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/* $Revision: 1.4 $
**
*/
#include <stdio.h>
#include <sys/types.h>
#include "configdata.h"
#include "clibrary.h"
#include <sys/wait.h>
#if defined(DO_USE_UNION_WAIT)
typedef union wait WAITER;
#if defined(WEXITSTATUS)
#define WAITVAL(x) (WEXITSTATUS(x))
#else
#define WAITVAL(x) ((x).w_retcode)
#endif /* defined(WEXITSTATUS) */
#else
typedef int WAITER;
#define WAITVAL(x) (((x) >> 8) & 0xFF)
#endif /* defined(DO_USE_UNION_WAIT) */
PID_T
waitnb(statusp)
int *statusp;
{
WAITER w;
PID_T pid;
#if defined(DO_HAVE_WAITPID)
pid = waitpid(-1, &w, WNOHANG);
#endif /* defined(DO_HAVE_WAITPID) */
#if defined(DONT_HAVE_WAITPID)
pid = wait3(&w, WNOHANG, (struct rusage *)NULL);
#endif /* defined(DONT_HAVE_WAITPID) */
if (pid > 0)
*statusp = WAITVAL(w);
return pid;
}
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