time_api.h

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/*
    MIT License
 
    Copyright (c) 2025 Robin A. Onsay
 
    Permission is hereby granted, free of charge, to any person obtaining
    a copy of this software and associated documentation files
    (the "Software"), to deal in the Software without restriction,
    including without limitation the rights to use, copy, modify, merge,
    publish, distribute, sublicense, and/or sell copies of the Software,
    and to permit persons to whom the Software is furnished to do so,
    subject to the following conditions:
 
    The above copyright notice and this permission notice shall be
    included in all copies or substantial portions of the Software.
*/
#ifndef JUNO_TIME_API_H
#define JUNO_TIME_API_H
#include "juno/macros.h"
#include "juno/status.h"
#include "juno/module.h"
#include "juno/types.h"
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C"
{
#endif
 
typedef struct JUNO_TIME_API_TAG JUNO_TIME_API_T;
typedef struct JUNO_TIME_ROOT_TAG JUNO_TIME_ROOT_T;
typedef struct JUNO_TIMESTAMP_TAG JUNO_TIMESTAMP_T;
 
typedef uint32_t JUNO_TIME_SECONDS_T;
typedef uint64_t JUNO_TIME_MILLIS_T;
typedef uint64_t JUNO_TIME_MICROS_T;
typedef uint64_t JUNO_TIME_NANOS_T;
typedef uint32_t JUNO_TIME_SUBSECONDS_T;
 
struct JUNO_TIME_ROOT_TAG JUNO_MODULE_ROOT(JUNO_TIME_API_T, JUNO_MODULE_EMPTY);
 
struct JUNO_TIMESTAMP_TAG
{
    JUNO_TIME_SECONDS_T iSeconds;
    JUNO_TIME_SUBSECONDS_T iSubSeconds;
};
 
JUNO_MODULE_RESULT(JUNO_TIMESTAMP_RESULT_T, JUNO_TIMESTAMP_T);
JUNO_MODULE_RESULT(JUNO_TIME_SECONDS_RESULT_T, JUNO_TIME_SECONDS_T);
JUNO_MODULE_RESULT(JUNO_TIME_MILLIS_RESULT_T, JUNO_TIME_MILLIS_T);
JUNO_MODULE_RESULT(JUNO_TIME_MICROS_RESULT_T, JUNO_TIME_MICROS_T);
JUNO_MODULE_RESULT(JUNO_TIME_NANOS_RESULT_T, JUNO_TIME_NANOS_T);
JUNO_MODULE_RESULT(JUNO_TIME_SUBSECONDS_RESULT_T, JUNO_TIME_SUBSECONDS_T);
 
struct JUNO_TIME_API_TAG
{
    JUNO_TIMESTAMP_RESULT_T (*Now)(const JUNO_TIME_ROOT_T *ptTime);
    JUNO_STATUS_T (*AddTime)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T *ptRetTime, JUNO_TIMESTAMP_T tTimeToAdd);
    JUNO_STATUS_T (*SubtractTime)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T *ptRetTime, JUNO_TIMESTAMP_T tTimeToSubtract);
    JUNO_STATUS_T (*SleepTo)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTimeToWakeup);
    JUNO_STATUS_T (*Sleep)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tDuration);
    JUNO_TIME_NANOS_RESULT_T (*TimestampToNanos)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
    JUNO_TIME_MICROS_RESULT_T (*TimestampToMicros)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
    JUNO_TIME_MILLIS_RESULT_T (*TimestampToMillis)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
    JUNO_TIMESTAMP_RESULT_T (*NanosToTimestamp)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_NANOS_T iNanos);
    JUNO_TIMESTAMP_RESULT_T (*MicrosToTimestamp)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_MICROS_T iMicros);
    JUNO_TIMESTAMP_RESULT_T (*MillisToTimestamp)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_MILLIS_T iMillis);
    JUNO_RESULT_F64_T (*TimestampToDouble)(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTimestamp);
    JUNO_TIMESTAMP_RESULT_T (*DoubleToTimestamp)(const JUNO_TIME_ROOT_T *ptTime, double dTimestamp);
};
 
