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<li class="toctree-l2"><a class="reference internal" href="library_index.html#gsp-pattern-miner"><span class="xref std std-ref">gsp_pattern_miner</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#hdbscan-clusterer"><span class="xref std std-ref">hdbscan_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#heaps"><span class="xref std std-ref">heaps</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#hierarchies"><span class="xref std std-ref">hierarchies</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#hodge-rank"><span class="xref std std-ref">hodge_rank</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#hook-flows"><span class="xref std std-ref">hook_flows</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#hook-objects"><span class="xref std std-ref">hook_objects</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#html"><span class="xref std std-ref">html</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-authenticate"><span class="xref std std-ref">http_authenticate</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-client"><span class="xref std std-ref">http_client</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-client-core"><span class="xref std std-ref">http_client_core</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-cookies"><span class="xref std std-ref">http_cookies</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-core"><span class="xref std std-ref">http_core</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-cors"><span class="xref std std-ref">http_cors</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-digest"><span class="xref std std-ref">http_digest</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-directory-listing"><span class="xref std std-ref">http_directory_listing</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-htmx"><span class="xref std std-ref">http_htmx</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-multipart"><span class="xref std std-ref">http_multipart</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-parameters"><span class="xref std std-ref">http_parameters</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-process-transport"><span class="xref std std-ref">http_process_transport</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-router"><span class="xref std std-ref">http_router</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-server-core"><span class="xref std std-ref">http_server_core</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-session"><span class="xref std std-ref">http_session</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-socket-transport"><span class="xref std std-ref">http_socket_transport</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-static-files"><span class="xref std std-ref">http_static_files</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket"><span class="xref std std-ref">http_websocket</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket-frames"><span class="xref std std-ref">http_websocket_frames</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket-handshake"><span class="xref std std-ref">http_websocket_handshake</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket-messages"><span class="xref std std-ref">http_websocket_messages</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket-service"><span class="xref std std-ref">http_websocket_service</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#http-websocket-session"><span class="xref std std-ref">http_websocket_session</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ica-projection"><span class="xref std std-ref">ica_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ids"><span class="xref std std-ref">ids</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ieee-754"><span class="xref std std-ref">ieee_754</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#iqr-anomaly-detector"><span class="xref std std-ref">iqr_anomaly_detector</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#iso8601"><span class="xref std std-ref">iso8601</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#iso-13616"><span class="xref std std-ref">iso_13616</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#iso-3166"><span class="xref std std-ref">iso_3166</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#iso-4217"><span class="xref std std-ref">iso_4217</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#isolation-forest-anomaly-detector"><span class="xref std std-ref">isolation_forest_anomaly_detector</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-graph"><span class="xref std std-ref">json_graph</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-lines"><span class="xref std std-ref">json_lines</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-patch"><span class="xref std std-ref">json_patch</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-path"><span class="xref std std-ref">json_path</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-pointer"><span class="xref std std-ref">json_pointer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#json-rpc"><span class="xref std std-ref">json_rpc</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#kcenters-clusterer"><span class="xref std std-ref">kcenters_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kemeny-young-ranker"><span class="xref std std-ref">kemeny_young_ranker</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kernel-pca-projection"><span class="xref std std-ref">kernel_pca_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kernel-svm-classifier"><span class="xref std std-ref">kernel_svm_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kmeans-clusterer"><span class="xref std