diff options
Diffstat (limited to 'code/snippets/cow_no_writes.rb')
| -rw-r--r-- | code/snippets/cow_no_writes.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/code/snippets/cow_no_writes.rb b/code/snippets/cow_no_writes.rb new file mode 100644 index 0000000..6e93ff7 --- /dev/null +++ b/code/snippets/cow_no_writes.rb @@ -0,0 +1,10 @@ +arr = [1,2,3] + +fork do + # At this point the child process has been initialized. + # Using CoW this process doesn't need to copy the arr variable, + # since it hasn't modified any shared values it can continue reading + # from the same memory location as the parent process. + p arr +end + |