 
JUNO_STATUS_T JunoTime_AddTime(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T *ptRetTime, JUNO_TIMESTAMP_T tTimeToAdd);
 
JUNO_STATUS_T JunoTime_SubtractTime(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T *ptRetTime, JUNO_TIMESTAMP_T tTimeToSubtract);
 
JUNO_TIME_NANOS_RESULT_T JunoTime_TimestampToNanos(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
JUNO_TIME_MICROS_RESULT_T JunoTime_TimestampToMicros(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
JUNO_TIME_MILLIS_RESULT_T JunoTime_TimestampToMillis(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTime);
 
JUNO_TIMESTAMP_RESULT_T JunoTime_NanosToTimestamp(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_NANOS_T iNanos);
JUNO_TIMESTAMP_RESULT_T JunoTime_MicrosToTimestamp(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_MICROS_T iMicros);
JUNO_TIMESTAMP_RESULT_T JunoTime_MillisToTimestamp(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIME_MILLIS_T iMillis);
 
JUNO_RESULT_F64_T JunoTime_TimestampToDouble(const JUNO_TIME_ROOT_T *ptTime, JUNO_TIMESTAMP_T tTimestamp);
JUNO_TIMESTAMP_RESULT_T JunoTime_DoubleToTimestamp(const JUNO_TIME_ROOT_T *ptTime, double dTimestamp);
 
#define JunoTime_TimeApiInit(Now, SleepTo, Sleep) \
{ \
    Now, \
    JunoTime_AddTime, \
    JunoTime_SubtractTime, \
    SleepTo, \
    Sleep, \
    JunoTime_TimestampToNanos, \
    JunoTime_TimestampToMicros, \
    JunoTime_TimestampToMillis, \
    JunoTime_NanosToTimestamp, \
    JunoTime_MicrosToTimestamp, \
    JunoTime_MillisToTimestamp, \
    JunoTime_TimestampToDouble, \
    JunoTime_DoubleToTimestamp, \
}
 
static inline bool JunoTime_TimestampGreaterThan(JUNO_TIMESTAMP_T tLeft, JUNO_TIMESTAMP_T tRight)
{
    return (tLeft.iSeconds > tRight.iSeconds) || (tLeft.iSeconds == tRight.iSeconds && tLeft.iSubSeconds > tRight.iSubSeconds);
}
 
static inline bool JunoTime_TimestampLessThan(JUNO_TIMESTAMP_T tLeft, JUNO_TIMESTAMP_T tRight)
{
    return (tLeft.iSeconds < tRight.iSeconds) || (tLeft.iSeconds == tRight.iSeconds && tLeft.iSubSeconds < tRight.iSubSeconds);
}
 
static inline bool JunoTime_TimestampEquals(JUNO_TIMESTAMP_T tLeft, JUNO_TIMESTAMP_T tRight)
{
    return (tLeft.iSeconds == tRight.iSeconds) && (tLeft.iSubSeconds == tRight.iSubSeconds);
}
 
static inline JUNO_STATUS_T JunoTime_TimeInit(JUNO_TIME_ROOT_T *ptTime, const JUNO_TIME_API_T *ptApi, JUNO_FAILURE_HANDLER_T pfcnFailureHandler, JUNO_USER_DATA_T *pvUserData)
{
    JUNO_ASSERT_EXISTS(ptTime);
    ptTime->ptApi = ptApi;
    ptTime->_pfcnFailureHandler = pfcnFailureHandler;
    ptTime->_pvFailureUserData = pvUserData;
    return JUNO_STATUS_SUCCESS;
}
 
#ifdef __cplusplus
}
#endif
#endif // JUNO_TIME_API_H