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Wed Apr 24 07:48:26 BST 2013 Colin Watson <cjwatson@debian.org>
* Version: 1.2.3.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
3:3:2.
Wed Apr 24 07:44:38 BST 2013 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait_all): Free active_pipelines if it is
entirely empty.
Wed Apr 24 07:27:44 BST 2013 Peter Schiffer <pschiffe@redhat.com>
* lib/pipeline.c (pipecmd_new_argstr): Fix memory leak when the
first word of argstr is "exec".
* tests/argstr.c (test_argstr_exec): Free cmd at end.
* tests/basic.c (test_basic_wait_all): Free statuses at end.
(test_basic_clearenv): Free p and p2 at end.
* tests/exec.c (test_exec_process, test_exec_function): Free cmd at
end of loop.
* tests/redirect.c (test_redirect_files): Free p and template at
end.
Tue Apr 23 07:52:40 BST 2013 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipecmd_exec): Flush stdio before starting a
sequence.
* NEWS: Document this.
Tue Apr 23 07:50:45 BST 2013 Peter Schiffer <pschiffe@redhat.com>
Colin Watson <cjwatson@debian.org>
Don't read uninitialised memory when testing for the end of long
lines (Fedora bug #876108).
* lib/pipeline.c (get_line): Fix incorrect memchr bounds.
* tests/Makefile.am (TESTS): Add reading_long_line.
(reading_long_line_SOURCES, reading_long_line_LDADD): Add.
* tests/reading_long_line.c: New file.
* .bzrignore: Add tests/reading_long_line.
* NEWS: Document this.
Mon Jan 21 11:42:09 GMT 2013 Colin Watson <cjwatson@debian.org>
* configure.ac (AC_HEADER_SYS_WAIT): Remove; superseded by Gnulib.
Mon Jan 21 11:26:15 GMT 2013 Colin Watson <cjwatson@debian.org>
Upgrade to Libtool 2.4.2-1.2 (from Debian).
Mon Dec 24 02:23:37 GMT 2012 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Remove redundant condition.
Mon Sep 17 22:54:12 BST 2012 Colin Watson <cjwatson@debian.org>
* Version: 1.2.2.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
3:2:2.
Mon Sep 17 22:52:58 BST 2012 Colin Watson <cjwatson@debian.org>
* Makefile.am (EXTRA_DIST): Add gnulib/gets.patch.
Mon Sep 17 22:31:18 BST 2012 Colin Watson <cjwatson@debian.org>
* release.sh: Use 'set -e' rather than '#! /bin/sh -e', to avoid
accidents when debugging with 'sh -x'.
Mon Sep 17 22:27:47 BST 2012 Colin Watson <cjwatson@debian.org>
* NEWS: Document changes since 1.2.1.
Mon Sep 17 22:23:59 BST 2012 Colin Watson <cjwatson@debian.org>
* autogen.sh: Use 'set -e' rather than '#! /bin/sh -e', to avoid
accidents when debugging with 'sh -x'.
Mon Sep 17 22:21:44 BST 2012 Křištof Želechovski <yecril71pl@gmail.com>
* configure.ac: Use AM_PROG_AR before LT_INIT, for compatibility
with Automake 1.12.
Mon Sep 17 22:05:04 BST 2012 Colin Watson <cjwatson@debian.org>
Backport Gnulib commit 66712c23388e93e5c518ebc8515140fa0c807348 to
stop assuming gets.
* gnulib/gets.patch: New file.
* autogen.sh: Apply gnulib/gets.patch.
Mon Sep 17 22:03:09 BST 2012 Colin Watson <cjwatson@debian.org>
Upgrade to Autoconf 2.69, Automake 1.11.6, and Gnulib
20120404-stable.
Sun Mar 4 17:43:21 GMT 2012 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Flush stdio after emitting
debugging output.
Fri Mar 2 19:54:40 GMT 2012 Colin Watson <cjwatson@debian.org>
* Version: 1.2.1.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
3:1:2.
Thu Mar 1 22:51:30 GMT 2012 Colin Watson <cjwatson@debian.org>
* NEWS: Correct date of 1.2.0 release.
Wed Feb 29 20:09:12 GMT 2012 Martin Pollard <martin.pollard@sanger.ac.uk>
* lib/pipeline.h: Enclose in extern "C" { } when compiling as C++.
Wed Feb 29 18:26:22 GMT 2012 Colin Watson <cjwatson@debian.org>
* tests/Makefile.am (TESTS): Add pump.
(pump_SOURCES, pump_LDADD): Add.
* tests/pump.c: New file.
* .bzrignore: Add tests/pump.
Wed Feb 29 18:19:08 GMT 2012 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Create output files if they do
not already exist, and truncate them if they do.
* lib/pipeline.h (pipeline_want_outfile): Document this.
* man/libpipeline.3 (Functions to build pipelines): Likewise.
* tests/common.c: New file.
* tests/common.h (TEST_CASE_WITH_FIXTURE): New macro.
(temp_dir_setup, temp_dir_teardown): Add prototypes.
* tests/redirect.c (test_redirect_outfile): New test.
(redirect_suite): Call test_redirect_outfile.
* tests/Makefile.am (basic_SOURCES, argstr_SOURCES, exec_SOURCES,
inspect_SOURCES, redirect_SOURCES): Add common.c.
* NEWS: Document this.
Mon Feb 27 22:17:20 GMT 2012 Colin Watson <cjwatson@debian.org>
* tests/exec.c (exit_helper, test_exit_function): Add test that
pipecmd_exec works with functions.
(exec_suite): Call test_exit_function.
Thu Feb 9 12:04:26 GMT 2012 Colin Watson <cjwatson@debian.org>
Upgrade to Automake 1.11.3.
Sun Feb 5 02:33:14 GMT 2012 Colin Watson <cjwatson@debian.org>
Upgrade to Automake 1.11.2 and Gnulib 20111211-stable.
