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author | Dan Gudmundsson <[email protected]> | 2013-12-20 10:44:42 +0100 |
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committer | Dan Gudmundsson <[email protected]> | 2013-12-20 10:44:42 +0100 |
commit | 6f0b3bd3fc28de703490470630922873775c97f5 (patch) | |
tree | 520b662b4459499e8c58b658285368d81334d326 /lib/tv/doc/src/table_visualizer_chapter.xml | |
parent | 0b68c48630311c5c97db50159c3076fa5b17a43d (diff) | |
parent | 560f73141afbc1ef41d6c8acb3974b3632ad6f25 (diff) | |
download | otp-6f0b3bd3fc28de703490470630922873775c97f5.tar.gz otp-6f0b3bd3fc28de703490470630922873775c97f5.tar.bz2 otp-6f0b3bd3fc28de703490470630922873775c97f5.zip |
Merge branch 'dgud/remove-gs-apps/OTP-10915'
Diffstat (limited to 'lib/tv/doc/src/table_visualizer_chapter.xml')
-rw-r--r-- | lib/tv/doc/src/table_visualizer_chapter.xml | 658 |
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diff --git a/lib/tv/doc/src/table_visualizer_chapter.xml b/lib/tv/doc/src/table_visualizer_chapter.xml deleted file mode 100644 index 13757dff59..0000000000 --- a/lib/tv/doc/src/table_visualizer_chapter.xml +++ /dev/null @@ -1,658 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE chapter SYSTEM "chapter.dtd"> - -<chapter> - <header> - <copyright> - <year>1997</year><year>2013</year> - <holder>Ericsson AB. All Rights Reserved.</holder> - </copyright> - <legalnotice> - The contents of this file are subject to the Erlang Public License, - Version 1.1, (the "License"); you may not use this file except in - compliance with the License. You should have received a copy of the - Erlang Public License along with this software. If not, it can be - retrieved online at http://www.erlang.org/. - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - the License for the specific language governing rights and limitations - under the License. - - </legalnotice> - - <title>The Table Visualizer</title> - <prepared>EPK/TK Fredrik Gustafson</prepared> - <responsible></responsible> - <docno></docno> - <approved>EPK/TK (Fredrik Gustafson)</approved> - <checked></checked> - <date>1998-01-19</date> - <rev>C</rev> - <file>table_visualizer.xml</file> - </header> - <warning> - <p> - The TV application has been superseded by the Observer application. - TV will be removed in R16. - </p> - </warning> - <p>The TV, TV, is a tool that enables the user to examine - ETS and Mnesia tables on any (connected) node in the currently running Erlang - system. Once a certain table has been opened in the tool, the content may be - viewed in various levels of detail. The content may also be edited, as well as - sorted, using any element as key. It is also possible to search for a specified object or - element. The table may be polled anytime, either regularly, at specified - intervals, or manually. New and deleted objects, as well as those altered, are - marked with characteristic colours.</p> - <p>Information about the table itself (permissions, storage type, and so on) may - also be obtained. - </p> - - <section> - <title>Terminology and Background</title> - <p>To avoid confusion, we have to distinguish between the <em>actual table</em>, i.e., - the data stored in ETS or Mnesia, and the <em>image of the table</em>, i.e., the - data shown in the TV. The <em>image of the table</em> is simply a copy - of the <em>actual table</em>, and can be manipulated in a number of ways, for example - sorted. It follows that these manipulations in no way affects the <em>actual table</em>!</p> - <p>The expression <em>poll the table</em> is used for the operation of scanning through the - content of the actual table (in order to keep the image of the table consistent with the - actual table).</p> - <p>The ETS and Mnesia modules provides the user with the ability to store vast quantities - of data in, the data organized as dynamic, unordered tables. The ETS - facility stores <em>tuples</em>, while Mnesia stores <em>records</em>. - Each tuple consists of one or more <em>elements</em>; each record consists of one or - more <em>fields</em>. It should be noted that, since records are implemented as tuples, - with the record name as the first element, the first field of a record becomes the second - element in the corresponding tuple! - <br></br> - - In the following, all table objects are mainly referred to as tuples, regardless of the - table type.</p> - <p>For further information about ETS and Mnesia, please see the manual pages and Mnesia User's Guide.</p> - </section> - - <section> - <title>Starting the TV</title> - <p>The TV tool is started by giving the command</p> - <pre> - tv:start(). - </pre> - <p>The window that appears, is hereafter referred to as <em>the TV main window</em>. It consists of:</p> - <list type="bulleted"> - <item> - <p>a <em>menubar</em>.