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+/***
+ This file is part of systemd.
+
+ Copyright 2017 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+
+#include "time-util.h"
+
+typedef int (*gather_stdout_callback_t) (int fd, void *arg);
+
+enum {
+ STDOUT_GENERATE, /* from generators to helper process */
+ STDOUT_COLLECT, /* from helper process to main process */
+ STDOUT_CONSUME, /* process data in main process */
+ _STDOUT_CONSUME_MAX,
+};
+
+int execute_directories(
+ const char* const* directories,
+ usec_t timeout,
+ gather_stdout_callback_t const callbacks[_STDOUT_CONSUME_MAX],
+ void* const callback_args[_STDOUT_CONSUME_MAX],
+ char *argv[]);
+
+extern const gather_stdout_callback_t gather_environment[_STDOUT_CONSUME_MAX];