mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
2a41a6c122
|SocketConsumerBase| handles connection state for |UnixSocketConsumer| and its derived classes. Implementing classes must override a number of virtual methods, to handle notifications about changes to the state of the connection.
127 lines
2.5 KiB
C++
127 lines
2.5 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
|
|
/* vim: set ts=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 http://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
#include "SocketBase.h"
|
|
#include <string.h>
|
|
#include "nsThreadUtils.h"
|
|
|
|
namespace mozilla {
|
|
namespace ipc {
|
|
|
|
//
|
|
// UnixSocketRawData
|
|
//
|
|
|
|
UnixSocketRawData::UnixSocketRawData(size_t aSize)
|
|
: mSize(aSize)
|
|
, mCurrentWriteOffset(0)
|
|
{
|
|
mData = new uint8_t[mSize];
|
|
}
|
|
|
|
UnixSocketRawData::UnixSocketRawData(const void* aData, size_t aSize)
|
|
: mSize(aSize)
|
|
, mCurrentWriteOffset(0)
|
|
{
|
|
MOZ_ASSERT(aData || !mSize);
|
|
|
|
mData = new uint8_t[mSize];
|
|
memcpy(mData, aData, mSize);
|
|
}
|
|
|
|
//
|
|
// SocketConsumerBase
|
|
//
|
|
|
|
SocketConsumerBase::~SocketConsumerBase()
|
|
{
|
|
MOZ_ASSERT(mConnectionStatus == SOCKET_DISCONNECTED);
|
|
}
|
|
|
|
SocketConnectionStatus
|
|
SocketConsumerBase::GetConnectionStatus() const
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
return mConnectionStatus;
|
|
}
|
|
|
|
int
|
|
SocketConsumerBase::GetSuggestedConnectDelayMs() const
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
return mConnectDelayMs;
|
|
}
|
|
|
|
void
|
|
SocketConsumerBase::NotifySuccess()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
mConnectionStatus = SOCKET_CONNECTED;
|
|
mConnectTimestamp = PR_IntervalNow();
|
|
OnConnectSuccess();
|
|
}
|
|
|
|
void
|
|
SocketConsumerBase::NotifyError()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
mConnectionStatus = SOCKET_DISCONNECTED;
|
|
mConnectDelayMs = CalculateConnectDelayMs();
|
|
OnConnectError();
|
|
}
|
|
|
|
void
|
|
SocketConsumerBase::NotifyDisconnect()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
mConnectionStatus = SOCKET_DISCONNECTED;
|
|
mConnectDelayMs = CalculateConnectDelayMs();
|
|
OnDisconnect();
|
|
}
|
|
|
|
uint32_t
|
|
SocketConsumerBase::CalculateConnectDelayMs() const
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
uint32_t connectDelayMs = mConnectDelayMs;
|
|
|
|
if ((PR_IntervalNow()-mConnectTimestamp) > connectDelayMs) {
|
|
// reset delay if connection has been opened for a while, or...
|
|
connectDelayMs = 0;
|
|
} else if (!connectDelayMs) {
|
|
// ...start with a delay of ~1 sec, or...
|
|
connectDelayMs = 1<<10;
|
|
} else if (connectDelayMs < (1<<16)) {
|
|
// ...otherwise increase delay by a factor of 2
|
|
connectDelayMs <<= 1;
|
|
}
|
|
return connectDelayMs;
|
|
}
|
|
|
|
SocketConsumerBase::SocketConsumerBase()
|
|
: mConnectionStatus(SOCKET_DISCONNECTED)
|
|
, mConnectTimestamp(0)
|
|
, mConnectDelayMs(0)
|
|
{ }
|
|
|
|
void
|
|
SocketConsumerBase::SetConnectionStatus(
|
|
SocketConnectionStatus aConnectionStatus)
|
|
{
|
|
mConnectionStatus = aConnectionStatus;
|
|
}
|
|
|
|
}
|
|
}
|