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.\" Copyright: 2001 by Sun Microsystems, Inc.
.\"
.\" This man page was converted from the list_intro.txt version,
.\" which appeared to be the formatted version of a man page whose
.\" markup has been lost.
.\"
.de M \" man page reference
\\fI\\$1\\fR\\|(\\$2)\\$3
..
.\"
.TH list_intro 3 1995-06-13 xxRELxx "Grid Engine List Library"
.\"
.SH NAME
list_intro \- a library providing generic list functionality and database-like list management
.\"
.SH DESCRIPTION
The Grid Engine List Library provides the functionality of a generic
list. This means the list functions are applicable to every list
based on a number of certain basic types. List definitions are
extensible on a per-program basis as long as the old fields remain in
the list definition. [Note that the information here is probably outdated.]
.SH "LIBRARY FUNCTIONS"
The list library provides the following functions. See the
adoc-derived documentation for more information.
.SS "LIST FUNCTIONS"
.TP
.B lCreateList
Create a generic list
.TP
.B lFreeList
Free the memory allocated for a generic list and all its sublists
.TP
.B lCopyList
Copy a generic list with all its sublists and strings
.TP
.B lAddList
Concatenate two generic lists
.TP
.B lSortList
Sort a generic list
.TP
.B lDumpList
Dump a generic list to file
.TP
.B lUndumpList
Undump a generic list with all its data from file
.TP
.B lWriteList
Write a generic list to stdout
.TP
.B lGetListName
Return the name of a generic list
.TP
.B lGetListDescr
Return a pointer to the descriptor of a generic list
.TP
.B lGetNumberOfElem
Return the number of list elements contained in a generic list
.\"
.SS "LIST ELEMENT FUNCTIONS"
.TP
.B lCreateElem
Create a generic list element
.\" fixme: Garbled stuff from the original:
.\" strings and its
.\" frees the memory allocated for a generic list element, its
.\" sublists
.\"
.\" duplicate a list element with all its sublists and strings
.TP
.B lAppendElem
Append a list element to an existing list
.TP
.B lInsertElem
Insert a list element into an existing list after a specified element
.TP
.B lDechainElem
Dechain a list element from a list, the dechained element is not freed
.TP
.B lFindFirst
Find the first list element matching specified conditions
.TP
.B lFindNext
Find the next list element starting at a certain list element matching
specified conditions copy a list element partially (i.e. select
specific fields that will be copied)
.TP
.B lDumpElem
Dump a list element to file
.TP
.B lUndumpElem
Undump a list element from file into memory
.TP
.B lWriteElem
Write a list element to stdout
.\" fixme: garbled in original?
get the field position of a list element field with name 'nm'
.\"
.SS "FIELD ACCESS FUNCTIONS"
.TP
.BR lGetInt ,\ Lgetulong ,\ Lgetstring ,\ Lgetlist ,\ Lgetfloat ,\ Lgetdouble ,\ lGetChar ,\ lGetLong
Get the value of the specified type from a list element field; the
element and the field name are delivered as arguments
.TP
.BR lSetInt ,\ lSetUlong ,\ lSetString ,\ lSetList ,\ lSetFloat ,\ lSetDouble ,\ lSetChar ,\ lSetLong
Set the value of the specified type in a corresponding list element
field; the element, the field name and a new value are delivered as
arguments
.TP
.BR lGetPosInt ,\ lGetPosUlong ,\ lGetPosString ,\ lGetPosList ,\ lGetPosFloat ,\ lGetPosDouble ,\ lGetPosChar ,\ lGetPosLong
Get the value of the specified type in a corresponding
list element field; the element and the field position
are delivered as arguments
.TP
.BR lSetPosInt ,\ lSetPosUlong ,\ lSetPosString ,\ lSetPosList ,\ lSetPosFloat ,\ lSetPosDouble ,\ lSetPosChar ,\ lSetPosLong
Set the value of the specified type in a corresponding list element
field; the element, the field position and the new value are delivered
as arguments
.\"
.SS "LIST DESCRIPTOR FUNCTIONS"
.\"
.TP
.B lInit
Initialize the name to string conversion
.TP
.B lNm2Str
Convert an int value specifying a fieldname to its corresponding name
string
.TP
.B lCountDescr
Get the number of fields of a descriptor
.TP
.B lGetPosInDescr
Get the position of the field named 'nm' from the descriptor
.TP
.B lDumpDescr
Dump a list descriptor to a file
.TP
.B lUndumpDescr
Undump a list descriptor from a file to memory
.TP
.B lWriteDescr
Write a descriptor to stdout
.\"
.SS "LIST DATABASE FUNCTIONS"
.\"
.TP
.B lSelect
Select returns a list of elements that match the specified conditions.
.TP
.B lJoinSublist
Join a specified list with one of its sublists; one can specify
conditions for the list and the sublist. The joined list is returned
and the original list is unchanged.
.TP
.B lJoin
Join two lists which fulfill the specified conditions to a new list
that contains the enumerated fields. The joined list is returned and
the original lists are unaltered.
.TP
.B lWhere
Build a lCondition data structure which is used as condition for
various functions as lSelect or lJoin
.TP
.B lFreeWhere
Free a lCondition data structure
.TP
.B lWriteWhere
Write a lCondition data structure to stdout
.TP
.B lWhat
Build a lEnumeration data structure which is used to specify the
fields that are contained in a newly created list element
.TP
.B lFreeWhat
Free a lEnumeration data structure
.TP
.B lWriteWhat
Write a lEnumeration data structure to stdout
.TP
.B lCountWhat
Count the number of fields in a lEnumeration data structure
.\"
.SS "DATA STRUCTURES"
.\"
The following essential data structures are used by the various list
library functions.
.TP
.BI "lDescr *" descriptor
The descriptor contains the information which fields (name, type) are
contained in a list.
.TP
.BI "lList *" list
The lList pointer specifies a list created by lCreateList or any of
the other functions generating a list. Here the name of the list, a
reference to the descriptor, the number of contained list elements and
a reference to the first and last list element are stored.
.TP
.BI "lListElem *" list_element
The lListElem pointer is returned on creation of a new list element
and contains the actual data.
.TP
.BI "lConditionI *" conditions
The lCondition pointer is a representation of logically connected
compare operations. It serves to decide whether it should be operated
on a special list element.
.TP
.BI "lEnumeration *" field_enumerations
The lEnumeration pointer specifies which fields of a given list
element shall be involved in a specified action. It is possible under
certain circumstances to specify all fields or no field at all.
.TP
.BI "lSortOrder *" sorting_order
The lSortOrder pointer is used to specify sorting criteria for a
generic list. It is possible to declare combined sorting keys.
.\"
.SH "COPYRIGHT"
See
.M xxqs_name_sxx_intro 1
for a full statement of rights and permissions.
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