#ifndef _GETRUSAGE_H
#define _GETRUSAGE_H

#define ENODATA         61
#define	RUSAGE_SELF	     0
#define	RUSAGE_CHILDREN	-1

typedef struct
{
    long            tv_sec;
    long            tv_usec;
} timeval;

typedef struct rusage
{
    timeval  ru_utime;   /* user time used                      */
    timeval  ru_stime;   /* system time used                    */
    long     ru_maxrss;  /* integral max resident set size      */
    long     ru_ixrss;   /* integral shared text memory size    */
    long     ru_idrss;   /* integral unshared data size         */
    long     ru_isrss;   /* integral unshared stack size        */
    long     ru_minflt;  /* page reclaims                       */
    long     ru_majflt;  /* page faults                         */
    long     ru_nswap;   /* swaps                               */
    long     ru_inblock; /* block input operations              */
    long     ru_oublock; /* block output operations             */
    long     ru_msgsnd;  /* messages sent                       */
    long     ru_msgrcv;  /* messages received                   */
    long     ru_nsignals;/* signals received                    */
    long     ru_nvcsw;   /* voluntary context switches          */
    long     ru_nivcsw;  /* involuntary context switches        */
} rusage;

int getrusage(int who, rusage *usage);

#endif