{"id":198696,"date":"2024-11-14T22:13:21","date_gmt":"2024-11-14T14:13:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/198696\/"},"modified":"2024-11-14T22:13:21","modified_gmt":"2024-11-14T14:13:21","slug":"c%e8%aa%9e%e8%a8%80%e5%9c%a8linux%e4%b8%8b%e7%9a%84%e4%bf%a1%e8%99%9f%e8%99%95%e7%90%86%e6%96%b9%e5%bc%8f%e7%b0%a1%e4%bb%8b-clinux%e4%bf%a1%e8%99%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/198696\/","title":{"rendered":"C\u8a9e\u8a00\u5728Linux\u4e0b\u7684\u4fe1\u865f\u8655\u7406\u65b9\u5f0f\u7c21\u4ecb (clinux\u4fe1\u865f)"},"content":{"rendered":"<h1 id=\"c%e8%aa%9e%e8%a8%80%e5%9c%a8linux%e4%b8%8b%e7%9a%84%e4%bf%a1%e8%99%9f%e8%99%95%e7%90%86%e6%96%b9%e5%bc%8f%e7%b0%a1%e4%bb%8b-zYArFWWVDS\">C\u8a9e\u8a00\u5728Linux\u4e0b\u7684\u4fe1\u865f\u8655\u7406\u65b9\u5f0f\u7c21\u4ecb<\/h1>\n<p>\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u4fe1\u865f\u662f\u4e00\u7a2e\u7528\u65bc\u9032\u7a0b\u9593\u901a\u4fe1\u7684\u6a5f\u5236\u3002\u4fe1\u865f\u53ef\u4ee5\u7528\u4f86\u901a\u77e5\u9032\u7a0b\u67d0\u4e9b\u4e8b\u4ef6\u7684\u767c\u751f\uff0c\u4f8b\u5982\u7528\u6236\u4e2d\u65b7\u3001\u8a08\u6642\u5668\u5230\u671f\u6216\u5176\u4ed6\u9032\u7a0b\u7684\u8acb\u6c42\u3002C\u8a9e\u8a00\u4f5c\u70baLinux\u4e0b\u6700\u5e38\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\u4e4b\u4e00\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u4fe1\u865f\u8655\u7406\u529f\u80fd\u3002\u672c\u6587\u5c07\u4ecb\u7d39C\u8a9e\u8a00\u5728Linux\u4e0b\u7684\u4fe1\u865f\u8655\u7406\u65b9\u5f0f\uff0c\u5305\u62ec\u4fe1\u865f\u7684\u57fa\u672c\u6982\u5ff5\u3001\u4fe1\u865f\u7684\u985e\u578b\u3001\u4fe1\u865f\u8655\u7406\u51fd\u6578\u7684\u8a2d\u7f6e\u4ee5\u53ca\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bf%a1%e8%99%9f%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-zYArFWWVDS\">\u4fe1\u865f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u4fe1\u865f\u662f\u4e00\u7a2e\u7570\u6b65\u4e8b\u4ef6\uff0c\u7576\u67d0\u500b\u4e8b\u4ef6\u767c\u751f\u6642\uff0c\u64cd\u4f5c\u7cfb\u7d71\u6703\u5411\u9032\u7a0b\u767c\u9001\u4e00\u500b\u4fe1\u865f\u3002\u9032\u7a0b\u53ef\u4ee5\u9078\u64c7\u5982\u4f55\u97ff\u61c9\u9019\u4e9b\u4fe1\u865f\uff0c\u901a\u5e38\u6709\u4e09\u7a2e\u65b9\u5f0f\uff1a\u9ed8\u8a8d\u8655\u7406\u3001\u5ffd\u7565\u4fe1\u865f\u6216\u81ea\u5b9a\u7fa9\u4fe1\u865f\u8655\u7406\u51fd\u6578\u3002\u4fe1\u865f\u7684\u767c\u9001\u53ef\u4ee5\u7531\u5167\u6838\u3001\u7528\u6236\u9032\u7a0b\u6216\u786c\u4ef6\u4e2d\u65b7\u89f8\u767c\u3002<\/p>\n<h2 id=\"%e4%bf%a1%e8%99%9f%e7%9a%84%e9%a1%9e%e5%9e%8b-zYArFWWVDS\">\u4fe1\u865f\u7684\u985e\u578b<\/h2>\n<p>\u5728Linux\u4e2d\uff0c\u6709\u591a\u7a2e\u4fe1\u865f\u53ef\u4f9b\u4f7f\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u4fe1\u865f\u985e\u578b\uff1a<\/p>\n<ul>\n<li><code>SIGINT<\/code>\uff1a\u7528\u6236\u4e2d\u65b7\u4fe1\u865f\uff0c\u901a\u5e38\u7531Ctrl+C\u89f8\u767c\u3002<\/li>\n<li><code>SIGTERM<\/code>\uff1a\u7d42\u6b62\u4fe1\u865f\uff0c\u8acb\u6c42\u9032\u7a0b\u7d42\u6b62\u3002<\/li>\n<li><code>SIGKILL<\/code>\uff1a\u5f37\u5236\u7d42\u6b62\u4fe1\u865f\uff0c\u7121\u6cd5\u88ab\u6355\u7372\u6216\u5ffd\u7565\u3002<\/li>\n<li><code>SIGSEGV<\/code>\uff1a\u6bb5\u932f\u8aa4\u4fe1\u865f\uff0c\u7576\u9032\u7a0b\u8a66\u5716\u8a2a\u554f\u672a\u5206\u914d\u7684\u5167\u5b58\u6642\u767c\u751f\u3002<\/li>\n<li><code>SIGALRM<\/code>\uff1a\u8a08\u6642\u5668\u5230\u671f\u4fe1\u865f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%a1%e8%99%9f%e8%99%95%e7%90%86%e5%87%bd%e6%95%b8%e7%9a%84%e8%a8%ad%e7%bd%ae-zYArFWWVDS\">\u4fe1\u865f\u8655\u7406\u51fd\u6578\u7684\u8a2d\u7f6e<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>signal()<\/code>\u51fd\u6578\u6216<code>sigaction()<\/code>\u51fd\u6578\u4f86\u8a2d\u7f6e\u4fe1\u865f\u8655\u7406\u51fd\u6578\u3002<code>signal()<\/code>\u51fd\u6578\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>void (*signal(int sig, void (*func)(int)))(int);\n<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>sig<\/code>\u662f\u8981\u8655\u7406\u7684\u4fe1\u865f\uff0c<code>func<\/code>\u662f\u7528\u65bc\u8655\u7406\u8a72\u4fe1\u865f\u7684\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>signal()<\/code>\u51fd\u6578\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>#include &lt;stdio.h&gt;\n#include &lt;signal.h&gt;\n#include &lt;stdlib.h&gt;\n\nvoid handle_sigint(int sig) {\n    printf(\"\u6355\u7372\u5230SIGINT\u4fe1\u865f\uff0c\u6b63\u5728\u9000\u51fa...n\");\n    exit(0);\n}\n\nint main() {\n    signal(SIGINT, handle_sigint);\n    while (1) {\n        printf(\"\u7a0b\u5e8f\u904b\u884c\u4e2d\uff0c\u6309Ctrl+C\u9000\u51fa...n\");\n        sleep(1);\n    }\n    return 0;\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576\u7528\u6236\u6309\u4e0bCtrl+C\u6642\uff0c\u7a0b\u5e8f\u6703\u6355\u7372\u5230<code>SIGINT<\/code>\u4fe1\u865f\uff0c\u4e26\u57f7\u884c<code>handle_sigint<\/code>\u51fd\u6578\uff0c\u6700\u7d42\u5b89\u5168\u9000\u51fa\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8sigaction%e8%a8%ad%e7%bd%ae%e4%bf%a1%e8%99%9f%e8%99%95%e7%90%86-zYArFWWVDS\">\u4f7f\u7528sigaction()\u8a2d\u7f6e\u4fe1\u865f\u8655\u7406<\/h2>\n<p>\u76f8\u6bd4<code>signal()<\/code>\uff0c<code>sigaction()<\/code>\u63d0\u4f9b\u4e86\u66f4\u5f37\u5927\u7684\u529f\u80fd\u548c\u66f4\u597d\u7684\u53ef\u79fb\u690d\u6027\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528<code>sigaction()<\/code>\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>#include &lt;stdio.h&gt;\n#include &lt;signal.h&gt;\n#include &lt;stdlib.h&gt;\n\nvoid handle_sigterm(int sig) {\n    printf(\"\u6355\u7372\u5230SIGTERM\u4fe1\u865f\uff0c\u6b63\u5728\u9000\u51fa...n\");\n    exit(0);\n}\n\nint main() {\n    struct sigaction sa;\n    sa.sa_handler = handle_sigterm;\n    sigemptyset(&amp;sa.sa_mask);\n    sa.sa_flags = 0;\n\n    sigaction(SIGTERM, &amp;sa, NULL);\n    while (1) {\n        printf(\"\u7a0b\u5e8f\u904b\u884c\u4e2d\uff0c\u767c\u9001SIGTERM\u4fe1\u865f\u4ee5\u9000\u51fa...n\");\n        sleep(1);\n    }\n    return 0;\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u7576\u9032\u7a0b\u63a5\u6536\u5230<code>SIGTERM<\/code>\u4fe1\u865f\u6642\uff0c\u6703\u57f7\u884c<code>handle_sigterm<\/code>\u51fd\u6578\uff0c\u4e26\u5b89\u5168\u9000\u51fa\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zYArFWWVDS\">\u7e3d\u7d50<\/h2>\n<p>\u4fe1\u865f\u8655\u7406\u662fLinux\u7cfb\u7d71\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0cC\u8a9e\u8a00\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u8655\u7406\u4fe1\u865f\u3002\u901a\u904e\u4f7f\u7528<code>signal()<\/code>\u548c<code>sigaction()<\/code>\u51fd\u6578\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u9032\u7a0b\u5c0d\u5404\u7a2e\u4fe1\u865f\u7684\u97ff\u61c9\u884c\u70ba\u3002\u9019\u5c0d\u65bc\u958b\u767c\u7a69\u5b9a\u548c\u53ef\u9760\u7684\u61c9\u7528\u7a0b\u5e8f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5728Linux\u74b0\u5883\u4e2d\u904b\u884cC\u8a9e\u8a00\u7a0b\u5e8f\u6709\u8208\u8da3\uff0c\u4e26\u5e0c\u671b\u5c0b\u627e\u5408\u9069\u7684\u4e3b\u6a5f\u65b9\u6848\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u914d\u7f6e\u9078\u64c7\uff0c\u52a9\u60a8\u8f15\u9b06\u90e8\u7f72\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3C\u8a9e\u8a00\u5728Linux\u4e0b\u7684\u4fe1\u865f\u8655\u7406\u65b9\u5f0f\uff0c\u638c\u63e1\u4fe1\u865f\u7684\u6355\u7372\u3001\u8655\u7406\u53ca\u61c9\u7528\uff0c\u63d0\u5347\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u8207\u6548\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-198696","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198696","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=198696"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198696\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=198696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=198696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=198696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}