gecko-dev/netwerk/base/SimpleBuffer.h
Valentin Gosu 1a1f42da37 Bug 1714307 - Run modernize-use-default-member-init --fix check on netwerk r=necko-reviewers,kershaw
This changeset is the result of adding modernize-use-default-member-init to
tools/clang-tidy/config.yaml then proceeding to run
`./mach static-analysis check netwerk/ --fix`
I then went through the resulting fix and manually updated all of the member
variables which were missed due to them having a non-trivial constructor.

Note that the tool was only run on Linux, so code that only runs on some
platforms may have been missed.

The member variables that are still initialized in the contructor definition
are:
  - bitfields (not all currently supported compilers allow default-member-init
  - variables that are initialized via a parameter
  - variables that use code not visible in the header file

There are a few advantages to landing this change:
- fewer lines of code - now declaration is in the same place as initialization
  this also makes it easier to see when looking at the header.
- it makes it harder to miss initializing a member when adding a new contructor
- variables that depend on an include guard look much nicer now

Additionally I removed some unnecessary reinitialization of NetAddr members
(it has a constructor that does that now), and changed nsWifiScannerDBus to
use the thread-safe strtok_r instead of strtok.

Differential Revision: https://phabricator.services.mozilla.com/D116980
2021-06-11 07:10:41 +00:00

56 lines
1.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 SimpleBuffer_h__
#define SimpleBuffer_h__
/*
This class is similar to a nsPipe except it does not have any locking, stores
an unbounded amount of data, can only be used on one thread, and has much
simpler result code semantics to deal with.
*/
#include "prtypes.h"
#include "mozilla/LinkedList.h"
namespace mozilla {
namespace net {
class SimpleBufferPage : public LinkedListElement<SimpleBufferPage> {
public:
SimpleBufferPage() = default;
static const size_t kSimpleBufferPageSize = 32000;
private:
friend class SimpleBuffer;
char mBuffer[kSimpleBufferPageSize]{0};
size_t mReadOffset{0};
size_t mWriteOffset{0};
};
class SimpleBuffer {
public:
SimpleBuffer() = default;
~SimpleBuffer() = default;
nsresult Write(char* src, size_t len); // return OK or OUT_OF_MEMORY
size_t Read(char* dest, size_t maxLen); // return bytes read
size_t Available();
void Clear();
private:
NS_DECL_OWNINGTHREAD
nsresult mStatus{NS_OK};
AutoCleanLinkedList<SimpleBufferPage> mBufferList;
size_t mAvailable{0};
};
} // namespace net
} // namespace mozilla
#endif