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| author | Kartik Agaram <vc@akkartik.com> | 2019-07-27 16:01:55 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-07-27 17:47:59 -0700 |
| commit | 6e1eeeebfb453fa7c871869c19375ce60fbd7413 (patch) | |
| tree | 539c4a3fdf1756ae79770d5c4aaf6366f1d1525e /html/037abandon.cc.html | |
| parent | 8846a7f85cc04b77b2fe8a67b6d317723437b00c (diff) | |
| download | mu-6e1eeeebfb453fa7c871869c19375ce60fbd7413.tar.gz | |
5485 - promote SubX to top-level
Diffstat (limited to 'html/037abandon.cc.html')
| -rw-r--r-- | html/037abandon.cc.html | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/html/037abandon.cc.html b/html/037abandon.cc.html deleted file mode 100644 index b010c83a..00000000 --- a/html/037abandon.cc.html +++ /dev/null @@ -1,168 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> -<html> -<head> -<meta http-equiv="content-type" content="text/html; charset=UTF-8"> -<title>Mu - 037abandon.cc</title> -<meta name="Generator" content="Vim/7.4"> -<meta name="plugin-version" content="vim7.4_v2"> -<meta name="syntax" content="cpp"> -<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> -<meta name="colorscheme" content="minimal"> -<style type="text/css"> -<!-- -pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } -body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } -a { color:#eeeeee; text-decoration: none; } -a:hover { text-decoration: underline; } -* { font-size: 12pt; font-size: 1em; } -.Constant { color: #00a0a0; } -.Special { color: #c00000; } -.muRecipe { color: #ff8700; } -.Comment { color: #9090ff; } -.Comment a { color:#0000ee; text-decoration:underline; } -.Delimiter { color: #800080; } -.LineNr { color: #444444; } -.Identifier { color: #c0a020; } -.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } -.traceContains { color: #008000; } -.cSpecial { color: #008000; } ---> -</style> - -<script type='text/javascript'> -<!-- - -/* function to open any folds containing a jumped-to line before jumping to it */ -function JumpToLine() -{ - var lineNum; - lineNum = window.location.hash; - lineNum = lineNum.substr(1); /* strip off '#' */ - - if (lineNum.indexOf('L') == -1) { - lineNum = 'L'+lineNum; - } - lineElem = document.getElementById(lineNum); - /* Always jump to new location even if the line was hidden inside a fold, or - * we corrected the raw number to a line ID. - */ - if (lineElem) { - lineElem.scrollIntoView(true); - } - return true; -} -if ('onhashchange' in window) { - window.onhashchange = JumpToLine; -} - ---> -</script> -</head> -<body onload='JumpToLine();'> -<pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Reclaiming memory when it's no longer used.</span> -<span id="L2" class="LineNr"> 2 </span> -<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario new_reclaim)</span> -<span id="L4" class="LineNr"> 4 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [ -<span id="L5" class="LineNr"> 5 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span> -<span id="L6" class="LineNr"> 6 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num <span class="Comment"># because 1 will get reset during abandon below</span> -<span id="L7" class="LineNr"> 7 </span> <a href='037abandon.cc.html#L48'>abandon</a> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num -<span id="L8" class="LineNr"> 8 </span> <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span> <span class="Comment"># must be same size as abandoned memory to reuse</span> -<span id="L9" class="LineNr"> 9 </span> <span class="Constant">4</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:num -<span id="L10" class="LineNr"> 10 </span> <span class="Constant">5</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">4</span>:num -<span id="L11" class="LineNr"> 11 </span>] -<span id="L12" class="LineNr"> 12 </span><span class="Comment"># both allocations should have returned the same address</span> -<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+mem: storing 1 in location 5</span> -<span id="L14" class="LineNr"> 14 </span> -<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: When abandoning addresses we'll save them to a 'free list', segregated by size.</span> -<span id="L16" class="LineNr"> 16 </span> -<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End routine Fields")</span> -<span id="L18" class="LineNr"> 18 </span>map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>> free_list<span class="Delimiter">;</span> -<span id="L19" class="LineNr"> 19 </span> -<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span> -<span id="L21" class="LineNr"> 21 </span>ABANDON<span class="Delimiter">,</span> -<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span> -<span id="L23" class="LineNr"> 23 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"abandon"</span><span class="Delimiter">,</span> ABANDON<span class="Delimiter">);</span> -<span id="L24" class="LineNr"> 24 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span> -<span id="L25" class="LineNr"> 25 </span><span class="Normal">case</span> ABANDON: <span class="Delimiter">{</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'abandon' shouldn't