</p> - </item> - <item> - <p>a <em>grid</em>, i.e., a multicolumnar array, where tables existing on - the current node is shown. Each square in the grid is called a <em>cell</em>.</p> - </item> - </list> - <image file="tv_start.gif"> - <icaption>The TV Main Window at startup.</icaption> - </image> - <p>For each table, the following information is shown, in order: - </p> - <list type="bulleted"> - <item> - <p>the <em>table name</em>. If the table is accessible through this name, as is the - case with Mnesia tables and named ETS tables, the table name is shown in - black, otherwise in medium grey.</p> - </item> - <item> - <p>the <em>table identifier</em>, if there is one; since Mnesia tables are accessed - solely through the table name, this cell will in those cases be blank.</p> - </item> - <item> - <p>the <em>process identifier (PID) of the process owning the table</em>.</p> - </item> - <item> - <p>the <em>name of the process owning the table</em>, provided the process - is registered.</p> - </item> - <item> - <p>the <em>table size</em>, i.e., the number of objects currently stored in - the table.</p> - </item> - </list> - </section> - - <section> - <title>Changing View</title> - <p>The TV will by default show currently existing ETS tables, - but the user may easily switch to a Mnesia table view, by choosing the - <em>Mnesia Tables</em> option in the <em>View</em> menu: - </p> - <image file="tv_start_mnesia.gif"> - <icaption>The TV Main Window, showing Mnesia tables.</icaption> - </image> - <p>Normally, system tables (i.e., tables used by system applications) and unreadable - tables are not shown. The menu option <em>System Tables</em>, in the <em>Options</em> - menu, makes the system tables visible: - </p> - <image file="tv_start_system.gif"> - <icaption>The TV Main Window, showing readable user and system tables.</icaption> - </image> - <p>Still unreadable tables are hidden, but the menu option <em>Unreadable Tables</em>, - also in the <em>Options</em> menu, makes even those tables visible. It shall be noted - that rows containing unreadable tables are shaded, using a grey colour: - </p> - <image file="tv_start_system_unreadable.gif"> - <icaption>The TV Main Window, showing both readable and unreadable user and system tables.</icaption> - </image> - <p>Once a table view has been opened, the user may choose how to view it: it may be sorted - by the table names, by the table identifiers, by the process identifiers of the owner - processes, or by the names of the owning processes. These sorting options are found in the - <em>Options</em> menu. - </p> - <image file="tv_start_pid_sorted.gif"> - <icaption>The TV Main Window, tables sorted by owner PID.</icaption> - </image> - </section> - - <section> - <title>Changing the Current Node</title> - <p>By default, the Table Vizualizer will show tables residing on the node - it was started from. However, the user may easily view tables on other nodes. - By choosing the <em>Nodes</em> option, in the <em>File</em> menu, a window showing - all connected nodes will appear. Clicking on any of the nodes in the list will cause - the main window to immediately show the tables residing on the specified node: - </p> - <image file="tv_start_other_node.gif"> - <icaption>The Connected Nodes window, and the TV Main Window, showing tables on the selected node.</icaption> - </image> - </section> - - <section> - <title>Opening a Table in the Table Browser</title> - <p>Whenever a table shall be opened, the first step is to choose the corresponding - <em>Table Name</em> or <em>Table ID</em> cell. Secondly, the <em>Open Table</em> - menu item, in the <em>File</em> menu, has to be chosen. (Or, one may directly - double-click on a <em>Table Name</em> or <em>Table Id</em> cell.)</p> - <p>If the table selected table is readable, a window will appear after a short delay. This new - window is hereafter denoted the <em>Table Browser</em> window. Should the table be - unreadable, the Table Information window will appear instead (see further description - below). - </p> - - <section> - <title>The Table Browser Window</title> - <p>The Table Browser window consists of:</p> - <list type="bulleted"> - <item> - <p>a <em>menubar</em>.</p> - </item> - <item> - <p>a <em>toolbar</em> with buttons providing shortcuts to the menubar options. If the - cursor rests on any button, a so-called toolbar tip, explaining the button, - will appear. <br></br> - - (In the picture below, the cursor has lingered on the <em>Open Table</em> - button for a while.)</p> - </item> - <item> - <p>a <em>content and edit field</em>, showing the content of a specified row or cell. - Through this field the row, or cell, may also be edited (see below for a detailed - description).