blob: 69849c939b2e8053ebfbb1249b13a7d6518a0ac9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
#ifndef DEF_EARRAY_H
#define DEF_EARRAY_H
#include <sched.h>
/*
* This class implements a simple extensible array structure.
* An entry with a 0 value is considered free and can be allocated.
* The array will free as much space when elements are removed.
* The array will ALWAYS have array->data = 0 when uninitialized, !=0 when initialized and in use
* To initialize an earray:
* - allocate the struct earray
* - set its ref_vect_init_len and vect_len to desired values
* - set its data to 0
* - all the rest doesn't matter
* - call earray_init
* Freeing an array does not free the struct earray, only the data it references.
*/
struct earray {
int ref_vect_init_len;
int vect_len; // NEVER CHANGE THIS AFTER INITIALISATION!!!!
int ref_vect_len;
int elements;
void ***data;
mutex_t mutex;
};
void earray_init(struct earray *array);
void earray_free(struct earray *earray); // frees everything
int earray_add(struct earray *array, void* ptr); // return element number or -1 if fail
void *earray_at(struct earray *array, int num); // returns 0 when nothing
void earray_set(struct earray *earray, int num, void* ptr);
#endif
|
