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<a href='https://github.com/akkartik/mu/blob/master/073scheduler.cc'>https://github.com/akkartik/mu/blob/master/073scheduler.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Run a second routine concurrently using 'start-running', without any</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: guarantees on how the operations in each are interleaved with each other.</span>
<span id="L3" class="LineNr"> 3 </span>
<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario scheduler)</span>
<span id="L5" class="LineNr"> 5 </span><span class="muRecipe">def</span> f1 [
<span id="L6" class="LineNr"> 6 </span> start-running f2
<span id="L7" class="LineNr"> 7 </span> <span class="Comment"># wait for f2 to run</span>
<span id="L8" class="LineNr"> 8 </span> <span class="Delimiter">{</span>
<span id="L9" class="LineNr"> 9 </span> jump-unless <span class="Constant">1</span>:num<span class="Delimiter">,</span> -<span class="Constant">1</span>
<span id="L10" class="LineNr"> 10 </span> <span class="Delimiter">}</span>
<span id="L11" class="LineNr"> 11 </span>]
<span id="L12" class="LineNr"> 12 </span><span class="muRecipe">def</span> f2 [
<span id="L13" class="LineNr"> 13 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span id="L14" class="LineNr"> 14 </span>]
<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+schedule: f1</span>
<span id="L16" class="LineNr"> 16 </span><span class="traceContains">+schedule: f2</span>
<span id="L17" class="LineNr"> 17 </span>
<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: first, add a deadline to run(routine)</span>
<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L20" class="LineNr"> 20 </span><span class="Normal">int</span> <span class="Special">Scheduling_interval</span> = <span class="Constant">500</span><span class="Delimiter">;</span>
<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L22" class="LineNr"> 22 </span><span class="Normal">int</span> instructions_run_this_scheduling_slice<span class="Delimiter">;</span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L24" class="LineNr"> 24 </span>instructions_run_this_scheduling_slice = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(after "Running One Instruction")</span>
<span id="L26" class="LineNr"> 26 </span> ++<span class="Special">Current_routine</span><span class="Delimiter">-></span>instructions_run_this_scheduling_slice<span class="Delimiter">;</span>
<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(replace{} "bool should_continue_running(const routine* current_routine)")</span>
<span id="L28" class="LineNr"> 28 </span><span class="Normal">bool</span> <a href='073scheduler.cc.html#L28'>should_continue_running</a><span class="Delimiter">(</span><span class="Normal">const</span> routine* current_routine<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L29" class="LineNr"> 29 </span> assert<span class="Delimiter">(</span>current_routine == <span class="Special">Current_routine</span><span class="Delimiter">);</span> <span class="Comment">// argument passed in just to make caller readable above</span>
<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>state == <a href='073scheduler.cc.html#L41'>RUNNING</a>
<span id="L31" class="LineNr"> 31 </span> && <span class="Special">Current_routine</span><span class="Delimiter">-></span>instructions_run_this_scheduling_slice < <span class="Special">Scheduling_interval</span><span class="Delimiter">;</span>
<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span>
<span id="L33" class="LineNr"> 33 </span><span class="Delimiter">:(after "stop_running_current_routine:")</span>
<span id="L34" class="LineNr"> 34 </span><span class="Comment">// Reset instructions_run_this_scheduling_slice</span>
<span id="L35" class="LineNr"> 35 </span><span class="Special">Current_routine</span><span class="Delimiter">-></span>instructions_run_this_scheduling_slice = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L36" class="LineNr"> 36 </span>
<span id="L37" class="LineNr"> 37 </span><span class="Comment">//: now the rest of the scheduler is clean</span>
<span id="L38" class="LineNr"> 38 </span>
<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(before "struct routine")</span>
<span id="L40" class="LineNr"> 40 </span><span class="Normal">enum</span> <a href='073scheduler.cc.html#L40'>routine_state</a> <span class="Delimiter">{</span>
<span id="L41" class="LineNr"> 41 </span> <a href='073scheduler.cc.html#L41'>RUNNING</a><span class="Delimiter">,</span>
<span id="L42" class="LineNr"> 42 </span> <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">,</span>
<span id="L43" class="LineNr"> 43 </span> <span class="Comment">// End routine States</span>
<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">};</span>
<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L46" class="LineNr"> 46 </span><span class="Normal">enum</span> <a href='073scheduler.cc.html#L40'>routine_state</a> state<span class="Delimiter">;</span>
<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L48" class="LineNr"> 48 </span>state = <a href='073scheduler.cc.html#L41'>RUNNING</a><span class="Delimiter">;</span>
<span id="L49" class="LineNr"> 49 </span>
<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L51" class="LineNr"> 51 </span>vector<routine*> <span class="Special">Routines</span><span class="Delimiter">;</span>
<span id="L52" class="LineNr"> 52 </span><span class="Normal">int</span> <span class="Special">Current_routine_index</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L53" class="LineNr"> 53 </span><span class="Delimiter">:(before "End Reset")</span>
<span id="L54" class="LineNr"> 54 </span><span class="Special">Scheduling_interval</span> = <span class="Constant">500</span><span class="Delimiter">;</span>
<span id="L55" class="LineNr"> 55 </span><span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span>
<span id="L56" class="LineNr"> 56 </span> <span class="Normal">delete</span> <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L57" class="LineNr"> 57 </span><span class="Special">Routines</span><span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L58" class="LineNr"> 58 </span><span class="Special">Current_routine</span> = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">:(replace{} "void run(const <a href='010vm.cc.html#L14'>recipe_ordinal</a> r)")</span>
<span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> run<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L61" class="LineNr"> 61 </span> run<span class="Delimiter">(</span><span class="Normal">new</span> routine<span class="Delimiter">(</span>r<span class="Delimiter">));</span>
<span id="L62" class="LineNr"> 62 </span><span class="Delimiter">}</span>
<span id="L63" class="LineNr"> 63 </span>
<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">:(code)</span>
<span id="L65" class="LineNr"> 65 </span><span class="Normal">void</span> run<span class="Delimiter">(</span>routine* rr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L66" class="LineNr"> 66 </span> <span class="Special">Routines</span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>rr<span class="Delimiter">);</span>
<span id="L67" class="LineNr"> 67 </span> <span class="Special">Current_routine_index</span> = <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Special">Current_routine</span> = <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L68" class="LineNr"> 68 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!all_routines_done<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L69" class="LineNr"> 69 </span> <a href='073scheduler.cc.html#L94'>skip_to_next_routine</a><span class="Delimiter">();</span>
<span id="L70" class="LineNr"> 70 </span> assert<span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">);</span>
<span id="L71" class="LineNr"> 71 </span> assert<span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">-></span>state == <a href='073scheduler.cc.html#L41'>RUNNING</a><span class="Delimiter">);</span>
<span id="L72" class="LineNr"> 72 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">9990</span><span class="Delimiter">,</span> <span class="Constant">"schedule"</span><span class="Delimiter">)</span> << <a href='073scheduler.cc.html#L106'>current_routine_label</a><span class="Delimiter">()</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L73" class="LineNr"> 73 </span> run_current_routine<span class="Delimiter">();</span>