</p> - </item> - <item> - <p>a <em>grid</em>, i.e., a multicolumnar array, where the content of the - opened table will be shown. (As above, each square in the grid is called a cell.</p> - </item> - </list> - <image file="tv_table_browser.gif"> - <icaption>The Table Browser Window.</icaption> - </image> - <p>The successful appearance of the Table Browser window means that an image of - the selected table has been created in the TV. It is this image - that is shown in the Table Browser. - </p> - - <section> - <title>How Table Data Is Presented</title> - <p>Each object in the table is presented on a row of its own in the grid. - Each element in the object is presented in a cell of its own. <br></br> - - The colours on the <em>vertical</em> buttons to the left of the grid show the status - of the object on that very row: a bright red colour indicates that the object just - has been inserted (when the table is opened, all objects are regarded as being - just inserted), while a bright green colour indicates that the object has been - changed. The colour fades away, shade by shade, every time the actual table is polled, - until the normal background colour is encountered. <br></br> - - When an object has been deleted, the colour of the corresponding - <em>vertical button</em> turns to black. The next time the table is polled, the - object will be removed from the grid.</p> - <image file="tv_table_browser_updated.gif"> - <icaption>The Table Browser Window, with new, changed, and deleted objects.</icaption> - </image> - <p>Normally, new objects are placed at the end of the grid, while all other objects - maintain their positions between successive polls. However, when sorting mode has - been ordered, all objects, even new ones, are placed at the correct position - according to the sorting ordered (see also below).</p> - <p>Immediately above the <em>horizontal buttons</em>, one or more <em>keys</em> may - appear. These keys indicates which elements that are used as indices in the - ETS/Mnesia table, i.e., which fields that are used by ETS/Mnesia as search keys when - looking up data.</p> - <p>The grid columns may be resized, by clicking and dragging on the small black <em>resize areas</em> between any two horizontal buttons.</p> - <p>The rows are enumerated, as a help when navigating through the table. Note: it shall - not be assumed that these numbers correspond to the placement of the objects in the - <em>actual table</em>! The row numbers, as presented in the TV, are - only temporary, and only valid within the TV! - <br></br> - - The number on the <em>vertical scrollbar</em> corresponds to the number the - uppermost row has (or will have).</p> - <p>The number shown on the horizontal scrollbar relates to the leftmost column shown.</p> - </section> - - <section> - <title>How to Poll the Table</title> - <p>The table is polled whenever the <em>Poll Table</em> option in the <em>Options</em> - menu is chosen (or the <em>Poll Table</em> toolbar button is pressed). <br></br> - - The user may also choose to let the TV poll the table at regular - intervals. This is done via the <em>Set Poll Interval...</em> option in the - <em>Options</em> menu, which causes the <em>Set Poll Interval window</em> to appear. </p> - <p>In the Set Poll Interval window the user selects whether manual or automatic - polling shall be used, and, in the automatic polling case, the poll interval.</p> - <image file="set_poll_int.gif"> - <icaption>The Set Poll Interval Window.</icaption> - </image> - <p>It shall be noted that, in the case of a large table (or a slow computer/operating - system), a short poll interval may cause the TV to be flooded, i.e., the - data resulting from one poll has not been fully treated and presented when the data from - the next poll arrives. The user is therefore kindly requested to use the automatic - polling facility with care!</p> - </section> - - <section> - <title>How to Edit Objects in the Table</title> - <p>Provided that the table is writable for other processes than the owning process, - the user may insert, change and delete objects.</p> - <p>To <em>delete</em> an object, the corresponding row, or a single cell in the - corresponding row, has to be chosen, by clicking either on the vertical button - to the left of the row, or on a cell. Thereafter the <em>Delete Object</em> - option in the <em>Edit Menu</em> - is chosen. (Should the user regret the delete operation, the row may once again - be selected, whereupon the <em>Return</em> button simply is pressed.)