libvieter/include/vieter_cat_heap.h

49 lines
1.3 KiB
C

#ifndef VIETER_CAT_HEAP
#define VIETER_CAT_HEAP
#include <stdint.h>
typedef struct vieter_cat_heap vieter_cat_heap;
typedef enum vieter_cat_heap_error {
vieter_cat_heap_ok = 0,
vieter_cat_heap_arch_empty = 1,
vieter_cat_heap_arch_not_found = 2
} vieter_cat_heap_error;
vieter_cat_heap *vieter_cat_heap_init();
void vieter_cat_heap_free(vieter_cat_heap **ptp);
uint64_t vieter_cat_heap_size(vieter_cat_heap *cheap);
vieter_cat_heap_error vieter_cat_heap_insert(vieter_cat_heap *cheap,
char *category, uint64_t key,
void *data);
vieter_cat_heap_error vieter_cat_heap_pop(void **out, vieter_cat_heap *cheap,
char *category);
vieter_cat_heap_error vieter_cat_heap_peek(void **out, vieter_cat_heap *cheap,
char *category);
/*
* Acquire a read lock on the heap. Return value is the result of
* pthread_rwlock_rdlock.
*/
int vieter_cat_heap_rlock(vieter_cat_heap *cheap);
/*
* Acquire a write lock on the heap. Return value is the result of
* pthread_rwlock_wrlock.
*/
int vieter_cat_heap_wlock(vieter_cat_heap *cheap);
/*
* Unlock the lock after having acquired it. Return value is the result of
* pthread_rwlock_unlock.
*/
int vieter_cat_heap_unlock(vieter_cat_heap *cheap);
#endif