The Tor Browser: netwerk/ipc/RemoteOpenFileChild.cpp@6474c204b198 (annotated)

netwerk/ipc/RemoteOpenFileChild.cpp@6474c204b198 (annotated)

netwerk/ipc/RemoteOpenFileChild.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* vim: set sw=2 ts=8 et 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 "RemoteOpenFileChild.h"
 #include "mozilla/unused.h"
 #include "mozilla/ipc/FileDescriptor.h"
 #include "mozilla/ipc/FileDescriptorUtils.h"
 #include "mozilla/ipc/URIUtils.h"
 #include "mozilla/net/NeckoChild.h"
 #include "nsThreadUtils.h"
 #include "nsJARProtocolHandler.h"
 #include "nsIRemoteOpenFileListener.h"
 #include "nsProxyRelease.h"
 // needed to alloc/free NSPR file descriptors
 #include "private/pprio.h"
 using namespace mozilla::ipc;
 namespace mozilla {
 namespace net {
 //-----------------------------------------------------------------------------
 // Helper class to dispatch events async on windows/OSX
 //-----------------------------------------------------------------------------
 class CallsListenerInNewEvent : public nsRunnable
 {
 public:
     CallsListenerInNewEvent(nsIRemoteOpenFileListener *aListener, nsresult aRv)
       : mListener(aListener), mRV(aRv)
     {
         MOZ_ASSERT(NS_IsMainThread());
         MOZ_ASSERT(aListener);
     }
     void Dispatch()
     {
         MOZ_ASSERT(NS_IsMainThread());
         nsresult rv = NS_DispatchToCurrentThread(this);
         NS_ENSURE_SUCCESS_VOID(rv);
     }
 private:
     NS_IMETHOD Run()
     {
         MOZ_ASSERT(NS_IsMainThread());
         MOZ_ASSERT(mListener);
         mListener->OnRemoteFileOpenComplete(mRV);
         return NS_OK;
     }
     nsCOMPtr<nsIRemoteOpenFileListener> mListener;
     nsresult mRV;
 };
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild
 //-----------------------------------------------------------------------------
 NS_IMPL_ISUPPORTS(RemoteOpenFileChild,
                   nsIFile,
                   nsIHashable,
                   nsICachedFileDescriptorListener)
 RemoteOpenFileChild::RemoteOpenFileChild(const RemoteOpenFileChild& other)
   : mTabChild(other.mTabChild)
   , mNSPRFileDesc(other.mNSPRFileDesc)
   , mAsyncOpenCalled(other.mAsyncOpenCalled)
   , mNSPROpenCalled(other.mNSPROpenCalled)
 {
   // Note: don't clone mListener or we'll have a refcount leak.
   other.mURI->Clone(getter_AddRefs(mURI));
   if (other.mAppURI) {
     other.mAppURI->Clone(getter_AddRefs(mAppURI));
   }
   other.mFile->Clone(getter_AddRefs(mFile));
 }
 RemoteOpenFileChild::~RemoteOpenFileChild()
 {
   if (NS_IsMainThread()) {
     if (mListener) {
       NotifyListener(NS_ERROR_UNEXPECTED);
     }
   } else {
     nsCOMPtr<nsIThread> mainThread = do_GetMainThread();
     if (mainThread) {
       MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_ProxyRelease(mainThread, mURI, true)));
       MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_ProxyRelease(mainThread, mAppURI, true)));
       MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_ProxyRelease(mainThread, mListener,
                                                    true)));
       TabChild* tabChild;
       mTabChild.forget(&tabChild);
       if (tabChild) {
         nsCOMPtr<nsIRunnable> runnable =
           NS_NewNonOwningRunnableMethod(tabChild, &TabChild::Release);
         MOZ_ASSERT(runnable);
         MOZ_ALWAYS_TRUE(NS_SUCCEEDED(mainThread->Dispatch(runnable,
                                                           NS_DISPATCH_NORMAL)));
       }
     } else {
       using mozilla::unused;
       NS_WARNING("RemoteOpenFileChild released after thread shutdown, leaking "
                  "its members!");
       unused << mURI.forget();
       unused << mAppURI.forget();
       unused << mListener.forget();
       unused << mTabChild.forget();
     }
   }
   if (mNSPRFileDesc) {
     // If we handed out fd we shouldn't have pointer to it any more.
