1 files changed, 100 insertions, 0 deletions
diff --git a/tools/unix/process.c b/tools/unix/process.c
new file mode 100644
index 0000000..8a02afb
--- /dev/null
+++ b/tools/unix/process.c
@@ -0,0 +1,100 @@
+/*
+ * ***** 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 Developers of the Original Code are LShift Ltd, Cohesive
+ * Financial Technologies LLC, and Rabbit Technologies Ltd.  Portions
+ * created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, Cohesive
+ * Financial Technologies LLC, or Rabbit Technologies Ltd are Copyright
+ * (C) 2007-2008 LShift Ltd, Cohesive Financial Technologies LLC, and
+ * Rabbit Technologies Ltd.
+ *
+ * Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift
+ * Ltd. Portions created by Cohesive Financial Technologies LLC are
+ * Copyright (C) 2007-2010 Cohesive Financial Technologies
+ * LLC. Portions created by Rabbit Technologies Ltd are Copyright (C)
+ * 2007-2010 Rabbit Technologies Ltd.
+ *
+ * Portions created by Tony Garnock-Jones are Copyright (C) 2009-2010
+ * LShift Ltd and Tony Garnock-Jones.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): ______________________________________.
+ *
+ * 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;
+}