/* Wait for process state.

   Copyright (C) 2020 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library 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.

   The GNU C Library 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 the GNU C Library; if not, see

   <https://www.gnu.org/licenses/>.  */

#ifndef SUPPORT_PROCESS_STATE_H

#define SUPPORT_PROCESS_STATE_H

#include <sys/types.h>

enum support_process_state

{

  support_process_state_running      = 0x01,  /* R (running).  */

  support_process_state_sleeping     = 0x02,  /* S (sleeping).  */

  support_process_state_disk_sleep   = 0x04,  /* D (disk sleep).  */

  support_process_state_stopped      = 0x08,  /* T (stopped).  */

  support_process_state_tracing_stop = 0x10,  /* t (tracing stop).  */

  support_process_state_dead         = 0x20,  /* X (dead).  */

  support_process_state_zombie       = 0x40,  /* Z (zombie).  */

  support_process_state_parked       = 0x80,  /* P (parked).  */

};

/* Wait for process PID to reach state STATE.  It can be a combination of

   multiple possible states ('process_state_running | process_state_sleeping')

   where the function return when any of these state are observed.

   For an invalid state not represented by SUPPORT_PROCESS_STATE, it fallbacks

   to a 2 second sleep.  */

void support_process_state_wait (pid_t pid, enum support_process_state state);

#endif