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authorschmidt <douglascraigschmidt@users.noreply.github.com>1999-07-16 22:05:50 +0000
committerschmidt <douglascraigschmidt@users.noreply.github.com>1999-07-16 22:05:50 +0000
commit9ee6337357f40e44ebbaa61f8552277f840f7ca4 (patch)
tree8bad01d8653ad73452988ed6d14aa473af9bdcd3 /ace/Malloc_T.cpp
parent3b4d59d72a7e3b9574edbfb540dd44a73fad7731 (diff)
downloadATCD-9ee6337357f40e44ebbaa61f8552277f840f7ca4.tar.gz
.
Diffstat (limited to 'ace/Malloc_T.cpp')
-rw-r--r--ace/Malloc_T.cpp182
1 files changed, 96 insertions, 86 deletions
diff --git a/ace/Malloc_T.cpp b/ace/Malloc_T.cpp
index 946e026b256..939bbd4d594 100644
--- a/ace/Malloc_T.cpp
+++ b/ace/Malloc_T.cpp
@@ -101,17 +101,18 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::print_stats (void) const
return;
this->cb_ptr_->malloc_stats_.dump ();
ACE_DEBUG ((LM_DEBUG,
- ASYS_TEXT (" (%P|%t) contents of freelist:\n")));
+ ASYS_TEXT ("(%P|%t) contents of freelist:\n")));
- for (ACE_Malloc_Header::HEADER_PTR currp = this->cb_ptr_->freep_->s_.next_block_;
+ for (ACE_Malloc_Header *currp = ACE_POINTER_CAST (this->cb_ptr_->freep_->s_.next_block_);
;
- currp = currp->s_.next_block_)
+ currp = ACE_POINTER_CAST (currp->s_.next_block_))
{
ACE_DEBUG ((LM_DEBUG,
- ASYS_TEXT (" (%P|%t) ptr = %u, ACE_Malloc_Header units = %d, byte units = %d\n"),
- currp, currp->s_.size_,
+ ASYS_TEXT ("(%P|%t) ptr = %u, ACE_Malloc_Header units = %d, byte units = %d\n"),
+ currp,
+ currp->s_.size_,
currp->s_.size_ * sizeof (ACE_Malloc_Header)));
- if (currp == this->cb_ptr_->freep_)
+ if (currp == ACE_POINTER_CAST (this->cb_ptr_->freep_))
break;
}
}
@@ -150,12 +151,12 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::open (void)
first_time);
if (this->cb_ptr_ == 0)
ACE_ERROR_RETURN ((LM_ERROR,
- ASYS_TEXT (" (%P|%t) %p\n"),
+ ASYS_TEXT ("(%P|%t) %p\n"),
ASYS_TEXT ("init_acquire failed")),
-1);
else if (first_time)
{
- // ACE_DEBUG ((LM_DEBUG, ASYS_TEXT (" (%P|%t) first time in, control block = %u\n"), this->cb_ptr_));
+ // ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%P|%t) first time in, control block = %u\n"), this->cb_ptr_));
#if defined (ACE_HAS_MALLOC_STATS)
// Call the constructor on the ACE_LOCK, using the placement
@@ -163,23 +164,30 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::open (void)
new ((void *) &this->cb_ptr_->malloc_stats_) ACE_Malloc_Stats;
#endif /* ACE_HAS_MALLOC_STATS */
+#if defined (ACE_HAS_POSITION_INDEPENDENT_MALLOC)
// Initialize the freelist pointer to point to the dummy
- // ACE_Malloc_Header.
+ // <ACE_Malloc_Header>.
+ new ((void *) &this->cb_ptr_->freep_) ACE_Malloc_Header::HEADER_PTR (&this->cb_ptr_->base_);
+ new ((void *) &this->cb_ptr_->name_head_) ACE_Based_Pointer<ACE_Name_Node>;
+#else
+ // Initialize the freelist pointer to point to the dummy
+ // <ACE_Malloc_Header>.
this->cb_ptr_->freep_ = &this->cb_ptr_->base_;
+ // initialize the name list to 0
+#endif /* ACE_HAS_POSITION_INDEPENDENT_MALLOC */
- // Initialize the dummy ACE_Malloc_Header to point to itself.
