{"id":63313,"date":"2025-04-29T16:22:33","date_gmt":"2025-04-29T08:22:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/63313\/"},"modified":"2025-04-29T16:22:33","modified_gmt":"2025-04-29T08:22:33","slug":"%e5%88%86%e6%9e%90linux%e8%bf%9b%e7%a8%8b%e4%b8%ba%e4%bb%80%e4%b9%88%e9%9c%80%e8%a6%81%e4%bc%91%e7%9c%a0%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/63313\/","title":{"rendered":"\u5206\u6790Linux\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u9700\u8981\u4f11\u7720\uff1f"},"content":{"rendered":"

\"\u5206\u6790Linux\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u9700\u8981\u4f11\u7720\uff1f\u63d2\u56fe\"<\/p>\n

Linux\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u9700\u8981\u4f11\u7720\uff1f<\/p>\n

Linux\u662f\u4e00\u79cd\u591a\u4efb\u52a1\u64cd\u4f5c\u7cfb\u7edf\uff0c\u652f\u6301\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8fd0\u884c\u3002\u5728Linux\u4e2d\uff0c\u8fdb\u7a0b\u6709\u4e09\u79cd\u72b6\u6001\uff1a\u8fd0\u884c\u6001\u3001\u5c31\u7eea\u6001\u548c\u963b\u585e\u6001\u3002\u5176\u4e2d\uff0c\u963b\u585e\u6001\u4e5f\u79f0\u4e3a\u4f11\u7720\u6001\uff0c\u5b83\u662f\u6307\u8fdb\u7a0b\u7531\u4e8e\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u53d1\u751f\u800c\u6682\u65f6\u505c\u6b62\u8fd0\u884c\u7684\u72b6\u6001\u3002\u4e3a\u4e86\u6709\u6548\u5229\u7528\u8ba1\u7b97\u8d44\u6e90\uff0cLinux\u8fdb\u7a0b\u9700\u8981\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002<\/p>\n

