RSL Predicates

RSL Predicates. More...

Functions
int	globus_rsl_is_relation (globus_rsl_t *ast)
	RSL relation test. More...
int	globus_rsl_is_boolean (globus_rsl_t *ast)
	RSL boolean test. More...
int	globus_rsl_is_relation_eq (globus_rsl_t *ast)
	RSL equality operation test. More...
int	globus_rsl_is_relation_lessthan (globus_rsl_t *ast)
	RSL less than operation test. More...
int	globus_rsl_is_relation_attribute_equal (globus_rsl_t *ast, char *attribute)
	RSL attribute name test. More...
int	globus_rsl_is_boolean_and (globus_rsl_t *ast)
	RSL boolean and test. More...
int	globus_rsl_is_boolean_or (globus_rsl_t *ast)
	RSL boolean or test. More...
int	globus_rsl_is_boolean_multi (globus_rsl_t *ast)
	RSL boolean multi test. More...
int	globus_rsl_value_is_literal (globus_rsl_value_t *ast)
	RSL literal string test. More...
int	globus_rsl_value_is_sequence (globus_rsl_value_t *ast)
	RSL value sequence test. More...
int	globus_rsl_value_is_variable (globus_rsl_value_t *ast)
	RSL value variable test. More...
int	globus_rsl_value_is_concatenation (globus_rsl_value_t *ast)
	RSL value concatenation test. More...

Detailed Description

RSL Predicates.

The functions in this group return boolean values indicating whether an RSL syntax tree is of a particular type.

Function Documentation

globus_rsl_is_boolean()

int globus_rsl_is_boolean

(

globus_rsl_t *

ast

)

RSL boolean test.

The globus_rsl_is_boolean() function tests whether the the RSL pointed to by the ast parameter is a boolean composition of other RSL parse trees. The syntactically understood boolean compositions are "&" (conjunction), "|" (disjunction), and "+" (multi-request). Some bexamples of RSL booleans are

& ( "queue" = "debug") ( "max_time" = "10000")
| ("count" = "1")("count" = "10")
+ ( &("executable" = "1.exe") ) ( & ("executable" = "2.exe" )

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_boolean() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a boolean composition; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_boolean_and()

int globus_rsl_is_boolean_and

(

globus_rsl_t *

ast

)

RSL boolean and test.

The globus_rsl_is_boolean_and() function tests whether the the RSL pointed to by the ast parameter is a boolean "and" composition of RSL trees.

An example of a boolean and relation is

& ( "queue" = "debug" ) ( "executable" = "a.out" )

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_boolean_and() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a boolean and of RSL parse trees; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_boolean_multi()

int globus_rsl_is_boolean_multi

(

globus_rsl_t *

ast

)

RSL boolean multi test.

The globus_rsl_is_boolean_multi() function tests whether the the RSL pointed to by the ast parameter is a boolean "multi-request" composition of RSL trees.

An example of a boolean multie-request relation is

+ ( &( "executable" = "exe.1") ( "count" = "2" ) )
  ( &( "executable" =" exe.2") ( "count" = "2" ) )

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_boolean_multi() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a boolean multi-request of RSL parse trees; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_boolean_or()

int globus_rsl_is_boolean_or

(

globus_rsl_t *

ast

)

RSL boolean or test.

The globus_rsl_is_boolean_or() function tests whether the the RSL pointed to by the ast parameter is a boolean "or" composition of RSL trees.

An example of a boolean or relation is

| ( "count" = "2" ) ( "count" = "4" )

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_boolean_or() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a boolean and of RSL parse trees; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_relation()

int globus_rsl_is_relation

(

globus_rsl_t *

ast

)

RSL relation test.

The globus_rsl_is_relation() function tests whether the the RSL pointed to by the ast parameter is a relation. The RSL syntax supports the following relation operations:

=

Equal

!=

Not Equal

>

Greater Than

>=

Greater Than or Equal

<

Less Than

<=

Less Than or Equal

<=

Less Than or Equal

Some examples of RSL relations are

"queue" = "debug"
"queue" != "slow"
"min_memory" > "1000"
"max_wall_time" >= "60"
"count < "10"
"host_count" <= "5"

Note

GRAM only supports equality relations.