* Makefile.am (EXTRA_DIST): Remove gnulib/m4/sockpfaf.m4, which was
removed from this package some time ago. Add gnulib/m4/math_h.m4.
Wed Dec 14 12:54:40 GMT 2011 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (FUNCTIONS): Add pipecmd_new_sequencev,
pipeline_new_command_argv, pipeline_command_argv,
pipeline_wait_all, and pipeline_run.
Wed Dec 14 12:48:56 GMT 2011 Colin Watson <cjwatson@debian.org>
Upgrade to Libtool 2.4.2.
Mon Oct 10 09:22:41 BST 2011 Colin Watson <cjwatson@debian.org>
* README: Document test suite dependencies. Suggested by Bruce
Dubbs.
Mon Sep 26 13:34:00 BST 2011 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (Reaping of child processes): Fix typo.
Mon Sep 26 12:10:35 BST 2011 Colin Watson <cjwatson@debian.org>
Upgrade to Gnulib 20110908-stable.
Sat Apr 23 17:51:13 BST 2011 Colin Watson <cjwatson@debian.org>
Upgrade to Autoconf 2.68, Libtool 2.4, and Gnulib 20110412-stable.
Wed Mar 30 13:40:42 BST 2011 Colin Watson <cjwatson@debian.org>
* gnulib: Import full-write, safe-read, and safe-write modules.
* lib/pipeline.c (passthrough): Use safe_read instead of read. Use
full_write instead of fwrite (stdio is not necessarily
EINTR-safe).
(pipeline_pump): Use safe_write instead of write and a manual
EINTR check.
(get_block): Use safe_read instead of read.
* NEWS: Document this.
Fri Mar 18 22:27:39 GMT 2011 Colin Watson <cjwatson@debian.org>
* Version: 1.2.0.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
3:0:2.
Fri Mar 18 18:24:42 GMT 2011 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (FUNCTIONS): Add pipeline_get_pid.
Fri Mar 18 18:22:42 GMT 2011 Colin Watson <cjwatson@debian.org>
* tests/inspect.c (pid_helper): Flush stdout before pausing.
Fri Mar 18 12:08:51 GMT 2011 Colin Watson <cjwatson@debian.org>
* gnulib: Import waitpid module.
Fri Mar 18 12:02:42 GMT 2011 Colin Watson <cjwatson@debian.org>
Upgrade to Gnulib 20110216-stable.
Fri Mar 18 11:45:10 GMT 2011 Colin Watson <cjwatson@debian.org>
* tests/basic.c (test_basic_clearenv): Test that pipecmd_clearenv
and pipecmd_setenv survive pipecmd_dup.
Tue Mar 8 14:10:52 GMT 2011 Colin Watson <cjwatson@debian.org>
Add a function to get process IDs of commands in started pipelines
(Savannah bug #32710).
* lib/pipeline.c (pipeline_get_pid): New function.
* lib/pipeline.h (pipeline_get_pid): Add prototype.
* man/libpipeline.3 (Functions to build pipelines): Document
pipeline_get_pid.
* tests/inspect.c (pid_helper, test_inspect_pid): Test
pipeline_get_pid.
* NEWS: Document this.
Mon Mar 7 10:41:50 GMT 2011 Colin Watson <cjwatson@debian.org>
* configure.ac: Check for working fork(2).
Sat Dec 11 15:01:14 GMT 2010 Colin Watson <cjwatson@debian.org>
* Version: 1.1.0.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Bump -version-info to
2:0:1.
Sat Dec 11 15:00:02 GMT 2010 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (FUNCTIONS): Add pipecmd_get_nargs,
pipecmd_clearenv, and pipecmd_exec.
Sat Dec 11 13:25:29 GMT 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (pipecmd_get_nargs): Clarify that the command name
is counted as the first argument.
* man/libpipeline.3 (pipecmd_get_nargs): Likewise.
* tests/basic.c (test_basic_args): Correct off-by-one error.
Mon Dec 6 20:54:29 GMT 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipecmd_get_nargs): New function.
* lib/pipeline.h (pipecmd_get_nargs): Add prototype.
* man/libpipeline.3 (Functions to build individual commands):
Document pipecmd_get_nargs.
* tests/basic.c (test_basic_args): Test pipecmd_get_nargs.
* NEWS: Document this.
Mon Dec 6 20:07:43 GMT 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipecmd_clearenv): New function.
(pipecmd_dup, pipecmd_dump, pipecmd_tostring, pipecmd_exec):
Handle cmd->env[i].name being NULL.
* lib/pipeline.h (pipecmd_clearenv): Add prototype.
* man/libpipeline.3 (Functions to build individual commands):
Document pipecmd_clearenv.
* tests/basic.c (test_basic_clearenv): Add test.
(basic_suite): Call test_basic_clearenv.
* NEWS: Document this.
Sun Nov 28 14:49:42 GMT 2010 Colin Watson <cjwatson@debian.org>
* NEWS: Note date of 1.0.0 release.
Sun Nov 28 14:47:03 GMT 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipecmd_start_child): Rename to ...
(pipecmd_exec): ... this, and make external. Update all callers.
* lib/pipeline.h (pipecmd_exec): Add prototype.
* man/libpipeline.3 (Functions to build individual commands):
Document pipecmd_exec.
* tests/Makefile.am (TESTS): Add exec.
(exec_SOURCES, exec_LDADD): Add.
* tests/exec.c: New file.
* .bzrignore: Add tests/exec.
* NEWS: Document this.
Sun Nov 28 13:43:45 GMT 2010 Colin Watson <cjwatson@debian.org>
* gnulib: Remove mkstemp module. Add sys_stat module.
Tue Nov 16 17:25:08 GMT 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (EXAMPLES): Clarify pipeline_readline example:
show calls to pipeline_want_out and pipeline_start.
Tue Nov 2 16:56:22 GMT 2010 Colin Watson <cjwatson@debian.org>
* README (Building programs with libpipeline): Recommend -Wformat.
