PL/Parrot San Francisco Perl Mongers 2010/05/25

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David Fetter

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Parrot
• A Virtual Machine for Dynamic Languages

Parrot
• A Virtual Machine for Dynamic Languages
• Register-based

Parrot
• A Virtual Machine for Dynamic Languages
• Register-based
• Really, really #&^%#@%^ cool

Parrot
• A Virtual Machine for Dynamic Languages
• Register-based
• Really, really #&^%#@%^ cool
• Pluggable!

Parrot
• A Virtual Machine for Dynamic Languages
• Register-based
• Really, really #&^%#@%^ cool
• Pluggable!
• Interoperable!

Parrot
• A Virtual Machine for Dynamic Languages
• Register-based
• Really, really #&^%#@%^ cool
• Pluggable!
• Interoperable!
• Dynamic!

PostgreSQL

• If you gotta ask,
• you ain't never gonna know.

PostgreSQL

• If you gotta ask,
• you ain't never gonna know.
• (apologies to Louis Armstrong)

Why?

• Writing, Debugging and Maintaing PLs is a

Why?

• Writing, Debugging and Maintaing PLs is a
• Pain

Why?

• Writing, Debugging and Maintaing PLs is a
• Pain
• In

Why?

• Writing, Debugging and Maintaing PLs is a
• Pain
• In
• The

Why?

• Writing, Debugging and Maintaing PLs is a
• Pain
• In
• The
• As^Wneck

Why?

• Write in PL/Perl6
• Call from PL/Python

Parrot Embed In Flux

• Parrot trunk!
• PostgreSQL master!

• HLL API not implemented yet, so:

• PL/PIR (mostly ok)

• HLL API not implemented yet, so:

• PL/PIR (mostly ok)

• PL/PIRU (rough edges)

• HLL API not implemented yet, so:

• PL/PIR (mostly ok)

• PL/PIRU (rough edges)

• OBTW

• HLL API not implemented yet, so:

• PL/PIR (mostly ok)

• PL/PIRU (rough edges)

• OBTW

• PL/Speciﬁcation

PostgreSQL Data Types

• We support basic data types!

PostgreSQL Data Types

• We support basic data types!
• Working on time types.

PostgreSQL Data Types

• We support basic data types!
• Working on time types.
• Parrot needs bytea/time object...

What It Looks Like
CREATE FUNCTION test_float_add(float)
RETURNS float
LANGUAGE plparrot
AS $$
.param num x
x += 5
.return(x)
$$;

What It Looks Like
CREATE FUNCTION text_concat(text)
RETURNS text
LANGUAGE plparrot
AS $$
$S1 = 'PL/'
$S2 = 'Parrot'
$S3 = $S1 . $S2
.return($S3)
$$;

Access Control

•HAVE:
• Filesystem access: DENIED!

Access Control

• WANT
• Conﬁgurable Controls

Access Control

• WANT
• Conﬁgurable Controls
• Network Access Control

Access Control

• WANT
• Conﬁgurable Controls
• Network Access Control
• TESTS

What We Have Now
• An actual PL, PIRU
• TAP tests via pgTap

What We Have Now
• An actual PL, PIRU
• TAP tests via pgTap
• A Git Repo

What We Have Now
• An actual PL, PIRU
• TAP tests via pgTap
• A Git Repo
• An Issue Tracker

What We Have Now
• An actual PL, PIRU
• TAP tests via pgTap
• A Git Repo
• An Issue Tracker
• #plparrot on Freenode

What We Have Now
• An actual PL, PIRU
• TAP tests via pgTap
• A Git Repo
• An Issue Tracker
• #plparrot on Freenode
• Enthusiasm!

What We'll Do Soon

• BETTAR Argument Passing

What We'll Do Soon

• BETTAR Argument Passing
• MOAR Data Type Marshalling

What We'll Do Soon

• BETTAR Argument Passing
• MOAR Data Type Marshalling
• TESTS. LOTS OF TESTS

What We Want

• Sandboxing
• HLLs
• MOAR DEVELOPERZ

What We Want

• Sandboxing
• HLLs
• MOAR DEVELOPERZ
• Users!

