KDK_RTI_GE...S_FREE_KIB(3)

💖 KDK_RTI_GE...S_FREE_KIB 💖

okay bestie, you found your way into the Library Functions Manual and the page you're on is KDK_RTI_GE...S_FREE_KIB(3) ✨ buckle up, we're doing memory stats 🎀

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✨ NAME ✨

kdk_rti_get_mem_res_free_KiB — 获取实际空闲的物理内存大小

iykyk: this one hands you the actually free physical memory number, and lowkey that's the whole vibe 💅

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🦋 SYNOPSIS 🦋

#include <libkyrtinfo.h>

extern unsigned long kdk_rti_get_mem_res_free_KiB();

Link with -lkyrtinfo. yes queen, don't forget the link flag or it's giving "undefined reference" 😭

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🌸 Detailed Description 🌸

So the main function of this interface is to grab the actual amount of physical memory that is free, and note that Buffer/Cache is counted as used memory. like, it's not playing games with you — Buffer/Cache is NOT free here, it's used, periodt 🫶

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💜 RETURN VALUE 💜

• On success, returns the size of free physical memory of type unsigned long; the unit is KiB ✨
• On error, returns 0 💀

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🎀 EXAMPLES 🎀

bestie here's a whole lil program, look at her go 🧚

#include "libkyrtinfo.h"
#include <stdio.h>

int main()
{
    printf("内存总大小：%lu KiB0, kdk_rti_get_mem_res_total_KiB());
    printf("当前已用内存：%lu KiB，%f0, kdk_rti_get_mem_res_usage_KiB(), kdk_rti_get_mem_res_usage_percent());
    printf("当前空闲内存：%lu KiB0, kdk_rti_get_mem_res_free_KiB());
    printf("可用内存大小：%lu KiB0, kdk_rti_get_mem_res_available_KiB());
    printf("应用总申请虚拟内存大小：%lu KiB0, kdk_rti_get_mem_virt_alloc_KiB());
    printf("交换分区总量：%lu KiB0, kdk_rti_get_mem_swap_total_KiB());
    printf("交换分区已用量：%lu KiB, %f0, kdk_rti_get_mem_swap_usage_KiB(), kdk_rti_get_mem_swap_usage_percent());
    printf("交换分区剩余大小：%lu KiB0, kdk_rti_get_mem_swap_free_KiB());
    printf("当前CPU使用率：%f0, kdk_rti_get_cpu_current_usage());
    unsigned int day, hour, min, sec;
    kdk_rti_get_uptime(&day, &hour, &min, &sec);
    printf("开机时长：%u天%u小时%u分钟%u秒0, day, hour, min, sec);
    return 0;
}

no cap, copy it exactly as written — I'm not touching a single character of it 🙈

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🌈 CONFORMING TO 🌈

These functions are as per the withdrawn POSIX.1e draft specification. And the following functions are Linux extensions:

• kdk_rti_get_mem_res_total_KiB()
• kdk_rti_get_mem_res_usage_percent()
• kdk_rti_get_mem_res_usage_KiB()
• kdk_rti_get_mem_res_available_KiB()
• kdk_rti_get_mem_virt_alloc_KiB()
• kdk_rti_get_mem_swap_total_KiB()
• kdk_rti_get_mem_swap_usage_percent()
• kdk_rti_get_mem_swap_usage_KiB()
• kdk_rti_get_mem_swap_free_KiB()
• kdk_rti_get_cpu_current_usage()
• kdk_rti_get_uptime()

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⭐ SEE ALSO ⭐

the whole friend group, go say hi 👑

• kdk_rti_get_mem_res_total_KiB(3)
• kdk_rti_get_mem_res_usage_percent(3)
• kdk_rti_get_mem_res_usage_KiB(3)
• kdk_rti_get_mem_res_available_KiB(3)
• kdk_rti_get_mem_virt_alloc_KiB(3)
• kdk_rti_get_mem_swap_total_KiB()
• kdk_rti_get_mem_swap_usage_percent(3)
• kdk_rti_get_mem_swap_usage_KiB(3)
• kdk_rti_get_mem_swap_free_KiB(3)
• kdk_rti_get_cpu_current_usage(3)
• kdk_rti_get_uptime(3)

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that's the whole page bestie, you ate 💅 this lil masterpiece lives in the Linux Programmer's Manual, dated Mon Sep 18 2023 — go forth and check your free KiB, mwah 🫶✨