     MOZ_ASSERT(!mNSPROpenCalled);
     // PR_Close both closes the file and deallocates the PRFileDesc
     PR_Close(mNSPRFileDesc);
   }
 }
 nsresult
 RemoteOpenFileChild::Init(nsIURI* aRemoteOpenUri, nsIURI* aAppUri)
 {
   if (!aRemoteOpenUri) {
     return NS_ERROR_INVALID_ARG;
   }
   if (aAppUri) {
     aAppUri->Clone(getter_AddRefs(mAppURI));
   }
   nsAutoCString scheme;
   nsresult rv = aRemoteOpenUri->GetScheme(scheme);
   NS_ENSURE_SUCCESS(rv, rv);
   if (!scheme.EqualsLiteral("remoteopenfile")) {
     return NS_ERROR_INVALID_ARG;
   }
   // scheme of URI is not file:// so this is not a nsIFileURL.  Convert to one.
   nsCOMPtr<nsIURI> clonedURI;
   rv = aRemoteOpenUri->Clone(getter_AddRefs(clonedURI));
   NS_ENSURE_SUCCESS(rv, rv);
   clonedURI->SetScheme(NS_LITERAL_CSTRING("file"));
   nsAutoCString spec;
   clonedURI->GetSpec(spec);
   rv = NS_NewURI(getter_AddRefs(mURI), spec);
   NS_ENSURE_SUCCESS(rv, rv);
   // Get nsIFile
   nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(mURI);
   if (!fileURL) {
     return NS_ERROR_UNEXPECTED;
   }
   rv = fileURL->GetFile(getter_AddRefs(mFile));
   NS_ENSURE_SUCCESS(rv, rv);
   return NS_OK;
 }
 nsresult
 RemoteOpenFileChild::AsyncRemoteFileOpen(int32_t aFlags,
                                          nsIRemoteOpenFileListener* aListener,
                                          nsITabChild* aTabChild)
 {
   if (!mFile) {
     return NS_ERROR_NOT_INITIALIZED;
   }
   if (!aListener) {
     return NS_ERROR_INVALID_ARG;
   }
   if (mAsyncOpenCalled) {
     return NS_ERROR_ALREADY_OPENED;
   }
   if (aFlags != PR_RDONLY) {
     return NS_ERROR_NOT_AVAILABLE;
   }
   mTabChild = static_cast<TabChild*>(aTabChild);
   if (MissingRequiredTabChild(mTabChild, "remoteopenfile")) {
     return NS_ERROR_ILLEGAL_VALUE;
   }
 #if defined(XP_WIN) || defined(MOZ_WIDGET_COCOA)
   // Windows/OSX desktop builds skip remoting, and just open file in child
   // process when asked for NSPR handle
   nsRefPtr<CallsListenerInNewEvent> runnable =
     new CallsListenerInNewEvent(aListener, NS_OK);
   runnable->Dispatch();
   mAsyncOpenCalled = true;
   return NS_OK;
 #else
   nsString path;
   if (NS_FAILED(mFile->GetPath(path))) {
     MOZ_CRASH("Couldn't get path from file!");
   }
   if (mTabChild) {
     if (mTabChild->GetCachedFileDescriptor(path, this)) {
       // The file descriptor was found in the cache and OnCachedFileDescriptor()
       // will be called with it.
       return NS_OK;
     }
   }
   URIParams uri;
   SerializeURI(mURI, uri);
   OptionalURIParams appUri;
   SerializeURI(mAppURI, appUri);
   gNeckoChild->SendPRemoteOpenFileConstructor(this, uri, appUri);
   // The chrome process now has a logical ref to us until it calls Send__delete.
   AddIPDLReference();
   mListener = aListener;
   mAsyncOpenCalled = true;
   return NS_OK;
 #endif
 }
 void
 RemoteOpenFileChild::OnCachedFileDescriptor(const nsAString& aPath,
                                             const FileDescriptor& aFD)
 {
 #ifdef DEBUG
   if (!aPath.IsEmpty()) {
     MOZ_ASSERT(mFile);
     nsString path;
     MOZ_ASSERT(NS_SUCCEEDED(mFile->GetPath(path)));
     MOZ_ASSERT(path == aPath, "Paths don't match!");
   }
 #endif
   HandleFileDescriptorAndNotifyListener(aFD, /* aFromRecvDelete */ false);
 }
 void
 RemoteOpenFileChild::HandleFileDescriptorAndNotifyListener(
                                                       const FileDescriptor& aFD,
                                                       bool aFromRecvDelete)
 {
 #if defined(XP_WIN) || defined(MOZ_WIDGET_COCOA)
   MOZ_CRASH("OS X and Windows shouldn't be doing IPDL here");
 #else
   if (!mListener) {
     // We already notified our listener (either in response to a cached file
     // descriptor callback or through the normal messaging mechanism). Close the
     // file descriptor if it is valid.