Next:

http://groups.google.com/group/plparrot
http://github.com/leto/plparrot
http://pl.parrot.org/

Thanks!
San Francisco Perl Mongers
May 25, 2010

Copyright © 2010
David Fetter david.fetter@pgexperts.com
All Rights Reserved

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PL/Parrot San Francisco Perl Mongers 2010/05/25

3. Um, WTF?!?

4. People To Blame

5. Parrot

6. Parrot • A Virtual Machine for Dynamic Languages

7. Parrot • A Virtual Machine for Dynamic Languages • Register-based

8. Parrot • A Virtual Machine for Dynamic Languages • Register-based • Really, really #&^%#@%^ cool

9. Parrot • A Virtual Machine for Dynamic Languages • Register-based • Really, really #&^%#@%^ cool • Pluggable!

10. Parrot • A Virtual Machine for Dynamic Languages • Register-based • Really, really #&^%#@%^ cool • Pluggable! • Interoperable!

11. Parrot • A Virtual Machine for Dynamic Languages • Register-based • Really, really #&^%#@%^ cool • Pluggable! • Interoperable! • Dynamic!

12. PostgreSQL

13. PostgreSQL • If you gotta ask,

14. PostgreSQL • If you gotta ask, • you ain't never gonna know.

15. PostgreSQL • If you gotta ask, • you ain't never gonna know. • (apologies to Louis Armstrong)

16. Why?

17. Why? • Writing, Debugging and Maintaing PLs is a

18. Why? • Writing, Debugging and Maintaing PLs is a • Pain

19. Why? • Writing, Debugging and Maintaing PLs is a • Pain • In

20. Why? • Writing, Debugging and Maintaing PLs is a • Pain • In • The

21. Why? • Writing, Debugging and Maintaing PLs is a • Pain • In • The • As^Wneck

22. Why?

23. Why? • PL

24. Why? • PL • Toolkit

25. Why?

26. Why? • Don't

27. Why? • Don't • Repeat

28. Why? • Don't • Repeat • Yourself!

29. Why? • Write in PL/Perl6 • Call from PL/Python

30. What • First things ﬁrst: • PL/PIR

31.

32. <EMBED>

33. Parrot Embed In Flux

34. Parrot Embed In Flux • Parrot trunk!

35. Parrot Embed In Flux • Parrot trunk! • PostgreSQL master!

36. </EMBED>

37. <HLL>

38.

39. • HLL API not implemented yet, so:

40. • HLL API not implemented yet, so: • PL/PIR (mostly ok)

41. • HLL API not implemented yet, so: • PL/PIR (mostly ok) • PL/PIRU (rough edges)

42. • HLL API not implemented yet, so: • PL/PIR (mostly ok) • PL/PIRU (rough edges) • OBTW

43. • HLL API not implemented yet, so: • PL/PIR (mostly ok) • PL/PIRU (rough edges) • OBTW • PL/Speciﬁcation

44. </HLL>

45. <MARSHAL>

46. PostgreSQL Data Types

47. PostgreSQL Data Types • We support basic data types!

48. PostgreSQL Data Types • We support basic data types! • Working on time types.

49. PostgreSQL Data Types • We support basic data types! • Working on time types. • Parrot needs bytea/time object...

50. </MARSHAL>

51. What It Looks Like CREATE FUNCTION test_float_add(float) RETURNS float LANGUAGE plparrot AS $$ .param num x x += 5 .return(x) $$;

52. What It Looks Like CREATE FUNCTION text_concat(text) RETURNS text LANGUAGE plparrot AS $$ $S1 = 'PL/' $S2 = 'Parrot' $S3 = $S1 . $S2 .return($S3) $$;

