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linux ¶à½ø³Ìдһ¸öÎļþ dup fork

ÕâÊÇ´úÂ룺 #include #include #include #include int main(int argc, char** argv){ int fd; if((fd = open(argv[1],O_RDWR))<0){ printf("open file failed\n"); exit(1); } int i = 0; int status; char c; int pid; if((pid=fork()) < 0){ printf("fork failed\n"); exit(1); } else if (pid == 0){ ...

by zhangbiao2009 - C/C++ - 2009-06-18 10:13:13 ÔĶÁ£¨4823£© »Ø¸´£¨14£©

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by cgweb - Shell - 2003-03-17 12:47:18 ÔĶÁ£¨1120£© »Ø¸´£¨1£©

ÏÖÔÚÓиöÎÊÌâÎÒÓÐÒÉÎÊ? ¹¹³É£º ËùÓлúÆ÷¶¼ÊÇunix£¬informix ,C Ò»¸öÖÐÐÄ·þÎñÆ÷£¬ÏÂÃæÓм¸°Ų̀PC£¨Ã¿Ì¨PC¶¼ºÍ·þÎñÆ÷ÏàÁ¬£©.ÿ̨PCͨ¹ý·þÎñÆ÷·¢ËͰüÎĸøÁíһ̨pcͬʱµÈ´ýËüµÄ·µ»Ø£¨·µ»ØÒ²ÊÇͨ¹ý·þÎñÆ÷£©. ͨÐÅ: ÏÖÔÚËùÓÐpcºÍ·þÎñÆ÷¶¼ÊÇ£¨socket)¶ÌÁ¬½Ó,µ±Ò»Ì¨pc·¢ËͰüÎÄʱ·þÎñÆ÷½ÓÊÕµ½ºóÁ¢¿ÌforkÒ»¸ö½ø³Ì²¢·¢Ë͵½Áíһ̨pc . ÎÊÌ⣺ ÈçÉÏËùÊö£¬µ±ÓÐÉϰŲ̀pcͬÊÇÏ໥ͨ¹ý·þÎñÆ÷Ö®¼äͨÐŵϰ£¬·þÎñÆ÷²»ÊÇÒªfrokÉϰٸö½ø³Ì£¬ÕâÑù²»ÊÇ»á...

by yangmas - C/C++ - 2004-08-29 20:12:11 ÔĶÁ£¨2250£© »Ø¸´£¨7£©

ËäÈ»ÎÒ¸Õ½Ó´¥linux£¬µ«ÊÇÎÒ·¢ÏÖËüÈÃÈ˲»µÃ²»×ÅÃÔ£¬ÎÊÒ»¸ö´ÖdzµÄÎÊÌ⣬Çë´ó¼Ò°ï棡 ÏÂÃæÊÇÎÒ×Ô¼ºÊÔÑéµÄÒ»¸öС³ÌÐò¶Î£º main() { int pid, child_id, child_id_two; pid = getpid(); printf("process ID = %d\n", pid); if ((child_id=fork()) != 0) { /* ½¨Á¢µÚÒ»¸ö×Ó½ø³Ì */ pid = getpid(); printf("process ID (parent) = %d\n", pid); printf("parent process complete.\n"); } else if ((child_id_two=fork()) =...

