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#ifndef __ROARINGBITMAP_H__
#define __ROARINGBITMAP_H__
/* Created by ZEROMAX on 2017/3/20.*/
#include "postgres.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "fmgr.h"
#include "catalog/pg_type.h"
#include "utils/builtins.h"
#include "utils/array.h"
#include "utils/bytea.h"
#include "utils/memutils.h"
#include "utils/guc.h"
#include "lib/stringinfo.h"
#include "funcapi.h"
#include "libpq/pqformat.h"
/* must include "roaring.h" before redefine malloc functions */
#include "roaring.h"
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
bool ArrayContainsNulls(ArrayType *array);
/* useful macros for accessing int4 arrays */
#define ARRPTR(x) ( (int *) ARR_DATA_PTR(x) )
#define ARRNELEMS(x) ArrayGetNItems(ARR_NDIM(x), ARR_DIMS(x))
/* reject arrays we can't handle; to wit, those containing nulls */
#define CHECKARRVALID(x) \
do { \
if (ARR_HASNULL(x) && ArrayContainsNulls(x)) \
ereport(ERROR, \
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), \
errmsg("array must not contain nulls"))); \
} while(0)
#define ARRISEMPTY(x) (ARRNELEMS(x) == 0)
/* Malloc a buffer of size + alignment bytes and returns the aligned part.
The offset between the real pointer and returned value was stored in p[-1].
*/
static inline void *pg_aligned_malloc(size_t alignment, size_t size) {
void *p;
void *porg;
assert(alignment <= 256);
porg = palloc(size + alignment);
p = (void *)((((size_t)porg + alignment) / alignment) * alignment);
*((unsigned char *)p-1) = (unsigned char)((size_t)p - (size_t)porg);
return p;
}
static inline void pg_aligned_free(void *memblock) {
void *porg;
if (memblock == NULL)
return;
porg = (void *)((size_t)memblock - *((unsigned char *)memblock-1));
if (porg == memblock)
porg = (void *)((size_t)porg - 256);
pfree(porg);
}
static inline void *pg_calloc(size_t nmemb, size_t size) {
return palloc0(nmemb * size);
}
static inline void pg_free(void *ptr) {
if (ptr == NULL) {
free(ptr);
} else {
pfree(ptr);
}
}
static inline void *pg_realloc(void *ptr, size_t size) {
return ptr == NULL ? palloc(size) : repalloc(ptr, size);
}
#include "roaring.c"
#include "roaring_buffer_reader.c"
#endif
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