Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

29 lines
837 B

#ifndef IARRAY_H
#define IARRAY_H
#include "uint64.h"
#include <stddef.h>
#include <pthread.h>
/* this is an indirect array; it only reallocs the indirect index, not
* the whole array. The actual data does not move. So there is no need
* to lock the array for read accesses. */
typedef struct {
char** pages;
size_t elemsize,pagefence,elemperpage,bytesperpage;
/* pagefence is the number of pages + 1,
* i.e. the first out of bounds index in "pages" */
pthread_mutex_t m;
} iarray;
void iarray_init(iarray* ia,size_t elemsize);
void* iarray_get(iarray* ia,size_t pos);
void* iarray_allocate(iarray* ia,size_t pos);
/* WARNING: do not use the array during or after iarray_free, make sure
* no threads are potentially doing anything with the iarray while it is
* being freed! */
void iarray_free(iarray* ia);
#endif