{"id":51649,"date":"2024-12-03T11:44:48","date_gmt":"2024-12-03T03:44:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51649\/"},"modified":"2024-12-03T11:44:48","modified_gmt":"2024-12-03T03:44:48","slug":"linux%e4%b8%ad%e7%9a%84%e8%bf%9b%e7%a8%8b%e4%b8%ba%e4%bd%95%e4%bc%9a%e8%bf%9b%e5%85%a5%e7%9d%a1%e7%9c%a0%e7%8a%b6%e6%80%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51649\/","title":{"rendered":"Linux\u4e2d\u7684\u8fdb\u7a0b\u4e3a\u4f55\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Linux\u4e2d\u7684\u8fdb\u7a0b\u4e3a\u4f55\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001\uff1f<\/h1>\n

\u5728 Linux \u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u8868\u793a\u8fdb\u7a0b\u6682\u65f6\u6302\u8d77\uff0c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u624d\u80fd\u88ab\u5524\u9192\u3002\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u5e38\u89c1\u539f\u56e0\u5305\u62ec\u7b49\u5f85 I\/O \u5b8c\u6210\uff08\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u6216\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\uff09\u3001\u7b49\u5f85\u4fe1\u53f7\u5230\u6765\uff08\u4f8b\u5982\u63a5\u6536\u7279\u5b9a\u4fe1\u53f7\uff09\u4ee5\u53ca\u7b49\u5f85\u9501\u6216\u8d44\u6e90\uff08\u4f8b\u5982\u83b7\u53d6\u5171\u4eab\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\uff09\u3002\u7406\u89e3\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u539f\u56e0\u548c\u60c5\u51b5\u5bf9\u4e8e\u7cfb\u7edf\u7f16\u7a0b\u548c\u8c03\u8bd5\u81f3\u5173\u91cd\u8981\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u7f16\u5199\u9ad8\u6548\u4e14\u53ef\u9760\u7684\u7a0b\u5e8f\u3002<\/p>\n

\u4e3a\u4ec0\u4e48Linux\u4e2d\u7684\u8fdb\u7a0b\u4f1a\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff1f<\/p>\n

\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u8fd9\u662f\u7531\u4e8e\u591a\u79cd\u4e0d\u540c\u7684\u539f\u56e0\u548c\u6761\u4ef6\u9020\u6210\u7684\u3002\u8fdb\u7a0b\u5904\u4e8e\u4f11\u7720\u72b6\u6001\u65f6\uff0c\u8868\u793a\u8be5\u8fdb\u7a0b\u6682\u65f6\u88ab\u6302\u8d77\uff0c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u76f4\u5230\u6ee1\u8db3\u67d0\u79cd\u6761\u4ef6\u540e\u624d\u80fd\u88ab\u5524\u9192\u7ee7\u7eed\u6267\u884c\u3002\u63a5\u4e0b\u6765\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5728Linux\u4e2d\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u51e0\u79cd\u5e38\u89c1\u60c5\u51b5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u52a0\u4ee5\u8bf4\u660e\u3002<\/p>\n

    \n
  1. \n

    \u7b49\u5f85I\/O\u5b8c\u6210\uff1a<\/strong>
    \u5f53\u8fdb\u7a0b\u53d1\u8d77\u4e00\u4e2aI\/O\u64cd\u4f5c\uff08\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u3001\u7f51\u7edc\u901a\u4fe1\u7b49\uff09\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u7f6e\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u76f4\u5230I\/O\u64cd\u4f5c\u5b8c\u6210\u624d\u80fd\u7ee7\u7eed\u6267\u884c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u8fdb\u7a0b\u7b49\u5f85\u8bfb\u53d6\u6587\u4ef6\u5b8c\u6210\u7684\u60c5\u51b5\uff1a<\/p>\n

