sys_info.h File Reference

System Resource Monitoring Utilities. More...

#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>

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Functions
uint64_t	cwist_get_available_ram (void)
	Get the available (free + reclaimable) system RAM in bytes.
bool	cwist_is_ram_critical (uint64_t threshold_bytes)
	Check if system RAM is critically low.

Detailed Description

System Resource Monitoring Utilities.

Definition in file sys_info.h.

Function Documentation

cwist_get_available_ram()

uint64_t cwist_get_available_ram

(

void

)

Get the available (free + reclaimable) system RAM in bytes.

Uses /proc/meminfo on Linux. Uses sysctl on BSD/macOS.

Returns

Available RAM in bytes, or 0 if detection fails.

Get the available (free + reclaimable) system RAM in bytes.

Returns

Conservative mock availability used when no platform-specific API exists.

Definition at line 90 of file sys_info.c.

References CWIST_GIB.

Referenced by cwist_is_ram_critical(), and cwist_nuke_init().

cwist_is_ram_critical()

bool cwist_is_ram_critical

(

uint64_t

threshold_bytes

)

Check if system RAM is critically low.

Parameters

threshold_bytes

The minimum bytes that should be available.

Returns

true if available RAM < threshold_bytes.

Check if system RAM is critically low.

Parameters

threshold_bytes

Threshold in bytes that marks memory as critical.

Returns

true when the estimated available RAM is below the threshold.

Definition at line 100 of file sys_info.c.

References cap, and cwist_get_available_ram().