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_relation() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a relation; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_relation_attribute_equal()

int globus_rsl_is_relation_attribute_equal	(	globus_rsl_t *	ast,
		char *	attribute
	)

RSL attribute name test.

The globus_rsl_is_relation_attribute_equal() function tests whether the the RSL pointed to by the ast parameter is a relation with the attribute name which matches the string pointed to by the attribute parameter. This attribute name comparision is case-insensitive.

Parameters

ast	Pointer to an RSL parse tree structure.
attribute	Name of the attribute to test

Returns

The globus_rsl_is_relation_attribute_equal() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a relation and its attribute name matches the attribute parameter; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_relation_eq()

int globus_rsl_is_relation_eq

(

globus_rsl_t *

ast

)

RSL equality operation test.

The globus_rsl_is_relation_eq() function tests whether the the RSL pointed to by the ast parameter is an equality relation. An example of an equality relation is

"queue" = "debug"

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_relation_eq() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is an equality relation; otherwise, it returns GLOBUS_FALSE.

globus_rsl_is_relation_lessthan()

int globus_rsl_is_relation_lessthan

(

globus_rsl_t *

ast

)

RSL less than operation test.

The globus_rsl_is_relation_lessthan() function tests whether the the RSL pointed to by the ast parameter is a less-than relation. An example of a less-than relation is

"count" = "10"

Parameters

ast	Pointer to an RSL parse tree structure.

Returns

The globus_rsl_is_relation_lessthan() function returns GLOBUS_TRUE if the RSL parse tree pointed to by ast is a less-than relation; otherwise, it returns GLOBUS_FALSE.

globus_rsl_value_is_concatenation()

int globus_rsl_value_is_concatenation

(

globus_rsl_value_t *

ast

)

RSL value concatenation test.

The globus_rsl_value_is_concatenation() function tests whether the the RSL value pointed to by the ast parameter is a concatenation of RSL values. An example of an RSL value concatenation is

$( "GLOBUSRUN_GASS_URL" ) # "/input"

Parameters

ast	Pointer to an RSL value structure.

Returns

The globus_rsl_value_is_concatenation() function returns GLOBUS_TRUE if the RSL value pointed to by ast is a value concatenation; otherwise, it returns GLOBUS_FALSE.

globus_rsl_value_is_literal()

int globus_rsl_value_is_literal

(

globus_rsl_value_t *

ast

)

RSL literal string test.

The globus_rsl_value_is_literal() function tests whether the the RSL value pointed to by the ast parameter is a literal string value.

An example of a literal string is

"count"

Parameters

ast	Pointer to an RSL value structure.

Returns

The globus_rsl_value_is_literal() function returns GLOBUS_TRUE if the RSL value pointed to by ast is a literal string value; otherwise, it returns GLOBUS_FALSE.

globus_rsl_value_is_sequence()

int globus_rsl_value_is_sequence

(

globus_rsl_value_t *

ast

)

RSL value sequence test.

The globus_rsl_value_is_sequence() function tests whether the the RSL value pointed to by the ast parameter is a sequence of RSL values. An example of a sequence of values is

"1" "2" "3"

Parameters

ast	Pointer to an RSL value structure.

Returns

The globus_rsl_value_is_sequence() function returns GLOBUS_TRUE if the RSL value pointed to by ast is a value sequnce; otherwise, it returns GLOBUS_FALSE.

globus_rsl_value_is_variable()

int globus_rsl_value_is_variable

(

globus_rsl_value_t *

ast

)

RSL value variable test.

The globus_rsl_value_is_variable() function tests whether the the RSL value pointed to by the ast parameter is a variable reference. RSL values. An example of a variable reference is

$( "GLOBUSRUN_GASS_URL" )

Parameters

ast	Pointer to an RSL value structure.

Returns

The globus_rsl_value_is_sequence() function returns GLOBUS_TRUE if the RSL value pointed to by ast is a value sequnce; otherwise, it returns GLOBUS_FALSE.