1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/modules/libjar/zipwriter/src/nsDeflateConverter.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 + */
1.8 +
1.9 +#ifndef _nsDeflateConverter_h_
1.10 +#define _nsDeflateConverter_h_
1.11 +
1.12 +#include "nsIStreamConverter.h"
1.13 +#include "nsCOMPtr.h"
1.14 +#include "nsIPipe.h"
1.15 +#include "zlib.h"
1.16 +#include "mozilla/Attributes.h"
1.17 +
1.18 +#define DEFLATECONVERTER_CID { 0x461cd5dd, 0x73c6, 0x47a4, \
1.19 + { 0x8c, 0xc3, 0x60, 0x3b, 0x37, 0xd8, 0x4a, 0x61 } }
1.20 +
1.21 +#define ZIP_BUFLEN (4 * 1024 - 1)
1.22 +
1.23 +class nsDeflateConverter MOZ_FINAL : public nsIStreamConverter
1.24 +{
1.25 +public:
1.26 + NS_DECL_ISUPPORTS
1.27 + NS_DECL_NSIREQUESTOBSERVER
1.28 + NS_DECL_NSISTREAMLISTENER
1.29 + NS_DECL_NSISTREAMCONVERTER
1.30 +
1.31 + nsDeflateConverter()
1.32 + {
1.33 + // 6 is Z_DEFAULT_COMPRESSION but we need the actual value
1.34 + mLevel = 6;
1.35 + }
1.36 +
1.37 + nsDeflateConverter(int32_t level)
1.38 + {
1.39 + mLevel = level;
1.40 + }
1.41 +
1.42 +private:
1.43 +
1.44 + ~nsDeflateConverter()
1.45 + {
1.46 + }
1.47 +
1.48 + enum WrapMode {
1.49 + WRAP_ZLIB,
1.50 + WRAP_GZIP,
1.51 + WRAP_NONE
1.52 + };
1.53 +
1.54 + WrapMode mWrapMode;
1.55 + uint64_t mOffset;
1.56 + int32_t mLevel;
1.57 + nsCOMPtr<nsIStreamListener> mListener;
1.58 + nsCOMPtr<nsISupports> mContext;
1.59 + z_stream mZstream;
1.60 + unsigned char mWriteBuffer[ZIP_BUFLEN];
1.61 +
1.62 + nsresult Init();
1.63 + nsresult PushAvailableData(nsIRequest *aRequest, nsISupports *aContext);
1.64 +};
1.65 +
1.66 +#endif
