使用5.0.9的minigui库时拖拽窗口会死锁右键菜单显示minigui消息对话框也会死锁

[chenyinen]

之前用的3.2版本现在更新5.0版本跑mg-sample时发现以上问题，minigui运行在线程模式下！

(gdb) bt
#0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1 0x00007ffff7a41aaa in SendSyncMessage (hWnd=, msg=247,
wParam=, lParam=140737488347888) at message.c:1754
#2 0x00007ffff7a1449b in MoveWindow (hWnd=0x60b9f0, x=,
y=, w=800, h=, fPaint=) at window.c:5286
#3 0x00007ffff7a154bc in DefaultPostMsgHandler (lParam=2817498546992,
wParam=240518168592, message=81, pWin=0x60b9f0) at window.c:2267
#4 PreDefMainWinProc (hWnd=0x60b9f0, message=81, wParam=240518168592,
lParam=2817498546992) at window.c:2653
#5 0x00007ffff7a41308 in DispatchMessage (pMsg=pMsg@entry=0x7fffffffe3e0)
at message.c:1386
#6 0x00000000004014bc in MiniGUIAppMain (argc=argc@entry=1,
argv=argv@entry=0x7fffffffe588) at helloworld.c:209
#7 0x0000000000400d13 in main (args=1, argv=0x7fffffffe588) at helloworld.c:174
(gdb) info threads
Id Target Id Frame
3 Thread 0x7ffff5709700 (LWP 1729) "helloworld" 0x00007ffff76bb913 in select ()
at ../sysdeps/unix/syscall-template.S:81
2 Thread 0x7ffff5f0a700 (LWP 1728) "helloworld" pthread_rwlock_wrlock ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S:85

• 1 Thread 0x7ffff7fd8740 (LWP 1724) "helloworld" sem_wait ()
  at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85