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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 */
#ifndef nsGZFileWriter_h
#define nsGZFileWriter_h
#include "nsIGZFileWriter.h"
#include "zlib.h"
* A simple class for writing .gz files.
class nsGZFileWriter final : public nsIGZFileWriter {
virtual ~nsGZFileWriter();
enum Operation { Append, Create };
explicit nsGZFileWriter(Operation aMode = Create);
* nsIGZFileWriter exposes two non-virtual overloads of Write(). We
* duplicate them here so that you can call these overloads on a pointer
* to the concrete nsGZFileWriter class.
[[nodiscard]] nsresult Write(const char* aStr) {
return nsIGZFileWriter::Write(aStr);
[[nodiscard]] nsresult Write(const char* aStr, uint32_t aLen) {
return nsIGZFileWriter::Write(aStr, aLen);
Operation mMode;
bool mInitialized;
bool mFinished;
gzFile mGZFile;