diff options
| -rwxr-xr-x[-rw-r--r--] | programs/lz4io.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/programs/lz4io.c b/programs/lz4io.c index 762bdb5..94bf5ea 100644..100755 --- a/programs/lz4io.c +++ b/programs/lz4io.c @@ -56,22 +56,25 @@ #include "lz4frame.h" -/***************************** +/****************************** * OS-specific Includes -*****************************/ +******************************/ #if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) # include <fcntl.h> /* _O_BINARY */ -# include <io.h> /* _setmode, _fileno */ +# include <io.h> /* _setmode, _fileno, _get_osfhandle */ # define SET_BINARY_MODE(file) _setmode(_fileno(file), _O_BINARY) +# include <Windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
+# define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPARSE, 0, 0, 0, 0, &dw, 0); } # if defined(_MSC_VER) && (_MSC_VER >= 1400) /* Avoid MSVC fseek()'s 2GiB barrier */ # define fseek _fseeki64 # endif #else # define SET_BINARY_MODE(file) +# define SET_SPARSE_FILE_MODE(file) #endif -/**************************** +/***************************** * Constants *****************************/ #define KB *(1 <<10) @@ -607,7 +610,7 @@ static unsigned long long decodeLZ4S(FILE* finput, FILE* foutput) static const size_t zeroBlockSize = 32 KB; while (oBuffPos < oBuffEnd) { - size_t* sPtr = (size_t*)oBuffPos; + const size_t* sPtr = (const size_t*)oBuffPos; size_t seg0Size = zeroBlockSize; size_t nbSizeT; size_t checked; @@ -717,6 +720,12 @@ int LZ4IO_decompressFilename(const char* input_filename, const char* output_file start = clock(); get_fileHandle(input_filename, output_filename, &finput, &foutput); + /* sparse file */ + if (g_sparseFileSupport && foutput)
+ {
+ SET_SPARSE_FILE_MODE(foutput);
+ } + /* Loop over multiple streams */ do { |