std-ref">kmeans_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kmedians-clusterer"><span class="xref std std-ref">kmedians_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kmedoids-clusterer"><span class="xref std std-ref">kmedoids_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kmodes-clusterer"><span class="xref std std-ref">kmodes_clusterer</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#knn-classifier"><span class="xref std std-ref">knn_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#knn-distance-anomaly-detector"><span class="xref std std-ref">knn_distance_anomaly_detector</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#knn-regression"><span class="xref std std-ref">knn_regression</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#kprototypes-clusterer"><span class="xref std std-ref">kprototypes_clusterer</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#lasso-regression"><span class="xref std std-ref">lasso_regression</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#lda-classifier"><span class="xref std std-ref">lda_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#lda-projection"><span class="xref std std-ref">lda_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#lgtdoc"><span class="xref std std-ref">lgtdoc</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#linear-svm-classifier"><span class="xref std std-ref">linear_svm_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#linter-reporter"><span class="xref std std-ref">linter_reporter</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#listing"><span class="xref std std-ref">listing</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#lof-anomaly-detector"><span class="xref std std-ref">lof_anomaly_detector</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#logging"><span class="xref std std-ref">logging</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#logistic-regression-classifier"><span class="xref std std-ref">logistic_regression_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#loops"><span class="xref std std-ref">loops</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#massey-ranker"><span class="xref std std-ref">massey_ranker</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#mcp-server"><span class="xref std std-ref">mcp_server</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#memcached"><span class="xref std std-ref">memcached</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#message-pack"><span class="xref std std-ref">message_pack</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#meta"><span class="xref std std-ref">meta</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#meta-compiler"><span class="xref std std-ref">meta_compiler</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#metagol"><span class="xref std std-ref">metagol</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#mime-types"><span class="xref std std-ref">mime_types</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#modified-z-score-anomaly-detector"><span class="xref std std-ref">modified_z_score_anomaly_detector</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#multisets"><span class="xref std std-ref">multisets</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#mutation-testing"><span class="xref std std-ref">mutation_testing</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#mutations"><span class="xref std std-ref">mutations</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#naive-bayes-classifier"><span class="xref std std-ref">naive_bayes_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#nanoid"><span class="xref std std-ref">nanoid</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#nearest-centroid-classifier"><span class="xref std std-ref">nearest_centroid_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#nested-dictionaries"><span class="xref std std-ref">nested_dictionaries</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#nmea"><span class="xref std std-ref">nmea</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#nmf-projection"><span class="xref std std-ref">nmf_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#open-ai"><span class="xref std std-ref">open_ai</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#open-api"><span class="xref std std-ref">open_api</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#open-id"><span class="xref std std-ref">open_id</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#optics-clusterer"><span class="xref std std-ref">optics_clusterer</span></a></li>
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<li class="toctree-l2"><a class="reference internal" href="library_index.html#options"><span class="xref std std-ref">options</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#os"><span class="xref std std-ref">os</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#packs"><span class="xref std std-ref">packs</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#partitions"><span class="xref std std-ref">partitions</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#pattern-mining-protocols"><span class="xref std std-ref">pattern_mining_protocols</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#pca-projection"><span class="xref std std-ref">pca_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#pddl-parser"><span class="xref std std-ref">pddl_parser</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#permutations"><span class="xref std std-ref">permutations</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#plackett-luce-last-ranker"><span class="xref std std-ref">plackett_luce_last_ranker</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#plackett-luce-ranker"><span class="xref std