modernc.org/cc@v1.0.1/v2/headers/linux_arm/usr/include/arm-linux-gnueabihf/sys/wait.h (about)

     1  /* Copyright (C) 1991-2016 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 <signal.h>
    29  /* These macros could also be defined in <stdlib.h>.  */
    30  #if !defined _STDLIB_H || (!defined __USE_XOPEN && !defined __USE_XOPEN2K8)
    31  /* This will define the `W*' macros for the flag
    32     bits to `waitpid', `wait3', and `wait4'.  */
    33  #include <bits/waitflags.h>
    34  /* This will define all the `__W*' macros.  */
    35  #include <bits/waitstatus.h>
    36  #define WEXITSTATUS(status)	__WEXITSTATUS (status)
    37  #define WTERMSIG(status)	__WTERMSIG (status)
    38  #define WSTOPSIG(status)	__WSTOPSIG (status)
    39  #define WIFEXITED(status)	__WIFEXITED (status)
    40  #define WIFSIGNALED(status)	__WIFSIGNALED (status)
    41  #define WIFSTOPPED(status)	__WIFSTOPPED (status)
    42  #ifdef __WIFCONTINUED
    43  #define WIFCONTINUED(status)	__WIFCONTINUED (status)
    44  #endif
    45  #endif				/* <stdlib.h> not included.  */
    46  #ifdef	__USE_MISC
    47  #define WCOREFLAG		__WCOREFLAG
    48  #define WCOREDUMP(status)	__WCOREDUMP (status)
    49  #define W_EXITCODE(ret, sig)	__W_EXITCODE (ret, sig)
    50  #define W_STOPCODE(sig)	__W_STOPCODE (sig)
    51  #endif
    52  /* Wait for a child to die.  When one does, put its status in *STAT_LOC
    53     and return its process ID.  For errors, return (pid_t) -1.
    54  
    55     This function is a cancellation point and therefore not marked with
    56     __THROW.  */
    57  extern __pid_t wait(int *__stat_loc);
    58  
    59  #ifdef	__USE_MISC
    60  /* Special values for the PID argument to `waitpid' and `wait4'.  */
    61  #define WAIT_ANY	(-1)	/* Any process.  */
    62  #define WAIT_MYPGRP	0	/* Any process in my process group.  */
    63  #endif
    64  
    65  /* Wait for a child matching PID to die.
    66     If PID is greater than 0, match any process whose process ID is PID.
    67     If PID is (pid_t) -1, match any process.
    68     If PID is (pid_t) 0, match any process with the
    69     same process group as the current process.
    70     If PID is less than -1, match any process whose
    71     process group is the absolute value of PID.
    72     If the WNOHANG bit is set in OPTIONS, and that child
    73     is not already dead, return (pid_t) 0.  If successful,
    74     return PID and store the dead child's status in STAT_LOC.
    75     Return (pid_t) -1 for errors.  If the WUNTRACED bit is
    76     set in OPTIONS, return status for stopped children; otherwise don't.
    77  
    78     This function is a cancellation point and therefore not marked with
    79     __THROW.  */
    80  extern __pid_t waitpid(__pid_t __pid, int *__stat_loc, int __options);
    81  
    82  #if defined __USE_XOPEN || defined __USE_XOPEN2K8
    83  #ifndef __id_t_defined
    84  #include <bits/types.h>
    85  typedef __id_t id_t;
    86  #define __id_t_defined
    87  #endif
    88  
    89  #define __need_siginfo_t
    90  #include <bits/siginfo.h>
    91  
    92  /* Wait for a childing matching IDTYPE and ID to change the status and
    93     place appropriate information in *INFOP.
    94     If IDTYPE is P_PID, match any process whose process ID is ID.
    95     If IDTYPE is P_PGID, match any process whose process group is ID.
    96     If IDTYPE is P_ALL, match any process.
    97     If the WNOHANG bit is set in OPTIONS, and that child
    98     is not already dead, clear *INFOP and return 0.  If successful, store
    99     exit code and status in *INFOP.
   100  
   101     This function is a cancellation point and therefore not marked with
   102     __THROW.  */
   103  extern int waitid(idtype_t __idtype, __id_t __id, siginfo_t * __infop, int __options);
   104  #endif
   105  
   106  #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
   107  /* This being here makes the prototypes valid whether or not
   108     we have already included <sys/resource.h> to define `struct rusage'.  */
   109  struct rusage;
   110  
   111  /* Wait for a child to exit.  When one does, put its status in *STAT_LOC and
   112     return its process ID.  For errors return (pid_t) -1.  If USAGE is not
   113     nil, store information about the child's resource usage there.  If the
   114     WUNTRACED bit is set in OPTIONS, return status for stopped children;
   115     otherwise don't.  */
   116  extern __pid_t wait3(int *__stat_loc, int __options, struct rusage *__usage) __THROWNL;
   117  #endif
   118  
   119  #ifdef __USE_MISC
   120  /* PID is like waitpid.  Other args are like wait3.  */
   121  extern __pid_t wait4(__pid_t __pid, int *__stat_loc, int __options, struct rusage *__usage) __THROWNL;
   122  #endif				/* Use misc.  */
   123  
   124  __END_DECLS
   125  #endif				/* sys/wait.h  */