{"id":126376,"date":"2023-03-23T16:53:19","date_gmt":"2023-03-23T08:53:19","guid":{"rendered":"http:\/\/www.idc.net\/help\/126376\/"},"modified":"2023-03-23T16:53:19","modified_gmt":"2023-03-23T08:53:19","slug":"%e3%80%8c%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3linux-setitimer%e5%87%bd%e6%95%b0%e3%80%8d-linux-setitimer","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/126376\/","title":{"rendered":"\u300c\u6df1\u5165\u7406\u89e3Linux setitimer\u51fd\u6570\u300d (linux setitimer)"},"content":{"rendered":"<p>\u6df1\u5165\u7406\u89e3Linux setitimer\u51fd\u6570<\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0csetitimer\u51fd\u6570\u662f\u4e00\u79cd\u5f88\u91cd\u8981\u7684\u7cfb\u7edf\u8c03\u7528\u51fd\u6570\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u8bbe\u7f6e\u5b9a\u65f6\u5668\uff0c\u4ee5\u4fbf\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u6309\u7167\u6307\u5b9a\u7684\u65f6\u95f4\u95f4\u9694\u6267\u884c\u4efb\u52a1\u3002\u672c\u6587\u5c06\u63a2\u8ba8setitimer\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u53c2\u6570\u542b\u4e49\u4ee5\u53ca\u5185\u90e8\u5b9e\u73b0\u539f\u7406\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u6df1\u5165\u5730\u7406\u89e3\u8fd9\u4e2a\u51fd\u6570\u3002<\/p>\n<p>1. setitimer\u51fd\u6570\u7684\u5b9a\u4e49<\/p>\n<p>setitimer\u51fd\u6570\u662f\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528\u51fd\u6570\uff0c\u5176\u4e3b\u8981\u4f5c\u7528\u662f\u8bbe\u7f6e\u5b9a\u65f6\u5668\u3002\u8be5\u51fd\u6570\u5b9a\u4e49\u5728\u5934\u6587\u4ef6\u4e2d\uff0c\u5177\u4f53\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>int setitimer(int which, const struct itimerval *new_value, struct itimerval *old_value);<\/p>\n<p>\u5176\u4e2d\uff0cwhich\u53c2\u6570\u7528\u4e8e\u6307\u5b9a\u8981\u8bbe\u7f6e\u7684\u5b9a\u65f6\u5668\u7c7b\u578b\uff0c\u53ef\u4ee5\u4e3a\uff1a<\/p>\n<p>\u2013 ITIMER_REAL\uff1a\u7528\u4e8e\u5904\u7406\u771f\u5b9e\u65f6\u95f4\u3002<\/p>\n<p>\u2013 ITIMER_VIRTUAL\uff1a\u7528\u4e8e\u5904\u7406\u8fdb\u7a0b\u5360\u7528\u7684CPU\u65f6\u95f4\u3002<\/p>\n<p>\u2013 ITIMER_PROF\uff1a\u7528\u4e8e\u5904\u7406\u8fdb\u7a0b\u4ee5\u53ca\u5b83\u7684\u5b50\u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u3002<\/p>\n<p>new_value\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6e\u65b0\u7684\u65f6\u95f4\u95f4\u9694\uff0c