     if (aFD.IsValid()) {
       nsRefPtr<CloseFileRunnable> runnable = new CloseFileRunnable(aFD);
       runnable->Dispatch();
     }
     return;
   }
   MOZ_ASSERT(!mNSPRFileDesc);
   nsRefPtr<TabChild> tabChild;
   mTabChild.swap(tabChild);
   // If RemoteOpenFile reply (Recv__delete__) for app's application.zip comes
   // back sooner than the parent-pushed fd (TabChild::RecvCacheFileDescriptor())
   // have TabChild cancel running callbacks, since we'll call them in
   // NotifyListener.
   if (tabChild && aFromRecvDelete) {
     nsString path;
     if (NS_FAILED(mFile->GetPath(path))) {
       MOZ_CRASH("Couldn't get path from file!");
     }
     tabChild->CancelCachedFileDescriptorCallback(path, this);
   }
   if (aFD.IsValid()) {
     mNSPRFileDesc = PR_ImportFile(aFD.PlatformHandle());
     if (!mNSPRFileDesc) {
       NS_WARNING("Failed to import file handle!");
     }
   }
   NotifyListener(mNSPRFileDesc ? NS_OK : NS_ERROR_FILE_NOT_FOUND);
 #endif
 }
 void
 RemoteOpenFileChild::NotifyListener(nsresult aResult)
 {
   MOZ_ASSERT(mListener);
   mListener->OnRemoteFileOpenComplete(aResult);
   mListener = nullptr;     // release ref to listener
   nsRefPtr<nsJARProtocolHandler> handler(gJarHandler);
   NS_WARN_IF_FALSE(handler, "nsJARProtocolHandler is already gone!");
   if (handler) {
     handler->RemoteOpenFileComplete(this, aResult);
   }
 }
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild::PRemoteOpenFileChild
 //-----------------------------------------------------------------------------
 bool
 RemoteOpenFileChild::Recv__delete__(const FileDescriptor& aFD)
 {
 #if defined(XP_WIN) || defined(MOZ_WIDGET_COCOA)
   NS_NOTREACHED("OS X and Windows shouldn't be doing IPDL here");
 #else
   HandleFileDescriptorAndNotifyListener(aFD, /* aFromRecvDelete */ true);
 #endif
   return true;
 }
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild::nsIFile functions that we override logic for
 //-----------------------------------------------------------------------------
 NS_IMETHODIMP
 RemoteOpenFileChild::Clone(nsIFile **file)
 {
   *file = new RemoteOpenFileChild(*this);
   NS_ADDREF(*file);
   // if we transferred ownership of file to clone, forget our pointer.
   if (mNSPRFileDesc) {
     mNSPRFileDesc = nullptr;
   }
   return NS_OK;
 }
 /* The main event: get file descriptor from parent process
  */
 NS_IMETHODIMP
 RemoteOpenFileChild::OpenNSPRFileDesc(int32_t aFlags, int32_t aMode,
                                       PRFileDesc **aRetval)
 {
 #if defined(XP_WIN) || defined(MOZ_WIDGET_COCOA)
   // Windows and OSX builds: just open nsIFile locally.
   return mFile->OpenNSPRFileDesc(aFlags, aMode, aRetval);
 #else
   if (aFlags != PR_RDONLY) {
     return NS_ERROR_NOT_AVAILABLE;
   }
   // Unlike regular nsIFile we can't (easily) support multiple open()s.