    #include <stdio.h>\n\nint main() {\n    FILE *file = fopen(\"example.txt\", \"rb\");\n    if (file == NULL) {\n        perror(\"Error opening file\");\n        return 1;\n    }\n\n    char buffer[256];\n    fread(buffer, sizeof(char), 256, file); \/\/ \u8bfb\u53d6\u6587\u4ef6\u6570\u636e\uff0c\u963b\u585e\u8fdb\u7a0b\u76f4\u5230\u5b8c\u6210\n    fclose(file);\n\n    printf(\"File contents: %s\n\", buffer);\n\n    return 0;\n}<\/pre>\n<\/li>\n
  2. \n
    \u7b49\u5f85\u4fe1\u53f7\uff1a<\/strong>
    \u8fdb\u7a0b\u53ef\u80fd\u4f1a\u8c03\u7528sigwait()<\/code>\u6216sigwaitinfo()<\/code>\u7b49\u51fd\u6570\u7b49\u5f85\u4fe1\u53f7\u7684\u5230\u6765\uff0c\u6b64\u65f6\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u76f4\u5230\u7279\u5b9a\u4fe1\u53f7\u5230\u6765\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u8fdb\u7a0b\u7b49\u5f85\u63a5\u6536\u4fe1\u53f7\u7684\u60c5\u51b5\uff1a<\/p>\n
    #include <stdio.h>\n#include <signal.h>\n#include <unistd.h>\n\nvoid signal_handler(int signum) {\n    printf(\"Signal received: %d\n\", signum);\n}\n\nint main() {\n    struct sigaction sa;\n    sa.sa_handler = signal_handler;\n    sigaction(SIGINT, &sa, NULL); \/\/ \u6355\u83b7SIGINT\u4fe1\u53f7\n\n    printf(\"Waiting for signal...\n\");\n    sigset_t set;\n    sigemptyset(&set);\n    sigaddset(&set, SIGINT);\n    int sig;\n    sigwait(&set, &sig); \/\/ \u7b49\u5f85SIGINT\u4fe1\u53f7\n\n    printf(\"Signal received, exiting...\n\");\n    return 0;\n}<\/pre>\n<\/li>\n
  3. \n
    \u7b49\u5f85\u9501\u6216\u8d44\u6e90\uff1a<\/strong>
    \u8fdb\u7a0b\u5728\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6\uff0c\u53ef\u80fd\u4f1a\u9700\u8981\u7b49\u5f85\u83b7\u53d6\u9501\u6216\u8bbf\u95ee\u8d44\u6e90\u7684\u8bb8\u53ef\uff0c\u6b64\u65f6\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u591a\u7ebf\u7a0b\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u8fdb\u7a0b\u7b49\u5f85\u83b7\u53d6\u9501\u7684\u60c5\u51b5\uff1a<\/p>\n
    #include <stdio.h>\n#include <pthread.h>\n\npthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;\nint shared_data = 0;\n\nvoid *thread_function(void *arg) {\n    pthread_mutex_lock(&mutex); \/\/ \u7b49\u5f85\u83b7\u5f97\u9501\n    shared_data++;\n    printf(\"Thread: shared_data = %d\n\", shared_data);\n    pthread_mutex_unlock(&mutex);\n    return NULL;\n}\n\nint main() {\n    pthread_t thread;\n    pthread_create(&thread, NULL, thread_function, NULL);\n\n    pthread_mutex_lock(&mutex); \/\/ \u7b49\u5f85\u83b7\u5f97\u9501\n    shared_data++;\n    printf(\"Main: shared_data = %d\n\", shared_data);\n    pthread_mutex_unlock(&mutex);\n\n    pthread_join(thread, NULL);\n\n    return 0;\n}<\/pre>\n<\/li>\n<\/ol>\n
    \u7efc\u4e0a\u6240\u8ff0\uff0cLinux\u4e2d\u7684\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u7531\u4e8e\u7b49\u5f85I\/O\u5b8c\u6210\u3001\u7b49\u5f85\u4fe1\u53f7\u5230\u6765\u6216\u7b49\u5f85\u9501\u6216\u8d44\u6e90\u800c\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002\u7406\u89e3\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u539f\u56e0\u548c\u60c5\u51b5\u5bf9\u4e8e\u8fdb\u884c\u7cfb\u7edf\u7f16\u7a0b\u548c\u8c03\u8bd5\u81f3\u5173\u91cd\u8981\uff0c\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u53ef\u4ee5\u66f4\u76f4\u89c2\u5730\u7406\u89e3\u8fdb\u7a0b\u7684\u4f11\u7720\u72b6\u6001\u53ca\u5176\u5f71\u54cd\u3002<\/p>\n
    \u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n
    \n
    <\/dt>\n