old_value\u7528\u4e8e\u6307\u5b9a\u65e7\u7684\u65f6\u95f4\u95f4\u9694\u3002\u5982\u679c\u65e7\u7684\u65f6\u95f4\u95f4\u9694\u4e0d\u518d\u9700\u8981\uff0c\u53ef\u4ee5\u5c06\u5176\u503c\u8bbe\u4e3aNULL\u3002<\/p>\n<p>2. setitimer\u51fd\u6570\u7684\u53c2\u6570\u542b\u4e49<\/p>\n<p>\u5728\u4f7f\u7528setitimer\u51fd\u6570\u65f6\uff0c\u9700\u8981\u4e86\u89e3\u5176\u53c2\u6570\u7684\u542b\u4e49\u3002\u4e0b\u9762\u662f\u5bf9\u6bcf\u4e2a\u53c2\u6570\u7684\u89e3\u91ca\uff1a<\/p>\n<p>a) which\u53c2\u6570<\/p>\n<p>which\u53c2\u6570\u6307\u5b9a\u4e86\u8981\u8bbe\u7f6e\u7684\u5b9a\u65f6\u5668\u7c7b\u578b\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5171\u6709\u4e09\u79cd\u5b9a\u65f6\u5668\u7c7b\u578b\uff0c\u5206\u522b\u4e3aITIMER_REAL\u3001ITIMER_VIRTUAL\u548cITIMER_PROF\u3002<\/p>\n<p>\u5176\u4e2d\uff0cITIMER_REAL\u7528\u4e8e\u5904\u7406\u771f\u5b9e\u65f6\u95f4\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5982\u679c\u5b9a\u65f6\u5668\u65f6\u95f4\u5230\u4e86\uff0c\u5185\u6838\u4f1a\u5411\u8fdb\u7a0b\u53d1\u9001SIGALRM\u4fe1\u53f7\u3002\u8be5\u4fe1\u53f7\u53ef\u4ee5\u88ab\u6355\u83b7\u5e76\u5bf9\u5176\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p>ITIMER_VIRTUAL\u7528\u4e8e\u5904\u7406\u8fdb\u7a0b\u5360\u7528\u7684CPU\u65f6\u95f4\u3002\u6bcf\u6b21\u8fdb\u7a0b\u8fd0\u884c\u65f6\uff0c\u8fdb\u7a0b\u5360\u7528\u7684CPU\u65f6\u95f4\u90fd\u4f1a\u88ab\u7d2f\u52a0\u5230ITIMER_VIRTUAL\u5b9a\u65f6\u5668\u4e2d\uff0c\u5f53\u5b9a\u65f6\u5668\u65f6\u95f4\u5230\u4e86\uff0c\u5185\u6838\u4e5f\u4f1a\u5411\u8fdb\u7a0b\u53d1\u9001SIGVTALRM\u4fe1\u53f7\u3002<\/p>\n<p>ITIMER_PROF\u7528\u4e8e\u5904\u7406\u8fdb\u7a0b\u4ee5\u53ca\u5b83\u7684\u5b50\u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u3002\u6bcf\u6b21\u8fdb\u7a0b\u6216\u5176\u5b50\u8fdb\u7a0b\u8fd0\u884c\u65f6\uff0c\u5360\u7528\u7684CPU\u65f6\u95f4\u90fd\u4f1a\u88ab\u7d2f\u52a0\u5230ITIMER_PROF\u5b9a\u65f6\u5668\u4e2d\u3002\u5f53\u5b9a\u65f6\u5668\u65f6\u95f4\u5230\u4e86\uff0c\u5185\u6838\u4f1a\u5411\u8fdb\u7a0b\u53d1\u9001SIGPROF\u4fe1\u53f7\u3002<\/p>\n<p>b) new_value\u53c2\u6570<\/p>\n<p>new_value\u53c2\u6570\u7528\u4e8e\u8bbe\u7f6e\u65b0\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u4ee5\u53ca\u5b9a\u65f6\u5668\u7684\u4e00\u4e2a\u521d\u59cb\u503c\u3002\u8be5\u53c2\u6570\u662f\u4e00\u4e2a\u6307\u5411itimerval\u7ed3\u6784\u4f53\u7684\u6307\u9488\uff0c\u8be5\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>struct itimerval {<\/p>\n<p> struct timeval it_interval; \/* timer interval *\/<\/p>\n<p> struct timeval it_value; \/* current value *\/<\/p>\n<p>};<\/p>\n<p>\u5728\u8be5\u7ed3\u6784\u4f53\u4e2d\uff0cit_interval\u6210\u5458\u7528\u4e8e\u8868\u793a\u5b9a\u65f6\u5668\u65f6\u95f4\u95f4\u9694\uff0cit_value\u5219\u8868\u793a\u5b9a\u65f6\u5668\u7684\u521d\u59cb\u503c\u3002\u5176\u4e2d\uff0cit_interval\u548cit_value\u90fd\u662f\u4e00\u4e2atimeval\u7ed3\u6784\u4f53\u7c7b\u578b\u7684\u503c\u3002<\/p>\n<p>timeval\u7ed3\u6784\u4f53\u7684\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>struct