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commit bash-20171208 snapshot

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This commit is contained in:
Chet Ramey
2017-12-11 09:25:25 -05:00
parent 1126b09632
commit aa54feee4e
13 changed files with 358 additions and 47 deletions
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CWRU/CWRU.chlog
+106 -1
View File
@@ -13227,7 +13227,7 @@ subst.c
jobs.c
- bgp_delindex: make sure to set ps->pid to NO_PID so we more
effectively remove it from the hash table. It shouldn't matter as
long as nothing in pidstat_table points to it, but
long as nothing in pidstat_table points to it, but better to be safe
- bgp_delete,bgp_search: generalize previous collision detection to
loop detection: abort search if we are going to go back to the
first index we tried
@@ -14545,3 +14545,108 @@ execute_cmd.c
and a status and mark the coproc as dead and having been reaped
with that status. Used by child processes who want to invalidate
the coproc's pid
12/5
----
subst.c
- process_substitute: instead of just having a flag to denote that a
file descriptor is connected to a process substitution, store the
pid of the child process (still needs work)
- find_procsub_child,set_procsub_status,reap_procsubs: utility
functions to allow the job control code to detect that a process
substitution child has died and deallocate the file descriptors
or pathname
subst.h
- find_procsub_child,set_procsub_status,reap_procsubs: extern
declarations
nojobs.c
- set_pid_status: if we are reaping a process substitution, call
set_procsub_status to record the fact
jobs.c
- waitchld: if we are reaping a process substitution, call
set_procsub_status to record the fact. Doesn't really do anything
yet
12/6
----
execute_cmd.c
- execute_command: don't call unlink_fifo_list if we're in the
middle of executing a list of commands (executing_list != 0).
Partial fix for bug reported by Stephane Chazelas
<stephane.chazelas@gmail.com>
- execute_simple_command: don't close process substitution file
descriptors in the parent after forking children in a pipeline;
defer until pipeline completes, since parent may have inherited
fds from a calling scope (e.g., via `.'). EXPERIMENTAL
- execute_disk_command: don't close process substitution file
descriptors in the parent after forking the child. EXPERIMENTAL
12/7
----
doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
- show-mode-in-prompt: clarify that this must be enabled before the
vi and emacs mode strings are prefixed to the prompt. Report from
Rob Foehl <rwf@loonybin.net>
12/8
----
execute_cmd.c
- execute_coproc: don't warn about an existing coproc if the write and
read file descriptors are unusable (-1), as they will be after a
call to coproc_closeall in a subshell. Fixes spurious warning
reported by Tobias Hoffmann <lfile-list@thax.hardliners.org>
jobs.c
- bgp_resize: avoid overflow when calculating the new size if the
child process limit is something ridiculously large. Report and
fix from Natanael Copa <ncopa@alpinelinux.org>
execute_cmd.c
- execute_builtin_or_function: if we return via the return builtin, we
don't get a chance to free the saved fifo list, so add an unwind-
protect to make sure it happens. Part of fix for leak reported by
Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>
- execute_command_internal: if we unwind via the return builtin (e.g.,
we execute a function which then returns via the return builtin to
a previous function), we don't free the saved fifo list, so add an
unwind-protect to make sure the free happens. Rest of fix for leak
reported by Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>
subst.c
- add_fifo_list: for the FIFO case (no /dev/fd), make sure we
initialize the new members of the fifo list after xrealloc
12/9
----
subst.c
- dev_fd_list: now a list of type `pid_t' so we can store process
associated with the pipe fd into the right element; change all
necessary functions (copy_fifo_list, add_fifo_list)
- process_substitute: store pid of child process into the right
index in dev_fd_list after opening the pipe. Process ID of -1 means
process has been reaped and fd needs to be closed (or FIFO needs to
be unlinked); value of 0 means slot is unused
jobs.c
- wait_for_background_pids: call reap_procsubs to make sure we clean
up all reaped process substitutions before trying to wait for
everything (still needs work)
tests/{run-procsub,procsub.{tests,right}}
- new file, tests of process substitution that have failed in the past
12/10
-----
jobs.c
- wait_for_background_pids: warn if one of the jobs is stopped
subst.c
- wait_procsubs: new function, call wait_for for every "live" process
substitution
jobs.c
- wait_for_background_pids: call wait_procsubs to reap any living
process subsitutions
MANIFEST
+4
View File
@@ -929,6 +929,7 @@ tests/cond-regexp2.sub f
tests/cond-regexp3.sub f
tests/coproc.tests f
tests/coproc.right f
tests/coproc1.sub f
tests/cprint.tests f
tests/cprint.right f
tests/dbg-support.right f
@@ -1174,6 +1175,8 @@ tests/printf1.sub f
tests/printf2.sub f
tests/printf3.sub f
tests/printf4.sub f
tests/procsub.tests f
tests/procsub.right f
tests/quote.tests f
tests/quote.right f
tests/quote1.sub f
@@ -1273,6 +1276,7 @@ tests/run-posixpat f
tests/run-posixpipe f
tests/run-precedence f
tests/run-printf f
tests/run-procsub f
tests/run-quote f
tests/run-read f
tests/run-redir f
doc/bash.1
+9 -6
View File
@@ -5691,7 +5691,8 @@ or
.BR vi .