Fri Oct 29 07:34:05 BST 2010 Colin Watson <cjwatson@debian.org>
* Version: 1.0.0.
Fri Oct 29 07:25:14 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (pipeline_install_post_fork): Clarify that this is
run in the child process.
(pipeline_wait_all): Clarify that SIGPIPE is considered equivalent
to exiting zero.
* man/libpipeline.3 (DESCRIPTION): Update descriptions of
pipeline_install_post_fork and pipeline_wait_all to match this.
(Functions to read output from pipelines): Note that output is
returned as a pointer into a pipeline-owned buffer.
Fri Oct 29 06:21:02 BST 2010 Colin Watson <cjwatson@debian.org>
* TODO: New file.
Fri Oct 29 06:20:18 BST 2010 Colin Watson <cjwatson@debian.org>
* README (Credits): New section.
Fri Oct 29 06:11:37 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipecmd_new_sequencev): New function.
(pipecmd_new_sequence): Rewrite in terms of pipecmd_new_sequence.
(pipeline_new_command_argv): New function.
(pipeline_new_command_args): Rewrite in terms of
pipeline_new_command_argv.
(pipeline_command_argv): New function.
(pipeline_command_args): Rewrite in terms of
pipeline_command_argv.
* lib/pipeline.h (pipecmd_new_sequencev, pipeline_new_command_argv,
pipeline_command_argv): Add prototypes.
* man/libpipeline.3 (DESCRIPTION): Document pipecmd_new_sequencev,
pipeline_new_command_argv, and pipeline_command_argv.
* tests/basic.c (test_basic_sequence): Add test.
(basic_suite): Call test_basic_sequence.
Fri Oct 29 05:25:19 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Rename to ...
(pipeline_wait_all): ... this. Return 127 rather than 1 if
closing the pipeline output fails. Return 127 if a command other
than the last one fails. Return the statuses and the number of
statuses in new output parameters if they are non-NULL.
(pipeline_wait): Add new wrapper function.
* lib/pipeline.h (pipeline_wait_all): Add prototype.
* man/libpipeline.3 (Functions to run pipelines and handle signals):
Document pipeline_wait_all.
* tests/basic.c (test_basic_wait_all): Add test.
(basic_suite): Call test_basic_wait_all.
Fri Oct 29 03:46:39 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_new): Default ignore_signals to 0.
* man/libpipeline.3 (Functions to build pipelines): Update
pipeline_ignore_signals documentation.
Fri Oct 29 03:43:29 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (Functions to build pipelines): Rephrase
description of want_out and want_in handling in terms of public
function calls.
Fri Oct 29 03:30:45 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (Functions to build individual commands):
Document variable arguments to pipecmd_new_sequence.
(Functions to build pipelines): Explain analogy of
pipeline_connect to tee(1).
Fri Oct 29 03:13:21 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c, lib/pipeline.h, lib/pipeline-private.h: Rename
command to pipecmd, command_* to pipecmd_*, and COMMAND_* to
PIPECMD_*. Update all callers and documentation references.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Adjust
-export-symbols-regex to export pipecmd_* rather than command_*.
Fri Oct 29 03:00:51 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (DESCRIPTION): Various minor corrections and
clarifications from Ian Jackson.
(BUGS): New section.
Tue Oct 26 21:09:53 BST 2010 Colin Watson <cjwatson@debian.org>
* tests/Makefile.am (TESTS): Add argstr.
(argstr_SOURCES, argstr_LDADD): Add.
* tests/argstr.c: New file.
* .bzrignore: Add tests/argstr.
Mon Oct 25 21:56:08 BST 2010 Colin Watson <cjwatson@debian.org>
* tests/inspect.c (test_inspect_command): Free the result of
command_tostring.
(test_inspect_pipeline): Free the result of pipeline_tostring.
Mon Oct 25 20:25:11 BST 2010 Colin Watson <cjwatson@debian.org>
Revert our patched version of xstrdup, since none of libpipeline's
calls to xstrdup rely on being able to pass NULL to it.
* Makefile.am (EXTRA_DIST): Remove gnulib/lib/xmalloc.c.orig and
gnulib/lib/xmalloc.patch.
* autogen.sh: Stop applying gnulib/lib/xmalloc.patch.
* gnulib/lib/xmalloc.c.orig, gnulib/lib/xmalloc.patch: Remove.
Mon Oct 25 20:10:25 BST 2010 Colin Watson <cjwatson@debian.org>
* README (Building programs with libpipeline): New section.
Mon Oct 25 19:39:06 BST 2010 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (FUNCTIONS): Add command_nice,
command_discard_err, command_unsetenv, pipeline_new_command_args,
pipeline_get_ncommands, pipeline_get_command,
pipeline_set_command, pipeline_want_in, pipeline_want_out,
pipeline_want_infile, pipeline_want_outfile, and
pipeline_ignore_signals.
Mon Oct 25 19:31:27 BST 2010 Colin Watson <cjwatson@debian.org>
* tests/basic.c: Include <string.h>.
Mon Oct 25 19:31:09 BST 2010 Colin Watson <cjwatson@debian.org>
* tests/Makefile.am (TESTS): Add inspect.
(inspect_SOURCES, inspect_LDADD): Add.
* tests/inspect.c: New file.
* .bzrignore: Add tests/inspect.
Mon Oct 25 19:18:35 BST 2010 Colin Watson <cjwatson@debian.org>
* tests/common.h: New file.
* tests/basic.c (basic_suite, main), tests/redirect.c
(redirect_suite, main): Use new TEST_CASE and MAIN macros.
* tests/Makefile.am (basic_SOURCES, redirect_SOURCES): Add common.h.
Mon Oct 25 16:17:24 BST 2010 Colin Watson <cjwatson@debian.org>
* gnulib: Import unsetenv module.
* lib/pipeline.c (command_unsetenv): New function.
(command_dup, command_dump, command_tostring): Check for NULL
cmd->env[i].value.
