C# NPOIFSFileSystem.GetFreeBlock方法代码示例

本文整理汇总了C#中NPOI.POIFS.FileSystem.NPOIFSFileSystem.GetFreeBlock方法的典型用法代码示例。如果您正苦于以下问题：C# NPOIFSFileSystem.GetFreeBlock方法的具体用法？C# NPOIFSFileSystem.GetFreeBlock怎么用？C# NPOIFSFileSystem.GetFreeBlock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类NPOI.POIFS.FileSystem.NPOIFSFileSystem的用法示例。

在下文中一共展示了NPOIFSFileSystem.GetFreeBlock方法的4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: TestReadWriteNewStream

        public void TestReadWriteNewStream()
        {
            NPOIFSFileSystem fs = new NPOIFSFileSystem();
            NPOIFSStream stream = new NPOIFSStream(fs);

            // Check our filesystem has a BAT and the Properties
            Assert.AreEqual(2, fs.GetFreeBlock());
            BATBlock bat = fs.GetBATBlockAndIndex(0).Block;
            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, bat.GetValueAt(0));
            Assert.AreEqual(POIFSConstants.END_OF_CHAIN, bat.GetValueAt(1));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, bat.GetValueAt(2));

            // Check the stream as-is
            Assert.AreEqual(POIFSConstants.END_OF_CHAIN, stream.GetStartBlock());
            try
            {
                stream.GetBlockIterator();
                Assert.Fail("Shouldn't be able to get an iterator before writing");
            }
            catch (Exception) { }

            // Write in two blocks
            byte[] data = new byte[512 + 20];
            for (int i = 0; i < 512; i++)
            {
                data[i] = (byte)(i % 256);
            }
            for (int i = 512; i < data.Length; i++)
            {
                data[i] = (byte)(i % 256 + 100);
            }
            stream.UpdateContents(data);

            // Check now
            Assert.AreEqual(4, fs.GetFreeBlock());
            bat = fs.GetBATBlockAndIndex(0).Block;
            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, bat.GetValueAt(0));
            Assert.AreEqual(POIFSConstants.END_OF_CHAIN, bat.GetValueAt(1));
            Assert.AreEqual(3, bat.GetValueAt(2));
            Assert.AreEqual(POIFSConstants.END_OF_CHAIN, bat.GetValueAt(3));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, bat.GetValueAt(4));


            IEnumerator<ByteBuffer> it = stream.GetBlockIterator();

            Assert.AreEqual(true, it.MoveNext());
            ByteBuffer b = it.Current;

            byte[] read = new byte[512];
            //b.get(read);
           // Array.Copy(b, 0, read, 0, b.Length);
            b.Read(read);
            for (int i = 0; i < read.Length; i++)
            {
                //Assert.AreEqual("Wrong value at " + i, data[i], read[i]);
                Assert.AreEqual(data[i], read[i], "Wrong value at " + i);
            }

            Assert.AreEqual(true, it.MoveNext());
            b = it.Current;

            read = new byte[512];
            //b.get(read);
            //Array.Copy(b, 0, read, 0, b.Length);
            b.Read(read);
            for (int i = 0; i < 20; i++)
            {
                Assert.AreEqual(data[i + 512], read[i]);
            }
            for (int i = 20; i < read.Length; i++)
            {
                Assert.AreEqual(0, read[i]);
            }

            Assert.AreEqual(false, it.MoveNext());
        }

开发者ID:ctddjyds，项目名称:npoi，代码行数:76，代码来源:TestNPOIFSStream.cs

示例2: TestGetFreeBlockWithSpare

        public void TestGetFreeBlockWithSpare()
        {
            NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.GetFile("BlockSize512.zvi"));

            Assert.AreEqual(true, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);

            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(100));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(101));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(102));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(103));

            Assert.AreEqual(100, fs.GetFreeBlock());

            Assert.AreEqual(100, fs.GetFreeBlock());

            fs.SetNextBlock(100, POIFSConstants.END_OF_CHAIN);
            Assert.AreEqual(101, fs.GetFreeBlock());

            fs.Close();
        }

开发者ID:Reinakumiko，项目名称:npoi，代码行数:20，代码来源:TestNPOIFSFileSystem.cs

示例3: TestGetFreeBlockWithNoneSpare

        public void TestGetFreeBlockWithNoneSpare()
        {
            NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.OpenResourceAsStream("BlockSize512.zvi"));
            int free;

            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, fs.GetNextBlock(99));
            assertBATCount(fs, 1, 0);
            for (int i = 100; i < 128; i++)
                Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(i));

            Assert.AreEqual(true, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);

            for (int i = 100; i < 128; i++)
                fs.SetNextBlock(i, POIFSConstants.END_OF_CHAIN);

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);

            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(128).Block.HasFreeSectors);
                Assert.Fail("Should only be one BAT");
            }
            //catch (IndexOutOfRangeException)
            catch (ArgumentOutOfRangeException)
            {
            }
            assertBATCount(fs, 1, 0);

            // Now ask for a free one, will need to extend the file

            Assert.AreEqual(129, fs.GetFreeBlock());

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);
            Assert.AreEqual(true, fs.GetBATBlockAndIndex(128).Block.HasFreeSectors);
            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, fs.GetNextBlock(128));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(129));

            // We now have 2 BATs, but no XBATs
            assertBATCount(fs, 2, 0);

            // Fill up to hold 109 BAT blocks
            for (int i = 0; i < 109; i++)
            {
                fs.GetFreeBlock();
                int startOffset = i * 128;
                while (fs.GetBATBlockAndIndex(startOffset).Block.HasFreeSectors)
                {
                    free = fs.GetFreeBlock();
                    fs.SetNextBlock(free, POIFSConstants.END_OF_CHAIN);
                }
            }