- this->cb_ptr_->freep_->s_.size_ = 0;
- this->cb_ptr_->freep_->s_.next_block_ = this->cb_ptr_->freep_;
+ this->cb_ptr_->name_head_ = (ACE_Name_Node *) 0;
- // initialize the name list to 0
- this->cb_ptr_->name_head_ = 0;
+ // Initialize the dummy <ACE_Malloc_Header> to point to itself.
+ this->cb_ptr_->freep_->s_.size_ = 0;
+ this->cb_ptr_->freep_->s_.next_block_ = ACE_POINTER_CAST (this->cb_ptr_->freep_);
if (rounded_bytes > (sizeof *this->cb_ptr_ + sizeof (ACE_Malloc_Header)))
{
// If we've got any extra space at the end of the control
// block, then skip past the dummy ACE_Malloc_Header to
// point at the first free block.
- ACE_Malloc_Header::HEADER_PTR p (this->cb_ptr_->freep_ + 1);
+ ACE_Malloc_Header *p = ACE_POINTER_CAST (this->cb_ptr_->freep_) + 1;
// Why aC++ in 64-bit mode can't grok this, I have no
// idea... but it ends up with an extra bit set which makes
@@ -197,12 +205,10 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::open (void)
AMS (++this->cb_ptr_->malloc_stats_.nblocks_);
AMS (++this->cb_ptr_->malloc_stats_.ninuse_);
- // Skip over the ACE_Malloc_Header when returning pointer.
- ACE_Malloc_Header::HEADER_PTR tmp (p + 1);
// Insert the newly allocated chunk of memory into the free
- // list. Note that this triggers operator void *() if we're
- // using the ACE_POSITION_INDEPENDENT_MALLOC configuration.
- this->shared_free ((void *) tmp);
+ // list. Skip over the ACE_Malloc_Header when returning
+ // pointer.
+ this->shared_free (p + 1);
}
}
return 0;
@@ -265,7 +271,7 @@ template <ACE_MEM_POOL_1, class ACE_LOCK> int
ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::remove (void)
{
ACE_TRACE ("ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::remove");
- // ACE_DEBUG ((LM_DEBUG, ASYS_TEXT (" (%P|%t) destroying ACE_Malloc\n")));
+ // ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%P|%t) destroying ACE_Malloc\n")));
int result = 0;
#if defined (ACE_HAS_MALLOC_STATS)
@@ -298,20 +304,20 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_malloc (size_t nbytes)
// Begin the search starting at the place in the freelist where the
// last block was found.
- ACE_Malloc_Header::HEADER_PTR prevp = this->cb_ptr_->freep_;
- ACE_Malloc_Header::HEADER_PTR currp = prevp->s_.next_block_;
+ ACE_Malloc_Header *prevp = ACE_POINTER_CAST (this->cb_ptr_->freep_);
+ ACE_Malloc_Header *currp = ACE_POINTER_CAST (prevp->s_.next_block_);
// Search the freelist to locate a block of the appropriate size.
for (int i = 0;
- ; i++, prevp = currp, currp = currp->s_.next_block_)
+ ; i++, prevp = currp, currp = ACE_POINTER_CAST (currp->s_.next_block_))
{
if (currp->s_.size_ >= nunits) // Big enough
{
AMS (++this->cb_ptr_->malloc_stats_.ninuse_);
if (currp->s_.size_ == nunits)
// Exact size, just update the pointers.
- prevp->s_.next_block_ = currp->s_.next_block_;
+ prevp->s_.next_block_ = ACE_POINTER_CAST (currp->s_.next_block_);
else
{
// Remaining chunk is larger than requested block, so
@@ -324,13 +330,9 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_malloc (size_t nbytes)
this->cb_ptr_->freep_ = prevp;
// Skip over the ACE_Malloc_Header when returning pointer.
