linux³ÌÐò´ò²»¿ªÍ·Îļþ
#include <fcnt1.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc,char *argv[])
{
int fd_open,fd_open_create,fd_create;
if((fd_open=open("/home/wang/test/hello.c",O_RDONLY))==-1)
{
perror("open");
exit(EXIT_FAILURE);
}
printf("the file's descriptor is:%d\n",fd_open);
if((fd_open_create==open("./tmp1",O_CREAT|O_EXCL,0644))==-1)
{
perrno("open");
exit(EXIT_FAILURE);
}
printf("the tmp1 file descriptor is:%d\n",fd_open_create);
if((fd_create=creat("./tem2",0644))==-1)
{
perrno("create");
exit(EXIT_FAILURE);
}
printf("the tmp2 file descriptor is:%d\n",fd_create);
close(fd_open);
close(fd_create);
close(fd_open_create);
return 0;
}
±àÒë½á¹û
wangjun@my-desktop:~/test$ gcc -ggdb3 -o open_example open_example.c
open_example.c:1:19: ´íÎó£º fcnt1.h£ºÃ»ÓиÃÎļþ»òĿ¼
open_example.c: ÔÚº¯Êý¡®main¡¯ÖÐ:
open_example.c:8:
Ïà¹ØÎÊ´ð£º
Ä¿±ê£ºµ±ÍøÂçÖÐÓÐÊý¾Ýµ½´ï»òÕß³¬Ê±£¬³ÌÐò½øÈëÏÂÒ»´ÎÑ»·¡£
ÎÊÌ⣺select()º¯Êý²»Æð×÷Ó㬳ÌÐò²»»áÔÚselectµÄµØ·½×èÈûÒ»Ã룬²¢ÇÒµ±ÍøÂçÉÏÓÐÊý¾ÝµÄʱºò£¬selectµÄ·µ»ØÖµÈÔȻСÓÚ0
#include <s ......
¸ç¸ç½ã½ãÃÇ£¬£¬£¬ÎÒÔÚVISTA ÏÂÓÃVMware °²×°ºìÆì6.5ʱ£¬°²×°µ½Ó²ÅÌ·ÖÇøµÄʱºò£¬×ÜÊdzöÏÖÒ»¸ö¶Ô»°¿ò¡£ÉÏÃæÐ´×Å£º¡°³öÏÖ´íÎó---δÕÒµ½ÒªÔÚÆäÖд´½¨ÐÂÎļþϵͳµÄÓÐЧÉ豸¡£Çë¼ì²éÄãµÄÓ²¼þÒÔÕÒµ½ÎÊÌâµÄÆðÒò¡£¡±ÇëÎÊÔõô½ ......
´ó¼ÒºÃ£¬±¾ÈËĿǰ¸Õ¸Õ½Ó´¥Linux¡£ÏÖÔÚ¹«Ë¾µÄÏîÄ¿ÐèÒªËõ¼õLinuxµÄKernelºÍAPP²¿·ÖµÄCode Size¡£Ä¿Ç°ÎÒÃÇʹÓõÄÊÇLinux2.6.22.15°æ±¾£¬Ó¦ÓÃÓÚADSL Modem£¨¼ÒÍ¥Íø¹Ø£©¡£
1.ÎÒÃDzúÆ·Ó¦ÓÃÊÇADSL Gateway£¬Kernel²¿ ......
дÁ˸ö¼òµ¥µÄ兩Êý±È½ÏµÄ³ÌÐò£¬¿ÉÊÇgcc¾ÍÊDZàÒë²»¹ý£¬Ìáʾa.c:13: ´íÎó£º
expected ¡®=¡¯, ¡®,¡¯, ¡®;¡¯, ¡®asm¡¯ or ¡®__attribute__¡¯ before ¡®main¡¯µÄ´íÎ󣬿´ÁËÓÖ¿´¾õµÃûÓÐÓï·¨´íÎó£¬ ......