owntone-server/src/daap_query.h

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#ifndef __DAAP_QUERY_H__
#define __DAAP_QUERY_H__
#include <stdint.h>
#include "logger.h"
#include "misc.h"
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struct dmap_query_field_map {
uint32_t hash;
int as_int;
char *dmap_field;
char *db_col;
};
struct dmap_query_field_map *
daap_query_field_lookup(char *field);
char *
daap_query_parse_sql(const char *daap_query);
int
daap_query_init(void);
void
daap_query_deinit(void);
static inline int64_t
daap_songalbumid(const char *album_artist, const char *album)
{
/* album_artist & album are both VARCHAR(1024) + 2 chars + NUL */
char hashbuf[2052];
uint64_t hash;
int ret;
ret = snprintf(hashbuf, sizeof(hashbuf), "%s==%s", (album_artist) ? album_artist : "", (album) ? album : "");
if ((ret < 0) || (ret >= sizeof(hashbuf)))
{
DPRINTF(E_WARN, L_DAAP, "Not enough room for album_artist==album concatenation\n");
return 0;
}
/* Limit hash length to 63 bits, due to signed type in sqlite */
hash = murmur_hash64(hashbuf, ret, 0);
return hash >> 1;
}
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#endif /* !__DAAP_QUERY_H__ */