зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
2.5 KiB
C++
108 строки
2.5 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
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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 "BrowserStreamParent.h"
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#include "PluginInstanceParent.h"
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#include "nsNPAPIPlugin.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/Unused.h"
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// How much data are we willing to send across the wire
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// in one chunk?
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static const int32_t kSendDataChunk = 0xffff;
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namespace mozilla {
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namespace plugins {
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BrowserStreamParent::BrowserStreamParent(PluginInstanceParent* npp,
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NPStream* stream)
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: mNPP(npp)
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, mStream(stream)
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, mState(INITIALIZING)
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{
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mStream->pdata = static_cast<AStream*>(this);
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nsNPAPIStreamWrapper* wrapper =
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reinterpret_cast<nsNPAPIStreamWrapper*>(mStream->ndata);
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if (wrapper) {
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mStreamListener = wrapper->GetStreamListener();
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}
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}
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BrowserStreamParent::~BrowserStreamParent()
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{
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mStream->pdata = nullptr;
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}
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void
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BrowserStreamParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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// Implement me! Bug 1005159
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}
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void
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BrowserStreamParent::NPP_DestroyStream(NPReason reason)
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{
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NS_ASSERTION(ALIVE == mState || INITIALIZING == mState,
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"NPP_DestroyStream called twice?");
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bool stillInitializing = INITIALIZING == mState;
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if (stillInitializing) {
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mState = DEFERRING_DESTROY;
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} else {
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mState = DYING;
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Unused << SendNPP_DestroyStream(reason);
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}
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}
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mozilla::ipc::IPCResult
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BrowserStreamParent::RecvStreamDestroyed()
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{
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if (DYING != mState) {
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NS_ERROR("Unexpected state");
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return IPC_FAIL_NO_REASON(this);
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}
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mStreamPeer = nullptr;
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mState = DELETING;
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IProtocol* mgr = Manager();
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if (!Send__delete__(this)) {
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return IPC_FAIL_NO_REASON(mgr);
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}
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return IPC_OK();
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}
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int32_t
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BrowserStreamParent::WriteReady()
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{
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if (mState == INITIALIZING) {
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return 0;
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}
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return kSendDataChunk;
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}
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int32_t
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BrowserStreamParent::Write(int32_t offset,
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int32_t len,
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void* buffer)
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{
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PLUGIN_LOG_DEBUG_FUNCTION;
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NS_ASSERTION(ALIVE == mState, "Sending data after NPP_DestroyStream?");
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NS_ASSERTION(len > 0, "Non-positive length to NPP_Write");
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if (len > kSendDataChunk)
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len = kSendDataChunk;
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return SendWrite(offset,
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mStream->end,
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nsCString(static_cast<char*>(buffer), len)) ?
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len : -1;
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}
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} // namespace plugins
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} // namespace mozilla
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