beats.h

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#pragma once
#include <stdbool.h>
#include <stdint.h>
 
// shared time constants for the .beats clock and the BMT conversion
#define MS_PER_BEAT      86400     
#define MS_PER_DAY       86400000  
#define MS_PER_SEC       1000      
#define SECS_PER_DAY     86400     
#define SECS_PER_HOUR    3600      
#define SECS_PER_MIN     60        
#define BMT_UTC_OFFSET_S 3600      

#define BEATS_TOKEN     "{B}"
#define BEATS_TOKEN_LEN 3          


int beats_from_ms(int32_t ms_into_bmt_day);

uint32_t ms_until_next_beat(int32_t ms_into_bmt_day);

int32_t beats_ms_from_hms(int hour, int minute, int second, uint16_t ms);

bool beats_has_token(const char *format);

void beats_expand_token(char *text, int beats);