   if (mNSPROpenCalled) {
     return NS_ERROR_ALREADY_OPENED;
   }
   if (!mNSPRFileDesc) {
     // client skipped AsyncRemoteFileOpen() or didn't wait for result, or this
     // object has been cloned
     return NS_ERROR_NOT_AVAILABLE;
   }
   // hand off ownership (i.e responsibility to PR_Close() file handle) to caller
   *aRetval = mNSPRFileDesc;
   mNSPRFileDesc = nullptr;
   mNSPROpenCalled = true;
   return NS_OK;
 #endif
 }
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild::nsIFile functions that we delegate to underlying nsIFile
 //-----------------------------------------------------------------------------
 nsresult
 RemoteOpenFileChild::GetLeafName(nsAString &aLeafName)
 {
   return mFile->GetLeafName(aLeafName);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetNativeLeafName(nsACString &aLeafName)
 {
   return mFile->GetNativeLeafName(aLeafName);
 }
 nsresult
 RemoteOpenFileChild::GetTarget(nsAString &_retval)
 {
   return mFile->GetTarget(_retval);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetNativeTarget(nsACString &_retval)
 {
   return mFile->GetNativeTarget(_retval);
 }
 nsresult
 RemoteOpenFileChild::GetPath(nsAString &_retval)
 {
   return mFile->GetPath(_retval);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetNativePath(nsACString &_retval)
 {
   return mFile->GetNativePath(_retval);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Equals(nsIFile *inFile, bool *_retval)
 {
   return mFile->Equals(inFile, _retval);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Contains(nsIFile *inFile, bool recur, bool *_retval)
 {
   return mFile->Contains(inFile, recur, _retval);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetParent(nsIFile **aParent)
 {
   return mFile->GetParent(aParent);
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetFollowLinks(bool *aFollowLinks)
 {
   return mFile->GetFollowLinks(aFollowLinks);
 }
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild::nsIFile functions that are not currently supported
 //-----------------------------------------------------------------------------
 nsresult
 RemoteOpenFileChild::Append(const nsAString &node)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::AppendNative(const nsACString &fragment)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Normalize()
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Create(uint32_t type, uint32_t permissions)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::SetLeafName(const nsAString &aLeafName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetNativeLeafName(const nsACString &aLeafName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::InitWithPath(const nsAString &filePath)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::InitWithNativePath(const nsACString &filePath)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::InitWithFile(nsIFile *aFile)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetFollowLinks(bool aFollowLinks)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::AppendRelativePath(const nsAString &node)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::AppendRelativeNativePath(const nsACString &fragment)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetPersistentDescriptor(nsACString &aPersistentDescriptor)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetPersistentDescriptor(const nsACString &aPersistentDescriptor)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetRelativeDescriptor(nsIFile *fromFile, nsACString& _retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetRelativeDescriptor(nsIFile *fromFile,
                                    const nsACString& relativeDesc)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::CopyTo(nsIFile *newParentDir, const nsAString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::CopyToNative(nsIFile *newParent, const nsACString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::CopyToFollowingLinks(nsIFile *newParentDir,
                                   const nsAString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::CopyToFollowingLinksNative(nsIFile *newParent,
                                         const nsACString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 nsresult
 RemoteOpenFileChild::MoveTo(nsIFile *newParentDir, const nsAString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::MoveToNative(nsIFile *newParent, const nsACString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::RenameTo(nsIFile *newParentDir, const nsAString &newName)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Remove(bool recursive)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetPermissions(uint32_t *aPermissions)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetPermissions(uint32_t aPermissions)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetPermissionsOfLink(uint32_t *aPermissionsOfLink)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetPermissionsOfLink(uint32_t aPermissions)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetLastModifiedTime(PRTime *aLastModTime)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetLastModifiedTime(PRTime aLastModTime)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetLastModifiedTimeOfLink(PRTime *aLastModTimeOfLink)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetLastModifiedTimeOfLink(PRTime aLastModTimeOfLink)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetFileSize(int64_t *aFileSize)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::SetFileSize(int64_t aFileSize)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetFileSizeOfLink(int64_t *aFileSize)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Exists(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsWritable(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsReadable(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsExecutable(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsHidden(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsDirectory(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsFile(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsSymlink(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::IsSpecial(bool *_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::CreateUnique(uint32_t type, uint32_t attributes)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetDirectoryEntries(nsISimpleEnumerator **entries)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::OpenANSIFileDesc(const char *mode, FILE **_retval)
 {
   // TODO: can implement using fdopen()?
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Load(PRLibrary **_retval)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetDiskSpaceAvailable(int64_t *aDiskSpaceAvailable)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Reveal()
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::Launch()
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 //-----------------------------------------------------------------------------
 // RemoteOpenFileChild::nsIHashable functions that we delegate to underlying nsIFile
 //-----------------------------------------------------------------------------
 NS_IMETHODIMP
 RemoteOpenFileChild::Equals(nsIHashable* aOther, bool *aResult)
 {
   nsCOMPtr<nsIHashable> hashable = do_QueryInterface(mFile);
   MOZ_ASSERT(hashable);
   if (hashable) {
     return hashable->Equals(aOther, aResult);
   }
   return NS_ERROR_UNEXPECTED;
 }
 NS_IMETHODIMP
 RemoteOpenFileChild::GetHashCode(uint32_t *aResult)
 {
   nsCOMPtr<nsIHashable> hashable = do_QueryInterface(mFile);
   MOZ_ASSERT(hashable);
   if (hashable) {
     return hashable->GetHashCode(aResult);
   }
   return NS_ERROR_UNEXPECTED;
 }
 } // namespace net
 } // namespace mozilla

The Tor Browser / annotate

netwerk/ipc/RemoteOpenFileChild.cpp@6474c204b198 (annotated)

netwerk/ipc/RemoteOpenFileChild.cpp