<span id="L74" class="LineNr"> 74 </span> <span class="Comment">// Scheduler State Transitions</span>
<span id="L75" class="LineNr"> 75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">-></span>completed<span class="Delimiter">())</span>
<span id="L76" class="LineNr"> 76 </span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>state = <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">;</span>
<span id="L77" class="LineNr"> 77 </span> <span class="Comment">// End Scheduler State Transitions</span>
<span id="L78" class="LineNr"> 78 </span>
<span id="L79" class="LineNr"> 79 </span> <span class="Comment">// Scheduler Cleanup</span>
<span id="L80" class="LineNr"> 80 </span> <span class="Comment">// End Scheduler Cleanup</span>
<span id="L81" class="LineNr"> 81 </span> <span class="Delimiter">}</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Comment">// End Run Routine</span>
<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">}</span>
<span id="L84" class="LineNr"> 84 </span>
<span id="L85" class="LineNr"> 85 </span><span class="Normal">bool</span> <a href='073scheduler.cc.html#L85'>all_routines_done</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L86" class="LineNr"> 86 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state == <a href='073scheduler.cc.html#L41'>RUNNING</a><span class="Delimiter">)</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span>
<span id="L90" class="LineNr"> 90 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span>
<span id="L92" class="LineNr"> 92 </span>
<span id="L93" class="LineNr"> 93 </span><span class="Comment">// skip Current_routine_index past non-RUNNING routines</span>
<span id="L94" class="LineNr"> 94 </span><span class="Normal">void</span> <a href='073scheduler.cc.html#L94'>skip_to_next_routine</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L95" class="LineNr"> 95 </span> assert<span class="Delimiter">(</span>!<span class="Special">Routines</span><span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
<span id="L96" class="LineNr"> 96 </span> assert<span class="Delimiter">(</span><span class="Special">Current_routine_index</span> < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">));</span>
<span id="L97" class="LineNr"> 97 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Delimiter">(</span><span class="Special">Current_routine_index</span>+<span class="Constant">1</span><span class="Delimiter">)</span>%SIZE<span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> i != <span class="Special">Current_routine_index</span><span class="Delimiter">;</span> i = <span class="Delimiter">(</span>i+<span class="Constant">1</span><span class="Delimiter">)</span>%SIZE<span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L98" class="LineNr"> 98 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state == <a href='073scheduler.cc.html#L41'>RUNNING</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Special">Current_routine_index</span> = i<span class="Delimiter">;</span>
<span id="L100" class="LineNr">100 </span> <span class="Special">Current_routine</span> = <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L101" class="LineNr">101 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L102" class="LineNr">102 </span> <span class="Delimiter">}</span>
<span id="L103" class="LineNr">103 </span> <span class="Delimiter">}</span>
<span id="L104" class="LineNr">104 </span><span class="Delimiter">}</span>
<span id="L105" class="LineNr">105 </span>
<span id="L106" class="LineNr">106 </span>string <a href='073scheduler.cc.html#L106'>current_routine_label</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L107" class="LineNr">107 </span> <span class="Identifier">return</span> <a href='073scheduler.cc.html#L110'>routine_label</a><span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">);</span>
<span id="L108" class="LineNr">108 </span><span class="Delimiter">}</span>
<span id="L109" class="LineNr">109 </span>
<span id="L110" class="LineNr">110 </span>string <a href='073scheduler.cc.html#L110'>routine_label</a><span class="Delimiter">(</span>routine* r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L111" class="LineNr">111 </span> ostringstream result<span class="Delimiter">;</span>
<span id="L112" class="LineNr">112 </span> <span class="Normal">const</span> call_stack& calls = r<span class="Delimiter">-></span>calls<span class="Delimiter">;</span>
<span id="L113" class="LineNr">113 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>call_stack::const_iterator p = calls<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != calls<span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L114" class="LineNr">114 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p != calls<span class="Delimiter">.</span>begin<span class="Delimiter">())</span> result << <span class="Constant">'/'</span><span class="Delimiter">;</span>
<span id="L115" class="LineNr">115 </span> result << get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> p<span class="Delimiter">-></span>running_recipe<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
<span id="L116" class="LineNr">116 </span> <span class="Delimiter">}</span>
<span id="L117" class="LineNr">117 </span> <span class="Identifier">return</span> result<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<span id="L118" class="LineNr">118 </span><span class="Delimiter">}</span>
<span id="L119" class="LineNr">119 </span>
<span id="L120" class="LineNr">120 </span><span class="Comment">//: special case for the very first routine</span>
<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(replace{} "void run_main(int argc, char* argv[])")</span>
<span id="L122" class="LineNr">122 </span><span class="Normal">void</span> <a href='073scheduler.cc.html#L122'>run_main</a><span class="Delimiter">(</span><span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L123" class="LineNr">123 </span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r = get<span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"main"</span><span class="Delimiter">);</span>
<span id="L124" class="LineNr">124 </span> assert<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span id="L125" class="LineNr">125 </span> routine* main_routine = <span class="Normal">new</span> routine<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span id="L126" class="LineNr">126 </span> <span class="Comment">// pass in commandline args as ingredients to main</span>
<span id="L127" class="LineNr">127 </span> <span class="Comment">// todo: test this</span>
<span id="L128" class="LineNr">128 </span> <span class="Special">Current_routine</span> = main_routine<span class="Delimiter">;</span>
<span id="L129" class="LineNr">129 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">1</span><span class="Delimiter">;</span> i < argc<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L130" class="LineNr">130 </span> vector<<span class="Normal">double</span>> arg<span class="Delimiter">;</span>
<span id="L131" class="LineNr">131 </span> arg<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='038new_text.cc.html#L39'>new_mu_text</a><span class="Delimiter">(</span>argv[i]<span class="Delimiter">));</span>
<span id="L132" class="LineNr">132 </span> assert<span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> arg<span class="Delimiter">.</span>back<span class="Delimiter">())</span> == <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L133" class="LineNr">133 </span> <a href='026call.cc.html#L83'>current_call</a><span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>arg<span class="Delimiter">);</span>
<span id="L134" class="LineNr">134 </span> <span class="Delimiter">}</span>
<span id="L135" class="LineNr">135 </span> run<span class="Delimiter">(</span>main_routine<span class="Delimiter">);</span>
<span id="L136" class="LineNr">136 </span><span class="Delimiter">}</span>
<span id="L137" class="LineNr">137 </span>
<span id="L138" class="LineNr">138 </span><span class="SalientComment">//:: To schedule new routines to run, call 'start-running'.</span>
<span id="L139" class="LineNr">139 </span>
