Libcurl force download file

Using the created guard, we can now create a curl multi handle. Similar to the previous example, we create three curl easy handles for downloading three sample files:. Also, this call assigns the count of currently running curl easy handles to the second argument. If this value is equal to 0, it means all operations have finished. If the value is negative, libcurl has no timeout set and we should wait, say, milliseconds.

The maxfd parameter is set to the value of the maximum file descriptor. During execution of this loop, all curl easy handles will receive data and write it to a file. You can find the code for the whole loop here. Finally, after executing all requests, we need to remove curl easy handles from the multi handle:. Multiplexing allows for reusing a single connection to one server for processing multiple HTTP requests. This method can improve the performance of request-heavy applications by eliminating the need to close and reopen server connections.

We can reuse the asynchronous example and add this code between setting options for curl easy handles and add curl easy handles to the curl multi handle step 3 in the previous section :. Copy link. It is much better if you file one issue for each problem. Or how would you suggest it works? Whichever way we decide to go, we should make sure we document how it works. Does this mean this issue is solved for you? Sign up for free to subscribe to this conversation on GitHub.

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Now live: A fully responsive profile. Reducing the weight of our footer. Related 5. Hot Network Questions. Question feed. Connect and share knowledge within a single location that is structured and easy to search. I am new to the libcurl and found a way to download a single file from the ftp server. Now my requirement is to download all files in a directory and i guess it was not supported by libcurl.

Kindly suggest on libcurl how to download all files in directory or is there any other library similar to libcurl? You need the list of files on the FTP server. Which isn't straightforward as each FTP server might return a different format of file listing Anyway, the ftpgetresp. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.