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<htmlxmlns="http://www.w3.org/1999/xhtml"><head><title>ConcurrencyModels (infer.Absint.ConcurrencyModels)</title><linkrel="stylesheet"href="../../../odoc.css"/><metacharset="utf-8"/><metaname="generator"content="odoc 1.5.1"/><metaname="viewport"content="width=device-width,initial-scale=1.0"/><scriptsrc="../../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><divclass="content"><header><nav><ahref="../index.html">Up</a>–<ahref="../../index.html">infer</a>»<ahref="../index.html">Absint</a>» ConcurrencyModels</nav><h1>Module <code>Absint.ConcurrencyModels</code></h1></header><dl><dtclass="spec type"id="type-lock_effect"><ahref="#type-lock_effect"class="anchor"></a><code><spanclass="keyword">type</span> lock_effect</code><code> = </code><tableclass="variant"><trid="type-lock_effect.Lock"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.Lock"class="anchor"></a><code>| </code><code><spanclass="constructor">Lock</span><spanclass="keyword">of</span><span><ahref="../HilExp/index.html#type-t">HilExp.t</a> list</span></code></td><tdclass="doc"><p>simultaneously acquire a list of locks</p></td></tr><trid="type-lock_effect.Unlock"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.Unlock"class="anchor"></a><code>| </code><code><spanclass="constructor">Unlock</span><spanclass="keyword">of</span><span><ahref="../HilExp/index.html#type-t">HilExp.t</a> list</span></code></td><tdclass="doc"><p>simultaneously release a list of locks</p></td></tr><trid="type-lock_effect.LockedIfTrue"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.LockedIfTrue"class="anchor"></a><code>| </code><code><spanclass="constructor">LockedIfTrue</span><spanclass="keyword">of</span><span><ahref="../HilExp/index.html#type-t">HilExp.t</a> list</span></code></td><tdclass="doc"><p>simultaneously attempt to acquire a list of locks</p></td></tr><trid="type-lock_effect.GuardConstruct"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.GuardConstruct"class="anchor"></a><code>| </code><code><spanclass="constructor">GuardConstruct</span><spanclass="keyword">of</span></code><code>{</code><tableclass="record"><trid="type-lock_effect.guard"class="anchored"><tdclass="def field"><ahref="#type-lock_effect.guard"class="anchor"></a><code>guard : <ahref="../HilExp/index.html#type-t">HilExp.t</a>;</code></td></tr><trid="type-lock_effect.lock"class="anchored"><tdclass="def field"><ahref="#type-lock_effect.lock"class="anchor"></a><code>lock : <ahref="../HilExp/index.html#type-t">HilExp.t</a>;</code></td></tr><trid="type-lock_effect.acquire_now"class="anchored"><tdclass="def field"><ahref="#type-lock_effect.acquire_now"class="anchor"></a><code>acquire_now : bool;</code></td></tr></table><code>}</code></td><tdclass="doc"><p>mutex guard construction - clang only</p></td></tr><trid="type-lock_effect.GuardLock"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.GuardLock"class="anchor"></a><code>| </code><code><spanclass="constructor">GuardLock</span><spanclass="keyword">of</span><ahref="../HilExp/index.html#type-t">HilExp.t</a></code></td><tdclass="doc"><p>lock underlying mutex via guard - clang only</p></td></tr><trid="type-lock_effect.GuardLockedIfTrue"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.GuardLockedIfTrue"class="anchor"></a><code>| </code><code><spanclass="constructor">GuardLockedIfTrue</span><spanclass="keyword">of</span><ahref="../HilExp/index.html#type-t">HilExp.t</a></code></td><tdclass="doc"><p>lock underlying mutex if true via guard - clang only</p></td></tr><trid="type-lock_effect.GuardUnlock"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.GuardUnlock"class="anchor"></a><code>| </code><code><spanclass="constructor">GuardUnlock</span><spanclass="keyword">of</span><ahref="../HilExp/index.html#type-t">HilExp.t</a></code></td><tdclass="doc"><p>unlock