ACE_Singleton用法

#include <stdio.h>

#include <ace/Singleton.h>

#include <ace/Memory_Pool.h>

#include <ace/Log_Msg.h>

#include <ace/Mutex.h>

#include <ace/Null_Mutex.h>

#include <ace/Thread_Manager.h>

class MyClass

{

public:

    void foo()

    {

        ACE_DEBUG((LM_DEBUG,"foo called\n"));

    }

};

typedef ACE_Singleton<MyClass,ACE_Null_Mutex> FOO;

void * Thread ( void *arg )

{

    FOO::instance ()->foo ();

    fprintf(stderr,"FOO address is %p\n",FOO::instance ());

}

int main(int argc, char *argv[])

{

    FOO::instance ()->foo ();

    fprintf(stderr,"FOO address is %p\n",FOO::instance ());

    ACE_Thread_Manager::instance ()->spawn (Thread,0);

    ACE_Thread_Manager::instance ()->wait ();

    return 0;

}