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/* -*- C++ -*- */
// $Id$
// Handle_Set.i
// Initialize the bitmask to all 0s and reset the associated fields.
ACE_INLINE void
ACE_Handle_Set::reset (void)
{
ACE_TRACE ("ACE_Handle_Set::reset");
this->max_handle_ = ACE_INVALID_HANDLE;
this->size_ = 0;
FD_ZERO (&this->mask_);
}
// Returns the number of the large bit.
ACE_INLINE ACE_HANDLE
ACE_Handle_Set::max_set (void) const
{
ACE_TRACE ("ACE_Handle_Set::max_set");
return this->max_handle_;
}
// Checks whether handle is enabled.
ACE_INLINE int
ACE_Handle_Set::is_set (ACE_HANDLE handle) const
{
ACE_TRACE ("ACE_Handle_Set::is_set");
return FD_ISSET (handle, &this->mask_);
}
// Enables the handle.
ACE_INLINE void
ACE_Handle_Set::set_bit (ACE_HANDLE handle)
{
ACE_TRACE ("ACE_Handle_Set::set_bit");
if (!this->is_set (handle))
{
#if defined(ACE_WIN32)
FD_SET ((SOCKET) handle, &this->mask_);
#else /* !ACE_WIN32 */
FD_SET (handle, &this->mask_);
this->size_++;
if (handle > this->max_handle_)
this->max_handle_ = handle;
#endif /* ACE_WIN32 */
}
}
// Disables the handle.
ACE_INLINE void
ACE_Handle_Set::clr_bit (ACE_HANDLE handle)
{
ACE_TRACE ("ACE_Handle_Set::clr_bit");
if (this->is_set (handle))
{
#if defined(ACE_WIN32)
FD_CLR ((SOCKET)handle, &this->mask_);
#else /* !ACE_WIN32 */
FD_CLR (handle, &this->mask_);
this->size_--;
if (handle == this->max_handle_)
this->set_max (this->max_handle_);
#endif /* ACE_WIN32 */
}
}
// Returns a count of the number of enabled bits.
ACE_INLINE int
ACE_Handle_Set::num_set (void) const
{
ACE_TRACE ("ACE_Handle_Set::num_set");
#if defined (ACE_WIN32)
return this->mask_.fd_count;
#else /* !ACE_WIN32 */
return this->size_;
#endif /* ACE_WIN32 */
}
// Returns a pointer to the underlying fd_set.
ACE_INLINE
ACE_Handle_Set::operator fd_set *()
{
ACE_TRACE ("ACE_Handle_Set::operator ACE_FD_SET_TYPE *");
return (fd_set *) &this->mask_;
}
ACE_INLINE ACE_HANDLE
ACE_Handle_Set_Iterator::operator () (void)
{
ACE_TRACE ("ACE_Handle_Set_Iterator::operator");
#if defined (ACE_WIN32)
if (this->handle_index_ < this->handles_.mask_.fd_count)
// Return the handle and advance the iterator.
return (ACE_HANDLE) this->handles_.mask_.fd_array[this->handle_index_++];
else
return ACE_INVALID_HANDLE;
#else /* !ACE_WIN32 */
// No sense searching further than the max_handle_ + 1;
ACE_HANDLE maxhandlep1 = this->handles_.max_handle_ + 1;
if (this->handle_index_ >= maxhandlep1)
// We've seen all the handles we're interested in seeing for this
// iterator.
return ACE_INVALID_HANDLE;
else
{
ACE_HANDLE result = this->handle_index_;
// Increment the iterator and advance to the next bit in this
// word.
this->handle_index_++;
this->word_val_ = (this->word_val_ >> 1) & ACE_MSB_MASK;
// If we've examined all the bits in this word, we'll go onto
// the next word.
if (this->word_val_ == 0)
{
// Start the handle_index_ at the beginning of the next word
// and then loop until we've found the first non-zero bit or
// we run past the <maxhandlep1> of the bitset.
for (this->handle_index_ = ++this->word_num_ * ACE_Handle_Set::WORDSIZE;
this->handle_index_ < maxhandlep1
&& this->handles_.mask_.fds_bits[this->word_num_] == 0;
this->word_num_++)
this->handle_index_ += ACE_Handle_Set::WORDSIZE;
// If the bit index becomes >= the maxhandlep1 that means
// there weren't any more bits set that we want to consider.
// Therefore, we'll just store the maxhandlep1, which will
// cause <operator()> to return <ACE_INVALID_HANDLE>
// immediately next time it's called.
if (this->handle_index_ >= maxhandlep1)
{
this->handle_index_ = maxhandlep1;
return result;
}
else
// Load the bits of the next word.
this->word_val_ = this->handles_.mask_.fds_bits[this->word_num_];
}
// Loop until we get <word_val_> to have its least significant
// bit enabled, keeping track of which <handle_index> this
// represents (this information is used by subsequent calls to
// <operator()>).
for (;
ACE_BIT_DISABLED (this->word_val_, 1);
this->handle_index_++)
this->word_val_ = (this->word_val_ >> 1) & ACE_MSB_MASK;
return result;
}
#endif /* ACE_WIN32 */
}
ACE_INLINE void
ACE_Handle_Set_Iterator::operator++ (void)
{
ACE_TRACE ("ACE_Handle_Set_Iterator::operator++");
// This is now a no-op.
}
ACE_INLINE
ACE_Handle_Set_Iterator::ACE_Handle_Set_Iterator (const ACE_Handle_Set &hs)
: handles_ (hs),
handle_index_ (0),
word_num_ (-1)
{
ACE_TRACE ("ACE_Handle_Set_Iterator::ACE_Handle_Set_Iterator");
#if !defined(ACE_WIN32)
// No sense searching further than the max_handle_ + 1;
ACE_HANDLE maxhandlep1 = this->handles_.max_handle_ + 1;
// Loop until we've found the first non-zero bit or we run past the
// <maxhandlep1> of the bitset.
while (this->handle_index_ < maxhandlep1
&& this->handles_.mask_.fds_bits[++this->word_num_] == 0)
this->handle_index_ += ACE_Handle_Set::WORDSIZE;
// If the bit index becomes >= the maxhandlep1 that means there weren't
// any bits set. Therefore, we'll just store the maxhandlep1, which will
// cause <operator()> to return <ACE_INVALID_HANDLE> immediately.
if (this->handle_index_ >= maxhandlep1)
this->handle_index_ = maxhandlep1;
else
// Loop until we get <word_val_> to have its least significant bit
// enabled, keeping track of which <handle_index> this represents
// (this information is used by <operator()>).
for (this->word_val_ = this->handles_.mask_.fds_bits[this->word_num_];
ACE_BIT_DISABLED (this->word_val_, 1)
&& this->handle_index_ < maxhandlep1;
this->handle_index_++)
this->word_val_ = (this->word_val_ >> 1) & ACE_MSB_MASK;
#endif /* !ACE_WIN32 */
}
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