underlying mutex via guard - clang only</p></td></tr><trid="type-lock_effect.GuardDestroy"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.GuardDestroy"class="anchor"></a><code>| </code><code><spanclass="constructor">GuardDestroy</span><spanclass="keyword">of</span><ahref="../HilExp/index.html#type-t">HilExp.t</a></code></td><tdclass="doc"><p>destroy guard and unlock underlying mutex - clang only</p></td></tr><trid="type-lock_effect.NoEffect"class="anchored"><tdclass="def constructor"><ahref="#type-lock_effect.NoEffect"class="anchor"></a><code>| </code><code><spanclass="constructor">NoEffect</span></code></td><tdclass="doc"><p>function call has no lock-relevant effect</p></td></tr></table></dt><dd><p>effect of call plus Hil expressions being un/locked, if known</p></dd></dl><dl><dtclass="spec type"id="type-thread"><ahref="#type-thread"class="anchor"></a><code><spanclass="keyword">type</span> thread</code><code> = </code><tableclass="variant"><trid="type-thread.BackgroundThread"class="anchored"><tdclass="def constructor"><ahref="#type-thread.BackgroundThread"class="anchor"></a><code>| </code><code><spanclass="constructor">BackgroundThread</span></code></td></tr><trid="type-thread.MainThread"class="anchored"><tdclass="def constructor"><ahref="#type-thread.MainThread"class="anchor"></a><code>| </code><code><spanclass="constructor">MainThread</span></code></td></tr><trid="type-thread.MainThreadIfTrue"class="anchored"><tdclass="def constructor"><ahref="#type-thread.MainThreadIfTrue"class="anchor"></a><code>| </code><code><spanclass="constructor">MainThreadIfTrue</span></code></td></tr><trid="type-thread.UnknownThread"class="anchored"><tdclass="def constructor"><ahref="#type-thread.UnknownThread"class="anchor"></a><code>| </code><code><spanclass="constructor">UnknownThread</span></code></td></tr></table></dt></dl><dl><dtclass="spec value"id="val-is_thread_utils_method"><ahref="#val-is_thread_utils_method"class="anchor"></a><code><spanclass="keyword">val</span> is_thread_utils_method : string <span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span> bool</code></dt><dd><p>return true if the given method name is a utility class for checking what thread we're on TODO: clean this up so it takes only a procname</p></dd></dl><dl><dtclass="spec value"id="val-get_lock_effect"><ahref="#val-get_lock_effect"class="anchor"></a><code><spanclass="keyword">val</span> get_lock_effect : <ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><span><ahref="../HilExp/index.html#type-t">HilExp.t</a> list</span><span>-></span><ahref="index.html#type-lock_effect">lock_effect</a></code></dt><dd><p>describe how this procedure behaves with respect to locking</p></dd></dl><dl><dtclass="spec value"id="val-get_thread_assert_effect"><ahref="#val-get_thread_assert_effect"class="anchor"></a><code><spanclass="keyword">val</span> get_thread_assert_effect : <ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><ahref="index.html#type-thread">thread</a></code></dt><dd><p>In Java, certain methods can be used to assert execution on a specific kind of thread, or return a boolean equivalent to such a fact.</p></dd></dl><dl><dtclass="spec value"id="val-get_current_class_and_annotated_superclasses"><ahref="#val-get_current_class_and_annotated_superclasses"class="anchor"></a><code><spanclass="keyword">val</span> get_current_class_and_annotated_superclasses : <span>(<ahref="../../IR/Annot/Item/index.html#type-t">IR.Annot.Item.t</a><span>-></span> bool)</span><span>-></span><ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><span><span>(<ahref="../../IR/Typ/index.html#type-name">IR.Typ.name</a> * <span><ahref="../../IR/Typ/index.html#type-name">IR.Typ.name</a> list</span>)</span> option</span></code></dt><dtclass="spec