function lfds711_stack_query

Source Files

└───liblfds711
    ├───inc
    │   └───liblfds711
    │           lfds711_stack.h
    └───src
        └───lfds711_stack
                lfds711_stack_query.c

Enums

enum lfds711_stack_query
{
  LFDS711_STACK_QUERY_SINGLETHREADED_GET_COUNT,
  LFDS711_STACK_QUERY_SINGLETHREADED_VALIDATE
};

Opaque Structures

struct lfds711_stack_state;

Prototype

void lfds711_stack_query( struct lfds711_stack_state *ss,
                          enum lfds711_stack_query query_type,
                          void *query_input,
                          void *query_output );

Parameters

struct lfds711_stack_state *ss

A pointer to an initialized struct lfds711_stack_state.

enum lfds711_stack_query query_type

Indicates which query to perform.

void *query_input

A pointer to input data for the query, where the data varies by query;

LFDS711_STACK_QUERY_SINGLETHREADED_GET_COUNT

query_input is NULL.

LFDS711_STACK_QUERY_SINGLETHREADED_VALIDATE

query_input can be NULL, or or can be a pointer to a struct lfds711_misc_validation_info, which specifies an expected min/max count, in which case validation also counts the number of elements and check they fall within the specified range.

void *query_output

A pointer to output store for the query, where the output varies by query;

LFDS711_STACK_QUERY_SINGLETHREADED_GET_COUNT

Points to a lfds711_pal_uint_t, which is set to the number of elements in the tree.

LFDS711_STACK_QUERY_SINGLETHREADED_VALIDATE

Points to an enum lfds711_misc_validity, which is set to indicate the result of the validation operation.

Notes

All SINGLETHREADED queries can only be safely performed if no push or pop operations occur while the operation runs. If push or pop operations do occur during the execution of a SINGLETHREADED query, it is theoretically possible for the query to enter an infinite loop. Do not do this.

See Also

• Stack