src/basic/exec-util.h

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2017 Zbigniew Jędrzejewski-Szmek
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <stdbool.h>
  21
  22 #include "time-util.h"
  23
  24 typedef int (*gather_stdout_callback_t) (int fd, void *arg);
  25
  26 enum {
  27         STDOUT_GENERATE,   /* from generators to helper process */
  28         STDOUT_COLLECT,    /* from helper process to main process */
  29         STDOUT_CONSUME,    /* process data in main process */
  30         _STDOUT_CONSUME_MAX,
  31 };
  32
  33 int execute_directories(
  34                 const char* const* directories,
  35                 usec_t timeout,
  36                 gather_stdout_callback_t const callbacks[_STDOUT_CONSUME_MAX],
  37                 void* const callback_args[_STDOUT_CONSUME_MAX],
  38                 char *argv[]);
  39
  40 extern const gather_stdout_callback_t gather_environment[_STDOUT_CONSUME_MAX];