NAME

kdk_rti_get_mem_res_total_KiB - 获取系统中物理内存总大小

SYNOPSIS

#include <libkyrtinfo.h>

extern unsigned long kdk_rti_get_mem_res_total_KiB();

Link with -lkyrtinfo.

Detailed Description

The main function of the interface is to obtain the total size of physical memory in the system.

RETURN VALUE

On success, returns the physical memory size of type unsigned long; The unit is KiB.

On error, return 0.

EXAMPLES

#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;
}

CONFORMING TO

These functions are as per the withdrawn POSIX.1e draft specification. The following functions are Linux extensions: 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_res_free_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() and kdk_rti_get_uptime().