{"id":632,"date":"2017-01-06T15:50:53","date_gmt":"2017-01-06T07:50:53","guid":{"rendered":"http:\/\/www.5x44.cn\/?p=632"},"modified":"2017-01-06T15:50:53","modified_gmt":"2017-01-06T07:50:53","slug":"kill%e5%92%8craise%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=632","title":{"rendered":"kill\u548craise\u51fd\u6570"},"content":{"rendered":"

kill<\/span>\u51fd\u6570\u53d1\u9001\u4fe1\u53f7\u5230\u8fdb\u7a0b\u6216\u8fdb\u7a0b\u7ec4\u3002raise<\/span>\u51fd\u6570\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\u5230\u5b83\u81ea\u5df1\u3002<\/p>\n

raise<\/span>\u66fe\u5b9a\u4e49\u4e8eISO C\u3002POSIX.1\u5305\u542b\u4e86\u8be5\u51fd\u6570\u5e76\u548cISO C\u6807\u51c6\u5bf9\u9f50\uff0c\u4f46\u662fPOSIX.1\u6269\u5c55\u4e86raise<\/span>\u7684\u7279\u6027\uff0c\u5177\u6709\u4e86\u7ebf\u7a0b\u529f\u80fd\u3002\u56e0\u4e3aISO C\u5e76\u4e0d\u652f\u6301\u591a\u8fdb\u7a0b\uff0c\u5b83\u4e0d\u80fd\u548ckill<\/span>\u8fd9\u6837\u7684\u51fd\u6570\u914d\u5408\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u9700\u8981\u8fdb\u7a0bID\u53c2\u6570\u3002<\/em><\/p>\n\n\n\n
\n\n\n\n\n
\n

<\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/p>\n

#include <signal.h>\r\n\r\nint kill(pid_t pid<\/span>, int signo<\/span>);\r\n\r\nint raise(int signo<\/span>);\r\n<\/span><\/pre>\n<\/td>\n<\/tr>\n
\n

Both return: 0 if OK, 1 on error<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8c03\u7528\uff1a<\/p>\n

raise(signo);<\/span><\/p>\n

\u7b49\u540c\u4e8e\u8c03\u7528<\/p>\n

kill(getpid(), signo);<\/span><\/p>\n

kill<\/span>\u51fd\u6570\u7684pid<\/em>\u53c2\u6570\u67094\u79cd\u4e0d\u540c\u7684\u6761\u4ef6\uff1a<\/p>\n

pid<\/em>><\/span>0\u00a0\u00a0\u00a0\u00a0\u00a0 \u4fe1\u53f7\u53d1\u9001\u5230\u8fdb\u7a0bID\u662fpid\u7684\u8fdb\u7a0b\u3002<\/p>\n

pid<\/em>==<\/span>0\u00a0\u00a0\u00a0 \u4fe1\u53f7\u53d1\u9001\u5230\u8fdb\u7a0b\u7ec4ID\u7b49\u4e8e\u8c03\u7528kill<\/span>\u51fd\u6570\u7684\u8fdb\u7a0b\u7ec4ID\u7684\u6240\u6709\u8fdb\u7a0b\u3002\u5e76\u4e14\u8be5\u8fdb\u7a0b\u8981\u6709\u53d1\u9001\u8be5\u4fe1\u53f7\u7684\u6743\u9650\u3002\u6ce8\u610f\uff1a\u672f\u8bed\u6240\u6709\u8fdb\u7a0b<\/em>\u4e0d\u5305\u542b\u5b9e\u73b0\u5b9a\u4e49\u7684\u7cfb\u7edf\u8fdb\u7a0b\u96c6\u3002\u5bf9\u4e8e\u591a\u6570UNIX\u7cfb\u7edf\uff0c\u8fd9\u4e2a\u7cfb\u7edf\u8fdb\u7a0b\u96c6\u5305\u542b\u4e86\u5185\u6838\u8fdb\u7a0b\u548cinit<\/span>\uff08pid\u662f1\uff09\u3002<\/p>\n

pid<\/em><<\/span>0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u4fe1\u53f7\u88ab\u53d1\u9001\u5230\u8fdb\u7a0b\u7ec4ID\u4e3apid\u7684\u7edd\u5bf9\u503c\u7684\u6240\u6709\u8fdb\u7a0b\uff0c\u8981\u4fdd\u8bc1\u8c03\u7528\u8005\u6709\u6743\u9650\u53d1\u9001\u8be5\u4fe1\u53f7\u3002\u540c\u6837\u6240\u6709\u8fdb\u7a0b\u5e76\u4e0d\u5305\u542b\u7cfb\u7edf\u8fdb\u7a0b\u96c6\u3002<\/p>\n

pid<\/em>==<\/span>1\u00a0\u00a0\u00a0\u00a0 \u4fe1\u53f7\u53d1\u9001\u5230\u7cfb\u7edf\u4e0a\u7684\u6240\u6709\u7684\u8fdb\u7a0b\uff08\u53ea\u5305\u542b\u90a3\u4e9b\u8be5\u8fdb\u7a0b\u6709\u6743\u9650\u7684\u8fdb\u7a0b\uff09\u3002\u540c\u6837\u4e0d\u5305\u542b\u7cfb\u7edf\u8fdb\u7a0b\u96c6\u3002<\/p>\n