</p> - <p>To <em>insert</em> an object, the user may use the <em>Record Editor</em>, or simply - enter the object in the content and edit field, and then press the <em>Return</em> - button. <br></br> - - The <em>Record Editor</em> is started via the <em>Edit Object</em> option in the - <em>Edit</em> menu, or via the <em>Edit Object</em> toolbar button. The editor that - appears looks different depending on the kind of table: for Mnesia tables, - a writable field is shown for each record entry, as well as the name of the entry. - For ETS tables, only a writable field is shown; this is due to the fact that the - size of the tuples inserted in ETS tables may vary, whereas the size of the records - inserted in a Mnesia table (more or less) is fixed. - One may select the next field in the record editor by pressing - the 'Tab' (or 'Arrow Down') button, and select the previous field by pressing - 'Shift'+'Tab' (or 'Arrow Up'). <br></br> - - When the editing is finished, the <em>OK</em> button may be clicked, or - 'Return' pressed. The TV will then try to insert the new object. - </p> - <image file="tv_record_editor_mnesia.gif"> - <icaption>The Record Editor (shown for a Mnesia table).</icaption> - </image> - <p>To <em>change</em> an already existing object, the corresponding row, or a single cell - in the corresponding row, has to be selected first (see below). Then one may edit the - whole object (or the selected field in the object), either using the record editor - or the content and edit field, whereupon 'Return' may be pressed (or the 'OK' button - clicked). - </p> - <p>It shall be noted that it is hard to edit objects containing - <em>process identifiers</em>, <em>references</em>, <em>binaries</em> and <em>ports</em>, - since it is only a textual representation of these terms that is shown on the screen. - It is in the general case impossible for the TV to correctly - convert this textual representation back to the original term. As a courtesy to - the user, an attempt to do this will nevertheless be done if the edited field - consists of a single process identifier; however, this conversion will only be - correct provided - that the process identifier originates from the current Erlang session. (On - the other hand, why on earth should any user want to store old process identifiers?) - </p> - <p>It shall also be noted that it may be more or less confusing to edit the table, - depending on whether the table type is <em>set</em>, <em>bag</em>, or - <em>duplicate_bag</em>, i.e., depending on whether or not objects having the - same key (or even duplicate objects) are allowed. Please study the ETS or Mnesia - manual pages, should confusion arise! - </p> - </section> - - <section> - <title>How to Search For Objects</title> - <p>One may search for an object, by choosing the <em>Search Object</em> - option in the <em>Options</em> menu (or by pressing the <em>Search Object</em> - toolbar button). In the <em>Search Object window</em> that appears, any valid - Erlang term or regular expression may be entered, whereupon all objects - containing (or consisting of) this term, or matching the regular expression, - will be shown.</p> - <image file="tv_search_window.gif"> - <icaption>The Search Object Window.</icaption> - </image> - <p>In the search result list, by clicking on any object, the Table Browser will - immediately scroll to the corresponding row in the table shown. This enables - the user to in a very powerful way quickly find the objects he's interested in.</p> - <image file="tv_search_result.gif"> - <icaption>The Search Object Window interworking with the Table Browser.</icaption> - </image> - </section> - - <section> - <title>How to Mark Table Data</title> - <p>One may mark a row or a column by clicking on the buttons to the left and above - the grid, respectively. A single cell is marked by clicking on it. Even empty - rows and columns may be marked; an empty cell cannot be marked - on the contrary, - by clicking on an empty cell, all marks are removed.</p> - <p>Marks are indicated by a cyan blue colour.</p> - <image file="tv_row_marked.gif"> - <icaption>The TV Main Window: a row has been marked.</icaption> - </image> - <p>When a row or a cell has been marked, the content will be shown in the content field, - together with an indication of the row (and column when applicable) the marked area - corresponds to. Should the object be very big, only a fraction of it may be shown in - this field. By clicking on the down-arrow button to the right of the content and - edit field, a pop-up content field will be shown, where the whole marked object - may be viewed. The content of this pop-up field may be marked and copied to - other windows; however, this field cannot be edited.</p> - <image file="tv_row_marked_popup.gif"> - <icaption>The Table Browser: the pop-up content field.</icaption> - </image> - <p>It shall be noted that the user may choose whether lists shall be shown as - strings or lists; this is done via the <em>View</em> menu. - </p> - <p>A marked column may be subject to sorting, see below. When sorting is ordered, - marks are removed at each polling of the table (because of the difficulties to - keep track of a certain object, or element, in this case).