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Detail: [#688] Support for Bigarray as well as string

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[#688] Support for Bigarray as well as string

Date:
2010-07-22 13:24		 Priority:
3
State:
Open
Submitted by:
Goswin Brederlow, von (goswin) 		Assigned to:
Nobody (None)
Component:
None		 Operating System:
None
Product:
None		  
Summary:
Support for Bigarray as well as string

Detailed description
The Bigarray module has several advantages over strings for use a buffer. The data in a bigarray is allocated outside the GC heap and will not be moved by the GC. This allows the data to be accessed within caml_enter/leave_blocking_section() without the need to copy it first. This allows a zero copy read()/write() or use of libaio for IO.

The same applies to e.g. computing a sha1 digest. It would be nice if one could use a Bigarray in place of the string. This would allow the sha1 function to run within caml_enter/leave_blocking_section() and in parallel with other threads.

For an example on how to do it see my Patch for the Digest module. You can probably copy the code straight from there with minimal adjusting: http://caml.inria.fr/mantis/view.php?id=5005

MfG
Goswin

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Attached Files:

Attachments:
0009-digest-rewrite.patch

Changes:

Field Old Value Date By
File Added72: 0009-digest-rewrite.patch2010-07-22 13:42gildor-admin