Chapter16

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The document discusses the Open Telecom Platform (OTP) framework in Erlang. It introduces OTP and describes behaviors and callbacks. It then provides examples of basic servers, transaction servers, hot code swapping servers, and using the gen_server module to build a bank server with callbacks for operations like creating new accounts, deposits and withdrawals.

Technology Business

• OPT
• Server – Basic
• Server – Transaction
• Server – Hot Code Swapping
• Server – More Fun
• gen_server
• gen_server Template
• my_bank.erl

OTP

• Open Telecom Platform : Application Framework

• Behavior – 비기능적인 부분
ex) 무정지 기능 , Hot Code Swapping … )

• Callback – 비즈니스 로직

Server – Basic

• Client Interface
• Callback

Server – Transaction

• 서버 변경
• 콜백은 그대로 유지

gen_server
http://www.erlang.org/doc/man/gen_server.html

1.Callback Module Name
my_bank
2.Write Interface Routines
start(), stop(),
new_account(Who),
deposit(Who, Amount),
withdraw(Who, Amount)
3.Write Callback Routines
init/1,
handle_call/3, handle_cast/2, handle_info/2,
terminate/2, code_change/3

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Chapter16

1. 16. OTP Introduction Erlang TFT

2. • OPT • Server – Basic • Server – Transaction • Server – Hot Code Swapping • Server – More Fun • gen_server • gen_server Template • my_bank.erl

3. OTP • Open Telecom Platform : Application Framework • Behavior – 비기능적인 부분 ex) 무정지 기능 , Hot Code Swapping … ) • Callback – 비즈니스 로직

4. Server – Basic • Client Interface • Callback

5. Server – Transaction • 서버 변경 • 콜백은 그대로 유지

6. Server – Hot Code Swapping

7. Server – More Fun

8. gen_server http://www.erlang.org/doc/man/gen_server.html 1.Callback Module Name my_bank 2.Write Interface Routines start(), stop(), new_account(Who), deposit(Who, Amount), withdraw(Who, Amount) 3.Write Callback Routines init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3

9. gen_server Template

10. my_bank.erl

Chapter16

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