std-ref">plackett_luce_ranker</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#pls-projection"><span class="xref std std-ref">pls_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ports-profiler"><span class="xref std std-ref">ports_profiler</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#prefix-span-pattern-miner"><span class="xref std std-ref">prefix_span_pattern_miner</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#probabilistic-pca-projection"><span class="xref std std-ref">probabilistic_pca_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#process"><span class="xref std std-ref">process</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#protobuf"><span class="xref std std-ref">protobuf</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#qda-classifier"><span class="xref std std-ref">qda_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#queues"><span class="xref std std-ref">queues</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#random"><span class="xref std std-ref">random</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#random-forest-classifier"><span class="xref std std-ref">random_forest_classifier</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#random-forest-regression"><span class="xref std std-ref">random_forest_regression</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#random-projection"><span class="xref std std-ref">random_projection</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#rank-centrality"><span class="xref std std-ref">rank_centrality</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ranked-pairs"><span class="xref std std-ref">ranked_pairs</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ranking-protocols"><span class="xref std std-ref">ranking_protocols</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#reader"><span class="xref std std-ref">reader</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#recorded-database"><span class="xref std std-ref">recorded_database</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#redis"><span class="xref std std-ref">redis</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#regression-protocols"><span class="xref std std-ref">regression_protocols</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#regression-tree"><span class="xref std std-ref">regression_tree</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#regularized-bradley-terry-ranker"><span class="xref std std-ref">regularized_bradley_terry_ranker</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#rest"><span class="xref std std-ref">rest</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#ridge-regression"><span class="xref std std-ref">ridge_regression</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#s3"><span class="xref std std-ref">s3</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#sarif"><span class="xref std std-ref">sarif</span></a></li>
<li class="toctree-l2"><a class="reference internal" href="library_index.html#sbom"><span class="xref std std-ref">sbom</span></a></li>
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<li class="breadcrumb-item active"><code class="docutils literal notranslate"><span class="pre">amqp_pool</span></code></li>
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<p class="right" id="amqp-pool-0"><span id="index-0"></span><strong>category</strong></p>
<section id="amqp-pool">
<h1><code class="docutils literal notranslate"><span class="pre">amqp_pool</span></code><a class="headerlink" href="#amqp-pool" title="Link to this heading"></a></h1>
<p>AMQP connection pool category. Import this category into an object to create a named connection pool with automatic connection management.</p>
<div class="line-block">
<div class="line"><strong>Availability:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">logtalk_load(amqp(loader))</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Author:</strong> Paulo Moura</div>
<div class="line"><strong>Version:</strong> 1:1:0</div>
<div class="line"><strong>Date:</strong> 2026-06-16</div>
</div>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Extends:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">public</span></code> <a class="reference internal" href="options_0.html#options-0"><span class="std std-ref">options</span></a></div>
</div>
<div class="line"><strong>Uses:</strong></div>
<div class="line-block">
<div class="line"><a class="reference internal" href="amqp_0.html#amqp-0"><span class="std std-ref">amqp</span></a></div>
<div class="line"><a class="reference internal" href="list_0.html#list-0"><span class="std std-ref">list</span></a></div>
<div class="line"><a class="reference internal" href="os_0.html#os-0"><span class="std std-ref">os</span></a></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Remarks:</strong></div>
<div class="line-block">
<div class="line">(none)</div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Inherited public predicates:</strong></div>
<div class="line-block">
<div class="line"> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-check-option-1"><span class="std std-ref">check_option/1</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-check-options-1"><span class="std std-ref">check_options/1</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-default-option-1"><span class="std std-ref">default_option/1</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-default-options-1"><span class="std std-ref">default_options/1</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-option-2"><span class="std std-ref">option/2</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-option-3"><span class="std std-ref">option/3</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-valid-option-1"><span class="std std-ref">valid_option/1</span></a> <a class="reference internal" href="options_protocol_0.html#options-protocol-0-valid-options-1"><span class="std std-ref">valid_options/1</span></a></div>