<span id="L140" class="LineNr">140 </span><span class="Comment">//: 'start-running' will return a unique id for the routine that was created.</span>
<span id="L141" class="LineNr">141 </span><span class="Comment">//: routine id is a number, but don't do any arithmetic on it</span>
<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L143" class="LineNr">143 </span><span class="Normal">int</span> id<span class="Delimiter">;</span>
<span id="L144" class="LineNr">144 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L145" class="LineNr">145 </span><span class="Normal">int</span> <span class="Special">Next_routine_id</span> = <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L146" class="LineNr">146 </span><span class="Delimiter">:(before "End Reset")</span>
<span id="L147" class="LineNr">147 </span><span class="Special">Next_routine_id</span> = <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L148" class="LineNr">148 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L149" class="LineNr">149 </span>id = <span class="Special">Next_routine_id</span><span class="Delimiter">;</span>
<span id="L150" class="LineNr">150 </span><span class="traceContains">++Next_routine_id;</span>
<span id="L151" class="LineNr">151 </span>
<span id="L152" class="LineNr">152 </span><span class="Comment">//: routines save the routine that spawned them</span>
<span id="L153" class="LineNr">153 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L154" class="LineNr">154 </span><span class="Comment">// todo: really should be routine_id, but that's less efficient.</span>
<span id="L155" class="LineNr">155 </span><span class="Normal">int</span> parent_index<span class="Delimiter">;</span> <span class="Comment">// only < 0 if there's no parent_index</span>
<span id="L156" class="LineNr">156 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L157" class="LineNr">157 </span>parent_index = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L158" class="LineNr">158 </span>
<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L160" class="LineNr">160 </span>START_RUNNING<span class="Delimiter">,</span>
<span id="L161" class="LineNr">161 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L162" class="LineNr">162 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"start-running"</span><span class="Delimiter">,</span> START_RUNNING<span class="Delimiter">);</span>
<span id="L163" class="LineNr">163 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L164" class="LineNr">164 </span><span class="Normal">case</span> START_RUNNING: <span class="Delimiter">{</span>
<span id="L165" class="LineNr">165 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L166" class="LineNr">166 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'start-running' requires at least one ingredient: the <a href='010vm.cc.html#L19'>recipe</a> to start running\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L167" class="LineNr">167 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L168" class="LineNr">168 </span> <span class="Delimiter">}</span>
<span id="L169" class="LineNr">169 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_recipe<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L170" class="LineNr">170 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of 'start-running' should be a <a href='010vm.cc.html#L19'>recipe</a>, but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L171" class="LineNr">171 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L172" class="LineNr">172 </span> <span class="Delimiter">}</span>
<span id="L173" class="LineNr">173 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span>
<span id="L175" class="LineNr">175 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L176" class="LineNr">176 </span><span class="Normal">case</span> START_RUNNING: <span class="Delimiter">{</span>
<span id="L177" class="LineNr">177 </span> routine* new_routine = <span class="Normal">new</span> routine<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L178" class="LineNr">178 </span> new_routine<span class="Delimiter">-></span>parent_index = <span class="Special">Current_routine_index</span><span class="Delimiter">;</span>
<span id="L179" class="LineNr">179 </span> <span class="Comment">// populate ingredients</span>
<span id="L180" class="LineNr">180 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip callee</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L181" class="LineNr">181 </span> new_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>ingredient_atoms<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
<span id="L182" class="LineNr">182 </span> reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> ingredient = <a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L183" class="LineNr">183 </span> new_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>ingredient<span class="Delimiter">);</span>
<span id="L184" class="LineNr">184 </span> <span class="Comment">// End Populate start-running Ingredient</span>
<span id="L185" class="LineNr">185 </span> <span class="Delimiter">}</span>
<span id="L186" class="LineNr">186 </span> <span class="Special">Routines</span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>new_routine<span class="Delimiter">);</span>
<span id="L187" class="LineNr">187 </span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L188" class="LineNr">188 </span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>new_routine<span class="Delimiter">-></span>id<span class="Delimiter">);</span>
<span id="L189" class="LineNr">189 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L190" class="LineNr">190 </span><span class="Delimiter">}</span>
<span id="L191" class="LineNr">191 </span>
<span id="L192" class="LineNr">192 </span><span class="Delimiter">:(scenario scheduler_runs_single_routine)</span>
<span id="L193" class="LineNr">193 </span><span class="Special">% Scheduling_interval = 1;</span>
<span id="L194" class="LineNr">194 </span><span class="muRecipe">def</span> f1 [
<span id="L195" class="LineNr">195 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L196" class="LineNr">196 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L197" class="LineNr">197 </span>]
<span id="L198" class="LineNr">198 </span><span class="traceContains">+schedule: f1</span>
<span id="L199" class="LineNr">199 </span><span class="traceContains">+run: {1: "number"} <- copy {0: "literal"}</span>
<span id="L200" class="LineNr">200 </span><span class="traceContains">+schedule: f1</span>
<span id="L201" class="LineNr">201 </span><span class="traceContains">+run: {2: "number"} <- copy {0: "literal"}</span>
<span id="L202" class="LineNr">202 </span>
<span id="L203" class="LineNr">203 </span><span class="Delimiter">:(scenario scheduler_interleaves_routines)</span>
<span id="L204" class="LineNr">204 </span><span class="Special">% Scheduling_interval = 1;</span>
<span id="L205" class="LineNr">205 </span><span class="muRecipe">def</span> f1 [
<span id="L206" class="LineNr">206 </span> start-running f2
<span id="L207" class="LineNr">207 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L208" class="LineNr">208 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L209" class="LineNr">209 </span>]
<span id="L210" class="LineNr">210 </span><span class="muRecipe">def</span> f2 [
<span id="L211" class="LineNr">211 </span> <span class="Constant">3</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L212" class="LineNr">212 </span> <span class="Constant">4</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L213" class="LineNr">213 </span>]
<span id="L214" class="LineNr">214 </span><span class="traceContains">+schedule: f1</span>
<span id="L215" class="LineNr">215 </span><span class="traceContains">+run: start-running {f2: "recipe-literal"}</span>
<span id="L216" class="LineNr">216 </span><span class="traceContains">+schedule: f2</span>
<span id="L217" class="LineNr">217 </span><span class="traceContains">+run: {3: "number"} <- copy {0: "literal"}</span>
<span id="L218" class="LineNr">218 </span><span class="traceContains">+schedule: f1</span>
<span id="L219" class="LineNr">219 </span><span class="traceContains">+run: {1: "number"} <- copy {0: "literal"}</span>
<span id="L220" class="LineNr">220 </span><span class="traceContains">+schedule: f2</span>
