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globus_fifo(3) globus_common globus_fifo(3)

NAME

globus_fifo - FIFO Queue


- FIFO Queue Implementation.

SYNOPSIS

Typedefs


typedef struct globus_fifo_s * globus_fifo_t

Functions


int globus_fifo_init (globus_fifo_t *fifo)
Initialize the fifo structure. void globus_fifo_destroy (globus_fifo_t *fifo)
void globus_fifo_destroy_all (globus_fifo_t *fifo, void(*datum_free)(void *))
int globus_fifo_empty (const globus_fifo_t *fifo)
int globus_fifo_size (const globus_fifo_t *fifo)
int globus_fifo_enqueue (globus_fifo_t *fifo, void *datum)
globus_fifo_t * globus_fifo_copy (const globus_fifo_t *fifo)
void * globus_fifo_peek (globus_fifo_t *fifo)
void * globus_fifo_tail_peek (globus_fifo_t *fifo)
void * globus_fifo_remove (globus_fifo_t *headp, void *datum)
void * globus_fifo_dequeue (globus_fifo_t *fifo)
int globus_fifo_move (globus_fifo_t *fifo_dest, globus_fifo_t *fifo_src)
globus_list_t * globus_fifo_convert_to_list (globus_fifo_t *fifo)

Detailed Description

FIFO Queue Implementation.

Typedef Documentation

typedef struct globus_fifo_s* globus_fifo_t

Data type used in all function calls to manipulate a Globus FIFO

Function Documentation

globus_list_t* globus_fifo_convert_to_list (globus_fifo_t * fifo)

Convert the fifo into a list.

globus_fifo_t* globus_fifo_copy (const globus_fifo_t * fifo)

Make a copy of the fifo. globus_fifo_destroy() must be called the returned pointer to free memory associated with it.

void* globus_fifo_dequeue (globus_fifo_t * fifo)

dequeue the element at the front of the queue.

void globus_fifo_destroy (globus_fifo_t * fifo)

Destroy the fifo data structure.

This function destroys the memory associate with the fifo data structure. For every call to globus_fifo_init() there must be a corresponding call to globus_fifo_destroy()

void globus_fifo_destroy_all (globus_fifo_t * fifo, void(*)(void *) datum_free)

Destroy the fifo data structure.

This function destroys the memory associate with the fifo data structure. It calls datum_free() on behalf of all remaining nodes in the queue. For every call to globus_fifo_init() there must be a corresponding call to globus_fifo_destroy()

int globus_fifo_empty (const globus_fifo_t * fifo)

This function returns a boolean indicating whether or not the fifo is empty.

int globus_fifo_enqueue (globus_fifo_t * fifo, void * datum)

Add data to the back of the queue.

int globus_fifo_init (globus_fifo_t * fifo)

Initialize the fifo structure. This function initializes the fifo data structure. The structure must be initialized before it can be used with any other function.

int globus_fifo_move (globus_fifo_t * fifo_dest, globus_fifo_t * fifo_src)

Move the queue from fifo_src pointer to fifo_dest pointer.

void* globus_fifo_peek (globus_fifo_t * fifo)

get a pointer to the element at the front of the queue.

void* globus_fifo_remove (globus_fifo_t * headp, void * datum)

remove datum from anywhere in the queue.

int globus_fifo_size (const globus_fifo_t * fifo)

This function returns a integer representing the number of elements in the queue.

void* globus_fifo_tail_peek (globus_fifo_t * fifo)

Get a pointer to the element at the back of the queue.

Author

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Tue Jul 5 2022 Version 18.13