rename src/ as spot/ and use include <spot/...>

* NEWS: Mention the change. * src/: Rename as ... * spot/: ... this, adjust all headers to include <spot/...> instead of "...", and adjust all Makefile.am to search headers from the top-level directory. * HACKING: Add conventions about #include. * spot/sanity/style.test: Add a few more grep to catch cases that do not follow these conventions. * .gitignore, Makefile.am, README, bench/stutter/Makefile.am, bench/stutter/stutter_invariance_formulas.cc, bench/stutter/stutter_invariance_randomgraph.cc, configure.ac, debian/rules, doc/Doxyfile.in, doc/Makefile.am, doc/org/.dir-locals.el.in, doc/org/g++wrap.in, doc/org/init.el.in, doc/org/tut01.org, doc/org/tut02.org, doc/org/tut03.org, doc/org/tut10.org, doc/org/tut20.org, doc/org/tut21.org, doc/org/tut22.org, doc/org/tut30.org, iface/ltsmin/Makefile.am, iface/ltsmin/kripke.test, iface/ltsmin/ltsmin.cc, iface/ltsmin/ltsmin.hh, iface/ltsmin/modelcheck.cc, wrap/python/Makefile.am, wrap/python/ajax/spotcgi.in, wrap/python/spot_impl.i, wrap/python/tests/ltl2tgba.py, wrap/python/tests/randgen.py, wrap/python/tests/run.in: Adjust.
2015-12-04 19:42:23 +01:00 · 2015-12-04 19:42:23 +01:00 · f120dd3206
commit f120dd3206
parent 1fddfe60ec
529 changed files with 1308 additions and 1262 deletions
--- a/spot/misc/fixpool.hh
+++ b/spot/misc/fixpool.hh
@ -0,0 +1,112 @@
+// -*- coding: utf-8 -*-
+// Copyright (C) 2011, 2015 Laboratoire de Recherche et Développement
+// de l'Epita (LRDE)
+//
+// This file is part of Spot, a model checking library.
+//
+// Spot is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// Spot is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+// License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <new>
+#include <cstddef>
+#include <cstdlib>
+#include <cassert>
+
+namespace spot
+{
+
+  /// A fixed-size memory pool implementation.
+  class fixed_size_pool
+  {
+  public:
+    /// Create a pool allocating objects of \a size bytes.
+    fixed_size_pool(size_t size)
+      : freelist_(nullptr), free_start_(nullptr),
+	free_end_(nullptr), chunklist_(nullptr)
+    {
+      const size_t alignement = 2 * sizeof(size_t);
+      size_ = ((size >= sizeof(block_) ? size : sizeof(block_))
+	       + alignement - 1) & ~(alignement - 1);
+    }
+
+    /// Free any memory allocated by this pool.
+    ~fixed_size_pool()
+    {
+      while (chunklist_)
+	{
+	  chunk_* prev = chunklist_->prev;
+	  free(chunklist_);
+	  chunklist_ = prev;
+	}
+    }
+
+    /// Allocate \a size bytes of memory.
+    void*
+    allocate()
+    {
+      block_* f = freelist_;
+      // If we have free blocks available, return the first one.
+      if (f)
+	{
+	  freelist_ = f->next;
+	  return f;
+	}
+
+      // Else, create a block out of the last chunk of allocated
+      // memory.
+
+      // If all the last chunk has been used, allocate one more.
+      if (free_start_ + size_ > free_end_)
+	{
+	  const size_t requested = (size_ > 128 ? size_ : 128) * 8192 - 64;
+	  chunk_* c = reinterpret_cast<chunk_*>(malloc(requested));
+	  if (!c)
+	    throw std::bad_alloc();
+	  c->prev = chunklist_;
+	  chunklist_ = c;
+
+	  free_start_ = c->data_ + size_;
+	  free_end_ = c->data_ + requested;
+	}
+
+      void* res = free_start_;
+      free_start_ += size_;
+      return res;
+    }
+
+    /// \brief Recycle \a size bytes of memory.
+    ///
+    /// Despite the name, the memory is not really deallocated in the
+    /// "delete" sense: it is still owned by the pool and will be
+    /// reused by allocate as soon as possible.  The memory is only
+    /// freed when the pool is destroyed.
+    void
+    deallocate (const void* ptr)
+    {
+      assert(ptr);
+      block_* b = reinterpret_cast<block_*>(const_cast<void*>(ptr));
+      b->next = freelist_;
+      freelist_ = b;
+    }
+
+  private:
+    size_t size_;
+    struct block_ { block_* next; }* freelist_;
+    char* free_start_;
+    char* free_end_;
+    // chunk = several agglomerated blocks
+    union chunk_ { chunk_* prev; char data_[1]; }* chunklist_;
+  };
+}