cbcintlinprog added

1 files changed, 176 insertions, 0 deletions

diff --git a/thirdparty/linux/include/coin/CoinAlloc.hpp b/thirdparty/linux/include/coin/CoinAlloc.hpp
new file mode 100644
index 0000000..8f6b08c
--- /dev/null
+++ b/thirdparty/linux/include/coin/CoinAlloc.hpp
@@ -0,0 +1,176 @@
+/* $Id: CoinAlloc.hpp 1438 2011-06-09 18:14:12Z stefan $ */
+// Copyright (C) 2007, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CoinAlloc_hpp
+#define CoinAlloc_hpp
+
+#include "CoinUtilsConfig.h"
+#include <cstdlib>
+
+#if !defined(COINUTILS_MEMPOOL_MAXPOOLED)
+#  define COINUTILS_MEMPOOL_MAXPOOLED -1
+#endif
+
+#if (COINUTILS_MEMPOOL_MAXPOOLED >= 0)
+
+#ifndef COINUTILS_MEMPOOL_ALIGNMENT
+#define COINUTILS_MEMPOOL_ALIGNMENT 16
+#endif
+
+/* Note:
+   This memory pool implementation assumes that sizeof(size_t) and
+   sizeof(void*) are both <= COINUTILS_MEMPOOL_ALIGNMENT.
+   Choosing an alignment of 4 will cause segfault on 64-bit platforms and may
+   lead to bad performance on 32-bit platforms. So 8 is a mnimum recommended
+   alignment. Probably 16 does not waste too much space either and may be even
+   better for performance. One must play with it.
+*/
+
+//#############################################################################
+
+#if (COINUTILS_MEMPOOL_ALIGNMENT == 16)
+static const std::size_t CoinAllocPtrShift = 4;
+static const std::size_t CoinAllocRoundMask = ~((std::size_t)15);
+#elif (COINUTILS_MEMPOOL_ALIGNMENT == 8)
+static const std::size_t CoinAllocPtrShift = 3;
+static const std::size_t CoinAllocRoundMask = ~((std::size_t)7);
+#else
+#error "COINUTILS_MEMPOOL_ALIGNMENT must be defined as 8 or 16 (or this code needs to be changed :-)"
+#endif
+
+//#############################################################################
+
+#ifndef COIN_MEMPOOL_SAVE_BLOCKHEADS
+#  define COIN_MEMPOOL_SAVE_BLOCKHEADS 0
+#endif
+
+//#############################################################################
+
+class CoinMempool 
+{
+private:
+#if (COIN_MEMPOOL_SAVE_BLOCKHEADS == 1)
+   char** block_heads;
+   std::size_t block_num;
+   std::size_t max_block_num;
+#endif
+#if defined(COINUTILS_PTHREADS) && (COINUTILS_PTHREAD == 1)
+  pthread_mutex_t mutex_;
+#endif
+  int last_block_size_;
+  char* first_free_;
+  const std::size_t entry_size_;
+
+private:
+  CoinMempool(const CoinMempool&);
+  CoinMempool& operator=(const CoinMempool&);
+
+private:
+  char* allocate_new_block();
+  inline void lock_mutex() {
+#if defined(COINUTILS_PTHREADS) && (COINUTILS_PTHREAD == 1)
+    pthread_mutex_lock(&mutex_);
+#endif
+  }
+  inline void unlock_mutex() {
+#if defined(COINUTILS_PTHREADS) && (COINUTILS_PTHREAD == 1)
+    pthread_mutex_unlock(&mutex_);
+#endif
+  }
+
+public:
+  CoinMempool(std::size_t size = 0);
+  ~CoinMempool();
+
+  char* alloc();
+  inline void dealloc(char *p) 
+  {
+    char** pp = (char**)p;
+    lock_mutex();
+    *pp = first_free_;
+    first_free_ = p;
+    unlock_mutex();
+  }
+};
+
+//#############################################################################
+
+/** A memory pool allocator.
+
+    If a request arrives for allocating \c n bytes then it is first
+    rounded up to the nearest multiple of \c sizeof(void*) (this is \c
+    n_roundup), then one more \c sizeof(void*) is added to this
+    number. If the result is no more than maxpooled_ then
+    the appropriate pool is used to get a chunk of memory, if not,
+    then malloc is used. In either case, the size of the allocated
+    chunk is written into the first \c sizeof(void*) bytes and a
+    pointer pointing afterwards is returned.
+*/
+
+class CoinAlloc
+{
+private:
+  CoinMempool* pool_;
+  int maxpooled_;
+public:
+  CoinAlloc();
+  ~CoinAlloc() {}
+
+  inline void* alloc(const std::size_t n)
+  {
+    if (maxpooled_ <= 0) {
+      return std::malloc(n);
+    }
+    char *p = NULL;
+    const std::size_t to_alloc =
+      ((n+COINUTILS_MEMPOOL_ALIGNMENT-1) & CoinAllocRoundMask) +
+      COINUTILS_MEMPOOL_ALIGNMENT;
+    CoinMempool* pool = NULL;
+    if (maxpooled_ > 0 && to_alloc >= (size_t)maxpooled_) {
+      p = static_cast<char*>(std::malloc(to_alloc));
+      if (p == NULL) throw std::bad_alloc();
+    } else {
+      pool = pool_ + (to_alloc >> CoinAllocPtrShift);
+      p = pool->alloc();
+    }
+    *((CoinMempool**)p) = pool;
+    return static_cast<void*>(p+COINUTILS_MEMPOOL_ALIGNMENT);
+  }
+
+  inline void dealloc(void* p)
+  {
+    if (maxpooled_ <= 0) {
+      std::free(p);
+      return;
+    }
+    if (p) {
+      char* base = static_cast<char*>(p)-COINUTILS_MEMPOOL_ALIGNMENT;
+      CoinMempool* pool = *((CoinMempool**)base);
+      if (!pool) {
+	std::free(base);
+      } else {
+	pool->dealloc(base);
+      }
+    }
+  }
+};
+
+extern CoinAlloc CoinAllocator;
+
+//#############################################################################
+
+#if defined(COINUTILS_MEMPOOL_OVERRIDE_NEW) && (COINUTILS_MEMPOOL_OVERRIDE_NEW == 1)
+void* operator new(std::size_t size) throw (std::bad_alloc);
+void* operator new[](std::size_t) throw (std::bad_alloc);
+void operator delete(void*) throw();
+void operator delete[](void*) throw();
+void* operator new(std::size_t, const std::nothrow_t&) throw();
+void* operator new[](std::size_t, const std::nothrow_t&) throw();
+void operator delete(void*, const std::nothrow_t&) throw();
+void operator delete[](void*, const std::nothrow_t&) throw();
+#endif
+
+#endif /*(COINUTILS_MEMPOOL_MAXPOOLED >= 0)*/
+#endif