value"id="val-is_recursive_lock_type"><ahref="#val-is_recursive_lock_type"class="anchor"></a><code><spanclass="keyword">val</span> is_recursive_lock_type : <ahref="../../IR/Typ/index.html#type-name">IR.Typ.name</a><span>-></span> bool</code></dt></dl><dl><dtclass="spec type"id="type-annotation_trail"><ahref="#type-annotation_trail"class="anchor"></a><code><spanclass="keyword">type</span> annotation_trail</code><code> = </code><tableclass="variant"><trid="type-annotation_trail.DirectlyAnnotated"class="anchored"><tdclass="def constructor"><ahref="#type-annotation_trail.DirectlyAnnotated"class="anchor"></a><code>| </code><code><spanclass="constructor">DirectlyAnnotated</span></code></td><tdclass="doc"><p>the method is directly annotated as such</p></td></tr><trid="type-annotation_trail.Override"class="anchored"><tdclass="def constructor"><ahref="#type-annotation_trail.Override"class="anchor"></a><code>| </code><code><spanclass="constructor">Override</span><spanclass="keyword">of</span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a></code></td><tdclass="doc"><p>it overrides a method annotated in a super class</p></td></tr><trid="type-annotation_trail.SuperClass"class="anchored"><tdclass="def constructor"><ahref="#type-annotation_trail.SuperClass"class="anchor"></a><code>| </code><code><spanclass="constructor">SuperClass</span><spanclass="keyword">of</span><ahref="../../IR/Typ/index.html#type-name">IR.Typ.name</a></code></td><tdclass="doc"><p>the method's class or a super class of that is annotated as such</p></td></tr></table></dt><dd><p>Type documenting why a method is considered as annotated with a certain annotation</p></dd></dl><div><divclass="spec include"><divclass="doc"><dl><dtclass="spec value"id="val-compare_annotation_trail"><ahref="#val-compare_annotation_trail"class="anchor"></a><code><spanclass="keyword">val</span> compare_annotation_trail : <ahref="index.html#type-annotation_trail">annotation_trail</a><span>-></span><ahref="index.html#type-annotation_trail">annotation_trail</a><span>-></span> int</code></dt></dl></div></div></div><dl><dtclass="spec value"id="val-find_override_or_superclass_annotated"><ahref="#val-find_override_or_superclass_annotated"class="anchor"></a><code><spanclass="keyword">val</span> find_override_or_superclass_annotated : <span>(<ahref="../../IR/Annot/Item/index.html#type-t">IR.Annot.Item.t</a><span>-></span> bool)</span><span>-></span><ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span><span><ahref="index.html#type-annotation_trail">annotation_trail</a> option</span></code></dt><dd><p>check if a method's transitive annotations satisfy the given predicate</p></dd></dl><dl><dtclass="spec value"id="val-annotated_as_worker_thread"><ahref="#val-annotated_as_worker_thread"class="anchor"></a><code><spanclass="keyword">val</span> annotated_as_worker_thread : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span> bool</code></dt><dtclass="spec value"id="val-runs_on_ui_thread"><ahref="#val-runs_on_ui_thread"class="anchor"></a><code><spanclass="keyword">val</span> runs_on_ui_thread : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span> bool</code></dt><dd><p>is method not transitively annotated <code>@WorkerThread</code> and is modeled or annotated <code>@UIThread</code> or equivalent?</p></dd></dl><dl><dtclass="spec value"id="val-is_android_lifecycle_method"><ahref="#val-is_android_lifecycle_method"class="anchor"></a><code><spanclass="keyword">val</span> is_android_lifecycle_method : <ahref="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a><span>-></span><ahref="../../IR/Procname/index.html#type-t">IR.Procname.t</a><span>-></span> bool</code></dt><dd><p>is method a known Android UI thread callback (eg <code>Activity.onCreate</code>)</p></dd></dl></div></body></html>
