C++ (Cpp) ethr_rwmutex_rwlock示例

示例#1

文件： ethr_aux.c 项目： AlainODea/otp

int
ethr_install_exit_handler(void (*funcp)(void))
{
    ethr_xhndl_list *xhp;

#if ETHR_XCHK
    if (ethr_not_completely_inited__) {
	ETHR_ASSERT(0);
	return EACCES;
    }
#endif

    if (!funcp)
	return EINVAL;

    xhp = (ethr_xhndl_list *) ethr_mem__.std.alloc(sizeof(ethr_xhndl_list));
    if (!xhp)
	return ENOMEM;

    ethr_rwmutex_rwlock(&xhndl_rwmtx);

    xhp->funcp = funcp;
    xhp->next = xhndl_list;
    xhndl_list = xhp;

    ethr_rwmutex_rwunlock(&xhndl_rwmtx);

    return 0;
}

示例#2

文件： ethread_tests.c 项目： 0x00evil/otp

void *
rwmt_thread(void *unused)
{
    int data;

    print_line("Aux thread tries to read lock rwmutex");
    ethr_rwmutex_rlock(&rwmt_rwmutex);
    print_line("Aux thread read locked rwmutex");

    ASSERT(rwmt_data == 4711);

    print_line("Aux thread tries to read unlock rwmutex");
    ethr_rwmutex_runlock(&rwmt_rwmutex);
    print_line("Aux thread read unlocked rwmutex");

    print_line("Aux thread tries to write lock rwmutex");
    ethr_rwmutex_rwlock(&rwmt_rwmutex);
    print_line("Aux thread write locked rwmutex");

    data = ++rwmt_data;
    print_line("Aux thread wrote");

    print_line("Aux thread goes to sleep for 1 second");
    do_sleep(1);
    print_line("Aux thread woke up");

    ASSERT(rwmt_data == data);
    ++rwmt_data;

    print_line("Aux thread tries to write unlock rwmutex");
    ethr_rwmutex_rwunlock(&rwmt_rwmutex);
    print_line("Aux thread write unlocked rwmutex");

    return NULL;
}

示例#3

文件： erl_drv_thread.c 项目： Eric-Zhong/otp

void
erl_drv_rwlock_rwlock(ErlDrvRWLock *drwlck)
{
#ifdef USE_THREADS
    if (!drwlck)
	fatal_error(EINVAL, "erl_drv_rwlock_rwlock()");
    ethr_rwmutex_rwlock(&drwlck->rwmtx);
#endif
}

示例#4

文件： erl_drv_thread.c 项目： AugustoFernandes/otp

void
erl_drv_rwlock_rwlock(ErlDrvRWLock *drwlck)
{
#ifdef USE_THREADS
    int res = drwlck ? ethr_rwmutex_rwlock(&drwlck->rwmtx) : EINVAL;
    if (res != 0)
	fatal_error(res, "erl_drv_rwlock_rwlock()");
#endif
}

示例#5

文件： ethread_tests.c 项目： 0x00evil/otp

static void
rwmutex_test(void)
{
    int data;
    int res;
    ethr_tid tid;

    print_line("Trying to initialize rwmutex");
    res = ethr_rwmutex_init(&rwmt_rwmutex);
    ASSERT(res == 0);
    print_line("Initialized rwmutex");

    rwmt_data = 4711;

    print_line("Main thread tries to read lock rwmutex");
    ethr_rwmutex_rlock(&rwmt_rwmutex);
    print_line("Main thread read locked rwmutex");

    ASSERT(rwmt_data == 4711);

    print_line("Main thread about to create aux thread");
    res = ethr_thr_create(&tid, rwmt_thread, NULL, NULL);
    ASSERT(res == 0);
    print_line("Main thread created aux thread");

    print_line("Main thread goes to sleep for 1 second");
    do_sleep(1);
    print_line("Main thread woke up");

    ASSERT(rwmt_data == 4711);

    print_line("Main thread tries to read unlock rwmutex");
    ethr_rwmutex_runlock(&rwmt_rwmutex);
    print_line("Main thread read unlocked rwmutex");

    print_line("Main thread tries to write lock rwmutex");
    ethr_rwmutex_rwlock(&rwmt_rwmutex);
    print_line("Main thread write locked rwmutex");

    data = ++rwmt_data;

    print_line("Main thread goes to sleep for 1 second");
    do_sleep(1);
    print_line("Main thread woke up");

    ASSERT(rwmt_data == data);
    ++rwmt_data;

    print_line("Main thread tries to write unlock rwmutex");
    ethr_rwmutex_rwunlock(&rwmt_rwmutex);
    print_line("Main thread write unlocked rwmutex");

    res = ethr_thr_join(tid, NULL);
    ASSERT(res == 0);
    print_line("Main thread joined aux thread");

    res = ethr_rwmutex_destroy(&rwmt_rwmutex);
    ASSERT(res == 0);
    print_line("Main thread destroyed rwmutex");

}