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== Links ==
The midas documentation has moved. See [https://midas.triumf.ca/docs/develop/reference/reference/odb_keys/#sequencer /Sequencer] on the ODB keys page and [https://midas.triumf.ca/docs/develop/features/monitoring_and_control/sequencer/ Sequencer: overview] for the new documentation about the /Sequencer ODB keys.
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* [[Sequencer]]
* [[mhttpd]]
*
</div>
 
== Purpose  ==
The ODB /Sequencer tree contains information related to the [[Sequencer]].
 
== Creating the /Sequencer tree ==
The <span style="color:purple; font-style:italic">/Sequencer</span>  ODB tree is created automatically when the MIDAS web browser [[mhttpd]] is started. It will be filled with default values.
 
== Example of /Sequencer tree ==
 
 
An example of the  <span style="color:purple; font-style:italic">/Sequencer</span> tree where the sequencer is running is shown below.
<pre>
$mhttpd -p 8080 -D
$odbedit
[local:Defaults:S]ls -rwl /Sequencer
Key name                        Type    #Val  Size  Last Opn Mode Value
---------------------------------------------------------------------------
Sequencer                      DIR
    State                      DIR
        Path                    STRING  1    256  14s  0  RWD  /home/midas/online/
        Filename                STRING  1    256  14s  0  RWD 
        Error                  STRING  1    256  14s  0  RWD 
        Error line              INT    1    4    14s  0  RWD  0
        SError line            INT    1    4    14s  0  RWD  0
        Message                STRING  1    256  14s  0  RWD 
        Message Wait            BOOL    1    4    14s  0  RWD  n
        Running                BOOL    1    4    14s  0  RWD  n
        Finished                BOOL    1    4    14s  0  RWD  y
        Paused                  BOOL    1    4    14s  0  RWD  n
        Current line number    INT    1    4    14s  0  RWD  0
        SCurrent line number    INT    1    4    14s  0  RWD  0
        Stop after run          BOOL    1    4    14s  0  RWD  n
        Transition request      BOOL    1    4    14s  0  RWD  n
        Loop start line        INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        SLoop start line        INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Loop end line          INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        SLoop end line          INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Loop counter            INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Loop n                  INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Subdir                  STRING  1    256  14s  0  RWD 
        Subdir end line        INT    1    4    14s  0  RWD  0
        Subdir not notify      INT    1    4    14s  0  RWD  0
        Stack index            INT    1    4    14s  0  RWD  0
        Subroutine end line    INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Subroutine return line  INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Subroutine call line    INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        SSubroutine call line  INT    4    4    14s  0  RWD 
                                        [0]            0
                                        [1]            0
                                        [2]            0
                                        [3]            0
        Subroutine param        STRING  4    256  14s  0  RWD 
                                        [0]           
                                        [1]           
                                        [2]           
                                        [3]           
        Wait value              FLOAT  1    4    14s  0  RWD  0
        Wait limit              FLOAT  1    4    14s  0  RWD  0
        Start time              DWORD  1    4    14s  0  RWD  0
        Wait type              STRING  1    32    14s  0  RWD 
        Last msg                STRING  1    10    14s  0  RWD  00:00:00
</pre>
 
 
== Keys in the <span style="color:purple; font-style:italic">/Sequencer</span> ODB tree ==
 
=== <span style="color:purple; font-style:italic">State</span> subtree ===
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' DIR
</div>
 
This subtree in the  [[#top|/Sequencer ODB tree]] is created by [[mhttpd]]. It is used for data needed by the [[Sequencer]].
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Path</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]] contains the directory path of the sequencer loadfile(s)
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Filename</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]] contains the name of the current sequencer loadfile.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Error</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]] contains the error message from the system when an error is detected, or blank if no error.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Error line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]] contains the loadfile  line number where error occurred,  or zero if no error.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Serror line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]] contains the  ???  line number where error occurred,  or zero if no error.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Message</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]] contains the Sequencer message
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Message wait</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "n"
</div>
This key in the [[#State subtree|State subtree]] contains ...
 
<br>
---------
<br>
 
==== <span style="color:purple; font-style:italic">Running</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "n"
</div>
This key in the [[#State subtree|State subtree]] indicates whether the sequencer is running.
 
<br>
---------
<br>
 
==== <span style="color:purple; font-style:italic">Finished</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "y"
</div>
This key in the [[#State subtree|State subtree]] indicates whether the sequencer is finished.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Paused</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "y"
</div>
This key in the [[#State subtree|State subtree]] indicates whether the sequencer is paused.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Current line number</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]] indicates the line number in the loadfile that the sequencer is currently executing.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">SCurrent line number</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]] indicates the line number in ???    that the sequencer is currently executing.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Stop after run</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "n"
</div>
This key in the [[#State subtree|State subtree]] indicates whether the sequencer should stop after current run
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Transition request</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "n"
</div>
This key in the [[#State subtree|State subtree]] indicates whether a transition has been requested by the sequencer loadfile.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Transition request</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' BOOL
* '''Default:'''  "n"
</div>
This key in the [[#State subtree|State subtree]] indicates whether a transition has been requested by the sequencer loadfile.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Loop start line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]] contains the line number(s) in the sequencer loadfile where a loop starts.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">SLoop start line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]] contains the line number(s) ...
 
<br>
---------
<br>
 
==== <span style="color:purple; font-style:italic">Loop end line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]] is filled by the [[Sequencer]] and contains the line number(s) in the sequencer loadfile where a loop ends.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">SLoop end line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]] is filled by the [[Sequencer]] and contains the line number(s) ...  where a loop ends.
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Loop counter</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains the loop counter for loops.
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Loop n</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]] is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Subdir</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Subdir end line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Subdir not notify</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Stack index</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Subroutine end line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Subroutine return line</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' INT array of 4 elements
* '''Default:'''  0,0,0,0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
 
==== <span style="color:purple; font-style:italic">Subroutine param</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING array of 4 elements
* '''Default:''' 
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Wait value</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' FLOAT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Wait limit</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' FLOAT
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Start time</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' DWORD
* '''Default:'''  0
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
 
==== <span style="color:purple; font-style:italic">Wait type</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  ""
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
==== <span style="color:purple; font-style:italic">Last msg</span>  ====
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3">
* '''Type:''' STRING
* '''Default:'''  "00:00:00"
</div>
This key in the [[#State subtree|State subtree]]  is filled by the [[Sequencer]] and contains ...
 
<br>
---------
<br>
 
 
[[Category:ODB Tree]]

Latest revision as of 22:00, 30 October 2026

The midas documentation has moved. See /Sequencer on the ODB keys page and Sequencer: overview for the new documentation about the /Sequencer ODB keys.

Retrieved from "https://daq00.triumf.ca/MidasWiki/index.php?title=/Sequencer_ODB_tree&oldid=3661"