[E-Mail] Introduce oneself

Dear Mr. Green,

I learned from the newspaper that your company wants to hire an English interpreter. I'm very interested in this job and I would like the opportunity to be interviewed.
To begin, I would like to introduce myself to you. My name is WaHaHa Liu, and I'm twenty-five years old. I graduated from Foreign Languages Department of National Taiwan University in 2008. I have three years' English teaching experience in a middle school. I am good at English, especially spoken English. In addition, I can speak a little Japanese and can talk with foreigners in Japanese. Generally speaking, I believe I am qualified for this job posting.
Enclosed herewith are a copy of my diploma and my resume for your reference.
Your prompt reply would be greatly appreciated.

Sincerely yours,
WaHaHa Liu

[Linux] DAAP

Something like iTunes.
http://www.omninerd.com/articles/How_to_Build_an_Open_Source_Linux_iTunes_Media_Server_for_Mac_Clients
http://www.go2linux.org/linux/2011/07/share-your-music-library-using-linux-server-daap-and-itunes-1109.html
http://en.wikipedia.org/wiki/Digital_Audio_Access_Protocol
http://www.synology.at/us/products/features/itunes.php
http://seagate.custkb.com/seagate/crm/selfservice/search.jsp?DocId=210999&NewLang=en
http://www.mobile01.com/topicdetail.php?f=300&t=147903
http://krook.net/archives/169
http://www.opendaap.org/

[Linux] Proftpd

http://www.proftpd.org/docs/howto/Scoreboard.html
http://doc.ctrlaltdel.ch/serveur/proftpd/reference.html

[Linux] USB modem switch

http://www.draisberghof.de/usb_modeswitch/

[Linux] PPP

http://www.faqs.org/docs/Linux-HOWTO/PPP-HOWTO.html#AEN1219
How to Setup a Linux Firewall with PPPoE/NAT/iptables
http://axion.physics.ubc.ca/ppp-linux.html#PPPOptions
http://pptpclient.sourceforge.net/howto-diagnosis.phtml
http://www.yolinux.com/TUTORIALS/LinuxTutorialPPP.html
http://www.linux.org.tw/CLDP/OLD/PPP-HOWTO.html

[E-Mail] Seeking a Job

Dear Sir,

I'm very excited and delighted over the good news that you are recruiting an administrative assistant. From the enclosed resume, you can see that I once worked in a famous multinational corporation for three years. I am very skilled at dealing with routine office work, and my major in college was office automation systems. So it should be clear that I am qualified for the job.
With respect to salary, my requirement is four thousand dollars one month. I assure you that if appointed, I will do my best to meet or exceed your expectations.
I hope I may be granted an interview, so I can fully explain my qualifications.
Looking forward to hearing from you soon.

Sincerely yours,
Lulala Yea

[E-Mail] Hotel Reservations

Dear Sir or Madam,

Please reserve a single room with a shower and air conditioning from Jan 1st to Jan 5th, under the name of Jack Hsu.
I'd like you to provide a room on the seventh floor, overlooking the whole city, if possible. I am arriving on the afternoon of Jan 1st and leaving on the morning of the Jan 5th.
An early confirmation for this reservation would be much appreciated.

Sincerely yours,
Jack Hsu

[E-Mail] Train Ticket Reservations

Dear Sir or Madam,

I'd like to book a hard seat for the T123 train from A to B on January 21st.
I hope the tickets for T123 haven't been all booked up on that day, but if the tickets have been sold out, please inform me as soon as possible.

I appreciate your early confirmation.
Sincerely yours,
Jack

[E-Mail] Airline Ticket Reservations

Dear Sir or Madam,

I am going to fly from A to B on the earliest flight. Could I book one economy class seat on a flight leaving A on May 12th?
The Agricultural Bank of China has been instructed to pay the fare and booking fee, and I would ask you to submit your invoice directly to them?

I will appreciate your early confirmation.
Sincerely yours,
Brain

[Unix Programming] Zombie

Zombie: Child process terminates without parent's waiting.
As a result, all you have to do is to wait the child process while terminating.


void waitchild() {
  signal( SIGCHLD, waitchild); // re-enable the signal to fit all systems
  while( wait(NULL) <= 0 )
    /*NOTHING*/;
}


int
main (int argc, char **argv)
{
  signal( SIGCHLD, waitchild);
  if (fork() == 0) {
    // child process
  } else {
    // parent
  }
}

Refer:
http://home.educities.edu.tw/shirock/comp/Anti_zombie_process.htm
http://starryalley.twbbs.org/blog/index.php?/archives/683-linux-zombie-process.html

[Google MAP] Address to Google Map

Address -> longitude and latitude -> KML -> Google Map

Address to longitude and latitude:
http://gmaps-samples.googlecode.com/svn/trunk/geocoder/singlegeocode.html

KML:

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
<Document>

<name>Vincent Cheng</name>
<description><![CDATA[test]]></description>
<Style id="style">
<IconStyle>
<Icon>
<href>http://maps.gstatic.com/mapfiles/ms2/micons/blue-dot.png</href>
</Icon>
</IconStyle>
</Style>

<Placemark>
<name>Test1</name>
<description><![CDATA[]]></description>
<styleUrl>#style</styleUrl>
<Point>
<coordinates>120.913872,24.639008,0.000000</coordinates>
</Point>
</Placemark>

<Placemark>
<name>Test2</name>
<description><![CDATA[]]></description>
<styleUrl>#style</styleUrl>
<Point>
<coordinates>120.916405,24.642361,0.000000</coordinates>
</Point>
</Placemark>

</Document>
</kml>


[C] call by value/reference/address

Call by Value, Call by Address(Pointer), C++ includes Call by Reference
http://csie-tw.blogspot.com/2010/03/call-by-valuecall-by-pointercall-by.html

Call by Value:
int main()
{
  int x=1;
  printf("x=%d\n", x);
  foo(x);
  printf("x=%d\n", x);
}
void foo(int x)
{
  x++;
}

result:
1
1


Call by Address/Pointer:
int main()
{
  int x=1;
  printf("x=%d\n", x);
  foo(&x);
  printf("x=%d\n", x);
}
void foo(int *x)
{
  (*x)++;
}

result:
1
2


Call by Reference:(C++)
int main()
{
  int x=1;
  printf("x=%d\n", x);
  foo(x);
  printf("x=%d\n", x);
}
void foo(int &x)
{
  x++;
}

result:
1
2

[C] pointer to function

#include <stdio.h>
#include <stdlib.h>

void func(int);

main(){
      void (*fp)(int);

      fp = func;

      (*fp)(1);
      fp(2);

      exit(EXIT_SUCCESS);
}

void
func(int arg){
      printf("%d\n", arg);
}