</p> - </section> - - <section> - <title>How to Sort Table Data</title> - <p>The image of the table may be sorted in rising or falling order, using any element as - sorting key. The element desired is chosen by marking the corresponding column, and - then choose (either via the <em>Options</em> menu, or via the toolbar buttons) any - of the sorting options available, i.e., sorting in ascending or descending order. - The colour of the column button will then change to gold, to indicate that this - column is the basis for the sorting currently chosen.</p> - <p>Should no column have been marked, when sorting is ordered, the first element in each - object (i.e, tuple) will be used as sorting key if the table is an ETS table; the - second element (i.e., the first field in the record) will be used if the table is a - Mnesia table.</p> - <p>Even columns with no elements in them may be subject to sorting. In this case the - whole object is used as the sorting key.</p> - <p>When sorting is ordered, new elements will be inserted according to the current - sorting mode. When the sorting is interrupted (via the <em>No Sorting</em> option), - the current image of the table keep the current order, but new elements will from - now on once again be inserted at the end of the image of the table.</p> - </section> - - <section> - <title>How to Obtain Table Information</title> - <p>Information about the actual table is obtained via the <em>File</em> menu (or via the - <em>Table Info</em> toolbar button). The information is printed in a separate window, - with similar pieces of information grouped together on "flap cards" of their own. - By clicking on a flap, the information on the corresponding card is made visible.</p> - <image file="info_window.gif"> - <icaption>The Table Information Window, showing information about a Mnesia table.</icaption> - </image> - <p>The Table Information window may also be opened from the TV Main - Window, by selecting a table and then choose the <em>Table Info</em> option - in the <em>File</em> menu (or by double-clicking on the <em>Table Size</em> - field.</p> - <p>Note: The Table Information window will automatically be opened if the user tries - to open an unreadable table, since this is the only information available in this - case.</p> - </section> - </section> - - <section> - <title>The Table Browser Menus</title> - <p>The Table Browser offers the following menus:</p> - <p></p> - - <section> - <title>The File Menu</title> - <taglist> - <tag><em>Table Info</em></tag> - <item> - <p>Opens the Table Information window, which shows the available information - about the current table. </p> - </item> - <tag><em>Close</em></tag> - <item> - <p>Closes the Table Browser window.</p> - </item> - </taglist> - </section> - - <section> - <title>The Edit Menu</title> - <taglist> - <tag><em>Edit Object...</em></tag> - <item> - <p>Opens the Record Editor. If an object is marked, it will be shown in - the Record Editor.</p> - </item> - <tag><em>Delete Object</em></tag> - <item> - <p>Deletes a marked object.</p> - </item> - </taglist> - </section> - - <section> - <title>The View Menu</title> - <taglist> - <tag><em>Lists As Lists</em></tag> - <item> - <p>Causes lists in the table to be shown as lists.</p> - </item> - <tag><em>Lists As Strings</em></tag> - <item> - <p>Causes lists in the table to be shown as strings.</p> - </item> - </taglist> - </section> - - <section> - <title>The Options Menu</title> - <taglist> - <tag><em>Poll Table</em></tag> - <item> - <p>An explicit order to poll the table, i.e., to scan the content.</p> - </item> - <tag><em>Poll Interval...</em></tag> - <item> - <p>Choose between manual and automatic polling. In the case of automatic - polling, the user gets the opportunity to choose the polling interval.</p> - </item> - <tag><em>Search Object</em></tag> - <item> - <p>Enables search for objects containing (or consisting of) a specified - Erlang term, or matching a regular pattern. The search result may be used - for quick navigation in the table.</p> - </item> - <tag><em>Sort Ascending Order</em></tag> - <item> - <p>Shows the table content sorted in ascending (i.e., rising) order. - New objects will be shown with correct placement as long the as the sorting - is going on. <br></br> - - Please note that it is only the image of the table that is affected, - <em>not</em> the table itself!</p> - </item> - <tag><em>Sort Descending Order</em></tag> - <item> - <p>Shows the table content sorted in descending (i.e., falling) order. - New objects will be shown with correct placement as long the as the - sorting is going on.