write to any products in '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> -<span id="L28" class="LineNr"> 28 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">}</span> -<span id="L30" class="LineNr"> 30 </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>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L31" class="LineNr"> 31 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_address<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> -<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"ingredients of 'abandon' should be addresses, but ingredient "</span> << i << <span class="Constant">" is '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> << <span class="cSpecial">'\n'</span> << end<span class="Delimiter">();</span> -<span id="L33" class="LineNr"> 33 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L34" class="LineNr"> 34 </span> <span class="Delimiter">}</span> -<span id="L35" class="LineNr"> 35 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">}</span> -<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span> -<span id="L38" class="LineNr"> 38 </span><span class="Normal">case</span> ABANDON: <span class="Delimiter">{</span> -<span id="L39" class="LineNr"> 39 </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><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="L40" class="LineNr"> 40 </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="L41" class="LineNr"> 41 </span> canonize<span class="Delimiter">(</span>ingredient<span class="Delimiter">);</span> -<span id="L42" class="LineNr"> 42 </span> <a href='037abandon.cc.html#L48'>abandon</a><span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> ingredient<span class="Delimiter">.</span>value<span class="Delimiter">),</span> <a href='037abandon.cc.html#L58'>payload_size</a><span class="Delimiter">(</span>ingredient<span class="Delimiter">));</span> -<span id="L43" class="LineNr"> 43 </span> <span class="Delimiter">}</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span> -<span id="L46" class="LineNr"> 46 </span> -<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(code)</span> -<span id="L48" class="LineNr"> 48 </span><span class="Normal">void</span> <a href='037abandon.cc.html#L48'>abandon</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='043space.cc.html#L80'>address</a><span class="Delimiter">,</span> <span class="Normal">int</span> <a href='037abandon.cc.html#L58'>payload_size</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Comment">// clear memory</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> curr = <a href='043space.cc.html#L80'>address</a><span class="Delimiter">;</span> curr < address+payload_size<span class="Delimiter">;</span> ++curr<span class="Delimiter">)</span> -<span id="L51" class="LineNr"> 51 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L52" class="LineNr"> 52 </span> <span class="Comment">// append existing free list to address</span> -<span id="L53" class="LineNr"> 53 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"abandon"</span><span class="Delimiter">)</span> << <span class="Constant">"saving "</span> << <a href='043space.cc.html#L80'>address</a> << <span class="Constant">" in free-list of size "</span> << <a href='037abandon.cc.html#L58'>payload_size</a> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> -<span id="L54" class="LineNr"> 54 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> <a href='043space.cc.html#L80'>address</a><span class="Delimiter">,</span> <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>free_list<span class="Delimiter">,</span> <a href='037abandon.cc.html#L58'>payload_size</a><span class="Delimiter">));</span> -<span id="L55" class="LineNr"> 55 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>free_list<span class="Delimiter">,</span> <a href='037abandon.cc.html#L58'>payload_size</a><span class="Delimiter">,</span> <a href='043space.cc.html#L80'>address</a><span class="Delimiter">);</span> -<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">}</span> -<span id="L57" class="LineNr"> 57 </span> -<span id="L58" class="LineNr"> 58 </span><span class="Normal">int</span> <a href='037abandon.cc.html#L58'>payload_size</a><span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> x<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L59" class="LineNr"> 59 </span> x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span><span class="Constant">"lookup"</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span> -<span id="L60" class="LineNr"> 60 </span> lookup_memory_core<span class="Delimiter">(</span>x<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">check_for_null</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span> -<span id="L61" class="LineNr"> 61 </span> <span class="Identifier">return</span> size_of<span class="Delimiter">(</span>x<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">:(after "Allocate Special-cases")</span> -<span id="L65" class="LineNr"> 65 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>free_list<span