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64a64fe325
--HG-- extra : rebase_source : 2958f582f43bfac86ec29d784b4fb8825ca17257 extra : histedit_source : 96e39e36cbe506332d761c375b902284a695901a%2C245fc9ec3c6a3bbf4e5e5ce7b0da63f4477f36b9
83 lines
2.3 KiB
Plaintext
83 lines
2.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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%{C++
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#include "nsDependentString.h"
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#include <stdio.h>
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%}
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interface nsIFile;
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[ptr] native FILE(FILE);
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/**
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* A simple interface for writing to a .gz file.
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*
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* Note that the file that this interface produces has a different format than
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* what you'd get if you compressed your data as a gzip stream and dumped the
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* result to a file.
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*
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* The standard gunzip tool cannot decompress a raw gzip stream, but can handle
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* the files produced by this interface.
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*/
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[scriptable, uuid(6bd5642c-1b90-4499-ba4b-199f27efaba5)]
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interface nsIGZFileWriter : nsISupports
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{
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/**
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* Initialize this object. We'll write our gzip'ed data to the given file,
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* overwriting its contents if the file exists.
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*
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* init() will return an error if called twice. It's an error to call any
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* other method on this interface without first calling init().
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*/
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void init(in nsIFile file);
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/**
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* Alternate version of init() for use when the file is already opened;
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* e.g., with a FileDescriptor passed over IPC.
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*/
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[noscript] void initANSIFileDesc(in FILE file);
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/**
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* Write the given string to the file.
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*/
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void write(in AUTF8String str);
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/*
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* The following two overloads of Write() are C++ because we can't overload
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* methods in XPIDL. Anyway, they don't add much functionality for JS
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* callers.
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*/
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%{C++
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/**
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* Write the given char* to the file (not including the null-terminator).
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*/
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nsresult Write(const char* str)
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{
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return Write(str, strlen(str));
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}
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/**
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* Write |length| bytes of |str| to the file.
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*/
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nsresult Write(const char* str, uint32_t len)
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{
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return Write(nsDependentCString(str, len));
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}
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%}
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/**
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* Close this nsIGZFileWriter. Classes implementing nsIGZFileWriter will run
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* this method when the underlying object is destroyed, so it's not strictly
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* necessary to explicitly call it from your code.
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*
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* It's an error to call this method twice, and it's an error to call write()
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* after finish() has been called.
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*/
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void finish();
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};
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