Add option to limit memory available to external commands

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/alaveteli_external_command.rb b/lib/alaveteli_external_command.rb
index 24b4b1aa8..5e9a7ee83 100644
--- a/lib/alaveteli_external_command.rb
+++ b/lib/alaveteli_external_command.rb
@@ -8,6 +8,7 @@ module AlaveteliExternalCommand
         # :stdin_string - stdin string to pass to the process
         # :binary_output - boolean flag for treating the output as binary or text (only significant
         #                  ruby 1.9 and above)
+        # :memory_limit - maximum amount of memory (in bytes) available to the process
         def run(program_name, *args)
             # Run an external program, and return its output.
             # Standard error is suppressed unless the program
@@ -38,6 +39,9 @@ module AlaveteliExternalCommand
             if opts.has_key? :binary_output
                 xc.binary_mode = opts[:binary_output]
             end
+            if opts.has_key? :memory_limit
+                xc.memory_limit = opts[:memory_limit]
+            end
             xc.run(opts[:stdin_string] || "", opts[:env] || {})
 
             if xc.status != 0