Clutter 不支持多线程
看这个简单的例子：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #include <clutter/clutter.h>static gpointergen_slide (gpointer data){ return clutter_cairo_texture_new (800.0, 600.0);}static gbooleanon_stage_button_press (ClutterActor *stage, ClutterEvent *event, gpointer data){ g_thread_new ("test", gen_slide, NULL); return TRUE; }intmain(int argc, char *argv[]){ if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS) return 1; ClutterColor stage_color = { 0x21, 0x43, 0x5e, 0xff }; ClutterActor *stage = clutter_stage_get_default (); clutter_stage_set_title (CLUTTER_STAGE (stage), "CairoTexture!"); clutter_actor_set_size (stage, 400, 400); clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color); clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE); clutter_actor_show_all (stage); g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL); g_signal_connect (stage, "button-press-event", G_CALLBACK (on_stage_button_press), NULL); clutter_main (); return 0;} |
编译它：
1 | gcc `pkg-config --cflags --libs clutter-1.0` test.c |
这个程序需要 >=glib-2.32 版本的支持。运行程序时，鼠标点一下窗口内部区域，在我这里程序便会崩溃。不知是不是只有我遇到这个问题。
这样子，Cikada 就没法实现单独加载 pdf 页面的线程了。