posix/include/sys/wait.h

   1 /* $Id: wait.h,v 1.3 2002/05/17 01:37:15 hyperion Exp $
   2  */
   3 /*
   4  * sys/wait.h
   5  *
   6  * declarations for waiting. Conforming to the Single UNIX(r) Specification
   7  * Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __SYS_WAIT_H_INCLUDED__
  26 #define __SYS_WAIT_H_INCLUDED__
  27
  28 /* INCLUDES */
  29 #include <signal.h>
  30 #include <sys/resource.h>
  31
  32 /* OBJECTS */
  33
  34 /* TYPES */
  35 typedef enum __tagidtype_t
  36 {
  37  P_ALL,
  38  P_PID,
  39  P_PGID
  40 } idtype_t;
  41
  42 /* CONSTANTS */
  43 /* Possible values for the options argument to waitid() */
  44 #define WEXITED    (0x00000001) /* Wait for processes that have exited */
  45 #define WSTOPPED   (0x00000002) /* Status will be returned for any child that has stopped upon receipt of a signal */
  46 #define WNOWAIT    (0x00000004) /* Keep the process whose status is returned in infop in a waitable state */
  47
  48 #define WCONTINUED (0x00000008) /* Status will be returned for any child that was stopped and has been continued */
  49 #define WNOHANG    (0x00000010) /* Return immediately if there are no children to wait for */
  50 #define WUNTRACED  (0x00000020) /* Report status of stopped child process */
  51
  52 /* PROTOTYPES */
  53 pid_t  wait(int *);
  54 pid_t  wait3(int *, int, struct rusage *);
  55 int    waitid(idtype_t, id_t, siginfo_t *, int);
  56 pid_t  waitpid(pid_t, int *, int);
  57
  58 /* MACROS */
  59 /* Macros for analysis of process status values */
  60 #define WEXITSTATUS(__STATUS__)  (1) /* Return exit status */
  61 #define WIFCONTINUED(__STATUS__) (1) /* True if child has been continued */
  62 #define WIFEXITED(__STATUS__)    (1) /* True if child exited normally */
  63 #define WIFSIGNALED(__STATUS__)  (1) /* True if child exited due to uncaught signal */
  64 #define WIFSTOPPED(__STATUS__)   (1) /* True if child is currently stopped */
  65 #define WSTOPSIG(__STATUS__)     (1) /* Return signal number that caused process to stop */
  66 #define WTERMSIG(__STATUS__)     (1) /* Return signal number that caused process to terminate */
  67
  68 #endif /* __SYS_WAIT_H_INCLUDED__ */
  69
  70 /* EOF */
  71