RSL Predicates

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

Functions


Detailed Description

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

Function Documentation

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"

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.


about globus | globus toolkit | dev.globus

Comments? webmaster@globus.org