<span id="L221" class="LineNr">221 </span><span class="traceContains">+run: {4: "number"} <- copy {0: "literal"}</span>
<span id="L222" class="LineNr">222 </span><span class="traceContains">+schedule: f1</span>
<span id="L223" class="LineNr">223 </span><span class="traceContains">+run: {2: "number"} <- copy {0: "literal"}</span>
<span id="L224" class="LineNr">224 </span>
<span id="L225" class="LineNr">225 </span><span class="Delimiter">:(scenario start_running_takes_ingredients)</span>
<span id="L226" class="LineNr">226 </span><span class="muRecipe">def</span> f1 [
<span id="L227" class="LineNr">227 </span> start-running f2<span class="Delimiter">,</span> <span class="Constant">3</span>
<span id="L228" class="LineNr">228 </span> <span class="Comment"># wait for f2 to run</span>
<span id="L229" class="LineNr">229 </span> <span class="Delimiter">{</span>
<span id="L230" class="LineNr">230 </span> jump-unless <span class="Constant">1</span>:num<span class="Delimiter">,</span> -<span class="Constant">1</span>
<span id="L231" class="LineNr">231 </span> <span class="Delimiter">}</span>
<span id="L232" class="LineNr">232 </span>]
<span id="L233" class="LineNr">233 </span><span class="muRecipe">def</span> f2 [
<span id="L234" class="LineNr">234 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>next-ingredient
<span id="L235" class="LineNr">235 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>add <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L236" class="LineNr">236 </span>]
<span id="L237" class="LineNr">237 </span><span class="traceContains">+mem: storing 4 in location 2</span>
<span id="L238" class="LineNr">238 </span>
<span id="L239" class="LineNr">239 </span><span class="Comment">//: type-checking for 'start-running'</span>
<span id="L240" class="LineNr">240 </span>
<span id="L241" class="LineNr">241 </span><span class="Delimiter">:(scenario start_running_checks_types)</span>
<span id="L242" class="LineNr">242 </span><span class="Special">% Hide_errors = true;</span>
<span id="L243" class="LineNr">243 </span><span class="muRecipe">def</span> f1 [
<span id="L244" class="LineNr">244 </span> start-running f2<span class="Delimiter">,</span> <span class="Constant">3</span>
<span id="L245" class="LineNr">245 </span>]
<span id="L246" class="LineNr">246 </span><span class="muRecipe">def</span> f2 n:&:num [
<span id="L247" class="LineNr">247 </span>]
<span id="L248" class="LineNr">248 </span><span class="traceContains">+error: f1: ingredient 0 has the wrong type at 'start-running f2, 3'</span>
<span id="L249" class="LineNr">249 </span>
<span id="L250" class="LineNr">250 </span><span class="Comment">// 'start-running' only uses the ingredients of the callee, not its products</span>
<span id="L251" class="LineNr">251 </span><span class="Delimiter">:(before "End <a href='072recipe.cc.html#L257'>is_indirect_call_with_ingredients</a> Special-cases")</span>
<span id="L252" class="LineNr">252 </span><span class="Normal">if</span> <span class="Delimiter">(</span>r == START_RUNNING<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L253" class="LineNr">253 </span>
<span id="L254" class="LineNr">254 </span><span class="Comment">//: back to testing 'start-running'</span>
<span id="L255" class="LineNr">255 </span>
<span id="L256" class="LineNr">256 </span><span class="Delimiter">:(scenario start_running_returns_routine_id)</span>
<span id="L257" class="LineNr">257 </span><span class="muRecipe">def</span> f1 [
<span id="L258" class="LineNr">258 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>start-running f2
<span id="L259" class="LineNr">259 </span>]
<span id="L260" class="LineNr">260 </span><span class="muRecipe">def</span> f2 [
<span id="L261" class="LineNr">261 </span> <span class="Constant">12</span>:num<span class="Special"> <- </span>copy <span class="Constant">44</span>
<span id="L262" class="LineNr">262 </span>]
<span id="L263" class="LineNr">263 </span><span class="traceContains">+mem: storing 2 in location 1</span>
<span id="L264" class="LineNr">264 </span>
<span id="L265" class="LineNr">265 </span><span class="Comment">//: this scenario will require some careful setup in escaped C++</span>
<span id="L266" class="LineNr">266 </span><span class="Comment">//: (straining our tangle capabilities to near-breaking point)</span>
<span id="L267" class="LineNr">267 </span><span class="Delimiter">:(scenario scheduler_skips_completed_routines)</span>
<span id="L268" class="LineNr">268 </span><span class="Special">% <a href='010vm.cc.html#L14'>recipe_ordinal</a> f1 = load("recipe f1 [\n1:num <- copy 0\n]\n").front();</span>
<span id="L269" class="LineNr">269 </span><span class="Special">% <a href='010vm.cc.html#L14'>recipe_ordinal</a> f2 = load("recipe f2 [\n2:num <- copy 0\n]\n").front();</span>
<span id="L270" class="LineNr">270 </span><span class="Special">% Routines.push_back(new routine(f1)); // f1 meant to run</span>
<span id="L271" class="LineNr">271 </span><span class="Special">% Routines.push_back(new routine(f2));</span>
<span id="L272" class="LineNr">272 </span><span class="Special">% Routines.back()->state = COMPLETED; // f2 not meant to run</span>
<span id="L273" class="LineNr">273 </span><span class="Comment"># must have at least one routine without escaping</span>
<span id="L274" class="LineNr">274 </span><span class="muRecipe">def</span> f3 [
<span id="L275" class="LineNr">275 </span> <span class="Constant">3</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L276" class="LineNr">276 </span>]
<span id="L277" class="LineNr">277 </span><span class="Comment"># by interleaving '+' lines with '-' lines, we allow f1 and f3 to run in any order</span>
<span id="L278" class="LineNr">278 </span><span class="traceContains">+schedule: f1</span>
<span id="L279" class="LineNr">279 </span><span class="traceContains">+mem: storing 0 in location 1</span>
<span id="L280" class="LineNr">280 </span><span class="traceAbsent">-schedule: f2</span>
<span id="L281" class="LineNr">281 </span><span class="traceAbsent">-mem: storing 0 in location 2</span>
<span id="L282" class="LineNr">282 </span><span class="traceContains">+schedule: f3</span>
<span id="L283" class="LineNr">283 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L284" class="LineNr">284 </span>
<span id="L285" class="LineNr">285 </span><span class="Delimiter">:(scenario scheduler_starts_at_middle_of_routines)</span>
<span id="L286" class="LineNr">286 </span><span class="Special">% Routines.push_back(new routine(COPY));</span>
<span id="L287" class="LineNr">287 </span><span class="Special">% Routines.back()->state = COMPLETED;</span>
<span id="L288" class="LineNr">288 </span><span class="muRecipe">def</span> f1 [
<span id="L289" class="LineNr">289 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L290" class="LineNr">290 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L291" class="LineNr">291 </span>]
<span id="L292" class="LineNr">292 </span><span class="traceContains">+schedule: f1</span>
<span id="L293" class="LineNr">293 </span><span class="traceAbsent">-run: idle</span>
<span id="L294" class="LineNr">294 </span>
<span id="L295" class="LineNr">295 </span><span class="SalientComment">//:: Errors in a routine cause it to terminate.</span>
<span id="L296" class="LineNr">296 </span>
<span id="L297" class="LineNr">297 </span><span class="Delimiter">:(scenario scheduler_terminates_routines_after_errors)</span>
<span id="L298" class="LineNr">298 </span><span class="Special">% Hide_errors = true;</span>
<span id="L299" class="LineNr">299 </span><span class="Special">% Scheduling_interval = 2;</span>
<span id="L300" class="LineNr">300 </span><span class="muRecipe">def</span> f1 [
<span id="L301" class="LineNr">301 </span> start-running f2
<span id="L302" class="LineNr">302 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L303" class="LineNr">303 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L304" class="LineNr">304 </span>]
<span id="L305" class="LineNr">305 </span><span class="muRecipe">def</span> f2 [
<span id="L306" class="LineNr">306 </span> <span class="Comment"># divide by 0 twice</span>
<span id="L307" class="LineNr">307 </span> <span class="Constant">3</span>:num<span class="Special"> <- </span>divide-with-remainder <span class="Constant">4</span><span class="Delimiter">,</span> <span class="Constant">0</span>
