info about shared memory, calls, events and log files.

rktwebview_qt/shm.cpp

@@ -11,8 +11,8 @@ typedef struct __shm_item__ {
 
     ShmPlace next;
     ShmPlace prev;
-    size_t   size;
-
+    int      size;
+    int      alloc_size;
 } ShmItem;
 
 
@@ -69,6 +69,40 @@ public:
         return _mem + place;
     }
 
+public:
+    void info(int &usage, int &free_depth, int &free_size, int &item_depth, int &item_size, double &usage_factor) {
+        enterCritical();
+
+        usage = *_used;
+
+        auto count = [this](ShmPlace *l, int &depth, int &size, double &factor) {
+            depth = 0;
+            size = 0;
+            int alloc_size = 0;
+            ShmPlace p = *l;
+            while (p != SHM_NULL) {
+                //p -= sizeof(ShmItem);
+                ShmItem *i;
+                ref(p, &i);
+                size += i->size;
+                alloc_size += i->alloc_size;
+                depth += 1;
+                p = i->next;
+            }
+            if (size > 0) {
+                factor = (static_cast<double>(alloc_size) / static_cast<double>(size));
+            } else {
+                factor = 1.0;
+            }
+        };
+
+        double x;
+        count(_free_list, free_depth, free_size, x);
+        count(_first, item_depth, item_size, usage_factor);
+
+        leaveCritical();
+    }
+
 public:
     int alloc(size_t bytes) {
         enterCritical();
@@ -104,6 +138,7 @@ public:
                 first_i->prev = p_i;
             }
             i->prev = SHM_NULL;
+            i->alloc_size = bytes;
 
             *_first = p_i;
             place = p_i + sizeof(ShmItem);
@@ -118,6 +153,7 @@ public:
                 *_used = u;
                 i->prev = SHM_NULL;
                 i->size = bytes;
+                i->alloc_size = bytes;
                 i->next = *_first;
                 if (*_first != SHM_NULL) {
                     ShmItem *first_i;
@@ -574,6 +610,11 @@ void *Shm::ref(int place)
     return _shm_api->ref(place);
 }
 
+void Shm::info(int &usage, int &free_depth, int &free_size, int &item_depth, int &item_size, double &usage_factor)
+{
+    _shm_api->info(usage, free_depth, free_size, item_depth, item_size, usage_factor);
+}
+
 void Shm::lock()
 {
     _shm_api->enterCritical();