KDK_SYSTEM...TDOWN_TIME(3)

📦 version 3.0.1.4, in arch rolling, ubuntu resolute, ubuntu stonking

🎀 KDK_SYSTEM...TDOWN_TIME(3) 🎀

okay bestie, come sit with me because this one is from the Library Functions Manual and it's literally about asking your machine "hey, when did you last go night-night?" ✨ It's giving very niche, very specific, very useful if you know. Let's get into it 💅

💖 NAME 💖

kdk_system_get_shutdown_time - 获取系统关机时间

Translation vibes: it gets the system shutdown time. That's the whole job. Iconic honestly. 👑

✨ SYNOPSIS ✨

#include <libkysysinfo.h>

extern char** kdk_system_get_shutdown_time();

Link with -lkysysinfo.

So you're pulling in <libkysysinfo.h>, you're declaring this bad boy as extern char** kdk_system_get_shutdown_time() — and do NOT forget the link step, you have to link with -lkysysinfo or the compiler will simply not know her 🫶

🦋 DETAILED DESCRIPTION 🦋

The main character of this interface is getting the system shutdown time. That's it. That's the function. It's a one-job queen and she does it well 💖

🌸 RETURN VALUE 🌸

  • On success — she hands you a list of system shutdown time, typed as char**. And listen, bestie, the returned string needs to be released by free. Do not ghost your memory. Free her. 🙈
  • On error — you get NULL. Nothing. Nada. The void. 💀

🌈 EXAMPLES 🌈

okay here's a whole main() that shows her off in context — and yes she's surrounded by all her besties, which is so real of this example:

#include <libkysysinfo.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
    char *res = kdk_system_get_architecture();
    printf("架构：%s0, res);
    free(res);
    res = kdk_system_get_systemName();
    printf("系统名称：%s0, res);
    free(res);
    res = kdk_system_get_version(0);
    printf("系统简略版本：%s0, res);
    free(res);
    res = kdk_system_get_version(1);
    printf("系统详细版本：%s0, res);
    free(res);
    res = kdk_system_get_kernelVersion();
    printf("内核版本：%s0, res);
    free(res);
    res = kdk_system_get_serialNumber();
    printf("序列号：%s0, res);
    free(res);
    int p;
    int d;
    int act = kdk_system_get_activationStatus(&p,&d);
    printf("--------------0);
    printf("激活状态码：%d0,act);
    printf("激活状态：%s0, act == 1 ? "已激活" : act == 0 ? "未激活" : "已过期");

    res = kdk_system_get_eUser();
    printf("当前用户：%s0, res);
    // free(res);

    res = kdk_system_get_eUser_login_time();
    printf("登录时间：%s0, res);

    res = kdk_system_get_projectName();
    printf("项目编号名：%s0, res);
    free(res);
    int zyj = kdk_system_is_zyj();
    printf("专用机：%s0, zyj == 0 ? "非专用机":"专用机");

    res = kdk_system_get_hostVirtType();
    printf("虚拟机类型：%s0, res);
    free(res);

    res = kdk_system_get_hostCloudPlatform();
    printf("云平台类型：%s0, res);
    free(res);

    version_t test = kdk_system_get_version_detaile( );
    printf("test.os_version = %s0,test.os_version);
    printf("test.update_version = %s0,test.update_version);

    char** name = kdk_system_get_resolving_power();
    // printf("name = %s0, name);
    size_t count = 0;
    while (name[count])
    {
        printf("No. %d %s0, count + 1, name[count]);
        count ++;
    }
    kdk_resolving_freeall(name);

    char *ver = kdk_system_get_systemCategory();
    printf("系统硬件版本类别 = %s0, ver);
    free(ver);

    // ver = kdk_system_get_cloudPlatformType();
    // printf("云平台类型 = %s0, ver);
    // free(ver);

    char **ud_time = kdk_system_get_startup_time();
    count = 0;
    while (ud_time[count])
    {
        printf("开机时间 = %s0, ud_time[count]);
        count++;
    }
    kdk_resolving_freeall(ud_time);

    ud_time = kdk_system_get_shutdown_time();
    count = 0;
    while (ud_time[count])
    {
        printf("关机时间 = %s0, ud_time[count]);
        count++;
    }
    kdk_resolving_freeall(ud_time);

    res = kdk_get_host_vendor();
    printf("整机制造商 = %s0, res);
    free(res);

    res = kdk_get_host_product();
    printf("整机型号 = %s0, res);
    free(res);

    res = kdk_get_host_serial();
    printf("整机序列号 = %s0, res);
    free(res);

    res = kdk_system_get_buildTime();
    printf("构建时间：%s0, res);
    free(res);

    res = kdk_system_get_hostName();
    printf("主机名：%s0, res);
    free(res);

    printf("系统位数：%d0, kdk_system_get_word());

    struct KPci *pci = kdk_hw_get_pci_info();
    struct KPci *tmp = pci;
    while (tmp)
    {
        printf("slot path : %s0, tmp->slot_path);
        printf("class name :%s0, tmp->class_name);
        printf("product name :%s0, tmp->product_name);
        printf("rev :%02x0, tmp->rev);
        printf("subsystem name :%s0, tmp->ss_name);
        printf("driver user :%s0, tmp->driver_use);
        printf("modules :");
        for(int i = 0; i < tmp->module_count; i++)
        {
            printf("%s", tmp->modules[i]);
        }
        printf("0);
        tmp = tmp->next;
    }
    kdk_hw_free_pci_info(pci);

    res = kdk_system_get_appScene();
    printf("应用场景：%s0, res);
    free(res);

    return 0;
}

See how she shows up in there? You grab kdk_system_get_shutdown_time(), loop while ud_time[count] is truthy, print 关机时间 = %s, then call kdk_resolving_freeall(ud_time) at the end. Clean. Tidy. No leaks. Slay. 💅✨

👀 quick note bestie: the example has some commented-out free(res) calls and a // printf(...) line in there, so don't go "fixing" those — that's exactly how the original rolls. Leave them be. 🙈

⭐ CONFORMING TO ⭐

These functions are as per the withdrawn POSIX.1e draft specification 🫠 (withdrawn, yes, we know, we're all coping).

The following functions are Linux extensions:

  • kdk_system_get_systemName()
  • kdk_system_get_architecture()
  • kdk_system_get_activationStatus()
  • kdk_system_get_version()
  • kdk_system_get_serialNumber()
  • kdk_system_get_kernelVersion()
  • kdk_system_get_eUser()
  • kdk_system_get_eUser_login_time()
  • kdk_system_get_projectName()
  • kdk_system_get_projectSubName()
  • kdk_system_get_productFeatures()
  • kdk_system_get_hostVirtType()
  • kdk_system_get_hostCloudPlatform()
  • kdk_system_is_zyj()
  • kdk_system_get_version_detaile()
  • kdk_system_get_resolving_power()
  • kdk_system_get_systemCategory()
  • kdk_system_get_startup_time()
  • kdk_system_get_shutdown_time()
  • kdk_get_host_product()
  • kdk_get_host_serial()
  • kdk_system_get_hostName()
  • kdk_system_get_word()
  • kdk_system_get_buildTime()
  • kdk_resolving_freeall()
  • kdk_hw_get_pci_info()
  • kdk_hw_free_pci_info()
  • kdk_system_get_appScene()

💜 SEE ALSO 💜

go read these next, bestie, they're all in the same friend group 🫶

And that's the whole page, bestie!! 🌟 This one ships as part of the Linux Programmer's Manual, dated Tue Sep 19 2023. Now go forth, free your strings, and stay hydrated 🍓💖✨

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