(command_start_child): If cmd->env[i].value is NULL, call unsetenv
rather than setenv.
* lib/pipeline.h (command_unsetenv): Add prototype.
* man/libpipeline.3 (Functions to build individual commands):
Document command_unsetenv.
* tests/basic.c (test_basic_setenv, test_basic_unsetenv): New tests.
(basic_suite): Call test_basic_setenv and test_basic_unsetenv.
Mon Oct 25 14:31:41 BST 2010 Colin Watson <cjwatson@debian.org>
* gnulib: Import mkstemp module.
* tests/Makefile.am (TESTS): Add redirect.
(LIBPIPELINE): Rename to ...
(LIBS): ... this, and add libgnu and $(LTLIBOBJS).
(AM_CPPFLAGS): Add -I$(top_srcdir)/gnulib/lib and
-I$(top_builddir)/gnulib/lib.
(clean-local): Remove temporary test files.
(basic_LDADD): Use $(LIBS) rather than $(LIBPIPELINE).
(redirect_SOURCES, redirect_LDADD): Add.
* tests/redirect.c: New file.
* .bzrignore: Add gnulib/lib/time.h and tests/redirect.
* lib/Makefile.am (libpipeline_la_CPPFLAGS): Remove spurious
-I$(top_builddir)/include.
Mon Oct 25 14:30:14 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Fix typo that broke
pipeline_want_infile.
Mon Oct 25 13:38:40 BST 2010 Colin Watson <cjwatson@debian.org>
Start test suite.
* lib/Makefile.am (libpipeline_la_LDFLAGS): Remove -module; this
introduces too many complications for now.
* configure.ac: Test for check >= 0.9.4.
(AC_CONFIG_FILES): Add tests/Makefile.
* Makefile.am (SUBDIRS): Add tests if check was found.
* tests/Makefile.am: New file.
* tests/basic.c: New file.
* .bzrignore: Add tests/basic.
Sun Oct 24 22:22:21 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_start_child): Add trailing newline to
"nice failed" debug message.
Sun Oct 24 22:21:20 BST 2010 Colin Watson <cjwatson@debian.org>
Make command and pipeline opaque types.
* lib/pipeline.c (command_nice, command_discard_err,
pipeline_get_ncommands, pipeline_get_command,
pipeline_set_command, pipeline_want_in, pipeline_want_out,
pipeline_want_infile, pipeline_want_outfile,
pipeline_ignore_signals): New functions.
* lib/pipeline.h (command_nice, command_discard_err,
pipeline_get_ncommands, pipeline_get_command,
pipeline_set_command, pipeline_want_in, pipeline_want_out,
pipeline_want_infile, pipeline_want_outfile,
pipeline_ignore_signals): Add prototypes.
* man/libpipeline.3 (DESCRIPTION): Document new functions.
* lib/pipeline.h (enum command_tag, struct command_env, struct
command, struct pipeline): Move to ...
* lib/pipeline-private.h (enum command_tag, struct command_env,
struct command, struct pipeline): ... here.
* man/libpipeline.3 (Public command fields, Public pipeline fields):
Remove.
Redirections are now handled slightly differently internally,
allowing redirection from/to fd 0.
* lib/pipeline.c (pipeline_new, pipeline_join): Set redirect_in and
redirect_out.
(pipeline_connect): Use pipeline_want_in and pipeline_want_out.
Check source->redirect_out.
(pipeline_start): Handle new redirection semantics.
* man/libpipeline.3 (EXAMPLES): Use pipeline_want_infile.
* man/libpipeline.3 (DESCRIPTION): Document string copying.
(Reaping of child processes): New subsection.
Tue Oct 19 01:43:29 BST 2010 Colin Watson <cjwatson@debian.org>
Make debugging work properly in a library context.
* lib/debug.c (init_debug): Check whether we've already been
initialised.
(debug): Call init_debug.
* lib/pipeline-private.h (init_debug): Add prototype.
* lib/pipeline.c (pipeline_start, pipeline_wait): Call init_debug.
Tue Oct 19 01:42:47 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3: Bump licence header to GPLv3, since that more
accurately describes the whole package.
Tue Oct 19 01:41:59 BST 2010 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (install-data-hook): Handle repeated
installations.
(uninstall-hook): Add.
Tue Oct 19 01:39:54 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline-private.h: Move attribute macros to ...
* lib/pipeline.h: ... here, and make them namespace-safe. Update
all users.
Mon Oct 18 11:32:52 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_run): This would be a more convenient
wrapper for the common case if it freed the pipeline as well, so
do that. (Callers that don't want this should call pipeline_start
and pipeline_wait separately.)
* lib/pipeline.h (pipeline_run): Update comment.
* man/libpipeline.3 (Functions to build pipelines): Update
pipeline_run documentation.
(EXAMPLES): Remove now-unnecessary calls to pipeline_free.
Mon Oct 18 11:29:11 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_new_command_args): New function.
* lib/pipeline.h (pipeline_new_command_args): Add prototype.
* man/libpipeline.3 (Functions to build pipelines): Add
pipeline_new_command_args.
(EXAMPLES): Use this to describe the simplest case.
Mon Oct 18 11:10:27 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_run): New function.
* lib/pipeline.h (pipeline_run): Add prototype.
* man/libpipeline.3 (Functions to run pipelines and handle signals):
Add pipeline_run.
(EXAMPLES): Use it.
Mon Oct 18 11:07:16 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3 (DESCRIPTION): Add some more paragraph breaks.
Fri Oct 15 10:26:02 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/libpipeline.pc.in: Add copyright/licensing comment.
* man/libpipeline.3: Add brief licensing comment.
Thu Oct 14 00:49:34 BST 2010 Colin Watson <cjwatson@debian.org>
* README (Copyright and licensing): Bump to GPLv3 or later, for
clarity. (lib/* remains licensed under GPLv2 or later, but the
work as a whole is GPLv3 or later.) Move further advice to ...