</div>
</div>
<nav class="contents local" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#public-predicates" id="id1">Public predicates</a></p>
<ul>
<li><p><a class="reference internal" href="#initialize-1" id="id2"><code class="docutils literal notranslate"><span class="pre">initialize/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#destroy-0" id="id3"><code class="docutils literal notranslate"><span class="pre">destroy/0</span></code></a></p></li>
<li><p><a class="reference internal" href="#acquire-1" id="id4"><code class="docutils literal notranslate"><span class="pre">acquire/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#release-1" id="id5"><code class="docutils literal notranslate"><span class="pre">release/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#with-connection-1" id="id6"><code class="docutils literal notranslate"><span class="pre">with_connection/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#stats-1" id="id7"><code class="docutils literal notranslate"><span class="pre">stats/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#resize-2" id="id8"><code class="docutils literal notranslate"><span class="pre">resize/2</span></code></a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#protected-predicates" id="id9">Protected predicates</a></p></li>
<li><p><a class="reference internal" href="#private-predicates" id="id10">Private predicates</a></p>
<ul>
<li><p><a class="reference internal" href="#pool-config-5" id="id11"><code class="docutils literal notranslate"><span class="pre">pool_config/5</span></code></a></p></li>
<li><p><a class="reference internal" href="#available-1" id="id12"><code class="docutils literal notranslate"><span class="pre">available/1</span></code></a></p></li>
<li><p><a class="reference internal" href="#in-use-2" id="id13"><code class="docutils literal notranslate"><span class="pre">in_use/2</span></code></a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#operators" id="id14">Operators</a></p></li>
</ul>
</nav>
<section id="public-predicates">
<h2><a class="toc-backref" href="#contents" role="doc-backlink">Public predicates</a><a class="headerlink" href="#public-predicates" title="Link to this heading"></a></h2>
<section id="initialize-1">
<span id="amqp-pool-0-initialize-1"></span><span id="index-1"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">initialize/1</span></code></a><a class="headerlink" href="#initialize-1" title="Link to this heading"></a></h3>
<p>Initializes the connection pool with the given configuration options. Must be called before using other pool predicates.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">initialize(Options)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">initialize(+list)</span></code> - <code class="docutils literal notranslate"><span class="pre">one_or_error</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Exceptions:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">Options</span></code> configure a minimum pool size greater than the maximum pool size:</div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">pool_error(invalid_config(min_size</span> <span class="pre">></span> <span class="pre">max_size))</span></code></div>
</div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Remarks:</strong></div>
</div>
<blockquote>
<div><ul class="simple">
<li><p>Option host(Host): AMQP server hostname. Default is localhost.</p></li>
<li><p>Option port(Port): AMQP server port. Default is 5672.</p></li>
<li><p>Option min_size(N): Minimum number of connections to maintain. Default is 1.</p></li>
<li><p>Option max_size(N): Maximum number of connections allowed. Default is 10.</p></li>
<li><p>Option connection_options(Options): Options passed to amqp::connect/4. Default is [].</p></li>
</ul>
</div></blockquote>
<hr class="docutils" />
</section>
<section id="destroy-0">
<span id="amqp-pool-0-destroy-0"></span><span id="index-2"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">destroy/0</span></code></a><a class="headerlink" href="#destroy-0" title="Link to this heading"></a></h3>
<p>Destroys the pool, closing all connections and clearing state.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">destroy</span></code> - <code class="docutils literal notranslate"><span class="pre">one</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="acquire-1">
<span id="amqp-pool-0-acquire-1"></span><span id="index-3"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">acquire/1</span></code></a><a class="headerlink" href="#acquire-1" title="Link to this heading"></a></h3>
<p>Acquires a connection from the pool. Returns an available connection or creates a new one if the pool is not at maximum capacity.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">acquire(Connection)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">acquire(--compound)</span></code> - <code class="docutils literal notranslate"><span class="pre">one_or_error</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Exceptions:</strong></div>
<div class="line-block">
<div class="line">Pool not initialized:</div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">pool_error(not_initialized)</span></code></div>
</div>
<div class="line">Pool exhausted (at max capacity):</div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">pool_error(exhausted)</span></code></div>
</div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="release-1">
<span id="amqp-pool-0-release-1"></span><span id="index-4"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">release/1</span></code></a><a class="headerlink" href="#release-1" title="Link to this heading"></a></h3>
