{"id":10360,"date":"2024-03-14T11:57:12","date_gmt":"2024-03-14T11:57:12","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-of-passing-parameters-in-pthread_create-in-linux\/"},"modified":"2025-08-03T22:33:36","modified_gmt":"2025-08-03T22:33:36","slug":"what-is-the-method-of-passing-parameters-in-pthread_create-in-linux","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-method-of-passing-parameters-in-pthread_create-in-linux\/","title":{"rendered":"Passing Parameters to pthread_create in Linux"},"content":{"rendered":"

When creating a thread in Linux with pthread_create, you can pass parameters to the thread by passing a void pointer parameter. The specific steps are as follows:<\/p>\n

    \n
  1. Define a structure that includes the parameters needed to be passed to the thread.<\/li>\n<\/ol>\n
    #include<\/span> <stdio.h><\/span><\/span>\r\n\r\ntypedef<\/span> struct<\/span> {<\/span>\r\n    int<\/span> a;\r\n    char<\/span> b;\r\n} ThreadArgs;\r\n<\/code><\/pre>\n
      \n
    1. Create a structure and initialize its parameters in the main thread, then pass the address of the structure as a parameter to the pthread_create function.<\/li>\n<\/ol>\n
      int<\/span> main<\/span>()<\/span> {\r\n    pthread_t<\/span> thread_id;\r\n    ThreadArgs args;\r\n\r\n    args.a = 10<\/span>;\r\n    args.b = 'A'<\/span>;\r\n\r\n    pthread_create(&thread_id, NULL<\/span>, myThreadFunction, &args);\r\n\r\n    \/\/ \u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f<\/span>\r\n    pthread_join(thread_id, NULL<\/span>);\r\n\r\n    return<\/span> 0<\/span>;\r\n}\r\n<\/code><\/pre>\n
        \n
      1. In the newly created thread function, cast the passed parameter to the type ThreadArgs and access its arguments.<\/li>\n<\/ol>\n
        void<\/span>* myThreadFunction<\/span>(void<\/span>* arg)<\/span> {\r\n    ThreadArgs *args = (ThreadArgs*)arg;\r\n\r\n    printf<\/span>(\"Parameter a: %d\\n\"<\/span>, args->a);\r\n    printf<\/span>(\"Parameter b: %c\\n\"<\/span>, args->b);\r\n\r\n    return<\/span> NULL<\/span>;\r\n}\r\n<\/code><\/pre>\n
        In this way, it is easy to pass parameters to a thread when creating it.<\/p>\n","protected":false},"excerpt":{"rendered":"
        When creating a thread in Linux with pthread_create, you can pass parameters to the thread by passing a void pointer parameter. The specific steps are as follows: Define a structure that includes the parameters needed to be passed to the thread. #include <stdio.h> typedef struct { int a; char b; } ThreadArgs; Create a structure […]<\/p>\n","protected":false},"author":9,"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":[381,12897,12884,12883,12900],"class_list":["post-10360","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-c-programming","tag-linux-threading","tag-posix-threads","tag-pthread_create","tag-thread-parameters"],"yoast_head":"\nPassing Parameters to pthread_create in Linux - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to pass parameters to threads in Linux using pthread_create with structs and void pointers. Step-by-step guide included.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-method-of-passing-parameters-in-pthread_create-in-linux\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Passing Parameters to pthread_create in Linux\" \/>\n<meta property=\"og:description\" content=\"Learn how to pass parameters to threads in Linux using pthread_create with structs and void pointers. 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