(Note on GPL versions): ... here, and expand.
Tue Oct 12 01:12:13 BST 2010 Colin Watson <cjwatson@debian.org>
* README: New file.
* INSTALL: New file.
Tue Oct 12 01:01:04 BST 2010 Colin Watson <cjwatson@debian.org>
* COPYING: New file.
* autogen.sh: Add a copyright/licence notice.
* configure.ac: Likewise.
* lib/pipeline-private.h: Update copyright years.
Tue Oct 12 00:52:00 BST 2010 Colin Watson <cjwatson@debian.org>
* man/libpipeline.3: Add a licence notice.
Tue Oct 12 00:27:01 BST 2010 Colin Watson <cjwatson@debian.org>
* autogen.sh: Stop setting AUTOPOINT=true.
* configure.ac: Stop echoing DBLIBS (specific to man-db).
Tue Oct 12 00:22:00 BST 2010 Colin Watson <cjwatson@debian.org>
* configure.ac: Remove check for gnulib/po/Makefile.in.in.
Tue Oct 12 00:17:53 BST 2010 Colin Watson <cjwatson@debian.org>
Remove gettext support. It's overkill for a library considering
that we only emit error messages, and it vastly inflates the size of
our configuration requirements.
* Makefile.am (SUBDIRS): Remove gnulib/po and po.
(EXTRA_DIST): Remove everything except gnulib/m4/sockpfaf.m4.
* autogen.sh: Remove call to autopoint and removal of po/ChangeLog.
* configure.ac: Remove calls to AM_GNU_GETTEXT and
AM_GNU_GETTEXT_VERSION. Stop substituting LINGUAS.
(AC_CONFIG_FILES): Remove gnulib/po/Makefile.in and
po/Makefile.in.
* gnulib/m4/gnulib-cache.m4: Remove --po-base and --po-domain
options. Remove gettext module.
* lib/Makefile.am (libpipeline_la_LIBADD): Remove @LTLIBINTL@.
* lib/pipeline.c (command_new_argstr, command_start_child),
pipeline_get_infile, pipeline_get_outfile,
pipeline_install_sigchld, pipeline_start, pipeline_wait,
pipeline_pump): Remove gettext support.
* po/*: Remove.
* .bzrignore: Remove gnulib/po and po/*.
Mon Oct 11 21:25:37 BST 2010 Colin Watson <cjwatson@debian.org>
* autogen.sh: Remove po/ChangeLog after running autoreconf.
* .bzrignore: Remove po/ChangeLog.
* Makefile.am (EXTRA_DIST): Add gnulib/m4/codeset.m4,
gnulib/m4/fcntl-o.m4, and gnulib/m4/glibc21.m4.
* po/LINGUAS: New file.
Mon Oct 11 18:19:37 BST 2010 Colin Watson <cjwatson@debian.org>
* man/Makefile.am (man3_MANS): Move to ...
(dist_man3_MANS): ... here.
Mon Oct 11 17:51:16 BST 2010 Colin Watson <cjwatson@debian.org>
* Makefile.am (SUBDIRS): Add man.
* configure.ac (AC_PROG_LN_S): Add.
(AC_CONFIG_FILES): Add man/Makefile.
* man/Makefile.am: New file.
* man/libpipeline.3: New file.
Mon Oct 11 16:38:29 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (pipeline_pump): Mention in comment that arguments
must be NULL-terminated.
Mon Oct 11 14:10:54 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (pipeline_new_commandv): Fix comment.
Thu Oct 7 08:05:41 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/libpipeline.pc.in: New file.
* configure.ac (AC_CONFIG_FILES): Add lib/libpipeline.pc.
* lib/Makefile.am (pkgconfigdir, pkgconfig_DATA): Install
libpipeline.pc to $(libdir)/pkgconfig.
* .bzrignore: Add lib/libpipeline.pc.
Thu Oct 7 07:56:27 BST 2010 Colin Watson <cjwatson@debian.org>
* po/libpipeline.pot: Update.
* po/*.po: Import translations from man-db.
Thu Oct 7 07:54:12 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/Makefile.am (libpipeline_la_SOURCES): Add pipeline-private.h.
Thu Oct 7 07:49:46 BST 2010 Colin Watson <cjwatson@debian.org>
* release.sh: New file, from man-db.
Thu Oct 7 07:48:12 BST 2010 Colin Watson <cjwatson@debian.org>
Build independently from man-db. Many new files from gettextize,
gnulib-tool, and autoreconf.
* lib/appendstr.c: New file, from man-db.
* lib/debug.c: Likewise.
* m4/pipeline-gcc-warning.m4: Likewise.
* m4/pipeline-socketpair.m4: Likewise.
* lib/pipeline-private.h: New file.
* lib/pipeline.c (command_new_argstr): Use strcmp rather than STREQ.
(pipeline_install_post_fork): New function.
(pipeline_start): Call post-fork handler rather than hardcoding
pop_all_cleanups.
* lib/pipeline.h (pipeline_install_post_fork): Add prototype.
* lib/pipeline.c: Update copyright notice for libpipeline.
* lib/pipeline.h: Likewise.
* gnulib: Import dirname, error, gettext, lib-ignore, setenv,
sigaction, signal, sigprocmask, strerror, strsignal, sys_select,
xalloc, xstrndup, and xvasprintf modules.
* Makefile.am: New file.
* NEWS: New file.
* autogen.sh: New file.
* configure.ac: New file.
* lib/Makefile.am: New file.
* .bzrignore: New file.
Entries below this point are edited versions of entries in man-db.
Sun Oct 3 23:57:45 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_argf): New function.
* lib/pipeline.h (command_argf): Add prototype.
Sun Oct 3 22:34:13 BST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (reap_children, pipeline_sigchld,
pipeline_install_sigchld): Move above pipeline_start.
(pipeline_install_sigchld): Make static. Return immediately if
already installed.
(pipeline_start): Call pipeline_install_sigchld.
