t-mat

sudo apt-get install -y git gcc-mingw32 libncurses5-dev
cd
git clone https://github.com/rmyorston/busybox-w32.git
cd ~/busybox-w32
find . -name "*" -exec sed -i "s/i686-pc-mingw32-/i686-w64-mingw32-/g" '{}' \;
make mingw32_defconfig
make menuconfig
# Exit menuconfig.
busybox sed -i '417 s/# undef HAVE_VASPRINTF$//g' include/platform.h

t-mat

// LZ4 streaming API example
#define _CRT_SECURE_NO_WARNINGS // for MSVC
#include "lz4.h"

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

enum {

t-mat

#include <iostream>
#include <string>

template<class Char>
class ForEachNullTreminatedStringIterator {
    using ThisClass = ForEachNullTreminatedStringIterator;

public:
    ForEachNullTreminatedStringIterator() : p{} {}
    ForEachNullTreminatedStringIterator(Char* p) : p{p} {}

t-mat

Results

Note : -my-streaming method is line-by-line LZ4 streaming compression.

Bytes	Ratio	File
205242368	1.0	access_log_Jul95
51008234	4.02	access_log_Jul95.lz4 -my-streaming
39127074	5.25	access_log_Jul95.lz4 -1
24648061	8.33	access_log_Jul95.lz4 -9

t-mat

## Old
##
## LIBVER_MAJOR=`sed -n '/LZ4_VERSION_MAJOR/s/.*\s\+\([0-9]\+\).*/\1/p' < lz4.h`
## LIBVER_MINOR=`sed -n '/LZ4_VERSION_MINOR/s/.*\s\+\([0-9]\+\).*/\1/p' < lz4.h`
## LIBVER_PATCH=`sed -n '/LZ4_VERSION_RELEASE/s/.*\s\+\([0-9]\+\).*/\1/p' < lz4.h`

## New
## 
##   (1) Need 'define ' to match only one line.
##   (2) Use ' ' instead of '\s' for the compatibility. (Perhaps '[:blank:]' is better)

t-mat

set LANG=C
set LC_MESSAGES=C
svn diff > diff.txt

t-mat

Using lastest QEMU and Raspbian on Windows (x64)

Prerequisite

• Put curl and 7z on your %PATH%

Downloading

t-mat

#include <stdio.h>
#include "lz4Frame.h"

size_t LZ4F_getSrcSize(const LZ4F_preferences_t* preferences);  // still missing function ?

int main() {
    int result = EXIT_FAILURE;

    FILE* inpFp = fopen("src.bin", "rb");
    FILE* outFp = fopen("dst.lz4", "wb");

t-mat

#include <stdio.h>
#include "lz4frame.h"

size_t compress(LZ4F_compressionContext_t* ctx, FILE* outFp, FILE* inpFp,
    void* dstBuffer, size_t dstMaxSize, void* srcBuffer, size_t srcSize,
    const LZ4F_compressOptions_t* options)
{
    // Maybe LZ4F_compressBegin()'s compressOptions seems to have overlooked.
    const size_t headerSize = LZ4F_compressBegin(
        ctx, dstBuffer, dstMaxSize, options);

t-mat

#include <stdio.h>
#include "lz4frame.h"

// Upper bound of total output frame size
size_t LZ4F_compressFrameBound(size_t srcSize, const LZ4F_preferences_t* preferences);

size_t compress(
    LZ4F_compressionContext_t* ctx,
    char* outPtr, size_t outSizeMax, const char* inpPtr, size_t inpSize,
    const LZ4F_compressOptions_t* options, const LZ4F_preferences_t* preferences