3354 - support multiple routines at a source/sink

This commit completes the final step: fixing the final failing tests (in
chessboard.mu) by teaching `restart` about the block signal.

073wait.cc

@@ -551,6 +551,7 @@ case RESTART: {
     if (Routines.at(i)->id == id) {
       if (Routines.at(i)->state == WAITING)
         Routines.at(i)->state = RUNNING;
+      Routines.at(i)->blocked = false;
       break;
     }
   }
@@ -571,3 +572,29 @@ def f [
   1:number/raw <- copy 1
 ]
 # shouldn't crash
+
+:(scenario restart_blocked_routine)
+% Scheduling_interval = 1;
+def main [
+  local-scope
+  r:number/routine-id <- start-running f
+  wait-for-routine-to-block r  # get past the block in f below
+  restart r
+  wait-for-routine-to-block r  # should run f to completion
+]
+# function with one block
+def f [
+  current-routine-is-blocked
+  # 8 instructions of padding, many more than 'main' above
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+  1:number <- add 1:number, 1
+]
+# make sure all of f ran
++mem: storing 8 in location 1

chessboard.mu

@@ -372,7 +372,7 @@ scenario read-move-blocking [
     # 'read-move' is waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state:number <- routine-state read-move-routine
-    waiting?:boolean <- equal read-move-state, 3/waiting
+    waiting?:boolean <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after coming up (before any keys were pressed)]
     # press 'a'
@@ -381,7 +381,7 @@ F read-move-blocking: routine failed to pause after coming up (before any keys w
     # 'read-move' still waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state <- routine-state read-move-routine
-    waiting? <- equal read-move-state, 3/waiting
+    waiting? <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after rank 'a']
     # press '2'
@@ -390,7 +390,7 @@ F read-move-blocking: routine failed to pause after rank 'a']
     # 'read-move' still waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state <- routine-state read-move-routine
-    waiting? <- equal read-move-state, 3/waiting
+    waiting? <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after file 'a2']
     # press '-'
@@ -399,7 +399,7 @@ F read-move-blocking: routine failed to pause after file 'a2']
     # 'read-move' still waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state <- routine-state read-move-routine
-    waiting? <- equal read-move-state, 3/waiting
+    waiting? <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after hyphen 'a2-']
     # press 'a'
@@ -408,7 +408,7 @@ F read-move-blocking: routine failed to pause after hyphen 'a2-']
     # 'read-move' still waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state <- routine-state read-move-routine
-    waiting? <- equal read-move-state, 3/waiting
+    waiting? <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after rank 'a2-a']
     # press '4'
@@ -417,7 +417,7 @@ F read-move-blocking: routine failed to pause after rank 'a2-a']
     # 'read-move' still waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state <- routine-state read-move-routine
-    waiting? <- equal read-move-state, 3/waiting
+    waiting? <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-blocking: routine failed to pause after file 'a2-a4']
     # press 'newline'
@@ -445,7 +445,7 @@ scenario read-move-quit [
     # 'read-move' is waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state:number <- routine-state read-move-routine
-    waiting?:boolean <- equal read-move-state, 3/waiting
+    waiting?:boolean <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
 F read-move-quit: routine failed to pause after coming up (before any keys were pressed)]
     # press 'q'
@@ -473,9 +473,9 @@ scenario read-move-illegal-file [
     # 'read-move' is waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state:number <- routine-state read-move-routine
-    waiting?:boolean <- equal read-move-state, 3/waiting
+    waiting?:boolean <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
-F read-move-file: routine failed to pause after coming up (before any keys were pressed)]
+F read-move-illegal-file: routine failed to pause after coming up (before any keys were pressed)]
     sink <- write sink, 50/'2'
     restart read-move-routine
     wait-for-routine-to-block read-move-routine
@@ -495,9 +495,9 @@ scenario read-move-illegal-rank [
     # 'read-move' is waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state:number <- routine-state read-move-routine
-    waiting?:boolean <- equal read-move-state, 3/waiting
+    waiting?:boolean <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
-F read-move-file: routine failed to pause after coming up (before any keys were pressed)]
+F read-move-illegal-rank: routine failed to pause after coming up (before any keys were pressed)]
     sink <- write sink, 97/a
     sink <- write sink, 97/a
     restart read-move-routine
@@ -518,9 +518,9 @@ scenario read-move-empty [
     # 'read-move' is waiting for input
     wait-for-routine-to-block read-move-routine
     read-move-state:number <- routine-state read-move-routine
-    waiting?:boolean <- equal read-move-state, 3/waiting
+    waiting?:boolean <- not-equal read-move-state, 2/discontinued
     assert waiting?, [ 
-F read-move-file: routine failed to pause after coming up (before any keys were pressed)]
+F read-move-empty: routine failed to pause after coming up (before any keys were pressed)]
     sink <- write sink, 10/newline
     sink <- write sink, 97/a
     restart read-move-routine