.TP
.B emacs\-mode\-string (@)
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when emacs editing mode is active. The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
backslash escape sequences is available.
@@ -5845,9 +5846,9 @@ a common prefix) cause the matches to be listed immediately instead
of ringing the bell.
.TP
.B show\-mode\-in\-prompt (Off)
If set to \fBOn\fP, add a character to the beginning of the prompt
indicating the editing mode: emacs (@), vi command (:) or vi
insertion (+).
If set to \fBOn\fP, add a string to the beginning of the prompt
indicating the editing mode: emacs, vi command, or vi insertion.
The mode strings are user-settable (e.g., \fIemacs\-mode\-string\fP).
.TP
.B skip\-completed\-text (Off)
If set to \fBOn\fP, this alters the default completion behavior when
@@ -5858,7 +5859,8 @@ after point in the word being completed, so portions of the word
following the cursor are not duplicated.
.TP
.B vi\-cmd\-mode\-string ((cmd))
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in command mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
@@ -5868,7 +5870,8 @@ non-printing characters, which can be used to embed a terminal control
sequence into the mode string.
.TP
.B vi\-ins\-mode\-string ((ins))
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in insertion mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
execute_cmd.c
+18 -4
View File
@@ -399,7 +399,7 @@ execute_command (command)
#if defined (PROCESS_SUBSTITUTION)
/* don't unlink fifos if we're in a shell function; wait until the function
returns. */
if (variable_context == 0)
if (variable_context == 0 && executing_list == 0)
unlink_fifo_list ();
#endif /* PROCESS_SUBSTITUTION */
@@ -749,6 +749,8 @@ execute_command_internal (command, asynchronous, pipe_in, pipe_out,
{
ofifo = num_fifos ();
ofifo_list = copy_fifo_list ((int *)&osize);
begin_unwind_frame ("internal_fifos");
add_unwind_protect (xfree, ofifo_list);
saved_fifo = 1;
}
else
@@ -1077,6 +1079,7 @@ execute_command_internal (command, asynchronous, pipe_in, pipe_out,
if (nfifo > ofifo)
close_new_fifos ((char *)ofifo_list, osize);
free ((void *)ofifo_list);
discard_unwind_frame ("internal_fifos");
}
#endif
@@ -2312,7 +2315,7 @@ execute_coproc (command, pipe_in, pipe_out, fds_to_close)
/* XXX -- can be removed after changes to handle multiple coprocs */
#if !MULTIPLE_COPROCS
if (sh_coproc.c_pid != NO_PID)
if (sh_coproc.c_pid != NO_PID && (sh_coproc.c_rfd >= 0 || sh_coproc.c_wfd >= 0))
internal_warning (_("execute_coproc: coproc [%d:%s] still exists"), sh_coproc.c_pid, sh_coproc.c_name);
coproc_init (&sh_coproc);
#endif
@@ -4213,11 +4216,13 @@ execute_simple_command (simple_command, pipe_in, pipe_out, async, fds_to_close)
result = last_command_exit_value;
close_pipes (pipe_in, pipe_out);
#if defined (PROCESS_SUBSTITUTION) && defined (HAVE_DEV_FD)
#if 0
/* Close /dev/fd file descriptors in the parent after forking the
last child in a (possibly one-element) pipeline. Defer this
until any running shell function completes. */
if (pipe_out == NO_PIPE && variable_context == 0) /* XXX */
unlink_fifo_list (); /* XXX */
#endif
