1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/system/mac/nsNetworkLinkService.mm Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,198 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsNetworkLinkService.h"
1.10 +#include "nsCOMPtr.h"
1.11 +#include "nsIObserverService.h"
1.12 +#include "nsServiceManagerUtils.h"
1.13 +#include "nsString.h"
1.14 +#include "nsCRT.h"
1.15 +
1.16 +#import <Cocoa/Cocoa.h>
1.17 +#import <netinet/in.h>
1.18 +
1.19 +NS_IMPL_ISUPPORTS(nsNetworkLinkService,
1.20 + nsINetworkLinkService,
1.21 + nsIObserver)
1.22 +
1.23 +nsNetworkLinkService::nsNetworkLinkService()
1.24 + : mLinkUp(true)
1.25 + , mStatusKnown(false)
1.26 + , mReachability(NULL)
1.27 + , mCFRunLoop(NULL)
1.28 +{
1.29 +}
1.30 +
1.31 +nsNetworkLinkService::~nsNetworkLinkService()
1.32 +{
1.33 +}
1.34 +
1.35 +NS_IMETHODIMP
1.36 +nsNetworkLinkService::GetIsLinkUp(bool *aIsUp)
1.37 +{
1.38 + *aIsUp = mLinkUp;
1.39 + return NS_OK;
1.40 +}
1.41 +
1.42 +NS_IMETHODIMP
1.43 +nsNetworkLinkService::GetLinkStatusKnown(bool *aIsUp)
1.44 +{
1.45 + *aIsUp = mStatusKnown;
1.46 + return NS_OK;
1.47 +}
1.48 +
1.49 +NS_IMETHODIMP
1.50 +nsNetworkLinkService::GetLinkType(uint32_t *aLinkType)
1.51 +{
1.52 + NS_ENSURE_ARG_POINTER(aLinkType);
1.53 +
1.54 + // XXX This function has not yet been implemented for this platform
1.55 + *aLinkType = nsINetworkLinkService::LINK_TYPE_UNKNOWN;
1.56 + return NS_OK;
1.57 +}
1.58 +
1.59 +NS_IMETHODIMP
1.60 +nsNetworkLinkService::Observe(nsISupports *subject,
1.61 + const char *topic,
1.62 + const char16_t *data)
1.63 +{
1.64 + if (!strcmp(topic, "xpcom-shutdown")) {
1.65 + Shutdown();
1.66 + }
1.67 +
1.68 + return NS_OK;
1.69 +}
1.70 +
1.71 +nsresult
1.72 +nsNetworkLinkService::Init(void)
1.73 +{
1.74 + nsresult rv;
1.75 +
1.76 + nsCOMPtr<nsIObserverService> observerService =
1.77 + do_GetService("@mozilla.org/observer-service;1", &rv);
1.78 + NS_ENSURE_SUCCESS(rv, rv);
1.79 +
1.80 + rv = observerService->AddObserver(this, "xpcom-shutdown", false);
1.81 + NS_ENSURE_SUCCESS(rv, rv);
1.82 +
1.83 + // If the network reachability API can reach 0.0.0.0 without
1.84 + // requiring a connection, there is a network interface available.
1.85 + struct sockaddr_in addr;
1.86 + bzero(&addr, sizeof(addr));
1.87 + addr.sin_len = sizeof(addr);
1.88 + addr.sin_family = AF_INET;
1.89 + mReachability =
1.90 + ::SCNetworkReachabilityCreateWithAddress(NULL,
1.91 + (struct sockaddr *)&addr);
1.92 + if (!mReachability) {
1.93 + return NS_ERROR_NOT_AVAILABLE;
1.94 + }
1.95 +
1.96 + SCNetworkReachabilityContext context = {0, this, NULL, NULL, NULL};
1.97 + if (!::SCNetworkReachabilitySetCallback(mReachability,
1.98 + ReachabilityChanged,
1.99 + &context)) {
1.100 + NS_WARNING("SCNetworkReachabilitySetCallback failed.");
1.101 + ::CFRelease(mReachability);
1.102 + mReachability = NULL;
1.103 + return NS_ERROR_NOT_AVAILABLE;
1.104 + }
1.105 +
1.106 + // Get the current run loop. This service is initialized at startup,
1.107 + // so we shouldn't run in to any problems with modal dialog run loops.