    \n
  1. \u7b49\u5f85I\/O\u64cd\u4f5c\u5b8c\u6210<\/strong>\uff1a\u5f53\u8fdb\u7a0b\u9700\u8981\u8fdb\u884cI\/O\u64cd\u4f5c\u65f6\uff0c\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u3001\u7f51\u7edc\u901a\u4fe1\u7b49\uff0c\u7531\u4e8e\u8fd9\u4e9b\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u8f83\u957f\u65f6\u95f4\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u8bbe\u7f6e\u4e3a\u4f11\u7720\u72b6\u6001\uff0c\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u3002\u4e00\u65e6I\/O\u64cd\u4f5c\u5b8c\u6210\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u5524\u9192\u5e76\u7ee7\u7eed\u6267\u884c\u3002<\/li>\n<\/ol>\n
    #include <stdio.h>\n#include <unistd.h>\n#include <fcntl.h>\n\nint main() {\n    int fd = open(\"file.txt\", O_RDONLY);\n    if (fd == -1) {\n        perror(\"Error opening file\");\n        return 1;\n    }\n    \n    char buffer[100];\n    ssize_t bytes_read = read(fd, buffer, sizeof(buffer));\n    if (bytes_read == -1) {\n        perror(\"Error reading file\");\n        return 1;\n    }\n    \n    \/\/ \u8fdb\u884c\u4e00\u4e9b\u5176\u4ed6\u64cd\u4f5c\n    \n    close(fd);\n    return 0;\n}<\/fcntl.h><\/unistd.h><\/stdio.h><\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5728\u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u8fdb\u7a0b\u901a\u8fc7read\u51fd\u6570\u8fdb\u884c\u6587\u4ef6\u8bfb\u53d6\u64cd\u4f5c\uff0c\u5f53\u8c03\u7528read\u540e\u8fdb\u7a0b\u4f1a\u4f11\u7720\uff0c\u76f4\u5230\u6587\u4ef6\u64cd\u4f5c\u5b8c\u6210\u3002<\/p>\n
      \n
    1.  \u7b49\u5f85\u4fe1\u53f7\u89e6\u53d1<\/strong>\uff1a\u8fdb\u7a0b\u53ef\u80fd\u9700\u8981\u7b49\u5f85\u67d0\u4e2a\u4fe1\u53f7\u7684\u89e6\u53d1\u624d\u80fd\u7ee7\u7eed\u6267\u884c\uff0c\u4f8b\u5982\u7b49\u5f85\u5b9a\u65f6\u5668\u4fe1\u53f7\u3001\u952e\u76d8\u8f93\u5165\u7b49\u3002\u5728\u4fe1\u53f7\u89e6\u53d1\u4e4b\u524d\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u8bbe\u7f6e\u4e3a\u4f11\u7720\u72b6\u6001\u3002<\/li>\n<\/ol>\n
      #include <stdio.h>\n#include <signal.h>\n\nvoid handler(int sig) {\n    printf(\"Received signal %d\n\", sig);\n}\n\nint main() {\n    signal(SIGUSR1, handler);\n    \n    printf(\"Waiting for signal...\n\");\n    pause(); \/\/ \u8fdb\u7a0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u7b49\u5f85\u4fe1\u53f7\u89e6\u53d1\n    \n    printf(\"Signal received. Continuing...\n\");\n    return 0;\n}<\/signal.h><\/stdio.h><\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u5728\u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u8fdb\u7a0b\u901a\u8fc7pause\u51fd\u6570\u8fdb\u5165\u4f11\u7720\u72b6\u6001\uff0c\u7b49\u5f85\u63a5\u6536\u7528\u6237\u5b9a\u4e49\u7684\u4fe1\u53f7SIGUSR1\u3002<\/p>\n
        \n
      1.  \u8d44\u6e90\u4e0d\u8db3<\/strong>\uff1a\u5728\u8fdb\u7a0b\u9700\u8981\u7684\u8d44\u6e90\u4e0d\u8db3\u65f6\uff0c\u5982\u5185\u5b58\u3001CPU\u65f6\u95f4\u7247\u7b49\uff0c\u8fdb\u7a0b\u4e5f\u4f1a\u88ab\u8bbe\u7f6e\u4e3a\u4f11\u7720\u72b6\u6001\uff0c\u7b49\u5f85\u8d44\u6e90\u53ef\u7528\u540e\u518d\u7ee7\u7eed\u6267\u884c\u3002<\/li>\n<\/ol>\n
        \u7efc\u4e0a\u6240\u8ff0\uff0cLinux\u8fdb\u7a0b\u9700\u8981\u4f11\u7720\u662f\u4e3a\u4e86\u66f4\u597d\u5730\u7ba1\u7406\u7cfb\u7edf\u8d44\u6e90\uff0c\u907f\u514d\u8d44\u6e90\u6d6a\u8d39\u548c\u63d0\u9ad8\u7cfb\u7edf\u6548\u7387\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u4f11\u7720\u673a\u5236\uff0cLinux\u7cfb\u7edf\u80fd\u591f\u5145\u5206\u5229\u7528\u8ba1\u7b97\u8d44\u6e90\uff0c\u63d0\u9ad8\u7cfb\u7edf\u6574\u4f53\u6027\u80fd\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662f\u5206\u6790Linux\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u9700\u8981\u4f11\u7720\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        Linux\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u9700\u8981\u4f11\u7720\uff1f Linux\u662f\u4e00\u79cd\u591a\u4efb\u52a1\u64cd\u4f5c\u7cfb\u7edf\uff0c\u652f\u6301\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u8fd0\u884c\u3002\u5728Linux\u4e2d\uff0c\u8fdb\u7a0b\u6709\u4e09\u79cd\u72b6\u6001\uff1a\u8fd0\u884c\u6001\u3001\u5c31\u7eea\u6001\u548c\u963b\u585e\u6001\u3002\u5176\u4e2d\uff0c\u963b\u585e\u6001\u4e5f\u79f0\u4e3a\u4f11\u7720\u6001\uff0c\u5b83\u662f\u6307\u8fdb\u7a0b\u7531\u4e8e\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u53d1\u751f\u800c\u6682\u65f6\u505c\u6b62\u8fd0\u884c\u7684\u72b6\u6001\u3002\u4e3a\u4e86\u6709\u6548\u5229\u7528\u8ba1\u7b97\u8d44\u6e90\uff0cLinux\u8fdb\u7a0b\u9700\u8981\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002 \u7b49\u5f85I\/O\u64cd\u4f5c\u5b8c\u6210\uff1a\u5f53\u8fdb\u7a0b\u9700\u8981\u8fdb\u884cI\/O\u64cd\u4f5c\u65f6\uff0c\u4f8b\u5982\u8bfb\u53d6\u6587\u4ef6\u3001\u7f51\u7edc\u901a\u4fe1\u7b49\uff0c\u7531\u4e8e\u8fd9\u4e9b\u64cd\u4f5c\u53ef\u80fd\u9700\u8981\u8f83\u957f\u65f6\u95f4\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u8bbe\u7f6e\u4e3a\u4f11\u7720\u72b6\u6001\uff0c\u7b49\u5f85\u64cd\u4f5c\u5b8c\u6210\u3002\u4e00\u65e6I\/O\u64cd\u4f5c\u5b8c\u6210\uff0c\u8fdb\u7a0b\u4f1a\u88ab\u5524\u9192\u5e76\u7ee7\u7eed\u6267\u884c\u3002 #include <stdio.h> #include <unistd.h> #include <fcntl.h> int main() { int fd = open(“file.txt”, O_RDONLY); if (fd == -1) { perror(“Error opening file”); return 1; } char buffer[100]; ssize_t bytes_read = read(fd, buffer, sizeof(buffer)); if (bytes_read == -1) { perror(“Error reading file”); return 1; } \/\/ \u8fdb\u884c\u4e00\u4e9b\u5176\u4ed6\u64cd\u4f5c close(fd); return 0; }<\/fcntl.h><\/unistd.h><\/stdio.h> \u767b\u5f55\u540e\u590d\u5236 \u5728\u4ee5\u4e0a\u793a\u4f8b\u4e2d\uff0c\u8fdb\u7a0b\u901a\u8fc7read\u51fd\u6570\u8fdb\u884c\u6587\u4ef6\u8bfb\u53d6\u64cd\u4f5c\uff0c\u5f53\u8c03\u7528read\u540e\u8fdb\u7a0b\u4f1a\u4f11\u7720\uff0c\u76f4\u5230\u6587\u4ef6\u64cd\u4f5c\u5b8c\u6210\u3002 […]<\/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-63313","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63313","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=63313"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/63313\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=63313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=63313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=63313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}