53. Access Control

54. Access Control • HAVE:

55. Access Control •HAVE: • Filesystem access: DENIED!

56. Access Control

57. Access Control • WANT

58. Access Control • WANT • Conﬁgurable Controls

59. Access Control • WANT • Conﬁgurable Controls • Network Access Control

60. Access Control • WANT • Conﬁgurable Controls • Network Access Control • TESTS

61. What We Have Now

62. What We Have Now • An actual PL, PIRU

63. What We Have Now • An actual PL, PIRU • TAP tests via pgTap

64. What We Have Now • An actual PL, PIRU • TAP tests via pgTap • A Git Repo

65. What We Have Now • An actual PL, PIRU • TAP tests via pgTap • A Git Repo • An Issue Tracker

66. What We Have Now • An actual PL, PIRU • TAP tests via pgTap • A Git Repo • An Issue Tracker • #plparrot on Freenode

67. What We Have Now • An actual PL, PIRU • TAP tests via pgTap • A Git Repo • An Issue Tracker • #plparrot on Freenode • Enthusiasm!

68. What We'll Do Soon

69. What We'll Do Soon • BETTAR Argument Passing

70. What We'll Do Soon • BETTAR Argument Passing • MOAR Data Type Marshalling

71. What We'll Do Soon • BETTAR Argument Passing • MOAR Data Type Marshalling • TESTS. LOTS OF TESTS

72. What We Want

73. What We Want • Sandboxing

74. What We Want • Sandboxing • HLLs

75. What We Want • Sandboxing • HLLs • MOAR DEVELOPERZ

76. What We Want • Sandboxing • HLLs • MOAR DEVELOPERZ • Users!

77. Next: http://groups.google.com/group/plparrot http://github.com/leto/plparrot http://pl.parrot.org/

Editor's Notes

We'd like to thank EnterpriseDB for dulling your wits this morning
Thanks, Sarah! :)
Normally, one doesn't think of bleeding-edge features on an RDBMS ...except that This. Is. Postgres! we'll figure out where we're dining tonight
and Daniel Arbelo Arrocha, whose picture we were too lazy to get in time for this talk
This is where we're going. PL Neutrality. Original Parrot Project
Parrot Intermediate Representation (like an assembly language, but way cooler)
Parrot trunk (yep. it has a trunk) PDD10
Parrot trunk (yep. it has a trunk) PDD10
Say what they are, name a few
PL/Squaak first. PL/LOLCODE may be next (outside the Parrot tree). HAAAAAAALLLLLLLLLLLLLLP!
PL/Squaak first. PL/LOLCODE may be next (outside the Parrot tree). HAAAAAAALLLLLLLLLLLLLLP!
PL/Squaak first. PL/LOLCODE may be next (outside the Parrot tree). HAAAAAAALLLLLLLLLLLLLLP!
PL/Squaak first. PL/LOLCODE may be next (outside the Parrot tree). HAAAAAAALLLLLLLLLLLLLLP!
PL/Squaak first. PL/LOLCODE may be next (outside the Parrot tree). HAAAAAAALLLLLLLLLLLLLLP!
Beg for help Current plan is to fall through to bytea.
Beg for help Current plan is to fall through to bytea.
Beg for help Current plan is to fall through to bytea.
UNTRUSTED for now. Need more trust. PL/ParrotU will be a synonym for PL/PIRU
Bet you didn't think assembler code could manipulate strings this way :)
PG needs a PL access control document
PG needs a PL access control document
PG needs a PL access control document
PG needs a PL access control document
PG needs a PL access control document
PG needs a PL access control document
those would include performance
those would include performance
those would include performance
We want opcode removal just like PL/Perl did. Have you upgraded yet? Naughty, naughty
We want opcode removal just like PL/Perl did. Have you upgraded yet? Naughty, naughty
We want opcode removal just like PL/Perl did. Have you upgraded yet? Naughty, naughty
We want opcode removal just like PL/Perl did. Have you upgraded yet? Naughty, naughty

PL/Parrot San Francisco Perl Mongers 2010/05/25

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Editor's Notes