- ACE_Malloc_Header::HEADER_PTR tmp (currp + 1);
- // Insert the newly allocated chunk of memory into the free
- // list. Note that this triggers operator void *() if we're
- // using the ACE_POSITION_INDEPENDENT_MALLOC configuration.
- return (void *) tmp;
+ return currp + 1;
}
- else if (currp == this->cb_ptr_->freep_)
+ else if (currp == ACE_POINTER_CAST (this->cb_ptr_->freep_))
{
// We've wrapped around freelist without finding a block.
// Therefore, we need to ask the memory pool for a new chunk
@@ -338,9 +340,11 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_malloc (size_t nbytes)
size_t chunk_bytes = 0;
- if ((currp = (ACE_Malloc_Header *)
- this->memory_pool_.acquire (nunits * sizeof (ACE_Malloc_Header),
- chunk_bytes)) != 0)
+ currp = (ACE_Malloc_Header *)
+ this->memory_pool_.acquire (nunits * sizeof (ACE_Malloc_Header),
+ chunk_bytes);
+
+ if (currp != 0)
{
AMS (++this->cb_ptr_->malloc_stats_.nblocks_);
AMS (++this->cb_ptr_->malloc_stats_.nchunks_);
@@ -349,17 +353,15 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_malloc (size_t nbytes)
// Compute the chunk size in ACE_Malloc_Header units.
currp->s_.size_ = chunk_bytes / sizeof (ACE_Malloc_Header);
- // Skip over the ACE_Malloc_Header when returning pointer.
- ACE_Malloc_Header::HEADER_PTR tmp (currp + 1);
- // Insert the newly allocated chunk of memory into the free
- // list. Note that this triggers operator void *() if we're
- // using the ACE_POSITION_INDEPENDENT_MALLOC configuration.
- this->shared_free ((void *) tmp);
- currp = this->cb_ptr_->freep_;
+ // Insert the newly allocated chunk of memory into the
+ // free list. Skip over the ACE_Malloc_Header when
+ // returning pointer.
+ this->shared_free (currp + 1);
+ currp = ACE_POINTER_CAST (this->cb_ptr_->freep_);
}
else
ACE_ERROR_RETURN ((LM_ERROR,
- ASYS_TEXT (" (%P|%t) %p\n"),
+ ASYS_TEXT ("(%P|%t) %p\n"),
ASYS_TEXT ("malloc")),
0);
}
@@ -403,37 +405,38 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_free (void *ap)
return;
// Adjust AP to point to the block ACE_Malloc_Header
- ACE_Malloc_Header::HEADER_PTR blockp ((ACE_Malloc_Header *) ap - 1);
- ACE_Malloc_Header::HEADER_PTR currp = this->cb_ptr_->freep_;
+ ACE_Malloc_Header *blockp = (ACE_Malloc_Header *) ap - 1;
+ ACE_Malloc_Header *currp = ACE_POINTER_CAST (this->cb_ptr_->freep_);
// Search until we find the location where the blocks belongs. Note
// that addresses are kept in sorted order.
for (;
- blockp <= currp || blockp >= currp->s_.next_block_;
- currp = currp->s_.next_block_)
+ blockp <= currp || blockp >= ACE_POINTER_CAST (currp->s_.next_block_);
+ currp = ACE_POINTER_CAST (currp->s_.next_block_))
{
- if (currp >= currp->s_.next_block_
- && (blockp > currp || blockp < currp->s_.next_block_))
- // Freed block at the start or the end of the memory pool
+ if (currp >= ACE_POINTER_CAST (currp->s_.next_block_)
+ && (blockp > currp || blockp < ACE_POINTER_CAST (currp->s_.next_block_)))
+ // Freed block at the start or the end of the memory pool.
break;
}
- // Join to upper neighbor
- if (blockp + blockp->s_.size_ == currp->s_.next_block_)
+ // Join to upper neighbor.