<p>Releases a connection back to the pool, making it available for reuse.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">release(Connection)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">release(+compound)</span></code> - <code class="docutils literal notranslate"><span class="pre">one</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="with-connection-1">
<span id="amqp-pool-0-with-connection-1"></span><span id="index-5"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">with_connection/1</span></code></a><a class="headerlink" href="#with-connection-1" title="Link to this heading"></a></h3>
<p>Acquires a connection, calls Goal with the connection as argument, and releases the connection. The connection is released even if Goal fails or throws an exception.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">with_connection(Goal)</span></code></div>
</div>
<div class="line"><strong>Meta-predicate template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">with_connection(1)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">with_connection(+callable)</span></code> - <code class="docutils literal notranslate"><span class="pre">zero_or_more</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="stats-1">
<span id="amqp-pool-0-stats-1"></span><span id="index-6"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">stats/1</span></code></a><a class="headerlink" href="#stats-1" title="Link to this heading"></a></h3>
<p>Returns pool statistics as a compound term stats(Available, InUse, Total, MinSize, MaxSize).</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">stats(Stats)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">stats(-compound)</span></code> - <code class="docutils literal notranslate"><span class="pre">one</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="resize-2">
<span id="amqp-pool-0-resize-2"></span><span id="index-7"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">resize/2</span></code></a><a class="headerlink" href="#resize-2" title="Link to this heading"></a></h3>
<p>Resizes the pool by setting new minimum and maximum sizes.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">static</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">resize(MinSize,MaxSize)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">resize(+integer,+integer)</span></code> - <code class="docutils literal notranslate"><span class="pre">one_or_error</span></code></div>
</div>
</div>
</section>
</section>
<hr class="docutils" />
<section id="protected-predicates">
<h2><a class="toc-backref" href="#contents" role="doc-backlink">Protected predicates</a><a class="headerlink" href="#protected-predicates" title="Link to this heading"></a></h2>
<p>(no local declarations; see entity ancestors if any)</p>
</section>
<section id="private-predicates">
<h2><a class="toc-backref" href="#contents" role="doc-backlink">Private predicates</a><a class="headerlink" href="#private-predicates" title="Link to this heading"></a></h2>
<section id="pool-config-5">
<span id="amqp-pool-0-pool-config-5"></span><span id="index-8"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">pool_config/5</span></code></a><a class="headerlink" href="#pool-config-5" title="Link to this heading"></a></h3>
<p>Stores the pool configuration parameters.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">dynamic</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">pool_config(Host,Port,MinSize,MaxSize,ConnectionOptions)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">pool_config(?atom,?integer,?integer,?integer,?list)</span></code> - <code class="docutils literal notranslate"><span class="pre">zero_or_one</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="available-1">
<span id="amqp-pool-0-available-1"></span><span id="index-9"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">available/1</span></code></a><a class="headerlink" href="#available-1" title="Link to this heading"></a></h3>
<p>Tracks connections that are available for use.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">dynamic</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">available(Connection)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">available(?compound)</span></code> - <code class="docutils literal notranslate"><span class="pre">zero_or_more</span></code></div>
</div>
</div>
<hr class="docutils" />
</section>
<section id="in-use-2">
<span id="amqp-pool-0-in-use-2"></span><span id="index-10"></span><h3><a class="toc-backref" href="#contents" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">in_use/2</span></code></a><a class="headerlink" href="#in-use-2" title="Link to this heading"></a></h3>
<p>Tracks connections currently in use along with their acquisition timestamp.</p>
<div class="line-block">
<div class="line"><strong>Compilation flags:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">dynamic</span></code></div>
</div>
</div>
<div class="line-block">
<div class="line"><strong>Template:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">in_use(Connection,AcquireTimestamp)</span></code></div>
</div>
<div class="line"><strong>Mode and number of proofs:</strong></div>
<div class="line-block">
<div class="line"><code class="docutils literal notranslate"><span class="pre">in_use(?compound,?compound)</span></code> - <code class="docutils literal notranslate"><span class="pre">zero_or_more</span></code></div>
</div>
</div>
</section>
</section>
<hr class="docutils" />
<section id="operators">
<h2><a class="toc-backref" href="#contents" role="doc-backlink">Operators</a><a class="headerlink" href="#operators" title="Link to this heading"></a></h2>
<p>(none)</p>
</section>
</section>
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