timeval {<\/p>\n<p> time_t tv_sec; \/* seconds *\/<\/p>\n<p> suseconds_t tv_usec; \/* microseconds *\/<\/p>\n<p>};<\/p>\n<p>\u8be5\u7ed3\u6784\u4f53\u6210\u5458tv_sec\u7528\u4e8e\u8868\u793a\u79d2\u6570\uff0ctv_usec\u7528\u4e8e\u8868\u793a\u5fae\u79d2\u6570\u3002<\/p>\n<p>c) old_value\u53c2\u6570<\/p>\n<p>old_value\u53c2\u6570\u7528\u4e8e\u4fdd\u5b58\u65e7\u7684\u65f6\u95f4\u95f4\u9694\u3002\u8be5\u53c2\u6570\u662f\u4e00\u4e2a\u6307\u5411itimerval\u7ed3\u6784\u4f53\u7684\u6307\u9488\u3002<\/p>\n<p>3. setitimer\u51fd\u6570\u7684\u4f7f\u7528\u793a\u4f8b<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528setitimer\u51fd\u6570\u5b9e\u73b0\u5b9a\u65f6\u5668\u529f\u80fd\u3002<\/p>\n<p>\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528ITIMER_REAL\u5b9a\u65f6\u5668\uff0c\u6bcf\u9694\u4e09\u79d2\u949f\u5411\u6807\u51c6\u8f93\u51fa\u6253\u5370\u4e00\u53e5\u201cHello, World!\u201d\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<p>#include <\/p>\n<\/p>\n<p>#include <\/p>\n<\/p>\n<p>#include <\/p>\n<\/p>\n<p>#include <\/p>\n<\/p>\n<p>#include <\/p>\n<\/p>\n<p>\/* SIGALRM\u4fe1\u53f7\u5904\u7406\u51fd\u6570 *\/<\/p>\n<p>void handler(int sig)<\/p>\n<p>{<\/p>\n<p> printf(\u201cHello, World!\\n\u201d);<\/p>\n<p>}<\/p>\n<p>int mn()<\/p>\n<p>{<\/p>\n<p> struct itimerval value;<\/p>\n<p> \/* \u8bbe\u7f6e\u5b9a\u65f6\u5668\u65f6\u95f4\u95f4\u9694 *\/<\/p>\n<p> value.it_value.tv_sec = 3;<\/p>\n<p> value.it_value.tv_usec = 0;<\/p>\n<p> value.it_interval.tv_sec = 3;<\/p>\n<p> value.it_interval.tv_usec = 0;<\/p>\n<p> \/* \u6ce8\u518c\u4fe1\u53f7\u5904\u7406\u51fd\u6570 *\/<\/p>\n<p> if(signal(SIGALRM, handler) == SIG_ERR)<\/p>\n<p> {<\/p>\n<p> perror(\u201csignal error\u201d);<\/p>\n<p> exit(EXIT_FLURE);<\/p>\n<p> }<\/p>\n<p> \/* \u5f00\u59cb\u8ba1\u65f6 *\/<\/p>\n<p> if(setitimer(ITIMER_REAL, &amp;value, NULL) == -1)<\/p>\n<p> {<\/p>\n<p> perror(\u201csetitimer error\u201d);<\/p>\n<p> exit(EXIT_FLURE);<\/p>\n<p> }<\/p>\n<p> \/* \u8fd0\u884c\u7a0b\u5e8f *\/<\/p>\n<p> while(1);<\/p>\n<p> return 0;<\/p>\n<p>}<\/p>\n<p>\u5728\u672c\u4f8b\u4e2d\uff0c\u9996\u5148\u5b9a\u4e49\u4e86\u4e00\u4e2asetitimer\u7ed3\u6784\u4f53\u53d8\u91cfvalue\uff0c\u7528\u4e8e\u8bbe\u7f6e\u65f6\u95f4\u95f4\u9694\uff0c\u4ee5\u53ca\u5b9a\u65f6\u5668\u7684\u521d\u59cb\u503c\u3002<\/p>\n<p>\u63a5\u7740\uff0c\u6211\u4eec\u6ce8\u518c\u4e86\u4e00\u4e2a\u4fe1\u53f7\u5904\u7406\u51fd\u6570\uff0c\u7528\u4e8e\u5904\u7406SIGALRM\u4fe1\u53f7\u3002\u5f53\u5b9a\u65f6\u5668\u65f6\u95f4\u5230\u4e86\uff0c\u5185\u6838\u4f1a\u5411\u8fdb\u7a0b\u53d1\u9001\u8be5\u4fe1\u53f7\u3002<\/p>\n<p>\u7136\u540e\uff0c\u4f7f\u7528setitimer\u51fd\u6570\u5f00\u59cb\u8ba1\u65f6\u3002\u8fd9\u65f6\uff0cITIMER_REAL\u5b9a\u65f6\u5668\u5f00\u59cb\u5de5\u4f5c\uff0c\u6bcf\u96943\u79d2\u949f\u5c31\u4f1a\u5411\u8fdb\u7a0b\u53d1\u9001\u4e00\u4e2aSIGALRM\u4fe1\u53f7\u3002<\/p>\n<p>\u6211\u4eec\u5728\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u4e86\u4e00\u4e2a\u65e0\u9650\u5faa\u73af\uff0c\u786e\u4fdd\u7a0b\u5e8f\u4e00\u76f4\u4fdd\u6301\u8fd0\u884c\u72b6\u6001\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u8fd0\u884c\u8fd9\u4e2a\u7a0b\u5e8f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6bcf\u9694\u4e09\u79d2\u949f\uff0c\u5c4f\u5e55\u4e0a\u5c31\u4f1a\u51fa\u73b0\u4e00\u53e5\u201cHello, World!\u201d\u3002<\/p>\n<p>4. setitimer\u51fd\u6570\u7684\u5185\u90e8\u5b9e\u73b0\u539f\u7406<\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0csetitimer\u51fd\u6570\u7684\u5185\u90e8\u5b9e\u73b0\u65b9\u5f0f\u6bd4\u8f83\u590d\u6742\u3002\u5f53\u6211\u4eec\u4f7f\u7528setitimer\u51fd\u6570\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u5411\u5185\u6838\u53d1\u9001\u4e00\u4e2aSIGALRM\u3001SIGVTALRM\u6216SIGPROF\u4fe1\u53f7\uff0c\u5e76\u8bbe\u7f6e\u8be5\u4fe1\u53f7\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n<p>\u5728Linux\u5185\u6838\u4e2d\uff0cSIGALRM\u3001SIGVTALRM\u548cSIGPROF\u4fe1\u53f7\u90fd\u6709\u4e00\u4e2a\u76f8\u5e94\u7684\u5904\u7406\u51fd\u6570\u3002\u5f53\u8be5\u4fe1\u53f7\u88ab\u89e6\u53d1\u65f6\uff0c\u5185\u6838\u4f1a\u8c03\u7528\u8be5\u4fe1\u53f7\u7684\u5904\u7406\u51fd\u6570\u3002\u5728\u5185\u6838\u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5168\u5c40\u7684\u5b9a\u65f6\u5668\u94fe\u8868\uff0c\u7528\u6765\u5b58\u50a8\u6240\u6709\u7684\u5b9a\u65f6\u5668\u3002<\/p>\n<p>\u5728\u8fdb\u884csetitimer\u51fd\u6570\u8c03\u7528\u65f6\uff0c\u5185\u6838\u4f1a\u5c06\u5b9a\u65f6\u5668\u4fe1\u606f\u52a0\u5165\u5230\u8be5\u94fe\u8868\u4e2d\u3002\u5b9a\u65f6\u5668\u8c03\u7528\u7684\u987a\u5e8f\u662f\u6309\u7167\u5b9a\u65f6\u5668\u65f6\u95f4\u987a\u5e8f\u6392\u5217\u7684\uff0c\u56e0\u6b64\uff0c\u5f53\u4e00\u4e2a\u5b9a\u65f6\u5668\u65f6\u95f4\u5230\u4e86\uff0c\u5185\u6838\u4f1a\u627e\u5230\u5b9a\u65f6\u5668\u94fe\u8868\u4e2d\u6700\u65e9\u7684\u5b9a\u65f6\u5668\uff0c\u5e76\u5c06\u8be5\u5b9a\u65f6\u5668\u7684\u4fe1\u606f\u4ece\u94fe\u8868\u4e2d\u79fb\u9664\uff0c\u7136\u540e\u89e6\u53d1\u76f8\u5e94\u7684\u4fe1\u53f7\u3002<\/p>\n<p>\u5f53\u8fdb\u7a0b\u6536\u5230\u76f8\u5e94\u7