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/*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License
* at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is librabbitmq.
*
* The Initial Developer of the Original Code is VMware, Inc.
* Portions created by VMware are Copyright (c) 2007-2011 VMware, Inc.
*
* Portions created by Tony Garnock-Jones are Copyright (c) 2009-2010
* VMware, Inc. and Tony Garnock-Jones.
*
* All rights reserved.
*
* Alternatively, the contents of this file may be used under the terms
* of the GNU General Public License Version 2 or later (the "GPL"), in
* which case the provisions of the GPL are applicable instead of those
* above. If you wish to allow use of your version of this file only
* under the terms of the GPL, and not to allow others to use your
* version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the
* notice and other provisions required by the GPL. If you do not
* delete the provisions above, a recipient may use your version of
* this file under the terms of any one of the MPL or the GPL.
*
* ***** END LICENSE BLOCK *****
*/
#include <unistd.h>
#include <errno.h>
#include <spawn.h>
#include <sys/wait.h>
#include "common.h"
#include "process.h"
extern char **environ;
void pipeline(const char *const *argv, struct pipeline *pl)
{
posix_spawn_file_actions_t file_acts;
int pipefds[2];
if (pipe(pipefds))
die_errno(errno, "pipe");
die_errno(posix_spawn_file_actions_init(&file_acts),
"posix_spawn_file_actions_init");
die_errno(posix_spawn_file_actions_adddup2(&file_acts, pipefds[0], 0),
"posix_spawn_file_actions_adddup2");
die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[0]),
"posix_spawn_file_actions_addclose");
die_errno(posix_spawn_file_actions_addclose(&file_acts, pipefds[1]),
"posix_spawn_file_actions_addclose");
die_errno(posix_spawnp(&pl->pid, argv[0], &file_acts, NULL,
(char * const *)argv, environ),
"posix_spawnp: %s", argv[0]);
die_errno(posix_spawn_file_actions_destroy(&file_acts),
"posix_spawn_file_actions_destroy");
if (close(pipefds[0]))
die_errno(errno, "close");
pl->infd = pipefds[1];
}
int finish_pipeline(struct pipeline *pl)
{
int status;
if (close(pl->infd))
die_errno(errno, "close");
if (waitpid(pl->pid, &status, 0) < 0)
die_errno(errno, "waitpid");
return WIFEXITED(status) && WEXITSTATUS(status) == 0;
}
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