<span id="L308" class="LineNr">308 </span> <span class="Constant">4</span>:num<span class="Special"> <- </span>divide-with-remainder <span class="Constant">4</span><span class="Delimiter">,</span> <span class="Constant">0</span>
<span id="L309" class="LineNr">309 </span>]
<span id="L310" class="LineNr">310 </span><span class="Comment"># f2 should stop after first divide by 0</span>
<span id="L311" class="LineNr">311 </span><span class="traceContains">+error: f2: divide by zero in '3:num <- divide-with-remainder 4, 0'</span>
<span id="L312" class="LineNr">312 </span><span class="traceAbsent">-error: f2: divide by zero in '4:num <- divide-with-remainder 4, 0'</span>
<span id="L313" class="LineNr">313 </span>
<span id="L314" class="LineNr">314 </span><span class="Delimiter">:(after "operator<<(ostream& os, <a href='003trace.cc.html#L225'>end</a> /*unused*/)")</span>
<span id="L315" class="LineNr">315 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Trace_stream</span> && <span class="Special">Trace_stream</span><span class="Delimiter">-></span>curr_label == <span class="Constant">"error"</span> && <span class="Special">Current_routine</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L316" class="LineNr">316 </span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>state = <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">;</span>
<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span>
<span id="L318" class="LineNr">318 </span>
<span id="L319" class="LineNr">319 </span><span class="SalientComment">//:: Routines are marked completed when their parent completes.</span>
<span id="L320" class="LineNr">320 </span>
<span id="L321" class="LineNr">321 </span><span class="Delimiter">:(scenario scheduler_kills_orphans)</span>
<span id="L322" class="LineNr">322 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L323" class="LineNr">323 </span> start-running f1
<span id="L324" class="LineNr">324 </span> <span class="Comment"># f1 never actually runs because its parent completes without waiting for it</span>
<span id="L325" class="LineNr">325 </span>]
<span id="L326" class="LineNr">326 </span><span class="muRecipe">def</span> f1 [
<span id="L327" class="LineNr">327 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L328" class="LineNr">328 </span>]
<span id="L329" class="LineNr">329 </span><span class="traceAbsent">-schedule: f1</span>
<span id="L330" class="LineNr">330 </span>
<span id="L331" class="LineNr">331 </span><span class="Delimiter">:(before "End Scheduler Cleanup")</span>
<span id="L332" class="LineNr">332 </span><span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L333" class="LineNr">333 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state == <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L334" class="LineNr">334 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>parent_index < <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// root thread</span>
<span id="L335" class="LineNr">335 </span> <span class="Comment">// structured concurrency: <a href="http://250bpm.com/blog:71">http://250bpm.com/blog:71</a></span>
<span id="L336" class="LineNr">336 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_completed_parent<span class="Delimiter">(</span>i<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L337" class="LineNr">337 </span> <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state = <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">;</span>
<span id="L338" class="LineNr">338 </span> <span class="Delimiter">}</span>
<span id="L339" class="LineNr">339 </span><span class="Delimiter">}</span>
<span id="L340" class="LineNr">340 </span>
<span id="L341" class="LineNr">341 </span><span class="Delimiter">:(code)</span>
<span id="L342" class="LineNr">342 </span><span class="Normal">bool</span> has_completed_parent<span class="Delimiter">(</span><span class="Normal">int</span> routine_index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L343" class="LineNr">343 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = routine_index<span class="Delimiter">;</span> j >= <span class="Constant">0</span><span class="Delimiter">;</span> j = <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)-></span>parent_index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L344" class="LineNr">344 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">)-></span>state == <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">)</span>
<span id="L345" class="LineNr">345 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L346" class="LineNr">346 </span> <span class="Delimiter">}</span>
<span id="L347" class="LineNr">347 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L348" class="LineNr">348 </span><span class="Delimiter">}</span>
<span id="L349" class="LineNr">349 </span>
<span id="L350" class="LineNr">350 </span><span class="SalientComment">//:: 'routine-state' can tell if a given routine id is running</span>
<span id="L351" class="LineNr">351 </span>
<span id="L352" class="LineNr">352 </span><span class="Delimiter">:(scenario routine_state_test)</span>
<span id="L353" class="LineNr">353 </span><span class="Special">% Scheduling_interval = 2;</span>
<span id="L354" class="LineNr">354 </span><span class="muRecipe">def</span> f1 [
<span id="L355" class="LineNr">355 </span> <span class="Constant">1</span>:num/child-id<span class="Special"> <- </span>start-running f2
<span id="L356" class="LineNr">356 </span> <span class="Constant">12</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># race condition since we don't care about location 12</span>
<span id="L357" class="LineNr">357 </span> <span class="Comment"># thanks to Scheduling_interval, f2's one instruction runs in between here and completes</span>
<span id="L358" class="LineNr">358 </span> <span class="Constant">2</span>:num/state<span class="Special"> <- </span>routine-state <span class="Constant">1</span>:num/child-id
<span id="L359" class="LineNr">359 </span>]
<span id="L360" class="LineNr">360 </span><span class="muRecipe">def</span> f2 [
<span id="L361" class="LineNr">361 </span> <span class="Constant">12</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L362" class="LineNr">362 </span> <span class="Comment"># trying to run a second instruction marks routine as completed</span>
<span id="L363" class="LineNr">363 </span>]
<span id="L364" class="LineNr">364 </span><span class="Comment"># recipe f2 should be in state COMPLETED</span>
<span id="L365" class="LineNr">365 </span><span class="traceContains">+mem: storing 1 in location 2</span>
<span id="L366" class="LineNr">366 </span>
<span id="L367" class="LineNr">367 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L368" class="LineNr">368 </span>ROUTINE_STATE<span class="Delimiter">,</span>
<span id="L369" class="LineNr">369 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L370" class="LineNr">370 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"routine-state"</span><span class="Delimiter">,</span> ROUTINE_STATE<span class="Delimiter">);</span>
<span id="L371" class="LineNr">371 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L372" class="LineNr">372 </span><span class="Normal">case</span> ROUTINE_STATE: <span class="Delimiter">{</span>
<span id="L373" class="LineNr">373 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L374" class="LineNr">374 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'routine-state' requires exactly one ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L375" class="LineNr">375 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L376" class="LineNr">376 </span> <span class="Delimiter">}</span>
<span id="L377" class="LineNr">377 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L378" class="LineNr">378 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of 'routine-state' should be a routine id generated by 'start-running', but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L379" class="LineNr">379 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L380" class="LineNr">380 </span> <span class="Delimiter">}</span>
<span id="L381" class="LineNr">381 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L382" class="LineNr">382 </span><span class="Delimiter">}</span>
