XULRunner 下的 javascript 服务器失败

发布于 2024-07-22 07:23:11 字数 808 浏览 4 评论 0原文

我正在尝试调试名为 crowbar 的 DOM 抓取打包。不管怎样，当我跑步时我得到：

错误：[异常...“组件返回失败代码：0xc1f30001（NS_ERROR_NOT_INITIALIZED）[nsIServerSocket.asyncListen]”nsresult：“0xc1f30001（NS_ERROR_NOT_INITIALIZED）”位置：“JS框架:: chrome://crowbar/content/crowbar .js :: onLoad :: 第 375 行数据：否]
源文件：chrome://crowbar/content/crowbar.js
线路：375

基本上，asyncListen() 抛出NS_ERROR_NOT_INITIALIZED。这很奇怪，因为紧接在此之前的代码行是对 init() 的调用！我尝试

netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

在调用 asyncListen() 之前添加：但没有效果。这是安全问题吗？（顺便说一句，以防万一，这是在 Fedora 机器上，以 root 身份运行，禁用了 selinux）...我还尝试了一些不同的端口号...

原文

I'm trying to debug a DOM scraping packaged called crowbar. Anyhow, when I run I get:

Error: [Exception... "Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIServerSocket.asyncListen]" nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)" location: "JS frame :: chrome://crowbar/content/crowbar.js :: onLoad :: line 375" data: no]
Source File: chrome://crowbar/content/crowbar.js
Line: 375

Basically, asyncListen() is throwing NS_ERROR_NOT_INITIALIZED. This is weird because the line of code immediately before this is a call to init()! I've tried adding:

netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

just before the call to asyncListen() and it had no effect. Is this a security issue? (btw, in case it matters, this is on a Fedora box, running as root, with selinux disabled)... I've also tried a few different port numbers...

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清浅ˋ旧时光 2024-07-29 07:23:11

这是源代码： http://mxr .mozilla.org/mozilla-central/source/netwerk/base/src/nsServerSocket.cpp#369

你确定 init() 不会失败吗（这就是初始化 mFD ）？也许在你打电话之前有什么事情关闭？

我会构建一个调试 XULRunner 来构建调试版本和/或尝试获取日志记录应用程序的输出。不幸的是，我无法弄清楚该代码中的 LOG() 宏解析为什么，通常是 NSPR 日志记录，但您必须猜测模块名称才能启用此模块的日志记录。

Boris Zbarsky（mozilla 核心开发人员之一）说：

既然你正在调用 init()，我认为获得一个的唯一其他方法
asyncListen 中的 NS_ERROR_NOT_INITIALIZED 适用于您正在运行的线程
不再接受事件...
所以奇怪的事情正在发生。实际上是否涉及多个线程？

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泪是无色的血 2024-07-29 07:23:11

我也面临这个问题。我从 CrowBar 派生了我的代码，并通过 Win 7 上的 xulrunner 1.9.1 运行它。

当我与网络断开连接时，我遇到了问题。如果我在网络上，它就可以工作。我确实有多个线程 [多个 xul 元素]。但我相信我正在主线程上运行它（虽然我不确定如何找到当前线程），所以线程不监听不应该是问题。

我还注意到，在 nsSocketTransportService2.cpp 中，线程变为空，所以鲍里斯也许是对的。

NS_IMETHODIMP
nsSocketTransportService::Dispatch (nsIRunnable *event, PRUint32 flags) 
{

    LOG(("STS dispatch [%p]\n", event));
    nsCOMPtr<nsIThread> thread = GetThreadSafely();
    NS_ENSURE_TRUE(thread, NS_ERROR_NOT_INITIALIZED);
    nsresult rv = thread->Dispatch(event, flags);
    if (rv == NS_ERROR_UNEXPECTED) {
        // Thread is no longer accepting events. We must have just shut it
        // down on the main thread. Pretend we never saw it.
        rv = NS_ERROR_NOT_INITIALIZED;
    }
    return rv;
}

希望这有助于确定问题。

谢谢
哈温德

I am too facing this problem. I have derived my code from CrowBar and running it through xulrunner 1.9.1 on Win 7.

I get the problem when I am diconnected from the net. If I am on a network it works. I do have multiple threads [multiple xul elements ]. But I belive I am running it on main thread (I am not sure how I can find current thread though), so thread not listening should not be the issue.

Also I have noted that in nsSocketTransportService2.cpp thread becomes null, so Boris maybe right.

NS_IMETHODIMP
nsSocketTransportService::Dispatch (nsIRunnable *event, PRUint32 flags) 
{

    LOG(("STS dispatch [%p]\n", event));
    nsCOMPtr<nsIThread> thread = GetThreadSafely();
    NS_ENSURE_TRUE(thread, NS_ERROR_NOT_INITIALIZED);
    nsresult rv = thread->Dispatch(event, flags);
    if (rv == NS_ERROR_UNEXPECTED) {
        // Thread is no longer accepting events. We must have just shut it
        // down on the main thread. Pretend we never saw it.
        rv = NS_ERROR_NOT_INITIALIZED;
    }
    return rv;
}

Hope this helps pin down the problem.

thanks
harvinder

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