view libiberty/waitpid.c @ 158:494b0b89df80 default tip

author Shinji KONO <>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
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@deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int)

This is a wrapper around the @code{wait} function.  Any ``special''
values of @var{pid} depend on your implementation of @code{wait}, as
does the return value.  The third argument is unused in @libib{}.

@end deftypefn


#include "config.h"
#include "ansidecl.h"

/* On some systems (such as WindISS), you must include <sys/types.h>
   to get the definition of "pid_t" before you include <sys/wait.h>.  */
#include <sys/types.h>

#include <sys/wait.h>

#ifdef __MINGW32__
#include <process.h>
#define wait(s)  _cwait(s,pid,_WAIT_CHILD)

waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED)
  for (;;)
      int wpid = wait(stat_loc);
      if (wpid == pid || wpid == -1)
	return wpid;