Merge pull request #18 from mentebinaria/maProc-dev

Version maProc 0.2.5

Author: rem0obb

src/arena.cpp

@@ -1,126 +1,150 @@
 #include "src/include/arena.hpp"
-
 #include <stdexcept>
 
 /**
  * if p_overwrite = true (default) Arena overwrite spaces alocated
  *
  * */
-Arena::Arena ( unsigned int p_size, bool p_overwrite ) : m_size ( p_size ),
-  m_amount ( m_size ),
-  m_overwrite ( p_overwrite )
+Arena::Arena(unsigned int p_size, unsigned int p_limit, bool p_overwrite) : m_size(p_size), 
+                                                                            m_amount(m_size),
+                                                                            m_limit(p_limit),
+                                                                            m_overwrite(p_overwrite)
 {
   m_mem = new char[m_size];
-  m_ptr = m_mem;
+  m_head = m_mem;
+}
+
+Arena::Arena() : m_mem(nullptr),
+                 m_size(0),
+                 m_amount(0),
+                 m_limit(0),
+                 m_head(nullptr),
+                 m_overwrite(0)
+{
 }
 
 /*
  * avoid copy arena, greater than the heap, but it loses performance
  * */
-Arena Arena::operator= ( const Arena &fast )
+Arena Arena::operator=(const Arena &fast)
 {
-  delete [] m_mem;
+  delete[] m_mem;
 
   m_mem = new char[fast.m_size];
-  memcpy ( m_mem, fast.m_mem, fast.m_size );
+  memcpy(m_mem, fast.m_mem, fast.m_size);
   m_size = fast.m_size;
-  m_ptr = fast.m_ptr;
+  m_head = fast.m_head;
   m_amount = fast.m_amount;
   m_overwrite = fast.m_overwrite;
+  m_limit = m_amount;
+
   return *this;
 }
 
-
 /*
  * avoid copy arena, greater than the heap, but it loses performance
-*/
-Arena::Arena ( const Arena &fast )
+ */
+Arena::Arena(const Arena &fast)
 {
-  delete [] m_mem;
-
   m_mem = new char[fast.m_size];
-  memcpy ( m_mem, fast.m_mem, fast.m_size );
+  memcpy(m_mem, fast.m_mem, fast.m_size);
   m_size = fast.m_size;
-  m_ptr = fast.m_ptr;
+  m_head = fast.m_head;
   m_amount = fast.m_amount;
   m_overwrite = fast.m_overwrite;
+  m_limit = m_amount;
 }
 
 Arena::~Arena()
 {
-  delete [] m_mem;
-  m_ptr = m_mem;
+  delete[] m_mem;
   m_mem = nullptr;
+  m_head = m_mem;
 }
 
 /*
  * requestes block in arena passing desired size
  * */
-void *Arena::req ( unsigned int p_amount )
+void *Arena::req(unsigned int p_amount)
 {
-  char *block = nullptr;
-
-  if ( p_amount <= m_amount )
+  if (p_amount <= m_amount)
   {
-    block = ( char * ) m_ptr;
-    m_ptr += p_amount;
-    m_amount -= p_amount;
+    if (p_amount < m_limit && m_overwrite && m_size > m_limit)
+    {
+      realloc(m_limit);
+      goto new_block;
+    }
+    else
+      goto new_block;
   }
-  else if ( p_amount > m_size )
+  else if (p_amount > m_size)
   {
-    dell();
-    mmem ( p_amount );
-    block = ( char * ) m_ptr;
-    m_ptr += p_amount;
-    m_amount -= p_amount;
+    realloc(p_amount);
+    goto new_block;
   }
   else
   {
-    if ( m_overwrite )
+    if (m_overwrite)
     {
       dell();
-      block = ( char * ) m_ptr;
-      m_ptr += p_amount;
-      m_amount -= p_amount;
-
+      goto new_block;
     }
     else
-      throw  std::runtime_error ( "Arena full" );
+      throw std::runtime_error("Arena : Arena is full");
   }
 
+new_block:
+  char *block = const_cast<char*>(m_head);
+  m_head += p_amount;
+  m_amount -= p_amount;
+
   return block;
 }
 
-/* (m_ptr)
+/* (m_head)
  *   ↓
  * (m_mem) -> [   ][   ][   ][   ] ...
- *
+ * return pointer head for initial memory
  * */
 void Arena::dell()
 {
-  m_ptr = m_mem;
+  m_head = m_mem;
   m_amount = m_size;
 }
 
+/*
+ * Delete memory
+ * */
+void Arena::erase()
+{
+  delete[] m_mem;
+  m_mem = nullptr;
+  m_head = m_mem;
+  m_size = 0;
+  m_amount = m_size;
+  m_overwrite = true;
+}
+
 /*
  * return amount free space in arena
  * */
-unsigned int Arena::afree()
+unsigned int Arena::fquantity()
 {
   return m_amount;
 }
 
 /*
- * ... [  ][  ][  ] <- [del] - [alocate] -> [  ][  ][  ][  ] +++
+ * ... [  ][  ][  ] <- [delete] - [alocate more] -> [  ][  ][  ][  ] +++
  * */
-void Arena::mmem ( unsigned int p_amount )
+void Arena::realloc(unsigned int p_amount)
 {
-  if ( m_mem == nullptr )
+  if (m_mem != nullptr)
+    delete[] m_mem;
+  else if(p_amount == 0 || p_amount == m_size)
     return;
 
-  delete [] m_mem;
   m_mem = new char[p_amount];
-  m_ptr = m_mem;
+  m_head = m_mem;
   m_size = p_amount;
   m_amount = m_size;
-}
+}

src/gui/about.ui

@@ -54,8 +54,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>347</width>
-        <height>298</height>
+        <width>353</width>
+        <height>296</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_4">
@@ -68,7 +68,7 @@
           </size>
          </property>
          <property name="text">
-          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-size:12pt; font-weight:600; font-style:italic; color:#54932a;&quot;&gt;maProc v0.2.0&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-size:12pt; font-weight:600; font-style:italic; color:#54932a;&quot;&gt;maProc v0.2.5&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
         </widget>
        </item>
@@ -160,8 +160,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>346</width>
-        <height>298</height>
+        <width>339</width>
+        <height>296</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_2">