{"id":57900,"date":"2024-10-10T22:05:16","date_gmt":"2024-10-10T14:05:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57900\/"},"modified":"2024-10-10T22:05:16","modified_gmt":"2024-10-10T14:05:16","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e6%96%87%e4%bb%b6%e9%8e%96%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57900\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00\u6587\u4ef6\u9396\u64cd\u4f5c"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e6%96%87%e4%bb%b6%e9%8e%96%e6%93%8d%e4%bd%9c-rBsiNDIBjr\">GO\u6559\u7a0b: Go \u8a9e\u8a00\u6587\u4ef6\u9396\u64cd\u4f5c<\/h1>\n<p>\u5728\u591a\u7dda\u7a0b\u6216\u591a\u5354\u7a0b\u7684\u61c9\u7528\u7a0b\u5f0f\u4e2d\uff0c\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u63a7\u5236\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u5be6\u73fe\u6587\u4ef6\u9396\u64cd\u4f5c\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u4e2d\u7684\u6587\u4ef6\u9396\u64cd\u4f5c\uff0c\u5305\u62ec\u5176\u57fa\u672c\u6982\u5ff5\u3001\u5be6\u73fe\u65b9\u6cd5\u53ca\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%96%87%e4%bb%b6%e9%8e%96%ef%bc%9f-rBsiNDIBjr\">\u4ec0\u9ebc\u662f\u6587\u4ef6\u9396\uff1f<\/h2>\n<p>\u6587\u4ef6\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u6587\u4ef6\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u7576\u4e00\u500b\u9032\u7a0b\u7372\u5f97\u6587\u4ef6\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u5c07\u7121\u6cd5\u5c0d\u8a72\u6587\u4ef6\u9032\u884c\u5beb\u5165\u6216\u8b80\u53d6\u64cd\u4f5c\uff0c\u76f4\u5230\u9396\u88ab\u91cb\u653e\u3002\u9019\u5728\u591a\u9032\u7a0b\u74b0\u5883\u4e2d\u7279\u5225\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u9632\u6b62\u6578\u64da\u640d\u58de\u6216\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h2 id=\"go-%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84%e6%96%87%e4%bb%b6%e9%8e%96-rBsiNDIBjr\">Go \u8a9e\u8a00\u4e2d\u7684\u6587\u4ef6\u9396<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u6587\u4ef6\u9396\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bc\u6a19\u6e96\u5eab\u4e2d\u7684 <code>os<\/code> \u548c <code>syscall<\/code> \u5305\u3002\u9019\u4e9b\u5305\u63d0\u4f9b\u4e86\u5c0d\u6587\u4ef6\u7684\u57fa\u672c\u64cd\u4f5c\u4ee5\u53ca\u7cfb\u7d71\u8abf\u7528\u7684\u63a5\u53e3\uff0c\u5f9e\u800c\u53ef\u4ee5\u5be6\u73fe\u6587\u4ef6\u9396\u7684\u529f\u80fd\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e6%93%8d%e4%bd%9c-rBsiNDIBjr\">\u57fa\u672c\u64cd\u4f5c<\/h3>\n<p>\u5728 Go \u4e2d\uff0c\u6587\u4ef6\u9396\u7684\u57fa\u672c\u64cd\u4f5c\u5305\u62ec\u7372\u53d6\u9396\u3001\u91cb\u653e\u9396\u4ee5\u53ca\u6aa2\u67e5\u9396\u7684\u72c0\u614b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li><strong>\u7372\u53d6\u9396\uff1a<\/strong> \u4f7f\u7528 <code>syscall.Flock<\/code> \u51fd\u6578\u4f86\u7372\u53d6\u6587\u4ef6\u9396\u3002<\/li>\n<li><strong>\u91cb\u653e\u9396\uff1a<\/strong> \u4f7f\u7528 <code>syscall.Flock<\/code> \u51fd\u6578\u4f86\u91cb\u653e\u6587\u4ef6\u9396\u3002<\/li>\n<li><strong>\u6aa2\u67e5\u9396\u7684\u72c0\u614b\uff1a<\/strong> \u901a\u904e\u6355\u7372\u932f\u8aa4\u4f86\u5224\u65b7\u9396\u662f\u5426\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u53d6\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-rBsiNDIBjr\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Go \u4e2d\u5be6\u73fe\u6587\u4ef6\u9396\uff1a<\/p>\n<pre><code>package main\n\nimport (\n    \"fmt\"\n    \"os\"\n    \"syscall\"\n)\n\nfunc main() {\n    \/\/ \u6253\u958b\u6587\u4ef6\n    file, err := os.OpenFile(\"example.txt\", os.O_RDWR|os.O_CREATE, 0666)\n    if err != nil {\n        fmt.Println(\"\u7121\u6cd5\u6253\u958b\u6587\u4ef6:\", err)\n        return\n    }\n    defer file.Close()\n\n    \/\/ \u7372\u53d6\u6587\u4ef6\u9396\n    err = syscall.Flock(int(file.Fd()), syscall.LOCK_EX)\n    if err != nil {\n        fmt.Println(\"\u7121\u6cd5\u7372\u53d6\u9396:\", err)\n        return\n    }\n    fmt.Println(\"\u9396\u5df2\u7372\u53d6\uff0c\u9032\u884c\u6587\u4ef6\u64cd\u4f5c...\")\n\n    \/\/ \u5728\u9019\u88e1\u9032\u884c\u6587\u4ef6\u64cd\u4f5c\n    \/\/ ...\n\n    \/\/ \u91cb\u653e\u6587\u4ef6\u9396\n    err = syscall.Flock(int(file.Fd()), syscall.LOCK_UN)\n    if err != nil {\n        fmt.Println(\"\u7121\u6cd5\u91cb\u653e\u9396:\", err)\n        return\n    }\n    fmt.Println(\"\u9396\u5df2\u91cb\u653e\")\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u6253\u958b\u4e00\u500b\u6587\u4ef6\uff0c\u7136\u5f8c\u4f7f\u7528 <code>syscall.Flock<\/code> \u7372\u53d6\u6392\u4ed6\u9396\u3002\u5b8c\u6210\u6587\u4ef6\u64cd\u4f5c\u5f8c\uff0c\u6211\u5011\u518d\u6b21\u8abf\u7528 <code>syscall.Flock<\/code> \u4f86\u91cb\u653e\u9396\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-rBsiNDIBjr\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u6587\u4ef6\u9396\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u5728\u7372\u53d6\u9396\u5f8c\uff0c\u7121\u8ad6\u64cd\u4f5c\u6210\u529f\u8207\u5426\uff0c\u90fd\u8981\u91cb\u653e\u9396\uff0c\u4ee5\u907f\u514d\u6b7b\u9396\u7684\u60c5\u6cc1\u3002<\/li>\n<li>\u6587\u4ef6\u9396\u662f\u9032\u7a0b\u9593\u7684\u9396\uff0c\u7121\u6cd5\u4fdd\u8b49\u5728\u540c\u4e00\u9032\u7a0b\u4e2d\u7684\u591a\u500b\u5354\u7a0b\u4e4b\u9593\u7684\u540c\u6b65\u3002<\/li>\n<li>\u5728\u67d0\u4e9b\u64cd\u4f5c\u7cfb\u7d71\u4e2d\uff0c\u6587\u4ef6\u9396\u7684\u884c\u70ba\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u6b64\u5728\u4e0d\u540c\u5e73\u53f0\u4e0a\u6e2c\u8a66\u662f\u5fc5\u8981\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rBsiNDIBjr\">\u7e3d\u7d50<\/h2>\n<p>Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u5be6\u73fe\u6587\u4ef6\u9396\u64cd\u4f5c\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u591a\u9032\u7a0b\u5354\u4f5c\u7684\u61c9\u7528\u7a0b\u5f0f\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528 <code>syscall.Flock<\/code> \u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u63a7\u5236\u5c0d\u6587\u4ef6\u7684\u8a2a\u554f\uff0c\u5f9e\u800c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u7ba1\u7406\u8cc7\u6e90\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Go \u8a9e\u8a00\u4e2d\u7684\u6587\u4ef6\u9396\u64cd\u4f5c\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u6587\u4ef6\u8a2a\u554f\u8207\u540c\u6b65\uff0c\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u8207\u6027\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57900","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=57900"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57900\/revisions"}],"predecessor-version":[{"id":57901,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57900\/revisions\/57901"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}