Stream which compresses / uncompresses data using the 'deflate' compression algorithm.
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| DeflateStream (const DataStreamPtr &compressedStream, const String &tmpFileName="", size_t avail_in=0) |
| Constructor for creating unnamed stream wrapping another stream. More...
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| DeflateStream (const String &name, const DataStreamPtr &compressedStream, const String &tmpFileName="", size_t avail_in=0) |
| Constructor for creating named stream wrapping another stream. More...
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| DeflateStream (const String &name, const DataStreamPtr &compressedStream, StreamType streamType, const String &tmpFileName="", size_t avail_in=0) |
| Constructor for creating named stream wrapping another stream. More...
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| ~DeflateStream () |
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void | close (void) override |
| Close the stream; this makes further operations invalid. More...
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bool | eof (void) const override |
| Returns true if the stream has reached the end. More...
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bool | isCompressedStreamValid () const |
| Returns whether the compressed stream is valid deflated data. More...
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size_t | read (void *buf, size_t count) override |
| Read the requisite number of bytes from the stream, stopping at the end of the file. More...
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void | seek (size_t pos) override |
| Repositions the read point to a specified byte. More...
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void | skip (long count) override |
| Skip a defined number of bytes. More...
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size_t | tell (void) const override |
| Returns the current byte offset from beginning. More...
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size_t | write (const void *buf, size_t count) override |
| Write the requisite number of bytes from the stream (only applicable to streams that are not read-only) More...
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| DataStream (const String &name, uint16 accessMode=READ) |
| Constructor for creating named streams. More...
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| DataStream (uint16 accessMode=READ) |
| Constructor for creating unnamed streams. More...
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virtual | ~DataStream () |
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uint16 | getAccessMode () const |
| Gets the access mode of the stream. More...
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virtual String | getAsString (void) |
| Returns a String containing the entire stream. More...
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virtual String | getLine (bool trimAfter=true) |
| Returns a String containing the next line of data, optionally trimmed for whitespace. More...
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const String & | getName (void) |
| Returns the name of the stream, if it has one. More...
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virtual bool | isReadable () const |
| Reports whether this stream is readable. More...
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virtual bool | isWriteable () const |
| Reports whether this stream is writeable. More...
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template<typename T > |
DataStream & | operator>> (T &val) |
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virtual size_t | readLine (char *buf, size_t maxCount, const String &delim="\n") |
| Get a single line from the stream. More...
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size_t | size (void) const |
| Returns the total size of the data to be read from the stream, or 0 if this is indeterminate for this stream. More...
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virtual size_t | skipLine (const String &delim="\n") |
| Skip a single line from the stream. More...
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Stream which compresses / uncompresses data using the 'deflate' compression algorithm.
This stream is designed to wrap another stream for the actual source / destination of the compressed data, it has no concrete source / data itself. The idea is that you pass uncompressed data through this stream, and the underlying stream reads/writes compressed data to the final source.
- Note
- This is an alternative to using a compressed archive since it is able to compress & decompress regardless of the actual source of the stream. You should avoid using this with already compressed archives. Also note that this cannot be used as a read / write stream, only a read-only or write-only stream.