* lib/pipeline.h (pipeline_start): Document that this installs a
SIGCHLD handler.
(pipeline_install_sigchld): Remove prototype.
Tue Mar 2 10:04:54 GMT 2010 Colin Watson <cjwatson@debian.org>
Fix assertion failure on 'man -l' with an uncompressed page and
prefixed input (no-hyphenation, no-justification, or a non-English
page).
* lib/pipeline.c (command_new_passthrough): New function.
* lib/pipeline.h (command_new_passthrough): Add prototype.
Mon Feb 1 12:18:36 PST 2010 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Don't bother printing error
messages for SIGINT and SIGQUIT, since these correspond to
explicit user actions (Debian bug #568000).
Wed Jan 13 23:42:00 GMT 2010 Werner Fink <werner@suse.de>
Add support for using socketpair(2) as a replacement for pipe(2),
which is faster on some systems (Savannah patch #6741).
* lib/pipeline.c [USE_SOCKETPAIR_PIPE]: Redefine pipe() to a
construction based on socketpair().
Tue Jan 12 13:33:51 GMT 2010 Samuel Thibault <sthibault@debian.org>
* lib/pipeline.c (pipeline_pump): Fix off-by-one error when write
returns EAGAIN (Debian bug #564818).
Sat Nov 14 18:52:15 GMT 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (argstr_get_word): Fix a small memory leak.
Sat Nov 14 10:23:28 GMT 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_new_sequence, command_sequence_command):
New functions.
(command_dup, command_dump, command_tostring, command_free):
Handle commands of type COMMAND_SEQUENCE.
(pipeline_start): Move command execution to ...
(command_start_child): ... here (new function). Handle commands of
type COMMAND_SEQUENCE.
* lib/pipeline.h (enum command_tag): Add COMMAND_SEQUENCE.
(struct command): Add support for commands that consist of a
sequence of commands.
(command_new_sequence, command_sequence_command): Add prototypes.
Thu Sep 24 12:32:48 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_pump): When a source pipeline dies, make
sure to drain its output before discarding its output file
descriptor (Debian bug #548153). We still record the death to
avoid duplicate debugging messages.
Sun Aug 23 15:49:45 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_dup): Fix newcmd->nenv assertion.
Sun Aug 23 15:41:32 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_dup, command_setenv): cmd->env does not
need to be { NULL, NULL }-terminated.
Sun Aug 23 00:04:56 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_setenv): New function, allowing
application code to ask for environment variables to be set when a
command is executed.
(command_new, command_new_function, command_dup, command_dump,
command_tostring, command_free): Handle new nenv, env_max, and env
members of 'struct command'.
(argstr_get_word): Add TODO comment for environment variable
support.
(pipeline_start): Set environment variables as requested.
* lib/pipeline.h (struct command_env): New structure.
(struct command): Add nenv, env_max, and env members.
(command_setenv): Add prototype.
Sun Jun 28 01:47:51 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_free): Free buffer and line_cache.
Sun Jun 28 01:40:24 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (get_line): Limit newline search to the data length
returned by get_block, fixing an assertion failure.
Sat May 30 12:50:44 BST 2009 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Check the return value of nice.
Mon Nov 17 11:07:50 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_new_function): Initialise discard_err.
(pipeline_start): Zero-initialise pids and statuses arrays on
allocation, and don'\''t unblock SIGCHLD until after doing so.
Mon Nov 17 00:39:14 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Mangle return value into a value
suitable for passing to exit (Debian bug #477305).
Mon Sep 8 09:09:06 BST 2008 Colin Watson <cjwatson@debian.org>
Add support for freeing command_function data.
* lib/pipeline.c (command_new_function): Add free_func argument.
(command_dup): Copy it.
(pipeline_connect): Adjust command_new_function call.
(pipeline_start): Free command_function data before exiting.
(pipeline_wait): Free command_function data while cleaning up
pipeline.
* lib/pipeline.h: Add command_function_free_type typedef.
(struct command [struct command_function]): Add free_func member.
(command_new_function): Update prototype.
Thu Jul 31 00:51:58 BST 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_pump): Free known_source before returning
(Coverity CID #15).
Sun May 4 23:16:59 BST 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start, pipeline_pump): Zero sigaction
structures before using them. (I believe we set all required
fields anyway; this is just an extra safety catch.)
Sun Apr 27 11:24:24 BST 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_sigchld): assert is not
async-signal-safe, so avoid calling it in a signal handler and use
an if guard instead (Ubuntu bug #221635, although exactly why the
assertion is failing there is unclear).
Sun Feb 17 17:13:55 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Call strsignal rather than
xstrsignal.
Sun Jan 27 13:42:31 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_join): Initialise source, buffer, buflen,
bufmax, line_cache, and peek_offset.
Sun Jan 27 13:37:17 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (struct pipeline): Add ignore_signals member.
* lib/pipeline.c (pipeline_new): Initialise ignore_signals to 1.
(pipeline_join): Set ignore_signals if either input pipeline has
it set.
(pipeline_start): Only ignore SIGINT and SIGQUIT if ignore_signals
is set.
(pipeline_wait): Only restore SIGINT and SIGQUIT if ignore_signals
is set.
Sun Jan 6 15:01:08 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start, pipeline_wait,
pipeline_install_sigchld, pipeline_pump): Call sigaction rather
than xsigaction.
Wed Jan 2 23:30:33 GMT 2008 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (passthrough): Use STDIN_FILENO, STDOUT_FILENO, and
STDERR_FILENO macros rather than calling fileno.
Mon Dec 31 10:02:28 GMT 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (passthrough): New helper function.
(pipeline_connect): Add special (kludge) handling for zero-command
sinks.
(pipeline_pump): Add minor commentary.
Wed Oct 17 21:05:50 BST 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c: Assume <sys/select.h> and <unistd.h>. Remove
duplicate <fcntl.h> inclusion.
(command_new): Use base_name.
