我正在尝试学习gtkmm,并决定尝试gtkmm 2.4,因为在Debian上似乎很难使3.0正常工作。无论如何,我正在尝试的示例在这里:http://developer.gnome.org/gtkmm-tutorial/2.24/sec-helloworld.html.en。它可以编译成功并且运行良好,但是当我关闭它时,valgrind报告了很多泄漏,大致如下(点击按钮一次后):
如果我使用C-c停止程序或点击关闭窗口按钮(在这种情况下,由于窗口管理器,我必须使用Shift-Meta-C来关闭窗口),就会发生这种情况。这是MySQL连接器不允许您删除最后一个指针的预期行为吗?在这种情况下,似乎有很多内存无法被“允许”删除?还是我错过了什么非常简单的东西?
以下是我的代码:(将HelloWorld更改为Test) main.cpp:
==4254== Memcheck, a memory error detector
==4254== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==4254== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for copyright info
==4254== Command: ./bin/jmb
==4254==
Hello World
==4254==
==4254== HEAP SUMMARY:
==4254== in use at exit: 942,940 bytes in 7,968 blocks
==4254== total heap usage: 14,191 allocs, 6,223 frees, 3,272,961 bytes allocated
==4254==
==4254== LEAK SUMMARY:
==4254== definitely lost: 2,620 bytes in 6 blocks
==4254== indirectly lost: 5,936 bytes in 187 blocks
==4254== possibly lost: 358,625 bytes in 1,775 blocks
==4254== still reachable: 575,759 bytes in 6,000 blocks
==4254== suppressed: 0 bytes in 0 blocks
==4254== Rerun with --leak-check=full to see details of leaked memory
==4254==
==4254== For counts of detected and suppressed errors, rerun with: -v
==4254== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 9 from 9)
如果我使用C-c停止程序或点击关闭窗口按钮(在这种情况下,由于窗口管理器,我必须使用Shift-Meta-C来关闭窗口),就会发生这种情况。这是MySQL连接器不允许您删除最后一个指针的预期行为吗?在这种情况下,似乎有很多内存无法被“允许”删除?还是我错过了什么非常简单的东西?
以下是我的代码:(将HelloWorld更改为Test) main.cpp:
#include "gui/Test.hpp"
#include <gtkmm/main.h>
int main(int argc, char **argv)
{
Gtk::Main kit(argc, argv);
Test t;
Gtk::Main::run(t);
return 0;
}
Test.hpp:
#pragma once
#include <gtkmm/button.h>
#include <gtkmm/window.h>
class Test
: public Gtk::Window
{
public:
Test();
virtual ~Test();
protected:
//Signal handlers:
void on_button_clicked();
//Member widgets:
Gtk::Button m_button;
};
Test.cpp:
#include "Test.hpp"
#include <iostream>
Test::Test()
: m_button("Hello World") // creates a new button with label "Hello World".
{
// Sets the border width of the window.
set_border_width(10);
// When the button receives the "clicked" signal, it will call the
// on_button_clicked() method defined below.
m_button.signal_clicked().connect(sigc::mem_fun(*this,
&Test::on_button_clicked));
// This packs the button into the Window (a container).
add(m_button);
// The final step is to display this newly created widget...
m_button.show();
}
Test::~Test()
{
}
void Test::on_button_clicked()
{
std::cout << "Hello World" << std::endl;
}
提前感谢您!
valgrind --leak-check=full --leak-resolution=high --track-origins=yes
可以获得更多细节。 - Jonathan Wakely