{"id":410,"date":"2016-08-19T15:09:27","date_gmt":"2016-08-19T07:09:27","guid":{"rendered":"http:\/\/www.5x44.cn\/?p=410"},"modified":"2016-08-19T15:09:27","modified_gmt":"2016-08-19T07:09:27","slug":"wait3%e5%92%8cwait4%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=410","title":{"rendered":"wait3\u548cwait4\u51fd\u6570"},"content":{"rendered":"<p>\u591a\u6570unix\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e24\u4e2a\u989d\u5916\u7684\u51fd\u6570\uff1a<span style=\"color: #993300;\">wait3<\/span>\u548c<span style=\"color: #993300;\">wait4<\/span>\u3002\u5b83\u7684\u529f\u80fd\u5e76\u4e0d\u662f\u50cf<span style=\"color: #993300;\">wait<\/span>\uff0c<span style=\"color: #993300;\">waitid<\/span>\u548c<span style=\"color: #993300;\">waitpid<\/span>\u51fd\u6570\u4e00\u6837\uff0c\u800c\u662f\u8fd4\u56de\u7ec8\u6b62\u8fdb\u7a0b\u53ca\u5176\u6240\u6709\u5b50\u8fdb\u7a0b\u6240\u5360\u7528\u7684\u8d44\u6e90\u7684\u6c47\u603b\u3002<\/p>\n<table class=\"allBorders\" border=\"1\" rules=\"none\" cellspacing=\"0\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td class=\"docTableCell\" align=\"left\" valign=\"top\">\n<pre><span style=\"color: #993300;\">#include &lt;sys\/types.h&gt;\r\n#include &lt;sys\/wait.h&gt;\r\n#include &lt;sys\/time.h&gt;\r\n#include &lt;sys\/resource.h&gt;\r\n\r\npid_t wait3(int *<span class=\"docEmphItalicAlt\">statloc<\/span>, int <span class=\"docEmphItalicAlt\">options<\/span>, struct\r\n rusage *<span class=\"docEmphItalicAlt\">rusage<\/span>);\r\n\r\npid_t wait4(pid_t <span class=\"docEmphItalicAlt\">pid<\/span>, int *<span class=\"docEmphItalicAlt\">statloc<\/span>, int <span class=\"docEmphItalicAlt\">options<\/span>,\r\n struct rusage *<span class=\"docEmphItalicAlt\">rusage<\/span>);\r\n<\/span><\/pre>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"docTableCell\" align=\"right\" valign=\"top\">\n<p class=\"docText\">Both return: process ID if OK, 0, or 1 on error<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>\u8d44\u6e90\u4fe1\u606f\u5305\u542b\uff1a\u7528\u6237CPU\u65f6\u95f4\u6c47\u603b\u7edf\u8ba1\uff0c\u7cfb\u7edfCPU\u65f6\u95f4\u603b\u91cf\uff0c\u5931\u6548\u9875\u9762\u6570\uff0c\u5df2\u6536\u5230\u7684\u4fe1\u53f7\u6570\uff0c\u7b49\u7b49\u3002\u67e5\u770bgetrusage\u7cfb\u7edf\u624b\u518c\u6709\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u591a\u6570unix\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e24\u4e2a\u989d\u5916\u7684\u51fd\u6570\uff1await3\u548cwait4\u3002\u5b83\u7684\u529f\u80fd\u5e76\u4e0d\u662f\u50cfwait\uff0cwaitid\u548cwaitpid\u51fd\u6570\u4e00\u6837\uff0c\u800c\u662f\u8fd4\u56de\u7ec8\u6b62\u8fdb\u7a0b\u53ca\u5176\u6240\u6709\u5b50\u8fdb\u7a0b\u6240\u5360&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.5x44.cn\/?p=410\"> Read More<span class=\"screen-reader-text\">  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-410","post","type-post","status-publish","format-standard","hentry","category-apue"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/410","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=410"}],"version-history":[{"count":1,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/410\/revisions"}],"predecessor-version":[{"id":411,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/410\/revisions\/411"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}