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#ifndef __MCACHE_H__
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#define __MCACHE_H__
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#include <stdint.h>
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#include <time.h>
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#include <sys/types.h>
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#include <pthread.h>
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#include <tdata/usrtc.h>
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#include <tdata/idx_allocator.h>
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#define _MCACHE_MAGIC 0xabcdbeef
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#define _MPG_SIZE 4096
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#define _MCACHE_EMINSIZE sizeof(unsigned long) + 8
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#define _MCACHE_EMAXSIZE sizeof(unsigned long) + 224
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#define _MCACHE_PREALLOC (1 << 1) /* preallocate elements on initialization */
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#define _MCACHE_ALLOCAHEAD (1 << 2) /* allocate more ahead */
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#define _MCACHE_MEMFREE (1 << 3) /* free as possible */
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/* this structure used to store info on page, and located
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* at the beginning of the allocated page
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*/
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struct _mpg {
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void *addr;
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unsigned int use;
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usrtc_node_t node;
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} __attribute__((packed));
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typedef struct __sntl_mcache_ {
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unsigned int magic; /** < first 32bit to check it */
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usrtc_t pg_tree; /** < pages tree */
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size_t esize; /** < element size*/
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pthread_rwlock_t lock; /** < thread safe cap */
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usrtc_t allocated; /** < allocated elements to increase allocation */
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usrtc_t used; /** < used ones */
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unsigned int epc; /** < elements per cache page */
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int flags; /** < flags of the cache */
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} sntl_mcache_t;
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int sntl_mcache_init(sntl_mcache_t*, size_t, int);
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void* sntl_mcache_alloc(sntl_mcache_t*);
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void sntl_mcache_free(void*);
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void sntl_mcache_destroy(sntl_mcache_t*);
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#endif /* __MCACHE_H__ */
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