{"id":13528,"date":"2024-03-15T07:19:31","date_gmt":"2024-03-15T07:19:31","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-resolve-a-timeout-issue-with-the-linux-poll-function-call\/"},"modified":"2025-08-05T19:44:04","modified_gmt":"2025-08-05T19:44:04","slug":"how-to-resolve-a-timeout-issue-with-the-linux-poll-function-call","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-resolve-a-timeout-issue-with-the-linux-poll-function-call\/","title":{"rendered":"Fix Linux poll() Timeout Issues"},"content":{"rendered":"

In Linux, you can use the poll() function to detect events on multiple file descriptors. If the poll() function call times out, there are a few ways to resolve it:<\/p>\n

    \n
  1. To increase the timeout period, you can adjust the values of the tv_sec and tv_nsec fields in the struct timespec structure. For example, setting tv_sec to 5 indicates a timeout period of 5 seconds.<\/li>\n
  2. Reduce the timeout period: If the poll() function times out, it may be beneficial to decrease the timeout period in order to improve response time.<\/li>\n
  3. Check the file descriptor: before calling the poll() function, you can first check if the file descriptor is already ready, if it is ready, there is no need to call poll(), you can immediately handle the event.<\/li>\n
  4. Set the file descriptor to non-blocking mode to prevent the poll() function from blocking and immediately return even when no events occur.<\/li>\n
  5. Other I\/O multiplexing functions can be used, such as select() and epoll(), in addition to poll(). The appropriate function can be selected based on specific requirements to handle timeout issues.<\/li>\n<\/ol>\n

    The above are some common solutions, the specific choice depends on your code logic and requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"

    In Linux, you can use the poll() function to detect events on multiple file descriptors. If the poll() function call times out, there are a few ways to resolve it: To increase the timeout period, you can adjust the values of the tv_sec and tv_nsec fields in the struct timespec structure. For example, setting tv_sec […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[18041,297,18040,15104,9773],"class_list":["post-13528","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-file-descriptors","tag-linux","tag-poll-function","tag-system-programming","tag-timeout"],"yoast_head":"\nFix Linux poll() Timeout Issues - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Resolve Linux poll() timeout problems by adjusting timeout values. 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