Avoid deleting hashrate object

src/workers/Hashrate.cpp

@@ -48,18 +48,10 @@ inline static const char *format(double h, char *buf, size_t size)
 
 Hashrate::Hashrate(size_t threads, xmrig::Controller *controller) :
     m_highest(0.0),
-    m_threads(threads),
+    m_threads(0),
     m_controller(controller)
 {
-    m_counts     = new uint64_t*[threads];
-    m_timestamps = new uint64_t*[threads];
-    m_top        = new uint32_t[threads];
-
-    for (size_t i = 0; i < threads; i++) {
-        m_counts[i]     = new uint64_t[kBucketSize]();
-        m_timestamps[i] = new uint64_t[kBucketSize]();
-        m_top[i]        = 0;
-    }
+    set_threads(threads);
 
     const int printTime = controller->config()->printTime();
 
@@ -71,8 +63,9 @@ Hashrate::Hashrate(size_t threads, xmrig::Controller *controller) :
     }
 }
 
-Hashrate::~Hashrate()
+void Hashrate::set_threads(const size_t threads)
 {
+    if (m_threads) {
         for (size_t i = 0; i < m_threads; i++) {
             delete [] m_counts[i];
             delete [] m_timestamps[i];
@@ -82,6 +75,19 @@ Hashrate::~Hashrate()
         delete [] m_top;
     }
 
+    m_threads = threads;
+
+    m_counts     = new uint64_t*[threads];
+    m_timestamps = new uint64_t*[threads];
+    m_top        = new uint32_t[threads];
+
+    for (size_t i = 0; i < threads; i++) {
+        m_counts[i]     = new uint64_t[kBucketSize]();
+        m_timestamps[i] = new uint64_t[kBucketSize]();
+        m_top[i]        = 0;
+    }
+}
+
 
 double Hashrate::calc(size_t ms) const
 {

src/workers/Hashrate.h

@@ -44,7 +44,7 @@ public:
     };
 
     Hashrate(size_t threads, xmrig::Controller *controller);
-    ~Hashrate();
+    void set_threads(size_t threads);
     double calc(size_t ms) const;
     double calc(size_t threadId, size_t ms) const;
     void add(size_t threadId, uint64_t count, uint64_t timestamp);

src/workers/Workers.cpp

@@ -210,14 +210,6 @@ void Workers::start(xmrig::Controller *controller)
 
 void Workers::soft_stop() // stop current workers leaving uv stuff intact (used in switch_algo)
 {
-    uv_timer_stop(&m_timer);
-
-    if (m_hashrate) {
-        m_hashrate->stop();
-        delete m_hashrate;
-        m_hashrate = nullptr;
-    }
-
     m_sequence = 0;
     m_paused   = 0;
 
@@ -262,7 +254,7 @@ void Workers::switch_algo(const xmrig::Algorithm& algorithm)
        m_status.ways += thread->multiway();
     }
 
-    m_hashrate = new Hashrate(threads.size(), m_controller);
+    m_hashrate.set_threads(threads.size());
 
     uint32_t offset = 0;
 
@@ -273,8 +265,6 @@ void Workers::switch_algo(const xmrig::Algorithm& algorithm)
         m_workers.push_back(handle);
         handle->start(Workers::onReady);
     }
-
-    uv_timer_start(&m_timer, Workers::onTick, 500, 500);
 }