more fixes/tweaks about cancelled lindas

* bumped version to 3.8.5
* linda:limit() returns lanes.cancel_error on a limited linda
* lanes.genlock() and lanes.genatomic() support cancelled lindas by
returning lanes.cancel_error whenever appropriate
* fixed a possible Lua stack overflow when calling linda:dump()
* fixed cases where linda:send() and linda:receive() would not return
lanes.cancel_error when they should

1 files changed, 7 insertions, 7 deletions

diff --git a/index.html b/index.html
index 1ad25a6..2468ad8 100644
--- a/index.html
+++ b/index.html
@@ -70,7 +70,7 @@
                         </p>
 
                         <p>
-                                This document was revised on 10-Feb-14, and applies to version <tt>3.8.4</tt>.
+                                This document was revised on 13-Feb-14, and applies to version <tt>3.8.5</tt>.
                         </p>
                 </font>
         </center>
@@ -1039,7 +1039,7 @@
 
         [key, val [, ...]]|[lanes.cancel_error] = h:receive( timeout, h.batched, key, n_uint_min[, n_uint_max])
 
-        [true] = h:limit( key, n_uint)
+        [true|lanes.cancel_error] = h:limit( key, n_uint)
 </pre></td></tr></table>
 
 <p>
@@ -1288,11 +1288,11 @@ events to a common Linda, but... :).</font>
 </p>
 
 <table border="1" bgcolor="#E0E0FF" cellpadding="10" style="width:50%"><tr><td><pre>
-        lock_func = lanes.genlock( linda_h, key [,N_uint=1])
+        lock_func|lanes.cancel_error = lanes.genlock( linda_h, key [,N_uint=1])
 
-        bool = lock_func( M_uint [, "try"] )     -- acquire
+        bool|lanes.cancel_error = lock_func( M_uint [, "try"] )     -- acquire
         ..
-        bool = lock_func( -M_uint)    -- release
+        bool|lanes.cancel_error = lock_func( -M_uint)    -- release
 </pre></td></tr></table>
 
 <p>
@@ -1314,9 +1314,9 @@ events to a common Linda, but... :).</font>
 <p>
 
 <table border="1" bgcolor="#E0E0FF" cellpadding="10" style="width:50%"><tr><td><pre>
-        atomic_func = lanes.genatomic( linda_h, key [,initial_num=0.0])
+        atomic_func|lanes.cancel_error = lanes.genatomic( linda_h, key [,initial_num=0.0])
 
-        new_num = atomic_func( [diff_num=+1.0])
+        new_num|lanes.cancel_error = atomic_func( [diff_num=+1.0])
 </pre></td></tr></table>
 
 <p>