m4_define(`hm_arg_timeval_out_abs', `')
m4_define(`hm_arg_nullptr', `')
m4_define(`hm_arg_fdset_io', `const fd_set *$1 $3')
m4_define(`hm_arg_must', `')
m4_define(`hm_arg_ign', `')
m4_define(`hm_arg_fcntl_arg', `long arg')
m4_define(`hm_arg_bytes_out', `$3 $4 $6')
m4_define(`hm_arg_addr_out', `int $2 $3')


m4_define(`hm_syscall', `void Q$1(hm_args_checkvoid(`$3'));')





int Hgettimeofday(struct timeval *tv, struct timezone *tz) {
  int r;
  struct timeval diff;

  assert(tv); assert(!tz);

  Qgettimeofday();

  r= gettimeofday(tv,0); if (r) Tfailed("gettimeofday");

  vb.used= 0;
  if (!begin_set) {
    Tvbf("gettimeofday= %ld.%06ld",tv->tv_sec,tv->tv_usec);
    begin= *tv;
    begin_set= 1;
  } else {
    diff.tv_sec= tv->tv_sec - begin.tv_sec;
    diff.tv_usec= tv->tv_usec - begin.tv_usec;
    if (diff.tv_usec < 0) {
      diff.tv_sec -= 1;
      diff.tv_usec += 1000000;
    }
    assert(diff.tv_sec >= 0);
    assert(diff.tv_usec >= 0);
    Tvbf("gettimeofday= +%ld.%06ld",diff.tv_sec,diff.tv_usec);
  }
  Rvb();
  
  return 0;
}

int Hselect(int n, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *to) {
  int r;
  
  Qselect(n,rfds,wfds,efds,to);

  r= select(n,rfds,wfds,efds,to);

  if (r==-1) {
    Rerrno("select");
  } else {
    vb.used= 0;
    Tvbf("select= %d",r);
    Tvbfdset(n,rfds);
    Tvbfdset(n,wfds);
    Tvbfdset(n,efds);
    Rvb();
  }

  if (to) memset(to,0x5a,sizeof(*to));

  return r;
}

int Hsocket(int domain, int type, int protocol) {
  int r;
  
  assert(domain == AF_INET);

  Qsocket(type);
  r= socket(domain,type,protocol); if (r==-1) Tfailed("socket");

  Rf("socket= %d",r);
  return r;
}

int Hfcntl(int fd, int cmd, ...) {
  long arg;
  int r;
  va_list al;

  if (cmd == F_SETFL) {
    va_start(al,cmd);
    arg= va_arg(al,long);
    va_end(al);
    Qfcntl_setfl(fd,cmd,arg);
    r= fcntl(fd, cmd, arg);
  } else {
    Qfcntl_other(fd,cmd);
    r= fcntl(fd, cmd);
  }

  if (r==-1) Tfailed("fcntl");
  Rf("fcntl= %d",r);
  return r;
}

int Hconnect(int fd, struct sockaddr *addr, int addrlen) {
  int r;
  
  Qconnect(fd,addr,addrlen);

  r= connect(fd, addr, addrlen);

  if (r) {
    Rerrno("connect");
  } else {
    Rf("connect= ok");
  }
  return r;
}

int Hclose(int fd) {
  Qclose(fd);
  return 0;
}

int Hsendto(int fd, const void *msg, int msglen, unsigned int flags,
	    const struct sockaddr *addr, int addrlen) {
  int r;
  
  assert(!flags);
  Qsendto(fd,msg,msglen,addr,addrlen);

  r= sendto(fd,msg,msglen,flags,addr,addrlen);
  if (r==-1) {
    Rerrno("sendto");
  } else {
    Rf("sendto= %d",r);
  }
  return r;
}

int Hrecvfrom(int fd, void *buf, int buflen, unsigned int flags,
	      struct sockaddr *addr, int *addrlen) {
  int r;
  
  assert(!flags);
  Qrecvfrom(fd,buflen,*addrlen);

  r= recvfrom(fd,buf,buflen,flags,addr,addrlen);
  if (r==-1) {
    Rerrno("recvfrom");
  } else {
    vb.used= 0;
    Tvbf("recvfrom= %d",r);
    Tvbaddr(addr,*addrlen);
    Tvbbytes(buf,r);
    Rvb();
  }

  return r;
}

int Hread(int fd, void *buf, size_t len) {
  int r;
  
  Qread(fd,len);

  r= read(fd,buf,len);
  if (r==-1) {
    Rerrno("read");
  } else {
    vb.used= 0;
    Tvba("read=");
    Tvbbytes(buf,r);
    Rvb();
  }

  return r;
}

int Hwrite(int fd, const void *buf, size_t len) {
  int r;
  
  Qwrite(fd,buf,len);

  r= write(fd,buf,len);
  if (r==-1) {
    Rerrno("write");
  } else {
    Rf("write= %d",r);
  }
  
  return r;
}