1.108 + mCFRunLoop = [[NSRunLoop currentRunLoop] getCFRunLoop];
1.109 + if (!mCFRunLoop) {
1.110 + NS_WARNING("Could not get current run loop.");
1.111 + ::CFRelease(mReachability);
1.112 + mReachability = NULL;
1.113 + return NS_ERROR_NOT_AVAILABLE;
1.114 + }
1.115 + ::CFRetain(mCFRunLoop);
1.116 +
1.117 + if (!::SCNetworkReachabilityScheduleWithRunLoop(mReachability, mCFRunLoop,
1.118 + kCFRunLoopDefaultMode)) {
1.119 + NS_WARNING("SCNetworkReachabilityScheduleWIthRunLoop failed.");
1.120 + ::CFRelease(mReachability);
1.121 + mReachability = NULL;
1.122 + ::CFRelease(mCFRunLoop);
1.123 + mCFRunLoop = NULL;
1.124 + return NS_ERROR_NOT_AVAILABLE;
1.125 + }
1.126 +
1.127 + UpdateReachability();
1.128 +
1.129 + return NS_OK;
1.130 +}
1.131 +
1.132 +nsresult
1.133 +nsNetworkLinkService::Shutdown()
1.134 +{
1.135 + if (!::SCNetworkReachabilityUnscheduleFromRunLoop(mReachability,
1.136 + mCFRunLoop,
1.137 + kCFRunLoopDefaultMode)) {
1.138 + NS_WARNING("SCNetworkReachabilityUnscheduleFromRunLoop failed.");
1.139 + }
1.140 +
1.141 + ::CFRelease(mReachability);
1.142 + mReachability = NULL;
1.143 +
1.144 + ::CFRelease(mCFRunLoop);
1.145 + mCFRunLoop = NULL;
1.146 +
1.147 + return NS_OK;
1.148 +}
1.149 +
1.150 +void
1.151 +nsNetworkLinkService::UpdateReachability()
1.152 +{
1.153 + if (!mReachability) {
1.154 + return;
1.155 + }
1.156 +
1.157 + SCNetworkConnectionFlags flags;
1.158 + if (!::SCNetworkReachabilityGetFlags(mReachability, &flags)) {
1.159 + mStatusKnown = false;
1.160 + return;
1.161 + }
1.162 +
1.163 + bool reachable = (flags & kSCNetworkFlagsReachable) != 0;
1.164 + bool needsConnection = (flags & kSCNetworkFlagsConnectionRequired) != 0;
1.165 +
1.166 + mLinkUp = (reachable && !needsConnection);
1.167 + mStatusKnown = true;
1.168 +}
1.169 +
1.170 +void
1.171 +nsNetworkLinkService::SendEvent()
1.172 +{
1.173 + nsCOMPtr<nsIObserverService> observerService =
1.174 + do_GetService("@mozilla.org/observer-service;1");
1.175 + if (!observerService)
1.176 + return;
1.177 +
1.178 + const char *event;
1.179 + if (!mStatusKnown)
1.180 + event = NS_NETWORK_LINK_DATA_UNKNOWN;
1.181 + else
1.182 + event = mLinkUp ? NS_NETWORK_LINK_DATA_UP
1.183 + : NS_NETWORK_LINK_DATA_DOWN;
1.184 +
1.185 + observerService->NotifyObservers(static_cast<nsINetworkLinkService*>(this),
1.186 + NS_NETWORK_LINK_TOPIC,
1.187 + NS_ConvertASCIItoUTF16(event).get());
1.188 +}
1.189 +
1.190 +/* static */
1.191 +void
1.192 +nsNetworkLinkService::ReachabilityChanged(SCNetworkReachabilityRef target,
1.193 + SCNetworkConnectionFlags flags,
1.194 + void *info)
1.195 +{
1.196 + nsNetworkLinkService *service =
1.197 + static_cast<nsNetworkLinkService*>(info);
1.198 +
1.199 + service->UpdateReachability();
1.200 + service->SendEvent();
1.201 +}