Mon Oct 8 02:24:19 BST 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (get_block): Use xrealloc instead of realloc.
Mon Oct 8 02:09:55 BST 2007 Colin Watson <cjwatson@debian.org>
The strappend function is in the namespace reserved by C99
7.26.10/7.26.11; rename it to appendstr.
* lib/pipeline.c: Update all callers.
Mon Sep 17 00:11:38 UTC 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Break after execvp, otherwise we
segfault if execvp fails.
Fri Aug 31 04:54:45 BST 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_free): Call pipeline_wait if the pipeline
is still running.
* lib/pipeline.h (pipeline_free): Document that this may happen.
Tue Aug 28 17:19:16 BST 2007 Colin Watson <cjwatson@debian.org>
Implement and use a decompression library. This allows cat pages to
be saved in the background (Debian bug #18452) and operation with a
read-only /tmp (Debian bug #165499).
* lib/pipeline.h (struct command): Add support for commands that
consist of calling a function rather than executing a process.
(struct pipeline): Add want_infile and want_outfile members. Note
that infile and outfile default to NULL. Add source, buffer,
buflen, bufmax, line_cache, and peek_offset members.
(command_new_function, command_dump, command_tostring,
pipeline_connect, pipeline_pump, pipeline_read, pipeline_peek,
pipeline_peek_size, pipeline_peek_skip, pipeline_readline,
pipeline_peekline): New prototypes.
(pipeline_join): Update description for want_infile and
want_outfile.
* lib/pipeline.c (command_new, command_dup, command_arg,
command_argv, command_args, command_argstr, command_free): Update
for 'struct command' changes.
(command_new_function, command_dump, command_tostring): New
functions.
(pipeline_new, pipeline_join, pipeline_dump, pipeline_tostring):
Update for 'struct pipeline' changes.
(pipeline_dump): Use command_dump.
(pipeline_tostring): Use command_tostring.
(pipeline_start): Implement want_infile, want_outfile, and
function commands. Make zero-command case work properly (read
directly from input file). Flush all pending stdio output so that
subprocesses don't inherit it.
(pipeline_connect, pipeline_pump, get_block, pipeline_read,
pipeline_peek, pipeline_peek_size, pipeline_peek_skip, get_line,
pipeline_readline, pipeline_peekline): New functions.
Mon Aug 27 20:02:17 BST 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Re-raise SIGINT or SIGQUIT if they
terminate a subprocess.
Mon Aug 27 19:58:19 BST 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Return 1 if we fail to close the
pipeline's output.
Mon Aug 20 00:10:49 BST 2007 Colin Watson <cjwatson@debian.org>
Discard stderr from formatting processes when outputting to a pager,
to avoid visual corruption from any error messages (thanks, Vincent
Lefevre; Debian bug #372939).
* lib/pipeline.h (struct command): Add discard_err member.
* lib/pipeline.c (command_new, command_dup): Initialise discard_err.
(pipeline_start): Redirect the child's stderr to /dev/null if
discard_err is set.
Sun Mar 4 00:51:30 GMT 2007 Colin Watson <cjwatson@debian.org>
Eliminate variable and function shadowing.
* lib/pipeline.c (pipeline_start): Remove duplicate declarations of
set and oset.
Wed Feb 28 22:04:04 GMT 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Close inputs and outputs from
other active pipelines in all subprocesses.
Wed Feb 28 21:57:24 GMT 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Don't ignore SIGPIPE in
subprocesses; this has undesirable consequences in some
situations.
(pipeline_wait): Flatten SIGPIPE exit statuses to zero instead.
Tue Feb 27 20:58:31 GMT 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Save previous value of SIGQUIT
such that it gets restored as SIGQUIT, not as SIGINT.
Mon Jan 8 10:39:24 GMT 2007 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start, pipeline_wait,
pipeline_install_sigchld): Use xsigaction instead of
sigaction-plus-EINTR-check.
Tue Dec 26 14:27:59 GMT 2006 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c: Include "gettext.h" rather than <libintl.h>. Make
sure not to include <locale.h> before "gettext.h", for portability
to Solaris.
Sun Sep 17 09:20:33 BST 2006 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Ignore SIGPIPE in child processes
(Debian bug #387864).
Wed Feb 22 09:44:02 GMT 2006 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_new_argstr): Skip "exec" at the start of a
command, to make old configuration files work (Debian bug
#353959).
Wed Sep 21 10:56:22 BST 2005 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Queue SIGCHLD for the whole time
we're collecting child process statuses; we need to keep a careful
count of processes. Forget any previous errno before calling
reap_children. Should fix Debian bug #326488.
Wed Sep 21 10:10:12 BST 2005 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start, pipeline_wait): Ignore SIGINT and
SIGQUIT in the parent while running subprocesses (Debian bug
#328982).
Thu Sep 1 14:10:07 BST 2005 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (argstr_get_word): Use an enum for quotemode rather
than magic numbers.
Mon Jul 11 18:12:58 BST 2005 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Emit a debugging message.
Mon Jul 11 14:41:52 BST 2005 Colin Watson <cjwatson@debian.org>
* include/manconfig.h.in: Define ATTRIBUTE_SENTINEL to a function
attribute enabling sentinel checking if using GCC 4.0 or newer.
(strappend): Use it.
* lib/pipeline.h (command_new_args, command_args,
pipeline_new_commands, pipeline_command_args, pipeline_commands):
Likewise.
Sun Dec 12 21:48:04 CET 2004 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_sigchld): Don't bother saving and
restoring errno if SIGCHLD is being queued.
Sun Nov 7 16:07:26 GMT 2004 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Close pipeline output before
reaping processes, so that writing processes get SIGPIPE.
Sun Nov 7 16:05:08 GMT 2004 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): Fix active process debugging
output to include processes without statuses.
Mon Mar 8 11:21:05 GMT 2004 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_dump): Show caller-supplied input and
output file descriptors.
* lib/pipeline.c (command_free, pipeline_free): Return safely if
argument is NULL.