<span id="L383" class="LineNr">383 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L384" class="LineNr">384 </span><span class="Normal">case</span> ROUTINE_STATE: <span class="Delimiter">{</span>
<span id="L385" class="LineNr">385 </span> <span class="Normal">int</span> id = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L386" class="LineNr">386 </span> <span class="Normal">int</span> result = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L387" class="LineNr">387 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L388" class="LineNr">388 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>id == id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L389" class="LineNr">389 </span> result = <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state<span class="Delimiter">;</span>
<span id="L390" class="LineNr">390 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L391" class="LineNr">391 </span> <span class="Delimiter">}</span>
<span id="L392" class="LineNr">392 </span> <span class="Delimiter">}</span>
<span id="L393" class="LineNr">393 </span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L394" class="LineNr">394 </span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span id="L395" class="LineNr">395 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L396" class="LineNr">396 </span><span class="Delimiter">}</span>
<span id="L397" class="LineNr">397 </span>
<span id="L398" class="LineNr">398 </span><span class="SalientComment">//:: miscellaneous helpers</span>
<span id="L399" class="LineNr">399 </span>
<span id="L400" class="LineNr">400 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L401" class="LineNr">401 </span>STOP<span class="Delimiter">,</span>
<span id="L402" class="LineNr">402 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L403" class="LineNr">403 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"stop"</span><span class="Delimiter">,</span> STOP<span class="Delimiter">);</span>
<span id="L404" class="LineNr">404 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L405" class="LineNr">405 </span><span class="Normal">case</span> STOP: <span class="Delimiter">{</span>
<span id="L406" class="LineNr">406 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L407" class="LineNr">407 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'stop' requires exactly one ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L408" class="LineNr">408 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L409" class="LineNr">409 </span> <span class="Delimiter">}</span>
<span id="L410" class="LineNr">410 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L411" class="LineNr">411 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of 'stop' should be a routine id generated by 'start-running', but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L412" class="LineNr">412 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L413" class="LineNr">413 </span> <span class="Delimiter">}</span>
<span id="L414" class="LineNr">414 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L415" class="LineNr">415 </span><span class="Delimiter">}</span>
<span id="L416" class="LineNr">416 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L417" class="LineNr">417 </span><span class="Normal">case</span> STOP: <span class="Delimiter">{</span>
<span id="L418" class="LineNr">418 </span> <span class="Normal">int</span> id = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L419" class="LineNr">419 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L420" class="LineNr">420 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>id == id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L421" class="LineNr">421 </span> <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state = <a href='073scheduler.cc.html#L42'>COMPLETED</a><span class="Delimiter">;</span>
<span id="L422" class="LineNr">422 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L423" class="LineNr">423 </span> <span class="Delimiter">}</span>
<span id="L424" class="LineNr">424 </span> <span class="Delimiter">}</span>
<span id="L425" class="LineNr">425 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L426" class="LineNr">426 </span><span class="Delimiter">}</span>
<span id="L427" class="LineNr">427 </span>
<span id="L428" class="LineNr">428 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L429" class="LineNr">429 </span>_DUMP_ROUTINES<span class="Delimiter">,</span>
<span id="L430" class="LineNr">430 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L431" class="LineNr">431 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$dump-routines"</span><span class="Delimiter">,</span> _DUMP_ROUTINES<span class="Delimiter">);</span>
<span id="L432" class="LineNr">432 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L433" class="LineNr">433 </span><span class="Normal">case</span> _DUMP_ROUTINES: <span class="Delimiter">{</span>
<span id="L434" class="LineNr">434 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L435" class="LineNr">435 </span><span class="Delimiter">}</span>
<span id="L436" class="LineNr">436 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L437" class="LineNr">437 </span><span class="Normal">case</span> _DUMP_ROUTINES: <span class="Delimiter">{</span>
<span id="L438" class="LineNr">438 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L439" class="LineNr">439 </span> cerr << i << <span class="Constant">": "</span> << <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>id << <span class="Constant">' '</span> << <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state << <span class="Constant">' '</span> << <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>parent_index << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L440" class="LineNr">440 </span> <span class="Delimiter">}</span>
<span id="L441" class="LineNr">441 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L442" class="LineNr">442 </span><span class="Delimiter">}</span>
<span id="L443" class="LineNr">443 </span>
<span id="L444" class="LineNr">444 </span><span class="Comment">//: support for stopping routines after some number of cycles</span>
<span id="L445" class="LineNr">445 </span>
<span id="L446" class="LineNr">446 </span><span class="Delimiter">:(scenario routine_discontinues_past_limit)</span>
<span id="L447" class="LineNr">447 </span><span class="Special">% Scheduling_interval = 2;</span>
<span id="L448" class="LineNr">448 </span><span class="muRecipe">def</span> f1 [
<span id="L449" class="LineNr">449 </span> <span class="Constant">1</span>:num/child-id<span class="Special"> <- </span>start-running f2
<span id="L450" class="LineNr">450 </span> limit-time <span class="Constant">1</span>:num/child-id<span class="Delimiter">,</span> <span class="Constant">10</span>
<span id="L451" class="LineNr">451 </span> <span class="Comment"># padding loop just to make sure f2 has time to completed</span>
<span id="L452" class="LineNr">452 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">20</span>
<span id="L453" class="LineNr">453 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>subtract <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L454" class="LineNr">454 </span> jump-<span class="Normal">if</span> <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">-2:offset</span>
<span id="L455" class="LineNr">455 </span>]
<span id="L456" class="LineNr">456 </span><span class="muRecipe">def</span> f2 [
<span id="L457" class="LineNr">457 </span> jump <span class="Constant">-1:offset</span> <span class="Comment"># run forever</span>
<span id="L458" class="LineNr">458 </span> $print [should never get here]<span class="Delimiter">,</span> <span class="Constant">10</span>/newline
<span id="L459" class="LineNr">459 </span>]
<span id="L460" class="LineNr">460 </span><span class="Comment"># f2 terminates</span>
<span id="L461" class="LineNr">461 </span><span class="traceContains">+schedule: discontinuing routine 2</span>
<span id="L462" class="LineNr">462 </span>
<span id="L463" class="LineNr">463 </span><span class="Delimiter">:(before "End routine States")</span>
<span id="L464" class="LineNr">464 </span>DISCONTINUED<span class="Delimiter">,</span>
<span id="L465" class="LineNr">465 </span><span class="Delimiter">:(before "End Scheduler State Transitions")</span>
