#ifndef ZABBIX_ZBXTRENDS_H
#define ZABBIX_ZBXTRENDS_H
int zbx_trends_parse_base(const char *params, zbx_time_unit_t *base, char **error);
int zbx_trends_parse_timeshift(time_t from, const char *timeshift, struct tm *tm, char **error);
int zbx_trends_parse_range(time_t from, const char *param, int *start, int *end, char **error);
int zbx_trends_parse_nextcheck(time_t from, const char *period_shift, time_t *nextcheck, char **error);
int zbx_trends_eval_avg(const char *table, zbx_uint64_t itemid, int start, int end, double *value, char **error);
int zbx_trends_eval_count(const char *table, zbx_uint64_t itemid, int start, int end, double *value, char **error);
int zbx_trends_eval_max(const char *table, zbx_uint64_t itemid, int start, int end, double *value, char **error);
int zbx_trends_eval_min(const char *table, zbx_uint64_t itemid, int start, int end, double *value, char **error);
int zbx_trends_eval_sum(const char *table, zbx_uint64_t itemid, int start, int end, double *value, char **error);
zbx_uint64_t requests_num;
int zbx_tfc_init(zbx_uint64_t cache_size, char **error);
void zbx_tfc_destroy(void);
int zbx_tfc_get_stats(zbx_tfc_stats_t *stats, char **error);
void zbx_tfc_invalidate_trends(ZBX_DC_TREND *trends, int trends_num);
int zbx_baseline_get_data(zbx_uint64_t itemid, unsigned char value_type, time_t now, const char *period,
int season_num, zbx_time_unit_t season_unit, int skip, zbx_vector_dbl_t *values,
zbx_vector_uint64_t *index, char **error);