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C# GZipStream.WriteByte方法代码示例

本文整理汇总了C#中GZipStream.WriteByte方法的典型用法代码示例。如果您正苦于以下问题:C# GZipStream.WriteByte方法的具体用法?C# GZipStream.WriteByte怎么用?C# GZipStream.WriteByte使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GZipStream的用法示例。


在下文中一共展示了GZipStream.WriteByte方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: Zlib_GZipStream_ByteByByte_CheckCrc

        public void Zlib_GZipStream_ByteByByte_CheckCrc()
        {
            // select the name of the zip file
            string FileToCompress = System.IO.Path.Combine(TopLevelDir, "Zlib_GZipStream_ByteByByte.dat");
            Assert.IsFalse(System.IO.File.Exists(FileToCompress), "The temporary zip file '{0}' already exists.", FileToCompress);
            byte[] working = new byte[WORKING_BUFFER_SIZE];
            int n = -1;

            int sz = this.rnd.Next(21000) + 15000;
            TestContext.WriteLine("  Creating file: {0} sz({1})", FileToCompress, sz);
            CreateAndFillFileText(FileToCompress, sz);

            System.IO.FileInfo fi1 = new System.IO.FileInfo(FileToCompress);
            int crc1 = DoCrc(FileToCompress);

            // four trials, all combos of FileName and Comment null or not null.
            for (int k = 0; k < 4; k++)
            {
                string CompressedFile = String.Format("{0}-{1}.compressed", FileToCompress, k);

                using (Stream input = File.OpenRead(FileToCompress))
                {
                    using (FileStream raw = new FileStream(CompressedFile, FileMode.Create))
                    {
                        using (GZipStream compressor =
                               new GZipStream(raw, CompressionMode.Compress, CompressionLevel.BestCompression, true))
                        {
                            // FileName is optional metadata in the GZip bytestream
                            if (k % 2 == 1)
                                compressor.FileName = FileToCompress;

                            // Comment is optional metadata in the GZip bytestream
                            if (k > 2)
                                compressor.Comment = "Compressing: " + FileToCompress;

                            byte[] buffer = new byte[1024];
                            n = -1;
                            while (n != 0)
                            {
                                if (n > 0)
                                {
                                    for (int i=0; i < n; i++)
                                        compressor.WriteByte(buffer[i]);
                                }

                                n = input.Read(buffer, 0, buffer.Length);
                            }
                        }
                    }
                }

                System.IO.FileInfo fi2 = new System.IO.FileInfo(CompressedFile);

                Assert.IsTrue(fi1.Length > fi2.Length, String.Format("Compressed File is not smaller, trial {0} ({1}!>{2})", k, fi1.Length, fi2.Length));


                // decompress twice:
                // once with System.IO.Compression.GZipStream and once with Alienlab.Zlib.GZipStream
                for (int j = 0; j < 2; j++)
                {
                    using (var input = System.IO.File.OpenRead(CompressedFile))
                    {

                        Stream decompressor = null;
                        try
                        {
                            switch (j)
                            {
                            case 0:
                                decompressor = new Alienlab.Zlib.GZipStream(input, CompressionMode.Decompress, true);
                                break;
                            case 1:
                                decompressor = new System.IO.Compression.GZipStream(input, System.IO.Compression.CompressionMode.Decompress, true);
                                break;
                            }

                            string DecompressedFile =
                                String.Format("{0}.{1}.decompressed", CompressedFile, (j == 0) ? "Ionic" : "BCL");

                            TestContext.WriteLine("........{0} ...", System.IO.Path.GetFileName(DecompressedFile));

                            using (var s2 = System.IO.File.Create(DecompressedFile))
                            {
                                n = -1;
                                while (n != 0)
                                {
                                    n = decompressor.Read(working, 0, working.Length);
                                    if (n > 0)
                                        s2.Write(working, 0, n);
                                }
                            }

                            int crc2 = DoCrc(DecompressedFile);
                            Assert.AreEqual<Int32>(crc1, crc2);

                        }
                        finally
                        {
                            if (decompressor as Alienlab.Zlib.GZipStream != null)
                            {
//.........这里部分代码省略.........
开发者ID:alienlab,项目名称:Alienlab.Zip.Reduced,代码行数:101,代码来源:ZlibUnitTest1.cs


注:本文中的GZipStream.WriteByte方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。