Commits on Aug 2, 2021

1. Fix memory leak in Oj.dump if raise an exception …

   If an exception occurs inside Oj.dump, the heap area has not been released.
   The heap area allocated by ALLOC_N must be released.
   This patch will fix this problem.
   
   ### Test code
   ```ruby
   require 'oj'
   
   data = {
     "foo" => "a" * 1024 * 1024 * 10,
     1 => "Invalid hash key with strict mode"
   }
   
   1000.times do |i|
     begin
       Oj.dump(data, mode: :strict)
     rescue
     end
   
     if i % 100 == 0
       rss = Integer(`ps -o rss= -p #{Process.pid}`) / 1024.0
       puts "#{i}, #{rss}"
     end
   end
   ```
   
   ### Before
   ```
   $ ruby json.rb
   0, 49.4375
   100, 1051.0
   200, 1674.03125
   300, 1773.625
   400, 1822.171875
   500, 1842.078125
   600, 1841.015625
   700, 1815.65625
   800, 1781.53125
   900, 1792.28125
   ```
   
   1.8 GB of memory was used in my enviroment.
   
   ### After
   ```
   $ ruby json.rb
   0, 49.40625
   100, 49.421875
   200, 49.53125
   300, 49.59375
   400, 49.65625
   500, 49.6875
   600, 49.71875
   700, 49.734375
   800, 49.765625
   900, 49.796875
   ```
   
   50 MB of memory was used in my enviroment.

   

   Watson1978 committed Aug 2, 2021
   Copy the full SHA

   0ab66a6 View commit details

   Browse the repository at this point in the history