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70 lines
3.0 KiB
70 lines
3.0 KiB
2 years ago
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LZ4 Windows binary package
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====================================
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#### The package contents
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- `lz4.exe` : Command Line Utility, supporting gzip-like arguments
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- `dll\liblz4.dll` : The DLL of LZ4 library
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- `dll\liblz4.lib` : The import library of LZ4 library for Visual C++
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- `example\` : The example of usage of LZ4 library
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- `include\` : Header files required with LZ4 library
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- `static\liblz4_static.lib` : The static LZ4 library
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#### Usage of Command Line Interface
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Command Line Interface (CLI) supports gzip-like arguments.
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By default CLI takes an input file and compresses it to an output file:
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```
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Usage: lz4 [arg] [input] [output]
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```
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The full list of commands for CLI can be obtained with `-h` or `-H`. The ratio can
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be improved with commands from `-3` to `-16` but higher levels also have slower
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compression. CLI includes in-memory compression benchmark module with compression
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levels starting from `-b` and ending with `-e` with iteration time of `-i` seconds.
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CLI supports aggregation of parameters i.e. `-b1`, `-e18`, and `-i1` can be joined
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into `-b1e18i1`.
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#### The example of usage of static and dynamic LZ4 libraries with gcc/MinGW
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Use `cd example` and `make` to build `fullbench-dll` and `fullbench-lib`.
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`fullbench-dll` uses a dynamic LZ4 library from the `dll` directory.
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`fullbench-lib` uses a static LZ4 library from the `lib` directory.
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#### Using LZ4 DLL with gcc/MinGW
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The header files from `include\` and the dynamic library `dll\liblz4.dll`
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are required to compile a project using gcc/MinGW.
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The dynamic library has to be added to linking options.
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It means that if a project that uses LZ4 consists of a single `test-dll.c`
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file it should be linked with `dll\liblz4.dll`. For example:
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```
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gcc $(CFLAGS) -Iinclude\ test-dll.c -o test-dll dll\liblz4.dll
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```
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The compiled executable will require LZ4 DLL which is available at `dll\liblz4.dll`.
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#### The example of usage of static and dynamic LZ4 libraries with Visual C++
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Open `example\fullbench-dll.sln` to compile `fullbench-dll` that uses a
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dynamic LZ4 library from the `dll` directory. The solution works with Visual C++
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2010 or newer. When one will open the solution with Visual C++ newer than 2010
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then the solution will upgraded to the current version.
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#### Using LZ4 DLL with Visual C++
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The header files from `include\` and the import library `dll\liblz4.lib`
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are required to compile a project using Visual C++.
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1. The header files should be added to `Additional Include Directories` that can
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be found in project properties `C/C++` then `General`.
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2. The import library has to be added to `Additional Dependencies` that can
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be found in project properties `Linker` then `Input`.
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If one will provide only the name `liblz4.lib` without a full path to the library
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the directory has to be added to `Linker\General\Additional Library Directories`.
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The compiled executable will require LZ4 DLL which is available at `dll\liblz4.dll`.
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