72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
#ifndef LIBABACUS_REF_VEC_H
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#define LIBABACUS_REF_VEC_H
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#include "refcount.h"
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#include "result.h"
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#include <stdlib.h>
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#define LIBABACUS_REF_VEC_INITIAL_SIZE 4
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/**
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* A vector of reference counter pointers.
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*/
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struct libab_ref_vec_s {
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/*
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* The capacity of the vector (how many elements
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* can be stored inside).
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*/
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size_t capacity;
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/**
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* The number of elements inside the vector.
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*/
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size_t size;
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/**
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* The array of references.
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*/
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libab_ref* data;
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};
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typedef struct libab_ref_vec_s libab_ref_vec;
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/**
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* Initializes a new vector.
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* @param vec the vector to initialize.
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* @return the result of the initialization.
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*/
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libab_result libab_ref_vec_init(libab_ref_vec* vec);
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/**
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* Inserts an existing reference counted value into the vector.
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* This bumps the reference's refcount, thereby preventing its
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* deallocation.
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* @param vec the vector to insert into.
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* @param data the reference to insert.
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* @return the result of the insertion.
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*/
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libab_result libab_ref_vec_insert(libab_ref_vec* vec, libab_ref* data);
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/**
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* Inserts an allocated value into the vector after wrapping it in a reference.
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* @param vec the vector to insert into.
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* @param data the value to convert to a refcounted pointer.
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* @param free_func the function called to release the value (besides free)
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* @return the result of the insertion.
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*/
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libab_result libab_ref_vec_insert_value(libab_ref_vec* vec, void* data,
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void (*free_func)(void*));
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/**
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* Returns the value at the given index in the vector, or null or the value
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* doesn't exist.
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* @param vec the vector to get a value from.
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* @param index the index to look at.
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* @param into the reference to store the result value into.
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* @return the reference stored at the given index.
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*/
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void libab_ref_vec_index(libab_ref_vec* vec, size_t index, libab_ref* into);
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/**
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* Releases the memory allocated by the vector.
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* The references stored in the vector have their refcount decreased.
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* @param vec the vector to free.
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*/
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void libab_ref_vec_free(libab_ref_vec* vec);
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#endif
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