#endif
command_line = (char *)NULL; /* don't free this. */
bind_lastarg ((char *)NULL);
@@ -5097,9 +5102,14 @@ execute_builtin_or_function (words, builtin, var, redirects,
char *ofifo_list;
#endif
#if defined (PROCESS_SUBSTITUTION)
#if defined (PROCESS_SUBSTITUTION)
begin_unwind_frame ("saved_fifos");
/* If we return, we longjmp and don't get a chance to restore the old
fifo list, so we add an unwind protect to free it */
ofifo = num_fifos ();
ofifo_list = copy_fifo_list (&osize);
if (ofifo_list)
add_unwind_protect (xfree, ofifo_list);
#endif
if (do_redirections (redirects, RX_ACTIVE|RX_UNDOABLE) != 0)
@@ -5178,7 +5188,9 @@ execute_builtin_or_function (words, builtin, var, redirects,
nfifo = num_fifos ();
if (nfifo > ofifo)
close_new_fifos (ofifo_list, osize);
free (ofifo_list);
if (ofifo_list)
free (ofifo_list);
discard_unwind_frame ("saved_fifos");
#endif
return (result);
@@ -5384,8 +5396,10 @@ parent_return:
/* Make sure that the pipes are closed in the parent. */
close_pipes (pipe_in, pipe_out);
#if defined (PROCESS_SUBSTITUTION) && defined (HAVE_DEV_FD)
#if 0
if (variable_context == 0)
unlink_fifo_list ();
#endif
#endif
FREE (command);
return (result);
jobs.c
+11 -3
View File
@@ -748,7 +748,7 @@ bgp_resize ()
else
nsize = bgpids.nalloc;
while (nsize < js.c_childmax)
while (nsize < (ps_index_t)js.c_childmax)
nsize *= 2;
if (bgpids.nalloc < js.c_childmax)
@@ -2442,7 +2442,10 @@ wait_for_background_pids ()
itrace("wait_for_background_pids: job %d non-null after js.j_lastj (%d)", i, js.j_lastj);
#endif
if (jobs[i] && STOPPED (i))
any_stopped = 1;
{
builtin_warning ("job %d[%d] stopped", i+1, find_last_pid (i, 0));
any_stopped = 1;
}
if (jobs[i] && RUNNING (i) && IS_FOREGROUND (i) == 0)
break;
@@ -2470,8 +2473,12 @@ wait_for_background_pids ()
#if defined (PROCESS_SUBSTITUTION)
if (last_procsub_child && last_procsub_child->pid != NO_PID)
r = wait_for (last_procsub_child->pid);
wait_procsubs ();
reap_procsubs ();
#if 1
/* We don't want to wait indefinitely if we have stopped children. */
/* XXX - should add a loop that goes through the list of process
substitutions and waits for each proc in turn before this code. */
if (any_stopped == 0)
{
/* Check whether or not we have any unreaped children. */
@@ -3644,11 +3651,12 @@ itrace("waitchld: waitpid returns %d block = %d children_exited = %d", pid, bloc
#endif
#if defined (PROCESS_SUBSTITUTION)
/* Only manipulate the list of process substitutions while SIGCHLD
is blocked. */
if ((ind = find_procsub_child (pid)) >= 0)
set_procsub_status (ind, pid, WSTATUS (status));
/* XXX - save in bgpids list? */
#endif
/* It is not an error to have a child terminate that we did
not have a record of. This child could have been part of
lib/readline/doc/readline.3
+10 -7
View File
@@ -6,9 +6,9 @@
.\" Case Western Reserve University
.\" chet.ramey@case.edu
.\"
.\" Last Change: Fri Feb 3 16:02:47 EST 2017
.\" Last Change: Thu Dec 7 08:36:25 EST 2017
.\"
.TH READLINE 3 "2017 February 3" "GNU Readline 7.0"
.TH READLINE 3 "2017 December 7" "GNU Readline 7.0"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
@@ -439,7 +439,8 @@ or
.BR vi .
