Running the following produces bizarre results (trimmed down from an actual app):
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#!/opt/local/bin/ruby
require 'rubygems'
require_gem 'sqlite3-ruby'
def each_batch(size=1)
until false
batch = []
(1..20).each {|i| batch << "x"}
yield batch
end
end
database = SQLite3::Database.new("/tmp/test.db")
counter = 0
each_batch {|batch|
database.transaction {
counter += batch.length
print "OK\n"
}
}
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For a while it prints "OK", but then eventually:
./test_bad_batch.rb:20: undefined method `length' for 4085314:Fixnum (NoMethodError)
from /opt/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.1.0/lib/sqlite3/database.rb:593:in `transaction'
from ./test_bad_batch.rb:19
from ./test_bad_batch.rb:11:in `each_batch'
from ./test_bad_batch.rb:18
That is the 'batch' is getting yielded as random pointer instead of the array generated inside each_batch!
I've tried narrowing this further (particularly getting rid of SQLite usage), but this is the simplest case I can come up with so far.
I'm running on Mac OS X 10.4.4 with ruby 1.8.4 installed via Darwin Ports (as well as rubygems installed from there and then sqlite3 installed via that copy of gems).
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% /opt/local/bin/ruby -v
ruby 1.8.4 (2005-12-24) [powerpc-darwin8.3.0]
% /opt/local/bin/gem list sqlite3-ruby
*** LOCAL GEMS ***
sqlite3-ruby (1.1.0)
SQLite3/Ruby is a module to allow Ruby scripts to interface with a
SQLite3 database.
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I've tried both the system supplied sqlite (v3.1.3) and the latest version (installed via Darwin Ports), 3.3.3.
Any info would be helpful!
-tim
