (with-error-to-port (cdr c2p)
(lambda ()
(open-output-pipe
(string-append "exec guile --no-auto-compile -s \""
(getenv "TEST_SUITE_DIR")
"/tests/popen-child.scm\""))))))
(close-port (cdr c2p)) ;; write side
(with-epipe
(lambda ()
(let ((result
(and (char? (read-char (car c2p))) ;; wait for child to do its thing
(catch 'system-error
(lambda ()
(write-char #\x port)
(force-output port)
#f)
(lambda (key name fmt args errno-list)
(= (car errno-list) EPIPE))))))
;; Now close our reading end of the pipe. This should give
;; the child a broken pipe and so allow it to exit.
(close-port (car c2p))
(close-pipe port)
result)))))
;; exercise file descriptor setups when stdout is the same as stderr
(pass-if "stdout==stderr"
(let ((port (open-file "/dev/null" "r+")))
(with-output-to-port port
(lambda ()
(with-error-to-port port
(lambda ()
(open-output-pipe "exit 0"))))))
#t)
)
;; After the child closes stdin (which it indicates here by writing
;; "closed" to stderr), the parent should see a broken pipe. We
;; setup to see this as EPIPE (rather than SIGPIPE). In Guile 1.6.4
;; and earlier a duplicate of stdin existed in the child, preventing
;; the broken pipe occurring.
;;
;; Note that the objective here is to test that the parent sees a
;; broken pipe while the child is still alive. (It is obvious that
;; the parent will see a broken pipe once the child has died.) The
;; use of the `c2p' pipe, and the repeated `echo closed' in the
;; child, allows us to be sure that we are testing what the parent
;; sees at a point where the child has closed stdin but is still
;; alive.
;;
;; Note that `with-epipe' must apply only to the parent and not to
;; the child process; we rely on the child getting SIGPIPE, to
;; terminate it (and avoid leaving a zombie).
(pass-if "no duplicate"
(let* ((c2p (pipe))
(port (with-error-to-port (cdr c2p)
(lambda ()
(open-output-pipe
(string-append "exec guile --no-auto-compile -s \""
(getenv "TEST_SUITE_DIR")
"/tests/popen-child.scm\""))))))
(close-port (cdr c2p)) ;; write side
(with-epipe
(lambda ()
(let ((result
(and (char? (read-char (car c2p))) ;; wait for child to do its thing
(catch 'system-error
(lambda ()
(write-char #\x port)
(force-output port)
#f)
(lambda (key name fmt args errno-list)
(= (car errno-list) EPIPE))))))
;; Now close our reading end of the pipe. This should give
;; the child a broken pipe and so allow it to exit.
(close-port (car c2p))
(close-pipe port)
result))))))
;;
;; close-pipe
;;
;;
;; close-pipe
;;
(with-test-prefix "close-pipe"
(with-test-prefix "close-pipe"
(pass-if-exception "no args" exception:wrong-num-args
(close-pipe))
(pass-if-exception "no args" exception:wrong-num-args
(close-pipe))
(pass-if "exit 0"
(let ((st (close-pipe (open-output-pipe "exit 0"))))
(and (status:exit-val st)
(= 0 (status:exit-val st)))))
(pass-if "exit 1"
(let ((st (close-pipe (open-output-pipe "exit 1"))))
(and (status:exit-val st)
(= 1 (status:exit-val st))))))
(pass-if "exit 0"
(let ((st (close-pipe (open-output-pipe "exit 0"))))
(and (status:exit-val st)
(= 0 (status:exit-val st)))))
(pass-if "exit 1"
(let ((st (close-pipe (open-output-pipe "exit 1"))))
(and (status:exit-val st)
(= 1 (status:exit-val st)))))))