* 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: svn+ssh://ci.ruby-lang.org/ruby/trunk@11197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 7 deletions

diff --git a/ext/digest/digest.h b/ext/digest/digest.h
index f8c5dd3906..6e4906c859 100644
--- a/ext/digest/digest.h
+++ b/ext/digest/digest.h
@@ -15,16 +15,18 @@
 
 #include "ruby.h"
 
-typedef void (*hash_init_func_t)(void *);
-typedef void (*hash_update_func_t)(void *, unsigned char *, size_t);
-typedef void (*hash_finish_func_t)(void *, unsigned char *);
+#define RUBY_DIGEST_API_VERSION	2
+
+typedef void (*rb_digest_hash_init_func_t)(void *);
+typedef void (*rb_digest_hash_update_func_t)(void *, unsigned char *, size_t);
+typedef void (*rb_digest_hash_finish_func_t)(void *, unsigned char *);
 
 typedef struct {
     int api_version;
     size_t digest_len;
     size_t block_len;
     size_t ctx_size;
-    hash_init_func_t init_func;
-    hash_update_func_t update_func;
-    hash_finish_func_t finish_func;
-} algo_t;
+    rb_digest_hash_init_func_t init_func;
+    rb_digest_hash_update_func_t update_func;
+    rb_digest_hash_finish_func_t finish_func;
+} rb_digest_metadata_t;