C++ (Cpp) clPtr::Write示例

/// Internal routine to extract a single file from ZIP archive
int ExtractCurrentFile_ZIP( unzFile uf, const char* password, int* abort_flag, float* progress, const clPtr<iOStream>& fout )
{
	char filename_inzip[256];
	int err = UNZ_OK;
	void* buf;
	uInt size_buf;
	unz_file_info64 file_info;

	err = unzGetCurrentFileInfo64( uf, &file_info, filename_inzip, sizeof( filename_inzip ), NULL, 0, NULL, 0 );

	if ( err != UNZ_OK ) { return err; }

	uint64 file_size = ( uint64 )file_info.uncompressed_size;
	uint64 total_bytes = 0;

	unsigned char _buf[WRITEBUFFERSIZE];
	size_buf = WRITEBUFFERSIZE;
	buf = ( void* )_buf;

	err = unzOpenCurrentFilePassword( uf, password );

	if ( err != UNZ_OK ) { return err; }

	do
	{
		err = unzReadCurrentFile( uf, buf, size_buf );

		if ( err < 0 ) { break; }

		if ( err > 0 ) { total_bytes += err; fout->Write( buf, err ); }
	}
	while ( err > 0 );

	int close_err = unzCloseCurrentFile ( uf );

	if ( close_err != UNZ_OK ) { return close_err; }

	return err;
}