Curl_easy_perform执行卡住
CURL_OK (0)意味着一切都是正常的,非0意味着发生了一个错误,错误定义在中。可以在 libcurl-erros 这里去查看。如果通过curl_easy_setopt设置了 CURLOPT_ERRORBUFFER … See more WebNov 2, 2024 · Additionally, I verified that the slow-ness was entirely in curl_easy_perform. futex(0x7efcb66439d0, FUTEX_WAIT, 3932, NULL) = 0 <5.390086> futex(0x7efcb76459d0, FUTEX_WAIT, 3930, NULL) = 0 <0.204908> Finally, after some looking around in source code, I found that the bug is somewhere in the DNS lookup. Replacing hostnames with …
Curl_easy_perform执行卡住
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Webcurl_easy_perform segmentation fault on Linux. 我正在使用使用curl来响应HTTP GET请求的C ++应用程序。. 它在Windows上运行良好,但在Linux (CentOS 7)上,使 … Weblibcurl使用时疑难问题: 在使用libcurl时, jwisp发现, curl_easy_perform是阻塞的方式进行下载的, curl_easy_perform执行后,程序会在这里阻塞等待下载结束(成功结束或者失败结束).此时若正常下载一段时间后,进行网络中断, curl_easy_perform并不会返回失败,而是阻塞整个程序卡在这里,此时即使网络连接重新恢复, curl ...
WebDescription. Invoke this function after curl_easy_init and all the curl_easy_setopt calls are made, and it performs the transfer as described in the options. It must be called with the same easy_handle as input as the curl_easy_init call returned. curl_easy_perform performs the entire request in a blocking manner and returns when done, or ... WebMay 20, 2015 · 由于公司项目,需要localhost的形式高并发的http访问本机服务,所以面临了两方面的问题: 1、http短连接会造成大量的time_wait,影响服务器的性能 2、libcurl easy同步接口不能满足高并发的要求 为了解决以上两个问题,本人通过http长连接池和libcurl multi相关接口解决了该问题,并取得一些效果,现在写出 ...
WebMay 13, 2016 · 1 Answer. The CURLOPT_PROGRESSFUNCTION expects that the callback function will return a value of 0, currently your function returns void. If you modify your progress_bar function to return int instead of void and add return 0; to the end of it that should resolve the issue. WebC++ (Cpp) curl_easy_perform - 30 examples found. These are the top rated real world C++ (Cpp) examples of curl_easy_perform extracted from open source projects. You can rate examples to help us improve the quality of examples. StringInfo rest_call_with_lock (char *method, char *url, char *params, StringInfo postData, int64 mutex, bool shared ...
Web在使用libcurl时, jwisp发现, curl_easy_perform是阻塞的方式进行下载的, curl_easy_perform执行后,程序会在这里阻塞等待下载结束(成功结束或者失败结束).此 …
WebJan 20, 2024 · 2024.01.20 22:16:40 字数 263 阅读 1,000. 网上已有一些技术文章,描述了curl_easy_perform卡住,需要设置超时标志。. 这种情况有些是网络断开的原因造成的 … signal fires dani shapiro summaryWebAug 17, 2024 · 复现:连接无线网络,然后执行 curl_easy_perform 下载,下载过程中,断开无线网络,curl_easy_perform 卡死,阻塞整个线程。. 原因:当断开无线网络时,使 … the problem of the grudge informerWebNov 7, 2024 · curl_easy_perform 以阻塞方式执行整个请求,并在完成后返回,或者如果失败则返回。. 有关非阻塞行为,请参阅 curl_multi_perform 。. 在使用相同的easy_handle … the problem of the environmentWebcurl_easy_perform() 开始执行下载操作, 若下载失败会返回错误码. 例如: CURLcode code = curl_easy_perform(handler) 4. curl_easy_getinfo() 得到各种下载信息, 包括下载文件名, … the problem of the media robert mcchesney pdfWebNov 21, 2024 · CURLcodecurl_easy_setopt (CURL *handle, CURLoption option, parameter); 说明:. 此函数用来告诉 libcurl 执行什么样的动作。. 该函数有 3 个参数 (该函数的可设置选项非常之多):. 第 1 个参数 handle 是由 curl_easy_init () 返回的句柄;第 2 个参数是可以设置的选项 (CURLoption);第 3 个 ... the problem of the green capsuleWebMar 24, 2024 · libcurl. 详参libcurl. 1 curl_easy_getinfo CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ... ); 使用此函数从curl会话请求内部信息。第三个参数必须是指向long的指针、指向char*的指针、指向struct curl_slist*的指针或指向double的指针(本文档将进一步介绍)。指向的数据将相应地填充,并且仅当函数返回CURLE_OK时才可以 ... the problem of the pictsWebJul 23, 2014 · You can do any amount of calls to curl_easy_perform(3) while using the same handle. If you intend to transfer more than one file, you are even encouraged to do so. libcurl will then attempt to re-use the same connection for the following transfers, thus making the operations faster, less CPU intense and using less network resources. ... the problem of the media robert mcchesney