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2026-06-10

执行散列读 - DmaScatterExecute ​

函数简介 ​

执行散列读操作，读取所有已准备的地址数据。(高级版功能,普通版无法使用)

接口名称 ​

DmaScatterExecute

DLL调用 ​

c
int32_t OLA_CALL_TYPE DmaScatterExecute(int64_t instance, int64_t scatterHandle);

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。
scatterHandle长整数型散列句柄，由 DmaScatterCreate 返回

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int ret = ola.DmaScatterExecute(0);
csharp
using OLAPlug;

var ola = new OLAPlugServer();
int ret = ola.DmaScatterExecute(0);
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
ret = ola.DmaScatterExecute(0)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
int ret = ola.DmaScatterExecute(0);
cpp
var ola = com("OlaPlug.OlaSoft")
var ret = ola.DmaScatterExecute(0)
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
ret = ola.DmaScatterExecute(0)
text
.局部变量 ola, OLAPlug
ola.创建 ()
ret ＝ ola.DmaScatterExecute(0)
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var ret = ola.DmaScatterExecute(0);
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
整数 ret = ola.DmaScatterExecute(0)
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int32_t ret = ola.DmaScatterExecute(0);

原生 DLL 调用 ​

cpp
DmaScatterExecute(instance, 0);
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int DmaScatterExecute(long ola, int scatterHandle);

DmaScatterExecute(instance, 0);
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
ola.DmaScatterExecute(instance, 0)

返回值 ​

整数型：1 成功，0 失败。

注意事项 ​

  • 必须先调用 DmaScatterPrepare 准备地址
  • 执行后可以使用 DmaScatterRead 读取数据
  • 可以多次执行以刷新数据