.TP
.B emacs\-mode\-string (@)
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when emacs editing mode is active. The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
backslash escape sequences is available.
@@ -592,9 +593,9 @@ a common prefix) cause the matches to be listed immediately instead
of ringing the bell.
.TP
.B show\-mode\-in\-prompt (Off)
If set to \fBOn\fP, add a character to the beginning of the prompt
If set to \fBOn\fP, add a string to the beginning of the prompt
indicating the editing mode: emacs, vi command, or vi insertion.
The mode strings are user-settable.
The mode strings are user-settable (e.g., \fIemacs\-mode\-string\fP).
.TP
.B skip\-completed\-text (Off)
If set to \fBOn\fP, this alters the default completion behavior when
@@ -605,7 +606,8 @@ after point in the word being completed, so portions of the word
following the cursor are not duplicated.
.TP
.B vi\-cmd\-mode\-string ((cmd))
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in command mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
@@ -615,7 +617,8 @@ non-printing characters, which can be used to embed a terminal control
sequence into the mode string.
.TP
.B vi\-ins\-mode\-string ((ins))
This string is displayed immediately before the last line of the primary
If the \fIshow\-mode\-in\-prompt\fP variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in insertion mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
lib/readline/doc/rluser.texi
+8 -5
View File
@@ -524,7 +524,8 @@ set to either @samp{emacs} or @samp{vi}.
@item emacs-mode-string
@vindex emacs-mode-string
This string is displayed immediately before the last line of the primary
If the @var{show-mode-in-prompt} variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when emacs editing mode is active. The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
backslash escape sequences is available.
@@ -714,9 +715,9 @@ The default value is @samp{off}.
@item show-mode-in-prompt
@vindex show-mode-in-prompt
If set to @samp{on}, add a character to the beginning of the prompt
If set to @samp{on}, add a string to the beginning of the prompt
indicating the editing mode: emacs, vi command, or vi insertion.
The mode strings are user-settable.
The mode strings are user-settable (e.g., @var{emacs-mode-string}).
The default value is @samp{off}.
@item skip-completed-text
@@ -735,7 +736,8 @@ The default value is @samp{off}.
@item vi-cmd-mode-string
@vindex vi-cmd-mode-string
This string is displayed immediately before the last line of the primary
If the @var{show-mode-in-prompt} variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in command mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
@@ -747,7 +749,8 @@ The default is @samp{(cmd)}.
@item vi-ins-mode-string
@vindex vi-ins-mode-string
This string is displayed immediately before the last line of the primary
If the @var{show-mode-in-prompt} variable is enabled,
this string is displayed immediately before the last line of the primary
prompt when vi editing mode is active and in insertion mode.
The value is expanded like a
key binding, so the standard set of meta- and control prefixes and
lib/readline/doc/version.texi
+3 -3
View File
@@ -4,7 +4,7 @@ Copyright (C) 1988-2017 Free Software Foundation, Inc.