by duoduozhu - C/C++ - 2004-10-06 11:02:38 ÔĶÁ£¨945£© »Ø¸´£¨2£©

ÎÒÏëÖªµÀ£¬1¡¢ÔÚlinux Ï£¬ È«¾Ö±äÁ¿ÊÇ ½ø³Ì¼ä¹²Ïí»¹ÊǶÀÁ¢µÄ£¬ 2¡¢ÎªÊ²Ã´fork´´½¨½ø³Ìºó£¬¸¸×Ó½ø³Ì´ò³öµÄ¾Ö²¿±äÁ¿µØÖ·ÊÇÒ»ÑùµÄÄØ ÎÒÀí½âµÄ£ºfork´´½¨½ø³Ì£¬Êµ¼ÊÉÏÊÇ·ÖÅäÒ»¿éÄڴ棬×Ó½ø³Ì¸´ÖƸ¸½ø³ÌµÄÊý¾Ý£¬ÉÏÏÂÎÄ£¬µÈ£¬Èç¹û ÕâÑù£¬¸¸×Ó½ø³ÌµÄ¾Ö²¿±äÁ¿µØÖ·¿Ï¶¨ÊDz»Ò»ÑùµÄ°¡£¬ÎªÊ²Ã´ÏÂÃæµÄ³ÌÐò ʵÑé½á¹û¸¸×Ó½ø³ÌµÄ¾Ö²¿±äÁ¿µØÖ·ÊÇÒ»ÑùµÄÄØ ³ÌÐò£º #include #include #include #i...

by h_virus - C/C++ - 2009-02-04 13:21:43 ÔĶÁ£¨1630£© »Ø¸´£¨2£©

ÒòΪfork³öÀ´µÄ×Ó½ø³ÌÖ´Ðгɹ¦exit(0)£¬´Ëʱ×Ó½ø³Ì»á²úÉúS I G C H L DÐźţ¬¸ã²»Çå³þ´Ëʱ¸ÃÈçºÎ´¦Àí£¬ÓÐÈË˵Äں˻áºöÂÔ¸ÃÐźţ¬ÓÐÈË˵ҪwaitpidÊո»¹ÓÐÈË˵ҪÎÞ×èÈûµÄÊո·ñÔò»á²úÉú½©ËÀ½ø³Ì ¸½×¢:¸¸½ø³ÌΪһ¸öºóÌ¨ÊØ»¤½ø³Ì£¬Ñ­»·É¨ÃèĿ¼ÏµÄÈÕÖ¾Îļþ£¬Ã¿´¦ÀíÒ»¸öXXXX.log¾ÍforkÒ»¸ö×Ó½ø³Ì½øÐд¦Àí£¬´¦ÀíÍê±Ïexit(),²¢½«¸ÃÈÕÖ¾Îļþ¸ÄÃûΪXXXX.log.done ¸ÃÈçºÎ×öÄØ£¿¿ÒÇëperl¸ßÊÖÃ÷ʾ£¬Ð»Ð»£¡£¡

by overtheair - Perl - 2007-05-23 20:29:19 ÔĶÁ£¨1668£© »Ø¸´£¨4£©

ËäÈ»ÎÒ¸Õ½Ó´¥linux£¬µ«ÊÇÎÒ·¢ÏÖËüÈÃÈ˲»µÃ²»×ÅÃÔ£¬ÎÊÒ»¸ö´ÖdzµÄÎÊÌ⣬Çë´ó¼Ò°ï棡 ÏÂÃæÊÇÎÒ×Ô¼ºÊÔÑéµÄÒ»¸öС³ÌÐò¶Î£º main() { int pid, child_id, child_id_two; pid = getpid(); printf("process ID = %d\n", pid); if((child_id=fork()) != 0) { /* ½¨Á¢µÚÒ»¸ö×Ó½ø³Ì */ pid = getpid(); printf("process ID (parent) = %d\n", pid); printf("parent process complete.\n"); } else i...

by duoduozhu - ÄÚºË/ǶÈë¼¼Êõ - 2004-10-05 20:03:28 ÔĶÁ£¨773£© »Ø¸´£¨1£©

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by Davice - Shell - 2004-02-05 12:09:20 ÔĶÁ£¨1645£© »Ø¸´£¨2£©

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by yangmas - C/C++ - 2003-04-03 10:13:56 ÔĶÁ£¨2030£© »Ø¸´£¨7£©

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by mikenoodle - C/C++ - 2008-02-21 09:19:49 ÔĶÁ£¨5462£© »Ø¸´£¨12£©

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by pdiunix - LinuxÂÛ̳ - 2004-02-09 15:56:43 ÔĶÁ£¨681£© »Ø¸´£¨4£©