Qt: move packet list cache from record to model

Change-Id: Idf6a10374382c8521eb205c801a72af329e5d0d2
Reviewed-on: https://code.wireshark.org/review/31528
Petri-Dish: Michal Labedzki <michal.labedzki@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>

ui/qt/models/packet_list_model.cpp

@@ -8,6 +8,7 @@
  */
 
 #include <algorithm>
+#include <glib.h>
 
 #include "packet_list_model.h"
 
@@ -49,7 +50,6 @@ PacketListModel::PacketListModel(QObject *parent, capture_file *cf) :
     idle_dissection_row_(0)
 {
     setCaptureFile(cf);
-    PacketListRecord::clearStringPool();
 
     physical_rows_.reserve(reserved_packets_);
     visible_rows_.reserve(reserved_packets_);
@@ -60,11 +60,14 @@ PacketListModel::PacketListModel(QObject *parent, capture_file *cf) :
             this, &PacketListModel::emitItemHeightChanged,
             Qt::QueuedConnection);
     idle_dissection_timer_ = new QElapsedTimer();
+
+    string_cache_pool_ = g_string_chunk_new(1 * 1024 * 1024);
 }
 
 PacketListModel::~PacketListModel()
 {
     delete idle_dissection_timer_;
+    g_string_chunk_free(string_cache_pool_);
 }
 
 void PacketListModel::setCaptureFile(capture_file *cf)
@@ -130,7 +133,7 @@ void PacketListModel::clear() {
     visible_rows_.resize(0);
     new_visible_rows_.resize(0);
     number_to_row_.resize(0);
-    PacketListRecord::clearStringPool();
+    g_string_chunk_clear(string_cache_pool_);
     endResetModel();
     max_row_height_ = 0;
     max_line_count_ = 1;
@@ -697,7 +700,7 @@ void PacketListModel::dissectIdle(bool reset)
 // line counts?
 gint PacketListModel::appendPacket(frame_data *fdata)
 {
-    PacketListRecord *record = new PacketListRecord(fdata);
+    PacketListRecord *record = new PacketListRecord(fdata, string_cache_pool_);
     gint pos = -1;
 
 #ifdef DEBUG_PACKET_LIST_MODEL

ui/qt/models/packet_list_model.h

@@ -111,6 +111,8 @@ private:
     QElapsedTimer *idle_dissection_timer_;
     int idle_dissection_row_;
 
+    struct _GStringChunk *string_cache_pool_;
+
     bool isNumericColumn(int column);
 
 private slots:

ui/qt/models/packet_list_record.cpp

@@ -36,14 +36,15 @@ public:
 QMap<int, int> PacketListRecord::cinfo_column_;
 unsigned PacketListRecord::col_data_ver_ = 1;
 
-PacketListRecord::PacketListRecord(frame_data *frameData) :
+PacketListRecord::PacketListRecord(frame_data *frameData, struct _GStringChunk *string_cache_pool) :
     col_text_(0),
     fdata_(frameData),
     lines_(1),
     line_count_changed_(false),
     data_ver_(0),
     colorized_(false),
-    conv_(NULL)
+    conv_(NULL),
+    string_cache_pool_(string_cache_pool)
 {
 }
 
@@ -197,14 +198,6 @@ void PacketListRecord::dissect(capture_file *cap_file, bool dissect_color)
     wtap_rec_cleanup(&rec);
 }
 
-// This assumes only one packet list. We might want to move this to
-// PacketListModel (or replace this with a wmem allocator).
-struct _GStringChunk *PacketListRecord::string_pool_ = g_string_chunk_new(1 * 1024 * 1024);
-void PacketListRecord::clearStringPool()
-{
-    g_string_chunk_clear(string_pool_);
-}
-
 //#define MINIMIZE_STRING_COPYING 1
 void PacketListRecord::cacheColumnStrings(column_info *cinfo)
 {
@@ -298,7 +291,7 @@ void PacketListRecord::cacheColumnStrings(column_info *cinfo)
         // https://git.gnome.org/browse/glib/tree/glib/gstringchunk.c
         // We might be better off adding the equivalent functionality to
         // wmem_tree.
-        col_text_->append(g_string_chunk_insert_const(string_pool_, col_str));
+        col_text_->append(g_string_chunk_insert_const(string_cache_pool_, col_str));
         for (int i = 0; col_str[i]; i++) {
             if (col_str[i] == '\n') col_lines++;
         }

ui/qt/models/packet_list_record.h

@@ -31,7 +31,7 @@ class ColumnTextList;
 class PacketListRecord
 {
 public:
-    PacketListRecord(frame_data *frameData);
+    PacketListRecord(frame_data *frameData, struct _GStringChunk *string_cache_pool);
 
     // Allocate our records using wmem.
     static void *operator new(size_t size);
@@ -52,8 +52,6 @@ public:
     inline int lineCount() { return lines_; }
     inline int lineCountChanged() { return line_count_changed_; }
 
-    static void clearStringPool();
-
 private:
     /** The column text for some columns */
     ColumnTextList *col_text_;
@@ -72,11 +70,11 @@ private:
     /** Conversation. Used by RelatedPacketDelegate */
     struct conversation *conv_;
 
+    struct _GStringChunk *string_cache_pool_;
+
     void dissect(capture_file *cap_file, bool dissect_color = false);
+
     void cacheColumnStrings(column_info *cinfo);
-
-    static struct _GStringChunk *string_pool_;
-
 };
 
 #endif // PACKET_LIST_RECORD_H