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https://github.com/danieleteti/delphimvcframework.git
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104 lines
2.4 KiB
ObjectPascal
104 lines
2.4 KiB
ObjectPascal
// ***************************************************************************
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//
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// LoggerPro
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//
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// Copyright (c) 2015-2017 Daniele Teti
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//
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// https://github.com/danieleteti/loggerpro
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//
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//
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// ***************************************************************************
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// ***************************************************************************
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unit LoggerPro.MemoryAppender;
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interface
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uses
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LoggerPro, System.Generics.Collections, System.SyncObjs, System.SysUtils,
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ThreadSafeQueueU;
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type
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TMREWLogItemList = class(TMREWObjectList<TLogItem>)
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end;
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TLoggerProMemoryAppender = class(TLoggerProAppenderBase)
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private
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fMREWLogList: TMREWLogItemList;
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fTag: string;
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fMaxSize: Int32;
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public
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procedure Setup; override;
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procedure WriteLog(const aLogItem: TLogItem); override;
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procedure TearDown; override;
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constructor Create(aLogList: TMREWLogItemList; aTag: string; aMaxSize: Int32); reintroduce; virtual;
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end;
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implementation
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var
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Glock: TObject = nil;
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{ TLoggerProMemoryAppender }
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constructor TLoggerProMemoryAppender.Create(aLogList: TMREWLogItemList; aTag: string; aMaxSize: Int32);
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begin
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inherited Create;
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fMREWLogList := aLogList;
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fTag := aTag;
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fMaxSize := aMaxSize
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end;
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procedure TLoggerProMemoryAppender.Setup;
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begin
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inherited;
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end;
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procedure TLoggerProMemoryAppender.TearDown;
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begin
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inherited;
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end;
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procedure TLoggerProMemoryAppender.WriteLog(const aLogItem: TLogItem);
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var
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lList: TObjectList<TLogItem>;
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begin
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if aLogItem.LogTag <> fTag then
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Exit;
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lList := fMREWLogList.BeginWrite;
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try
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if lList.Count >= fMaxSize then
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begin
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while lList.Count > (fMaxSize * 0.9) do // remove 10% of the list HEAD
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lList.Delete(0);
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end;
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lList.Add(aLogItem.Clone);
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finally
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fMREWLogList.EndWrite;
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end;
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end;
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initialization
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Glock := TObject.Create;
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finalization
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Glock.Free;
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end.
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