{"id":5411,"date":"2025-12-09T15:50:49","date_gmt":"2025-12-09T21:50:49","guid":{"rendered":"https:\/\/librarytestdev.wpenginepowered.com\/?post_type=doc&p=5411"},"modified":"2026-01-06T19:49:18","modified_gmt":"2026-01-07T01:49:18","slug":"correctly-sequencing-discrete-events","status":"publish","type":"doc","link":"https:\/\/library-staging.tradingtechnologies.com\/adl\/adl-overview\/advanced-concepts\/task\/correctly-sequencing-discrete-events\/","title":{"rendered":"Correctly Sequencing Discrete Events"},"content":{"rendered":"\n\n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n \n \n\n \n \n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n \n\n \n \n\n\n\n\n\n\n\n\n\n\n

Although it is possible to connect more than one edge to the discrete output port of a given block, it is not advisable. For example, consider the following ADL algo.\n<\/p>\n\n

\n<\/p>\n\n

Upon the first fill, if the path to the MsgInfoExtractor0<\/b> block is executed first followed by the path to the MsgInfoExtractor1<\/b> block, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block since the value of the MsgInfoExtractor1<\/b> block will be zero. <\/p>\n \n

However, upon the first fill, if the path to the MsgInfoExtractor1<\/b> block is executed first followed by the path to the MsgInfoExtractor0<\/b> block, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block plus the value of the output of the MsgInfoExtractor1<\/b> block. The actual path that is chosen first by the Algo Server execution logic is not always deterministic.\n<\/p>\n\n

To force a deterministic path of execution, simply insert a Sequence<\/b> block immediately downstream of the discrete output port and choose the sequence that makes sense for your algo. For example, consider this modified algo:\n<\/p>\n\n

\n<\/p>\n\n

Notice now that the path to the MsgInfoExtractor1<\/b> block will always be executed first followed by the path to the MsgInfoExtractor0<\/b> block. As such, upon the first fill, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block plus the value of the output of the MsgInfoExtractor1<\/b> block, which is what was intended.\n<\/p>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

Although it is possible to connect more than one edge to the discrete output port of a given block, it is not advisable. For example, consider the following ADL algo.\n<\/p>\n

\n<\/p>\n

Upon the first fill, if the path to the MsgInfoExtractor0<\/b> block is executed first followed by the path to the MsgInfoExtractor1<\/b> block, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block since the value of the MsgInfoExtractor1<\/b> block will be zero. <\/p>\n

However, upon the first fill, if the path to the MsgInfoExtractor1<\/b> block is executed first followed by the path to the MsgInfoExtractor0<\/b> block, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block plus the value of the output of the MsgInfoExtractor1<\/b> block. The actual path that is chosen first by the Algo Server execution logic is not always deterministic.\n<\/p>\n

To force a deterministic path of execution, simply insert a Sequence<\/b> block immediately downstream of the discrete output port and choose the sequence that makes sense for your algo. For example, consider this modified algo:\n<\/p>\n

\n<\/p>\n

Notice now that the path to the MsgInfoExtractor1<\/b> block will always be executed first followed by the path to the MsgInfoExtractor0<\/b> block. As such, upon the first fill, the output of the ValueExtractor0<\/b> block will equal the value of the output of the MsgInfoExtractor0<\/b> block plus the value of the output of the MsgInfoExtractor1<\/b> block, which is what was intended.<\/p>\n","protected":false},"author":2,"template":"","meta":{"_acf_changed":false,"footnotes":""},"docs-category":[219],"class_list":["post-5411","doc","type-doc","status-publish","hentry","docs-category-task"],"acf":[],"_links":{"self":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/5411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc"}],"about":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/types\/doc"}],"author":[{"embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":0,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/doc\/5411\/revisions"}],"wp:attachment":[{"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/media?parent=5411"}],"wp:term":[{"taxonomy":"docs-category","embeddable":true,"href":"https:\/\/library-staging.tradingtechnologies.com\/ja\/wp-json\/wp\/v2\/docs-category?post=5411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}