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Linux¶¨Ê±Æ÷——setitimer()

setitimer()ÊDZȽϾ«×¼µÄ¶¨Ê±Æ÷£¬ÊÇLinuxµÄAPI
ÒÔÏ´úÂëÊǸöµ¹¼ÆÊ±Àý×Ó£º
#include <signal.h>
#include <sys/time.h>
static int time_count=30;
static void sigalrm_handler(int sig)
{
time_count--;
printf("timer signal.. %d\n", time_count);
}
struct itimerval v; //¶¨Ê±Æ÷½á¹¹Ìå
time_count=10; //Ôٴγõʼ»¯
signal(SIGALRM, sigalrm_handler);//°ó¶¨Ðźź¯Êý
v.it_value.tv_sec=1;
v.it_value.tv_usec=0;
v.it_interval.tv_sec=1;//¼ä¸ô1s
v.it_interval.tv_usec=0;
setitimer(ITIMER_REAL,&v,NULL); //½á¹¹Ì幨Áª£¬start
...
...
//=========½áÊø´Ë¶¨Ê±Æ÷=====================
v.it_value.tv_sec=0;
v.it_value.tv_usec=0;
v.it_interval.tv_sec=0;
v.it_interval.tv_usec=0;
setitimer(ITIMER_REAL,&v,NULL);

Ô­Àí¼ÈÊÇ 1s·¢ËÍSIGALRMÐźÅÒ»´Î£¬½«ÆäÖµÖÃÁ㼴Ϊ¹Ø±Õ£¬²»ÔÚ·¢ËÍÐźÅ


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LinuxÖ÷»ú¼à¿Ø¹¤¾ßmunin monit ntop

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±¾ÎĽéÉÜÔÚcentos 5.x»·¾³ÏÂͨ¹ýyumÔ´µÄÀ©Õ¹Ê¹ÓÃmunin¡¢ monit¡¢ntop¹¤¾ßÀ´¼à¹ÜÄãµÄÓ¦ÓóÌÐòºÍ·þÎñÆ÷¡£ÌâΪÀÁÈË˵˵µÄÊǼò±ãµÄ°²×°·½Ê½¶øÒÑ£¬½«Ç¿´óµÄ¹¦ÄÜÅäÖüòµ¥µÄÓ¦ÓÃÆðÀ´ÊǺÜÖØÒªµÄ£¬¿ÉÒÔ½Úʡʱ¼ä²¢Ìá¸ßЧÂÊ¡£
Monit£ºhttp:#www.tildeslas ......

LinuxϵͳÉϼÜÉèVSFTP·þÎñÆ÷ʵÀý½âÎö

     
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# rpm -ivh vsftpd-2.0.1-5.i386.r ......

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1.½«¸÷º¯Êý´úÂëËùÔÚµÄÔ´Îļþ±àÒë³ÉĿ¼Îļþ¡£ÀýÈ磬¶ÔÓÚmyfunc.c£¬¿ÉÒÔÓÃÈçÏÂÃüÁî ½«Æä±àÒë³ÉÄ¿±êÎļþ£º 
gcc -c myfunc.c 
µ±È»ÔÚÓжà¸öÔ´Îļþʱ£¬Ö»ÐèÔÚgcc ÃüÁîÐÐÖн«Æä·Ö±ðÁÐÉϾͿÉÒÔÁË¡£¾­´ËÒ»²½£¬½«Äܹ»µÃµ½¸÷Ô´ÎļþµÄÄ¿±êÎļþ¡£¶ÔÉÏÀý£¬½«µÃµ½myfunc.o
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LinuxÏÂTomcat 6.0.26 °²×°

ÎÒÓõÄÊÇ fedora 12 ×Ô´ýµÄjdk 1.6 ÔÚ /usr/lib/jvm/java-1.6.0-openjdk
µÚÒ»²½£º°Ñapache-tomcat-6.0.26.tar.gz½âѹºó·Åµ½/usr/local/ÏÂÖØÃüÃûΪapache-tomcat-6.0.26
µÚ¶þ²½£ºÔÚ/etc/profileÎļþÖÐÊʵ±µÄλÖÃÌí¼ÓÈçÏ»·¾³±äÁ¿
CATALINA_HOME=/usr/local/apache-tomcat-6.0.26
CATALINA_BASE=/usr/local/apache-tomcat ......
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