@set EDITION 7.0
@set VERSION 7.0
@set UPDATED 28 November 2017
@set UPDATED-MONTH November 2017
@set UPDATED 7 December 2017
@set UPDATED-MONTH December 2017
@set LASTCHANGE Tue Nov 28 10:14:48 PST 2017
@set LASTCHANGE Thu Dec 7 08:33:43 EST 2017
nojobs.c
+3
View File
@@ -271,8 +271,11 @@ set_pid_status (pid, status)
#if defined (PROCESS_SUBSTITUTION)
if ((ind = find_procsub_child (pid)) >= 0)
{
itrace("waitchld: calling set_procsub_status (%d, %d)", ind, pid);
set_procsub_status (ind, pid, WSTATUS (status));
/* XXX - also saving in list below */
}
#endif
slot = find_index_by_pid (pid);
subst.c
+59 -18
View File
@@ -5251,6 +5251,8 @@ parameter_brace_remove_pattern (varname, value, ind, patstr, rtype, quoted, flag
list. NFIFO is a count of the number of FIFOs in the list. */
#define FIFO_INCR 20
/* PROC value of -1 means the process has been reaped and the FIFO needs to
be removed. PROC value of 0 means the slot is unused. */
struct temp_fifo {
char *file;
pid_t proc;
@@ -5278,11 +5280,19 @@ static void
add_fifo_list (pathname)
char *pathname;
{
int osize, i;
if (nfifo >= fifo_list_size - 1)
{
osize = fifo_list_size;
fifo_list_size += FIFO_INCR;
fifo_list = (struct temp_fifo *)xrealloc (fifo_list,
fifo_list_size * sizeof (struct temp_fifo));
for (i = osize; i < fifo_list_size; i++)
{
fifo_list[i].file = (char *)NULL;
fifo_list[i].proc = 0; /* unused */
}
}
fifo_list[nfifo].file = savestring (pathname);
@@ -5293,12 +5303,12 @@ void
unlink_fifo (i)
int i;
{
if ((fifo_list[i].proc == -1) || (kill(fifo_list[i].proc, 0) == -1))
if ((fifo_list[i].proc == (pid_t)-1) || (fifo_list[i].proc > 0 && (kill(fifo_list[i].proc, 0) == -1)))
{
unlink (fifo_list[i].file);
free (fifo_list[i].file);
fifo_list[i].file = (char *)NULL;
fifo_list[i].proc = -1;
fifo_list[i].proc = 0;
}
}
@@ -5312,12 +5322,12 @@ unlink_fifo_list ()
for (i = saved = 0; i < nfifo; i++)
{
if ((fifo_list[i].proc == -1) || (kill(fifo_list[i].proc, 0) == -1))
if ((fifo_list[i].proc == (pid_t)-1) || (fifo_list[i].proc > 0 && (kill(fifo_list[i].proc, 0) == -1)))
{
unlink (fifo_list[i].file);
free (fifo_list[i].file);
fifo_list[i].file = (char *)NULL;
fifo_list[i].proc = -1;
fifo_list[i].proc = 0;
}
else
saved++;
@@ -5384,7 +5394,7 @@ set_procsub_status (ind, pid, status)
int status;
{
if (ind >= 0 && ind < nfifo)
fifo_list[ind].proc = -2; /* sentinel */
fifo_list[ind].proc = (pid_t)-1; /* sentinel */
}
/* If we've marked the process for this procsub as dead, close the
@@ -5395,11 +5405,23 @@ reap_procsubs ()
int i;
for (i = 0; i < nfifo; i++)
if (fifo_list[i].proc == -2) /* reaped */
{
fifo_list[i].proc = -1;
unlink_fifo (ind);
}
if (fifo_list[i].proc == (pid_t)-1) /* reaped */
unlink_fifo (i);
}
void
wait_procsubs ()
{
int i;
for (i = 0; i < nfifo; i++)
{
if (fifo_list[i].proc != (pid_t)-1 && fifo_list[i].proc > 0)
{
r = wait_for (fifo_list[i].proc);
fifo_list[i].proc = (pid_t)-1;
}
}
}
int
@@ -5436,7 +5458,10 @@ make_named_pipe ()
has open to children. NFDS is a count of the number of bits currently
set in DEV_FD_LIST. TOTFDS is a count of the highest possible number
of open files. */
static char *dev_fd_list = (char *)NULL;
/* dev_fd_list[I] value of -1 means the process has been reaped and file
descriptor I needs to be closed. Value of 0 means the slot is unused. */
static pid_t *dev_fd_list = (pid_t *)NULL;