+ if (blockp + blockp->s_.size_ == ACE_POINTER_CAST (currp->s_.next_block_))
{
AMS (--this->cb_ptr_->malloc_stats_.nblocks_);
blockp->s_.size_ += currp->s_.next_block_->s_.size_;
- blockp->s_.next_block_ = currp->s_.next_block_->s_.next_block_;
+ blockp->s_.next_block_ = ACE_POINTER_CAST (currp->s_.next_block_->s_.next_block_);
}
else
- blockp->s_.next_block_ = currp->s_.next_block_;
+ blockp->s_.next_block_ = ACE_POINTER_CAST (currp->s_.next_block_);
- if (currp + currp->s_.size_ == blockp) // Join to lower neighbor
+ // Join to lower neighbor.
+ if (currp + currp->s_.size_ == blockp)
{
AMS (--this->cb_ptr_->malloc_stats_.nblocks_);
currp->s_.size_ += blockp->s_.size_;
- currp->s_.next_block_ = blockp->s_.next_block_;
+ currp->s_.next_block_ = ACE_POINTER_CAST (blockp->s_.next_block_);
}
else
currp->s_.next_block_ = blockp;
@@ -452,10 +455,10 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_find (const char *name)
if (this->cb_ptr_ == 0)
return 0;
- for (ACE_Name_Node *node = this->cb_ptr_->name_head_;
+ for (ACE_Name_Node *node = ACE_POINTER_CAST (this->cb_ptr_->name_head_);
node != 0;
- node = node->next_)
- if (ACE_OS::strcmp (node->name_,
+ node = ACE_POINTER_CAST (node->next_))
+ if (ACE_OS::strcmp (node->name (),
name) == 0)
return node;
@@ -470,28 +473,31 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::shared_bind (const char *name,
return -1;
// Combine the two allocations into one to avoid overhead...
- ACE_Name_Node *new_node;
+ ACE_Name_Node *new_node = 0;
ACE_ALLOCATOR_RETURN (new_node,
(ACE_Name_Node *)
this->shared_malloc (sizeof (ACE_Name_Node) + ACE_OS::strlen (name) + 1),
-1);
- // This is a clever trick ;-)
+ // This is a clever trick that skips over the <ACE_Name_Node> chunk
+ // and points to where the string name goes.
new_node->name_ = (char *) (new_node + 1);
// Insert new node at the head of the list. Note that (new_node) is
// *not* a cast, it's operator placement new.
ACE_NEW_RETURN (this->cb_ptr_->name_head_,
- (new_node) ACE_Name_Node (name, pointer,
- this->cb_ptr_->name_head_),
+ (new_node) ACE_Name_Node (name,
+ ACE_reinterpret_cast (char *,
+ pointer),
+ ACE_POINTER_CAST (this->cb_ptr_->name_head_)),
-1);
return 0;
}
template <ACE_MEM_POOL_1, class ACE_LOCK> int
ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::trybind (const char *name,
- void *&pointer)
+ void *&pointer)
{
ACE_TRACE ("ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::trybind");
ACE_WRITE_GUARD_RETURN (ACE_LOCK, ace_mon, this->lock_, -1);
@@ -503,15 +509,16 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::trybind (const char *name,
else
{
// Found it, so return a copy of the current entry.
- pointer = node->pointer_;
+ pointer = ACE_reinterpret_cast (void *,
+ ACE_POINTER_CAST (node->pointer_));
return 1;
}
}
template <ACE_MEM_POOL_1, class ACE_LOCK> int
ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::bind (const char *name,
- void *pointer,
- int duplicates)
+ void *pointer,
+ int duplicates)
{
ACE_TRACE ("ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::bind");
ACE_WRITE_GUARD_RETURN (ACE_LOCK, ace_mon, this->lock_, -1);
@@ -528,7 +535,8 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::bind (const char *name,
}
template <ACE_MEM_POOL_1, class ACE_LOCK> int
-ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::find (const char *name, void *&pointer)
+ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::find (const char *name,
+ void *&pointer)
{
ACE_TRACE ("ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::find");
@@ -540,7 +548,8 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::find (const char *name, void *&pointer)
return -1;
else
{
- pointer = node->pointer_;
+ pointer = ACE_reinterpret_cast (void *,
+ ACE_POINTER_CAST (node->pointer_));
return 0;
}
}
@@ -567,10 +576,10 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::avail_chunks (size_t size) const
// Avoid dividing by 0...
size = size == 0 ? 1 : size;
- for (ACE_Malloc_Header::HEADER_PTR currp = this->cb_ptr_->freep_->s_.next_block_;
- currp != this->cb_ptr_->freep_;
- currp = currp->s_.next_block_)
- // calculate how many will fit in this block.
