Added simple design document + mention distclean in README

2 files changed, 98 insertions, 0 deletions

diff --git a/README b/README
index 85cb085..40a1f18 100644
--- a/README
+++ b/README
@@ -15,6 +15,8 @@ USAGE
   Make sure you have Go 1 installed. Then you can just type 'make' to build
   globster and 'make install' to install the thing if you wish.
 
+  If you get build errors after some upgrade, try a 'make distclean' followed
+  by 'make'. If that doesn't solve it then you've probably hit a bug.
 
 
 CONTACT
diff --git a/design b/design
new file mode 100644
index 0000000..dbe5cae
--- /dev/null
+++ b/design
@@ -0,0 +1,96 @@
+<Session>:
+
+  <action> <pattern>
+
+Actions:
+  < = registered for incoming pattern
+  > = outgoing tuples for notifications
+      (A session may send out more tuples, but those are to control itself or
+      another session, rather than providing a general notification).
+
+Patterns:
+  
+  Space separated list of elements.
+
+  * = wildcard
+  $var = variable
+  $var... = one or more fields
+
+  Anything else should be considered a literal.
+
+
+======================
+
+
+
+Hub manager:
+
+  < hub $name create
+    Creates a hub session with $name
+  < hub $name close
+    Closes the hub specified with $name, or all hubs if a wildcard is specified.
+
+
+
+Hub:
+
+  < hub $name exists
+  < hub $name connect $addr
+  < hub $name disconnect
+  < hub $name info
+    Replies with hub information
+
+  < userlist $name Changed "" $data
+
+  > hub $name Created
+  > hub $name Closed
+  > hub $name Connected $addr
+  > hub $name Disconnected $reason...
+
+
+
+UserList:
+
+  < userlist $hub get $id $field...
+    $id may be a wildcard to get a complete list
+  < userlist $hub getid $gid $field...
+    $gid may not be a wildcard here
+  < userlist $hub set $id $data
+  < userlist $hub del $id
+    $id may be a wildcard to clear all
+  < userlist $hub stats
+    Replies with user count and total share size
+
+  > userlist $hub Added $id $data
+  > userlist $hub Changed $id $old $new
+  > userlist $hub Deleted $id
+
+  $hub = $name of the corresponding Hub session
+  $id = This client: ""
+                ADC: SID (FourCC string)
+               NMDC: hex(raw_nick)
+  $gid = The GID field ("global ID")
+  $data = map with information on the user
+  $old, $new = $data, only containing the fields that changed
+  $field = refers to the keys in $data, not present = all
+
+  Fields (used in $data):
+    Name         Username (UTF-8)
+    CID          ADC: CID (base32 string), NMDC: Empty
+    TID          Temp. ID = $id (read only)
+    GID          Global ID. ADC: CID, NMDC: $id (read only)
+    Desc         Description
+    EMail        E-mail address
+    Client       Client string (<appname> <space> <version>)
+    Upload       Upload speed. ADC: int, bytes/s, NMDC: Some string
+    Download     Download speed. ADC: int, bytes/s. NMDC: Empty
+    ShareSize    int, number of bytes shared
+    ShareFiles   int, number of files shared (ADC only)
+    KeyPrint     KP field (ADC only)
+    IP4          IPv4 address
+    Slots        int, number of opened slots
+    AutoSlots    int, bytes/s, extra slot will be opened if total upload < AutoSlots
+    HubsOp       int, number of hubs the user is OP on
+    HubsReg      int, number of hubs the user is registered on
+    HubsNorm     int, number of hubs the user is neither registered or OP on
+    // TODO: Active/passive + TLS support + ADC: I6, U4, U6, TO, AW