doc updates

2 files changed, 31 insertions, 9 deletions

diff --git a/notes/register.md b/notes/register.md
index f036543..1bc7055 100644
--- a/notes/register.md
+++ b/notes/register.md
@@ -1,22 +1,44 @@
 
-### SLEEP File Types
+### Register File Types
 
-    key
-        no header, raw bytes
-    tree
+    tree: SLEEP merkel tree
         magic: 0x05025702
         entry-size: 40 bytes
         algorithm name: 'BLAKE2b' (len=7)
         entry: 32-byte BLAKE2b node hash + 8-byte Uint64BE length
-    data
-        no header, raw bytes
-    signatures
+    signatures: SLEEP array
         magic: 0x05025701
         entry-size: 65
         algorithm name: 'Ed25519' (len=7)
         entry: 64-byte Ed25519 signature
-    bitfield
+    bitfield: SLEEP array of bitfields
         magic: 0x05025700
         entry-size: 3328
         algorithm name: '' (len=0)
         entry: 1024 bytes data, 2048 bytes tree, 256 bitfield
+    key: public key
+        no header, raw bytes
+    data
+        no header, raw bytes, concatonated
+
+### Register API
+
+    SleepDirectoryRegister struct
+        open(directory, prefix)
+        create(directory, prefix, options)
+
+    file handles for tree, sig, bitfield, data; key is write-once
+
+    has(index) -> bool
+    has_all() -> bool
+    has_range(start, end) -> bool
+    get(index) -> data (arbitrary length)
+    append(entry) -> index written
+    len() -> u64
+    len_bytes() -> u64
+    verify() -> bool (verifies merkel tree against data, and signatures)
+    check() -> bool (quick consistency check of lengths, etc)
+    writable() -> bool
+
+    read_block(start, end) -> read api implementer
+
diff --git a/notes/sleep.md b/notes/sleep.md
index 5fe5d10..600b5c7 100644
--- a/notes/sleep.md
+++ b/notes/sleep.md
@@ -36,6 +36,6 @@ Fixed 32-bytes
     get_algorithm() -> &str
     read(index) -> &bytes[]
     write(index, &bytes[])
-    length() -> u64
+    len() -> u64
 
     First time around just do regular file seek() stuff