using System;
using System.IO;
using ICSharpCode.SharpZipLib.Core;

namespace ICSharpCode.SharpZipLib.Zip
{
	// Token: 0x02000079 RID: 121
	public class MemoryArchiveStorage : BaseArchiveStorage
	{
		// Token: 0x06000499 RID: 1177 RVA: 0x00016BC4 File Offset: 0x00015BC4
		public MemoryArchiveStorage()
			: base(FileUpdateMode.Direct)
		{
		}

		// Token: 0x0600049A RID: 1178 RVA: 0x00016BCD File Offset: 0x00015BCD
		public MemoryArchiveStorage(FileUpdateMode updateMode)
			: base(updateMode)
		{
		}

		// Token: 0x1700010F RID: 271
		// (get) Token: 0x0600049B RID: 1179 RVA: 0x00016BD6 File Offset: 0x00015BD6
		public MemoryStream FinalStream
		{
			get
			{
				return this.finalStream_;
			}
		}

		// Token: 0x0600049C RID: 1180 RVA: 0x00016BDE File Offset: 0x00015BDE
		public override Stream GetTemporaryOutput()
		{
			this.temporaryStream_ = new MemoryStream();
			return this.temporaryStream_;
		}

		// Token: 0x0600049D RID: 1181 RVA: 0x00016BF1 File Offset: 0x00015BF1
		public override Stream ConvertTemporaryToFinal()
		{
			if (this.temporaryStream_ == null)
			{
				throw new ZipException("No temporary stream has been created");
			}
			this.finalStream_ = new MemoryStream(this.temporaryStream_.ToArray());
			return this.finalStream_;
		}

		// Token: 0x0600049E RID: 1182 RVA: 0x00016C22 File Offset: 0x00015C22
		public override Stream MakeTemporaryCopy(Stream stream)
		{
			this.temporaryStream_ = new MemoryStream();
			stream.Position = 0L;
			StreamUtils.Copy(stream, this.temporaryStream_, new byte[4096]);
			return this.temporaryStream_;
		}

		// Token: 0x0600049F RID: 1183 RVA: 0x00016C54 File Offset: 0x00015C54
		public override Stream OpenForDirectUpdate(Stream stream)
		{
			Stream stream2;
			if (stream == null || !stream.CanWrite)
			{
				stream2 = new MemoryStream();
				if (stream != null)
				{
					stream.Position = 0L;
					StreamUtils.Copy(stream, stream2, new byte[4096]);
					stream.Close();
				}
			}
			else
			{
				stream2 = stream;
			}
			return stream2;
		}

		// Token: 0x060004A0 RID: 1184 RVA: 0x00016C99 File Offset: 0x00015C99
		public override void Dispose()
		{
			if (this.temporaryStream_ != null)
			{
				this.temporaryStream_.Close();
			}
		}

		// Token: 0x0400030D RID: 781
		private MemoryStream temporaryStream_;

		// Token: 0x0400030E RID: 782
		private MemoryStream finalStream_;
	}
}