\u5c31\u50cf\u6211\u4eec\u4e4b\u524d\u63d0\u5230\u7684\uff0c\u4e00\u4e2a\u8fdb\u7a0b\u9700\u8981\u6743\u9650\u624d\u80fd\u53d1\u9001\u4fe1\u53f7\u5230\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u3002\u8d85\u7ea7\u7528\u6237\u80fd\u53d1\u9001\u4fe1\u53f7\u5230\u4efb\u610f\u8fdb\u7a0b\u3002\u5bf9\u4e8e\u5176\u5b83\u7528\u6237\uff0c\u57fa\u672c\u89c4\u5219\u662f\uff1a\u53d1\u9001\u4fe1\u53f7\u8fdb\u7a0b\u7684\u5b9e\u9645\u6216\u6709\u6548\u7528\u6237ID\u5fc5\u987b\u7b49\u4e8e\u63a5\u6536\u4fe1\u53f7\u7684\u5b9e\u9645\u6216\u6709\u6548\u7528\u6237\u3002\u5982\u679c\u5b9e\u73b0\u652f\u6301_POSIX_SAVED_IDS<\/span>\uff08POSIX.1\u8981\u6c42\uff09\uff0c\u68c0\u67e5\u63a5\u6536\u8005\u7684SAVED SET-USER-ID\u4ee3\u66ff\u5b83\u68c0\u67e5\u7684\u6709\u6548\u7528\u6237ID\u3002\u4e5f\u6709\u4e00\u4e2a\u6743\u9650\u6d4b\u8bd5\u7684\u7279\u6b8a\u6848\u4f8b\uff1a\u5982\u679c\u5f00\u59cb\u53d1\u9001SIGCONT<\/span>\u4fe1\u53f7\uff0c\u8fdb\u7a0b\u53ef\u4ee5\u5728\u540c\u4e00\u4f1a\u8bdd\u4e2d\u53d1\u9001\u5230\u4efb\u610f\u5176\u5b83\u8fdb\u7a0b\u3002<\/p>\n

POSIX.1\u5b9a\u4e49\u4e860\u53f7\u4fe1\u53f7\u505a\u4e3a\u7a7a\u4fe1\u53f7\u3002\u5982\u679csigno<\/em>\u53c2\u6570\u662f0\uff0c\u90a3\u4e48kill<\/span>\u6267\u884c\u4e00\u822c\u9519\u8bef\u68c0\u67e5\uff0c\u4f46\u662f\u4e0d\u53d1\u9001\u4efb\u4f55\u4fe1\u53f7\u3002\u8fd9\u901a\u5e38\u7528\u4e8e\u786e\u5b9a\u4e00\u4e2a\u7279\u5b9a\u7684\u8fdb\u7a0b\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u6211\u4eec\u5411\u4e00\u4e2a\u8fdb\u7a0b\u53d1\u9001\u7a7a\u4fe1\u53f7\u5e76\u4e14\u8be5\u8fdb\u7a0b\u4e0d\u5b58\u5728\uff0ckill<\/span>\u8fd4\u56de1\u5e76errno<\/span>\u8bbe\u7f6e\u6210ESRCH<\/span>\u3002\u8981\u77e5\u9053\uff0cUNIX\u7cfb\u7edf\u6bcf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u90fd\u8981\u56de\u6536\u8fdb\u7a0bID\uff0c\u6240\u4ee5\u5e76\u4e0d\u662f\u7ed9\u51fa\u7684ID\u90fd\u662f\u5b58\u5728\u6709\u6548\u7684\u3002<\/p>\n

\u540c\u6837\u8981\u77e5\u9053\uff0c\u8fd9\u4e2a\u6d4b\u8bd5\u8fdb\u7a0b\u662f\u5426\u5b58\u5728\u5e76\u4e0d\u662f\u539f\u5b50\u64cd\u4f5c\u3002\u53ef\u80fd\u5728kill\u8fd4\u56de\u503c\u7684\u540c\u65f6\uff0c\u8be5\u8fdb\u7a0b\u53c8\u5b58\u5728\u4e86\uff0c\u6240\u4ee5\u8fd9\u4e2a\u7b54\u6848\u4e5f\u662f\u6709\u5f85\u5546\u69b7\u7684\u3002<\/p>\n

\u5982\u679c\u8c03\u7528\u67d0\u8fdb\u7a0b\u8c03\u7528kill<\/span>\u4ea7\u751f\u7684\u4fe1\u53f7\uff0c\u5bf9\u4e8e\u8be5\u8fdb\u7a0b\u6765\u8bf4\uff0c\u5982\u679c\u4fe1\u53f7\u6ca1\u6709\u88ab\u963b\u585e\uff0c\u8981\u4e48signo<\/em>\u6216\u5176\u5b83\u6b63\u5728\u51c6\u5907\uff0c\u89e3\u9664\u963b\u585e\u4fe1\u53f7\u88ab\u4ea4\u4ed8\u5230\u8be5\u8fdb\u7a0b\u8981\u5148\u4e8ekill<\/span>\u51fd\u6570\u8fd4\u56de\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

kill\u51fd\u6570\u53d1\u9001\u4fe1\u53f7\u5230\u8fdb\u7a0b\u6216\u8fdb\u7a0b\u7ec4\u3002raise\u51fd\u6570\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\u5230\u5b83\u81ea\u5df1\u3002 raise\u66fe\u5b9a\u4e49\u4e8eISO C\u3002POSIX.1\u5305\u542b\u4e86\u8be5\u51fd\u6570\u5e76\u548cISO C\u6807\u51c6\u5bf9\u9f50…<\/p>\n

Read More Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-632","post","type-post","status-publish","format-standard","hentry","category-apue"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=632"}],"version-history":[{"count":3,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions"}],"predecessor-version":[{"id":635,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions\/635"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}