<span id="L466" class="LineNr">466 </span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">-></span>limit >= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L467" class="LineNr">467 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Current_routine</span><span class="Delimiter">-></span>limit <= <span class="Special">Scheduling_interval</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L468" class="LineNr">468 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"schedule"</span><span class="Delimiter">)</span> << <span class="Constant">"discontinuing routine "</span> << <span class="Special">Current_routine</span><span class="Delimiter">-></span>id << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L469" class="LineNr">469 </span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>state = DISCONTINUED<span class="Delimiter">;</span>
<span id="L470" class="LineNr">470 </span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>limit = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L471" class="LineNr">471 </span> <span class="Delimiter">}</span>
<span id="L472" class="LineNr">472 </span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L473" class="LineNr">473 </span> <span class="Special">Current_routine</span><span class="Delimiter">-></span>limit -= <span class="Special">Scheduling_interval</span><span class="Delimiter">;</span>
<span id="L474" class="LineNr">474 </span> <span class="Delimiter">}</span>
<span id="L475" class="LineNr">475 </span><span class="Delimiter">}</span>
<span id="L476" class="LineNr">476 </span>
<span id="L477" class="LineNr">477 </span><span class="Delimiter">:(before "End Test Teardown")</span>
<span id="L478" class="LineNr">478 </span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span> && any_routines_with_error<span class="Delimiter">())</span>
<span id="L479" class="LineNr">479 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"some routines died with errors\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L480" class="LineNr">480 </span><span class="Delimiter">:(before "End Mu Test Teardown")</span>
<span id="L481" class="LineNr">481 </span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Passed</span> && any_routines_with_error<span class="Delimiter">())</span>
<span id="L482" class="LineNr">482 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Special">Current_scenario</span><span class="Delimiter">-></span>name << <span class="Constant">": some routines died with errors\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L483" class="LineNr">483 </span>
<span id="L484" class="LineNr">484 </span><span class="Delimiter">:(code)</span>
<span id="L485" class="LineNr">485 </span><span class="Normal">bool</span> any_routines_with_error<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L486" class="LineNr">486 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L487" class="LineNr">487 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>state == DISCONTINUED<span class="Delimiter">)</span>
<span id="L488" class="LineNr">488 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L489" class="LineNr">489 </span> <span class="Delimiter">}</span>
<span id="L490" class="LineNr">490 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L491" class="LineNr">491 </span><span class="Delimiter">}</span>
<span id="L492" class="LineNr">492 </span>
<span id="L493" class="LineNr">493 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L494" class="LineNr">494 </span><span class="Normal">int</span> limit<span class="Delimiter">;</span>
<span id="L495" class="LineNr">495 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L496" class="LineNr">496 </span>limit = -<span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> no limit </span><span class="Comment">*/</span>
<span id="L497" class="LineNr">497 </span>
<span id="L498" class="LineNr">498 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L499" class="LineNr">499 </span>LIMIT_TIME<span class="Delimiter">,</span>
<span id="L500" class="LineNr">500 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L501" class="LineNr">501 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"limit-time"</span><span class="Delimiter">,</span> LIMIT_TIME<span class="Delimiter">);</span>
<span id="L502" class="LineNr">502 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L503" class="LineNr">503 </span><span class="Normal">case</span> LIMIT_TIME: <span class="Delimiter">{</span>
<span id="L504" class="LineNr">504 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L505" class="LineNr">505 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'limit-time' requires exactly two ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L506" class="LineNr">506 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L507" class="LineNr">507 </span> <span class="Delimiter">}</span>
<span id="L508" class="LineNr">508 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L509" class="LineNr">509 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of 'limit-time' should be a routine id generated by 'start-running', but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L510" class="LineNr">510 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L511" class="LineNr">511 </span> <span class="Delimiter">}</span>
<span id="L512" class="LineNr">512 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L513" class="LineNr">513 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"second ingredient of 'limit-time' should be a number (of instructions to run for), but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L514" class="LineNr">514 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L515" class="LineNr">515 </span> <span class="Delimiter">}</span>
<span id="L516" class="LineNr">516 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L517" class="LineNr">517 </span><span class="Delimiter">}</span>
<span id="L518" class="LineNr">518 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L519" class="LineNr">519 </span><span class="Normal">case</span> LIMIT_TIME: <span class="Delimiter">{</span>
<span id="L520" class="LineNr">520 </span> <span class="Normal">int</span> id = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L521" class="LineNr">521 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L522" class="LineNr">522 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>id == id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L523" class="LineNr">523 </span> <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>limit = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L524" class="LineNr">524 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L525" class="LineNr">525 </span> <span class="Delimiter">}</span>
<span id="L526" class="LineNr">526 </span> <span class="Delimiter">}</span>
<span id="L527" class="LineNr">527 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L528" class="LineNr">528 </span><span class="Delimiter">}</span>
<span id="L529" class="LineNr">529 </span>
<span id="L530" class="LineNr">530 </span><span class="Delimiter">:(before "End routine Fields")</span>
<span id="L531" class="LineNr">531 </span><span class="Normal">int</span> instructions_run<span class="Delimiter">;</span>
<span id="L532" class="LineNr">532 </span><span class="Delimiter">:(before "End routine Constructor")</span>
<span id="L533" class="LineNr">533 </span>instructions_run = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L534" class="LineNr">534 </span><span class="Delimiter">:(before "Reset instructions_run_this_scheduling_slice")</span>
<span id="L535" class="LineNr">535 </span><span class="Special">Current_routine</span><span class="Delimiter">-></span>instructions_run += <span class="Special">Current_routine</span><span class="Delimiter">-></span>instructions_run_this_scheduling_slice<span class="Delimiter">;</span>
<span id="L536" class="LineNr">536 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L537" class="LineNr">537 </span>NUMBER_OF_INSTRUCTIONS<span class="Delimiter">,</span>
<span id="L538" class="LineNr">538 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L539" class="LineNr">539 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"number-of-instructions"</span><span class="Delimiter">,</span> NUMBER_OF_INSTRUCTIONS<span class="Delimiter">);</span>
