diff options
-rw-r--r-- | lib/logger.rb | 6 | ||||
-rw-r--r-- | lib/readbytes.rb | 5 | ||||
-rw-r--r-- | lib/weakref.rb | 18 |
3 files changed, 22 insertions, 7 deletions
diff --git a/lib/logger.rb b/lib/logger.rb index 9a2b51d6db..bf5c837edd 100644 --- a/lib/logger.rb +++ b/lib/logger.rb @@ -17,6 +17,9 @@ # +require 'monitor' + + # # == Description # @@ -174,9 +177,6 @@ # -require 'monitor' - - class Logger VERSION = "1.2.6" /: (\S+),v (\S+)/ =~ %q$Id$ diff --git a/lib/readbytes.rb b/lib/readbytes.rb index d6a3b10afe..08b92da73c 100644 --- a/lib/readbytes.rb +++ b/lib/readbytes.rb @@ -12,6 +12,11 @@ class TruncatedDataError<IOError end class IO + # reads exactly n bytes from the IO stream. + # If the data read is nil, raises EOFError. + # If the data read is too short, raises TruncatedDataError. + # The method TruncatedDataError#data may be used to obtain + # the truncated message. def readbytes(n) str = read(n) if str == nil diff --git a/lib/weakref.rb b/lib/weakref.rb index a398ebf1fe..bc1b916619 100644 --- a/lib/weakref.rb +++ b/lib/weakref.rb @@ -1,4 +1,11 @@ -# Weak Reference class that does not bother GCing. + +require "delegate" + +# Weak Reference class that does not bother GCing. This allows the +# referenced object to be garbage collected as if nothing else is +# referring to it. Because Weakref inherits from Delegator it passes +# method calls to the object from which it was constructed, so it +# is of the same Duck Type. # # Usage: # foo = Object.new @@ -8,11 +15,9 @@ # p foo.to_s # should be same class # ObjectSpace.garbage_collect # p foo.to_s # should raise exception (recycled) - -require "delegate" - class WeakRef<Delegator + # RefError is raised if an object cannot be referenced by a WeakRef. class RefError<StandardError end @@ -41,6 +46,7 @@ class WeakRef<Delegator end } + # Create a new WeakRef from +orig+. def initialize(orig) @__id = orig.object_id printf "orig: %p\n", @__id @@ -58,6 +64,9 @@ class WeakRef<Delegator super end + # Return the object this WeakRef references. Raise + # RefError if this is impossible. The object is that + # to which method calls are delegated (see Delegator). def __getobj__ unless @@id_rev_map[self.object_id] == @__id Kernel::raise RefError, "Illegal Reference - probably recycled", Kernel::caller(2) @@ -71,6 +80,7 @@ class WeakRef<Delegator def __setobj__(obj) end + # Determine if this Weakref still refers to anything. def weakref_alive? @@id_rev_map[self.object_id] == @__id end |