/* -*- C++ -*- */
// $Id$

// Miscellaneous static methods used throughout ACE.

ASYS_INLINE ssize_t
ACE::send (ACE_HANDLE handle, const void *buf, size_t len)
{
  ACE_TRACE ("ACE::send");

#if defined (ACE_WIN32)
  return ACE_OS::send (handle, (const char *) buf, len);
#else
  return ACE_OS::write (handle, (const char *) buf, len);
#endif /* ACE_WIN32 */
}

ASYS_INLINE ssize_t
ACE::send (ACE_HANDLE handle, const void *buf, size_t len, int flags)
{
  ACE_TRACE ("ACE::send");
  return ACE_OS::send (handle, (const char *) buf, len, flags);
}

ASYS_INLINE ssize_t
ACE::recv (ACE_HANDLE handle, void *buf, size_t len)
{
  ACE_TRACE ("ACE::recv");
#if defined (ACE_WIN32)
    return ACE_OS::recv (handle, (char *) buf, len);
#else
    return ACE_OS::read (handle, (char *) buf, len);
#endif /* ACE_WIN32 */
}

ASYS_INLINE ssize_t
ACE::recv (ACE_HANDLE handle, void *buf, size_t len, int flags)
{
  ACE_TRACE ("ACE::recv");

  return ACE_OS::recv (handle, (char *) buf, len, flags);
}

ASYS_INLINE char *
ACE::strecpy (char *s, const char *t)
{
  ACE_TRACE ("ACE::strecpy");
  register char *dscan = s;
  register const char *sscan = t;

  while ((*dscan++ = *sscan++) != '\0')
    continue;

  return dscan - 1;
}

#if defined (ACE_HAS_UNICODE)
ASYS_INLINE wchar_t *
ACE::strecpy (wchar_t *s, const wchar_t *t)
{
  ACE_TRACE ("ACE::strecpy");
  register wchar_t *dscan = s;
  register const wchar_t *sscan = t;

  while ((*dscan++ = *sscan++) != '\0')
    continue;

  return dscan - 1;
}
#endif /* ACE_HAS_UNICODE */

// Return flags currently associated with handle.

ASYS_INLINE int
ACE::get_flags (ACE_HANDLE handle)
{
  ACE_TRACE ("ACE::get_flags");

#if defined (ACE_LACKS_FCNTL)
  // ACE_OS::fcntl is not supported, e.g., on VxWorks.  It
  // would be better to store ACE's notion of the flags
  // associated with the handle, but this works for now.
  ACE_UNUSED_ARG (handle);
  return 0;
#else
  return ACE_OS::fcntl (handle, F_GETFL, 0);
#endif /* ACE_LACKS_FCNTL */
}

ASYS_INLINE u_long
ACE::log2 (u_long num)
{
  u_long log = 0;

  for (;
       num > 0;
       log++)
    num >>= 1;

  return log;
}

ASYS_INLINE char 
ACE::nibble2hex (u_int n)
{
  return ACE::hex_chars_[n & 0x0f];
}

ASYS_INLINE u_char 
ACE::hex2byte (char c)
{
  if (isdigit (c))
    return (u_char) (c - '0');
  else if (islower (c))
    return (u_char) (10 + c - 'a');
  else
    return (u_char) (10 + c - 'A');
}