add new type for ring buffer

bin/main.cpp

@@ -36,4 +36,6 @@ auto main(int argc, char *argv[]) -> int
     hack::log()(hack::mt::algorithms::max(4, 5));
     hack::log()(hack::mt::algorithms::max(c, b));
   }
+
+  hack::error()("asdfJK");
 }

src/hack/exception/exception.hpp

@@ -5,6 +5,8 @@
 #include "hack/utils/color.hpp"
 #include "hack/exception/title.hpp"
 
+// NOTE
+// вмесо nlohman::json можно поробовать прикрутить https://jqlang.github.io/jq
 namespace hack
 {
   class exception

src/hack/patterns/ring_buffer.hpp

@@ -1,19 +1,23 @@
 #pragma once
 
-#include <array>
+#include <vector>
 #include <mutex>
 #include <optional>
 #include <vector>
 
 namespace hack::patterns
 {
-  template<typename T, std::size_t BUFFER_SIZE>
+  template<typename T>
   class ring_buffer
   {
     using MUTEX = std::lock_guard<std::recursive_mutex>;
 
     public:
-      explicit ring_buffer() = default;
+      explicit ring_buffer(int s)
+      {
+        m_size = s;
+        m_data.resize(m_size);
+      };
 
     public:
       void put(T item) noexcept
@@ -52,13 +56,13 @@ namespace hack::patterns
         if(empty()) return std::nullopt;
 
         auto val = m_data[m_tail];
-        m_tail = (m_tail + 1) % BUFFER_SIZE;
+        m_tail = (m_tail + 1) % m_size;
         m_full = false;
 
         return val;
       }
 
-      std::array<T, BUFFER_SIZE>& get_src() const noexcept
+      std::vector<T>& get_src() const noexcept
       {
         return m_data;
       }
@@ -73,13 +77,13 @@ namespace hack::patterns
       {
          MUTEX lock(m_mutex);
 
-        std::size_t size;
-        if(!m_full) 
-          size = (m_head >= m_tail) ? m_head - m_tail : BUFFER_SIZE - (m_tail - m_head);
+        std::size_t s;
+        if (!m_full) 
+          s = (m_head >= m_tail) ? m_head - m_tail : m_size - (m_tail - m_head);
         else 
-          size = BUFFER_SIZE;
+          s = m_size;
 
-        return size;
+        return s;
       }
 
       void reset() noexcept
@@ -96,14 +100,14 @@ namespace hack::patterns
 
       std::size_t capacity() const noexcept
       {
-        return BUFFER_SIZE;
+        return m_size;
       }
 
     private:
       void head_refresh()
       {
-        if (m_full) m_tail = (m_tail + 1) % BUFFER_SIZE;
-        m_head = (m_head + 1) % BUFFER_SIZE;
+        if (m_full) m_tail = (m_tail + 1) % m_size;
+        m_head = (m_head + 1) % m_size;
         m_full = m_head == m_tail;
       }
     
@@ -113,7 +117,8 @@ namespace hack::patterns
       std::size_t m_tail{ 0 };
 
     private:
+      int m_size;
       mutable std::recursive_mutex m_mutex;
-      mutable std::array<T, BUFFER_SIZE> m_data;
+      mutable std::vector<T> m_data;
   };
 }

tests/patterns/ring_buffer.cpp

@@ -7,7 +7,7 @@ TEST_CASE("patterns")
   SECTION("ring buffer")
   {
     // single value
-    hack::patterns::ring_buffer<int, 10> rb1;
+    hack::patterns::ring_buffer<int> rb1(10);
     REQUIRE(rb1.empty() == true);
 
     for (int i = 1; i < 13; ++i) rb1.put(i);
@@ -36,7 +36,7 @@ TEST_CASE("patterns")
 
     // vector value
     std::vector<int> v { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
-    hack::patterns::ring_buffer<int, 10> rb2;
+    hack::patterns::ring_buffer<int> rb2(10);
     REQUIRE(rb2.empty() == true);
 
     rb2.put(v);