使用 libcurl C/C++ 下载时冻结
我正在开发下载文件并通过 SDL 窗口显示传输速度的软件。 我的问题是，当我启动下载时，该窗口立即被 Windows 识别为崩溃的程序。下载完成后一切就OK了。 我的程序没有崩溃，我认为这是因为它在下载时无法响应。 有什么想法如何解决这个问题吗？
PS：执行时“崩溃”的代码示例：
curl_easy_setopt(curl, CURLOPT_URL, valeurs->URL);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, FALSE);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, downloadData);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
I'm working on software which downloads a file and shows transfer speed via an SDL window.
My problem is that when I launch a download, the window is immediately identified by windows as a crashed program. As soon as the download is completed, everything is okay.
My program didn't crash and I think that it's because it can't respond when it's downloading.
Any ideas how to solve that?
PS: example of code which 'crashes' when performed:
curl_easy_setopt(curl, CURLOPT_URL, valeurs->URL);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, FALSE);
curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, downloadData);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
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为了防止这些冻结，您需要在主线程中放置一个事件管理器（SDL_PoolEvent + SDL_Delay，以免过度使用 CPU）
To prevent those freeze, you need to put, in the main thread an event manager (SDL_PoolEvent + SDL_Delay to not overuse CPU)