2001-09-27 02:45:50 +08:00
|
|
|
/*
|
|
|
|
|
|
|
|
@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
|
|
|
|
|
|
|
|
*/
|
|
|
|
|
2000-07-27 07:24:05 +08:00
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
#include "config.h"
|
|
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
|
|
#include <sys/wait.h>
|
|
|
|
#endif
|
|
|
|
|
1999-05-03 15:29:11 +08:00
|
|
|
int
|
|
|
|
waitpid (pid, stat_loc, options)
|
|
|
|
int pid, *stat_loc, options;
|
|
|
|
{
|
|
|
|
for (;;)
|
|
|
|
{
|
|
|
|
int wpid = wait(stat_loc);
|
|
|
|
if (wpid == pid || wpid == -1)
|
|
|
|
return wpid;
|
|
|
|
}
|
|
|
|
}
|