* ext/digest: Prefix C constants with RUBY_ and C type names with

  rb_ to avoid name clash in writing extensions.

* ext/digest: Introduce Digest::Class and Digest::Instance for
  ease of implementing subclasses and add-ons, inspried by
  gotoyuzo.

* ext/digest: The Digest::Instance module now requires and assumes
  that any instance be resettable and clonable, and add some
  convenient instance methods such as "new()", for creating a new
  copy, parameter taking "digest()" and "hexdigest()", for instant
  calculation.  These methods make digest instances work just like
  digest classes.

* ext/digest/sha2/lib/digest/sha2.rb:
  Add the Digest::SHA2 class to wrap up SHA2 variants: SHA256,
  SHA384 and SHA512, hoping this module would make a decent
  example of a digest subclass written in Ruby.

* ext/digest/lib/digest.rb: Adjust autoload entries for SHA2
  classes.

* ext/digest/lib/digest/hmac.rb: Follow the framework updates.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@11197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 9 deletions

diff --git a/ext/digest/rmd160/rmd160init.c b/ext/digest/rmd160/rmd160init.c
index a06676360..763867df8 100644
--- a/ext/digest/rmd160/rmd160init.c
+++ b/ext/digest/rmd160/rmd160init.c
@@ -8,14 +8,14 @@
 #include "rmd160.h"
 #endif
 
-static algo_t rmd160 = {
-    1,
+static rb_digest_metadata_t rmd160 = {
+    RUBY_DIGEST_API_VERSION,
     RMD160_DIGEST_LENGTH,
     RMD160_BLOCK_LENGTH,
     sizeof(RMD160_CTX),
-    (hash_init_func_t)RMD160_Init,
-    (hash_update_func_t)RMD160_Update,
-    (hash_finish_func_t)RMD160_Finish,
+    (rb_digest_hash_init_func_t)RMD160_Init,
+    (rb_digest_hash_update_func_t)RMD160_Update,
+    (rb_digest_hash_finish_func_t)RMD160_Finish,
 };
 
 /*
@@ -27,7 +27,6 @@ void
 Init_rmd160()
 {
     VALUE mDigest, cDigest_Base, cDigest_RMD160;
-    ID id_metadata;
 
     rb_require("digest");
 
@@ -36,8 +35,6 @@ Init_rmd160()
 
     cDigest_RMD160 = rb_define_class_under(mDigest, "RMD160", cDigest_Base);
 
-    id_metadata = rb_intern("metadata");
-
-    rb_ivar_set(cDigest_RMD160, id_metadata,
+    rb_ivar_set(cDigest_RMD160, rb_intern("metadata"),
       Data_Wrap_Struct(rb_cObject, 0, 0, &rmd160));
 }