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2026-08-20

刷新日志缓冲区 - LogFlush ​

函数简介 ​

立即刷新日志缓冲区到文件。

接口名称 ​

LogFlush

DLL调用 ​

c
int32_t LogFlush(int64_t instance, int64_t loggerHandle);

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。
loggerHandle长整数型日志实例句柄（0 表示默认实例）。

示例 ​

异步模式下写日志后调用 LogFlush 立即落盘。

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
const int64_t logger = 0; // 默认实例

ola.LogSetAsync(logger, 1);
ola.LogInfo("buffered message");
int ret = ola.LogFlush(logger);
if (ret != 1) {
    return;
}
// 缓冲区已刷入文件
csharp
using System;
using OLAPlug;

var ola = new OLAPlugServer();
long logger = 0;

ola.LogSetAsync(logger, 1);
ola.LogInfo("buffered message");
int ret = ola.LogFlush(logger);
if (ret != 1) return;
// 缓冲区已刷入文件
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
logger = 0

ola.LogSetAsync(logger, 1)
ola.LogInfo("buffered message")
ret = ola.LogFlush(logger)
if ret != 1:
    raise RuntimeError("failed")
# 缓冲区已刷入文件
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
long logger = 0;

ola.LogSetAsync(logger, 1);
ola.LogInfo("buffered message");
int ret = ola.LogFlush(logger);
if (ret != 1) {
    return;
}
// 缓冲区已刷入文件
go
import "github.com/ola/olaplug/olaplug"

ola, _ := olaplug.NewOLAPlugServer("OLAPlug_x64.dll")
defer ola.ReleaseObj()
logger := int64(0)

ola.LogSetAsync(logger, 1)
ola.LogInfo("buffered message")
ret := ola.LogFlush(logger)
if ret != 1 {
    return
}
// 缓冲区已刷入文件
rust
use olaplug::OLAPlugServer;

let ola = OLAPlugServer::new("OLAPlug_x64.dll").unwrap();
let logger = 0i64;

ola.log_set_async(logger, 1);
ola.log_info("buffered message");
let ret = ola.log_flush(logger);
if ret != 1 {
    return;
}
// 缓冲区已刷入文件
cpp
var ola = com("OlaPlug.OlaSoft")
var logger = 0

ola.LogSetAsync(logger, 1)
ola.LogInfo("buffered message")
var ret = ola.LogFlush(logger)
if(ret == 1) {
    // 缓冲区已刷入文件
}
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
logger = 0

ola.LogSetAsync logger, 1
ola.LogInfo "buffered message"
ret = ola.LogFlush(logger)
If ret = 1 Then
    ' 缓冲区已刷入文件
End If
text
.局部变量 ola, OLAPlug
.局部变量 ret, 整数型
.局部变量 logger, 长整数型

ola.Create ()
logger ＝ 0

ola.LogSetAsync (logger, 1)
ola.LogInfo (“buffered message”)
ret ＝ ola.LogFlush (logger)
.如果真 (ret ＝ 1)
    ' 缓冲区已刷入文件
.如果真结束
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var logger = 0;

ola.LogSetAsync(logger, 1);
ola.LogInfo("buffered message");
var ret = ola.LogFlush(logger);
if(ret == 1){
    // 缓冲区已刷入文件
}
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
长整数 logger = 0

ola.LogSetAsync(logger, 1)
ola.LogInfo("buffered message")
整数 ret = ola.LogFlush(logger)
如果真 (ret ＝ 1)
{
    ' 缓冲区已刷入文件
}
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int64_t logger = 0;

ola.LogSetAsync(logger, 1);
ola.LogInfo("buffered message");
int32_t ret = ola.LogFlush(logger);
if (ret != 1) {
    return;
}
// 缓冲区已刷入文件

原生 DLL 调用 ​

cpp
long instance = CreateCOLAPlugInterFace();
long logger = 0;

LogSetAsync(instance, logger, 1);
LogInfo(instance, "buffered message");
int ret = LogFlush(instance, logger);
csharp
using System.Runtime.InteropServices;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int LogSetAsync(long ola, long loggerHandle, int enableAsync);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int LogInfo(long ola, string message);
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int LogFlush(long ola, long loggerHandle);

long instance = CreateCOLAPlugInterFace();
long logger = 0;

LogSetAsync(instance, logger, 1);
LogInfo(instance, "buffered message");
int ret = LogFlush(instance, logger);
python
from ctypes import CDLL, c_int, c_int64

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

ola.LogSetAsync(instance, logger, 1)
ola.LogInfo(instance, b"buffered message")
ret = ola.LogFlush(instance, logger)

返回值 ​

返回值说明
1成功。
0失败。

注意事项 ​

项目说明
如果 LogSetFlushInterval如果 LogSetFlushInterval 设置为 0（默认），日志会自动立即刷新，无需手动调用此函数。
如果 LogSetFlushInterval如果 LogSetFlushInterval > 0，可以调用此函数强制刷新缓冲区中的日志。
在程序退出前或关键操作前调用建议在程序退出前或关键操作前调用，确保日志已写入文件。
频繁调用会影响性能频繁调用会影响性能。