</p> - </item> - <tag><em>No Sorting</em></tag> - <item> - <p>Sorting mode is left. New objects will be shown last in the - table. However, older objects will remain in the position they had when - the sorting mode was left, i.e., their placement will not reflect their - actual placement in the ETS/Mnesia table.</p> - </item> - </taglist> - </section> - - <section> - <title>The Help Menu</title> - <taglist> - <tag><em>Help</em></tag> - <item> - <p>Shows the help (about TV usage) that is available. - (The help will be shown in the Netscape Internet browser, if available.)</p> - </item> - <tag><em>OTP Documentation</em></tag> - <item> - <p>Shows the Documentation about all OTP components that is available - in the local installation of OTP.</p> - </item> - </taglist> - </section> - </section> - </section> - - <section> - <title>Tracing the Owner Process</title> - <p>The process owning the table may easily be traced, by selecting either - the <em>Owner Pid</em> or the <em>Owner Name</em> field, and then choosing - the <em>Trace Process</em> option in the <em>File</em> menu. <br></br> - - (It is also possible to double-click on any of these fields.)</p> - </section> - - <section> - <title>Creating a New Table</title> - <p>A new table may easily be created using the <em>New Table window</em>. - Currently only ETS tables may be created. Since ETS tables - dies together with the parent process, a special process, registered - as <em>tv_table_owner</em>, will be the owner of tables created this way. - This process will not be affected by any termination of the TV, - i.e., the ETS tables created will live on until they are explicitly killed. - </p> - <image file="tv_create_table.gif"> - <icaption>The New Table Window, enabling easy creation of ETS tables.</icaption> - </image> - <p>Note: the <em>tv_table_owner</em> is local to each node, meaning - that the creation of a table on a new node also will start such a process - on that node. This way only the tables on a specific node dies, should that - specific node crash.</p> - </section> - - <section> - <title>The TV Main Window Menus</title> - <p>The Main Window offers the following menus:</p> - <p></p> - - <section> - <title>The File Menu</title> - <taglist> - <tag><em>Open Table</em></tag> - <item> - <p>Open a selected table in a new Table Browser.</p> - </item> - <tag><em>New Table</em></tag> - <item> - <p>Open the New Table window, enabling easy creation of ETS tables.</p> - </item> - <tag><em>Table Info</em></tag> - <item> - <p>Opens the Table Information window, showing the available - information about a selected table. </p> - </item> - <tag><em>Nodes...</em></tag> - <item> - <p>Open the Connected Nodes window, enabling the user to view - tables residing on remote nodes.</p> - </item> - <tag><em>Trace Process</em></tag> - <item>Opens a trace window, where the process owning a selected table can - be traced.</item> - <tag><em>Exit</em></tag> - <item> - <p>Terminates the TV.</p> - </item> - </taglist> - </section> - - <section> - <title>The View Menu</title> - <taglist> - <tag><em>ETS Tables</em></tag> - <item> - <p>Shows ETS tables on the current node.</p> - </item> - <tag><em>Mnesia tables</em></tag> - <item> - <p>Shows Mnesia tables on the current node.</p> - </item> - </taglist> - </section> - - <section> - <title>The Options Menu</title> - <taglist> - <tag><em>Refresh</em></tag> - <item> - <p>An explicit order to once again check the current node for existing - tables, and list them.</p> - </item> - <tag><em>Unreadable Tables</em></tag> - <item> - <p>Option to choose whether or not unreadable tables shall be shown.</p> - </item> - <tag><em>System Tables</em></tag> - <item> - <p>Option to choose whether or not system tables shall be shown.</p> - </item> - <tag><em>Sort by Name</em></tag> - <item> - <p>Shows the tables sorted by their names.</p> - </item> - <tag><em>Sort by Id</em></tag> - <item> - <p>Shows the tables sorted by their table identifiers.</p> - </item> - <tag><em>Sort by Owner PID</em></tag> - <item> - <p>Shows the tables sorted by the process identifiers of the owning - processes.</p> - </item> - <tag><em>Sort by Owner Name</em></tag> - <item> - <p>Shows the tables sorted by the registered names of the owning processes.</p> - </item> - <tag><em>Error Messages in Haiku</em></tag> - <item> - <p>Option to choose whether or not error messages shall be shown - in the Japanes poetry style called <em>Haiku</em>.</p> - </item> - </taglist> - </section> - - <section> - <title>The Help Menu</title> - <taglist> - <tag><em>Help</em></tag> - <item> - <p>Shows the help (about TV usage) that is available. - (The help will be shown in the Netscape Internet browser, if available.)</p> - </item> - <tag><em>OTP Documentation</em></tag> - <item> - <p>Shows the Documentation about all OTP components that is available - in the local installation of OTP.</p> - </item> - </taglist> - </section> - </section> -</chapter> - - |