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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /modules/libjar/zipwriter/nsDeflateConverter.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'modules/libjar/zipwriter/nsDeflateConverter.h')
-rw-r--r--modules/libjar/zipwriter/nsDeflateConverter.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/modules/libjar/zipwriter/nsDeflateConverter.h b/modules/libjar/zipwriter/nsDeflateConverter.h
new file mode 100644
index 000000000..9678af87d
--- /dev/null
+++ b/modules/libjar/zipwriter/nsDeflateConverter.h
@@ -0,0 +1,63 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef _nsDeflateConverter_h_
+#define _nsDeflateConverter_h_
+
+#include "nsIStreamConverter.h"
+#include "nsCOMPtr.h"
+#include "nsIPipe.h"
+#include "zlib.h"
+#include "mozilla/Attributes.h"
+
+#define DEFLATECONVERTER_CID { 0x461cd5dd, 0x73c6, 0x47a4, \
+ { 0x8c, 0xc3, 0x60, 0x3b, 0x37, 0xd8, 0x4a, 0x61 } }
+
+#define ZIP_BUFLEN (4 * 1024 - 1)
+
+class nsDeflateConverter final : public nsIStreamConverter
+{
+public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIREQUESTOBSERVER
+ NS_DECL_NSISTREAMLISTENER
+ NS_DECL_NSISTREAMCONVERTER
+
+ nsDeflateConverter()
+ {
+ // 6 is Z_DEFAULT_COMPRESSION but we need the actual value
+ mLevel = 6;
+ }
+
+ explicit nsDeflateConverter(int32_t level)
+ {
+ mLevel = level;
+ }
+
+private:
+
+ ~nsDeflateConverter()
+ {
+ }
+
+ enum WrapMode {
+ WRAP_ZLIB,
+ WRAP_GZIP,
+ WRAP_NONE
+ };
+
+ WrapMode mWrapMode;
+ uint64_t mOffset;
+ int32_t mLevel;
+ nsCOMPtr<nsIStreamListener> mListener;
+ nsCOMPtr<nsISupports> mContext;
+ z_stream mZstream;
+ unsigned char mWriteBuffer[ZIP_BUFLEN];
+
+ nsresult Init();
+ nsresult PushAvailableData(nsIRequest *aRequest, nsISupports *aContext);
+};
+
+#endif