[postgis-devel] [PostGIS] #1802: Ensure interruptability of long-running calls

[PostGIS]

#1802: Ensure interruptability of long-running calls
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 Reporter:  strk     |       Owner:  strk         
     Type:  task     |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.1
Component:  postgis  |     Version:  2.0.x        
 Keywords:           |  
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Comment(by strk):

 The attached interrupt.sql script may be used for testing purposes.
 Run with: $ time psql -f interrupt.sql
 It is expected that the query ends with something like:
 {{{
 ERROR:  GEOSBuffer: InterruptedException: Interrupted!
 }}}

 and it takes no much longer than 1 second to finish.

 I tested with with PostgreSQL 8.4.10 and 9.1.2, GEOS-3.4.0dev r3663,
 postgis 2.1.0svn r9851 and postgis 2.0.1svn r9849 with the macro defined.

 postgis 2.0.1svn r9849 without the macro defined completes (interrupting)
 in about 43 seconds instead.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1802#comment:22>
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