152 lines
3.1 KiB
C
152 lines
3.1 KiB
C
#include "Eina.h"
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#include "eina_private.h"
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/*============================================================================*
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* Local *
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*============================================================================*/
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static Eina_List *_modules;
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static int _init_count = 0;
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struct _Eina_Mempool
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{
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#ifdef DEBUG
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unsigned int magic;
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#endif
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Eina_Module *module;
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Eina_Mempool_Backend *backend;
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void *backend_data;
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};
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static Eina_Mempool * _new_from_buffer(const char *name, void *buffer,
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unsigned int size, const char *options, va_list args)
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{
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Eina_List *l;
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/* load the module with filename == name */
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for (l = _modules; l; l = eina_list_next(l))
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{
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Eina_Module *m;
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m = eina_list_data(l);
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/* check if the requested module name exists */
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if (!strncmp(eina_module_name_get(m), name, strlen(name)))
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{
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Eina_Mempool *mp;
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mp = malloc(sizeof(Eina_Mempool));
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eina_module_load(m);
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mp->module = m;
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mp->backend = eina_module_symbol_get(m, "mp_backend");
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mp->backend_data = mp->backend->init(buffer, size, options, args);
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return mp;
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}
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}
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return NULL;
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}
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/*============================================================================*
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* API *
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*============================================================================*/
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/**
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*
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*/
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EAPI int eina_mempool_init(void)
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{
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if (!_init_count)
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{
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_modules = eina_module_list_get("/usr/local/lib/eina/mm_policies", 0, NULL, NULL);
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}
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/* get all the modules */
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return ++_init_count;
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}
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/**
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*
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*/
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EAPI int eina_mempool_shutdown(void)
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{
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if (!_init_count)
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return _init_count;
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_init_count--;
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if (!_init_count)
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{
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/* remove the list of modules */
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eina_module_list_free(_modules);
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}
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return _init_count;
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}
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/**
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*
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*/
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EAPI Eina_Mempool * eina_mempool_new_from_buffer(const char *name, void *buffer,
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unsigned int size, const char *options, ...)
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{
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Eina_Mempool *mp;
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va_list args;
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assert(name);
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assert(buffer);
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va_start(args, options);
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mp = _new_from_buffer(name, buffer, size, options, args);
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va_end(args);
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return mp;
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}
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/**
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*
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*/
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EAPI Eina_Mempool * eina_mempool_new(const char *name, unsigned int size, const char
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*options, ...)
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{
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Eina_Mempool *mp;
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void *buffer;
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va_list args;
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assert(name);
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buffer = malloc(sizeof(char) * size);
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va_start(args, options);
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mp = _new_from_buffer(name, buffer, size, options, args);
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va_end(args);
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return mp;
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}
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/**
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*
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*/
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EAPI void eina_mempool_delete(Eina_Mempool *mp)
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{
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Eina_List *l;
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assert(mp);
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mp->backend->shutdown(mp->backend_data);
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eina_module_unload(mp->module);
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free(mp);
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}
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/**
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*
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*/
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EAPI void * eina_mempool_realloc(Eina_Mempool *mp, void *element, unsigned int size)
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{
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}
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/**
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*
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*/
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EAPI void * eina_mempool_alloc(Eina_Mempool *mp, unsigned int size)
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{
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assert(mp);
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assert(mp->backend->alloc);
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return mp->backend->alloc(mp->backend_data, size);
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}
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/**
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*
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*/
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EAPI void eina_mempool_free(Eina_Mempool *mp, void *element)
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{
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assert(mp);
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assert(mp->backend->free);
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mp->backend->free(mp->backend_data, element);
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}
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