class="Delimiter">,</span> size<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L66" class="LineNr"> 66 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"abandon"</span><span class="Delimiter">)</span> << <span class="Constant">"picking up space from free-list of size "</span> << size << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> -<span id="L67" class="LineNr"> 67 </span> <span class="Normal">int</span> result = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>free_list<span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L68" class="LineNr"> 68 </span> <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"new alloc from free list: "</span> << result << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> -<span id="L69" class="LineNr"> 69 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>free_list<span class="Delimiter">,</span> size<span class="Delimiter">,</span> <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> result<span class="Delimiter">));</span> -<span id="L70" class="LineNr"> 70 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> result<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> -<span id="L71" class="LineNr"> 71 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> curr = result<span class="Delimiter">;</span> curr < result+size<span class="Delimiter">;</span> ++curr<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L72" class="LineNr"> 72 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> curr<span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L174'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"memory in free list was not zeroed out: "</span> << curr << <span class="Constant">'/'</span> << result << <span class="Constant">"; somebody wrote to us after free!!!</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span> -<span id="L74" class="LineNr"> 74 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// always fatal</span> -<span id="L75" class="LineNr"> 75 </span> <span class="Delimiter">}</span> -<span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span> -<span id="L77" class="LineNr"> 77 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L78" class="LineNr"> 78 </span><span class="Delimiter">}</span> -<span id="L79" class="LineNr"> 79 </span> -<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(scenario new_differing_size_no_reclaim)</span> -<span id="L81" class="LineNr"> 81 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [ -<span id="L82" class="LineNr"> 82 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span> -<span id="L83" class="LineNr"> 83 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num -<span id="L84" class="LineNr"> 84 </span> <a href='037abandon.cc.html#L48'>abandon</a> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:num -<span id="L85" class="LineNr"> 85 </span> <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:array:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span><span class="Delimiter">,</span> <span class="Constant">2</span> <span class="Comment"># different size</span> -<span id="L86" class="LineNr"> 86 </span> <span class="Constant">4</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:array:num -<span id="L87" class="LineNr"> 87 </span> <span class="Constant">5</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">4</span>:num -<span id="L88" class="LineNr"> 88 </span>] -<span id="L89" class="LineNr"> 89 </span><span class="Comment"># no reuse</span> -<span id="L90" class="LineNr"> 90 </span><span class="traceContains">+mem: storing 0 in location 5</span> -<span id="L91" class="LineNr"> 91 </span> -<span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(scenario new_reclaim_array)</span> -<span id="L93" class="LineNr"> 93 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [ -<span id="L94" class="LineNr"> 94 </span> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span><span class="Delimiter">,</span> <span class="Constant">2</span> -<span id="L95" class="LineNr"> 95 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:num -<span id="L96" class="LineNr"> 96 </span> <a href='037abandon.cc.html#L48'>abandon</a> <span class="Constant">1</span>:<a href='043space.cc.html#L80'>address</a>:array:num -<span id="L97" class="LineNr"> 97 </span> <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:array:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span><span class="Delimiter">,</span> <span class="Constant">2</span> <span class="Comment"># same size</span> -<span id="L98" class="LineNr"> 98 </span> <span class="Constant">4</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>:<a href='043space.cc.html#L80'>address</a>:array:num -<span id="L99" class="LineNr"> 99 </span> <span class="Constant">5</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">4</span>:num -<span id="L100" class="LineNr">100 </span>] -<span id="L101" class="LineNr">101 </span><span class="Comment"># both calls to new returned identical addresses</span> -<span id="L102" class="LineNr">102 </span><span class="traceContains">+mem: storing 1 in location 5</span> -</pre> -</body> -</html> -<!-- vim: set foldmethod=manual : --> |