linux ÊØ»¤½ø³Ì
int Daemon(char* szExecName = NULL)
{
int res = 0;
pid_t pc;
pc = fork();
if(pc < 0)
{
fprintf(stderr,"ERROR_Deamon()_fork(): failed!");
return -1;
}
else if(pc == 0) //sub process
{
}
else if(pc > 0) //parent process
{
fprintf(stderr,"parent process exit!\n");
sleep(2);
exit(0);
}
res = setsid();
if(res == -1)
{
fprintf(stderr,"ERROR_Deamon()_setsid(): errno = %d\n", errno);
return -1;
}
if(pc=fork())
exit(0);//ÊǵÚÒ»×Ó½ø³Ì£¬½áÊøµÚÒ»×Ó½ø³Ì
else if(pc< 0)
exit(1);//forkʧ°Ü£¬Í˳ö
//Êǵڶþ×Ó½ø³Ì£¬¼ÌÐø
//µÚ¶þ×Ó½ø³Ì²»ÔÙÊǻỰ×鳤
// for maybe its path is not current path when run.
char szModulePath[MAX_PATH] = {0};
GetModuleFileName(szExecName, szModulePath, sizeof(szModulePath));
res = chdir(szModulePath);
if(res == -1)
{
fprintf(stderr,"ERROR_Deamon()_chdir(): path = %s, errno = %d\n", szModulePath, errno);
return -1;
}
umask(0);
//for(int i = 0; i < MAXFILE; i++)
// {
//close(i);
//}
return 0;
}Dstlen)
*szTmp = '\0';
return i;
}
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int GetModuleFileName(char* sModuleName, char* sModulePath, int nSize)
{
int ret = -1;
char* p = getenv("_");
if(p != NULL && strstr(p, sModuleName) != NULL)
{
realpath(p, sModulePath);
char* p = strrchr(sModulePath, '/');
p[1] = '\0';
ret = 0;
}
else
{
realpath(sModuleName, sModulePath);
char* p = strrchr(sModuleP/');
p[1] = '\0';
ret = 0;
}
return ret;
}
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