modernc.org/cc@v1.0.1/v2/headers/linux_386/usr/include/i386-linux-gnu/sys/wait.h (about)

     1  /* Copyright (C) 1991-2018 Free Software Foundation, Inc.
     2     This file is part of the GNU C Library.
     3  
     4     The GNU C Library is free software; you can redistribute it and/or
     5     modify it under the terms of the GNU Lesser General Public
     6     License as published by the Free Software Foundation; either
     7     version 2.1 of the License, or (at your option) any later version.
     8  
     9     The GNU C Library is distributed in the hope that it will be useful,
    10     but WITHOUT ANY WARRANTY; without even the implied warranty of
    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12     Lesser General Public License for more details.
    13  
    14     You should have received a copy of the GNU Lesser General Public
    15     License along with the GNU C Library; if not, see
    16     <http://www.gnu.org/licenses/>.  */
    17  
    18  /*
    19   *	POSIX Standard: 3.2.1 Wait for Process Termination	<sys/wait.h>
    20   */
    21  
    22  #ifndef	_SYS_WAIT_H
    23  #define	_SYS_WAIT_H	1
    24  
    25  #include <features.h>
    26  
    27  __BEGIN_DECLS
    28  #include <bits/types.h>
    29  #ifndef __pid_t_defined
    30  typedef __pid_t pid_t;
    31  # define __pid_t_defined
    32  #endif
    33  
    34  #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
    35  # include <signal.h>
    36  #endif
    37  
    38  #if defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8
    39  /* Some older standards require the contents of struct rusage to be
    40     defined here.  */
    41  # include <bits/types/struct_rusage.h>
    42  #endif
    43  
    44  /* These macros could also be defined in <stdlib.h>.  */
    45  #if !defined _STDLIB_H || (!defined __USE_XOPEN && !defined __USE_XOPEN2K8)
    46  /* This will define the `W*' macros for the flag
    47     bits to `waitpid', `wait3', and `wait4'.  */
    48  # include <bits/waitflags.h>
    49  
    50  /* This will define all the `__W*' macros.  */
    51  # include <bits/waitstatus.h>
    52  
    53  # define WEXITSTATUS(status)	__WEXITSTATUS (status)
    54  # define WTERMSIG(status)	__WTERMSIG (status)
    55  # define WSTOPSIG(status)	__WSTOPSIG (status)
    56  # define WIFEXITED(status)	__WIFEXITED (status)
    57  # define WIFSIGNALED(status)	__WIFSIGNALED (status)
    58  # define WIFSTOPPED(status)	__WIFSTOPPED (status)
    59  # ifdef __WIFCONTINUED
    60  #  define WIFCONTINUED(status)	__WIFCONTINUED (status)
    61  # endif
    62  #endif				/* <stdlib.h> not included.  */
    63  
    64  #ifdef	__USE_MISC
    65  # define WCOREFLAG		__WCOREFLAG
    66  # define WCOREDUMP(status)	__WCOREDUMP (status)
    67  # define W_EXITCODE(ret, sig)	__W_EXITCODE (ret, sig)
    68  # define W_STOPCODE(sig)	__W_STOPCODE (sig)
    69  #endif
    70  
    71  /* Wait for a child to die.  When one does, put its status in *STAT_LOC
    72     and return its process ID.  For errors, return (pid_t) -1.
    73  
    74     This function is a cancellation point and therefore not marked with
    75     __THROW.  */
    76  extern __pid_t wait(int *__stat_loc);
    77  
    78  #ifdef	__USE_MISC
    79  /* Special values for the PID argument to `waitpid' and `wait4'.  */
    80  # define WAIT_ANY	(-1)	/* Any process.  */
    81  # define WAIT_MYPGRP	0	/* Any process in my process group.  */
    82  #endif
    83  
    84  /* Wait for a child matching PID to die.
    85     If PID is greater than 0, match any process whose process ID is PID.
    86     If PID is (pid_t) -1, match any process.
    87     If PID is (pid_t) 0, match any process with the
    88     same process group as the current process.
    89     If PID is less than -1, match any process whose
    90     process group is the absolute value of PID.
    91     If the WNOHANG bit is set in OPTIONS, and that child
    92     is not already dead, return (pid_t) 0.  If successful,
    93     return PID and store the dead child's status in STAT_LOC.
    94     Return (pid_t) -1 for errors.  If the WUNTRACED bit is
    95     set in OPTIONS, return status for stopped children; otherwise don't.
    96  
    97     This function is a cancellation point and therefore not marked with
    98     __THROW.  */
    99  extern __pid_t waitpid(__pid_t __pid, int *__stat_loc, int __options);
   100  
   101  #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
   102  # ifndef __id_t_defined
   103  typedef __id_t id_t;
   104  #  define __id_t_defined
   105  # endif
   106  
   107  # include <bits/types/siginfo_t.h>
   108  
   109  /* Wait for a childing matching IDTYPE and ID to change the status and
   110     place appropriate information in *INFOP.
   111     If IDTYPE is P_PID, match any process whose process ID is ID.
   112     If IDTYPE is P_PGID, match any process whose process group is ID.
   113     If IDTYPE is P_ALL, match any process.
   114     If the WNOHANG bit is set in OPTIONS, and that child
   115     is not already dead, clear *INFOP and return 0.  If successful, store
   116     exit code and status in *INFOP.
   117  
   118     This function is a cancellation point and therefore not marked with
   119     __THROW.  */
   120  extern int waitid(idtype_t __idtype, __id_t __id, siginfo_t * __infop, int __options);
   121  #endif
   122  
   123  #if defined __USE_MISC \
   124      || (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K)
   125  /* This being here makes the prototypes valid whether or not
   126     we have already included <sys/resource.h> to define `struct rusage'.  */
   127  struct rusage;
   128  
   129  /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
   130     return its process ID.  For errors return (pid_t) -1.  If USAGE is not
   131     nil, store information about the child's resource usage there.  If the
   132     WUNTRACED bit is set in OPTIONS, return status for stopped children;
   133     otherwise don't.  */
   134  extern __pid_t wait3(int *__stat_loc, int __options, struct rusage *__usage) __THROWNL;
   135  #endif
   136  
   137  #ifdef __USE_MISC
   138  /* PID is like waitpid.  Other args are like wait3.  */
   139  extern __pid_t wait4(__pid_t __pid, int *__stat_loc, int __options, struct rusage *__usage) __THROWNL;
   140  #endif				/* Use misc.  */
   141  
   142  __END_DECLS
   143  #endif				/* sys/wait.h  */