this
- p.do() �� p�� 행��. �� 함�� var f = p.do; f(); �� f�� 행�� 행�� .
�� 함�� . �� 하��.
func.apply(ec, arguments) �� func.call(ec, arg1, arg2, ... )�� func�� 행��(this)�� 할�� .

3.3. new�� ¶

new Person();
- 1. create instance
- 2. instance.proto = Person.prototype;
  - �� proto�� 토�� 할��.(�� .)
- 3. ��행�� instance�� 한 �� 호��한��.

3.4. prototype ¶

3.4.1. Class vs Prototype ¶

Class : 함�� class�� .
prototype : 함��
- �� 함�� 한��.
- �� prototype�� .
  
  class <-----------------> prototype
  
  VTable <-----------------> prototype chain (proto)

3.4.2. dispatch ¶

�� 호��해�� 하�� 함��
javascript�� 행�� 토�� 해 ��행한��.
- instance�� proto�� proto�� ...
�� ..

for (var _proto = a; _proto; _proto = _proto.__proto__)
{
    if (("f" in _proto) && typeof _proto["f"] === "function")
        _proto["f"].apply(a, arguments]);
}

��크��트�� 함�� 한 dispatch�� .

3.4.3. �� ¶

�� 해�� prototype chain�� 하�� .

function People(){};
function Man(){};
Man.prototype = new People();
m = new Man();

3.5. same origin policy ¶

�� 크��트�� XSS�� (?)��해 ��한 �� javascript�� 할�� .
iframe�� XHR�� .
document.domain �� 함�� 한 �� .
- wiki.zeropage.org �� www.zeropage.org �� 한 �� 하�� 해 document.domain�� zeropage.org�� 할�� .
- ��, �� 하�� . �� 허�� .

3.5.1. Same Origin Policy�� 하�� 한 �� ¶

proxy
- �� 하�� 해 �� 페�� proxy�� 한��.
- ��하�� (�� 트��크 �� )
- �� 화�� .
Image
- �� same origin policy�� 할�� .
Ifreame
- �� 크��트 �� 할�� 하��.
- 플�� 할�� 클��트�� 하�� 크��트 ��한 �� 해��하�� .
Script tag
- Same origin policy�� 크��트�� 행�� 한��.
- script tag�� 행 하�� 한 �� .
- �� callback함�� 해��한��.
- �� JSON�� .

__callback({ "json" : "data"});

�� 형�� 클��트(��한 ��)�� _callback함�� 해�� .
�� JSON�� 함�� 형�� JSON with Padding, JSONP�� .

4. server ¶

4.1. �� ¶

Apache http server (httpd)
- �� .
IIS
- windows �� GUI�� 하��.
lighttpd
- event driven ��
nginx
- evnet driven �� nodejs �� 해��.

4.2. �� ¶

static 한 파�� .
확�� 파��해�� 파�� 헤�� MIME TYPE�� 헤�� .
static 한 파�� .

4.3. �� ¶

�� 하�� .

4.3.1. Unix File ¶

Unix�� File��함�� 한��.
- �� 파�� (Process - Disk)
- �� 통�� Pipe
- �� 하�� 통��하�� Socket
- �� 통��하��
Unix�� C�� 하�� 한 ��화�� 통해 �� File�� .
�� .

FILE f = new Pipe();

4.3.2. CGI ¶

Common Gateway Interface
Unix�� Pipe�� File�� static한 file �� Pipe�� 한�� ?
�� 행해�� 행 �� .
�� CGI�� .
- standard Input�� request body�� .
- standard Output�� response body�� .
- �� 환�� .
표�� RFC3875�� IETF�� 한��.
�� 행�� 하�� 하�� disk�� .

4.4. �� ¶

�� .
�� 행�� 한�� .
- ISAPI(ISS) : DLL��)
- mod (apache : so��)
��
process per request �� fork �� 히 ��하�� .
하�� 크�� .

4.5. �� ¶

fork��
�� Thread

4.5.1. MPM ¶

fork하�� module�� 택할�� .
fork �� Thread�� fork�� .
�� 하�� pre-fork��
mpm-worker �� .
- 하�� 하�� 하�� 하��
- thread per request ��
- �� Thread��해�� 한��.
��히 CPU �� .
Servlet�� .
context switch�� 효�� 평�� .

4.5.2. MPM + Queue ¶

큐�� context switch�� 했��.
connection�� 큐�� worker�� 하��
�� 하�� 하�� 히 context switch�� .

4.6. �� ¶

한 �� (=job)�� 히 ��펴��...File I/O DB�� 하�� .
�� I/O�� 합��.
�� .
�� 해��하�� Event-driven�� .
�� 해�� 하�� .
�� fork�� .

4.6.1. fast CGI ¶

�� demon�� !
�� CGI�� 행�� 했��!
fast CGI�� 행 �� deamon(service)�� 행��.
한�� 행�� 하�� 크�� .
통�� socket
- �� 확��히 ��.
- �� CGI�� 해�� .
- �� 편해��. (CGI�� .)
- �� CGI�� .
- �� 히 �� 하�� !
��하�� .

event-driven �� event-driven�� WAS��
nginx + nodejs
��한��한��.

class	<----------------->	prototype
VTable	<----------------->	prototype chain (proto)

Zero Page_200_OK/note

Contents

1. HTTP ¶

1.1. HTTP Method ¶

1.1.1. POST ¶

1.1.2. PUT ¶

2. JavaScript���? ¶

2.1. Prototype ������ ������ ¶

2.2. 함���형 ������ ¶

3. Javascript ������ ¶

3.1. 클������ ¶

3.2. Excuteion Context ¶

3.3. new��� ������ ¶

3.4. prototype ¶

3.4.1. Class vs Prototype ¶

3.4.2. dispatch ¶

3.4.3. ������ ¶

3.5. same origin policy ¶

3.5.1. Same Origin Policy��� ������하��� ���한 ������ ¶

4. server ¶

4.1. ������ ¶

4.2. ��������� ��������� ¶

4.3. ������ ������ ��������� ¶

4.3.1. Unix File ¶

4.3.2. CGI ¶

4.4. ��� ��������� ��� ������ ¶

4.5. ������ ��������� ��������� ¶

4.5.1. MPM ¶

4.5.2. MPM + Queue ¶

4.6. ������ ������������ ��������� ��������� ¶

4.6.1. fast CGI ¶

2. JavaScript��? ¶

2.1. Prototype �� ¶

2.2. 함��형 �� ¶

3. Javascript �� ¶

3.1. 클�� ¶