我尝试编译libwnck 的介绍的第一个例子:
#include <libwnck/libwnck.h>
int main (int argc, char **argv)
{
WnckScreen *screen;
WnckWindow *active_window;
GList *window_l;
gdk_init (&argc, &argv);
screen = wnck_screen_get_default ();
wnck_screen_force_update (screen);
active_window = wnck_screen_get_active_window (screen);
for (window_l = wnck_screen_get_windows (screen); window_l != NULL; window_l = window_l->next)
{
WnckWindow *window = WNCK_WINDOW (window_l->data);
g_print ("%s%s\n", wnck_window_get_name (window),
window == active_window ? " (active)" : "");
}
wnck_shutdown();
}
使用此命令行:
gcc -o testwnck testwnck.cpp -DWNCK_I_KNOW_THIS_IS_UNSTABLE `pkg-config --libs libwnck-3.0` `pkg-config --cflags libwnck-3.0`
但是当我通过 valgrind 运行它时,会出现很多错误。例如:
==20365== 96 bytes in 2 blocks are possibly lost in loss record 876 of 1,019
==20365== at 0x4C28F40: malloc (vg_replace_malloc.c:296)
==20365== by 0x6F6E0A0: g_malloc (in /usr/lib64/libglib-2.0.so.0.4200.0)
==20365== by 0x6F84BB5: g_memdup (in /usr/lib64/libglib-2.0.so.0.4200.0)
==20365== by 0x6CFD364: type_iface_vtable_base_init_Wm (in /usr/lib64/libgobject-2.0.so.0.4200.0)
==20365== by 0x6CFE5BC: g_type_class_ref (in /usr/lib64/libgobject-2.0.so.0.4200.0)
==20365== by 0x6CE79D4: g_object_new_valist (in /usr/lib64/libgobject-2.0.so.0.4200.0)
==20365== by 0x6CE7BD3: g_object_new (in /usr/lib64/libgobject-2.0.so.0.4200.0)
==20365== by 0x6745E6B: gdk_pixbuf_new_from_data (in /usr/lib64/libgdk_pixbuf-2.0.so.0.3000.8)
==20365== by 0x4E60681: scaled_from_pixdata (in /usr/lib64/libwnck-3.so.0.2.2)
==20365== by 0x4E62DE7: _wnck_read_icons (in /usr/lib64/libwnck-3.so.0.2.2)
==20365== by 0x4E57F74: get_icons (in /usr/lib64/libwnck-3.so.0.2.2)
==20365== by 0x4E58DC6: force_update_now (in /usr/lib64/libwnck-3.so.0.2.2)
在从主函数返回之前添加一个调用wnck_shutdown()
没有帮助。我能做些什么来抑制这些错误?
编辑:我也尝试过使用 valgrind 的 gtk 抑制文件,但我仍然有错误。