/*@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}, asdoes the return value. The third argument is unused in @libib{}.@end deftypefn*/#ifdef HAVE_CONFIG_H#include "config.h"#endif#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>#ifdef HAVE_SYS_WAIT_H#include <sys/wait.h>#endif#ifdef __MINGW32__#include <process.h>#define wait(s) _cwait(s,pid,_WAIT_CHILD)#endifpid_twaitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED){ for (;;) { int wpid = wait(stat_loc); if (wpid == pid || wpid == -1) return wpid; }}
/*
@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
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#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>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef __MINGW32__
#include <process.h>
#define wait(s) _cwait(s,pid,_WAIT_CHILD)
#endif
pid_t
waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED)
{
for (;;)
{
int wpid = wait(stat_loc);
if (wpid == pid || wpid == -1)
return wpid;
}
}