Erlang and OTP in Action

431 Pages·2010·5.21 MB·English

by  Martin Logan

Erlang

OTP
AND
IN ACTION
Martin Logan
Eric Merritt
Richard Carlsson
FOREWORD BY ULF WIGER
M A N N I N G
Erlang and OTP in Action

Erlang and
OTP in Action
MARTIN LOGAN
ERIC MERRITT
RICHARD CARLSSON
MANNING
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1 2 3 4 5 6 7 8 9 10 – MAL – 16 15 14 13 12 11 10
To all the great Erlangers,
many of whom we call friends, that we have met along the way.
May this book put an end to the long hard slog through
internet docs that we had to endure to learn OTP.

brief contents
PART 1 GETTING PAST PURE ERLANG: THE OTP BASICS . ...........1
1 ■ The Erlang/OTP platform 3
2 ■ Erlang language essentials 22
3 ■ Writing a TCP-based RPC service 94
4 ■ OTP applications and supervision 119
5 ■ Using the main graphical introspection tools 132
PART 2 BUILDING A PRODUCTION SYSTEM .............................147
6 ■ Implementing a caching system 149
7 ■ Logging and event handling
the Erlang/OTP way 170
8 ■ Introducing distributed Erlang/OTP 190
9 ■ Adding distribution to the cache with Mnesia 213
10 ■ Packaging, services, and deployment 242
vii
viii BRIEF CONTENTS
PART 3 INTEGRATING AND REFINING......................................259
11 ■ Adding an HTTP interface to the cache 261
12 ■ Integrating with foreign code using
ports and NIFs 291
13 ■ Communication between Erlang and Java
via Jinterface 332
14 ■ Optimization and performance 357
15 ■ Installing Erlang 379
16 ■ Lists and referential transparency 381
contents
foreword xvii
preface xx
acknowledgments xxii
about this book xxiii
introduction xxviii
PART I GETTING PAST PURE ERLANG:
THE OTP BASICS . .............................................1
1 The Erlang/OTP platform 3
1.1 Concurrent programming with processes 5
Understanding concurrency 5 ■ Erlang’s process
model 6 ■ Four process communication paradigms 8
Programming with processes in Erlang 11
1.2 Erlang’s fault tolerance infrastructure 13
How process links work 13 ■ Supervision and
trapping of exit signals 14 ■ Layering processes for
fault tolerance 15
1.3 Distributed Erlang 16
ix