684\u4fe1\u53f7\u65f6\uff0c\u5185\u6838\u4f1a\u6839\u636e\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u6765\u5904\u7406\u8be5\u4fe1\u53f7\u3002\u5728\u5904\u7406SIGALRM\u4fe1\u53f7\u65f6\uff0c\u4e00\u822c\u662f\u901a\u8fc7alarm\u6216setitimer\u51fd\u6570\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n<p>5. <\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>Linux\u7684kill\u51fd\u6570\u548cSIGUSR1\u4fe1\u53f7\u3002<\/li>\n<li>\u4f7f\u7528struct itimerval\u505a\u4e86\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u73b0\u5728\u6211\u5e0c\u671b\u5728\u6267\u884c\u4e00\u4e9b\u51fd\u6570\u7684\u65f6\u5019\u505c\u6b62\u8ba1\u65f6\uff0c\u600e\u4e48\u5904\u7406\uff1flinux c\u8bed\u8a00<\/li>\n<\/ul>\n<h3>Linux\u7684kill\u51fd\u6570\u548cSIGUSR1\u4fe1\u53f7\u3002<\/h3>\n<p>\u90a3\u5c31\u4ec0\u4e48\u4e5f\u6ca1\u6709\u53d1\u751f\u554a\u3002<\/p>\n<p>\u5bf9\u4e8e\u8fd9\u4e2a\u4fe1\u53f7\u800c\u8a00,\u6ca1\u6709\u4fe1\u53f7\u54cd\u5e94\u51fd\u6570\u7684\u8bdd,\u8fdb\u7a0b\u5e94\u8be5\u4f1a\u5f02\u5e38\u7ec8\u6b62,\u5bf9\u4e8e\u7cfb\u7edf\u5df2\u6709\u7684\u4fe1\u53f7\u4e00\u822c\u90fd\u662f\u6709\u9ed8\u8ba4\u5904\u7406\u7684,\u5177\u4f53\u7684\u6211\u6709\u70b9\u8bb0\u4e0d\u5f97\u4e86,\u641c\u4e0b\u5176\u5b9e\u5c31\u77e5\u9053\u4e86.\u6211\u5728\u7f51\u4e0a\u627e\u4e86\u4e0b\u5404\u4fe1\u53f7\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f,\u4f60\u770b\u770b\u5427,\u5bf9\u4f60\u6709\u6ca1\u6709\u7528<\/p>\n<p>\u4fe1\u53f7\u540d\u79f0 \u4fe1\u53f7\u8bf4\u660e \u9ed8\u8ba4\u5904\u7406<\/p>\n<p>SIGABRT \u7531\u7a0b\u5e8f\u8c03\u7528 abort\u65f6\u4ea7\u751f\u8be5\u4fe1\u53f7\u3002\u7a0b\u5e8f\u5f02\u5e38\u7ed3\u675f\u3002 \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGALRM timer\u5230\u671f\uff0c\u6709alarm\u6216\u8005setitimer \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGBUS \u603b\u7ebf\u9519\u8bef\uff0c\u5730\u5740\u6ca1\u5bf9\u9f50\u7b49\u3002\u53d6\u51b3\u4e8e\u5177\u4f53\u786c\u4ef6\u3002 \u7ed3\u675f\u7ec8\u6b62\u5e76\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGCHLD \u8fdb\u7a0b\u505c\u6b62\u6216\u8005\u7ec8\u6b62\u65f6\uff0c\u7236\u8fdb\u7a0b\u4f1a\u6536\u5230\u8be5\u4fe1\u53f7\u3002 \u5ffd\u7565\u8be5\u4fe1\u53f7<\/p>\n<p>SIGCONT \u8ba9\u505c\u6b62\u7684\u8fdb\u7a0b\u7ee7\u7eed\u6267\u884c\u7ee7\u7eed\u6267\u884c\u6216\u8005\u5ffd\u7565<\/p>\n<p>SIGFPE \u7b97\u672f\u8fd0\u7b97\u5f02\u5e38\uff0c\u96640\u7b49\u3002\u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6\u3002<\/p>\n<p>SIGHUP \u7ec8\u7aef\u5173\u95ed\u65f6\u4ea7\u751f\u8fd9\u4e2a\u4fe1\u53f7 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGILL \u4ee3\u7801\u4e2d\u6709\u975e\u6cd5\u6307\u4ee4 \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGINT \u7ec8\u7aef\u8f93\u5165\u4e86\u4e2d\u65ad\u5b57\u7b26ctrl+c\u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGIO \u5f02\u6b65I\/O,\u8ddfSIGPOLL\u4e00\u6837\u3002 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGIOT \u6267\u884cI\/O\u65f6\u4ea7\u751f\u786c\u4ef6\u9519\u8bef \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGKILL \u8fd9\u4e2a\u4fe1\u53f7\u7528\u6237\u4e0d\u80fd\u53bb\u6355\u6349\u5b83\u3002 \u8fdb\u7f13\u76ef\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGPIPE \u5f80\u7ba1\u9053\u5199\u65f6\uff0c\u8bfb\u8005\u5df2\u7ecf\u4e0d\u5728\u4e86\uff0c\u6216\u8005\u5f80\u4e00\u4e2a\u5df2\u65ad\u5f00<\/p>\n<p>\u6570\u636e\u6d41<\/p>\n<p>socket\u5199\u6570\u636e\u3002 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGPOLL \u5f02\u6b65I\/O\uff0c\u8ddfSIGIO\u4e00\u6837\u3002 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGPROF \u6709setitimer\u8bbe\u7f6e\u7684timer\u5230\u671f\u5f15\u53d1 \u3002 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGPWR Ups\u7535\u6e90\u5207\u6362\u65f6 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGQUIT Ctrl+\\\uff0c\u4e0d\u540c\u4e8eSIGINT\uff0c\u8fd9\u4e2a\u662f\u4f1a\u4ea7\u751fcore dump\u6587\u4ef6\u7684\u3002 \u8fdb\u4f0f\u6094\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGSEGV \u5185\u6270\u5385\u548c\u5b58\u975e\u6cd5\u8bbf\u95ee\uff0c\u9ed8\u8ba4\u6253\u5370\u51fasegment fault \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGSTOP \u67d0\u4e2a\u8fdb\u7a0b\u505c\u6b62\u6267\u884c\uff0c\u8be5\u4fe1\u53f7\u4e0d\u80fd\u88ab\u7528\u6237\u6355\u6349\u3002 \u8fdb\u7a0b\u6682\u505c\u6267\u884c<\/p>\n<p>SIGSYS \u8c03\u7528\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u8ba4\u8bc6\u7684\u7cfb\u7edf\u8c03\u7528\u3002 \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u4e14\u4ea7\u751fcore\u6587\u4ef6<\/p>\n<p>SIGTERM \u6709kill\u51fd\u6570\u8c03\u7528\u4ea7\u751f\u3002 \u8fdb\u7a0b\u7ec8\u6b62<\/p>\n<p>SIGTRAP \u6709\u8c03\u8bd5\u5668\u4f7f\u7528\uff0cgdb 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-126376","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/126376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=126376"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/126376\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=126376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=126376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=126376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}