web indexing prefs: display the current cache size

src/qtgui/confgui/confguiindex.cpp

@@ -32,6 +32,7 @@
 #include <set>
 #include <string>
 #include <functional>
+#include <memory>
 using std::vector;
 using std::set;
 using std::string;
@@ -43,6 +44,8 @@ using std::string;
 #include "rcldb.h"
 #include "execmd.h"
 #include "rclconfig.h"
+#include "webstore.h"
+#include "circache.h"
 
 static const int spacing = 3;
 static const int margin = 3;
@@ -353,8 +356,12 @@ bool ConfIndexW::setupWebHistoryPanel(int idx)
            "file (only waste space at the end)."
             ), -1, 1000*1000); // Max 1TB...
     m_w->enableLink(bparam, cparam);
+    int64_t sz = -1;
+    auto ws = std::unique_ptr<WebStore>(new WebStore(m_rclconf));
+    sz = ws->cc()->size();
     m_w->addBlurb(idx, tr("Note: old pages will be erased to make space for "
-                          "new ones when the maximum size is reached"));
+                          "new ones when the maximum size is reached. "
+                          "Current size: %1").arg(u8s2qs(displayableBytes(sz))));
     m_w->endOfList(idx);
     return true;
 }

src/utils/circache.cpp

@@ -787,6 +787,29 @@ bool CirCache::open(OpMode mode)
     return m_d->readfirstblock();
 }
 
+int64_t CirCache::size()
+{
+    if (m_d == 0) {
+        LOGERR("CirCache::open: null data\n");
+        return -1;
+    }
+    struct stat st;
+    if (m_d->m_fd < 0) {
+        if (stat(m_d->datafn(m_dir).c_str(), &st) < 0) {
+            m_d->m_reason << "CirCache::size: stat(" << m_d->datafn(m_dir) <<
+                ") failed " << "errno " << errno;
+            return -1;
+        }
+    } else {
+        if (fstat(m_d->m_fd, &st) < 0) {
+            m_d->m_reason << "CirCache::open: fstat(" << m_d->datafn(m_dir) <<
+                ") failed " << "errno " << errno;
+            return -1;
+        }
+    }
+    return st.st_size;
+}
+
 class CCScanHookDump : public  CCScanHook {
 public:
     virtual status takeone(int64_t offs, const string& udi,

src/utils/circache.h

@@ -37,8 +37,7 @@
  */
 
 #include <sys/types.h>
-#include <stdint.h>
-
+#include <cstdint>
 #include <string>
 
 class ConfSimple;
@@ -63,6 +62,8 @@ public:
     enum OpMode {CC_OPREAD, CC_OPWRITE};
     virtual bool open(OpMode mode);
 
+    virtual int64_t size();
+    
     virtual std::string getpath();
 
     // Set data to 0 if you just want the header