NAME

kdk_get_process_mem_usage_percent - 获取某一进程的内存占用率

SYNOPSIS

#include <libkyprocess.h>

extern float kdk_get_process_mem_usage_percent(int proc_num);

Link with -lkyrtinfo.

Detailed Description

The main function of the interface is to obtain the memory usage of the specified process.

The argument proc_num is the PID of the process.

RETURN VALUE

On success, returns the memory usage of the process of type float.

On error, return 0.00

EXAMPLES

#include "libkyprocess.h"
#include <stdio.h>
#include <stdlib.h>
int main()
{
    char *run_time = kdk_get_process_running_time(841);
    char *cpu_time = kdk_get_process_cpu_time(841);
    char *cmd = kdk_get_process_command(841);
    char *start_time = kdk_get_process_start_time(841);
    printf("获取某一进程的CPU利用率：%0.1f0, kdk_get_process_cpu_usage_percent(841));
    printf("获取某一进程的内存占用率：%0.1f0, kdk_get_process_mem_usage_percent(841));
    printf("获取某一进程的进程状态：%s0, kdk_get_process_status(841));
    printf("获取某一进程的进程端口号：%d0, kdk_get_process_port(841));
    printf("获取某一进程的启动时间：%s0, start_time);
    printf("获取某一进程的运行时间：%s0, run_time);
    printf("获取某一进程的CPU时间：%s0, cpu_time);
    printf("获取某一进程的Command：%s0, cmd);
    printf("获取某一进程的属主：%s0, kdk_get_process_user(841));
    free(run_time);
    free(cpu_time);
    free(cmd);
    free(start_time);
    char** pid =  kdk_procname_get_process_infomation("systemd");
    size_t index = 0;
    while (pid[index])
    {
        printf("pid %s0, pid[index]);
        index ++;
    }
    kdk_proc_freeall(pid);
    char** info = kdk_get_process_all_information();
    size_t count = 0;
    while (info[count])
    {
        printf("No. %d %s0, count + 1, info[count]);
        count ++;
    }
    kdk_proc_freeall(info);
    char *name = kdk_get_process_name(1151571);
    printf("name = %s0, name);
    free(name);
    int id =  kdk_get_process_id("systemd");
    printf("pid %d0, id);
    return 0;
}

CONFORMING TO

These functions are as per the withdrawn POSIX.1e draft specification. The following functions are Linux extensions: kdk_get_process_name(), kdk_get_process_id(), kdk_get_process_cpu_usage_percent(), kdk_get_process_status(), kdk_get_process_port(), kdk_get_process_start_time(), kdk_get_process_running_time(), kdk_get_process_cpu_time(), kdk_get_process_command(), kdk_get_process_user(), kdk_procname_get_process_infomation(), kdk_get_process_all_information() and kdk_proc_freeall().