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Cache hostname digest at load time

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This brings pure-ruby BSON::ObjectId performance more in line with that
of the cbson extension.
This commit is contained in:
Bernerd Schaefer 2011-06-29 12:31:10 +02:00
parent 4a319f508f
commit 5572663d40
1 changed files with 2 additions and 1 deletions
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3
lib/bson/types/object_id.rb
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@ -32,6 +32,7 @@ module BSON
class ObjectId class ObjectId
@@lock = Mutex.new @@lock = Mutex.new
@@index = 0 @@index = 0
@@hostname_digest = Digest::MD5.digest(Socket.gethostname)[0, 3]
attr_accessor :data attr_accessor :data
@ -185,7 +186,7 @@ module BSON
oid += [t].pack("N") oid += [t].pack("N")
# 3 bytes machine # 3 bytes machine
oid += Digest::MD5.digest(Socket.gethostname)[0, 3] oid += @@hostname_digest
# 2 bytes pid # 2 bytes pid
oid += [Process.pid % 0xFFFF].pack("n") oid += [Process.pid % 0xFFFF].pack("n")