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2026-07-04

获取所有连接ID - TcpServerGetAllConnectionIds ​

函数简介 ​

获取所有连接的ID列表。

接口名称 ​

TcpServerGetAllConnectionIds

DLL调用 ​

c
const char* TcpServerGetAllConnectionIds(int64_t instance, int64_t server_handle);

参数说明 ​

参数名类型说明
instance长整数型OLAPlug对象的指针，由 CreateCOLAPlugInterFace 接口生成。
server_handle长整数型服务端句柄。

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long server = ola.TcpServerCreate("0.0.0.0", 9000, nullptr, 0, 1);
if (server != 0) {
    string ids = ola.TcpServerGetAllConnectionIds(server);
    // ids 格式 "1,2,3"，可用于广播
    ola.TcpServerDestroy(server);
}
csharp
using OLAPlug;

var ola = new OLAPlugServer();
long server = ola.TcpServerCreate("0.0.0.0", 9000, null, 0, 1);
if (server != 0)
{
    string ids = ola.TcpServerGetAllConnectionIds(server);
    ola.TcpServerDestroy(server);
}
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
server = ola.TcpServerCreate("0.0.0.0", 9000, None, 0, 1)
if server:
    ids = ola.TcpServerGetAllConnectionIds(server)
    ola.TcpServerDestroy(server)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
long server = ola.TcpServerCreate("0.0.0.0", 9000, null, 0, 1);
if (server != 0) {
    String ids = ola.TcpServerGetAllConnectionIds(server);
    ola.TcpServerDestroy(server);
}
go
import "github.com/ola/olaplug/olaplug"

ola, _ := olaplug.NewOLAPlugServer("OLAPlug_x64.dll")
defer ola.ReleaseObj()
long server = ola.TcpServerCreate("0.0.0.0", 9000, nil, 0, 1);
if (server != 0) {
    ids := ola.TcpServerGetAllConnectionIds(server)
    ola.TcpServerDestroy(server);
}
rust
use olaplug::OLAPlugServer;

let ola = OLAPlugServer::new("OLAPlug_x64.dll").unwrap();
long server = ola.TcpServerCreate("0.0.0.0", 9000, None, 0, 1);
if (server != 0) {
    let ids = ola.tcp_server_get_all_connection_ids(&server);
    ola.TcpServerDestroy(server);
}
cpp
var ola = com("OlaPlug.OlaSoft")
long server = ola.TcpServerCreate("0.0.0.0", 9000, 0, 0, 1);
if (server != 0) {
    var ids = ola.TcpServerGetAllConnectionIds(server)
    ola.TcpServerDestroy(server);
}
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
long server = ola.TcpServerCreate("0.0.0.0", 9000, 0, 0, 1);
if (server != 0) {
    ids = ola.TcpServerGetAllConnectionIds(server)
    ola.TcpServerDestroy(server);
}
text
.局部变量 ola, OLAPlug
ola.创建 ()
long server = ola.TcpServerCreate("0.0.0.0", 9000, 0, 0, 1);
if (server != 0) {
    ids ＝ ola.TcpServerGetAllConnectionIds (server)
    ola.TcpServerDestroy(server);
}
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
long server = ola.TcpServerCreate("0.0.0.0", 9000, null, 0, 1);
if (server != 0) {
    var ids = ola.TcpServerGetAllConnectionIds(server);
    ola.TcpServerDestroy(server);
}
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
long server = ola.TcpServerCreate("0.0.0.0", 9000, 0, 0, 1);
if (server != 0) {
    文本型 ids = ola.TcpServerGetAllConnectionIds(server)
    ola.TcpServerDestroy(server);
}
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long server = ola.TcpServerCreate("0.0.0.0", 9000, nullptr, 0, 1);
if (server != 0) {
    string ids = ola.TcpServerGetAllConnectionIds(server);
    ola.TcpServerDestroy(server);
}

原生 DLL 调用 ​

cpp
long instance = CreateCOLAPlugInterFace();
long server = TcpServerCreate(instance, "0.0.0.0", 9000, 0, instance, 1);
if (server != 0) {
    long ptr = TcpServerGetAllConnectionIds(instance, server);
    if (ptr != 0) FreeStringPtr(ptr);
    TcpServerDestroy(instance, server);
}
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long TcpServerCreate(long ola, string bind_addr, int port, long callback, long user_data, int enable_packet_protocol);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int TcpServerDestroy(long ola, long server_handle);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long TcpServerGetAllConnectionIds(long ola, long server_handle);

long instance = CreateCOLAPlugInterFace();
long server = TcpServerCreate(instance, "0.0.0.0", 9000, 0, instance, 1);
if (server != 0) {
    long ptr = TcpServerGetAllConnectionIds(instance, server);
    if (ptr != 0) FreeStringPtr(ptr);
    TcpServerDestroy(instance, server);
}
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
server = ola.TcpServerCreate(instance, b"0.0.0.0", 9000, 0, instance, 1)
if server:
    long ptr = ola.TcpServerGetAllConnectionIds(instance, server);
    if (ptr != 0) FreeStringPtr(ptr);
    ola.TcpServerDestroy(instance, server)

返回值 ​

返回值说明
（返回值）字符串指针，连接ID之间用逗号分隔（如"1,2,3"），失败返回NULL。需调用 FreeStringPtr 释放内存。

注意事项 ​

项目说明
释放内存返回的字符串需要调用 FreeStringPtr 释放内存。
如果没有连接如果没有连接，返回空字符串""。
可用于广播消息、统计连接数等可用于广播消息、统计连接数等。