static int nfds;
static int totfds; /* The highest possible number of open files. */
@@ -5480,8 +5505,8 @@ copy_fifo_list (sizep)
if (sizep)
*sizep = totfds;
ret = (char *)xmalloc (totfds);
return (memcpy (ret, dev_fd_list, totfds));
ret = (char *)xmalloc (totfds * sizeof (pid_t));
return (memcpy (ret, dev_fd_list, totfds * sizeof (pid_t)));
}
static void
@@ -5499,11 +5524,12 @@ add_fifo_list (fd)
if (fd >= totfds)
totfds = fd + 2;
dev_fd_list = (char *)xrealloc (dev_fd_list, totfds);
memset (dev_fd_list + ofds, '\0', totfds - ofds);
dev_fd_list = (char *)xrealloc (dev_fd_list, totfds * sizeof (dev_fd_list[0]));
/* XXX - might need a loop for this */
memset (dev_fd_list + ofds, '\0', (totfds - ofds) * sizeof (pid_t));
}
dev_fd_list[fd] = 1;
dev_fd_list[fd] = 1; /* marker; updated later */
nfds++;
}
@@ -5594,7 +5620,7 @@ set_procsub_status (ind, pid, status)
int status;
{
if (ind >= 0 && ind < totfds)
dev_fd_list[ind] = -2; /* sentinel */
dev_fd_list[ind] = (pid_t)-1; /* sentinel */
}
/* If we've marked the process for this procsub as dead, close the
@@ -5605,10 +5631,25 @@ reap_procsubs ()
int i;
for (i = 0; nfds > 0 && i < totfds; i++)
if (dev_fd_list[i] == -2)
if (dev_fd_list[i] == (pid_t)-1)
unlink_fifo (i);
}
void
wait_procsubs ()
{
int i, r;
for (i = 0; nfds > 0 && i < totfds; i++)
{
if (dev_fd_list[i] != (pid_t)-1 && dev_fd_list[i] > 0)
{
r = wait_for (dev_fd_list[i]);
dev_fd_list[i] = (pid_t)-1;
}
}
}
#if defined (NOTDEF)
print_dev_fd_list ()
{
tests/procsub.right
+28
View File
@@ -0,0 +1,28 @@
test1
foo
test2
test3
test4
8
test5
test6
test7
test8
test8a
test9
hi
bye
l8r
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
intern
1
0
0
0
0
extern
1
0
0
0
0
tests/procsub.tests
+93
View File
@@ -0,0 +1,93 @@
# process substitution constructs that have caused problems in the past
eval cat <(echo test1)
eval "echo foo;cat" <(echo test2)
unset f
f=<(echo test3); cat "$f"
unset f
eval f=<(echo test4) "; cat \$f"
unset f
FN=$TMPDIR/bashtest-procsub-$$
cat >"$FN" <<EOF
echo "test 12" | wc -c
cat "\$1"
EOF
source "$FN" <(echo test5)
rm -f "$FN"
unset FN
cat <( echo test6 ) <( echo test7 )
cat <( echo test8 ; sleep 2; echo test8a ) <( echo test9 )
# Zev Weiss 11/7/2012
fn() { cat | cat "$1"; }
fn <(:) < /dev/null
unset -f fn
f1(){
cat $1
date >/dev/null
}
f2(){
date >/dev/null
cat $1
}
cat <(echo hi)
f1 <(echo bye)
f2 <(echo l8r)
unset -f f1 f2
moo() { ls -l "$1" >/dev/null; ls -l "$1" >/dev/null; }; moo >(true)
moo() { ls -al "$1" >/dev/null; (true); ls -al "$1" >/dev/null; }; moo >(true)
unset -f moo
bug()
{
c=$(ulimit -n)
let c+=100
while let c--
do
while read -ru3 x
do
echo -n :
done 3< <(echo x)
done
echo
}
bug
unset -f bug
count_lines()
{
wc -l < $1
wc -l < $1
wc -l < $1
true | wc -l < $1
wc -l < $1
}
echo intern
count_lines <(date)
unset -f count_lines
echo extern
FN=$TMPDIR/bashtest-$$
cat >$FN <<EOF
wc -l < \$1
wc -l < \$1
wc -l < \$1
true | wc -l < \$1
wc -l < \$1
EOF
${THIS_SH} -c "source $FN <(date)"
rm -f $FN
tests/run-procsub
+6
View File
@@ -0,0 +1,6 @@
echo "warning: all of these tests will fail if process substitution has not" >&2
echo "warning: been compiled into the shell or if the OS does not provide" >&2
echo "warning: /dev/fd." >&2
${THIS_SH} ./procsub.tests > ${BASH_TSTOUT} 2>&1
diff ${BASH_TSTOUT} procsub.right && rm -f ${BASH_TSTOUT}