<span id="L540" class="LineNr">540 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L541" class="LineNr">541 </span><span class="Normal">case</span> NUMBER_OF_INSTRUCTIONS: <span class="Delimiter">{</span>
<span id="L542" class="LineNr">542 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L543" class="LineNr">543 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'number-of-instructions' requires exactly one ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L544" class="LineNr">544 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L545" class="LineNr">545 </span> <span class="Delimiter">}</span>
<span id="L546" class="LineNr">546 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L547" class="LineNr">547 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of 'number-of-instructions' should be a routine id generated by 'start-running', but got '"</span> << inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L548" class="LineNr">548 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L549" class="LineNr">549 </span> <span class="Delimiter">}</span>
<span id="L550" class="LineNr">550 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L551" class="LineNr">551 </span><span class="Delimiter">}</span>
<span id="L552" class="LineNr">552 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L553" class="LineNr">553 </span><span class="Normal">case</span> NUMBER_OF_INSTRUCTIONS: <span class="Delimiter">{</span>
<span id="L554" class="LineNr">554 </span> <span class="Normal">int</span> id = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L555" class="LineNr">555 </span> <span class="Normal">int</span> result = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L556" class="LineNr">556 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L557" class="LineNr">557 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>id == id<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L558" class="LineNr">558 </span> result = <span class="Special">Routines</span><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)-></span>instructions_run<span class="Delimiter">;</span>
<span id="L559" class="LineNr">559 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L560" class="LineNr">560 </span> <span class="Delimiter">}</span>
<span id="L561" class="LineNr">561 </span> <span class="Delimiter">}</span>
<span id="L562" class="LineNr">562 </span> products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L563" class="LineNr">563 </span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span id="L564" class="LineNr">564 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L565" class="LineNr">565 </span><span class="Delimiter">}</span>
<span id="L566" class="LineNr">566 </span>
<span id="L567" class="LineNr">567 </span><span class="Delimiter">:(scenario number_of_instructions)</span>
<span id="L568" class="LineNr">568 </span><span class="muRecipe">def</span> f1 [
<span id="L569" class="LineNr">569 </span> <span class="Constant">10</span>:num/child-id<span class="Special"> <- </span>start-running f2
<span id="L570" class="LineNr">570 </span> <span class="Delimiter">{</span>
<span id="L571" class="LineNr">571 </span> loop-unless <span class="Constant">20</span>:num
<span id="L572" class="LineNr">572 </span> <span class="Delimiter">}</span>
<span id="L573" class="LineNr">573 </span> <span class="Constant">11</span>:num<span class="Special"> <- </span>number-of-instructions <span class="Constant">10</span>:num
<span id="L574" class="LineNr">574 </span>]
<span id="L575" class="LineNr">575 </span><span class="muRecipe">def</span> f2 [
<span id="L576" class="LineNr">576 </span> <span class="Comment"># 2 instructions worth of work</span>
<span id="L577" class="LineNr">577 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L578" class="LineNr">578 </span> <span class="Constant">20</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span id="L579" class="LineNr">579 </span>]
<span id="L580" class="LineNr">580 </span><span class="Comment"># f2 runs an extra instruction for the implicit return added by the</span>
<span id="L581" class="LineNr">581 </span><span class="Comment"># fill_in_return_ingredients transform</span>
<span id="L582" class="LineNr">582 </span><span class="traceContains">+mem: storing 3 in location 11</span>
<span id="L583" class="LineNr">583 </span>
<span id="L584" class="LineNr">584 </span><span class="Delimiter">:(scenario number_of_instructions_across_multiple_scheduling_intervals)</span>
<span id="L585" class="LineNr">585 </span><span class="Special">% Scheduling_interval = 1;</span>
<span id="L586" class="LineNr">586 </span><span class="muRecipe">def</span> f1 [
<span id="L587" class="LineNr">587 </span> <span class="Constant">10</span>:num/child-id<span class="Special"> <- </span>start-running f2
<span id="L588" class="LineNr">588 </span> <span class="Delimiter">{</span>
<span id="L589" class="LineNr">589 </span> loop-unless <span class="Constant">20</span>:num
<span id="L590" class="LineNr">590 </span> <span class="Delimiter">}</span>
<span id="L591" class="LineNr">591 </span> <span class="Constant">11</span>:num<span class="Special"> <- </span>number-of-instructions <span class="Constant">10</span>:num
<span id="L592" class="LineNr">592 </span>]
<span id="L593" class="LineNr">593 </span><span class="muRecipe">def</span> f2 [
<span id="L594" class="LineNr">594 </span> <span class="Comment"># 4 instructions worth of work</span>
<span id="L595" class="LineNr">595 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L596" class="LineNr">596 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span id="L597" class="LineNr">597 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>
<span id="L598" class="LineNr">598 </span> <span class="Constant">20</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span id="L599" class="LineNr">599 </span>]
<span id="L600" class="LineNr">600 </span><span class="Comment"># f2 runs an extra instruction for the implicit return added by the</span>
<span id="L601" class="LineNr">601 </span><span class="Comment"># fill_in_return_ingredients transform</span>
<span id="L602" class="LineNr">602 </span><span class="traceContains">+mem: storing 5 in location 11</span>
<span id="L603" class="LineNr">603 </span>
<span id="L604" class="LineNr">604 </span><span class="SalientComment">//:: make sure that each routine gets a different alloc to start</span>
<span id="L605" class="LineNr">605 </span>
<span id="L606" class="LineNr">606 </span><span class="Delimiter">:(scenario new_concurrent)</span>
<span id="L607" class="LineNr">607 </span><span class="muRecipe">def</span> f1 [
<span id="L608" class="LineNr">608 </span> start-running f2
<span id="L609" class="LineNr">609 </span> <span class="Constant">1</span>:&:num/<span class="Special">raw <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L610" class="LineNr">610 </span> <span class="Comment"># wait for f2 to complete</span>
<span id="L611" class="LineNr">611 </span> <span class="Delimiter">{</span>
<span id="L612" class="LineNr">612 </span> loop-unless <span class="Constant">4</span>:num/<span class="Special">raw</span>
<span id="L613" class="LineNr">613 </span> <span class="Delimiter">}</span>
<span id="L614" class="LineNr">614 </span>]
<span id="L615" class="LineNr">615 </span><span class="muRecipe">def</span> f2 [
<span id="L616" class="LineNr">616 </span> <span class="Constant">2</span>:&:num/<span class="Special">raw <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L617" class="LineNr">617 </span> <span class="Comment"># hack: assumes scheduler implementation</span>
<span id="L618" class="LineNr">618 </span> <span class="Constant">3</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal <span class="Constant">1</span>:&:num/<span class="Special">raw</span><span class="Delimiter">,</span> <span class="Constant">2</span>:&:num/<span class="Special">raw</span>
<span id="L619" class="LineNr">619 </span> <span class="Comment"># signal f2 complete</span>
<span id="L620" class="LineNr">620 </span> <span class="Constant">4</span>:num/<span class="Special">raw <- </span>copy <span class="Constant">1</span>
<span id="L621" class="LineNr">621 </span>]
<span id="L622" class="LineNr">622 </span><span class="traceContains">+mem: storing 0 in location 3</span>
</pre>
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