    \n   \u5b9e\u73b0\u5206\u5e03\u5f0f\u8ddf\u8e2a\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 golang \u7684 http.PostForm\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    Linux\u4e2d\u7684\u8fdb\u7a0b\u4e3a\u4f55\u4f1a\u8fdb\u5165\u7761\u7720\u72b6\u6001\uff1f \u5728 Linux \u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u8868\u793a\u8fdb\u7a0b\u6682\u65f6\u6302\u8d77\uff0c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u624d\u80fd\u88ab\u5524\u9192\u3002\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u5e38\u89c1\u539f\u56e0\u5305\u62ec\u7b49\u5f85 I\/O \u5b8c\u6210\uff08\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u6216\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\uff09\u3001\u7b49\u5f85\u4fe1\u53f7\u5230\u6765\uff08\u4f8b\u5982\u63a5\u6536\u7279\u5b9a\u4fe1\u53f7\uff09\u4ee5\u53ca\u7b49\u5f85\u9501\u6216\u8d44\u6e90\uff08\u4f8b\u5982\u83b7\u53d6\u5171\u4eab\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\uff09\u3002\u7406\u89e3\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u539f\u56e0\u548c\u60c5\u51b5\u5bf9\u4e8e\u7cfb\u7edf\u7f16\u7a0b\u548c\u8c03\u8bd5\u81f3\u5173\u91cd\u8981\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u7f16\u5199\u9ad8\u6548\u4e14\u53ef\u9760\u7684\u7a0b\u5e8f\u3002 \u4e3a\u4ec0\u4e48Linux\u4e2d\u7684\u8fdb\u7a0b\u4f1a\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff1f \u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u5904\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u8fd9\u662f\u7531\u4e8e\u591a\u79cd\u4e0d\u540c\u7684\u539f\u56e0\u548c\u6761\u4ef6\u9020\u6210\u7684\u3002\u8fdb\u7a0b\u5904\u4e8e\u4f11\u7720\u72b6\u6001\u65f6\uff0c\u8868\u793a\u8be5\u8fdb\u7a0b\u6682\u65f6\u88ab\u6302\u8d77\uff0c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u76f4\u5230\u6ee1\u8db3\u67d0\u79cd\u6761\u4ef6\u540e\u624d\u80fd\u88ab\u5524\u9192\u7ee7\u7eed\u6267\u884c\u3002\u63a5\u4e0b\u6765\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5728Linux\u4e2d\u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u7684\u51e0\u79cd\u5e38\u89c1\u60c5\u51b5\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u52a0\u4ee5\u8bf4\u660e\u3002 \u7b49\u5f85I\/O\u5b8c\u6210\uff1a\u5f53\u8fdb\u7a0b\u53d1\u8d77\u4e00\u4e2aI\/O\u64cd\u4f5c\uff08\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u3001\u7f51\u7edc\u901a\u4fe1\u7b49\uff09\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u7f6e\u4e8e\u4f11\u7720\u72b6\u6001\uff0c\u76f4\u5230I\/O\u64cd\u4f5c\u5b8c\u6210\u624d\u80fd\u7ee7\u7eed\u6267\u884c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6f14\u793a\u8fdb\u7a0b\u7b49\u5f85\u8bfb\u53d6\u6587\u4ef6\u5b8c\u6210\u7684\u60c5\u51b5\uff1a #include <stdio.h> int main() { FILE *file = fopen(“example.txt”, “rb”); if (file == NULL) { perror(“Error opening file”); return 1; } char buffer[256]; fread(buffer, sizeof(char), 256, file); \/\/ \u8bfb\u53d6\u6587\u4ef6\u6570\u636e\uff0c\u963b\u585e\u8fdb\u7a0b\u76f4\u5230\u5b8c\u6210 fclose(file); printf(“File contents: %s “, buffer); return 0; } \u7b49\u5f85\u4fe1\u53f7\uff1a\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u8c03\u7528sigwait()\u6216sigwaitinfo()\u7b49\u51fd\u6570\u7b49\u5f85\u4fe1\u53f7\u7684\u5230\u6765\uff0c\u6b64\u65f6\u8fdb\u7a0b\u4f1a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u76f4\u5230\u7279\u5b9a\u4fe1\u53f7\u5230\u6765\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u8fdb\u7a0b\u7b49\u5f85\u63a5\u6536\u4fe1\u53f7\u7684\u60c5\u51b5\uff1a #include <stdio.h> #include <signal.h> #include <unistd.h> void […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-51649","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=51649"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51649\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}