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128 - 1).Block.HasFreeSectors);
            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128).Block.HasFreeSectors);
                Assert.Fail("Should only be 109 BATs");
            }
            // catch (IndexOutOfRangeException)
            catch (ArgumentOutOfRangeException)
            {
            }

            // We now have 109 BATs, but no XBATs
            assertBATCount(fs, 109, 0);


            // Ask for it to be written out, and check the header
            HeaderBlock header = WriteOutAndReadHeader(fs);
            Assert.AreEqual(109, header.BATCount);
            Assert.AreEqual(0, header.XBATCount);

            free = fs.GetFreeBlock();
            Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128 - 1).Block.HasFreeSectors);
            Assert.AreEqual(true, fs.GetBATBlockAndIndex(110 * 128 - 1).Block.HasFreeSectors);
            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(110 * 128).Block.HasFreeSectors);
                Assert.Fail("Should only be 110 BATs");
            }
            //catch (IndexOutOfRangeException)
            catch (ArgumentOutOfRangeException)
            {
            }

            assertBATCount(fs, 110, 1);

            header = WriteOutAndReadHeader(fs);
            Assert.AreEqual(110, header.BATCount);
            Assert.AreEqual(1, header.XBATCount);

            for (int i = 109; i < 109 + 127; i++)
            {
                fs.GetFreeBlock();
                int startOffset = i * 128;
                while (fs.GetBATBlockAndIndex(startOffset).Block.HasFreeSectors)
                {
                    free = fs.GetFreeBlock();
                    fs.SetNextBlock(free, POIFSConstants.END_OF_CHAIN);
                }
//.........这里部分代码省略.........

开发者ID:Reinakumiko，项目名称:npoi，代码行数:101，代码来源:TestNPOIFSFileSystem.cs

示例4: TestGetFreeBlockWithNoneSpare

        public void TestGetFreeBlockWithNoneSpare()
        {
            NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.OpenResourceAsStream("BlockSize512.zvi"));
            int free;

            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, fs.GetNextBlock(99));

            for (int i = 100; i < 128; i++)
                Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(i));

            Assert.AreEqual(true, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);

            for (int i = 100; i < 128; i++)
                fs.SetNextBlock(i, POIFSConstants.END_OF_CHAIN);

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);

            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(128).Block.HasFreeSectors);
                Assert.Fail("Should only be one BAT");
            }
            //catch (IndexOutOfRangeException)
            catch(ArgumentOutOfRangeException)
            {
            }

            // Now ask for a free one, will need to extend the file

            Assert.AreEqual(129, fs.GetFreeBlock());

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(0).Block.HasFreeSectors);
            Assert.AreEqual(true, fs.GetBATBlockAndIndex(128).Block.HasFreeSectors);
            Assert.AreEqual(POIFSConstants.FAT_SECTOR_BLOCK, fs.GetNextBlock(128));
            Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, fs.GetNextBlock(129));

            // Fill up to hold 109 BAT blocks
            for (int i = 0; i < 109; i++)
            {
                fs.GetFreeBlock();
                int startOffset = i * 128;
                while (fs.GetBATBlockAndIndex(startOffset).Block.HasFreeSectors)
                {
                    free = fs.GetFreeBlock();
                    fs.SetNextBlock(free, POIFSConstants.END_OF_CHAIN);
                }
            }

            Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128 - 1).Block.HasFreeSectors);
            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128).Block.HasFreeSectors);
                Assert.Fail("Should only be 109 BATs");
            }
           // catch (IndexOutOfRangeException)
            catch(ArgumentOutOfRangeException)
            {
            }

            free = fs.GetFreeBlock();
            Assert.AreEqual(false, fs.GetBATBlockAndIndex(109 * 128 - 1).Block.HasFreeSectors);
            Assert.AreEqual(true, fs.GetBATBlockAndIndex(110 * 128 - 1).Block.HasFreeSectors);
            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(110 * 128).Block.HasFreeSectors);
                Assert.Fail("Should only be 110 BATs");
            }
            //catch (IndexOutOfRangeException)
            catch(ArgumentOutOfRangeException)
            {
            }

            for (int i = 109; i < 109 + 127; i++)
            {
                fs.GetFreeBlock();
                int startOffset = i * 128;
                while (fs.GetBATBlockAndIndex(startOffset).Block.HasFreeSectors)
                {
                    free = fs.GetFreeBlock();
                    fs.SetNextBlock(free, POIFSConstants.END_OF_CHAIN);
                }
            }

            // Should now have 109+127 = 236 BATs
            Assert.AreEqual(false, fs.GetBATBlockAndIndex(236 * 128 - 1).Block.HasFreeSectors);
            try
            {
                Assert.AreEqual(false, fs.GetBATBlockAndIndex(236 * 128).Block.HasFreeSectors);
                Assert.Fail("Should only be 236 BATs");
            }
            catch (ArgumentOutOfRangeException)
            {
            }

            // Ask for another, will get our 2nd XBAT
            free = fs.GetFreeBlock();
            Assert.AreEqual(false, fs.GetBATBlockAndIndex(236 * 128 - 1).Block.HasFreeSectors);
            Assert.AreEqual(true, fs.GetBATBlockAndIndex(237 * 128 - 1).Block.HasFreeSectors);
            try
            {
//.........这里部分代码省略.........

开发者ID:hanwangkun，项目名称:npoi，代码行数:101，代码来源:TestNPOIFSFileSystem.cs

注：本文中的NPOI.POIFS.FileSystem.NPOIFSFileSystem.GetFreeBlock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。