.TH "KDK_GET_PROCESS_PORT" 3 "Mon Sep 18 2023" "Linux Programmer's Manual" \"
.SH NAME
kdk_get_process_port - 获取某一进程的端口号占用
.SH SYNOPSIS
.nf
.B #include <libkyprocess.h>
.sp
.BI "extern int kdk_get_process_port(int "proc_num ");" 
.sp
Link with \fI\-lkyrtinfo\fP.
.SH "Detailed Description"
The main function of the interface is to obtain the port number occupation of the specified process.
.PP
The argument
.I proc_num
is the PID of the process.
.SH "RETURN VALUE"
On success, returns the port number used of the process of type int.
.PP
On error, return
.BR 0.
.SH EXAMPLES
.EX
#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：%0.1f\n", kdk_get_process_cpu_usage_percent(841));
    printf("获取某一进程的内存占用率：%0.1f\n", kdk_get_process_mem_usage_percent(841));
    printf("获取某一进程的进程状态：%s\n", kdk_get_process_status(841));
    printf("获取某一进程的进程端口号：%d\n", kdk_get_process_port(841));
    printf("获取某一进程的启动时间：%s\n", start_time);
    printf("获取某一进程的运行时间：%s\n", run_time);
    printf("获取某一进程的CPU时间：%s\n", cpu_time);
    printf("获取某一进程的Command：%s\n", cmd);
    printf("获取某一进程的属主：%s\n", 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 %s\n", pid[index]);
        index ++;
    }
    kdk_proc_freeall(pid);

    char** info = kdk_get_process_all_information();
    size_t count = 0;
    while (info[count])
    {
        printf("No. %d\t %s\n", count + 1, info[count]);
        count ++;
    }
    kdk_proc_freeall(info);

    char *name = kdk_get_process_name(1151571);
    printf("name = %s\n", name);
    free(name);

    int id =  kdk_get_process_id("systemd");
    printf("pid %d\n", id);
   
    return 0;
}

.SH "CONFORMING TO"
These functions are as per the withdrawn POSIX.1e draft specification.
The following functions are Linux extensions:
.BR kdk_get_process_name (),
.BR kdk_get_process_id (),
.BR kdk_get_process_cpu_usage_percent (),
.BR kdk_get_process_mem_usage_percent (),
.BR kdk_get_process_status (),
.BR kdk_get_process_start_time (),
.BR kdk_get_process_running_time (),
.BR kdk_get_process_cpu_time (),
.BR kdk_get_process_command (),
.BR kdk_get_process_user (),
.BR kdk_procname_get_process_infomation (),
.BR kdk_get_process_all_information ()
and
.BR kdk_proc_freeall ().
.SH "SEE ALSO"
.BR kdk_get_process_name (3),
.BR kdk_get_process_id (3),
.BR kdk_get_process_cpu_usage_percent (3),
.BR kdk_get_process_mem_usage_percent (3),
.BR kdk_get_process_status (3),
.BR kdk_get_process_start_time (),
.BR kdk_get_process_running_time (3),
.BR kdk_get_process_cpu_time (3),
.BR kdk_get_process_command (3),
.BR kdk_get_process_user (3),
.BR kdk_procname_get_process_infomation (3),
.BR kdk_get_process_all_information (3)
and
.BR kdk_proc_freeall (3).