From 94382623428d2e8f11631dff8411fa247014ee65 Mon Sep 17 00:00:00 2001
From: "Charles E. Rolke" <chug@apache.org>
Date: Mon, 17 Oct 2011 20:01:44 +0000
Subject: QPID-3540 align issues in Solaris

Restore original code. Then:

1. Change new/delete to malloc/free. Malloc guarantees alignment for any struct.
2. Change store from char* to void*, solving Solaris complaint.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1185350 13f79535-47bb-0310-9956-ffa450edef68
---
 qpid/cpp/src/qpid/RefCountedBuffer.cpp | 23 +++++++----------------
 qpid/cpp/src/qpid/RefCountedBuffer.h   | 10 +---------
 2 files changed, 8 insertions(+), 25 deletions(-)

(limited to 'qpid/cpp/src')

diff --git a/qpid/cpp/src/qpid/RefCountedBuffer.cpp b/qpid/cpp/src/qpid/RefCountedBuffer.cpp
index 72475f823e..a82e1a02ab 100644
--- a/qpid/cpp/src/qpid/RefCountedBuffer.cpp
+++ b/qpid/cpp/src/qpid/RefCountedBuffer.cpp
@@ -20,33 +20,24 @@
  */
 
 #include "qpid/RefCountedBuffer.h"
+#include <stdlib.h>
 #include <new>
-#include <boost/cstdint.hpp>
 
 namespace qpid {
 
 void RefCountedBuffer::released() const {
     this->~RefCountedBuffer();
-    uintptr_t binStoreRaw = reinterpret_cast<uintptr_t>(this);
-    binStoreRaw -= alignPad;
-    ::delete[] reinterpret_cast<const char*>(binStoreRaw);
+    ::free (reinterpret_cast<void *>(const_cast<RefCountedBuffer *>(this)));
 }
 
 BufferRef RefCountedBuffer::create(size_t n) {
-    char * storeRaw       = ::new char[n + sizeof(RefCountedBuffer) + 
-        refCountedBufferStructAlign];
-    uintptr_t binStoreRaw = reinterpret_cast<uintptr_t>(storeRaw);
-    uintptr_t binStore    = (binStoreRaw +
-        refCountedBufferStructAlign-1) & ~(refCountedBufferStructAlign-1);
-    char * store = reinterpret_cast<char*>(binStore);
-
+    void* store=::malloc (n + sizeof(RefCountedBuffer));
+    if (NULL == store)
+        throw std::bad_alloc();
     new(store) RefCountedBuffer;
-
-    reinterpret_cast<RefCountedBuffer*>((void *)store)->alignPad = binStore - binStoreRaw;
-
-    char* start = store+sizeof(RefCountedBuffer);
+    char* start = reinterpret_cast<char *>(store) + sizeof(RefCountedBuffer);
     return BufferRef(
-        boost::intrusive_ptr<RefCounted>(reinterpret_cast<RefCountedBuffer*>((void *)store)),
+        boost::intrusive_ptr<RefCounted>(reinterpret_cast<RefCountedBuffer*>(store)),
         start, start+n);
 }
 
diff --git a/qpid/cpp/src/qpid/RefCountedBuffer.h b/qpid/cpp/src/qpid/RefCountedBuffer.h
index 67a512d938..f0ea86130b 100644
--- a/qpid/cpp/src/qpid/RefCountedBuffer.h
+++ b/qpid/cpp/src/qpid/RefCountedBuffer.h
@@ -28,14 +28,8 @@
 namespace qpid {
 
 /**
- * Reference-counted byte buffer. Alignment guarantees:
- * The RefCountedBuffer structure is aligned to the 
- *   refCountedBUfferStructAlign byte boundary specified here.
- * The buffer itself has no alignment guarantees.
+ * Reference-counted byte buffer. No alignment guarantees.
  */
-
-static const size_t refCountedBufferStructAlign = 8;
-
 class RefCountedBuffer : public RefCounted {
   public:
     /** Create a reference counted buffer of size n */
@@ -43,8 +37,6 @@ class RefCountedBuffer : public RefCounted {
 
   protected:
     void released() const;
-
-    size_t alignPad;
 };
 
 } // namespace qpid
-- 
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