hm::utl Class Reference

#include <health_monitor_util.h>

Public Member Functions
	utl ()=delete

Static Public Member Functions
static double	percent (double part, double whole)
	Compute (part / whole) * 100, clamped to [0, 100]. More...
static double	change_percent (uint64_t previous, uint64_t current)
	Return the absolute percentage change, or zero without a baseline. More...
static bool	stoi (const std::string &s, int &result)
	Safe conversion functions. More...
static bool	stoul (const std::string &s, uint64_t &result)
static bool	stoll (const std::string &s, int64_t &result)
static bool	stod (const std::string &s, double &result)
static std::string	trim (const std::string &s)
static int	convert_timestamp (const std::string &ts_str, time_t &result)
	Convert a Unix-style timestamp to time_t. More...

Constructor & Destructor Documentation

utl()

hm::utl::utl ( )

delete

Member Function Documentation

change_percent()

static double hm::utl::change_percent ( uint64_t  previous, uint64_t  current  )

inlinestatic

Return the absolute percentage change, or zero without a baseline.

convert_timestamp()

int hm::utl::convert_timestamp ( const std::string &  ts_str, time_t &  result  )

static

Convert a Unix-style timestamp to time_t.

Parameters

[in]	ts_str	Unix timestamp string, e.g. "2022-01-01 12:00:00"
[out]	result	Converted timestamp

Returns

0 on success, non-zero otherwise

percent()

double hm::utl::percent ( double  part, double  whole  )

static

Compute (part / whole) * 100, clamped to [0, 100].

Parameters

part	The numerator (e.g. MB used)
whole	The denominator (e.g. MB available)

Returns

Percentage in range [0.0, 100.0]

stod()

bool hm::utl::stod ( const std::string &  s, double &  result  )

static

stoi()

bool hm::utl::stoi ( const std::string &  s, int &  result  )

static

Safe conversion functions.

Parameters

s	The input string to be converted
result	Result of the conversion

Returns

false if successful, true otherwise

Note

The functions check if the entire string is consumed during the conversion. If the string is empty or contains non-numeric characters, the function returns true.

stoll()

bool hm::utl::stoll ( const std::string &  s, int64_t &  result  )

static

stoul()

bool hm::utl::stoul ( const std::string &  s, uint64_t &  result  )

static

trim()

std::string hm::utl::trim ( const std::string &  s )

static

---

The documentation for this class was generated from the following files:

• components/health_monitor/health_monitor_util.h
• components/health_monitor/health_monitor_util.cc