* lib/pipeline.h (command_free, pipeline_free): Document NULL
arguments as a safe no-op, like free().
Sun Sep 21 02:17:43 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Dump pipeline in debugging mode.
Thu Aug 28 00:40:09 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Change "couldn't exec %s" to
"can't execute %s" in line with src/man.c, to make translators'
lives easier.
(pipeline_wait): Separate "%s: %s%s" into two translatable
strings: the "(core dumped)" portion should definitely be
translated.
Fri Aug 15 18:05:37 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c: Include <libgen.h> instead of relying on
basename() prototype in manconfig.h.
Sat Aug 9 18:28:01 BST 2003 Colin Watson <cjwatson@debian.org>
Replace the old "wait() for one child at a time" approach with a
SIGCHLD-handling edifice that collects children's exit statuses as
they die.
* lib/pipeline.c (pipeline_new): Initialize statuses.
(pipeline_join): Set statuses to NULL in joined pipeline.
(pipeline_join, pipeline_get_infile, pipeline_get_outfile,
pipeline_start, pipeline_wait): Assert that statuses field is NULL
or non-NULL as appropriate.
(pipeline_free): Free statuses if necessary.
(pipeline_start): Add p to a new active_pipelines array, to be
used while reaping children. Initialize statuses elements to -1.
Block SIGCHLD while forking children.
(reap_children): New function. Delivers collected exit statuses
into statuses fields of entries in active_pipelines.
(pipeline_wait): Rather than wait()ing manually here, check
whether any statuses have been picked up by the SIGCHLD handler,
and if not call reap_children(). Remove now-obsolete TODO comment.
(pipeline_sigchld): New function, the SIGCHLD handler.
(pipeline_install_sigchld): New function, to be called once per
program.
(pipeline_start, pipeline_wait): Add minimal debugging
information.
* lib/pipeline.h: Prototype new functions.
(struct pipeline): New statuses member.
Sat Aug 9 17:00:12 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_dup): Copy cmd->nice.
(pipeline_command): Correct condition for growing commands array.
Mon Aug 4 19:35:26 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_dup): Terminate argv with a NULL.
(command_dup, command_arg): Assert that argc < argv_max after
changing either.
Mon Aug 4 19:30:22 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_dump): New function to dump a printable
representation of a pipeline to a stream.
(pipeline_tostring): Likewise, but to a newly allocated string.
* lib/pipeline.h: Prototype these.
Mon Aug 4 12:03:38 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (argstr_get_word): Plug some memory leaks.
Mon Aug 4 01:05:12 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_wait): The return value was a bit
groff-specific. Now just return the status of the last command in
the pipeline, as reported by wait().
Mon Aug 4 00:31:44 BST 2003 Colin Watson <cjwatson@debian.org>
Add support for getting stdio streams for input and output. Needs
library support because pipeline_wait() needs to know to close the
stream rather than the underlying file descriptor.
* lib/pipeline.h (struct pipeline): New infile and outfile members.
(pipeline_get_infile, pipeline_get_outfile): Add prototypes.
* lib/pipeline.c (pipeline_new): Initialize infile and outfile.
(pipeline_join): Likewise.
(pipeline_get_infile, pipeline_get_outfile): New functions.
(pipeline_wait): Check for infile and outfile and fclose() them in
preference to close()ing infd and outfd. Check for errors on
close().
Sun Aug 3 23:59:18 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Use dup2() instead of close()
then dup().
Sun Aug 3 23:52:14 BST 2003 Colin Watson <cjwatson@debian.org>
infd and outfd should now only be set by pipeline_start(). Positive
values in want_in and want_out now indicate caller-supplied file
descriptors, while negative values indicate a request for
pipeline_start() to create a pipe.
* lib/pipeline.h (struct pipeline): Document this.
* lib/pipeline.c (pipeline_start): Implement it. Caller-supplied
input and output file descriptors previously didn't work properly.
(pipeline_wait): Update TODO comment.
Sun Aug 3 21:07:46 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (struct command): New 'nice' member.
* lib/pipeline.c (command_new): Initialize nice.
(pipeline_start): Change child process priority if nice is set.
Sun Aug 3 20:50:35 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (pipeline_start): Pop all cleanups in child.
Sun Aug 3 20:47:24 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (argstr_get_word, command_new_argstr,
command_argstr, pipeline_command_argstr): New functions to handle
constructing commands from shell-quoted strings, such as those
found in man-db configuration files. They deliberately handle only
a safe subset of shell syntax.
* lib/pipeline.h: Prototype command_new_argstr(), command_argstr(),
and pipeline_command_argstr().
Sun Aug 3 19:09:59 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c (command_dup): New function to duplicate a command.
(pipeline_join): New function to join two pipelines together.
* lib/pipeline.h: Prototype these.
Sun Aug 3 18:00:59 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.h (struct pipeline): The writeto, readfrom, writefd,
and readfd names turn out to be confusing in calling code. Rename
to want_in, want_out, infd, and outfd respectively.
* lib/pipeline.c (pipeline_new, pipeline_start, pipeline_wait): Use
new names.
Sun Aug 3 16:35:24 BST 2003 Colin Watson <cjwatson@debian.org>
Add support in pipeline library for writing input to or reading
output from the whole pipeline.
* lib/pipeline.c (pipeline_new): Initialize writeto, readfrom,
writefd, and readfd.
(pipeline_start): Create extra pipes as necessary.
(pipeline_wait): Expand TODO comment. Close file descriptors from
extra pipes if necessary.
* lib/pipeline.h (struct pipeline): Add writeto, readfrom, writefd,
and readfd.
Sun Aug 3 11:15:17 BST 2003 Colin Watson <cjwatson@debian.org>
* lib/pipeline.c: New pipeline library, adapted from that in groff.
The interface isn't complete yet; in particular, it can't be a
replacement for popen() at the moment.
* lib/pipeline.h: New file with pipeline library interface.