+ for (ACE_Malloc_Header *currp = ACE_POINTER_CAST (this->cb_ptr_->freep_->s_.next_block_);
+ currp != ACE_POINTER_CAST (this->cb_ptr_->freep_);
+ currp = ACE_POINTER_CAST (currp->s_.next_block_))
+ // Calculate how many will fit in this block.
if (currp->s_.size_ * sizeof (ACE_Malloc_Header) >= size)
count += currp->s_.size_ * sizeof (ACE_Malloc_Header) / size;
@@ -597,18 +606,18 @@ ACE_Malloc<ACE_MEM_POOL_2, ACE_LOCK>::unbind (const char *name, void *&pointer)
ACE_Name_Node *prev = 0;
- for (ACE_Name_Node *curr = this->cb_ptr_->name_head_;
+ for (ACE_Name_Node *curr = ACE_POINTER_CAST (this->cb_ptr_->name_head_);
curr != 0;
- curr = curr->next_)
+ curr = ACE_POINTER_CAST (curr->next_))
{
- if (ACE_OS::strcmp (curr->name_, name) == 0)
+ if (ACE_OS::strcmp (curr->name (), name) == 0)
{
- pointer = curr->pointer_;
+ pointer = ACE_POINTER_CAST (curr->pointer_);
if (prev == 0)
- this->cb_ptr_->name_head_ = curr->next_;
+ this->cb_ptr_->name_head_ = ACE_POINTER_CAST (curr->next_);
else
- prev->next_ = curr->next_;
+ prev->next_ = ACE_POINTER_CAST (curr->next_);
// This will free up both the node and the name due to our
// clever trick in <bind>!
@@ -654,9 +663,10 @@ ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::ACE_Malloc_Iterator (ACE_Malloc<A
{
ACE_TRACE ("ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::ACE_Malloc_Iterator");
// Cheap trick to make code simple.
+ // @@ Doug, this looks like trouble...
ACE_Name_Node temp;
this->curr_ = &temp;
- this->curr_->next_ = malloc_.cb_ptr_->name_head_;
+ this->curr_->next_ = ACE_POINTER_CAST (malloc_.cb_ptr_->name_head_);
this->advance ();
}
@@ -669,14 +679,14 @@ ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::~ACE_Malloc_Iterator (void)
template <ACE_MEM_POOL_1, class ACE_LOCK> int
ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::next (void *&next_entry,
- char *&name)
+ const char *&name)
{
ACE_TRACE ("ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::next");
if (this->curr_ != 0)
{
- next_entry = this->curr_->pointer_;
- name = this->curr_->name_;
+ next_entry = ACE_POINTER_CAST (this->curr_->pointer_);
+ name = this->curr_->name ();
return 1;
}
else
@@ -690,7 +700,7 @@ ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::next (void *&next_entry)
if (this->curr_ != 0)
{
- next_entry = this->curr_->pointer_;
+ next_entry = ACE_POINTER_CAST (this->curr_->pointer_);
return 1;
}
else
@@ -710,14 +720,14 @@ ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::advance (void)
{
ACE_TRACE ("ACE_Malloc_Iterator<ACE_MEM_POOL_2, ACE_LOCK>::advance");
- this->curr_ = this->curr_->next_;
+ this->curr_ = ACE_POINTER_CAST (this->curr_->next_);
if (this->name_ == 0)
return this->curr_ != 0;
while (this->curr_ != 0
- && ACE_OS::strcmp (this->name_, this->curr_->name_) != 0)
- this->curr_ = this->curr_->next_;
+ && ACE_OS::strcmp (this->name_, this->curr_->name ()) != 0)
+ this->curr_ = ACE_POINTER_CAST (this->curr_->next_);
return this->curr_ != 0;
}