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- add compressed network messages for nmtLaunch and nmtBroadCastSetup (not backward compatible)

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This commit is contained in:
SoftCoder
2015-12-31 13:12:26 -08:00
parent 888254400e
commit eb15f8d701
4 changed files with 124 additions and 7 deletions
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2
source/shared_lib/include/compression/compression_utils.h
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@@ -20,6 +20,8 @@ namespace Shared{ namespace CompressionUtil{
bool compressFileToZIPFile(string inFile, string outFile, int compressionLevel=5);
bool extractFileFromZIPFile(string inFile, string outFile);
std::pair<unsigned char *,unsigned long> compressMemoryToMemory(unsigned char *input, unsigned long input_len, int compressionLevel=5);
std::pair<unsigned char *,unsigned long> extractMemoryToMemory(unsigned char *input, unsigned long input_len, unsigned long max_output_len);
}};

35
source/shared_lib/sources/compression/compression_utils.cpp
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@@ -324,4 +324,39 @@ bool extractFileFromZIPFile(string inFile, string outFile) {
return(result == EXIT_SUCCESS ? true : false);
}
std::pair<unsigned char *,unsigned long> compressMemoryToMemory(unsigned char *input, unsigned long input_len, int compressionLevel) {
// Like compress() but with more control, level may range from 0 (storing) to 9 (max. compression)
unsigned long compressed_buffer_len = input_len + 100;
unsigned char *compressed_buffer = new unsigned char[compressed_buffer_len+1];
memset(compressed_buffer,0,compressed_buffer_len+1);
unsigned char *decompressed_buffer = new unsigned char[input_len+1];
memcpy(decompressed_buffer,input,input_len);
//printf("compress2 start size: %lu\n",input_len);
int result = compress2(compressed_buffer, &compressed_buffer_len, decompressed_buffer, input_len, compressionLevel);
//printf("compress2 returned: %d start size: %lu end size: %lu\n",result,input_len,compressed_buffer_len);
delete [] decompressed_buffer;
return make_pair(compressed_buffer,compressed_buffer_len);
}
std::pair<unsigned char *,unsigned long> extractMemoryToMemory(unsigned char *input, unsigned long input_len, unsigned long max_output_len) {
// Like compress() but with more control, level may range from 0 (storing) to 9 (max. compression)
unsigned long decompressed_buffer_len = max_output_len;
unsigned char *decompressed_buffer = new unsigned char[decompressed_buffer_len+1];
memset(decompressed_buffer,0,decompressed_buffer_len+1);
//printf("#1uncompress start size: %lu\n",input_len);
unsigned char *compressed_buffer = new unsigned char[input_len+1];
memcpy(compressed_buffer,input,input_len);
//printf("#2uncompress start size: %lu\n",input_len);
int result = uncompress(decompressed_buffer, &decompressed_buffer_len, compressed_buffer, input_len);
//printf("uncompress returned: %d start size: %lu end size: %lu\n",result,input_len,decompressed_buffer_len);
delete [] compressed_buffer;
return make_pair(decompressed_buffer,decompressed_buffer_len);
}
}}