\u5047\u8bbe\u6211\u4eec\u7528Golang\u7f16\u5199\u4e86\u4e00\u4e2a\u8bfb\u53d6\u5e76\u5904\u7406\u4f20\u611f\u5668\u6570\u636e\u7684\u8fdb\u7a0b\u3002
\n\u5728\u4f17\u591a\u8fdb\u7a0b\u4e2d\uff0c\u6211\u4eec\u5e0c\u671b\u8be5\u8fdb\u7a0b\u4e0d\u88ab\u592a\u8fc7\u62d6\u540e\u817f\uff0c\u56e0\u6b64\u6211\u4eec\u60f3\u5c06\u5176\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3aFIFO\u7ea7\u522b\u3002<\/p>\n
Golang\u7684goroutine\u65e0\u6cd5\u63a7\u5236\u5728\u54ea\u4e2a\u7ebf\u7a0b\u4e0a\u8fd0\u884c\u3002\u56e0\u6b64\uff0c\u5373\u4f7f\u5728goroutine\u5185\u90e8\u8c03\u7528\u8bbe\u7f6e\u7ebf\u7a0b\u4f18\u5148\u7ea7\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u7ed3\u679c\u4e5f\u662f\u4e0d\u786e\u5b9a\u7684\u3002<\/p>\n
\u56e0\u6b64\uff0c\u6211\u5148\u8bbe\u7f6e\u4e86\u81ea\u5df1\u6d41\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u7136\u540e\u521b\u5efa\u4e86\u4e00\u4e2a\u7528\u4e8e\u6267\u884cGolang\u53ef\u6267\u884c\u6587\u4ef6\u7684\u5de5\u5177\u3002<\/p>\n
#include <stdio.h>\r\n#include <stdlib.h>\r\n#include <sched.h>\r\n#include <unistd.h>\r\n<\/span>\r\nint<\/span> run_fifoprio<\/span>(<\/span>int<\/span> fifoprio<\/span>,<\/span> char<\/span>**<\/span> cmd<\/span>)<\/span>\r\n{<\/span>\r\n struct<\/span> sched_param<\/span> param<\/span>;<\/span>\r\n\r\n param<\/span>.<\/span>sched_priority<\/span> =<\/span> fifoprio<\/span>;<\/span>\r\n if<\/span> (<\/span>sched_setscheduler<\/span>(<\/span>0<\/span>,<\/span> SCHED_FIFO<\/span>,<\/span> &<\/span>param<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>\r\n perror<\/span>(<\/span>\"sched_setscheduler\"<\/span>);<\/span>\r\n return<\/span> -<\/span>1<\/span>;<\/span>\r\n }<\/span>\r\n return<\/span> execvp<\/span>(<\/span>cmd<\/span>[<\/span>0<\/span>],<\/span> cmd<\/span>);<\/span>\r\n}<\/span>\r\n\r\n\r\nint<\/span> main<\/span>(<\/span>int<\/span> argc<\/span>,<\/span> char<\/span>**<\/span> argv<\/span>)<\/span>\r\n{<\/span>\r\n if<\/span> (<\/span>argc<\/span> <<\/span> 3<\/span>)<\/span> {<\/span>\r\n printf<\/span>(<\/span>\"usage: %s fifo_prio command ... <\/span>\\n<\/span>\"<\/span>,<\/span> argv<\/span>[<\/span>0<\/span>]);<\/span>\r\n return<\/span> 0<\/span>;<\/span>\r\n }<\/span>\r\n return<\/span> (<\/span>run_fifoprio<\/span>(<\/span>atoi<\/span>(<\/span>argv<\/span>[<\/span>1<\/span>]),<\/span> &<\/span>argv<\/span>[<\/span>2<\/span>]));<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u4f7f\u7528\u65b9\u6cd5 (sh\u01d0 f\u01ce)<\/h2>\n
\u4f7f\u7528FIFO\u4f18\u5148\u7ea710\u6267\u884c\u540d\u4e3afoo\u7684Golang\u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n
$ run_fifo_prio 10 foo\r\n<\/code><\/pre>\n\u9650\u5236\u4e8b\u9879<\/h2>\n
\u666e\u901a\u7528\u6237\u6ca1\u6709\u6743\u9650\u8bbe\u7f6e\u4e3aFIFO\u4f18\u5148\u7ea7\uff0c\u6240\u4ee5\u9700\u8981\u4ee5root\u6743\u9650\u6765\u6267\u884c\u3002<\/p>\n
\u9644\u52a0\u4fe1\u606f<\/h1>\n
\u5982\u679c\u4f60\u60f3\u5728\u6ca1\u6709root\u6743\u9650\u7684\u60c5\u51b5\u4e0b\u8fd0\u884cGolang\u8fdb\u7a0b\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u7ed9run_fifoprio\u5206\u914dCAP_SYS_NICE\u7684\u80fd\u529b\uff0c\u8fd9\u6837\u5e94\u8be5\u53ef\u4ee5\u6210\u529f\uff08\u4f46\u5728ARM Linux\u4e0a\u5c1a\u672a\u7ecf\u8fc7\u9a8c\u8bc1\uff09\u3002<\/p>\n
\u4f7f\u7528sudo\u8bbe\u7f6e\u6743\u9650<\/p>\n
sudo setcap cap_sys_nice=ep run_fifoprio<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5047\u8bbe\u6211\u4eec\u7528Golang\u7f16\u5199\u4e86\u4e00\u4e2a\u8bfb\u53d6\u5e76\u5904\u7406\u4f20\u611f\u5668\u6570\u636e\u7684\u8fdb\u7a0b\u3002 \u5728\u4f17\u591a\u8fdb\u7a0b\u4e2d\uff0c\u6211\u4eec\u5e0c\u671b\u8be5\u8fdb\u7a0b\u4e0d\u88ab\u592a\u8fc7\u62d6\u540e\u817f\uff0c\u56e0\u6b64 […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44488","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
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